Safety Precautions Before installing the unit, thoroughly read the following safety precautions. Observe these safety precautions for your safety. WARNING This symbol is intended to alert the user to the presence of important instructions that must be followed to avoid the risk of serious injury or death. CAUTION This symbol is intended to alert the user to the presence of important instructions that must be followed to avoid the risk of serious injury or damage to the unit.
WARNING Securely attach the terminal block cover (panel) to the unit. After completing the service work, check for a gas leak. If the terminal block cover (panel) is not installed properly, dust and/or water may infiltrate and pose a risk of electric shock, smoke, and/or fire. If leaked refrigerant is exposed to a heat source, such as a fan heater, stove, or electric grill, poisonous gases may be produced.
Precautions for handling units for use with R410A CAUTION Do not use the existing refrigerant piping. Use a vacuum pump with a reverse-flow check valve. A large amount of chlorine that is contained in the residual refrigerant and refrigerator oil in the existing piping may cause the refrigerator oil in the new unit to deteriorate. R410A is a high-pressure refrigerant and can cause the existing pipes to burst.
Before installing the unit WARNING Do not install the unit where a gas leak may occur. When installing the unit in a hospital, take appropriate measures to reduce noise interference. If gaseous refrigerant leaks and piles up around the unit, it may be ignited. High-frequency medical equipment may interfere with the normal operation of the air conditioner or vice versa. Do not use the unit to keep food items, animals, plants, artifacts, or for other special purposes.
Before installing the unit (moving and reinstalling the unit) and performing electrical work CAUTION Properly ground the unit. Periodically check the installation base for damage. Do not connect the grounding wire to a gas pipe, water pipe, lightning rod, or grounding wire from a telephone pole. Improper grounding may result in electric shock, smoke, fire, and/or malfunction due to noise interference. If the unit is left on a damaged platform, it may fall and cause injury.
Before the test run CAUTION Turn on the unit at least 12 hours before the test run. Do not operate the unit without panels and safety guards. Keep the unit turned on throughout the season. If the unit is turned off in the middle of a season, it may result in malfunctions. Rotating, high-temperature, or high-voltage parts on the unit pose a risk of burns and/or electric shock. To avoid the risk of electric shock or malfunction of the unit, do not operate switches with wet hands.
CONTENTS I Read Before Servicing [1] Read Before Servicing.............................................................................................................. 3 [2] Necessary Tools and Materials ................................................................................................ 4 [3] Piping Materials ........................................................................................................................ 5 [4] Storage of Piping ..........................................
CONTENTS IX Troubleshooting [1] Error Code Lists.................................................................................................................... 225 [2] Responding to Error Display on the Remote Controller........................................................ 228 [3] Investigation of Transmission Wave Shape/Noise ............................................................... 298 [4] Troubleshooting Principal Parts........................................................................
I Read Before Servicing [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] HWE10050 Read Before Servicing ....................................................................................................... 3 Necessary Tools and Materials.......................................................................................... 4 Piping Materials ................................................................................................................. 5 Storage of Piping .........................
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[ I Read Before Servicing ] I Read Before Servicing [1] Read Before Servicing 1. Check the type of refrigerant used in the system to be serviced. Refrigerant Type Multi air conditioner for building application CITY MULTI R2 YJM-A series R410A 2. Check the symptoms exhibited by the unit to be serviced. Refer to this service handbook for symptoms relating to the refrigerant cycle. 3. Thoroughly read the safety precautions at the beginning of this manual. 4.
[ I Read Before Servicing ] [2] Necessary Tools and Materials Prepare the following tools and materials necessary for installing and servicing the unit. Tools for use with R410A (Adaptability of tools that are for use with R22 or R407C) 1. To be used exclusively with R410A (not to be used if used with R22 or R407C) Tools/Materials Use Notes Gauge Manifold Evacuation and refrigerant charging Higher than 5.
[ I Read Before Servicing ] [3] Piping Materials Do not use the existing piping! 1. Copper pipe materials O-material (Annealed) Soft copper pipes (annealed copper pipes). They can easily be bent with hands. 1/2H-material (Drawn) Hard copper pipes (straight pipes). They are stronger than the O-material (Annealed) at the same radial thickness. The distinction between O-materials (Annealed) and 1/2H-materials (Drawn) is made based on the strength of the pipes themselves. 2.
[ I Read Before Servicing ] 4. Thickness and refrigerant type indicated on the piping materials Ask the pipe manufacturer for the symbols indicated on the piping material for new refrigerant. 5. Flare processing (O-material (Annealed) and OL-material only) The flare processing dimensions for the pipes that are used in the R410A system are larger than those in the R22 system. Flare processing dimensions (mm[in]) A dimension (mm) R410A R22, R407C ø6.35 [1/4"] 9.1 9.0 ø9.52 [3/8"] 13.2 13.0 ø12.
[ I Read Before Servicing ] [4] Storage of Piping 1. Storage location Store the pipes to be used indoors. (Warehouse at site or owner's warehouse) If they are left outdoors, dust, dirt, or moisture may infiltrate and contaminate the pipe. 2. Sealing the pipe ends Both ends of the pipes should be sealed until just before brazing. Keep elbow pipes and T-joints in plastic bags.
[ I Read Before Servicing ] [6] Brazing No changes have been made in the brazing procedures. Perform brazing with special care to keep foreign objects (such as oxide scale, water, and dust) out of the refrigerant system. Example: Inside the brazed connection Use of oxidized solder for brazing Use of non-oxidized solder for brazing 1. Items to be strictly observed Do not conduct refrigerant piping work outdoors if raining. Use non-oxidized solder.
[ I Read Before Servicing ] [7] Air Tightness Test No changes have been made in the detection method. Note that a refrigerant leak detector for R22 will not detect an R410A leak. Halide torch R22 leakage detector 1. Items to be strictly observed Pressurize the equipment with nitrogen up to the design pressure (4.15MPa[601psi]), and then judge the equipment's air tightness, taking temperature variations into account. Refrigerant R410A must be charged in its liquid state (vs. gaseous state). 2.
[ I Read Before Servicing ] [8] Vacuum Drying (Evacuation) (Photo1) 15010H (Photo2) 14010 Recommended vacuum gauge: ROBINAIR 14010 Thermistor Vacuum Gauge 1. Vacuum pump with a reverse-flow check valve (Photo1) To prevent the vacuum pump oil from flowing into the refrigerant circuit during power OFF or power failure, use a vacuum pump with a reverse-flow check valve. A reverse-flow check valve may also be added to the vacuum pump currently in use. 2.
[ I Read Before Servicing ] 7. Notes To evacuate air from the entire system Applying a vacuum through the check joints at the refrigerant service valve on the high and low pressure sides (BV1 and 2) is not enough to attain the desired vacuum pressure. Be sure to apply a vacuum through the check joints at the refrigerant service valve on the high and low pressure sides (BV1 and 2) and also through the check joints on the high and low pressure sides (CJ1 and 2).
[ I Read Before Servicing ] [9] Refrigerant Charging Cylinder without a siphon Cylinder with a siphon Cylinder Cylinder Cylinder color R410A is pink. Refrigerant charging in the liquid state Valve Valve liquid liquid 1. Reasons R410A is a pseudo-azeotropic HFC blend (boiling point R32=-52°C[-62°F], R125=-49°C[-52°F]) and can almost be handled the same way as a single refrigerant, such as R22. To be safe, however, draw out the refrigerant from the cylinder in the liquid phase.
[ I Read Before Servicing ] [11] Characteristics of the Conventional and the New Refrigerants 1. Chemical property As with R22, the new refrigerant (R410A) is low in toxicity and chemically stable nonflammable refrigerant. However, because the specific gravity of vapor refrigerant is greater than that of air, leaked refrigerant in a closed room will accumulate at the bottom of the room and may cause hypoxia. If exposed to an open flame, refrigerant will generate poisonous gases.
[ I Read Before Servicing ] [12] Notes on Refrigerating Machine Oil 1. Refrigerating machine oil in the HFC refrigerant system HFC type refrigerants use a refrigerating machine oil different from that used in the R22 system. Note that the ester oil used in the system has properties that are different from commercially available ester oil. Refrigerant Refrigerating machine oil R22 Mineral oil R407C Ester oil R410A Ester oil 2.
II Restrictions [1] [2] [3] [4] [5] [6] [7] System configuration ....................................................................................................... 17 Types and Maximum allowable Length of Cables ........................................................... 19 Switch Settings and Address Settings ............................................................................. 20 Sample System Connection.........................................................................................
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[ II Restrictions ] II Restrictions [1] System configuration 1. Table of compatible indoor units The table below summarizes the types of indoor units that are compatible with different types of outdoor units.
[ II Restrictions ] (2) High COP combinations Outdoor units Composing units Maximum total capacity of connectable indoor units Maximum number of connectable indoor units EP200 YJM-A - - 100 - 300 20 EP250 YJM-A - - 125 - 375 25 EP300 YJM-A - - 150 - 450 30 EP350 YJM-A - - 175 - 525 35 EP400 YSJM-A EP200YJM-A EP200YJM-A 200 - 600 40 EP450 YSJM-A EP250YJM-A EP200YJM-A 225 - 675 45 EP500 YSJM-A EP300YJM-A EP200YJM-A 250 - 750 50 YSJM-A1 EP250YJM-A EP250YJM-A 250 - 750 EP55
[ II Restrictions ] [2] Types and Maximum allowable Length of Cables 1. Wiring work (1) Notes 1) Have all electrical work performed by an authorized electrician according to the local regulations and instructions in this manual. 2) Install external transmission cables at least 5cm [1-31/32"] away from the power supply cable to avoid noise interference. (Do not put the control cable and power supply cable in the same conduit tube.) 3) Provide grounding for the outdoor unit as required.
[ II Restrictions ] 2) Remote controller wiring MA remote controller*1 ME remote controller*2 Type VCTF, VCTFK, CVV, CVS, VVR, VVF, VCT Shielded cable MVVS Number of cores 2-core cable 2-core cable Cable size 0.3 to 1.25mm2 *3 [AWG22 to 16] (0.75 to 1.25mm2 ) *4 [AWG18 to 16] 0.3 to 1.25mm2 *3 [AWG22 to 16] (0.75 to 1.25mm2 ) *4 [AWG18 to 16] 200 m [656ft] max. The section of the cable that exceeds 10m [32ft] must be included in the maximum indoor-outdoor transmission line distance.
[ II Restrictions ] 2. M-NET Address settings (1) Address settings table The need for address settings and the range of address setting depend on the configuration of the system. Unit or controller Symbol Address setting range Setting method Factory address setting IC 0, 01 to 50*1 *4 *6*7 Assign the smallest address to the main indoor unit in the group, and assign sequential address numbers to the rest of the indoor units in the same group.
[ II Restrictions ] (2) Power supply switch connector connection on the outdoor unit (Factory setting: The male power supply switch connector is connected to CN41.) There are limitations on the total number of units that are connectable to each refrigerant system. Refer to the DATABOOK for details.
[ II Restrictions ] (6) Miscellaneous settings Cooling-only setting for the indoor unit: Cooling only model (Factory setting: SW3-1 "OFF.") When using indoor unit as a cooling-only unit, set SW3-1 to ON. (7) Various types of control using input-output signal connector on the outdoor unit (various connection options) Type Usage Input Prohibiting cooling/heating operation (thermo OFF) by an external input to the outdoor unit.
[ II Restrictions ] Example of wiring connection (1) CN51 (2) CN3S Lamp power source Distant control board L1 Relay circuit Relay circuit X Y Y X L2 Adapter 1 Outdoor unit control board Adapter 2 1 2 X CN51 5 4 3 Outdoor unit control board CN3S 3 Preparations in the field Preparations in the field Maximum cable length is 10m X : Relay Contact rating voltage >= DC15V Contact rating current >= 0.
[ II Restrictions ] 3. Demand control 1) General outline of control Demand control is performed by using the external signal input to the 1-2 and 1-3 pins of CN3D on the outdoor units (OC and OS). Between 2 and 8 steps of demand control is possible by setting Dip SW4-4 on the outdoor units (OC and OS).
[ II Restrictions ] [4] Sample System Connection Examples of typical system connection are shown on pages [5] to [7]. Refer to the Installation Manual that came with each device or controller for details.
[ II Restrictions ] HWE10050 - 27 - GB
[ II Restrictions ] [5] An Example of a System to which an MA Remote Controller is connected 1. System with one outdoor unit (automatic address setup for both indoor and outdoor units) (1) Sample control wiring L1 Leave the male connector on CN41 as it is. SW2-1 OFF OS L2 Leave the male connector on CN41 as it is.
[ II Restrictions ] Set one of the MA remote controllers as a sub controller. (Refer to the Instruction Manual for the MA remote controller for the setting method.) Group operation of indoor units To perform a group operation of indoor units (IC), daisychain terminals 1 and 2 on the terminal block (TB15) on all indoor units (IC) in the same group, and then connect terminals 1 and 2 on the terminal block (TB15) on the indoor unit on one end to the terminal block on the MA remotecontroller.
[ II Restrictions ] 2. An example of a system with one outdoor unit to which 2 or more LOSSNAY units are connected (manual address setup for both indoor and outdoor units) (1) Sample control wiring Interlock operation with the ventilation unit L1 Leave the male connector on CN41 as it is. SW2-1 OFF OS Leave the male connector on CN41 as it is.
[ II Restrictions ] 2) Transmission line for centralized control No connection is required. (4) Wiring method 1) Indoor/outdoor transmission line Daisy-chain terminals M1 and M2 of the terminal block for indoor-outdoor transmission line (TB3) on the outdoor units (OC and OS), of the terminal block for indoor-outdoor transmission line (TB02) on the main and sub BC controllers (BC and BS), and of the terminal block for indoor-outdoor transmission line (TB5) on each indoor unit (IC).
[ II Restrictions ] 3. Group operation of units in a system with multiple outdoor units (1) Sample control wiring Interlock operation with the ventilation unit L12 L11 Move the male connector from CN41 to CN40. SW2-1 OFF Leave the male connector on CN41 as it is.
[ II Restrictions ] (4) Wiring method 1) Indoor/outdoor transmission line Same as [5] 2. Shielded cable connection Same as [5] 2. 2) Transmission line for centralized control problem with the outdoor unit whose power jumper was moved from CN41 to CN40, central control is not possible, even if TB7's are daisy-chained.) Only use shielded cables. Shielded cable connection Daisy-chain the S terminal on the terminal block (TB7) on the outdoor units (OC, OS) with the shield wire of the shielded cable.
[ II Restrictions ] 4. A system in which a system controller is connected to the transmission line for centralized control and which is powered from an outdoor unit (1) Sample control wiring Move the male connector from CN41 to CN40. SW2-1 OFF Leave the male connector on CN41 as it is.
[ II Restrictions ] (4) Wiring method 1) Indoor/outdoor transmission line Same as [5] 2. Only use shielded cables. Shielded cable connection Same as [5] 2. 2) Transmission line for centralized control Only use shielded cables. Shielded cable connection Daisy-chain the S terminal of the terminal block (TB7) on the system controller, OC, and OS with the shield of the shielded cable.
[ II Restrictions ] 5. An example of a system in which a system controller is connected to the indoor-outdoor transmission line (except LM adapter) (1) Sample control wiring CN41 CN40 Replace SW2-1 OFF ON Leave the male connector on CN41 as it is. SW2-1 OFF ON Group OS OC 51 53 TB3 M1 M2 TB3 M1 M2 TB02 M1 M2 S IC IC LC 01 02 03 07 TB5 M1 M2 S TB15 1 2 TB5 M1 M2 S TB5 M1 M2 S TB15 1 2 A B 1 2 A B 1 2 MA MA MA L22 Leave the male connector on CN41 as it is.
[ II Restrictions ] (4) Wiring method 1) Indoor/outdoor transmission line b) If TB7's on the outdoor units in the same refrigerant circuit are not daisy-chained, connect the transmission line for the central control system to TB7 of the OC. (Note a).To maintain the central control even during an OC failure or a power failure, connect TB7 on OC and OS together.
[ II Restrictions ] 6. A system with multiple BC controller connections (with a system controller connected to the centralized control line) (1) Sample control wiring L11 Leave the male connector on CN41 as it is.
[ II Restrictions ] (4) Wiring method 1) b) If TB7's on the outdoor units in the same refrigerant circuit are not daisy-chained, connect the transmission line for the central control system to TB7 of the OC. (Note a).To maintain the central control even during an OC failure or a power failure, connect TB7 on OC and OS together. (If there is a problem with the outdoor unit whose power jumper was moved from CN41 to CN40, central control is not possible, even if TB7's are daisy-chained.
[ II Restrictions ] (5) Address setting method Pro cedures 1 Address setting range Unit or controller Indoor unit Main unit IC 01 to 50 Sub unit Setting method Notes Assign the smallest address to the main unit in the group. In a system with a sub BC controller, make the settings for the indoor units in the following order.
[ II Restrictions ] HWE10050 - 41 - GB
[ II Restrictions ] [6] An Example of a System to which an ME Remote Controller is connected (1) Sample control wiring Interlock operation with the ventilation unit L12 L11 Move the male connector from CN41 to CN40. SW2-1 OFF ON Leave the male connector on CN41 as it is.
[ II Restrictions ] (3) Maximum allowable length 1) Indoor/outdoor transmission line Same as [5] 3. 2) Transmission line for centralized control Same as [5] 4. 3) ME remote controller wiring Maximum overall line length (0.3 to 1.25mm2 [AWG22 to 16]) m1 10m [32ft] m2+m3 10m [32ft] If the standard-supplied cable must be extended, use a cable with a diameter of 1.25mm2 [AWG16].
[ II Restrictions ] [7] An Example of a System to which both MA Remote Controller and ME Remote Controller are connected (1) Sample control wiring L12 L11 Move the male connector from CN41 to CN40. SW2-1 OFF ON Leave the male connector on CN41 as it is.
[ II Restrictions ] Group operation of indoor units) Same as [5] 1. 4) ME remote controller wiring (When 2 remote controllers are connected to the system Group operation of indoor units) Same as [6] 5) LOSSNAY connection Same as [5] 4. 6) Switch setting Address setting is required as follows. (4) Wiring method 1) Indoor/outdoor transmission line Same as [5] 2. Shielded cable connection Same as [5] 2. 2) Transmission line for centralized control Same as [5] 4. Shielded cable connection Same as [5] 4.
[ II Restrictions ] (5) Address setting method Procedure s 1 2 Address setting range Unit or controller Operation with the MA remote controller Operation with the ME remote controller Setting method Notes Assign an address smaller than that of the indoor unit that is connected to the ME remote controller. Enter the same indoor unit group settings on the system controller as the ones that were entered on the MA remote controller.
[ II Restrictions ] [8] Restrictions on Pipe Length (1) System that requires 16 BC controller ports or fewer Outdoor unit *Use a main BC controller when connecting the outdoor units of (E)P400 model or above.
[ II Restrictions ] The height difference and the pipe length between BC controller and indoor units 70 Piping length between the main BC controller and indoor units (m[ft]) [229] 60 [196] 50 [164] 40 [131] 30 [98] 20 [64] 10 [32] 0 0 5 10 15 [16] [32] [49] Vertical separation between the main BC controller and indoor units (m[ft]) HWE10050 - 48 - GB
[ II Restrictions ] (2) System that requires more than 16 BC controller ports or with multiple BC controllers Outdoor unit Branch joint (CMY-Y202-G2) (CMY-Y102L-G2) (CMY-Y102S-G2) A H BC controller (main) H' C Reducer (P15 - P50 models) (Supplied with the BC Controller) Indoor (P15 - P80 models) D h1 BC controller (sub) h3 Branch joint (CMY-Y102S-G2) BC controller (sub) E h2 B Junction pipe (CMY-R160-J1) b a h1 Indoor e c Indoor Indoor (P100 - P250 mo
[ II Restrictions ] 1) A system that requires more than 16 BC controller ports requires two or three BC controllers (main and sub), and three pipes will be used between the main and the sub BC controllers. 2) When connecting two sub BC controllers, observe the maximum allowable length in the table above. 3) When connecting two sub BC controllers, install them in parallel.
[ II Restrictions ] (3) System that requires more than 16 BC controller ports or with multiple BC controllers Outdoor unit 1 Outdoor Twinning kit (High/Low press.) CMY-R100VBK: Outdoor unit P400(-A1) - P650/EP400 - EP600(-A) CMY-R200VBK: Outdoor unit P700 - P800(-A) CMY-R100XLVBK: Outdoor unit P800(-A1)/EP600(-A1) - EP700 CMY-R200XLVBK: Outdoor unit P850 - P900 On the low-pressure side, the twinning kit connects to the pipes on site inside the outdoor unit.
[ II Restrictions ] 7) The maximum capacity of the indoor units that is connectable to the CMB-P-V-GB1 types of sub BC controllers is P350 or below (when two GB1 type controllers are connected P350 or below for both combined) . The maximum total capacity of indoor units that is connectable to the sub BC controller CMB-P1016V-HB1 is P350 or below. If at least one CMB-P1016V-HB1 unit is connected, the maximum total capacity of connectable indoor units to a system with two sub controllers is P450 or below.
[ II Restrictions ] 1. Refrigerant pipe size (1) Between outdoor unit and BC controller (Part A) Unit : mm [inch] Outdoor units High-pressure pipe Low-pressure pipe (E)P200 ø15.88 [5/8"] ø19.05 [3/4"] (E)P250 ø19.05 [3/4"] ø22.2 [7/8"] (E)P300 ø19.05 [3/4"] ø22.2 [7/8"] (E)P350 ø19.05 [3/4"] ø28.58 [1-1/8"] (E)P400 ø22.2 [7/8"] ø28.58 [1-1/8"] (E)P450 ø22.2 [7/8"] ø28.58 [1-1/8"] (E)P500 ø22.2 [7/8"] ø28.58 [1-1/8"] (E)P550 ø28.58 [1-1/8"] ø28.58 [1-1/8"] (E)P600 ø28.
[ II Restrictions ] 2.
[ II Restrictions ] 1) To connect P15 - P50 models of indoor units use the reducer that is supplied with the BC controller. 2) To connect P100 - P250 models of indoor units (or when the total capacity of indoor units exceeds P81), use a junction pipe kit and merge the two nozzles. 70 [2-25/32"] Liquid pipe side:3/8F (Flare connection) Gas pipe side:5/8F (Flare connection) 234 [9-7/32"] Liquid pipe side:3/8F (Flare connection) Gas pipe side:5/8F (Flare connection) Liquid pipe side: 6.
[ II Restrictions ] (2) Size of the pipe that fits the main BC controller ports (E)P200 - (E)P900 models Branch joint (Model name:CMY-Y102S-G2) (Optional accessory) Connection: Brazed connection To outdoor unit BC controller (main) *1 Reducer (Standard supplied parts) Indoor Indoor Indoor *2 Junction pipe kit (Model name: CMY-R160-J1) (Optional accessory) A B Indoor Indoor Indoor P50 model or below P63-P80 models P100-P250 models 3* Maximum of 3 units per port Total capacity of P80 or below (A
[ II Restrictions ] (3) Size of the pipe that fits the sub BC controller ports Connection: Brazed connection To Main BC controller BC controller (sub) *1 Reducer (Standard supplied parts) Indoor Indoor Branch joint (Model name:CMY-Y102S-G2) (Optional accessory) *2 Junction pipe kit (Model name: CMY-R160-J1) (Optional accessory) A Indoor B Indoor P50 model or below P63-P80 models P100-P250 models Indoor Indoor 3* Maximum of 3 units per port Total capacity of P80 or below (All units connected to t
[ II Restrictions ] HWE10050 - 58 - GB
III Outdoor Unit Components [1] [2] [3] [4] [5] [6] HWE10050 Outdoor Unit Components and Refrigerant Circuit .......................................................... 61 Control Box of the Outdoor Unit....................................................................................... 66 Outdoor Unit Circuit Board............................................................................................... 67 BC Controller Components ...................................................................
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[ III Outdoor Unit Components ] III Outdoor Unit Components [1] Outdoor Unit Components and Refrigerant Circuit 1.
[ III Outdoor Unit Components ] (2) PURY-EP350, P450YJM-A Fan guard Fan Control Box Contactor box Heat exchanger Front panel Fin guard HWE10050 - 62 - GB
[ III Outdoor Unit Components ] 2.
[ III Outdoor Unit Components ] (2) PURY-EP250, EP300, P350, P400YJM-A Solenoid valve (SV2) Low pressure sensor (63LS) Check valve assembly (CV7a) High-pressure switch (63H1) 4-way valve (21S4a) High pressure sensor (63HS1) Solenoid valve (SV9) Accumulator (ACC) Check valve (CV5a) Compressor cover Solenoid valve block (SV4a, SV4b, SV4c, SV4d) Solenoid valve (SV5b) Solenoid valve (SV1a) Refrigerant service valve on the high pressure side (BV2) Check valve (CV6a) Compressor (COMP) Oil separator (
[ III Outdoor Unit Components ] (3) PURY-EP350, P450YJM-A Solenoid valve (SV4c) Check valve (CV3a) 4-way valve (21S4a) 4-way valve (21S4b) Check valve (CV7a) Check valve (CV5b) High-pressure switch (63H1) Low pressure check joint Low pressure sensor (63LS) High pressure sensor (63HS1) Solenoid valve (SV9) High pressure check joint Compressor cover Compressor Oil separator Solenoid valve (SV1a) Solenoid valve (SV5b) Check valve (CV7b) Accumulator Check valve (CV2b) Refrigerant service valve on t
[ III Outdoor Unit Components ] [2] Control Box of the Outdoor Unit Control box houses high-voltage parts. When opening or closing the front panel of the control box, do not let it come into contact with any of the internal components. Before inspecting the inside of the control box, turn off the power, keep the unit off for at least 10 minutes, and confirm that the voltage between FT-P and FT-N on INV Board has dropped to DC20V or less.
[ III Outdoor Unit Components ] [3] Outdoor Unit Circuit Board 1.
[ III Outdoor Unit Components ] 2.
[ III Outdoor Unit Components ] 3.
[ III Outdoor Unit Components ] 4.
[ III Outdoor Unit Components ] 5. Noise Filter CN5 Output (Rectified L2-N current) P N CN4 Output (Rectified L2-N current) P N CN2 Surge absorber circuit Surge absorber circuit Short circuit Short circuit Grounding F1,F2,F3,F4 Fuse 250VAC 6.
[ III Outdoor Unit Components ] [4] BC Controller Components 1.
[ III Outdoor Unit Components ] (3) Rear view LEV2 TH16 PS3 PS1 LEV3 TH11 LEV1 SVM2 Gas/Liquid separator Tube in tube heat exchanger SVM1 TH12 TH15 (4) Rear view Gas/Liquid separator PS1 LEV3 LEV1 PS3 SVM2 SVM2b SVM1b SVM1 Tube in tube heat exchanger TH11 HWE10050 TH12 TH15 - 73 - TH16 GB
[ III Outdoor Unit Components ] 2.
[ III Outdoor Unit Components ] [5] Control Box of the BC Controller 1.
[ III Outdoor Unit Components ] [6] BC Controller Circuit Board 1.
[ III Outdoor Unit Components ] 2. RELAY BOARD (RELAY 4 board) 3.
[ III Outdoor Unit Components ] HWE10050 - 78 - GB
IV Remote Controller [1] [2] [3] [4] HWE10050 Functions and Specifications of MA and ME Remote Controllers ................................... 81 Group Settings and Interlock Settings via the ME Remote Controller ............................. 82 Interlock Settings via the MA Remote Controller ............................................................. 86 Using the built-in Temperature Sensor on the Remote Controller ...................................
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[ IV Remote Controller ] IV Remote Controller [1] Functions and Specifications of MA and ME Remote Controllers There are two types of remote controllers: ME remote controller, which is connected on the indoor-outdoor transmission line, and MA remote controller, which is connected to each indoor unit. 1.
[ IV Remote Controller ] [2] Group Settings and Interlock Settings via the ME Remote Controller 1. Group settings/interlock settings Make the following settings to perform a group operation of units that are connected to different outdoor units or to manually set up the indoor/outdoor unit address. (A) Group settings...........Registration of the indoor units to be controlled with the remote controller, and search and deletion of registered information. (B) Interlock settings........
[ IV Remote Controller ] 9 Repeat steps 7 and 8 in the previous page to interlock all the indoor units in a group with the LOSSNAY unit. (C) To return to the normal display When all the group settings and interlock settings are made, take the following step to go back to the normal display. 10 Press and hold buttons A [FILTER] and B [ ] simultaneously for 2 seconds to go back to the window as shown in step 1 . To go back to the normal display, To search for an address, follow step 10 .
[ IV Remote Controller ] (A) To delete group settings (B) To delete interlock settings will be displayed in the room temperature display window. If deletion is successfully completed, - - will appear in the unit type display window. If the deletion fails, will appear in the unit type display window. In this case, repeat the steps above.
[ IV Remote Controller ] [Operation Procedures] 1. Press the [ON/OFF] button on the remote controller to bring the unit to a stop. The display will appear as shown in the previous page (Normal display). 2. Press buttons 1 [CHECK] and [ ] simultaneously for 2 seconds to go into the “Skip-Auto-Mode setting.” under the remote controller function selection mode. Press button 2 [SET TEMP. ( )] or 3 [SET TEMP. ( )] to go into the other four modes under the remote controller function selection mode.
[ IV Remote Controller ] [3] Interlock Settings via the MA Remote Controller 1. LOSSNAY interlock setting (Make this setting only when necessary.) (1) MA Remote Controller (PAR-21MAA) * When the upper controller is connected, make the setting using the upper controller. NOTE: When using LOSSNAY units in conjunction, interlock the addresses of all indoor units within the group and address of LOSSNAY units.
[ IV Remote Controller ] < 2. Search Procedures > 8 To search for the LOSSNAY unit that is interlocked with a particular indoor unit, enter the address of the indoor unit into the remote controller that is connected to it. 9 Press the [ MENU] button to search for the address of the LOSSNAY unit that is interlocked with the selected indoor unit.
[ IV Remote Controller ] HWE10050 - 88 - GB
V Electrical Wiring Diagram [1] Electrical Wiring Diagram of the Outdoor Unit ................................................................. 91 [2] Electrical Wiring Diagram of the BC Controller ................................................................ 93 [3] Electrical Wiring Diagram of Transmission Booster.......................................................
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HWE10050 - 91 - TH7 THHS Z24,25 TH3 TH4 TH5 TH6 TB7 TB1 TB3 SV9 SV5c SV2 SV4a,b,c,d SV5b 63HS1 63LS 72C CT12,22,3 CH11 DCL SV1a Symbol 21S4a 63H1 1 Explanation 4-way valve(Cooling/Heating switching) Pressure High pressure protection for the switch outdoor unit Discharge pressure Pressure sensor Low pressure Magnetic relay(inverter main circuit) Current sensor(AC) Crankcase heater(for heating the compressor) DC reactor Solenoid For opening/closing the bypass valve circuit under the O/S Discharge
HWE10050 - 92 - TH7 THHS Z24,25 SV4a,b,c,d SV5b SV5c SV9 TB1 TB3 TB7 TH3 TH4 TH5 TH6 63HS1 63LS 72C CT12,22,3 CH11 DCL SV1a Symbol 21S4a 21S4b 52F 63H1 Explanation Cooling/Heating switching 4-way valve Heat exchanger capacity control Magnetic contactor(FAN) High pressure protection for the Pressure switch outdoor unit Discharge pressure Pressure sensor Low pressure Magnetic relay(inverter main circuit) Current sensor(AC) Crankcase heater(for heating the compressor) DC reactor For opening/closing the b
HWE10050 - 93 - TH16 TH15 TH12 TH11 PS3 PS1 3 2 1 3 2 1 4 3 2 CN11 ON DSA 1 2 3 4 5 6 LEV1 1 2 3 4 5 6 LEV3 SW5 8 CN05 (Red) 1 SW4 8 CN07 (Yellow) OFF ON OFF 1 ZNR01 ZNR02 CN12 1 F01 250VAC 6.
HWE10050 - 94 - TH16 TH15 TH12 TH11 PS3 PS1 1 2 3 1 2 3 3 2 1 1 1 8 1 DSA ZNR01 5 TB01 L PE ZNR02 X6 CN11 LEV3 2 3 4 5 6 CN07 (Yellow) 4 3 2 1 ON OFF CN05 (Red) SW5 SW4 LEV1 2 3 4 5 6 1 1 8 CN12 1 N PE POWER SUPPLY ~ 220V-240V 50Hz/60Hz 3 F01 250VAC 6.
TH16 TH15 TH12 TH11 PS3 PS1 1 2 3 1 2 3 1 ON OFF ZNR01 3 ZNR02 CN38 1 CN11 1 2 3 4 5 6 LEV1 1 2 3 4 5 6 LEV3 SW5 8 CN05 (Red) ON OFF 1 CN07 (Yellow) 4 3 2 SW4 CN12 F01 250VAC 6.
- 96 - TH16 TH15 TH12 TH11 PS3 PS1 3 2 1 LEV1 LEV3 SW5 SW4 1 2 3 4 5 6 1 1 1 2 3 4 5 6 ON OFF ON OFF 1 2 1 CN02 8 8 SW2 SW1 10 CN05 (Red) CN11 CN10 CN13 (Red) CNP3 CN03 (Yellow) 3 2 1 CN07 (Yellow) 4 3 2 1 8 7 6 5 4 3 2 1 1 2 3 1 2 CNVCC1 CNP1 (Blue) (Black) 3 1 2 220V~240V CN12 ZNR02 1 3 5 F01 250VAC 6.
TH16 TH15 TH12 TH11 PS3 PS1 3 2 1 1 LEV2 LEV3 8 1 2 3 4 5 6 SW5 SW4 1 2 3 4 5 6 1 8 CN06 (Blue) ON OFF 1 CN07 (Yellow) 4 3 2 SW2 SW1 CN05 (Red) ZNR02 LEV1 1 2 3 4 5 6 CN12 1 3 F01 250VAC 6.
TH16 TH15 TH12 TH11 PS3 PS1 3 2 1 1 1 SW5 SW4 1 8 8 8 7 6 5 4 3 2 1 CNOUT1 - 98 - CN06 (Blue) 1 2 3 4 5 6 LEV2 LEV1 1 2 3 4 5 6 CN05 (Red) CN07 (Yellow) LEV3 4 3 2 1 8 CN12 1 3 F01 250VAC 6.3A F DSA ZNR01 CNOUT3 4 3 2 1 1 SW2 SW1 10 2 CN02 1 ON OFF ON OFF 2 CN03 (Yellow) 3 7 CN11 CN10 CN13 (Red) CNP3 CNVCC1 (Blue) 6 5 4 3 2 1 2 1 3 2 1 CNP1 (Black) 3 2 1 CONT.
HWE10050 - 99 - TH15 TH12 CONT.B 1 ON 1 4 3 2 1 CN11 LEV3 2 3 4 CN07 (Yellow) 5 OFF ON OFF 1 1 8 6 SW5 SW4 8 DSA ZNR01 1 ZNR02 CN12 F01 250VAC 6.
TH15 TH12 ON OFF 10 1 4 3 2 1 CN11 LEV3 1 2 3 4 5 6 CN07 (Yellow) ON OFF 1 1 SW5 SW4 8 8 ZNR01 ZNR02 CN12 F01 250VAC 6.
- 101 - M M M t° t° t° t° 3 2 1 3 2 1 3 2 1 3 2 1 2 1 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 4 3 2 1 8 7 CN05 (Red) CN06 (Blue) CN07 (Yellow) CN11 SW6 SW5 SW4 8 8 CN38 1 CNOUT1 LD1:CPU in operation CONT.B 7 X31 CN12 1 3 5 F01 250VAC 6.
- 102 - M t° t° CN07 (Yellow) CN12 1 U ZNR02 3 1 3 5 F01 250VAC 6.3A F DSA U ZNR01 CNOUT3 4 4 1 2 3 4 5 6 3 2 CN11 2 3 1 8 8 1 7 4 3 2 1 CNOUT1 LD1:CPU in operation 6 SW6 8 8 7 1 SW5 SW4 CONT.B 6 ON OFF ON OFF 1 8 SW2 SW1 1 5 CN10 CN13 (Red) ON OFF 1 10 CN38 5 4 3 2 1 Note:1.TB02 is transmission terminal block.Never connect power line to it.
[ V Electrical Wiring Diagram ] [3] Electrical Wiring Diagram of Transmission Booster Terminal block for power supply (TB1) 250V 5A L Red Red Red Red Red AC220 - 240V White White Black 1 Varistor 3 E Noise filter Green/Yellow U White White White White 2 4 Black Red Varistor U Green DSA Red Red Blue Grounding White Choke coil Red White Red 4 1 3 2 1 CN2 Stabilized power supply 2 3 Black Black CN1 Blue CN2 1 2 CN3 1 2 1 2 CN4 Electronic control board S White White Re
[ V Electrical Wiring Diagram ] HWE10050 - 104 - GB
VI Refrigerant Circuit [1] Refrigerant Circuit Diagram ........................................................................................... 107 [2] Principal Parts and Functions ........................................................................................
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[ VI Refrigerant Circuit ] VI Refrigerant Circuit [1] Refrigerant Circuit Diagram 1.
[ VI Refrigerant Circuit ] (3) PURY-P450YJM-A(-BS), PURY-EP350YJM-A(-BS) 21S4b 21S4a Solenoid valve block CV7b CV7a SV4a SV4b SV4d SV4c SV9 CP2 ST17 63HS1 TH7 63H1 CJ1 TH5 CP1 O/S CJ2 ST3 HEX TH6 SV5b SV1a 63LS TH4 CV8a CV2b CV9a CV3a CV2a CV4b ST1 CV6a COMP CV4a ST7 CV5a CV6b CV5b BV1 ST6 TH3 BV2 Acc SV5c HWE10050 - 108 - GB
[ VI Refrigerant Circuit ] (4) PURY-P500, P550, P600YSJM-A(-BS), PURY-P400, P450, P500YSJM-A1(-BS) PURY-EP400YSJM-A(-BS) 21S4a Solenoid valve block CV7a CJ1 SV4a SV4b SV4d SV2 ST17 63H1 SV9 CP2 63HS1 TH7 * CP1 O/S CJ2 ST3 TH6 TH5 SV1a 63LS TH4 CV8a CV9a CV10a * CV4a CV3a HEX SV5b CV5a ST1 CV6a BV1 TH3 COMP ST7 CV2a ST6 BV2 SV5c Acc 21S4a Solenoid valve block CV7a CJ1 SV4a SV4b SV4d SV2 ST17 63H1 SV9 CP2 63HS1 TH7 * CP1 O/S CJ2 ST3 TH6 TH5 SV1a 63LS TH4 CV8a C
[ VI Refrigerant Circuit ] (5) PURY-P650, P700YSJM-A(-BS), PURY-P600YSJM-A1(-BS) PURY-EP450, EP500YSJM-A(-BS) 21S4a Solenoid valve block CV7a CJ1 SV4a SV4b SV4d SV2 ST17 63H1 SV9 CP2 63HS1 TH7 * CP1 O/S CJ2 ST3 TH6 TH5 SV1a 63LS TH4 CV8a * CV4a CV3a HEX SV5b CV9a CV10a CV5a ST1 CV6a BV1 TH3 COMP ST7 CV2a ST6 BV2 SV5c Acc 21S4a Solenoid valve block CV7a CJ1 SV4a SV4b SV4c SV4d SV2 ST17 63H1 SV9 CP2 63HS1 TH7 CP1 * O/S CJ2 ST3 TH5 SV1a TH6 63LS TH4 CV8a CV3a CV
[ VI Refrigerant Circuit ] (6) PURY-P750, P800YSJM-A(-BS), PURY-P700YSJM-A1(-BS) PURY-EP550, EP600YSJM-A(-BS), PURY-EP500YSJM-A1(-BS) 21S4a Solenoid valve block CV7a CJ1 SV4a SV4b SV4c SV4d SV2 ST17 63H1 SV9 CP2 63HS1 TH7 CP1 * O/S CJ2 ST3 TH5 SV1a TH6 63LS TH4 HEX CV8a CV3a CV9a CV10a CV2a ST1 * COMP CV4a ST7 CV5a SV5b CV6a TH3 ST6 Acc BV2 SV5c 21S4a BV1 Solenoid valve block CV7a CJ1 SV4a SV4b SV4c SV4d SV2 ST17 63H1 SV9 CP2 63HS1 TH7 CP1 * O/S CJ2 ST3 TH5 SV1a
[ VI Refrigerant Circuit ] (7) PURY-P850YSJM-A(-BS), PURY-P800YSJM-A1(-BS), PURY-EP650YSJM-A(-BS) PURY-EP600YSJM-A1(-BS) 21S4a Solenoid valve block CV7a CJ1 SV4a SV4b SV4c SV4d SV2 ST17 63H1 SV9 CP2 63HS1 TH7 CP1 * O/S CJ2 ST3 TH5 SV1a TH6 63LS TH4 HEX CV8a CV3a CV9a CV10a CV2a CV5a SV5b ST1 * COMP CV4a ST7 CV6a BV1 TH3 ST6 Acc BV2 SV5c 21S4b 21S4a Solenoid valve block CV7b CV7a SV4a SV4b SV4d SV4c SV9 CP2 ST17 63HS1 TH7 63H1 CJ1 TH5 CP1 O/S CJ2 ST3 HEX TH6 SV5b
[ VI Refrigerant Circuit ] (8) PURY-P900YSJM-A(-BS), PURY-EP700YSJM-A(-BS) 21S4b 21S4a Solenoid valve block CV7b CV7a SV4a SV4b SV4d SV4c SV9 CP2 ST17 63HS1 TH7 63H1 CJ1 TH5 CP1 O/S CJ2 ST3 HEX TH6 SV5b SV1a 63LS TH4 CV8a CV2b CV9a CV3a CV4b CV2a ST1 CV6a COMP CV4a ST7 CV5a BV1 CV5b CV6b ST6 TH3 BV2 Acc SV5c 21S4b 21S4a Solenoid valve block CV7b CV7a SV4a SV4b SV4d SV4c SV9 CP2 ST17 63HS1 TH7 63H1 CJ1 TH5 CP1 O/S CJ2 ST3 HEX TH6 SV5b SV1a 63LS TH4 CV8a CV
[ VI Refrigerant Circuit ] 2.
[ VI Refrigerant Circuit ] (2) CMB-P108, P1013, P1016V-GA1 (main) Solenoid valve block TH15 Gas/Liquid separator LEV3 TH12 SVM2 HIC-B PS1 TH11 HIC-A PS3 LEV1 TH16 Check valve block LEV2 SVM1 (3) CMB-P104, P108V-GB1 (sub) Solenoid valve block TH12 CP TH15 LEV3 HIC-C Check valve block HWE10050 - 115 - GB
[ VI Refrigerant Circuit ] (4) CMB-P1016V-HA1 (main) SVA,SVB,SVC TH15 Gas/Liquid separator SVM2 LEV3 TH12 SVM2b HIC-B PS3 PS1 TH11 LEV1 TH16 HIC-A SVM1 SVM1b (5) CMB-P1016V-HB1 (sub) Solenoid valve block TH12 CP TH15 LEV3 HIC-C Check valve block HWE10050 - 116 - GB
[ VI Refrigerant Circuit ] [2] Principal Parts and Functions 1. Outdoor unit Part name Symbols (functions) Compressor MC1 (Comp1) High pressure sensor 63HS1 Notes Usage Adjusts the amount of circulating refrigerant by adjusting the operating frequency based on the operating pressure data 1) Detects high pressure 2) Regulates frequency and provides high-pressure protection 200 - 250 models Low-pressure shell scroll compressor Wirewound resistance 20°C[68°F] : 0.
[ VI Refrigerant Circuit ] Part name Symbols (functions) Notes Usage Controls defrosting during heating operation Thermis- TH3 tor (Pipe temperature) TH7 (Outdoor temperature) 1) Detects outdoor air temperature 2) Controls fan operation TH5 Fan operated on the 63LS and TH5 values.
[ VI Refrigerant Circuit ] 2. Indoor Unit Part Name Symbol (functions) Linear LEV expansion valve Notes Usage Specification Check method 1) Adjusts superheat at the indoor heat exchanger outlet during cooling 2) Adjusts subcool at the heat exchanger outlet of the indoor unit during cooling DC12V Opening of stepping motor driving valve 0-(1400) pulses Refer to the section "Continuity Test with a Tester". Continuity between white, red, and orange. Continuity between yellow, brown, and blue.
[ VI Refrigerant Circuit ] 3. BC controller (1) G1 type Part name Pressure sensor Symbols (functions) PS1 (High pressure side) PS3 (Intermediate pressure) Thermistor Solenoid valve Specifications 1) Detects high pressure 2) LEV control PS1 123 1) Detects intermediate pressure 2) LEV control Connector Check method Pressure 0~4.15 MPa [601psi] Vout 0.5~3.5V 0.071V/0.098 MPa [14psi] Pressure [MPa] =1.38 x Vout [V]-0.69 Pressure [psi] =(1.38 x Vout [V] - 0.
[ VI Refrigerant Circuit ] (2) GA1 type Part name Pressure sensor Symbols (functions) PS1 (High pressure side) PS3 (Intermediate pressure) Thermistor Solenoid valve Usage 1) Detects high pressure 2) LEV control PS1 123 1) Detects intermediate pressure 2) LEV control Connector Check method Pressure 0~4.15 MPa [601psi] Vout 0.5~3.5V 0.071V/0.098 MPa [14psi] Pressure [MPa] =1.38 x Vout [V]-0.69 Pressure [psi] =(1.38 x Vout [V] - 0.
[ VI Refrigerant Circuit ] (3) GB1 type Part name Thermistor Solenoid valve LEV HWE10050 Symbols (functions) Part code Usage TH12 (Bypass outlet temperature) LEV control (Superheat) TH15 (Bypass inlet temperature) LEV control (Superheat) SV A Provides refrigerant to indoor unit in cooling operation SV B Provides refrigerant to indoor unit in heating operation SV C Provides refrigerant to indoor unit in cooling operation LEV3 Pressure differential control Specifications R 0 = 15k R 0/80 =
[ VI Refrigerant Circuit ] (4) HA1 type Part name Pressure sensor Symbols (functions) PS1 (High pressure side) PS3 (Intermediate pressure) Thermistor Solenoid valve Usage 1) Detects high pressure 2) LEV control PS1 123 1) Detects intermediate pressure 2) LEV control Connector Check method Pressure 0~4.15 MPa [601psi] Vout 0.5~3.5V 0.071V/0.098 MPa [14psi] Pressure [MPa] =1.38 x Vout [V]-0.69 Pressure [psi] =(1.38 x Vout [V] - 0.
[ VI Refrigerant Circuit ] (5) HB1 type Part name Thermistor Solenoid valve LEV HWE10050 Symbols (functions) Part code Usage TH12 (Bypass outlet temperature) LEV control (Superheat) TH15 (Bypass inlet temperature) LEV control (Superheat) SV A Provides refrigerant to indoor unit in cooling operation SV B Provides refrigerant to indoor unit in heating operation SV C Provides refrigerant to indoor unit in cooling operation LEV3 Pressure differential control Specifications R 0 = 15k R 0/80 =
VII Control [1] [2] [3] [4] HWE10050 Functions and Factory Settings of the Dipswitches ....................................................... 127 Controlling the Outdoor Unit .......................................................................................... 133 Controlling BC Controller ............................................................................................... 147 Operation Flow Chart.............................................................................................
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[ VII Control ] VII Control [1] Functions and Factory Settings of the Dipswitches 1. Outdoor unit (1) Control board Function according to switch setting Switch Switch setting timing Function OFF ON OFF ON Units that require switch setting Note.2 OC OS C C C C B B A - SWU 1-2 Unit address setting Set to 00 or 51-100 with the dial switch Before power on SW1 1-10 For self-diagnosis/ operation monitoring Refer to the LED monitor display on the outdoor unit board.
[ VII Control ] Switch Function Function according to switch setting OFF OFF ON 1 Test run mode: enabled/disabled SW3-2 disabled SW3-2 enabled Anytime after power on 2 Test run mode: ON/ OFF Stops all ICs Sends a test-run signal to all IC After power on and when SW3-1 is on.
[ VII Control ] Function according to switch setting Switch Switch setting timing Function OFF ON OFF ON OC OS C C A - Before being energized B B Anytime after power on A - 1 2 3 4 Model selection See the table below (Note 4) Before being energized 5 Low-noise mode selection Capacity priority mode(Note 3) Before being energized 6 7 Model selection See the table below (Note 4).
[ VII Control ] 2.
[ VII Control ] (2) Address switch Actual indoor unit address setting varies in different systems. Refer to the installation manual for the outdoor unit for details on how to make the address setting. Each address is set with a combination of the settings for the 10's digit and 1's digit. (Example) When setting the address to "3", set the 1's digit to 3, and the 10's digit to 0. When setting the address to "25", set the 1's digit to 5, and the 10's digit to 2. 3.
[ VII Control ] (2) ME remote controller (PAR-F27MEA) Set the address of the remote controller with the rotary switch. 4 56 78 9 78 9 4 56 10's digit 1's digit (left) (right) 01 23 23 78 9 23 01 01 4 56 01 23 78 9 Rotary switch 45 6 Remote controller unit Example: In case of address 108 Address setting range Setting method Main remote controller 101-150 Add 100 to the smallest address of all the indoor units in the same group.
[ VII Control ] [2] Controlling the Outdoor Unit Outline of Control Method -1- Outline of Control Method The outdoor units are designated as OC and OS in the order of capacity from large to small (if two or more units have the same capacity, in the order of address from small to large). The setting of outdoor unit can be verified by using the self-diagnosis switch (SW1). SW1 1 2 3 4 5 6 7 8 9 10 ON Display The unit is designated as the OC: “oc” appears on the display.
[ VII Control ] Bypass Control -5- Bypass Control Bypass solenoid valves (SV1a), which bypass the high- and low- pressure sides, perform the following functions. (1) Bypass solenoid valve (SV1a) (ON = Open) SV1a Operation ON OFF When each indoor unit compressor startup ON for 4 minutes. After the restoration of thermo or 3 minutes after restart ON for 4 minutes. During cooling or heating operation with the compressor stopped Always ON. Exception: OFF when 63HS1-63LS is 0.
[ VII Control ] (5) Bypass solenoid valve (SV5c) (ON = Open) SV5c Operation ON While the unit is stopped OFF Always ON Cooling mode When one or more of the following valves is turned OFF: SV4a through SV4c. Defrost mode When the condition on the left is not met Always OFF on the P200 - P400 through EP200 - EP300 models and always ON on the P450 and EP350 models.
[ VII Control ] Defrost Operation Control -7- Defrost Operation Control (1) Starting the defrost operation The defrost cycle will start when all of the three conditions (outside temperature, cumulative compressor operation time, and pipe temperature) under , , or are met.
[ VII Control ] (2) Defrost operation Outdoou unit Compressor frequency Model Compressor frequency P200 - P300, EP200 models 65 Hz P350, P400, EP250, EP300 models 103 Hz P450, EP350 models 103 Hz Outdoor unit fan Stopped SV1a ON (open) SV2 P200 - P400, EP200 - EP300 models: ON (open) P450, EP350 models: N/A SV5b ON (close) SV5c P200 - P400, EP200 - EP300 models: ON (closed) P450, EP350 models: ON (open) 21S4a, 21S4b BC controller OFF SV9 OFF (closed) LEV1 G1 type: 4000, GA1 type: 6
[ VII Control ] Refrigerant Recovery Control -8- Refrigerant Recovery Control Refrigerant recovery is performed for each BC port during heating operation to prevent the refrigerant from accumulating inside the units that are stopped (in the fan mode), in the cooling mode, or in the heating Thermo-OFF mode. It is also performed during cooling operation to prevent an excessive amount of refrigerant from accumulating in the outdoor heat exchanger.
[ VII Control ] (3) Outdoor unit heat exchanger capacity control patterns Model P200 - P300 through EP200 models Operation mode SV4a SV4b SV4c SV4d SV5c 1 OFF OFF - ON ON 2 OFF OFF - OFF ON 3 OFF ON - OFF ON 4 ON OFF - OFF ON 5 ON ON - OFF OFF 1 ON ON - OFF OFF Heatingmain 1 ON ON - ON OFF 2 ON ON - OFF OFF Defrost 1 ON ON - OFF OFF Coolingonly Coolingmain 1 OFF OFF OFF ON ON 2 OFF OFF OFF OFF ON 3 OFF OFF ON OFF ON 4 OFF ON
[ VII Control ] Control at Initial Start-up -10- Control at Initial Start-up When started up for the first time before 12 hours have elapsed after power on, the unit goes into the initial startup mode. At the completion of the initial operation mode on the OC and OS, they will go into the normal control mode. 1. Flowchart of initial operation (1) Single-outdoor-unit system Initial startup mode starts. 50 F 60Hz Completed in the integrated operation time of 35 minutes.
[ VII Control ] Emergency Operation Mode -11- Emergency Operation Mode 1. Problems with the outdoor unit Systems with two outdoor units have a mode that allows one of the outdoor units to perform a backup operation when the other outdoor unit in the system malfunctions. This mode can be started by performing an error reset via the remote controller.
[ VII Control ] (2) Ending the emergency operation 1) End conditions When one of the following conditions is met, emergency operation stops, and the unit makes an error stop. When the integrated operation time of compressor in cooling mode has reached four hours. When the integrated operation time of compressor in heating mode has reached two hours. When an error is detected that does not permit the unit to perform an emergency operation.
[ VII Control ] Control Method -12- Control Method Control method The control system configuration for the PURY models is shown in the chart below.
[ VII Control ] Cooling/heating Circuit Control and General Function of System Equipment -13- Cooling/heating Circuit Control and General Function of System Equipment Operation status Gas Two-phase Liquid Schematic diagram of refrigerant circuit High-pressure gas 4-way valve Check valve Selector valve L M A O Lowpressure pipe Heat exchanger Pressure Low-pressure two-phase L Low-pressure gas M Gas M Heat exchanger Fan L L M Cooling only Schematic diagram of refrigerating cycle A Liq
[ VII Control ] Operation Mode -14- Operation Mode (1) Indoor unit operation mode The operation mode can be selected from the following 6 modes using the remote controller. 1 Cooling mode 2 Heating mode 3 Dry mode 4 Automatic cooling/heating mode 5 Fan mode 6 Stopping mode (2) Outdoor unit operation mode 1 Cooling only mode All indoor units in operation are in cooling mode. 2 Heating only mode All indoor units in operation are in heating mode.
[ VII Control ] DEMAND Control -15- DEMAND Control Cooling/heating operation can be prohibited (Thermo-OFF) by an external input to the indoor units. When DIP SW4-4 is set to ON, the 4-step DEMAND control is enabled. Eight-step demand control is possible in the system with two outdoor units. Refer to Chapter II [3] 2.(7) "Various types of control using input-output signal connector on the outdoor unit (various connection options)" for details.
[ VII Control ] [3] Controlling BC Controller 1. Control of SV A, SV B, and SV C SV A, SV B, and SV C turn on or off depending on the operation mode of the branch. Mode Port Cooling Heating Stopped Defrost SV A ON OFF OFF OFF SV B OFF ON OFF OFF SV C ON OFF OFF OFF 2. Control of SVM1 snd SVMb SVM turns on or off depending on the operation mode.
[ VII Control ] [4] Operation Flow Chart 1. Mode determination flowchart (1) Indoor unit (cooling, heating, dry, fan mode) Start Normal operation Breaker turned on Error Stop NO YES 1 Operation SW turned on NO YES *Note 1 1. Protection function self-holding cancelled. 2. Indoor unit LEV fully closed. Remote controller display lit off *Note 2 NO Error mode YES YES Auxiliary heater ON NO 1. Auxiliary heater OFF FAN stop 2.
[ VII Control ] (2) Outdoor unit (cooling only, heating only, cooling main and heating main modes) Start Normal operation Breaker turned on Error NO Unit in the stopped state YES "HO" / "PLEASE WAIT" blinks on the remote controller *Note 1 NO Indoor units registered to the remote controller YES 2 NO Operation command Protection function self-holding cancelled. YES fan Operation mode Cooling only, Heating only Mixture of units in cooling and heating *Note 2 1. 52C1 4-way valve OFF 2.
[ VII Control ] (3) BC controller (cooling only, heating only, cooling main and heating main modes) Start Breaker turned on Normal operation Error NO Unit in the stopped state YES 3 NO Operation command YES Protection function self-holding cancelled. 1. Determination of operation mode (Cooling only, Heating only, Mixture of units in cooling and heating) 2.
[ VII Control ] 2. Operations in each mode (1) Cooling operation Cooling operation Normal operation During test run mode 4-way valve OFF Indoor unit fan operation Test run mode ON Unit in the stopped state *Note 1 YES NO NO Thermostat ON YES YES 3-minute restart prevention NO 1. Inverter output 0Hz 2. Indoor unit LEV, Oil return LEV fully closed 3. Solenoid valves OFF 4. Outdoor unit fan stop 5. BC controller solenoid valves OFF 6. BC controller LEV fully closed 1.
[ VII Control ] (2) Heating operation Normal operation Heating operation Defrost operation *Note 1,2 Unit in the stopped state Defrost operation During test run mode NO 4-way valve ON Test run mode ON 4-way valve OFF YES NO NO YES Thermostat ON YES 3-minute restart prevention *Note 1,2 NO Stopping the NO 1. Indoor unit fan operation at Very Low speed 2. Inverter output 0Hz 3. Indoor unit LEV fully open 4. Solenoid valve OFF 5. Outdoor unit fan stop 6. BC controller solenoid valve control 7.
[ VII Control ] (3) Dry operation Dry operation Normal operation Thermostat ON 4-way valve OFF Test run mode ON Unit in the stopped state YES *Note 2 NO Thermostat ON NO Suction temperature 18 C[64 F] YES *Note 1 1. Indoor unit fan stop 2. Inverter output 0Hz 3. Indoor unit LEV fully closed. 4. Solenoid valve OFF 5. Outdoor unit fan stop 6. BC controller Solenoid valve OFF 7. BC controller LEV fully closed 1. Outdoor unit (compressor) intermittent operation 2.
[ VII Control ] HWE10050 - 154 - GB
VIII Test Run Mode [1] [2] [3] [4] [5] [6] [7] HWE10050 Items to be checked before a Test Run ......................................................................... 157 Test Run Method ........................................................................................................... 158 Operating Characteristic and Refrigerant Amount ......................................................... 159 Adjusting the Refrigerant Amount ...................................................................
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[ VIII Test Run Mode ] VIII Test Run Mode [1] Items to be checked before a Test Run (1) Check for refrigerant leak and loose cables and connectors. (2) Measure the insulation resistance between the power supply terminal block and the ground with a 500V megger and make sure it reads at least 1.0Mohm. Do not operate the unit if the insulation resistance is below 1.0Mohm. Do not apply megger voltage to the terminal block for transmission line. Doing so will damage the controller board.
[ VIII Test Run Mode ] [2] Test Run Method The figure shows an MA remote controller (PAR-21MAA). ON/OFF button Set Temperature buttons Down Fan Speed button Up TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE FUNCTION FILTER FC FC WEEKLY SIMPLE AUTO OFF ONLY1Hr. Operation Mode button TEMP.
[ VIII Test Run Mode ] [3] Operating Characteristic and Refrigerant Amount It is important to have a clear understanding of the characteristics of refrigerant and the operating characteristics of air conditioners before attempting to adjust the refrigerant amount in a given system. 1. Operating characteristic and refrigerant amount The following table shows items of particular importance.
[ VIII Test Run Mode ] 3. Amount of refrigerant to be added The amount of refrigerant that is shown in the table below is factory-charged to the outdoor units. The amount necessary for extended pipe (field piping) is not included and must be added on site. Outdoor unit model P200 P250 P300 P350 P400 P450 Amount of pre-charged refrigerant in the outdoor unit (kg) 9.5 9.5 9.5 11.8 11.8 11.
[ VIII Test Run Mode ] (2) Example Outdoor unit 1 Outdoor unit 2 h4 Branch joint kit 5 F G BC controller(HA1) H H′ h1 BC controller(HB1) D h3 h2 BC controller(HB1) E B Junction pipe kit a (CMY-R160-J1) b c (Optional accessory) 1 e C Branch joint (CMY-Y102S-G2) Reducer (P20 - P50 models) (Supplied with the BC Controller) h1 Indoor Branch joint (CMY-Y202-G2) (CMY-Y102L-G2) (CMY-Y102S-G2) A 2 3 Indoor Indoor (P15 - P80) (P100 - P250) d f h1 4 Indoor Indoor Maximum of 3 un
[ VIII Test Run Mode ] [5] Refrigerant Amount Adjust Mode 1. Procedures Follow the procedures below to add or extract refrigerant as necessary depending on the operation mode. When the function switch (SW4-3) on the main board on the outdoor unit (OC only) is turned to ON, the unit goes into the refrigerant amount adjust mode, and the following sequence is followed. SW4-3 on the OS is invalid, and the unit will not go into the refrigerant amount adjust mode.
[ VIII Test Run Mode ] Start Turn on SW4-3 on the OC. YES NO Operation of the Refrigerant Amount Adjust Mode Put all indoor units in the test run mode and run the units in cooling mode. When the unit is the refrigerant amount adjust mode, the LEV on the indoor unit does not open as fully as it normally does during cooling operation to secure subcooling.
[ VIII Test Run Mode ] [6] The following symptoms are normal. Symptoms Remote controller display The indoor unit does not start after starting cooling (heating) operation. "Cooling (heating)" icon blinks on the display. The auto vane adjusts its position by itself. Normal display Cause The unit cannot perform a heating (cooling) operation when other indoor units are performing a cooling (heating) operation.
[ VIII Test Run Mode ] [7] Standard Operation Data (Reference Data) 1. Single unit (Standard) (1) Cooling only operation Outdoor unit model Operation Model name of BC controller Ambient temperature PURY-P200YJM-A PURY-P250YJM-A CMB-P104V-G1 CMB-P104V-G1 27°C/ 19°C 27°C/ 19°C [81°F/ 66°F] [81°F/ 66°F] 35°C/ - 35°C/ - [95°F/ -] [95°F/ -] Indoor DB/WB Outdoor No. of connected units 2 2 2 2 100/100 125/125 Hi Hi Unit No.
[ VIII Test Run Mode ] Outdoor unit model Operation Model name of BC controller Ambient temperature PURY-P300YJM-A PURY-P350YJM-A CMB-P104V-G1 CMB-P104V-G1 27°C/ 19°C 27°C/ 19°C [81°F/ 66°F] [81°F/ 66°F] 35°C/ - 35°C/ - [95°F/ -] [95°F/ -] Indoor DB/WB Outdoor No. of connected units 3 3 3 3 100/100/100 100/125/125 Hi Hi Unit No.
[ VIII Test Run Mode ] Outdoor unit model Operation Model name of BC controller Ambient temperature PURY-P400YJM-A PURY-P450YJM-A CMB-P108V-GA1 CMB-P108V-GA1 27°C/ 19°C 27°C/ 19°C [81°F/ 66°F] [81°F/ 66°F] 35°C/ - 35°C/ - [95°F/ -] [95°F/ -] Indoor DB/WB Outdoor No. of connected units 4 4 4 4 100/100/100/100 100/100/125/125 Hi Hi Unit No.
[ VIII Test Run Mode ] (2) Heating only operation Outdoor unit model Operation Model name of BC controller Ambient temperature PURY-P200YJM-A PURY-P250YJM-A CMB-P104V-G1 CMB-P104V-G1 20°C/ - 20°C/ - [68°F/ -] [68°F/ -] Indoor DB/WB 7°C/ 6°C 7°C/ 6°C [45°F/ 43°F] [45°F/ 43°F] 2 2 2 2 100/100 125/125 Hi Hi Outdoor No. of connected units Unit No. of units in operation Operating conditions Indoor unit Model Fan speed 5 [17] 5 [17] 10 [33] 10 [33] 25 [82] 25 [82] kg [lbs-oz] 16.
[ VIII Test Run Mode ] Outdoor unit model Operation Model name of BC controller Ambient temperature PURY-P300YJM-A PURY-P350YJM-A CMB-P104V-G1 CMB-P104V-G1 20°C/ - 20°C/ - [68°F/ -] [68°F/ -] Indoor DB/WB 7°C/ 6°C 7°C/ 6°C [45°F/ 43°F] [45°F/ 43°F] 3 3 3 3 100/100/100 100/125/125 Hi Hi Outdoor No. of connected units Unit No.
[ VIII Test Run Mode ] Outdoor unit model Operation Model name of BC controller Ambient temperature PURY-P400YJM-A PURY-P450YJM-A CMB-P108V-GA1 CMB-P108V-GA1 20°C/ - 20°C/ - [68°F/ -] [68°F/ -] Indoor DB/WB 7°C/ 6°C 7°C/ 6°C [45°F/ 43°F] [45°F/ 43°F] 4 4 4 4 100/100/100/100 100/100/125/125 Hi Hi Outdoor No. of connected units Unit No.
[ VIII Test Run Mode ] 2. 2-unit combination (Standard) (1) Cooling only operation Outdoor unit model Operation PURY-P400YSJM-A1 PURY-P200YJM-A Model name of BC controller PURY-P200YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 4 Unit No.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P450YSJM-A1 PURY-P250YJM-A Model name of BC controller PURY-P200YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 4 Unit No. of units in operation Operating conditions 4 Indoor unit Model 100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 30.1 [67] Electric current A 13.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P500YSJM-A PURY-P250YJM-A Model name of BC controller PURY-P250YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 5 Unit No. of units in operation Operating conditions 5 Indoor unit Model 100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 31.2 [69] Electric current A 15.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P500YSJM-A1 PURY-P300YJM-A Model name of BC controller PURY-P200YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 5 Unit No. of units in operation Operating conditions 5 Indoor unit Model 100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 31.2 [69] Electric current A 15.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P550YSJM-A PURY-P300YJM-A Model name of BC controller PURY-P250YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 5 Unit No. of units in operation Operating conditions 5 Indoor unit Model 100/100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 33.8 [75] Electric current A 18.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P600YSJM-A PURY-P300YJM-A Model name of BC controller PURY-P300YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 6 Unit No. of units in operation Operating conditions 6 Indoor unit Model 100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 34.4 [76] Electric current A 20.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P600YSJM-A1 PURY-P350YJM-A Model name of BC controller PURY-P250YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 6 Unit No. of units in operation Operating conditions 6 Indoor unit Model 100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 36.7 [81] Electric current A 20.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P650YSJM-A PURY-P350YJM-A Model name of BC controller PURY-P300YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 6 Unit No. of units in operation Operating conditions 6 Indoor unit Model 100/100/100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 37.7 [84] Electric current A 22.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P700YSJM-A PURY-P400YJM-A Model name of BC controller PURY-P300YJM-A CMB-P1016V-HA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 7 Unit No. of units in operation Operating conditions 7 Indoor unit Model 100/100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 38.3 [85] Electric current A 25.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P700YSJM-A1 PURY-P350YJM-A Model name of BC controller PURY-P350YJM-A CMB-P1016V-HA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 7 Unit No. of units in operation Operating conditions 7 Indoor unit Model 100/100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 40.6 [90] Electric current A 24.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P750YSJM-A PURY-P400YJM-A Model name of BC controller PURY-P350YJM-A CMB-P1016V-HA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 7 Unit No. of units in operation Operating conditions 7 Indoor unit Model 100/100/100/100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 42.6 [94] Electric current A 27.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P800YSJM-A PURY-P400YJM-A Model name of BC controller PURY-P400YJM-A CMB-P1016V-HA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 8 Unit No. of units in operation Operating conditions 8 Indoor unit Model 100/100/100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 43.2 [96] Electric current A 29.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P800YSJM-A1 PURY-P450YJM-A Model name of BC controller PURY-P350YJM-A CMB-P1016V-HA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 8 Unit No. of units in operation Operating conditions 8 Indoor unit Model 100/100/100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 43.2 [96] Electric current A 28.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P850YSJM-A PURY-P450YJM-A Model name of BC controller PURY-P400YJM-A CMB-P1016V-HA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 8 Unit No. of units in operation Operating conditions 8 Indoor unit Model 100/100/100/100/100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 44.2 [98] Electric current A 30.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P900YSJM-A PURY-P450YJM-A Model name of BC controller PURY-P450YJM-A CMB-P1016V-HA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 9 Unit No. of units in operation Operating conditions 9 Indoor unit Model 100/100/100/100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 45.8 [101] Electric current A 31.
[ VIII Test Run Mode ] (2) Heating only operation Outdoor unit model Operation PURY-P400YSJM-A1 PURY-P200YJM-A Model name of BC controller PURY-P200YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 4 Unit No. of units in operation Operating conditions 4 Indoor unit Model 100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 30.1 [67] Electric current A 12.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P450YSJM-A1 PURY-P250YJM-A Model name of BC controller PURY-P200YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 4 Unit No. of units in operation Operating conditions 4 Indoor unit Model 100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 30.1 [67] Electric current A 14.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P500YSJM-A PURY-P250YJM-A Model name of BC controller PURY-P250YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 5 Unit No. of units in operation Operating conditions 5 Indoor unit Model 100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 31.2 [69] Electric current A 15.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P500YSJM-A1 PURY-P300YJM-A Model name of BC controller PURY-P200YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 5 Unit No. of units in operation Operating conditions 5 Indoor unit Model 100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 31.2 [69] Electric current A 15.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P550YSJM-A PURY-P300YJM-A Model name of BC controller PURY-P250YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 5 Unit No. of units in operation Operating conditions 5 Indoor unit Model 100/100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 33.8 [75] Electric current A 17.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P600YSJM-A PURY-P300YJM-A Model name of BC controller PURY-P300YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 6 Unit No. of units in operation Operating conditions 6 Indoor unit Model 100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 34.4 [76] Electric current A 20.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P600YSJM-A1 PURY-P350YJM-A Model name of BC controller PURY-P250YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 6 Unit No. of units in operation Operating conditions 6 Indoor unit Model 100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 36.7 [81] Electric current A 19.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P650YSJM-A PURY-P350YJM-A Model name of BC controller PURY-P300YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 6 Unit No. of units in operation Operating conditions 6 Indoor unit Model 100/100/100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 37.7 [84] Electric current A 21.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P700YSJM-A PURY-P400YJM-A Model name of BC controller PURY-P300YJM-A CMB-P1016V-HA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 7 Unit No. of units in operation Operating conditions 7 Indoor unit Model 100/100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 38.3 [85] Electric current A 23.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P700YSJM-A1 PURY-P350YJM-A Model name of BC controller PURY-P350YJM-A CMB-P1016V-HA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 7 Unit No. of units in operation Operating conditions 7 Indoor unit Model 100/100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 40.6 [90] Electric current A 22.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P750YSJM-A PURY-P400YJM-A Model name of BC controller PURY-P350YJM-A CMB-P1016V-HA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 7 Unit No. of units in operation Operating conditions 7 Indoor unit Model 100/100/100/100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 42.6 [94] Electric current A 25.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P800YSJM-A PURY-P400YJM-A Model name of BC controller PURY-P400YJM-A CMB-P1016V-HA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 8 Unit No. of units in operation Operating conditions 8 Indoor unit Model 100/100/100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 43.2 [96] Electric current A 27.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P800YSJM-A1 PURY-P450YJM-A Model name of BC controller PURY-P350YJM-A CMB-P1016V-HA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 8 Unit No. of units in operation Operating conditions 8 Indoor unit Model 100/100/100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 43.2 [96] Electric current A 27.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P850YSJM-A PURY-P450YJM-A Model name of BC controller PURY-P400YJM-A CMB-P1016V-HA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 8 Unit No. of units in operation Operating conditions 8 Indoor unit Model 100/100/100/100/100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 44.2 [98] Electric current A 29.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-P900YSJM-A PURY-P450YJM-A Model name of BC controller PURY-P450YJM-A CMB-P1016V-HA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 9 Unit No. of units in operation Operating conditions 9 Indoor unit Model 100/100/100/100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 45.8 [101] Electric current A 31.
[ VIII Test Run Mode ] 3. Single unit (High-COP) (1) Cooling only operation Outdoor unit model Operation Model name of BC controller Ambient temperature PURY-EP200YJM-A PURY-EP250YJM-A CMB-P104V-G1 CMB-P104V-G1 27°C/ 19°C 27°C/ 19°C [81°F/ 66°F] [81°F/ 66°F] 35°C/ - 35°C/ - [95°F/ -] [95°F/ -] Indoor DB/WB Outdoor No. of connected units 2 2 2 2 100/100 125/125 Hi Hi Unit No.
[ VIII Test Run Mode ] Outdoor unit model Operation Model name of BC controller Ambient temperature PURY-EP300YJM-A PURY-EP350YJM-A CMB-P104V-G1 CMB-P104V-G1 27°C/ 19°C 27°C/ 19°C [81°F/ 66°F] [81°F/ 66°F] 35°C/ - 35°C/ - [95°F/ -] [95°F/ -] Indoor DB/WB Outdoor No. of connected units 3 3 3 3 100/100/100 100/125/125 Hi Hi Unit No.
[ VIII Test Run Mode ] (2) Heating only operation Outdoor unit model Operation Model name of BC controller Ambient temperature PURY-EP200YJM-A PURY-EP250YJM-A CMB-P104V-G1 CMB-P104V-G1 20°C/ - 20°C/ - [68°F/ -] [68°F/ -] Indoor DB/WB 7°C/ 6°C 7°C/ 6°C [45°F/ 43°F] [45°F/ 43°F] 2 2 2 2 100/100 125/125 Hi Hi Outdoor No. of connected units Unit No. of units in operation Operating conditions Indoor unit Model Fan speed 5 [17] 5 [17] 10 [33] 10 [33] 25 [82] 25 [82] kg [lbs-oz] 16.
[ VIII Test Run Mode ] Outdoor unit model Operation Model name of BC controller Ambient temperature PURY-EP300YJM-A PURY-EP350YJM-A CMB-P104V-G1 CMB-P104V-G1 20°C/ - 20°C/ - [68°F/ -] [68°F/ -] Indoor DB/WB 7°C/ 6°C 7°C/ 6°C [45°F/ 43°F] [45°F/ 43°F] 3 3 3 3 100/100/100 100/125/125 Hi Hi Outdoor No. of connected units Unit No.
[ VIII Test Run Mode ] 4. 2-unit combination (High-COP) (1) Cooling only operation Outdoor unit model Operation PURY-EP400YSJM-A PURY-EP200YJM-A Model name of BC controller PURY-EP200YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 4 Unit No.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP450YSJM-A PURY-EP250YJM-A Model name of BC controller PURY-EP200YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 4 Unit No. of units in operation Operating conditions 4 Indoor unit Model 100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 32.4 [72] Electric current A 12.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP500YSJM-A PURY-EP300YJM-A Model name of BC controller PURY-EP200YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 5 Unit No. of units in operation Operating conditions 5 Indoor unit Model 100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 33.5 [74] Electric current A 14.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP500YSJM-A1 PURY-EP250YJM-A Model name of BC controller PURY-EP250YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 5 Unit No. of units in operation Operating conditions 5 Indoor unit Model 100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 35.8 [79] Electric current A 14.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP550YSJM-A PURY-EP300YJM-A Model name of BC controller PURY-EP250YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 5 Unit No. of units in operation Operating conditions 5 Indoor unit Model 100/100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 38.4 [85] Electric current A 16.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP600YSJM-A PURY-EP300YJM-A Model name of BC controller PURY-EP300YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 6 Unit No. of units in operation Operating conditions 6 Indoor unit Model 100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 39.0 [86] Electric current A 17.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP600YSJM-A1 PURY-EP350YJM-A Model name of BC controller PURY-EP250YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 6 Unit No. of units in operation Operating conditions 6 Indoor unit Model 100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 39.0 [86] Electric current A 18.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP650YSJM-A PURY-EP350YJM-A Model name of BC controller PURY-EP300YJM-A CMB-P108V-GA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 6 Unit No. of units in operation Operating conditions 6 Indoor unit Model 100/100/100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 40.0 [89] Electric current A 20.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP700YSJM-A PURY-EP350YJM-A Model name of BC controller PURY-EP350YJM-A CMB-P1016V-HA1 27°C/ 19°C Ambient temperature Indoor [81°F/ 66°F] DB/WB 35°C/ Outdoor [95°F/ -] No. of connected units 7 Unit No. of units in operation Operating conditions 7 Indoor unit Model 100/100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 40.6 [90] Electric current A 22.
[ VIII Test Run Mode ] (2) Heating only operation Outdoor unit model Operation PURY-EP400YSJM-A PURY-EP200YJM-A Model name of BC controller PURY-EP200YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 4 Unit No. of units in operation Operating conditions 4 Indoor unit Model 100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 30.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP450YSJM-A PURY-EP250YJM-A Model name of BC controller PURY-EP200YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 4 Unit No. of units in operation Operating conditions 4 Indoor unit Model 100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 32.4 [72] Electric current A 13.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP500YSJM-A PURY-EP300YJM-A Model name of BC controller PURY-EP200YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 5 Unit No. of units in operation Operating conditions 5 Indoor unit Model 100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 33.5 [74] Electric current A 15.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP500YSJM-A1 PURY-EP250YJM-A Model name of BC controller PURY-EP250YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 5 Unit No. of units in operation Operating conditions 5 Indoor unit Model 100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 35.8 [79] Electric current A 15.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP550YSJM-A PURY-EP300YJM-A Model name of BC controller PURY-EP250YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 5 Unit No. of units in operation Operating conditions 5 Indoor unit Model 100/100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 38.4 [85] Electric current A 16.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP600YSJM-A PURY-EP300YJM-A Model name of BC controller PURY-EP300YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 6 Unit No. of units in operation Operating conditions 6 Indoor unit Model 100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 39.0 [86] Electric current A 18.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP600YSJM-A1 PURY-EP350YJM-A Model name of BC controller PURY-EP250YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 6 Unit No. of units in operation Operating conditions 6 Indoor unit Model 100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 39.0 [86] Electric current A 19.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP650YSJM-A PURY-EP350YJM-A Model name of BC controller PURY-EP300YJM-A CMB-P108V-GA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 6 Unit No. of units in operation Operating conditions 6 Indoor unit Model 100/100/100/100/125/125 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 40.0 [89] Electric current A 20.
[ VIII Test Run Mode ] Outdoor unit model Operation PURY-EP700YSJM-A PURY-EP350YJM-A Model name of BC controller PURY-EP350YJM-A CMB-P1016V-HA1 20°C/ - Ambient temperature Indoor [68°F/ -] DB/WB 7°C/ 6°C Outdoor [45°F/ 43°F] No. of connected units 7 Unit No. of units in operation Operating conditions 7 Indoor unit Model 100/100/100/100/100/100/100 - Fan speed Hi Main pipe Piping Branch pipe 5 [17] m [ft] 10 [33] Total pipe length kg [lbs-oz] 40.6 [90] Electric current A 23.
IX Troubleshooting [1] [2] [3] [4] [5] [6] [7] [8] HWE10050 Error Code Lists ............................................................................................................. 225 Responding to Error Display on the Remote Controller................................................. 228 Investigation of Transmission Wave Shape/Noise......................................................... 298 Troubleshooting Principal Parts .........................................................................
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[ IX Troubleshooting ] IX Troubleshooting [1] Error Code Lists 01 05 (Note) Serial communication error O 1102 1202 - Discharge temperature fault O 1301 - - Low pressure fault O 1302 1402 - High pressure fault O 1500 1600 - Refrigerant overcharge O - 1605 - Preliminary suction pressure fault O 2500 - - Drain sensor submergence O 2502 - - Drain pump fault O 2503 - - Drain sensor (Thd) fault O 2600 - - Water leakage O 2601 - - Water supply cutoff O 3121 -
[ IX Troubleshooting ] Indoor unit gas-side pipe temperature (TH23) 5103 1205 00 Temperature sensor fault 5104 1202 - O O Outside temperature (TH24) Outdoor unit discharge temperature (TH4) O 1204 - Temperature sensor fault Accumulator inlet temperature (TH5) O 5106 1216 - Temperature sensor fault Heat exchanger inlet temperature (TH6) O 5107 1221 - Temperature sensor fault Outside temperature (TH7) O 5110 1214 01 Temperature sensor fault Heatsink temperature (THHS) O 5111
[ IX Troubleshooting ] Searched unit Polarity setting error 6602 - - Transmission processor hardware error O O O O O 6603 - - Transmission line bus busy error O O O O O 6606 - - Communication error between device and transmission processors O O O O O 6607 - - No ACK error O O O O O 6608 - - No response error O O O O O 6831 - - MA controller signal reception error (No signal reception) O O 6832 - - MA remote controller signal transmission error (Synchro
[ IX Troubleshooting ] [2] Responding to Error Display on the Remote Controller 0403 1. Error Code 0403 Serial communication error 2. Error definition and error detection method Serial communication error between the control board and the INV board on the compressor, and between the control board and the Fan board Detail code 01: Between the control board and the INV board Detail code 05: Between the control board and the Fan board 3.
[ IX Troubleshooting ] 1102 1. Error Code 1102 Discharge temperature fault 2. Error definition and error detection method 1) If the discharge temperature of 120 °C [248°F] or more is detected during the above operation (the first detection), the outdoor unit stops once, turns to anti-restart mode for 3 minutes, and restarts after 3 minutes automatically.
[ IX Troubleshooting ] 1301 1. Error Code 1301 Low pressure fault 2. Error definition and error detection method When starting the compressor from Stop Mode for the first time if low pressure reads 0.098MPa [14psi] immediately before start-up, the operation immediately stops. 3. Cause, check method and remedy Cause (1) Inner pressure drop due to a leakage. (2) Low pressure sensor failure (3) Short-circuited pressure sensor cable due to torn outer rubber (4) A pin on the male connector is missing.
[ IX Troubleshooting ] 1302 1. Error Code 1302 High pressure fault 1 (Outdoor unit) 2. Error definition and error detection method 1) If the pressure of 3.78MPa [548psi] or higher is detected by the pressure sensor during operation (the first detection), the outdoor stops once, turns to antirestart mode for 3 minutes, and restarts after 3 minutes automatically. 2) If the pressure of 3.
[ IX Troubleshooting ] 1. Error Code 1302 High pressure fault 2 (Outdoor unit) 2. Error definition and error detection method If the pressure of 0.098MPa [14psi] or lower is registered on the pressure sensor immediately before start-up, it will trigger an abnormal stop, and error code "1302" will be displayed. 3. Cause, check method and remedy Cause Check method and remedy (1) Inner pressure drop due to a leakage. Refer to the page on the troubleshooting of the high pressure sensor.
[ IX Troubleshooting ] 2500 1. Error Code 2500 Drain sensor submergence (Models with a drain sensor) 2. Error definition and error detection method 1) If an immersion of the drain sensor in the water is detected while the unit is in any mode other than the Cool/Dry mode and when the drain pump goes from OFF to ON, this condition is considered preliminary water leakage. While this error is being detected, humidifier output cannot be turned on.
[ IX Troubleshooting ] 1. Error Code 2500 Drain sensor submergence (Models with a float switch) 2. Error definition and error detection method 1) If an immersion of the float switch in the water is detected while the unit is in any mode other than the Cool/Dry mode and when the drain pump goes from OFF to ON, this condition is considered preliminary water leakage. While this error is being detected, humidifier output cannot be turned on.
[ IX Troubleshooting ] 2502 1. Error Code 2502 Drain pump fault (Models with a drain sensor) 2. Error definition and error detection method 1) Make the drain sensor thermistor self-heat. If the temperature rise is small, it is interpreted that the sensor is immersed in water. This condition is considered to be a preliminary error, and the unit goes into the 3-minute restart delay mode.
[ IX Troubleshooting ] 1. Error Code 2502 Drain pump fault (Models with a float switch) 2. Error definition and error detection method 1) The immersion of sensor tip in water is detected by the ON/OFF signal from the float switch. ∗Submergence of the sensor When it is detected that the float switch has been ON for 15 seconds, it is interpreted that the sensor tip is immersed in water.
[ IX Troubleshooting ] 2503 1. Error Code 2503 Drain sensor (Thd) fault 2. Error definition and error detection method If the open or short circuit of the thermistor has been detected for 30 seconds, this condition is considered to be a preliminary error, and the unit goes into the 3-minute restart delay mode. If another episode of the above condition is detected during the preliminary error, this is considered a drain sensor error.
[ IX Troubleshooting ] 2600 1. Error Code 2600 Water leakage 2. Cause, check method and remedy Check that water does not leak from the pipes in such as the humidifier. 2601 1. Error Code 2601 Water supply cutoff 2. Cause, check method and remedy Cause Check method and remedy (1) The water tank of the humidifier is empty. Check the amount of supply water. Check for the solenoid valve and for the connection. (2) The solenoid valve for humidification is OFF. Check the connector.
[ IX Troubleshooting ] 3121 1. Error Code 3121 Out-of-range outside air temperature 2. Error definition and error detection method When the thermistor temperature of -28°C[-18°F] or below has continuously been detected for 3 minutes during heating operation (during compressor operation), the unit makes an error stop and "3121" appears on the display. (Use the OC thermistor temperature to determine when two outdoor units are in operation.
[ IX Troubleshooting ] 4102 1. Error Code 4102 Open phase 2. Error definition and error detection method An open phase of the power supply (L1 phase, N phase) was detected at power on. The L3 phase current is outside of the specified range. The open phase of the power supply may not always be detected if a power voltage from another circuit is applied. 3. Cause, check method and remedy Cause Check method and remedy Check the input voltage to the power supply terminal block TB1.
[ IX Troubleshooting ] 4106 1. Error Code 4106 2. Error definition and error detection method Transmission power output failure 3. 1) 2) 3) 4) Cause Wiring failure Transmission power supply cannot output voltage because overcurrent was detected. Voltage cannot be output due to transmission power supply problem. Transmission voltage detection circuit failure 4.
[ IX Troubleshooting ] 4115 1. Error Code 4115 Power supply signal sync error 2. Error definition and error detection method The frequency cannot be determined when the power is switched on. 3. Cause, check method and remedy Cause Check method and remedy (1) Power supply error Check the voltage of the power supply terminal block (TB1). (2) Noise filter problem Coil problem Circuit board failure (3) Faulty wiring Check fuse F01 on the control board.
[ IX Troubleshooting ] 4220?4225 1. Error Code 4220 4225 Abnormal bus voltage drop (Detail code 108) 2. Error definition and error detection method If Vdc 289V or less is detected during Inverter operation. (S/W detection) 3. Cause, check method and remedy (1) Power supply environment Check whether the unit makes an instantaneous stop when the detection result is abnormal or a power failure occurs.
[ IX Troubleshooting ] 1. Error Code 4220 4225 Abnormal bus voltage rise (Detail code 109) 2. Error definition and error detection method If Vdc 830V is detected during inverter operation. 3. Cause, check method and remedy (1) Different voltage connection Check the power supply voltage on the power supply terminal block (TB1). (2) INV board failure If the problem recurs, replace the INV board.
[ IX Troubleshooting ] 1. Error Code 4220 4225 Low bus voltage at startup (Detail code 131) 2. Error definition and error detection method When Vdc 160 V is detected just before the inverter operation. 3. Cause, check method and remedy (1) Inverter main circuit failure Same as detail code 108 of 4220 error Refer to section -7- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 323) 4230 1. Error Code 4230 Heatsink overheat protection 2.
[ IX Troubleshooting ] 4240 1. Error Code 4240 Overload protection 2. Error definition and error detection method If the output current of "(Iac) >Imax (Arms)" or "THHS > 95°C[203°F] " is continuously detected for 10 minutes or more during inverter operation. Model Imax(Arms) P200,P250 EP200 19 P300-P450 EP250-EP350 27 3.
[ IX Troubleshooting ] 4250?4250 4255 1. Error Code 4250 4255 IPM error (Detail code 101) 2. Error definition and error detection method In the case of 4250 Overcurrent is detected by the overcurrent detection resistor (RSH) on the INV board. In the case of 4255 IPM error signal is detected. 3. Cause, check method and remedy In the case of 4250 Cause (1) Inverter output related Check method and remedy Refer to IX [4] -7- (2) [1]-[4].
[ IX Troubleshooting ] 1. Error Code 4250 Instantaneous overcurrent (Detail code 106) Overcurrent (effective value) (Detail code 107) 2. Error definition and error detection method Overcurrent 94Apeak or 22Arm and above is detected (P200-P250, EP200 models) OR 94Apeak or 35Arm and above is detected (P300-P450, EP250-EP350 model and above) by the current sensor. 3. Cause, check method and remedy Cause (1) Check method and remedy Inverter output related Refer to IX [4] -7- (2) [1]-[4].
[ IX Troubleshooting ] 1. Error Code 4250 4255 Overcurrent error due to short-circuited motor (Detail code 105) 2. Error definition and error detection method When a short is detected on the load side just before starting the inverter operation. 3. Cause, Check method and remedy In the case of 4250 Cause Check method and remedy (1) Short - circuited compressor Refer to IX [4] -7- (2) [2].(page 325) (2) Output wiring Check for a short circuit.
[ IX Troubleshooting ] 5101,5102,5103,5104 1.
[ IX Troubleshooting ] 5102,5103,5104,5105,5106,5107?5103,5104,5105,5106,5107 1. Error Code 5103 Heat exchanger outlet temperature sensor (TH3) fault (Outdoor unit) 5104 Discharge temperature sensor (TH4) fault (Outdoor unit) 5105 Accumulator inlet temperature sensor (TH5) fault (Outdoor unit) 5106 Heat exchanger inlet temperature sensor (TH6) fault (Outdoor unit) 5107 Outside temperature sensor (TH7) fault (Outdoor unit) 2.
[ IX Troubleshooting ] 5110 1. Error Code 5110 Heatsink temperature sensor (THHS) fault (Detail code 01) 2. Error definition and error detection method When a short or an open of THHS is detected just before or during the inverter operation. 3. Cause, check method and remedy Cause (1) Check method and remedy INV board failure If the problem recurs when the unit is put into operation, replace the INV board.
[ IX Troubleshooting ] 5201 1. Error Code 5201 High-pressure sensor fault (63HS1) 2. Error definition and error detection method If the high pressure sensor detects 0.098MPa [14psi] or less during the operation, the outdoor unit stops once, turns to antirestart mode for 3 minutes, and restarts after 3 minutes when the detected high pressure sensor is 0.098MPa [14psi] or more. If the high pressure sensor detects 0.
[ IX Troubleshooting ] 1. Error Code 5201 High-pressure sensor fault (Outdoor unit 63HS1/BC controller PS1) 5203 Intermediate pressure sensor fault (BC controller PS3) 2. Error definition and error detection method When a pressure sensor reading of 4.06 MPa [589 psi] or above is detected, error codes "5201" and "5203" will appear. The unit will continue its operation by using other sensors as a backup. 3.
[ IX Troubleshooting ] 5301 1. Error Code 5301 ACCT sensor fault (Detail code 115) 2. Error definition and error detection method When the formula "output current < 1.5 Arms" remains satisfied for 10 seconds while the inverter is in operation. 3. Cause, check method and remedy Cause Check method and remedy (1) Inverter open output phase Check the output wiring connections. (2) Compressor failure Refer to IX [4] -7- (2) [2].(page 325) (3) INV board failure Refer to IX [4] -7- (2) [1], [3], [4].
[ IX Troubleshooting ] 1. Error Code 5301 Open-circuited IPM/Loose ACCT connector (Detail code 119) 2. Error definition and error detection method Presence of enough current cannot be detected during the self-diagnostic operation immediately before inverter startup. 3. Cause, check method and remedy Cause Check method and remedy (1) Inverter output wiring problem Check output wiring connections. Confirm that the U- and W-phase output cables are put through CT12 and CT22 on the INV board respectively.
[ IX Troubleshooting ] 5401 1. Error Code 5401 Temperature sensor fault 2. Error definition and error detection method A short-circuit or an open-circuit of the humidity sensor is detected during operation. 3. Cause, check method and remedy Cause Check method and remedy (1) Connector contact failure (CN30) (Loose connector) 1) Check the connector for proper contact. Reconnect the connector, and operate the unit to check for proper operation.
[ IX Troubleshooting ] 5701 1. Error Code 5701 Loose float switch connector 2. Error definition and error detection method Detection of the disconnected float switch (open-phase condition) during operation 3. Cause, check method and remedy (1) CN4F disconnection or contact failure Check for disconnection of the connector (CN4F) on the indoor unit control board. 6201 1. Error Code 6201 Remote controller board fault (nonvolatile memory error) 2.
[ IX Troubleshooting ] 6600 1. Error Code 6600 Address overlaps 2. Error definition and error detection method An error in which signals from more than one indoor units with the same address are received The address and attribute that appear on the remote controller indicate the controller that detected the error. 3.
[ IX Troubleshooting ] 6602 1. Error Code 6602 Transmission processor hardware error 2. Error definition and error detection method Although "0" was surely transmitted by the transmission processor, "1" is displayed on the transmission line. The address/attribute appeared on the display on the remote controller indicates the controller where an error occurred. 3.
[ IX Troubleshooting ] 6603 1. Error Code 6603 Transmission line bus busy error 2. Error definition and error detection method Generated error when the command cannot be transmitted for 4-10 minutes in a row due to bus-busy Generated error when the command cannot be transmitted to the transmission line for 4-10 minutes in a row due to noise The address/attribute appeared on the display on the remote controller indicates the controller where an error occurred. 3.
[ IX Troubleshooting ] 6607 1. Error Code 6607 No ACK error 2. Error definition and error detection method The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is transmitted six times in a row with 30 seconds interval, the error is detected on the transmission side.) The address/attribute appeared on the display on the remote controller indicates the controller which did not provide the response (ACK). 3.
[ IX Troubleshooting ] 1. Error Code 6607 No ACK error 2. Error definition and error detection method The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is transmitted six times in a row with 30 seconds interval, the error is detected on the transmission side.) The address/attribute appeared on the display on the remote controller indicates the controller which did not provide the response (ACK). 3.
[ IX Troubleshooting ] 1. Error Code 6607 No ACK error 2. Error definition and error detection method The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is transmitted six times in a row with 30 seconds interval, the error is detected on the transmission side.) The address/attribute appeared on the display on the remote controller indicates the controller which did not provide the response (ACK). 3.
[ IX Troubleshooting ] 1. Error Code 6607 No ACK error 2. Error definition and error detection method The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is transmitted six times in a row with 30 seconds interval, the error is detected on the transmission side.) The address/attribute appeared on the display on the remote controller indicates the controller which did not provide the response (ACK). 3.
[ IX Troubleshooting ] 1. Error Code 6607 No ACK error 2. Error definition and error detection method The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is transmitted six times in a row with 30 seconds interval, the error is detected on the transmission side.) The address/attribute appeared on the display on the remote controller indicates the controller which did not provide the response (ACK). 3.
[ IX Troubleshooting ] 1. Error Code 6607 No ACK error 2. Error definition and error detection method The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is transmitted six times in a row with 30 seconds interval, the error is detected on the transmission side.) The address/attribute appeared on the display on the remote controller indicates the controller which did not provide the response (ACK). 3.
[ IX Troubleshooting ] 1. Error Code 6607 No ACK error 2. Error definition and error detection method The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is transmitted six times in a row with 30 seconds interval, the error is detected on the transmission side.) The address/attribute appeared on the display on the remote controller indicates the controller which did not provide the response (ACK). 3.
[ IX Troubleshooting ] 1. Error Code 6607 No ACK error 2. Error definition and error detection method The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is transmitted six times in a row with 30 seconds interval, the error is detected on the transmission side.) The address/attribute appeared on the display on the remote controller indicates the controller which did not provide the response (ACK). 3.
[ IX Troubleshooting ] 1. Error Code 6607 No ACK error 2. Error definition and error detection method The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is transmitted six times in a row with 30 seconds interval, the error is detected on the transmission side.) The address/attribute appeared on the display on the remote controller indicates the controller which did not provide the response (ACK). 3.
[ IX Troubleshooting ] 6608 1. Error Code 6608 No response error 2. Error definition and error detection method When no response command is returned although acknowledgement (ACK) is received after transmission, an error is detected. When the data is transmitted 10 times in a row with 3 seconds interval, an error is detected on the transmission side. The address/attribute appeared on the display on the remote controller indicates the controller where an error occurred. 3.
[ IX Troubleshooting ] 6831 1. Error Code 6831 MA controller signal reception error (No signal reception) 2. Error definition and error detection method Communication between the MA remote controller and the indoor unit is not done properly. No proper data has been received for 3 minutes. 3. 1) 2) 3) 4) 5) 6) 7) Cause Contact failure of the remote controller lines of MA remote controller or the indoor unit. All the remote controllers are set to SUB.
[ IX Troubleshooting ] 6832 1. Error Code 6832 MA remote controller signal transmission error (Synchronization error) 2. Error definition and error detection method MA remote controller and the indoor unit is not done properly. Failure to detect opening in the transmission path and unable to send signals ∗Indoor unit : 3 minutes ∗Remote controller : 6 seconds 3.
[ IX Troubleshooting ] 6833 1. Error Code 6833 MA remote controller signal transmission error (Hardware error) 2. Error definition and error detection method Communication between the MA remote controller and the indoor unit is not done properly. An error occurs when the transmitted data and the received data differ for 30 times in a row. 3.
[ IX Troubleshooting ] 6834 1. Error Code 6834 MA controller signal reception error (Start bit detection error) 2. Error definition and error detection method Communication between the MA remote controller and the indoor unit is not done properly. No proper data has been received for 2 minutes. 3. 1) 2) 3) 4) 5) 6) 7) Cause Contact failure of the remote controller lines of MA remote controller or the indoor unit. All the remote controllers are set to SUB.
[ IX Troubleshooting ] 7100 1. Error Code 7100 Total capacity error 2. Error definition and error detection method The model total of indoor units in the system with one outdoor unit exceeds limitations. 3. Error source, cause, check method and remedy, Error source Outdoor unit Cause (1) (2) Check method and remedy The model total of indoor units in the sys- 1) tem with one outdoor unit exceeds the following table. Check the Qj total (capacity code total) of indoor units connected.
[ IX Troubleshooting ] 7101 1. Error Code 7101 Capacity code setting error 2. Error definition and error detection method Connection of incompatible (wrong capacity code) indoor unit or outdoor unit 3. Error source, cause, check method and remedy Error source Outdoor unit Indoor unit Cause (1) Check method and remedy The model name (capacity code) set by the switch (SW2) is wrong. *The capacity of the indoor unit can be confirmed by the self-diagnosis function (SW1 operation) of the outdoor unit.
[ IX Troubleshooting ] 7102 1. Error Code 7102 Wrong number of connected units 2. Error definition and error detection method The number of connected indoor units is "0" or exceeds the allowable value. 3. Error source, cause, check method and remedy Error source Outdoor unit Cause (1) Check method and remedy Number of indoor units connected to the outdoor terminal block (TB3) for indoor/ outdoor transmission lines exceeds limitations described below.
[ IX Troubleshooting ] 7105 1. Error Code 7105 Address setting error 2. Error definition and error detection method Erroneous setting of OC unit address Erroneous setting of BC controller address 3. Cause, check method and remedy Error source Outdoor unit BC controller Cause Check method and remedy Erroneous setting of OC unit address The address of outdoor unit is not being set to 51 100. The address of BC controller is not set to 51 - 100.
[ IX Troubleshooting ] 7107 1. Error Code 7107 Port setting error 2. Error definition and error detection method The port with wrong number is connected to the indoor unit.The model total connected to the port is greater than the specification. 3. Cause, check method and remedy Error source BC controller Cause (1) Check method and remedy Model total of indoor units per each port or per each port merge is greater than the specification.
[ IX Troubleshooting ] 7110 1. Error Code 7110 Connection information signal transmission/reception error 2. Error definition and error detection method The given indoor unit is inoperable because it is not properly connected to the outdoor unit in the same system. 3. Error source, cause, check method and remedy Error source Outdoor unit Cause Check method and remedy (1) Power to the transmission booster is cut off.
[ IX Troubleshooting ] 7113 1. Error Code 7113 Function setting error (incorrect resistor connection) 2. Error source, cause, check method and remedy Error source Outdoor unit Cause Check method and remedy (1) Wiring fault (Detail code 15) (2) Loose connectors, short-circuit, con- 1) tact failure Check the connector CNTYP5 on the control board for proper connection.
[ IX Troubleshooting ] 7117 1. Error Code 7117 Model setting error 2. Error source, cause, check method and remedy Error source Outdoor unit Cause Check method and remedy (1) Wiring fault (Detail code 15) (2) Loose connectors, short-circuit, con- 1) tact failure Check the connector CNTYP5 on the control board for proper connection. (Detail code 14) 1) Check the connector CNTYP4 on the control board for proper connection.
[ IX Troubleshooting ] 7130 1. Error Code 7130 Incompatible unit combination 2. Error definition and error detection method The check code will appear when the indoor units for use with a different type of refrigerant or incompatible units are connected. 3. Error source, cause, check method and remedy Error source Outdoor unit HWE10050 Cause Check method and remedy The connected indoor unit or BC controller is exclusively for use with R22 or R407C.
[ IX Troubleshooting ] Troubleshooting according to the remote controller malfunction or the external input error In the case of MA remote controller -1- Troubleshooting according to the remote controller malfunction or the external input error In the case of MA remote controller 1. Phenomena Even if the operation button on the remote controller is pressed, the display remains unlit and the unit does not start running.(Power indicator does not appear on the screen.
[ IX Troubleshooting ] In the case of MA remote controller 2. Phenomena When the remote controller operation SW is turned on, the operation status briefly appears on the display, then it goes off, and the display lights out immediately, and the unit stops. (1) 1) 2) 3) Cause The power for the M-NET transmission line is not supplied from the outdoor unit. Short circuit of the transmission line. Incorrect wiring of the M-NETtransmission line on the outdoorunit.
[ IX Troubleshooting ] In the case of MA remote controller 3. Phenomena "HO" or "PLEASE WAIT" display on the remote controller does not disappear, and no operation is performed even if the button is pressed. ("HO" or "PLEASE WAIT" display will normally turn off 5 minutes later after the power on.) (1) 1) 2) 3) Cause The power for the M-NET transmission line is not supplied from the outdoor unit. Short-circuited transmission line Incorrect wiring of the M-NET transmission line on the outdoor unit.
HWE10050 YES YES YES - 288 - MA remote controller →To "1. Phenomenon" NO All the indoor unit power failure? NO Is LED1 on the indoor unit control board lit? YES NO Power on YES NO Is "Centralized" displayed? NO Error display? NO When the unit is operated with the remote controller, will "ON" appear on the display? MA remote controller →To "1. Phenomenon" To "2. Phenomenon" NO Check the voltage between the MA remote controller terminals (A and B).
[ IX Troubleshooting ] Troubleshooting according to the remote controller malfunction or the external input error In case of ME remote controller In case of ME remote controller 1. Phenomena Even if the operation button on the remote controller is pressed, the display remains unlit and the unit does not start running. (Power indicator does not appear on the screen.) (1) 1) 2) 3) Cause The power for the M-NET transmission line is not supplied from the indoor unit. Short circuit of the transmission line.
[ IX Troubleshooting ] In case of ME remote controller 2. Phenomena When the remote controller operation SW is turned on, a temporary operation display is indicated, and the display lights out immediately. (1) Cause 1) The power is not supplied to the indoor unit. The main power of the indoor unit (AC220V) is not on. The connector on the indoor unit board has come off. The fuse on the indoor unit board has melted.
[ IX Troubleshooting ] In case of ME remote controller 3. Phenomena "HO" display on the remote controller does not disappear, and no operation is performed even if the button is pressed. (1) Cause Without using MELANS 1) Outdoor unit address is set to "00" 2) A wrong address is set. The address of the indoor unit that is connected to the remote controller is incorrect. (It should equal the ME remote controller address plus 100.) A wrong address is set to the ME remote controller.
[ IX Troubleshooting ] In case of ME remote controller 4. Phenomena "88" appears on the remote controller when the address is registered or confirmed. (1) Cause, check method and remedy Cause Check method and remedy An error occurs when the address is registered or confirmed. (common) 1. A wrong address is set to the unit to be coupled. (1) Confirm the address of unit to be coupled. 2. The transmission line of the unit to be coupled is dis- (2) connected or is not connected.
[ IX Troubleshooting ] Troubleshooting according to the remote controller malfunction or the external input error Both for MA remote controller and ME remote controller Both for MA remote controller and ME remote controller 1. Phenomena Although cooling operation starts with the normal remote controller display, the capacity is not enough (1) Cause, check method and remedy Cause 1. Check method and remedy Compressor frequency does not rise sufficiently. Faulty detection of pressure sensor.
[ IX Troubleshooting ] Cause Check method and remedy 4. Long piping length The cooling capacity varies greatly depending on the pressure loss. (When the pressure loss is large, the cooling capacity drops.) 5. Piping size is not proper (thin) 6. Insufficient refrigerant amount Protection works and compressor frequency does not rise due to high discharge temperature. Refer to 1-1. (Compressor frequency does not rise sufficiently.
[ IX Troubleshooting ] 2. Phenomena Although heating operation starts with the normal remote controller display, the capacity is not enough. (1) Cause, check method and remedy Cause 1. Check method and remedy Compressor frequency does not rise sufficiently. Faulty detection of pressure sensor. Protection works and compressor frequency does not rise due to high discharge temperature Protection works and compressor frequency does not rise due to high pressure.
[ IX Troubleshooting ] Cause Check method and remedy 2. Indoor unit LEV malfunction Insufficient refrigerant flows due to LEV malfunction (not enough opening). Refer to the page of LEV troubleshooting ([4] -5).(page 309) 3. Temperature reading error on the indoor unit piping temperature sensor If the temperature reading on the sensor is higher than the actual temperature, it makes the subcool seem smaller than it is, and the LEV opening decreases too much. Check the thermistor.
[ IX Troubleshooting ] 3. Phenomena Outdoor unit stops at times during operation. (1) Cause, check method and remedy Cause Check method and remedy The first stop is not considered as an error, as the (1) unit turns to anti-restart mode for 3 minutes as a preliminary error. Check the mode operated in the past by displaying preliminary error history on LED display with SW1. Error mode Reoperate the unit to find the mode that stops the unit by displaying preliminary error history on LED display with SW1.
[ IX Troubleshooting ] [3] Investigation of Transmission Wave Shape/Noise 1. M-NET transmission Control is performed by exchanging signals between the outdoor unit and the indoor unit (ME remote controller) through MNET transmission. Noise interference on the transmission line will interrupt the normal transmission, leading to erroneous operation.
[ IX Troubleshooting ] (3) Check method and remedy 1) Measures against noise Check the followings when noise exists on the wave or the errors described in (1) occur. Error code definition Remedy Check that the wiring 1. The transmission line and work is performed acthe power line are not cording to wiring wired too closely. specifications. 2. The transmission line is not bundled with that for another systems. Isolate the transmission line from the power line (5cm [1-31/32"] or more).
[ IX Troubleshooting ] 2. MA remote controller transmission The communication between the MA remote controller and the indoor unit is performed with current tone burst. (1) Symptoms caused by noise interference on the transmission line If noise is generated on the transmission line, and the communication between the MA remote controller and the indoor unit is interrupted for 3 minutes in a row, MA transmission error (6831) will occur.
[ IX Troubleshooting ] [4] Troubleshooting Principal Parts High-Pressure Sensor -1- High-Pressure Sensor (63HS1, PS1, PS3) 1. Compare the pressure that is detected by the high pressure sensor, and the high-pressure gauge pressure to check for failure. By configuring the digital display setting switch (SW1) as shown in the figure below, the pressure as measured by the highpressure sensor appears on the LED1 on the control board.
[ IX Troubleshooting ] Low-Pressure Sensor -2- Low-Pressure Sensor (63LS) 1. Compare the pressure that is detected by the low pressure sensor, and the low pressure gauge pressure to check for failure. By configuring the digital display setting switch (SW1) as shown in the figure below, the pressure as measured by the lowpressure sensor appears on the LED1 on the control board.
[ IX Troubleshooting ] Solenoid Valve -3- Solenoid Valve Check whether the output signal from the control board and the operation of the solenoid valve match. Setting the self-diagnosis switch (SW1) as shown in the figure below causes the ON signal of each relay to be output to the LED's. Each LED shows whether the relays for the following parts are ON or OFF. LEDs light up when relays are on. The circuits on some parts are closed when the relays are ON. Refer to the following instructions.
[ IX Troubleshooting ] (4) SV4a, SV4b, SV4d (P200 - P300, EP200 models), SV4a - 4d (P350 - P450, EP250 - EP350 models)(Controls heat exchanger capacity) 1) Depending on the conditions during Cooling-only operation, at least one of the solenoid valves among SV4a through 4d turns on. Check for proper operation on the LED and by listening for the operation sound of the solenoid valve. 2) During Heating-only operation, SV4a through 4d all turn on (except that SV4c on the P450 and EP350 models turns off).
[ IX Troubleshooting ] Refrigerant Circuit Figure (P350 - P400, EP250, EP300 models) Solenoid Valves Block SV4c SV4a SV4d SV4b CV7a TH6 TH7 CV3a HEX CV2a CV5a SV5b BV1 CV8a CV9a ST1 CV10a BV2 CV6a TH3 CV4a SV5c Solenoid valve block (four compartments) P350 - P400, EP250, EP300 models SV4d SV4d SV4c SV4c SV4b SV4a SV4b SV4a 5 5 6 6 4 2 3 4 1 3 1 2 Pin-face tool SV4c Pin-face tool SV4d SV4a SV4b Solenoid valve Valve Tightening torque : 150N.m [1500kg.
[ IX Troubleshooting ] Refrigerant Circuit diagram (P450, EP350 models) SV4c Solenoid valve block CV7b CV7a SV4a SV4b SV4d CV4b HEX2 TH7 CV5b TH6 CV8a CV2b CV6b HEX1 CV9a CV2a SV5b CV3a BV1 CV5a CV6a ST1 CV4a TH3 BV2 SV5c Solenoid valve block (three compartments) P450, EP350 models SV4d SV4a SV4b SV4b SV4d SV4a 4 4 5 2 5 1 2 3 3 1 is located behind 3 HWE10050 - 306 - GB
[ IX Troubleshooting ] (5) In the case of SV5b (Bypass valve) This solenoid valve closes when energized (when the relay is on). This valve turns off for five minutes after the completion of the defrost cycle, or when SV9 is on turned ON and the value of 63HS1 is greater than 3.5 MPa [507psi] during Heating-only or Heating-main operation at the minimum frequency.
[ IX Troubleshooting ] Is the wiring between the FAN board, 52F, and fan motor connected correctly? NO Correct the wiring according to the wiring diagram. YES Does 52F operate on the coil voltage (206-252V)? NO Replace 52F. YES Is a voltage of between 342V and 456V applied to the power supply input? YES NO Check the wiring between 52F and the control board. NO Correct the wiring according to the wiring diagram. YES Check that the secondary voltage on the transformer is between 206V and 252V.
[ IX Troubleshooting ] LEV -5- LEV LEV operation Indoor unit LEV, and BC controller LEV1 and LEV3 (linear expansion valves) are driven by the pulse signal from the circuit board and are controlled by a stepping motor. (1) Indoor LEV and BC controller LEV The valve opening changes according to the number of pulses.
[ IX Troubleshooting ] 3) Pulse signal output and valve operation Output (phase) number Output state 1 1 ON 2 OFF 3 OFF 4 ON 2 3 ON OFF ON ON OFF ON OFF OFF 4 OFF OFF ON ON Output pulses change in the following orders when the Valve is closed; 1 2 3 4 1 Valve is open; 4 3 2 1 4 *1. When the LEV opening angle does not change, all the output phases will be off. *2. When the output is open phase or remains ON, the motor cannot run smoothly, and rattles and vibrates.
[ IX Troubleshooting ] (2) Judgment methods and possible failure mode Malfunction mode Microcomputer driver circuit failure Judgment method Remedy Disconnect the control board connector and connect the check LED as shown in the figure below. 6 When the drive circuit has a problem, replace the control board. 5 4 3 2 1k LED 1 resistance : 0.25W 1k LED : DC15V 20mA or more When the main power is turned on, the indoor unit circuit board outputs pulse signals to the indoor unit LEV for 10 seconds.
[ IX Troubleshooting ] Troubleshooting Principal Parts of BC Controller -6- Troubleshooting Principal Parts of BC Controller 1. Pressure sensor Troubleshooting flow chart for pressure sensor START Note 1 Check whether the pressure sensor or the connectors of P1 and P3 are connected, properly NO Repair the fault.
[ IX Troubleshooting ] 1) BC controller: Phenomena when the pressure sensor is connected wrongly (reverse connection of P1 and P3) to the board. Symptoms Cooling-only Normal Cooling-main Non-cooling SC11 large SC16 small PHM large Heating only Indoor heating SC small Heating indoor Thermo ON Especially noise is large. SC11 large SC16 small PHM large Heating main Non-cooling Indoor heating SC small Heating indoor Thermo ON Especially noise is large.
[ IX Troubleshooting ] 2. Temperature sensor Troubleshooting instructions for thermistor START Note 1 Pull out the thermistor connector in trouble from the board. Note 2 Measure the temperature of the thermistor in trouble. (actual measurement value) Note 2 Check the thermistor resistor. Compare the temperature corresponding to the resistance measured by the thermistor and the temperature measured by a commercially available thermometer, and check whether there is no difference between them.
[ IX Troubleshooting ] 1) For the connectors on the board, TH11 and TH12 are connected to CN10, and TH15 and TH16 are connected to CN11. Disconnect the connector in trouble, and check the sensor of each number. 2) Pull out the sensor connector from the I/O board, Do not pull the sensor by holding the lead wire. Measure the resistance with such as a tester. Compare the measured value with that of shown in the figure below. When the result is 10%, it is normal.
[ IX Troubleshooting ] 3. Troubleshooting flow chart for LEV Solenoid valve (1) LEV No cooling capacity No heating capacity Note 1 Check whether the electric expansion valve and the solenoid valve connector are not disconnected or not loose. NO Fault is found. Repair the fault. Run the cooling operation or the heating operation in the system in trouble (only in one system). Heating operation Cooling or heating operation Cooling operation Note 2 Note 2 Check that LEV1 is fully open.
[ IX Troubleshooting ] 1) BC controller: Phenomena when LEV is connected wrongly (reverse connection of LEV1 and LEV3) to the board.
[ IX Troubleshooting ] Self-diagnosis LED Measurement data Symbol SW1 setting value 1 2 3 4 5 6 7 8 9 10 LEV1 opening ON LEV2 opening ON LEV3 opening ON 1 2 3 4 5 6 7 8 9 10 G1, GA1, HA1 (Standard / main) 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 BC controller bypass outlet superheat SH12 ON BC controller intermediate part subcool SC16 ON BC controller liquid-side subcool SC11 ON 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 HWE10050 1 2 3 4 5 6 7 8 9 10 GB1, HB1 (Sub 1) LEV3 opening
[ IX Troubleshooting ] Troubleshooting flow chart for solenoid valve body Start Check for pins not fully inserted on the connector and check the colors of the lead wires visually. Intermediate connector To LEV Control board 2 Brown 5 Red 1 Blue 3 Orange 4 Yellow 6 White Brown Red Blue Orange Yellow White OK? When LEV is fully closed : tick sound When LEV is fully open : no sound Check the above. 6 5 4 3 2 1 OK? YES Repair the fault.
[ IX Troubleshooting ] (2) Solenoid valve (SVA, SVB, SVC) Faulty judgment of solenoid valve Stop the operation of the applied BC remote controller system. NO Stop the operation YES Check whether the wire to the solenoid valve is not connected wrongly, or the connector is not loose. NO No fault Repair the fault. YES Run the cooling or heating operation of the refrigerant system of the solenoid valve in trouble.
[ IX Troubleshooting ] Check whether the BC board output signal corresponds with the solenoid valve operation correspond. 1) SVA, SVB, SVC SVA, SVB, and SVC turn on or off according to the indoor unit operation mode. Mode Port Cooling Heating Stopped Defrost Fan SVA ON OFF OFF OFF OFF SVB OFF ON OFF OFF OFF SVC ON OFF OFF OFF ON SVM1, SVM1b, SVM2, SVM2b SVM1, SVM1b, SVM2, and SVM2b turn on or off according to the indoor unit operation mode.
[ IX Troubleshooting ] 4. BC controller transformer BC controller control board CNTR CN03 Red White Red Normal CNTR(1)-(3) about 58 ohm. CN03(1)-(3) about 1.6 ohm. Red Abnormal Open-phase or shorting * Before measuring the resistance, pull out the connector.
[ IX Troubleshooting ] Inverter -7- Inverter Replace only the compressor if only the compressor is found to be defective. Replace only the fan motor if only the fan motor is found to be defective. Replace the defective components if the inverter is found to be defective. If both the compressor and the inverter are found to be defective, replace the defective component(s) of both devices.
[ IX Troubleshooting ] Error display/failure condition Measure/inspection item [1] Inverter related errors 4250, 4255, 4220, 4225, 4230, 4240,4260, 5301, 0403 Check the details of the inverter error in the error log at X LED Monitor Display on the Outdoor Unit Board. Take appropriate measures to the error code and the error details in accordance with IX [2] Responding to Error Display on the Remote Controller.
[ IX Troubleshooting ] (2) Inverter output related troubles Items to be checked [1] Check the INV board error detection circuit. Phenomena Remedy (1) Disconnect the invert- 1) er output wire from the terminals of the INV board (SC-U, SC-V, SC-W). Overcurrent error (4250 Detail code No. 101, 104, 105, 106, and 107) Replace the INV board. (2) Put the outdoor unit into operation. 2) Logic error (4220 Detail code No. 111) Replace the INV board. 3) ACCT sensor circuit failure (5301 Detail code No.
[ IX Troubleshooting ] Items to be checked [4] Check whether the inverter is damaged. (During compressor operation) Put the outdoor unit into operation. Check the inverter output voltage after the inverter output frequency has stabilized. Phenomena 1) Overcurrent-related problems occur immediately after compressor startup. Error code : 4250 Detail code : 101, 106, 107 Remedy a. Check items [1] through [3] for problems. b. Check that high and low pressures are balanced. c.
[ IX Troubleshooting ] (3) Trouble treatment when the main power breaker is tripped Items to be checked Phenomena Remedy [1] Check the breaker capacity. Use of a non-specified breaker Replace it with a specified breaker. [2] Perform Meg check between the terminals on the power terminal block TB1. Zero to several ohm, or Meg failure [3] Turn on the power again and check again. 1) Main power breaker trip Check each part and wiring.
[ IX Troubleshooting ] (5) Simple checking procedure for individual components of main inverter circuit Before inspecting the inside of the control box, turn off the power, keep the unit off for at least 10 minutes, and confirm that the voltage between FT-P and FT-N on INV Board has dropped to DC20V or less. Part name IGBT module Judgment method See "Troubleshooting for IGBT Module ".
[ IX Troubleshooting ] Judgment value (reference) Black ( + ) Red (-) SC-P1 FT-N SC-P1 - - FT-N - - SC-L1 SC-L2 SC-L3 5 - 200 ohm 5 - 200 ohm 5 - 200 ohm SC-L1 5 - 200 ohm - - - SC-L2 5 - 200 ohm - - - SC-L3 5 - 200 ohm - - - SC-V SC-W Black ( + ) Red (-) SC-P2 FT-N SC-P2 - - FT-N - - SC-U 5 - 200 ohm 5 - 200 ohm 5 - 200 ohm SC-U 5 - 200 ohm - - - SC-V 5 - 200 ohm - - - SC-W 5 - 200 ohm - - - INV board external diagram SC-P2 SC-P1 FT-N SC-V SC
[ IX Troubleshooting ] Control Circuit -8- Control Circuit (1) Control power source function block Power source system (AC 380 / 415 V) Control system (DC 5 ~ 30 V) INV board Rectifier Noise filter Noise filter Fuse Fuse 72C DCL Smoothing capacitor Inverter drive circuit 17V Power supply Microcomputer 5 V Power supply Fan board Control board Fuse Relay, LEV Drive circuit 72C, LEV Compressor Rectifier Surge protection Solenoid valve 4-way valve CH11 Inverter Inverter Inverter reset circ
[ IX Troubleshooting ] (2) Troubleshooting transmission power circuit of outdoor unit Check the voltage at the indoor/outdoor transmission terminal block (TB3) of outdoor unit. DC 24 ~ 30 V YES Check whether the transmission line is disconnected, check for contact failure, and repair the problem. NO Check the voltage at TB3 after removing transmission line from TB3. DC 24 ~ 30 V YES Check if the indoor/outdoor transmission line is not short-circuited, and repair the problem.
[ IX Troubleshooting ] [5] Refrigerant Leak 1. Leak spot: In the case of extension pipe for indoor unit (Cooling season) 1) Mount a pressure gauge on the service check joint (CJ2) on the low-pressure side. 2) Stop all the indoor units, and close the high-pressure side refrigerant service valve (BV2) on the outdoor unit while the compressor is being stopped. 3) Stop all the indoor units; turn on SW2-4 on the outdoor unit control board while the compressor is being stopped.
[ IX Troubleshooting ] 3. (1) 1) 2) 3) Leak spot: In the case of extension pipe for indoor unit (Heating season) Run all the indoor units in heating test run mode. To run the indoor unit in test run mode, turn SW3-2 from ON to OFF when SW3-1 on the outdoor control board is ON. Change the setting of the remote controller for all the indoor units to the heating mode. Check that all the indoor units are performing a heating operation. (2) Stop all the indoor units, and stop the compressor.
[ IX Troubleshooting ] [6] Compressor Replacement Instructions 1. Compressor Replacement Instructions [Compressor replacement procedures] Follow the procedures below (Steps 1 through 5) to remove the compressor components and replace the compressor. Reassemble them in the reverse order after replacing the compressor. Service panel Control box Compressor cover (front) 1. Remove both the top and bottom service panels (front panels). 2. Remove the control box and the compressor cover (front).
[ IX Troubleshooting ] Compressor covers (right and left) (The inside of the compressor cover is lined with sound insulation material.) Compressor cover (top) Belt heater 4. Remove the compressor cover (top). 5. Remove the compressor wires, compressor covers (right and left), and belt heater. Protection for the sealing material Suction piping Protection for the compressor cover 6.
[ IX Troubleshooting ] 1. Solenoid valve block ASSY (SV4a, SV4b, SV4d), Check valve (CV4a, CV6a, CV8a, CV9a, CV10a) replacement instructions * Following instructions show procedures for replacing service parts for Solenoid valve block ASSY (SV4a, SV4b, SV4d), Check valve (CV4a, CV6a, CV8a, CV9a, CV10a). Replace them properly according to the procedures. 1. Applicable models • PURY-P200, 250, 300YJM-A (-BS) • PURY-EP200YJM-A (-BS) 2.
[ IX Troubleshooting ] 2) Remove the control box. 1) Remove the upper and lower service panels (Panel FU and FB). 3) Remove the cable that is fixed to the Frame ASSY MU (upper) and MB (lower), and remove the Frame ASSY MU and MB. ④⑦ Brazing or debrazing pipes ① Coil cover, ④⑦ B ④⑦ C Solenoid valve coil (ø15.88 [5/8"]) (ø19.05 [3/8"]) (SV4a,SV4b,SV4d) D (ø28.6 [1-1/8"]), E (ø9.52 [3/8"]), F (ø9.
[ IX Troubleshooting ] (2) Check valve (CV4a, CV6a, CV8a, CV9a, CV10a) replacement procedures Remove the Solenoid valve block ASSY following "(1) Solenoid valve block ASSY (SV4a, SV4b, SV4d) replacement procedures" on the front page. Debraze H-M parts (total 6 places), and remove the Check valve ASSY. Replace the Check valve (CV4a, CV6a, CV8a, CV9a, CV10a) to be serviced while it is removed from the unit.
[ IX Troubleshooting ] Detailed View of Part A ②③ Brazing or debrazing pipes L (ø15.88 [5/8"]) ③ Check valve replacement M (ø28.6 [1-1/8"]) M L 2 (ø15.88 [5/8"]) CV4a 1 (ø28.6 [1-1/8"]) CV6a H 7 (ø15.88 [5/8"]) When replacing CV6a: Remove the brazing 2. 3 (ø15.88 [5/8"]) 5 (ø15.88 [5/8"]) When replacing CV8a: Remove the brazing 3 and 4. I CV10a CV9a 8 (ø15.88 [5/8"]) When replacing CV9a: Remove the brazing 5 CV8a and 6. 6 (ø15.88 [5/8"]) 4 (ø15.
[ IX Troubleshooting ] 2. Solenoid valve block ASSY (SV4a, SV4b, SV4c, SV4d), Check valve (CV4a, CV6a, CV8a, CV9a, CV10a) replacement instructions * Following instructions show procedures for replacing service parts for Solenoid valve block ASSY (SV4a, SV4b, SV4c, SV4d), Check valve (CV4a, CV6a, CV8a, CV9a, CV10a). Replace them properly according to the procedures. 1. Applicable models • PURY-P350, 400YJM-A (-BS) • PURY-EP250, 300YJM-A (-BS) 2.
[ IX Troubleshooting ] 2) Remove the control box and the partition plate. 1) Remove the upper and lower service panels (Panel FU and FB). 3) Remove the cable that is fixed to the Frame ASSY MU (upper) and MB (lower), and remove the Frame ASSY MU and MB. ④⑦ B (ø19.05 [3/4"]) ① Coil cover, Solenoid valve coil (SV4a,SV4b,SV4c,SV4d) ④⑦ C (ø15.88 [5/8"]) ④⑦ Brazing or debrazing pipes ⑤ Removing Solenoid valve block ASSY F B (ø9.52 [3/8"]) E (ø28.6 [1-1/8"]) E F C D H H G (ø9.
[ IX Troubleshooting ] (2) Check valve (CV4a, CV6a, CV8a, CV9a, CV10a) replacement procedures ① Remove the solenoid valve block ASSY following "(1) Solenoid valve block ASSY (SV4a, SV4b, SV4d) replacement procedures" on the front page. ② Debraze I-O parts (total 7 places), and remove the Check valve ASSY. ③ Replace the Check valve (CV4a, CV6a, CV8a, CV9a, CV10a) to be serviced while it is removed from the unit.
[ IX Troubleshooting ] Detailed View of Part A ②③Brazing or debrazing pipes N (ø15.88 [5/8"]) ③Check valve replacement O (ø28.6 [1-1/8"]) I When replacing CV4a: Remove the brazing 1. O 2 CV6a (ø15.88 [5/8"]) N CV4a When replacing CV6a: Remove the brazing 2. 1 (ø28.6 [1-1/8"]) 5 (ø22.2 [7/8"]) J 7 (ø15.88 [5/8"]) When replacing CV8a: Remove the brazing 3 and 4. 3 (ø28.6 [1-1/8"]) CV8a CV10a K CV9a 8 (ø15.88 [5/8"]) 6 (ø22.2 [7/8"]) 4 (ø28.
[ IX Troubleshooting ] 3. Solenoid valve block ASSY (SV4a, SV4b, SV4d), Check valve (CV4a, CV6a, CV8a, CV9a) replacement instructions * Following instructions show procedures for replacing service parts for Solenoid valve block ASSY (SV4a, SV4b, SV4d), Check valve (CV4a, CV6a, CV8a, CV9a). Replace them properly according to the procedures. 1. Applicable models • PURY-P450YJM-A (-BS) • PURY-EP350YJM-A (-BS) 2.
[ IX Troubleshooting ] 2) Remove the control box. 3) Remove the cable from the Frame ASSY MU (top) and MB (bottom), and remove the Frame ASSY MU and MB. 1) Remove the upper and lower service panels (Panel FU and FB). Coil cover, A Solenoid valve coil (ø19.05[3/4"]) (SV4a,SV4b,SV4d) B (ø15.88[5/8"]) Brazing or debrazing pipes D E C (ø9.52[3/8"]) (ø15.88[5/8"]) (ø28.58[1-1/8"]) Debrazing pipe Remove the pipe from the brazed pant labeled H. G (ø9.52[3/8"]) H (ø15.
[ IX Troubleshooting ] (2) Check valve (CV4a, CV6a, CV8a, CV9a) replacement procedures 1 Remove the solenoid valve block ASSY following "(1) Solenoid valve block ASSY (SV4a, SV4b, SV4d) replacement procedures" on the front page. 2 Debraze I-M parts (total 5 places), and remove the Check valve ASSY. 3 Replace the Check valve (CV4a, CV6a, CV8a, CV9a) to be serviced while it is removed from the unit.
[ IX Troubleshooting ] Detailed View of Part A 3 Check valve replacement K I J CV6a CV4a 2 (ø15.88[5/8”]) L When replacing CV4a: Remove the brazing 1. When replacing CV6a: Remove the brazing 2. 1 (ø22.2[7/8”]) When replacing CV8a: Remove the brazing 3 and 4. 3 (ø22.2[7/8”]) When replacing CV9a: Remove the brazing 5 and 6. 5 CV8a (ø22.2[7/8”]) M CV9a 4 (ø22.2[7/8”]) 6 (ø22.
[ IX Troubleshooting ] 4. Solenoid valve (SV1a), Capillary tube ASSY (CP1) replacement instructions 1. Applicable models PURY-P200, 250, 300YJM-A (-BS), PURY-EP200YJM-A (-BS) ……Low pressure twinning kit (optional accessory) is built in. * The parts can be replaced without removing the Solenoid valve ASSY on the unit for the units that do not have built-in low pressure twinning kit (optional accessory). 2. Parts to be serviced NO.
[ IX Troubleshooting ] [7] Servicing the BC controller 1. Service panel *Special care must be taken when replacing heavy parts. Work procedure Explanatory figure 1) Remove the two lock nuts on the control box, loosen the other two, and remove the control box. 2) Remove the three fixing screws on the service panel, and remove the service panel. 3) Remove the nine machine screws on the ceiling panel, and remove the ceiling panel. Service panel Loosen Ceiling panel Control Box 2.
[ IX Troubleshooting ] 3. Thermistor (liquid pipe/gas pipe temperature detection) *Special care must be taken when replacing heavy parts. Work procedure (1) 1) 2) (2) 1) 2) (3) (4) Explanatory figure Remove the service panel. For TH11, TH12, and TH15, refer to 1. 1), 2). For TH16, refer to 1. 1), 2), 3). (GA1 type only) Remove the lead wire of the piping sensor from the control board.
[ IX Troubleshooting ] 5. LEV Work procedure Explanatory figure (1) Remove the service panel. (See figure at right.) (2) Replace the LEV in trouble. LEV3 Secure enough service space in the ceiling for welding operation, and conduct the work carefully.If required, dismount the unit from the ceiling, and conduct the work. LEV1 SVM2 SVM2b 6. Solenoid valve *Special care must be taken when replacing heavy parts. Work procedure Explanatory figure (1) Remove the service panel. (See figure at right.
[ IX Troubleshooting ] [8] Troubleshooting Using the Outdoor Unit LED Error Display If the LED error display appear as follows while all the SW1 switches are set to OFF, check the items under the applicable item numbers below. 1. Error code appears on the LED display. Refer to IX [2] Responding to Error Display on the Remote Controller.(page 228) 2. LED is blank. Take the following troubleshooting steps.
X LED Monitor Display on the Outdoor Unit Board [1] How to Read the LED on the Service Monitor ...............................................................
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[ X LED Monitor Display on the Outdoor Unit Board ] X LED Monitor Display on the Outdoor Unit Board [1] How to Read the LED on the Service Monitor 1. How to read the LED By setting the DIP SW 1-1 through 1-10 (Switch number 10 is represented by 0), the operating condition of the unit can be monitored on the service monitor. (Refer to the table on the following pages for DIP SW settings.) The service monitor uses 4-digit 7-segment LED to display numerical values and other types of information.
[ X LED Monitor Display on the Outdoor Unit Board ] 3. Time data storage function The outdoor unit has a simple clock function that enables the unit to calculate the current time with an internal timer by receiving the time set by the system controller, such as G(B)-50A. If an error (including a preliminary error) occurs, the error history data and the error detection time are stored into the service memory.
HWE10050 - 357 - 0110000000 1110000000 0001000000 1001000000 0101000000 6 7 8 9 10 Bottom Top Bottom Top LD4 72C LD5 LD6 SV5c SV5b SV1a 0000 to 9999 SV4c 21S4b CH11 SV4d 0000 to 9999 (Address and error codes highlighted) 0000 to 9999 (Address and error codes highlighted) 0000 to 9999 (Address and error codes highlighted) LD3 Contact point demand capacity Emergency operation SV4b LD2 0000 to 9999 Retry operation SV4a 21S4a Comp in operation LD1 Communication demand ca
HWE10050 - 358 - 0011000000 1011000000 0111000000 1111000000 0000100000 1000100000 0100100000 1100100000 0010100000 1010100000 0110100000 1110100000 12 13 14 15 16 17 18 19 20 21 22 23 Indoor unit Operation mode Indoor unit check Unit No. 49 Top Bottom Unit No. 41 Unit No. 33 Top Bottom Unit No. 25 Top Bottom Unit No. 9 Unit No. 17 Bottom Top Unit No. 1 Unit No. 49 Top Bottom Unit No. 41 Unit No. 33 Top Bottom Unit No. 25 Unit No. 17 Top Bottom Unit No.
HWE10050 - 359 - 0010010000 1010010000 0110010000 1110010000 0001010000 1001010000 0101010000 1101010000 0011010000 37 38 39 40 41 42 43 44 Outdoor unit control mode Outdoor unit Operation mode Stop Permissible stop Cooling-only ON Unit No. 49 Top Bottom Unit No. 41 Unit No. 33 Top Bottom Unit No. 25 Bottom Unit No. 17 Top Unit No. 1 Unit No.
HWE10050 - 360 - 1111110000 0000001000 1000001000 0100001000 1100001000 0010001000 1010001000 0110001000 1110001000 63 64 65 66 67 68 69 70 71 LD5 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 LD4 -99.9 to 999.9 LD3 Low-pressure sensor data LD2 -99.9 to 999.9 LD1 Display High-pressure sensor data THHS1 TH5 TH6 TH7 TH3 TH4 Item *1 A: The condition of either OC or OS is displayed individually.
HWE10050 - 361 - 0101101000 1101101000 0011101000 1011101000 90 91 92 93 LD5 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.
HWE10050 - 362 - 1111101000 0000011000 1000011000 0100011000 1100011000 0010011000 1010011000 0110011000 1110011000 0001011000 1001011000 0101011000 1101011000 0011011000 1011011000 0111011000 1111011000 0000111000 1000111000 0100111000 1100111000 0010111000 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 LD5 0000 to 9999 LD4 Number of times the unit went into the mode to remedy wet vapor suction COMP bus voltage 0000 to 9999
HWE10050 - 363 - 1000000100 0100000100 1100000100 129 130 131 High-pressure during defrost cycle Integrated operation time of compressor (for rotation purpose) 0000 to 9999 0000 to 9999 Abnormal Td rise COMP number of startstop events Lower 4 digits Low-pressure drop 0000 to 9999 High-pressure drop LD5 COMP number of startstop events Upper 4 digits Backup mode Abnormal pressure rise LD4 0000 to 9999 LD3 COMP Operation time Lower 4 digits LD2 0000 to 9999 LD1 Display COMP Operation
HWE10050 - 364 - 1010000100 0110000100 1110000100 0001000100 1001000100 0101000100 1101000100 0011000100 1011000100 0111000100 133 134 135 136 137 138 139 140 141 142 Relay output display BC(Sub1) Relay output display BC(Main) SVA15 SVA13 Top Bottom SVA11 SVA9 Top Bottom SVA7 SVA5 Top Bottom SVA3 SVA1 Bottom Top SVA15 SVA13 Top Bottom SVA11 SVA9 Top Bottom SVA7 SVA5 Top Bottom SVA3 SVA1 SVM1 LD1 Bottom Top Bottom Top Item SVB15 SVB13 SVB11 SVB9
HWE10050 - 365 - 0000100100 1000100100 0100100100 1100100100 0010100100 1010100100 0110100100 1110100100 0001100100 1001100100 0101100100 1101100100 0011100100 1011100100 0111100100 1111100100 0000010100 1000010100 0100010100 1100010100 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 SVB16 SVB14 SVB12 SVB10 SVB8 SVB6 SVB4 SVB2 LD5 -99.9 to 999.9 -99.9 to 999.9 BC(Main)SH13 BC(Main)SC16 0000 to 2000 -99.9 to 999.
HWE10050 1101010100 0011010100 1011010100 0111010100 171 172 173 174 - 366 - LD4 LD5 BC(Main)LEV2 BC(Sub2)LEV3 0000 to 2000 0000 to 2000 -99.9 to 999.9 LD3 -99.9 to 999.9 LD2 BC(Sub2)TH25 LD1 Display BC(Sub2)TH12 Item *1 A: The condition of either OC or OS is displayed individually. B: The condition of the entire refrigerant system is displayed.
HWE10050 - 367 - 0010001100 1010001100 0110001100 1110001100 0001001100 196 197 198 199 200 LD5 0000 to 9999 Error details of inverter (0001-0120) 0000 to 9999 Error details of inverter (0001-0120) 0000 to 9999 Error details of inverter (0001-0120) 0000 to 9999 Error details of inverter (0001-0120) 0000 to 9999 Error details of inverter (0001-0120) 0000 to 9999 Error details of inverter (0001-0120) 0000 to 9999 Error details of inverter (0001-0120) 0000 to 9999 Error details of i
HWE10050 - 368 - 0010101100 1010101100 0110101100 1110101100 212 213 214 215 Relay output display 3 Lighting Relay output display 2 Lighting Bottom Top Bottom Top Relay output display 1 Lighting Outdoor unit control mode Outdoor unit Operation mode BC operation mode OC/OS identification Outdoor unit operation status Item SV4a 21S4a Comp in operation Stop Permissible stop Cooling-only ON BC operation signal LD1 SV4b Refrigerant recovery Thermo OFF Standby Cooling-only OFF
HWE10050 - 369 - 0101011100 1101011100 0011011100 1011011100 0111011100 1111011100 0000111100 1000111100 0100111100 234 235 236 237 238 239 240 241 242 LD5 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 LD4 -99.9 to 999.9 LD3 Low-pressure sensor data LD2 -99.9 to 999.9 LD1 Display High-pressure sensor data THHS1 TH5 TH6 TH7 TH3 TH4 Item *1 A: The condition of either OC or OS is displayed individually.
HWE10050 - 370 - 1010000010 0110000010 1110000010 0001000010 1001000010 0101000010 1101000010 261 262 263 264 265 266 267 LD5 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.
HWE10050 - 371 - 0111100010 1111100010 0000010010 1000010010 0100010010 1100010010 0010010010 1010010010 286 287 288 289 290 291 292 293 LD5 00.0 to 999.9 LD4 0000 to 9999 LD3 COMP Operation time Lower 4 digits LD2 0000 to 9999 LD1 Display COMP Operation time Upper 4 digits COMP bus voltage Item *1 A: The condition of either OC or OS is displayed individually. B: The condition of the entire refrigerant system is displayed.
HWE10050 1110010010 0001010010 1001010010 0101010010 1101010010 0011010010 295 296 297 298 299 300 LD4 LD5 Integrated operation time of compressor (for rotation purpose) 0000 to 9999 0000 to 9999 LD3 COMP number of startstop events Lower 4 digits LD2 0000 to 9999 LD1 Display COMP number of startstop events Upper 4 digits Item *1 A: The condition of either OC or OS is displayed individually. B: The condition of the entire refrigerant system is displayed.
HWE10050 - 373 - 0111010010 1111010010 0000110010 1000110010 0100110010 1100110010 0010110010 1010110010 0110110010 1110110010 0001110010 1001110010 0101110010 1101110010 0011110010 1011110010 0111110010 1111110010 0000001010 1000001010 0100001010 1100001010 0010001010 1010001010 0110001010 1110001010 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 BC(Main)PS3 BC(Main)PS1 BC(Main)TH16 BC(Main)TH1
HWE10050 - 374 - 0101101010 1101101010 0011101010 1011101010 0111101010 346 347 348 349 350 BC(Main)LEV2 BC(Sub2)LEV3 BC(Sub2)TH25 BC(Sub2)TH12 BC(Sub1)LEV3 BC(Sub1)TH15 BC(Sub1)TH12 BC(Main)LEV3 BC(Main)LEV1 Item LD1 LD2 LD3 LD5 0000 to 2000 0000 to 2000 -99.9 to 999.9 -99.9 to 999.9 0000 to 2000 -99.9 to 999.9 -99.9 to 999.9 0000 to 2000 0000 to 2000 LD4 Display *1 A: The condition of either OC or OS is displayed individually.
HWE10050 - 375 - 0000011010 1000011010 0100011010 1100011010 0010011010 1010011010 0110011010 1110011010 0001011010 1001011010 0101011010 1101011010 0011011010 1011011010 0111011010 1111011010 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 IC17 Address/capacity code IC16 Address/capacity code IC15 Address/capacity code IC14 Address/capacity code IC13 Address/capacity code IC12 Address/capacity code IC11 Address/capacity code IC10 Address/capacity cod
HWE10050 - 376 - 0100000110 1100000110 0010000110 1010000110 0110000110 1110000110 0001000110 1001000110 0101000110 1101000110 386 387 388 389 390 391 392 393 394 395 IC45 Address/capacity code IC44 Address/capacity code IC43 Address/capacity code IC42 Address/capacity code IC41 Address/capacity code IC40 Address/capacity code IC39 Address/capacity code IC38 Address/capacity code IC37 Address/capacity code IC36 Address/capacity code IC35 Address/capacity code IC34 Address/ca
HWE10050 0010100110 1010100110 0110100110 1110100110 404 405 406 407 - 377 - IC4 Suction temperature IC3 Suction temperature IC2 Suction temperature IC1 Suction temperature IC50 Address/capacity code IC49 Address/capacity code IC48 Address/capacity code IC47 Address/capacity code IC46 Address/capacity code Item LD1 LD3 0000 to 9999 0000 to 9999 0000 to 9999 0000 to 9999 0000 to 9999 LD2 LD5 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.
HWE10050 - 378 - 0111010110 1111010110 0000110110 1000110110 0100110110 1100110110 430 431 432 433 434 435 IC28 Suction temperature IC27 Suction temperature IC26 Suction temperature IC25 Suction temperature IC24 Suction temperature IC23 Suction temperature IC22 Suction temperature IC21 Suction temperature IC20 Suction temperature IC19 Suction temperature IC18 Suction temperature IC17 Suction temperature IC16 Suction temperature IC15 Suction temperature IC14 Suction temperature I
HWE10050 - 379 - 0110001110 1110001110 0001001110 1001001110 0101001110 1101001110 0011001110 1011001110 0111001110 1111001110 454 455 456 457 458 459 460 461 462 463 IC6 Liquid pipe temperature IC5 Liquid pipe temperature IC4 Liquid pipe temperature IC3 Liquid pipe temperature IC2 Liquid pipe temperature IC1 Liquid pipe temperature IC50 Suction temperature IC49 Suction temperature IC48 Suction temperature IC47 Suction temperature IC46 Suction temperature IC45 Suction temper
HWE10050 - 380 - 0100011110 1100011110 0010011110 1010011110 0110011110 1110011110 0001011110 1001011110 0101011110 1101011110 482 483 484 485 486 487 488 489 490 491 IC34 Liquid pipe temperature IC33 Liquid pipe temperature IC32 Liquid pipe temperature IC31 Liquid pipe temperature IC30 Liquid pipe temperature IC29 Liquid pipe temperature IC28 Liquid pipe temperature IC27 Liquid pipe temperature IC26 Liquid pipe temperature IC25 Liquid pipe temperature IC24 Liquid pipe temper
HWE10050 - 381 - 0111111110 1111111110 510 511 IC50 Liquid pipe temperature IC49 Liquid pipe temperature IC48 Liquid pipe temperature IC47 Liquid pipe temperature IC46 Liquid pipe temperature IC45 Liquid pipe temperature IC44 Liquid pipe temperature IC43 Liquid pipe temperature IC42 Liquid pipe temperature IC41 Liquid pipe temperature IC40 Liquid pipe temperature IC39 Liquid pipe temperature IC38 Liquid pipe temperature IC37 Liquid pipe temperature IC36 Liquid pipe temperature IC35 Liqu
HWE10050 0001000001 1001000001 0101000001 520 521 522 OC address Version/Capacity OS address BC/BS/TU address RC address IC/FU address Self-address Item LD1 LD4 LD5 LD6 Count-up display of number of connected units Count-up display of number of connected units Count-up display of number of connected units Count-up display of number of connected units Alternate display of self address and unit model LD3 LD7 OC address display S/W version -> Refrigerant type -> Model and capacity ->
HWE10050 - 383 - 0011000001 1011000001 0111000001 1111000001 0000100001 1000100001 0100100001 1100100001 0010100001 1010100001 0110100001 1110100001 0001100001 1001100001 0101100001 1101100001 0011100001 1011100001 0111100001 1111100001 0000010001 1000010001 0100010001 1100010001 0010010001 1010010001 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 IC27 Gas pipe temperature IC26 Gas pipe temperatur
HWE10050 - 384 - 1110010001 0001010001 1001010001 0101010001 1101010001 0011010001 1011010001 0111010001 1111010001 0000110001 1000110001 0100110001 1100110001 0010110001 1010110001 0110110001 1110110001 0001110001 1001110001 0101110001 1101110001 0011110001 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 IC50 Gas pipe temperature IC49 Gas pipe temperature IC48 Gas pipe temperature IC47 Gas pipe temperature IC46 Gas pi
HWE10050 - 385 - 0111110001 1111110001 0000001001 1000001001 0100001001 1100001001 0010001001 1010001001 0110001001 1110001001 0001001001 1001001001 0101001001 1101001001 0011001001 1011001001 0111001001 1111001001 0000101001 1000101001 0100101001 1100101001 0010101001 1010101001 0110101001 1110101001 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 IC27SH IC26SH IC25SH IC24SH IC23SH IC22SH IC2
HWE10050 - 386 - 0101011001 1101011001 0011011001 1011011001 0111011001 618 619 620 621 622 IC50SH IC49SH IC48SH IC47SH IC46SH IC45SH IC44SH IC43SH IC42SH IC41SH IC40SH IC39SH IC38SH IC37SH IC36SH IC35SH IC34SH IC33SH IC32SH IC31SH IC30SH IC29SH IC28SH Item LD1 LD2 LD3 LD5 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.
HWE10050 - 387 - 0000111001 1000111001 0100111001 1100111001 0010111001 1010111001 0110111001 1110111001 0001111001 1001111001 0101111001 1101111001 0011111001 1011111001 0111111001 1111111001 0000000101 1000000101 0100000101 1100000101 0010000101 1010000101 0110000101 1110000101 0001000101 1001000101 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 IC27SC IC26SC IC25SC IC24SC IC23SC IC22SC IC2
HWE10050 - 388 - 0011100101 1011100101 0111100101 1111100101 0000010101 1000010101 0100010101 1100010101 668 669 670 671 672 673 674 675 IC28SC IC50SC IC49SC IC48SC IC47SC IC46SC IC45SC IC44SC IC43SC IC42SC IC41SC IC40SC IC39SC IC38SC IC37SC IC36SC IC35SC IC34SC IC33SC IC32SC IC31SC IC30SC IC29SC Item LD1 LD2 LD3 LD5 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.9 -99.9 to 999.
HWE10050 1010010101 0110010101 1110010101 0001010101 1001010101 0101010101 1101010101 0011010101 1011010101 0111010101 1111010101 677 678 679 680 681 682 683 684 685 686 687 Fan board S/W version INV board S/W version Item LD1 LD2 LD3 LD5 0.00 to 99.99 0.00 to 99.99 LD4 Display *1 A: The condition of either OC or OS is displayed individually. B: The condition of the entire refrigerant system is displayed. 0010010101 1234567890 SW1 676 No.
HWE10050 - 390 - Time of error detection 6-2 Time of error detection 6 Time of error detection 5-2 Time of error detection 5 Time of error detection 4-2 Time of error detection 4 Time of error detection 3-2 Time of error detection 3 Time of error detection 2-2 Time of error detection 2 Time of error detection 1-2 Time of error detection 1 Current time -2 Current time Item LD1 LD2 LD3 LD5 00.00 to 99.12/1 to 31 00:00 to 23:59 00.00 to 99.12/1 to 31 00:00 to 23:59 00.00 to 99.
HWE10050 0010001101 1010001101 0110001101 708 709 710 - 391 - Time of last data backup before error -2 Time of last data backup before error Time of error detection 10-2 Time of error detection 10 Time of error detection 9-2 Time of error detection 9 Time of error detection 8-2 Time of error detection 8 Time of error detection 7-2 Time of error detection 7 Item LD1 LD2 LD3 LD5 00.00 to 99.12/1 to 31 00:00 to 23:59 00.00 to 99.12/1 to 31 00:00 to 23:59 00.00 to 99.
HWE10050 - 392 - 1101001101 0011001101 1011001101 0111001101 1111001101 0000101101 1000101101 0100101101 1100101101 0010101101 1010101101 0110101101 1110101101 0001101101 1001101101 0101101101 1101101101 0011101101 1011101101 0111101101 1111101101 0000011101 1000011101 0100011101 1100011101 0010011101 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 IC27 LEV opening IC26 LEV opening IC25 LEV openin
HWE10050 - 393 - IC5 Operation mode IC4 Operation mode IC3Operation mode IC2 Operation mode IC1 Operation mode IC50 LEV opening IC49 LEV opening IC48 LEV opening IC47 LEV opening IC46 LEV opening IC45 LEV opening IC44 LEV opening IC43 LEV opening IC42 LEV opening IC41 LEV opening IC40 LEV opening IC39 LEV opening IC38 LEV opening IC37 LEV opening IC36 LEV opening IC35 LEV opening IC34 LEV opening IC33 LEV opening IC32 LEV opening IC31 LEV opening IC30 LEV opening IC29 LEV opening
HWE10050 - 394 - 1100100011 0010100011 1010100011 0110100011 1110100011 0001100011 1001100011 0101100011 1101100011 0011100011 787 788 789 790 791 792 793 794 795 796 IC33 Operation mode IC32 Operation mode IC31 Operation mode IC30 Operation mode IC29 Operation mode IC28 Operation mode IC27 Operation mode IC26 Operation mode IC25 Operation mode IC24 Operation mode IC23 Operation mode IC22 Operation mode IC21 Operation mode IC20 Operation mode IC19 Operation mode IC18 Ope
HWE10050 - 395 - 1111010011 0000110011 1000110011 0100110011 1100110011 0010110011 1010110011 0110110011 1110110011 0001110011 815 816 817 818 819 820 821 822 823 824 IC11 filter IC10 filter IC9 filter IC8 filter IC7 filter IC6 filter IC5 filter IC4 filter IC3 filter IC2 filter IC1 filter IC50 Operation mode IC49 Operation mode IC48 Operation mode IC47 Operation mode IC46 Operation mode IC45 Operation mode IC44 Operation mode IC43 Operation mode IC42 Operation mode
HWE10050 - 396 - 1101001011 0011001011 1011001011 0111001001 1111001011 0000101011 1000101011 0100101011 1100101011 0010101011 843 844 845 846 847 848 849 850 851 852 IC39 filter IC38 filter IC37 filter IC36 filter IC35 filter IC34 filter IC33 filter IC32 filter IC31 filter IC30 filter IC29 filter IC28 filter IC27 filter IC26 filter IC25 filter IC24 filter IC23 filter IC22 filter IC21 filter IC20 filter IC19 filter IC18 filter IC17 filter IC16 filter IC15 filter
HWE10050 1110101011 0001101011 1001101011 0101101011 1101101011 0011101011 1011101011 0111101011 1111101011 855 856 857 858 859 860 861 862 863 IC50 filter IC49 filter IC48 filter IC47 filter IC46 filter IC45 filter IC44 filter IC43 filter IC42 filter IC41 filter IC40 filter Item LD1 LD2 LD3 LD5 0000 to 9999 0000 to 9999 0000 to 9999 0000 to 9999 0000 to 9999 0000 to 9999 0000 to 9999 0000 to 9999 0000 to 9999 0000 to 9999 0000 to 9999 LD4 Display *1 A: The co
HWE10050 - 398 - 1111011011 0000111011 1000111011 0100111011 1100111011 0010111011 1010111011 0110111011 880 881 882 883 884 885 886 0 to 254 0 to 254 INV board Reset counter Fan board Reset counter 0 to 254 Control board Reset counter -99.9 to 999.9 LD5 Power factor phase angle 1 LD4 -99.9 to 999.9 LD3 W-phase current effective value 1 LD2 -99.9 to 999.9 LD1 Display U-phase current effective value 1 Item *1 A: The condition of either OC or OS is displayed individually.
HWE10050 - 399 - 1001000111 0101000111 1101000111 0011111111 1011111111 0111111111 1111111111 905 906 907 1020 1021 1022 1023 Item LD1 LD2 LD3 LD4 Display LD5 *1 A: The condition of either OC or OS is displayed individually. B: The condition of the entire refrigerant system is displayed.
