SiBE341027 Heat Pump R-410A 50Hz RQYQ8-48PY1B
SiBE341027 Heat Pump R-410A 50Hz 1. Introduction ............................................................................................ iv 1.1 Safety Cautions ....................................................................................... iv 1.2 Used Icons ............................................................................................ viii 1.3 Preface ....................................................................................................
SiBE341027 1.1 Operation Mode......................................................................................43 2. Detailed Control Functions....................................................................44 2.1 2.2 2.3 2.4 2.5 2.6 Stop Operation .......................................................................................44 Standby ..................................................................................................44 Startup Control .....................................
SiBE341027 2.30 2.31 2.32 2.33 2.34 2.35 2.36 2.37 2.38 2.39 2.40 2.41 2.42 2.43 Reverse Phase, Open Phase...............................................................151 Power Supply Insufficient or Instantaneous Failure .............................152 Check Operation is not Executed.........................................................155 Transmission Error (between Indoor and Outdoor Units).....................156 Transmission Error (between Remote Controller and Indoor Unit) ......
SiBE341027 Introduction 1. Introduction 1.1 Safety Cautions Cautions and Warnings Be sure to read the following safety cautions before conducting repair work. Warning” and “ Caution”. The “ The caution items are classified into “ Warning” items are especially important since they can lead to death or serious injury if they are not followed closely. The “ Caution” items can also lead to serious accidents under some conditions if they are not followed.
Introduction SiBE341027 Warning Be sure to wear a safety helmet, gloves, and a safety belt when working at a high place (more than 2 m). Insufficient safety measures may cause a fall accident. In case of R-410A refrigerant models, be sure to use pipes, flare nuts and tools for the exclusive use of the R-410A refrigerant. The use of materials for R-22 refrigerant models may cause a serious accident such as a damage of refrigerant cycle as well as an equipment failure.
SiBE341027 Introduction 1.1.2 Cautions Regarding Safety of Users Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work. Never attempt to modify the equipment. The use of inappropriate parts or tools may cause an electrical shock, excessive heat generation or fire. If the power cable and lead wires have scratches or deteriorated, be sure to replace them.
Introduction SiBE341027 Warning Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet securely. If the plug has dust or loose connection, it may cause an electrical shock or fire. Be sure to install the product correctly by using the provided standard For unitary type installation frame. only Incorrect use of the installation frame and improper installation may cause the equipment to fall, resulting in injury.
SiBE341027 Introduction Caution Be sure to measure the insulation resistance after the repair, and make sure that the resistance is 1 MΩ or higher. Defective insulation may cause an electrical shock. Be sure to check the drainage of the indoor unit after the repair. Defective drainage may cause the water to enter the room and wet the furniture and floor. Do not tilt the unit when removing it. The water inside the unit may spill and wet the furniture and floor.
Introduction 1.3 SiBE341027 Preface Thank you for your continued patronage of Daikin products. This is the new service manual for Daikin's Year 2011 VRVIII-Q series Heat Pump System. Daikin offers a wide range of models to respond to building and office air conditioning needs. We are confident that customers will be able to find the models that best suit their needs. This service manual contains information regarding the servicing of VRVIII-Q series R-410A Heat Pump System.
SiBE341027 Part 1 General Information 1. Model Names of Indoor / Outdoor Units..................................................2 1.1 Indoor Units ..............................................................................................2 1.2 Outdoor Units ...........................................................................................3 1.3 Air Treatment Equipment .........................................................................3 2. External Appearance...............................
Model Names of Indoor / Outdoor Units SiBE341027 1. Model Names of Indoor / Outdoor Units 1.1 Indoor Units Capacity range Capacity index Ceiling Mounted Cassette Type (Round Flow) Ceiling Mounted Cassette (Compact Multi Flow) Type FXFQ 0.8HP 20 1HP 25 1.25HP 1.6HP 31.25 40 2HP 50 2.5HP 3.2HP 62.
SiBE341027 1.2 Model Names of Indoor / Outdoor Units Outdoor Units Series Heat Pump Model Name RQYQ Power Supply 8P 10P 12P 14P 16P 18P 20P 22P 24P 26P 28P 30P 32P 34P 36P 38P 40P 42P 44P 46P 48P Y1B Y1: 3 phase, 380-415V, 50Hz 1.
External Appearance SiBE341027 2. External Appearance 2.
SiBE341027 2.2 External Appearance Outdoor Units 8, 10, 12HP 14, 16HP 18, 20, 22, 24HP RQYQ8PY1B RQYQ10PY1B RQYQ12PY1B RQYQ14PY1B RQYQ16PY1B RQYQ18PY1B RQYQ20PY1B RQYQ22PY1B RQYQ24PY1B 26, 28HP 30, 32HP 34, 36, 38, 40HP RQYQ30PY1B RQYQ32PY1B RQYQ34PY1B RQYQ36PY1B RQYQ38PY1B RQYQ40PY1B RQYQ26PY1B RQYQ28PY1B 2.
Combination of Outdoor Units SiBE341027 3.
SiBE341027 Capacity Range 4. Capacity Range Combination ratio Connection capacity: 50% - 130% Combination ratio = Total capacity index of the indoor units Capacity index of the outdoor units Max. combination ratio Types of connected indoor units Min.
Capacity Range SiBE341027 Indoor unit connection capacity Types of connected indoor units Standard indoor units Type Single outdoor units Double outdoor units Triple outdoor units 8 HP Capacity index Model name Min. combination ratio Max. combination ratio Max.
SiBE341027 Features 5. Features 5.1 Introduction Before replacement Reuse of existing piping After replacement Replace Replace Replace Replace * It is possible to keep R-22 indoor units from K-series and later version It is not possible to combine old R-22 and new R-410A indoor units in one system due to incompatibility of communication. Enables smooth replacement of air conditioning with less effect on operations and users in the building.
Features 5.2 SiBE341027 Benefits of System Replacement High COP Comparison of VRV III - Q and VRV K series Approx. Saves energy with high COP 4.27 81% increase We have reached a higher level of efficiency, thanks to advanced features such as the heat exchanger, the grille and the dual DC fans. Conventional VRVK series RSX(Y)8, 10K (model from 14 years previous) 3.66 Approx. 54% increase 2.38 2.
SiBE341027 Features System flexibility An increased number of connectable indoor units in a single system More indoor units can be connected in a single system, enabling consolidation of existing piping! The number of connectable indoor units has been drastically increased from 30 to 64.
Features 5.3 SiBE341027 Procedure of Reuse of Existing Piping If you are using the existing piping, follow the steps below: Check whether the existing refrigerant piping is available or not. Check any failure or frequent additional refrigerant charging due to gas leakage or other causes. Failure found and not repaired. New piping has to be installed. No failure found or failures have been repaired.
SiBE341027 Features (Continued for the previous page) Remove the existing equipment and wiring work Remove the existing indoor/outdoor units and remote controllers. Use sheathed vinyl cord or wire (2 wire) with 0.75 to 1.25 mm2 for the transmission wire and the remote controller wire. Use and sheathed vinyl cord or wire (3 wire) with 0.75 to 1.25 mm2 for the cool/heat selector. No New wiring work is needed. No New power supply is needed.
Features 5.4 SiBE341027 Guidelines for Reuse of Existing Refrigerant Piping Piping limits for reuse of existing piping Multiple use Single use First indoor branch First indoor branch First outdoor branch *The rest of indoor units are the same as for single use. Colours in the diagram above are merely for identifying pipes referenced with symbols such as a.
SiBE341027 Features For the existing piping, please check the followings • • The existing piping should meet the condition of design pressure 3.3MPa. Concretely, it should meet the minimum thickness for VRVIII-Q shown in the table below. → Existing Daikin R-22 piping meets the minimum thickness of VRVIII-Q. The existing piping should not be corroded on the external appearance.
Features SiBE341027 Reusability of existing piping for VRVIII-Q • Pipe size selection Indoor Unit Indoor Unit Outdoor Unit Part D Outdoor Unit Part D Part E Part A Part E Part A Part C Part B Piping size Type of piping Capacity φ 19.1 φ 22.2 φ 12.7 φ 15.9 X X X X X X X X X X X φ 6.
SiBE341027 Part 2 Specifications 1. Specifications ........................................................................................18 1.1 Outdoor Units .........................................................................................
Specifications SiBE341027 1. Specifications 1.1 Outdoor Units Model Name ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Colour Dimensions: (H×W×D) RQYQ8PY1B RQYQ10PY1B kcal / h 19,400 24,300 Btu / h 76,800 96,200 kW kW 22.5 28.2 22.4 28.0 kcal / h 21,500 27,100 Btu / h 85,300 107,000 kW 25.0 31.5 mm Ivory White (5Y7.5/1) 1680×930×765 Ivory White (5Y7.5/1) 1680×930×765 Heat Exchanger Type Comp. Connecting Pipes 13.34+10.53 m³/h 16.
SiBE341027 Specifications Model Name RQYQ12PY1B ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity 29,000 34,600 Btu / h 115,000 137,000 kW 33.7 40.2 kW 33.5 40.0 kcal / h Btu / h 32,300 128,000 38,700 154,000 kW 37.5 Ivory White (5Y7.5/1) 45.0 Ivory White (5Y7.5/1) mm 1680×930×765 1680×1240×765 Casing Colour Dimensions: (H×W×D) Heat Exchanger Type Comp.
Specifications SiBE341027 Model Name RQYQ16PY1B ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity kcal / h 39,000 Btu / h 155,000 kW 45.3 kW 45.0 kcal / h Btu / h 43,000 171,000 kW 50.0 Ivory White (5Y7.5/1) mm 1680×1240×765 Casing Colour Dimensions: (H×W×D) Heat Exchanger Cross Fin Coil Type Comp. Hermetically Sealed Scroll Type Displacement m³/h 13.34+10.53+10.
SiBE341027 Specifications Model Name (Combination Unit) RQYQ18PY1B RQYQ20PY1B Model Name (Independent Unit) kcal / h RQYQ8PY1B+RQYQ10PY1B 43,600 RQYQ8PY1B+RQYQ12PY1B 48,300 Btu / h 173,000 192,000 kW 50.7 56.2 kW 50.4 55.9 kcal / h 48,600 53,800 Btu / h kW 193,000 56.5 213,000 62.5 Ivory White (5Y7.5/1) Ivory White (5Y7.
Specifications SiBE341027 Model Name (Combination Unit) RQYQ22PY1B RQYQ24PY1B Model Name (Independent Unit) kcal / h RQYQ10PY1B+RQYQ12PY1B 53,200 RQYQ12PY1B+RQYQ12PY1B 58,000 Btu / h 211,000 230,000 kW 61.9 67.4 kW 61.5 67.0 kcal / h 59,300 64,500 Btu / h kW 235,000 69.0 256,000 75.0 Ivory White (5Y7.5/1) Ivory White (5Y7.
SiBE341027 Specifications Model Name (Combination Unit) RQYQ26PY1B RQYQ28PY1B Model Name (Independent Unit) kcal / h RQYQ10PY1B+RQYQ16PY1B 63,300 RQYQ12PY1B+RQYQ16PY1B 67,900 Btu / h 251,000 270,000 kW 73.5 79.0 kW 73.0 78.5 kcal / h 70,100 75,300 Btu / h kW 278,000 81.5 299,000 87.5 Ivory White (5Y7.5/1) Ivory White (5Y7.
Specifications SiBE341027 Model Name (Combination Unit) RQYQ30PY1B RQYQ32PY1B Model Name (Independent Unit) kcal / h RQYQ14PY1B+RQYQ16PY1B 73,500 RQYQ16PY1B+RQYQ16PY1B 78,000 Btu / h 292,000 310,000 kW 85.5 90.6 kW 85.0 90.0 kcal / h 81,700 86,000 Btu / h kW 324,000 95.0 341,000 100 Ivory White (5Y7.5/1) Ivory White (5Y7.
SiBE341027 Specifications Model Name (Combination Unit) RQYQ34PY1B RQYQ36PY1B Model Name (Independent Unit) kcal / h RQYQ10PY1B+RQYQ10PY1B+RQYQ14PY1B 83,200 RQYQ10PY1B+RQYQ10PY1B+RQYQ16PY1B 87,700 Btu / h 329,000 348,000 kW 96.6 102 kW 96.0 101 kcal / h 92,700 97,200 Btu / h kW 368,000 108 386,000 113 Ivory White (5Y7.5/1) Ivory White (5Y7.
Specifications SiBE341027 Model Name (Combination Unit) RQYQ38PY1B RQYQ40PY1B Model Name (Independent Unit) kcal / h RQYQ10PY1B+RQYQ12PY1B+RQYQ16PY1B 92,900 RQYQ12PY1B+RQYQ12PY1B+RQYQ16PY1B 97,200 Btu / h 368,000 386,000 kW 108 113 kW 107 112 kcal / h 102,000 108,000 Btu / h kW 406,000 119 427,000 125 Ivory White (5Y7.5/1) Ivory White (5Y7.
SiBE341027 Specifications Model Name (Combination Unit) RQYQ42PY1B RQYQ44PY1B Model Name (Independent Unit) kcal / h RQYQ10PY1B+RQYQ16PY1B+RQYQ16PY1B 102,000 RQYQ12PY1B+RQYQ16PY1B+RQYQ16PY1B 108,000 Btu / h 406,000 427,000 kW 119 125 kW 118 124 kcal / h 114,000 119,000 Btu / h kW 450,000 132 471,000 138 Ivory White (5Y7.5/1) Ivory White (5Y7.
Specifications SiBE341027 Model Name (Combination Unit) RQYQ46PY1B RQYQ48PY1B Model Name (Independent Unit) kcal / h RQYQ14PY1B+RQYQ16PY1B+RQYQ16PY1B 113,000 RQYQ16PY1B+RQYQ16PY1B+RQYQ16PY1B 117,000 Btu / h 447,000 464,000 kW 131 136 kW 130 135 kcal / h 125,000 129,000 Btu / h kW 495,000 145 521,000 150 Ivory White (5Y7.5/1) Ivory White (5Y7.
SiBE341027 Part 3 Refrigerant Circuit 1. Refrigerant Circuit .................................................................................30 1.1 RQYQ8PY1B..........................................................................................30 1.2 RQYQ10·12PY1B...................................................................................32 1.3 RQYQ14·16PY1B...................................................................................34 2. Functional Parts Layout ..........................
Refrigerant Circuit SiBE341027 1. Refrigerant Circuit 1.1 RQYQ8PY1B No. in refrigerant system diagram Symbol (1) M1C Inverter compressor (INV.
STRAINER (15) SOLENOID VALVE CHECK VALVE GAS PIPE LIQUID PIPE FILTER REFRIGERANT REGULATOR CHECK VALVE FILTER SV MIXING UNIT SOLENOID VALVE (16) CHECK VALVE (9) SV SOLENOID VALVE FILTER CHECK VALVE SV (8) SOLENOID VALVE (23) HIGHPRESSURE SWITCH (CONTROL) PIPE HEAT EXCHANGER S2PH (34) FILTER SOLENOID VALVE (13) SOLENOID (17) VALVE (30) CHECK VALVE SOLENOID VALVE (18) FILTER SV PRESSURE REGULATING VALVE (20) PRESSURE SENSOR FUSIBLE (HIGH, LIQUID PIPE) PLUG S2NPH (28) SV OIL REGU
Refrigerant Circuit 1.2 RQYQ10·12PY1B No. in refrigerant system diagram (1) Symbol Name M1C Inverter compressor (INV.
SV (19) SOLENOID VALVE CHECK VALVE CHECK VALVE REFRIGERANT REGULATOR SV MIXING UNIT (33) PRESSURE REGULATING VALVE (31) FUSIBLE PLUG FILTER CHECK VALVE STRAINER (16) SOLENOID VALVE GAS PIPE LIQUID PIPE FILTER (21) PRESSURE SENSOR (HIGH, LIQUID PIPE) S2NPH SV SOLENOID VALVE (14) (38) FILTER CHECK (10) VALVE SOLENOID VALVE SV FILTER SOLENOID VALVE (9) SV (25) HIGH PRESSURE SWITCH (29) (CONTROL) PIPE HEAT S3PH EXCHANGER (C) SOLENOID VALVE (18) CHECK VALVE SOLENOID VALVE (17) SV PRESSU
Refrigerant Circuit 1.3 RQYQ14·16PY1B No. in refrigerant system diagram (1) (2) (3) (4) (5) (6) (7) Symbol M1C M2C M3C M1F M2F Y1E Y2E Name Inverter compressor (INV.
SOLENOID (18)VALVE CHECK VALVE STRAINER GAS PIPE LIQUID PIPE FILTER (23) PRESSURE SENSOR (HIGH, LIQUID PIPE) S2NPH FILTER SOLENOID VALVE (21) REFRIGERANT REGULATOR CHECK VALVE SOLENOID VALVE (19) MIXING UNIT (42) SV (12) SOLENOID VALVE (28) HIGH PRESSURE SWITCH (32) (CONTROL) PIPE HEAT EXCHANGER S4PH (C) SOLENOID VALVE (17) SV CHECK (13) VALVE SOLENOID VALVE (36) CHECK (20) SV SOLENOID VALVE VALVE CHECK VALVE SV PRESSURE REGULATING VALVE FUSIBLE PLUG (34) FILTER SV OIL REGULATOR P
Functional Parts Layout SiBE341027 2. Functional Parts Layout 2.
SiBE341027 2.
Functional Parts Layout 2.
SiBE341027 Refrigerant Flow for Each Operation Mode 3. Refrigerant Flow for Each Operation Mode 3.
Refrigerant Flow for Each Operation Mode SiBE341027 Cooling oil return / Heating oil return / Defrost operation "High temperature, high pressure gas" "High temperature, high pressure liquid" "Low temperature, low pressure" Indoor unit operation "OFF" (Cooling) Heat exchanger Heat exchanger Fan "ON" Fan "OFF" Fan "ON" Electronic expansion valve (Superheated control) Electronic expansion valve (224 pls) Electronic expansion valve (224 pls) Filter SOLENOID VALVE CHECK VALVE CHECK VALVE FILTER CH
SiBE341027 Refrigerant Flow for Each Operation Mode Heating operation "High temperature, high pressure gas" "High temperature, high pressure liquid" "Low temperature, low pressure" Heat exchanger Heat exchanger Fan "ON" Fan "OFF" Fan "OFF" Electronic expansion valve (Superheated control) Electronic expansion valve (200 ~ 300 pls) Electronic expansion valve (200 ~ 300 pls) CHECK VALVE FILTER CHECK SOLENOID VALVE VALVE SOLENOID VALVE SV SV Filter STRAINER SOLENOID VALVE SV STRAINER RECEIVER
SiBE341027 Part 4 Function 1. Function General...................................................................................43 1.1 Operation Mode......................................................................................43 2. Detailed Control Functions....................................................................44 2.1 2.2 2.3 2.4 2.5 2.6 42 Stop Operation .......................................................................................44 Standby .............................
SiBE341027 Function General 1. Function General 1.1 Operation Mode 2-1. Stop operation Thermostat ON (If test run has not been completed, the error code "U3" is displayed and the unit will not operation. However this does not apply to test run in service mode, refrigerant charging, and pump down.) Indoor unit stop or thermostat OFF 2.2. Standby (1) Restart Standby (2) Crankcase Heater Control Retry Pressure equalization prior to startup Indoor unit stop or thermostat OFF 2.3.
Detailed Control Functions SiBE341027 2. Detailed Control Functions 2.1 Stop Operation 2.1.1 Stop due to Error In order to protect compressors, if any of the abnormal state occurs, the system will make "stop with thermostat OFF" and the error will be determined according to the number of retry times. (Refer to "Error code and description" (P.100~) of the troubleshooting for the items to determine the error.) 2.1.2 When System is in Stop Mode Both the master and slave units stop.
SiBE341027 2.3 Detailed Control Functions Startup Control This control is used to equalize the pressure in the front and back of the compressor prior to the startup of the compressor, thus reducing startup loads. Furthermore, the inverter is turned ON to charge the capacitor. To avoid stresses to the compressor due to oil return or else after the startup, the following control is made and the position of the four way valve is also determined.
Detailed Control Functions 2.4 SiBE341027 Normal Operation 2.4.
SiBE341027 Detailed Control Functions 2.4.2 Compressor PI Control Carries out the compressor capacity PI control to maintain Te at constant during cooling operation and Tc at constant during heating operation to ensure stable unit performance. [Cooling operation] Controls compressor capacity to adjust Te to achieve target value (TeS). Te set value (Make this setting while in Setting mode 2.
Detailed Control Functions SiBE341027 2.4.3 Outdoor Unit Rotation In the case of multi-outdoor-unit system, this outdoor unit rotation is used to prevent the compressor from burning out due to unbalanced oil level between outdoor units. [Details of outdoor unit rotation] In case of multi-outdoor-unit system, each outdoor unit is given an operating priority for the control. Outdoor unit rotation makes it possible to change the operating priority of outdoor units.
SiBE341027 Detailed Control Functions 2.4.4 Compressor Step Control Compressor operations vary with the following steps according to information in “2.4.2 Compressor PI Control”. RQYQ8PY1B RQYQ10 ·12PY1B STEP No. RQYQ14 ·16PY1B INV. STEP No. INV. STD1 STEP No. INV.
Detailed Control Functions SiBE341027 2.4.5 Electronic Expansion Valve PI Control Main electronic expansion valve control When the outdoor unit heat exchanger is performed via the evaporator, this function is used to exert PI control on the electronic expansion valve (Y1E) so that the evaporator outlet superheated degree (SH) will become constant. SH = Tg - Te SH: Evaporator outlet superheated degree (°C) Tg : Suction pipe temperature (°C) detected by the thermistor R8T.
SiBE341027 2.5 Detailed Control Functions Protection Control 2.5.1 High Pressure Protection Control This high pressure protection control is used to prevent the activation of protection devices due to abnormal increase of high pressure and to protect compressors against the transient increase of high pressure. [In cooling] In case of multi-outdoor-unit system, each outdoor unit performs this control individually in the following sequence.
Detailed Control Functions SiBE341027 2.5.2 Low Pressure Protection Control This low pressure protection control is used to protect compressors against the transient decrease of low pressure. [In cooling] In case of multi-outdoor-unit system, the following control is performed in the entire system. Normal operation Pe < 0.34 MPa (*1 0.20 MPa) Pe > 0.39 MPa Pe: Low pressure sensor detection value for master unit All STD compressors stop Pe < 0.25 MPa (*1 0.
SiBE341027 Detailed Control Functions [In heating] In case of multi-outdoor-unit system, each outdoor unit performs this control individually in the following sequence. Normal operation & •Pe > 0.23 MPa •Compressor step = Max. step Pe < 0.17 MPa & (Without preconditions) INV. compressor •After 15 seconds INV. compressor Current step maintained 3 step down (Without preconditions) & & •Pe > 0.20 MPa 1 step up •Pe< 0.17 MPa •After 10 seconds •Pe < 0.
Detailed Control Functions SiBE341027 2.5.3 Discharge Pipe Protection Control This discharge pipe protection control is used to protect the compressor internal temperature against an error or transient increase of discharge pipe temperature. In case of multi-outdoor-unit system, each outdoor unit performs this control individually in the following sequence. [INV. compressor] Normal operation HTdi: Value of INV.
SiBE341027 Detailed Control Functions 2.5.4 Inverter Protection Control Inverter current protection control and inverter fin temperature control are performed to prevent tripping due to an error, or transient inverter overcurrent, and fin temperature increase. [Inverter overcurrent protection control] In the case of multi-outdoor-unit system, each INV. compressor performs these controls in the following sequence. Normal operation Inverter current value >26.5A • Inverter current value < 26.5 A & • INV.
Detailed Control Functions SiBE341027 2.5.5 STD Compressor Overload Protection This control is used to prevent abnormal heating due to overcurrent to the compressor resulting from failures of STD compressor such as locking. STD compressor ON Demand to operate. STD compressor OFF for 30 min. (2 times per 90 minutes at max.) 56 CT detection current value>28.
SiBE341027 2.6 Detailed Control Functions Special Control 2.6.1 Oil Return Operation In order to prevent the compressor from running out of oil, the oil return operation is conducted to recover oil flown out from the compressor to the system side. (1) Oil Return Operation in Cooling [Start conditions] Referring to the set conditions for the following items, start the oil return operation in cooling.
Detailed Control Functions SiBE341027 (2) Oil Return Operation in Heating [Start conditions] Referring to the set conditions for the following items, start the oil return operation in heating.
SiBE341027 Detailed Control Functions 2.6.2 Defrost Operation To defrost the outdoor unit heat exchanger while in heating operation, the defrost operation is conducted to recover the heating capacity. [Start conditions] Referring to the set conditions for the following items, start the defrosting operation.
SiBE341027 Part 5 Test Operation 1. Test Operation ......................................................................................61 1.1 Procedure and Outline ...........................................................................61 1.2 Check Operation ....................................................................................64 1.3 Checking in Normal Operation ...............................................................67 2. Field Setting from Outdoor Unit..........................
SiBE341027 Test Operation 1. Test Operation 1.1 Procedure and Outline Follow the following procedure to conduct the initial test operation after installation. 1.1.1 Check work prior to turn power supply on Check that the installation work for the indoor and outdoor units has been performed in accordance with the instructions in the Installation Manual. Check the below items.
Test Operation * SiBE341027 How to calculate additional refrigerant charging amount (Unit: 0.1 kg) Total length of Total length of φ22.2-mm × 0.37 + φ19.1-mm × 0.26 + liquid pipe) liquid pipe) R + Total length of Total length of φ12.7-mm × 0.059 + × 0.12 + φ9.5-mm liquid pipe) liquid pipe) Total length of φ15.9-mm × 0.18 liquid pipe) Total length of φ6.4-mm × 0.
SiBE341027 Test Operation 1.1.2 Turn power on Turn outdoor unit and indoor unit power on. { Be sure to turn the power on 6 hours before starting operation to protect compressors. (to power on crankcase heater) Check the LED display of the outdoor unit PCB. { Check to be sure the transmission is normal. The transmission is normal if the LEDs display conditions as shown in table below.
Test Operation 1.2 SiBE341027 Check Operation 1.2.1 RQYQ-P Make sure to carry out the check operation after the initial installation. Otherwise, the error code "U3" will be displayed on the remote controller and normal operation cannot be carried out.
SiBE341027 Test Operation Close the refrigerant cylinder valve. After checking that the LED display is normal, press the TEST button (BS4) again. Waits for conditions to stabilize after restart. h l h h k k h Contamination operation (30 ~ 60 minutes) h l h h k k k Up to 1 hour may be required. Automatic judgement of piping length (approximately 10 minutes) Checks the local piping length. At the same time, performs a final check of the refrigerant amount.
Test Operation SiBE341027 [Remote controller displays error code] Error code Installation trouble Corrective action E3 F3 E4 UF P8 P9 PA The outdoor unit stop valve has not been opened. Check that the gas and liquid side stop valves are open. PJ DIP switch (DS1, DS2) setting is incorrect after the Follow the instructions in "Field setting from outdoor unit" outdoor unit PCB (A1P) was replaced. (refer to P.68) and make the correct setting.
SiBE341027 1.3 Test Operation Checking in Normal Operation After check operation ends, start normal operation. • • • • (Heating is not possible if the outdoor air temperature is 24°C or higher.) Check that the indoor and outdoor units are operating normally. (If any abnormal noise occurs due to liquid compression in the compressor or another cause, stop operation immediately. Then energize the crankcase heater for a sufficient period of time before restarting operation.
Field Setting from Outdoor Unit SiBE341027 2. Field Setting from Outdoor Unit 2.1 Field Setting from Outdoor Unit 2.1.1 List of Field Setting Items This following section indicates the list of field setting items. For the lists of DIP switch contents, Setting mode 1, and Setting mode 2, refer to information in tables shown on the following page onward.
SiBE341027 Field Setting from Outdoor Unit (2) Service setting items 1 2 3 4 5 Setting item Content and objective of setting Indoor unit fan forced H operation Used to operate the indoor unit in the stopped state in forced H operation mode. Indoor unit forced Used to operate the indoor unit in forced operation operation mode. Change of targeted In cooling operation, used to change the evaporation targeted evaporation temperature for temperature compressor capacity control.
Field Setting from Outdoor Unit SiBE341027 2.1.2 Setting by DIP switches (1) Setting of factory set Using DIP switches on the PCB enables field setting shown below. However, make no changes of factory settings except for DS1-1. DIP switch No. Setting ON DS1-1 OFF (Factory setting) ON DS1-2 ~DS1-4 OFF (Factory setting) Setting item Description COOL/HEAT select setting is made with the use of a Cool/Heat Cool / Heat select selector equipped with the outdoor unit.
SiBE341027 Field Setting from Outdoor Unit 2.1.3 Setting by BS button The following settings are made by BS button on PCB. In case of multi-outdoor unit system, various items should be set with the master unit. (Setting with the slave unit is disabled.
Field Setting from Outdoor Unit SiBE341027 a. “Setting mode 1” This mode is used to set and check the following items. 1. Set items ············ In order to make COOL/HEAT selection in a batch of outdoor unit group, change the setting. • COOL/HEAT selector (IND)·······················Used to select COOL or HEAT by individual outdoor unit (factory set). • COOL/HEAT selector (MASTER) ··············Used to select COOL or HEAT by outdoor unit group with the master unit.
SiBE341027 b. “Setting mode 2” Press and hold the MODE (BS1) button for 5 seconds and set to “Setting mode 2”. Field Setting from Outdoor Unit No. 0 Digital pressure gauge kit display 1 Cool/heat unified address Low noise/demand address 2 3 Press the SET (BS2) button and set the LED display to a setting item shown in the table on the right. ↓ Press the RETURN (BS3) button and decide the item. (The present setting condition is blinked.
Field Setting from Outdoor Unit SiBE341027 No. 35 38 39 Setting item Description Setting of difference Make the setting when the outdoor unit is installed 40 m in height for the or more below the indoor unit.
SiBE341027 Field Setting from Outdoor Unit Setting item display No.
Field Setting from Outdoor Unit SiBE341027 Setting item display No.
SiBE341027 Field Setting from Outdoor Unit 000 c. Monitor mode To enter the monitor mode, press the MODE (BS1) button when in “Setting mode 1”. No. Press the RETURN (BS3) button to display different data of set items. Press the RETURN (BS3) button and switches to the initial status of “Monitor mode”. ∗ Press the MODE (BS1) button and returns to “Setting mode 1”.
Field Setting from Outdoor Unit SiBE341027 Setting item 0 Display contents of “Number of units for various settings” EMG operation / backup operation setting ON Defrost select setting Short OFF Medium Long Te setting L M H ~ Tc setting L M H l l l l l l l l l l l h h h h h h h h h h h h h h h h h h h h h h k h h h h h h h h h h h h k l h h h h h h h h h h h h h l k h h h h h h h h h h h h l k ★ Data such as addresses and number of units is expressed as binary numbers; the two ways of ex
SiBE341027 Field Setting from Outdoor Unit 2.1.4 Cool / Heat Mode Selection There are the following 5 cool/heat select modes. c Set cool/heat separately for each outdoor unit system by indoor unit remote controller. d Set cool/heat separately for each outdoor unit system by cool/heat selector. e Set cool/heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote controller.
Field Setting from Outdoor Unit SiBE341027 d Set Cool / Heat Separately for Each Outdoor Unit System by Cool / Heat Selector It does not matter whether or not there is outdoor - outdoor unit wiring. Set outdoor unit PCB DS1-1 to OUT (factory setting). Set C/H select to IND (individual) for “Setting mode 1” (factory setting). TEST MODE MALFNC. OUT C/H SELECT IND MASTER SLAVE L.N.O.P.
SiBE341027 Field Setting from Outdoor Unit OFF C/H SELECT IND MASTER SLAVE L.N.O.P. SLAVE DEMAND MASTER TEST C/H SELECT IND MODE L.N.O.P. CENTRAL C/H SELECTOR TEST MODE External control adaptor for outdoor unit DEMAND e Set Cool / Heat for More Than One Outdoor Unit System Simultaneously in Accordance with Unified Master Outdoor Unit by Indoor Unit Remote Controller Install the external control adaptor for outdoor unit on either the outdoor-outdoor, indoor-outdoor transmission line.
Field Setting from Outdoor Unit SiBE341027 OFF C/H SELECT IND MASTER SLAVE L.N.O.P. SLAVE DEMAND MASTER TEST C/H SELECT IND MODE L.N.O.P.
SiBE341027 Field Setting from Outdoor Unit Supplementation on e and f. When switching cool/heat for each adaptor PCB with the use of more than one adaptor PCB, set the address of the external control adaptor for outdoor unit PCB DS1 and DS2 so that it matches the unified cool/heat address of outdoor unit main PCB. C/H unified address C/H unified address External control adaptor for outdoor unit No.0 Outdoor unit unified master No.0 Outdoor unit unified slave No.0 Outdoor unit unified slave No.
Field Setting from Outdoor Unit SiBE341027 g Set cool/heat at all outdoor unit systems simultaneously for each external control adaptor for outdoor unit by using the centralized remote controller. Install the external control adaptor for outdoor unit (optional) onto the outdoor-outdoor, indoor-outdoor, or indoor-indoor transmission line. Use "setting mode 1" and set all outdoor units to SLAVE.
SiBE341027 Field Setting from Outdoor Unit 2.1.5 Setting of Low Noise Operation and Demand Operation Setting of Low Noise Operation By connecting the external contact input to the low noise input of the outdoor unit external control adaptor for outdoor unit (optional), you can lower operating noise by 2-3 dB. Setting Content Mode 1 Mode 2 Set the outdoor unit fan to Step 6 or lower. Set the outdoor unit fan to Step 5 or lower. Mode 3 Set the outdoor unit fan to Step 4 or lower. A.
Field Setting from Outdoor Unit SiBE341027 2.1.6 Setting of Demand Operation By connecting the external contact input to the demand input of the outdoor unit external control adaptor for outdoor unit (optional), the power consumption of unit operation can be saved suppressing the compressor operating condition. Setting content Set item Condition Mode 1 Demand 1 Mode 2 Setting method Content The compressor operates at approx. 60% or less of rating. The compressor operates at approx.
SiBE341027 Field Setting from Outdoor Unit 2.1.7 Air Tight Test Procedure After internal servicing is performed onsite, perform the air tight test. Fully open the electronic expansion valves of the outdoor unit and indoor unit, and turn ON some of the solenoid valves. [Operation procedure] c With the system stopped, use "Setting mode 2" and set (A) Refrigerant recovery / vacuuming mode (setting item No. 21) to "ON".
Field Setting from Outdoor Unit SiBE341027 2.1.10 Emergency Operation If the compressor cannot operate, this control inhibits any applicable compressor or outdoor unit from operating to perform emergency operation only with the operative compressor or outdoor unit. Caution In order to disable the compressor operation due to a failure or else, be sure to do so in emergency operation mode. NEVER attempt to disconnect power supply wires from magnetic contactors or else.
SiBE341027 Field Setting from Outdoor Unit (2) In the Case of Multi-Outdoor-Unit System [Automatic backup operation] With multi-outdoor-unit system, if a certain outdoor unit system errors (i.e., the system stops and indoor unit remote controller displays the error), by resetting the system with the indoor unit remote controller, the applicable outdoor unit is inhibited from operating for 8 hours, thus making it possible to perform backup operation automatically.
SiBE341027 Part 6 Service Diagnosis 1. Symptom-based Troubleshooting .........................................................92 2. Troubleshooting by Remote Controller .................................................95 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.20 2.21 2.22 2.23 2.24 2.25 2.26 2.27 2.28 2.29 2.30 2.31 2.32 2.33 2.34 2.35 2.36 2.37 2.38 2.39 90 Procedure of Self-diagnosis by Remote Controller ................................
SiBE341027 2.40 Transmission Error (between Centralized Controller and Indoor Unit) ................................173 2.41 System is not Set yet............................................................................176 2.42 System Error, Refrigerant System Address Undefined ........................177 2.43 Check ...................................................................................................
Symptom-based Troubleshooting SiBE341027 1. Symptom-based Troubleshooting Symptom 1 Supposed Cause The system does not start operation at all. Blowout of fuse(s) Cutout of breaker(s) Countermeasure Turn OFF the power supply and then replace the fuse(s). • If the knob of any breaker is in its OFF position, turn ON the power supply. • If the knob of any circuit breaker is in its tripped position, do not turn ON the power supply.
SiBE341027 Symptom-based Troubleshooting Symptom 7 8 Supposed Cause Countermeasure The system conducts fan operation but not cooling or heating operation. This symptom occurs immediately after turning ON the power supply. The system is in preparation mode of operation. "UNDER CENTRALIZED CONTROL" is displayed on the remote controller and the cooling/heating operation stops. The operation switches to the air supply operation. The airflow rate is not reproduced according to the setting.
Symptom-based Troubleshooting Symptom 11 The system produces sounds. Supposed Cause Countermeasure Immediately after turning ON the power supply, indoor unit produces "ringing" sounds. These are operating sounds of Normal operation. the electronic expansion valve of This sound becomes low after a the indoor unit. lapse of approximately one minute. "Hissing" sounds are continuously produced while in cooling or defrosting operation.
SiBE341027 Troubleshooting by Remote Controller 2. Troubleshooting by Remote Controller 2.1 Procedure of Self-diagnosis by Remote Controller 2.1.1 Wired Remote Controller — BRC1D528 If operation stops due to error, the remote controller’s operation LED blinks, and error code is displayed. (Even if stop operation is carried out, error contents are displayed when the inspection mode is entered.) The error code enables you to tell what kind of error caused operation to stop. Refer to P.
Troubleshooting by Remote Controller SiBE341027 2.1.2 Wired Remote Controller — BRC1E51A7 The following will be displayed on the screen when an error (or a warning) occurs during operation. Check the error code and take the corrective action specified for the particular model. Screen Operation lamp (1)Checking an error or warning Operation Status Display Abnormal shutdown The system stops operating. The operation lamp (green) starts to blink.
SiBE341027 Troubleshooting by Remote Controller 2.1.3 Wireless Remote Controller If unit stops due to an error, the operation indicating LED on the signal receiving part of indoor unit flashes. The error code can be determined by following the procedure described below. (The error code is displayed when an operation error has occurred. In normal condition, the error code of the last problem is displayed.) 1 2 3 4 Press the INSPECTION/TEST button to select “inspection”.
Troubleshooting by Remote Controller SiBE341027 Normal status Enters inspection mode from normal status when the INSPECTION/ TEST button is pressed. 2 1 Press INSPECTION/TEST button. If no button is pressed for 1 minute, equipment returns to normal status. 3 Press MODE selector button. When MODE selector button is pressed or no button is pressed for 1 minute, equipment returns to normal status. 6 If no button is pressed for 1 minute, equipment returns to normal status.
SiBE341027 Troubleshooting by Remote Controller 2pt k: ON h: OFF Error code E1 E2 l l PCB abnormality Actuation of high pressure switch or pressure switch 104 105 E3 E4 l l Actuation of high pressure switch or pressure switch Actuation of low pressure sensor 106 108 E5 E6 l l Inverter compressor motor lock STD compressor motor overcurrent/Lock 110 112 E7 E9 l l Outdoor unit fan motor abnormality Electronic expansion valve coil abnormality (Y1E ~ Y3E) 113 116 F3 F4 l l Abnormal dischar
Troubleshooting by Remote Controller SiBE341027 Error code indication by outdoor unit PCB Error Description of error PCB abnormality Abnormal discharge pressure or field piping pressure High pressure abnormality Actuation of low pressure sensor Inverter compressor motor lock STD compressor motor overcurrent/ Lock To enter the monitor mode, press the MODE (BS1) button when in “Setting mode 1”. * Refer to P. 77 for Monitor mode.
SiBE341027 Troubleshooting by Remote Controller k: ON Error code E1 E2 E3 E4 E5 E6 l l l l l l h h h h h h k k k k k k h h h h h h h h h l l l h l l h h l l h l h l h E7 l h k h l l l E9 l h k l h h l l l h h k k h h h l l l l h F3 F6 H3 H7 l l h h l h l l l h h l h h l: Blink h k h l l l l h k l h h l l h k h h l h J3 l h k h h l l J5 J6 J7 J8 J9 JA JC l l l l l l l h h h h h h h k k k k k k k h h h l l l l l l l h h h l h l
Troubleshooting by Remote Controller SiBE341027 Error Description of error To enter the monitor mode, press the MODE (BS1) button when in “Setting mode 1”. Inverter PCB abnormality Inverter radiation fin temperature rise * Refer to P. 77 for Monitor mode. Momentary overcurrent of INV. compressor Overcurrent abnormal of INV. compressor INV. compressor starting abnormality Transmission system abnormality (between INV.
SiBE341027 Troubleshooting by Remote Controller k: ON Error code l h k h h h l l l l l l h h h h h k k k k k h h l l l l l h h l h h h h h h l h l h U1 l l l l l h h h h h k k k k k h h l h h h l l h h h h h h h l h l h l U2 l h k h h l h U3 l l h h k k h h h l l h l h U7 l h k h l l l UA l h k l h l h l l h h k k l l l h l l l l L1 l l h h l l l L4 L5 L8 L9 LC P1 l l h l h h h l l h l h h h P4 PJ U0 h: OFF l: Blink Co
Troubleshooting by Remote Controller 2.2 SiBE341027 PCB Abnormality Remote Controller Display E1 Applicable Models RQYQ-PY1B Method of Error Detection Abnormality is detected under the communication conditions in the hardware section between the indoor unit and outdoor unit. Error Decision Conditions When the communication conditions in the hardware section between the indoor unit and the outdoor unit are not normal.
SiBE341027 2.3 Troubleshooting by Remote Controller Actuation of High Pressure Switch or Pressure Switch Remote Controller Display E2 Applicable Models RQYQ-PY1B Method of Error Detection The error is detected by the relationship between "pressure detected by the high pressure sensor" and "operation of the high pressure switch or pressure switch".
Troubleshooting by Remote Controller 2.4 SiBE341027 Actuation of High Pressure Switch (S1PH) or Pressure Switch (S2P) Remote Controller Display E3 Applicable Models RQYQ-PY1B Method of Error Detection Abnormality is detected by the protection device circuit that detects continuity at the high pressure switch and pressure switch. Error Decision Conditions When the contact of the high pressure switch or pressure switch opens.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Check for the points shown below. (1) Is the stop valve opened? (2) Are the high pressure switch and pressure switch connector properly connected to the main PCB? (3) Do the high pressure switch and pressure switch have continuity? Are the two points above OK? NO Rectify defective points, if any.
Troubleshooting by Remote Controller 2.5 SiBE341027 Actuation of Low Pressure Sensor Remote Controller Display E4 Applicable Models RQYQ-PY1B Method of Error Detection Abnormality is detected by the pressure value of the low pressure sensor with the outdoor unit main PCB (A1P). Error Decision Conditions Error is generated when the low pressure is dropped under compressor operation. Operating pressure: 0.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. NO Is the stop valve opened? Open the stop valve. YES (1) Mount a pressure gauge on the low pressure service port. (2) Reset the operation using the remote controller, and then restart the operation. Are the characteristics of the low pressure sensor normal? (*1) NO Replace the low pressure sensor.
Troubleshooting by Remote Controller 2.6 SiBE341027 Inverter Compressor Motor Lock Remote Controller Display E5 Applicable Models RQYQ-PY1B Method of Error Detection Inverter PCB takes the position signal from UVW line connected between the inverter and compressor, and the error is detected when any abnormality is observed in the phase-current waveform. Error Decision Conditions This error will be output when the inverter compressor motor does not start up even in forced startup mode.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Is the stop valve open? NO Local factor Open the stop valve. YES Power OFF Are the relay wires to the compressor correct? YES NO Is the connection of UVW phase order correct? YES NO Is the wiring the same as in the electric wiring diagram? NO Check if the wiring has any error in mistake for inverter compressor.
Troubleshooting by Remote Controller 2.7 SiBE341027 STD Compressor Motor Overcurrent/Lock Remote Controller Display E6 Applicable Models RQYQ10P~16PY1B Method of Error Detection Detects the overcurrent with current sensor (CT). Error Decision Conditions Error is decided when the detected current value exceeds 28.8 A for 2 seconds.
SiBE341027 2.8 Troubleshooting by Remote Controller Outdoor Unit Fan Motor Abnormality Remote Controller Display E7 Applicable Models RQYQ-PY1B Method of Error Detection c Detect an error based on the current value in the inverter PCB (as for motor 2, current value in the fan PCB). d Detect an error malfunction for the fan motor circuit based on the number of rotation detected by hole IC during the fan motor operation.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Check in the monitor mode Check fan motor (fan motor1, 2) corresponding to error code “E7” in the monitor mode of outdoor unit PCB. Turn OFF the power supply and wait for 10 minutes. Are any foreign matters around the fan? NO YES Remove the foreign matters.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting A No continuity of fuse (F1U) on the fan INV. PCB. YES Replace the fan INV. PCB. NO Remove the fan motor connector. Is the fan rotatable easily by hand? YES Replace the corresponding fan motor. NO Resistance value between the power supply wire terminal of fan motor and the motor frame (metal) is 1MΩ or less. YES Replace the corresponding fan motor.
Troubleshooting by Remote Controller 2.9 Electronic Expansion Valve Coil Abnormality (Y1E~Y3E) Remote Controller Display E9 Applicable Models RQYQ-PY1B Method of Error Detection Check the continuity of electronic expansion valve coil (Y1E) Error Decision Conditions No current is detected in the common (COM [+]) when power supply is ON.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Turn OFF the power supply once and then turn it ON again. Return to normal? YES NO External factor other than error (for example, noise etc.). Check the electronic expansion valve corresponding to the error code “E9” in the monitor mode.
Troubleshooting by Remote Controller SiBE341027 2.10 Abnormal Discharge Pipe Temperature Remote Controller Display F3 Applicable Models RQYQ-PY1B Method of Error Detection The error is detected according to the temperature detected by the discharge pipe temperature sensor.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Connect the service checker. Reset the operation and start operation again. Is the discharge pipe thermistor property normal? (*1) NO Replace the discharge pipe thermistor.
Troubleshooting by Remote Controller SiBE341027 2.11 Humidity Alarm Remote Controller Display F4 Applicable Models RQYQ-PY1B Method of Error Detection The condition of the liquid refrigerant returning to the compressor is detected by the temperature and pressure of any part during the cooling operation.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Connect the service checker. Set up a pressure gauge at the service port on the high pressure side. Reset the operation and then restart the operation. Is suction pipe thermistor property normal? NO Replace the suction pipe thermistor. YES Check if discharge pipe thermistor property is normal.
Troubleshooting by Remote Controller SiBE341027 2.12 Refrigerant Overcharged Remote Controller Display F6 Applicable Models RQYQ-PY1B Method of Error Detection Excessive charging of refrigerant is detected by using the outdoor air temperature, heat exchanger deicer temperature and liquid pipe temperature during check operation.
SiBE341027 Troubleshooting by Remote Controller 2.13 High Pressure Switch System Abnormality Remote Controller Display H3 Applicable Models RQYQ-PY1B Method of Error Detection The protection device circuit checks continuity in the high pressure switch. Error Decision Conditions When there is no continuity in the high pressure switch when the compressor stops operating.
Troubleshooting by Remote Controller SiBE341027 2.14 Abnormal Outdoor Fan Motor Signal Remote Controller Display H7 Applicable Models RQYQ-PY1B Method of Error Detection Detection of abnormal signal from fan motor. Error Decision Conditions In case of detection of abnormal signal at starting fan motor. Supposed Causes Abnormal fan motor signal (circuit error) Broken, short or disconnection connector of fan motor lead wire Defective fan INV.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Caution Check the fan motor corresponding to the error code “H7” in the monitor mode. When confirmation of error 3 shows as follows: → Fan motor 1 (M1F) When confirmation of error 3 shows as follows: → Fan motor (M2F) Explanation for “ ” Master unit Slave unit 1 Slave unit 2 System Turn OFF the power supply.
Troubleshooting by Remote Controller SiBE341027 2.15 Thermistor System Abnormality H9, J3, J5, J6, J7, J8, J9 Remote Controller Display Applicable Models RQYQ-PY1B Method of Error Detection The error is detected according to the temperature detected by each individual thermistor.
SiBE341027 Troubleshooting by Remote Controller 2.16 High Pressure Sensor Abnormality Remote Controller Display J1 Applicable Models RQYQ-PY1B Method of Error Detection Error is detected from the pressure measured with high pressure sensor. Error Decision Conditions When the high pressure sensor is short circuit or open circuit. (Not less than 4.22MPa, or 0.01MPa or less) Supposed Causes Defective high pressure sensor Connection of low pressure sensor with wrong connection.
Troubleshooting by Remote Controller SiBE341027 *2. Voltage measurement point Outdoor unit PCB (A1P) Red GND Micro-computer A/D input Black White High pressure sensor Connector for high pressure sensor (Red) Measure DC voltage here. CHECK 12 128 Refer to P.
SiBE341027 Troubleshooting by Remote Controller 2.17 Current Sensor Abnormality Remote Controller Display J2 Applicable Models RQYQ-PY1B Method of Error Detection Error is detected from the current value detected by current sensor. Error Decision Conditions When the current value detected by current sensor becomes 5A or less, or 40A or more during STD compressor operation.
Troubleshooting by Remote Controller SiBE341027 2.18 High Pressure Sensor Abnormality Remote Controller Display JA Applicable Models RQYQ-PY1B Method of Error Detection Error is detected from the pressure detected by the high pressure sensor. Error Decision Conditions When the high pressure sensor is short-circuit or open circuit. (Not less than 4.22MPa, or 0.01MPa or less) Supposed Causes 130 Defective high pressure sensor Connection of low pressure sensor with wrong connection.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. 1. Mount the high pressure gauge. 2. Connect the checker for VRV. Are the characteristics of the high pressure sensor normal? (Make a comparison between the voltage characteristics (*2) and the gauge pressure.) NO Replace the high pressure sensor.
Troubleshooting by Remote Controller SiBE341027 2.19 Low Pressure Sensor Abnormality Remote Controller Display JC Applicable Models RQYQ-PY1B Method of Error Detection Error is detected from the pressure detected by the low pressure sensor. Error Decision Conditions When the low pressure sensor is short circuit or open circuit. (Not less than 1.77MPa, or -0.01MPa and below) Supposed Causes Defect of low pressure sensor Connection of high pressure sensor with wrong connection.
SiBE341027 Troubleshooting by Remote Controller Note: *1. Voltage measurement point Outdoor unit PCB (A1P) +5V Connector for low pressure sensor GND Micro-computer A/D input (4) Red (3) Black (2) White (1) Low pressure sensor X31A Make measurement of DC voltage between these wires. CHECK 12 Service Diagnosis Refer to P.
Troubleshooting by Remote Controller SiBE341027 2.20 Inverter PCB Abnormality Remote Controller Display L1 Applicable Models RQYQ-PY1B Method of Error Detection Detect error by current value during waveform output before compressor startup. Detect error by current sensor value during synchronized operation at the time of startup.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Caution Turn OFF the power supply once, and then check the compressor lead wires. Do the lead wires have any disconnection, broken wire, short circuit, or ground fault? YES Replace the lead wires. NO Turn ON the power supply again.
Troubleshooting by Remote Controller SiBE341027 2.21 Inverter Radiation Fin Temperature Rise Remote Controller Display L4 Applicable Models RQYQ-PY1B Method of Error Detection Radiation of compressor inverter PCB. Fin temperature is detected by the radiation fin thermistor. Error Decision Conditions When the temperature of the inverter radiation fin increases above 87°C.
SiBE341027 Troubleshooting by Remote Controller 2.22 Momentary Overcurrent of Inverter Compressor Remote Controller Display L5 Applicable Models RQYQ-PY1B Method of Error Detection Error is detected from the current flowing in the power transistor. Error Decision Conditions When an excessive current (59.1A) flows in the power transistor. (Instantaneous overcurrent also causes activation.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Is the stop valve open? NO Open the stop valve. YES Are the compressor lead wires normal? NO Replace the compressor lead wires. YES Are the wiring and connection to the compressor normal? NO Correct the wiring and connection.
SiBE341027 Troubleshooting by Remote Controller 2.23 Overcurrent Abnormal of Inverter Compressor Remote Controller Display L8 Applicable Models RQYQ-PY1B Method of Error Detection Error is detected from the current flowing in the power transistor. Error Decision Conditions When the inverter secondary current value is below. (1) 33.5A and over continues for 5 seconds. (2) 27.6A and over continues for 260 seconds.
Troubleshooting by Remote Controller Troubleshooting SiBE341027 Output current check Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Is the stop valve opened? NO Open the stop valve. YES Are the compressor lead wires normal? NO Replace the compressor lead wires. YES Are the wiring and connection to the compressor normal? NO Correct the wiring and connection.
SiBE341027 Troubleshooting by Remote Controller 2.24 Inverter Compressor Starting Abnormality Remote Controller Display L9 Applicable Models RQYQ-PY1B Method of Error Detection Error is detected based on the signal waveform of the compressor. Error Decision Conditions Starting the compressor does not complete.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting Continued from the previous page. (Start failure due to aged operation.) Refrigerant is melting in refrigerant oil. (The unit is out of power supply for more than 6 hours.) NO Cancel the melting state of refrigerant. YES Is the insulation resistance of the compressor 100kΩ or more? NO Replace the inverter compressor. YES Broken wire inside the compressor YES Replace the inverter compressor.
SiBE341027 Troubleshooting by Remote Controller 2.25 Transmission System Error (between Inverter and Main PCB) Remote Controller Display LC Applicable Models RQYQ-PY1B Method of Error Detection Check the communication state between inverter PCB and main PCB by micro-computer. Error Decision Conditions When the transmission is not carried out in a specified period of time or longer.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Are the connectors of the main PCB, and inverter PCB all securely connected? (*1) NO Properly connect the connectors. YES Is the type of the inverter PCB correct? NO Replace it with a correct PCB. YES The INV. compressor has insulation resistance of not more than 100kΩ. YES Replace the INV. compressor (M1C).
SiBE341027 Troubleshooting by Remote Controller 2.26 Inverter Over-Ripple Protection Remote Controller Display P1 Applicable Models RQYQ-PY1B Method of Error Detection Imbalance in supply voltage is detected in PCB. Error Decision Conditions When the amplitude of the ripple exceeding 6V is detected. Error is not decided while the unit operation is continued. “ P1 ” will be displayed by pressing the inspection button.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Imbalance in supplied voltage is in excess of 6 V. (*1) YES Open phase? NO NO Is the voltage imbalance applied to the inverter in excess of 6 V? (*2) NO YES YES Open phase Normalize field cause. Fix power supply voltage imbalance.
SiBE341027 Troubleshooting by Remote Controller 2.27 Inverter Radiation Fin Temperature Abnormality Remote Controller Display P4 Applicable Models RQYQ-PY1B Method of Error Detection Resistance of radiation fin thermistor is detected during the compressor stops. Error Decision Conditions When the resistance value of thermistor becomes a value equivalent to open or short circuited status. ★ Error is not decided while the unit operation is continued.
Troubleshooting by Remote Controller SiBE341027 2.28 Field Setting Abnormality after Replacing Main PCB or Combination Error of PCB Remote Controller Display PJ Applicable Models RQYQ-PY1B Method of Error Detection This error is detected according to communications with the INV. PCB. Error Decision Conditions Make judgement according to communication data on whether or not the type of the INV. PCB is correct.
SiBE341027 Troubleshooting by Remote Controller 2.29 Refrigerant Shortage Remote Controller Display U0 Applicable Models RQYQ-PY1B Method of Error Detection Detect refrigerant shortage based on the temperature difference between low pressure or suction pipe and heat exchanger. Error Decision Conditions [In cooling mode] Low pressure becomes 0.1MPa or less. [In heating mode] The degree of superheat of suction gas becomes 20 degrees or more.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. In cooling Mount a pressure gauge at the service port on the low pressure side. Reset the operation using the remote controller then restart. Is the low pressure 0.1MPa or less? (*1) NO YES Is the characteristics of low pressure sensor normal? (*2) NO Replace the low pressure sensor.
SiBE341027 Troubleshooting by Remote Controller 2.30 Reverse Phase, Open Phase Remote Controller Display U1 Applicable Models RQYQ-PY1B Method of Error Detection The phase of each phase are detected by reverse phase detection circuit and right phase or reverse phase are judged. Error Decision Conditions When a power supply is reverse phase, or T phase is open phase.
Troubleshooting by Remote Controller SiBE341027 2.31 Power Supply Insufficient or Instantaneous Failure Remote Controller Display U2 Applicable Models RQYQ-PY1B Method of Error Detection Detection of voltage of main circuit capacitor built in the inverter PCB and power supply voltage. Error Decision Conditions When the voltage aforementioned is not less than 190V.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Check the condition of the power supply. Check if power supply voltage is 380 to 415V. Check if there is open phase or wrong wiring. Check if power supply voltage side unbalance is with in 6V. There are problems on the condition of power supply described above. YES Correct the problem.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting A Turn ON the power supply, and start operation. Stop (standby) before the fan rotates. YES Replace the noise filter PCB (A3P). (Defect of noise filter) NO Stop (standby) when the compressor startup. YES NO The "U2" error recurs. YES Replace the inverter PCB (A4P). If the inverter PCB is badly damaged, recheck the compressor. Check the harness. NO Continue the operation. The error may temporarily result from external factors.
SiBE341027 Troubleshooting by Remote Controller 2.32 Check Operation is not Executed Remote Controller Display U3 Applicable Models RQYQ-PY1B Method of Error Detection Check operation is executed or not Error Decision Conditions Error is decided when the unit starts operation without check operation. Supposed Causes Check operation is not executed. Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
Troubleshooting by Remote Controller SiBE341027 2.33 Transmission Error (between Indoor and Outdoor Units) Remote Controller Display U4 Applicable Models All indoor unit models RQYQ-PY1B Method of Error Detection The error is generated when the micro-computer detects that the transmission between the indoor and outdoor unit is not normal.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Check the detailed error status in the monitor mode. In Confirmation of error 4, LED lamp indicates as follows: NO ( Go on to the next page. LED lamp display ) YES Check if indoor unit PCB or outdoor unit PCB has been replaced. Or check if indoor/outdoor, outdoor/ outdoor connecting wires has been modified.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Continued from the previous page In Confirmation of error 4, LED lamp indicates as follows: Start operation of all the indoor units. Do all the units indicate “U9”? NO Continue the operation.
SiBE341027 Troubleshooting by Remote Controller 2.34 Transmission Error (between Remote Controller and Indoor Unit) Remote Controller Display U5 Applicable Models All indoor unit models Method of Error Detection Micro-computer checks if transmission between indoor unit and remote controller is normal. Error Decision Conditions Normal transmission does not continue for specified period.
Troubleshooting by Remote Controller SiBE341027 2.35 Transmission Error (Across Outdoor Units) Remote Controller Display U7 Applicable Models RQYQ-PY1B Method of Error Detection Micro-computer checks if transmission between outdoor units is normal.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Check the LED lamps for “Confirmation of error 3” corresponding to the error code “U7” and for Confirmation of error 4 in the monitor mode.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Diagnosis Flow 1 Confirmation of error 3 Confirmation of error 4 Check if any disconnection or connection error is detected in connecting wires with external control adaptor for outdoor unit. YES Correct the connecting wiring with the external control adaptor for outdoor unit.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Diagnosis Flow 2 Confirmation of error 3 Confirmation of error 4 Cool/Heat selection is unified. NO C/H SELECT of the external control adaptor for outdoor unit is set to “IND”. YES Setting of C/H SELECT of the external control adaptor for outdoor unit is “MASTER”.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Diagnosis Flow 3 Confirmation of error 3 Confirmation of error 4 Check the connection status of connecting wires of the outdoor multi to SLAVE 1. Check if the wiring is disconnected or is about to be disconnected. NO Replace the outdoor unit main PCB of the SLAVE 1.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Diagnosis Flow 6 Confirmation of error 3 Confirmation of error 4 Check the connection status of one of the connecting wires of outdoor multi. Check if the wiring is broken or disconnected. NO Replace the outdoor unit main PCB. YES Correct the connecting wires of the outdoor multi and then reset the power supply.
Troubleshooting by Remote Controller SiBE341027 2.36 Transmission Error (between Main and Sub Remote Controllers) Remote Controller Display U8 Applicable Models All indoor unit models Method of Error Detection In case of controlling with 2-remote controller, check the system using micro-computer if signal transmission between indoor unit and remote controller (main and sub) is normal. Error Decision Conditions Normal transmission does not continue for a certain amount of time.
SiBE341027 Troubleshooting by Remote Controller 2.37 Transmission Error (between Indoor and Outdoor Units in the Same System) U9 Remote Controller Display Applicable Models All models of indoor unit RQYQ-PY1B Method of Error Detection Detect error signal for the other indoor units within the circuit by outside unit PCB. Error Decision Conditions When the error decision is made on any other indoor unit within the system concerned.
Troubleshooting by Remote Controller SiBE341027 2.38 Improper Combination of Indoor and Outdoor Units, Indoor Units and Remote Controller Remote Controller Display UA Applicable Models All indoor unit models RQYQ-PY1B Method of Error Detection A difference occurs in data by the refrigerant type between indoor and outdoor units. The number of indoor units is out of the allowable range.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Check the LED lamps for “Confirmation of error 3” corresponding to the error code “UA” and for Confirmation of error 4 in the monitor mode.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Diagnosis Flow 1 Confirmation of error 3 Confirmation of error 4 The number of indoor units connected to the same refrigerant system should not more than 64 units. YES Replace the outdoor unit main PCB. NO The number of indoor units exceeds the allowable range. Check the connection to correct.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Diagnosis Flow 3 Confirmation of error 3 Confirmation of error 4 Multi-connection? NO Replace the outdoor unit main PCB. YES Check if the outdoor unit PCB is replaced with spare PCB. NO YES Check if the unit is not connected to outdoor units of different models. NO Replace the outdoor unit main PCB.
Troubleshooting by Remote Controller SiBE341027 2.39 Address Duplication of Centralized Controller Remote Controller Display UC Applicable Models All models of indoor unit Centralized controller Method of Error Detection The principal indoor unit detects the same address as that of its own on any other indoor unit. Error Decision Conditions The error decision is made as soon as the abnormality aforementioned is detected.
SiBE341027 Troubleshooting by Remote Controller 2.40 Transmission Error (between Centralized Controller and Indoor Unit) Remote Controller Display UE Applicable Models All models of indoor unit intelligent Touch Controller Centralized remote controller Schedule timer Method of Error Detection Micro-computer checks if transmission between indoor unit and centralized controller is normal.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Check the indoor unit for which “UE” is displayed. Is the the transmission error (UE) caused on all indoor units? YES Continued to A (on the following page) NO Is the power supply of the indoor unit on which the “UE” occurred, turned ON? NO Make sure there are no hazardous situations, and then turn ON the power supply.
SiBE341027 Troubleshooting by Remote Controller Troubleshooting A Check the transmission wiring between centralized controllers for any broken wire. For details, refer to information in the “Procedure for checking broken wires” section. Abnormal Correct the wiring. Normal Check the transmission wiring between master centralized controller for any broken wire. For details, refer to information in the "Procedure for checking broken wires" section. Abnormal Correct the wiring.
Troubleshooting by Remote Controller SiBE341027 2.41 System is not Set yet Remote Controller Display UF Applicable Models All models of indoor unit RQYQ-PY1B Method of Error Detection On check operation, the number of indoor units in terms of transmission is not corresponding to that of indoor units that have made changes in temperature.
SiBE341027 Troubleshooting by Remote Controller 2.42 System Error, Refrigerant System Address Undefined Remote Controller Display UH Applicable Models All models of indoor unit RQYQ-PY1B Method of Error Detection Detect an indoor unit with no auto address setting. Error Decision Conditions The error decision is made as soon as the abnormality aforementioned is detected.
Troubleshooting by Remote Controller SiBE341027 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Is electricity being introduce for the first time after installation or after an indoor or outdoor unit PCB has been replaced? YES NO Is indoor - outdoor and outdoor - outdoor unit transmission wiring normal? (*1) NO Normal YES NO YES Press and hold the RESET button on the outdoor unit PCB for 5 seconds.
SiBE341027 Troubleshooting by Remote Controller 2.43 Check CHECK 1 Check for causes of rise in high pressure Referring to the Fault Tree Analysis (FTA) shown below, probe the defective points. Local pressure rise [In cooling] If the outside unit electronic expansion valve is throttled: (See ∗1.) Rise in high pressure High pipe resistance Defective outside unit electronic expansion valve A temperature difference in excess of 10°C between the inlet and the outlet is deemed to be abnormal.
Troubleshooting by Remote Controller CHECK 2 Check for causes of drop in low pressure Referring to the Fault Tree Analysis (FTA) shown below, probe the defective points. [In cooling] (See ∗1.) Defective low pressure control Abnormally low low-pressure (Low evaporating temperature) SiBE341027 [In both cooling and heating] (See ∗2.) [In cooling] If the indoor unit electronic expansion valve is excessively throttled: (See ∗3.
SiBE341027 CHECK 3 Troubleshooting by Remote Controller Check the Factors of Overheat Operation Identify the defective points referring to the defective factor analysis (FTA) as follows. Hot gas circuit clogging Defective hot gas bypass control (∗1) Defective solenoid valve coil Defective solenoid valve body ← Check if coil resistance and insulation are normal.
Troubleshooting by Remote Controller CHECK 4 SiBE341027 Power Transistor Check Perform the following procedures prior to check. (1) Power Off. (2) Remove all the wiring connected to the PCB where power transistors are mounted on. ∗ Preparing a tester in the analog system is recommended. A tester in the digital system with diode check function will be usable.
SiBE341027 CHECK 5 Troubleshooting by Remote Controller Check for causes of wet operation. Referring to the Fault Tree Analysis (FTA) shown below, identify defective points. Defective crankcase heater Refrigerant accumulation Frequent ON/OFF of compressor ←Refer to information in the CHECK 6 section. Overcharge of refrigerant [Cooling] Indoor unit electronic expansion valve opens too much.
Troubleshooting by Remote Controller CHECK 6 SiBE341027 Check for overcharge of refrigerant. In case of VRV Systems, the only way to judge as the overcharge of refrigerant is with operating conditions due to the relationship to pressure control and electronic expansion valve control. As information for making a judgement, refer to information provided below. Diagnosis of overcharge of refrigerant 1. High pressure rises. Consequently, overload control is exercised to cause scant cooling capacity. 2.
SiBE341027 CHECK 7 Troubleshooting by Remote Controller Check for shortage of refrigerant. In case of VRV Systems, the only way to judge as the shortage of refrigerant is with operating conditions due to the relationship to pressure control and electronic expansion valve control. As information for making a judgement, refer to information provided below. Diagnosis of shortage of refrigerant 1. The superheated degree of suction gas rises.
Troubleshooting by Remote Controller CHECK 8 SiBE341027 Vacuuming and dehydration procedure Conduct vacuuming and dehydration in the piping system following the procedure for described below. Furthermore, if moisture may get mixed in the piping system, follow the procedure for described below. Vacuuming and dehydration • Use a vacuum pump that enables vacuuming up to 100.7kPa (5 torr, -755 mmHg).
SiBE341027 CHECK 9 Troubleshooting by Remote Controller List of inverter-related error codes Protection device and others Compressor current Code Name Condition for determining error Major cause L5 Instantaneous overcurrent of inverter compressor • Inverter output current exceeds 32.3A even instantaneously. • Liquid sealing • Defective compressor • Defective inverter PCB L8 Overcurrent of inverter compressor (Electronic thermal) • Compressor overload running An overcurrent of 19.
Troubleshooting by Remote Controller Concept of inverter-related error codes Transmission error When transmissions between the main PCB and the inverter PCB are not normal Main (Service monitor) PCB Instantaneous overcurrent of inverter compressor (When inverter output current exceeds 460V units: 32.3A 230V units: 59.1A even instantaneously) Overcurrent of inverter compressor For 460V units An overcurrent of 19.0A or more continues for a period of 5 consecutive seconds An overcurrent of 16.
SiBE341027 CHECK 11 Troubleshooting by Remote Controller Thermistor Resistance / Temperature Characteristics Indoor unit R1T R2T R3T Outdoor unit For outdoor air For receiver liquid level For refrigerant regulator liquid pipe For subcooling heat exchanger outlet For liquid pipe For receiver gas vent outlet For suction pipe For heat exchanger deicer Radiation fin thermistor R1T TºC -10 -8 -6 -4 -2 kΩ 88.0 79.1 71.1 0 2 4 6 8 64.1 57.8 52.3 47.3 42.9 10 12 14 16 18 38.9 35.3 32.1 29.2 26.
Troubleshooting by Remote Controller SiBE341027 Outdoor Unit Thermistors for Discharge Pipe (R3T, R31∼33T) T°C kΩ T°C kΩ T°C kΩ T°C kΩ T°C kΩ T°C kΩ 0 640.44 0.5 624.65 50 72.32 50.5 70.96 100 13.35 100.5 13.15 1 609.31 1.5 594.43 51 69.64 51.5 68.34 101 12.95 101.5 12.76 2 579.96 2.5 565.78 52 67.06 52.5 65.82 102 12.57 102.5 12.38 3 552.00 3.5 538.63 53 64.60 53.5 63.41 103 12.20 103.5 12.01 4 525.63 4.5 512.97 54 62.24 54.5 61.
SiBE341027 CHECK 12 Troubleshooting by Remote Controller Pressure Sensor Detected Pressure PH = 1.38VH-0.69 PL = 0.57VL-0.
Troubleshooting by Remote Controller CHECK 13 SiBE341027 Broken Wire Check of the Connecting Wires 1.
SiBE341027 CHECK 14 Troubleshooting by Remote Controller Master Unit Central Connector Setting Table The master unit central setting connector (CN1/X1A) is mounted at the factory. • To independently use a single unit of the intelligent Touch Controller or a single unit of the centralized remote controller, do not dismount the master unit central setting connector (i.e., use the connector with the factory setting unchanged).
Troubleshooting by Remote Controller CHECK 15 SiBE341027 Master-Slave Unit Setting Table Combination of intelligent Touch Controller and Centralized Remote Controller Master #1 Slave #2 ∗ #3 #1 Pattern #4 #2 #3 #4 1-00~4-15 Master/ Slave 5-00~8-15 Master/ Slave 1-00~4-15 Master/ Slave 5-00~8-15 Master/ Slave CRC Master CRC Master CRC Slave CRC Slave CRC Master — — CRC Slave — — intelligent Touch Controller Master — — intelligent Touch Controller Slave —
SiBE341027 Part 7 Appendix 1. Piping Diagrams..................................................................................196 2. Wiring Diagrams..................................................................................199 3. Accessories.........................................................................................202 3.1 Optional Accessories............................................................................
FILTER VALVE CHECK VALVE SOLENOID STRAINER GAS PIPE LIQUID PIPE FILTER S2NPH VALVE CHECK SOLENOID VALVE CHECK VALVE UNIT MIXING SV VALVE SOLENOID (CONTROL) PIPE HEAT S2PH EXCHANGER SWITCH HIGH PRESSURE VALVE SOLENOID SV FILTER CHECK SOLENOID VALVE VALVE SV FILTER VALVE SV SOLENOID SOLENOID VALVE CHECK VALVE REFRIGERANT REGULATOR PRESSURE REGULATING VALVE PRESSURE SENSOR FUSIBLE (HIGH, LIQUID PIPE) PLUG SV SV VALVE (LOW) SENSOR PRESSURE FILTER VALVE SOLENOID CAPILLAR
STRAINER FILTER VALVE CHECK SOLENOID VALVE GAS PIPE LIQUID PIPE FILTER S2NPH VALVE CHECK MIXING UNIT CHECK VALVE SOLENOID VALVE VALVE SOLENOID CHECK SOLENOID VALVE VALVE SV FILTER SV SOLENOID VALVE SWITCH (CONTROL) PIPE HEAT EXCHANGER S3PH HIGH PRESSURE SOLENOID SV VALVE VALVE SOLENOID CHECK VALVE REFRIGERANT REGULATOR PRESSURE REGULATING VALVE PRESSURE SENSOR FUSIBLE (HIGH, LIQUID PIPE) PLUG SV SV VALVE SV FILTER PRESSURE SENSOR (LOW) STRAINER SOLENOID VALVE CAPILLARY TUBE
STRAINER FILTER CHECK VALVE SOLENOID VALVE GAS PIPE LIQUID PIPE FILTER SV REFRIGERANT REGULATOR CHECK SOLENOID VALVE VALVE SOLENOID VALVE SOLENOID SV CHECK SOLENOID VALVE VALVE SV SOLENOID VALVE HIGH PRESSURE SWITCH (CONTROL) PIPE HEAT EXCHANGER S4PH SV VALVE MIXING UNIT PRESSURE REGULATING VALVE CHECK VALVE CHECK VALVE SV SOLENOID VALVE OIL REGULATOR PRESSURE SENSOR (LOW) S1NPL PRESSURE SENSOR FUSIBLE PLUG (HIGH, LIQUID PIPE) S2NPH FILTER FILTER COMPRESSOR INV HIGH PRESSURE SWIT
X1M L1 L2 L3 N A3P F400U K4M K3R X401A X402A X403A A2P K2R K4R 2 4 K5R X7A X8A K6R 1 3 X23A 2 4 X1A NOTE) 4. HAP X9A F1U MS 3~ M1F MS 3~ M1C 5 A2P L1R X3A A9P A1P X1M (FRONT) X1M X1A X2A EL.COMPO.BOX OUTER SHELL TERMINAL OF M1C,M2C W U V LAYOUT OF M1C,M2C,M1F EL.COMPO.
X1M L1 L2 L3 N L1 L2 L3 N RS T K2M UVW Z8C N=5 Z7C K4M X403A X402A 1 3 K4R 2 4 K5R X7A X8A K6R K2R 1 3 X23A 2 4 X1A NOTE) 4. HAP X9A F1U N1 MS 3~ M1F MS 3~ 5 5 X2A R10 - X4A V1R X2A A6P K2M A2P A4P L1R X3A A9P A1P X1M (FRONT) X1M X1A X2A EL.COMPO.BOX OUTER SHELL TERMINAL OF M1C, M2C W U V LAYOUT OF M1C, M2C, M1F EL.COMPO.
A3P Z6C F400U X402A K4M K3R X401A X403A A4P Z1F X400A K3R K2R K1R RED WHT BLK 3 2 4 1 3 X23A X7A X8A 2 4 NOTE) 4. 2. 3. X1A HAP X9A F1U A4P L1R X5A A6P A8P A9P K2M K3M (FRONT) X1M A1P X1A X3A A2P X1M X2A X4A EL.COMPO.BOX OUTER SHELL M1C M2C M3C TERMINAL OF M1C~M3C W U V LAYOUT OF M1C~M3C, M1F, M2F M2F M1F EL.COMPO.BOX A5P : FIELD WIRING. : TERMINAL STRIP : CONNECTOR A7P A3P : TERMINAL : PROTECTIVE EARTH (SCREW) (BACK) 4.
Accessories SiBE341027 3. Accessories 3.1 Optional Accessories Series Model V RV I I I RQYQ14PY1B RQYQ16PY1B RQYQ8PY1B RQYQ10PY1B RQYQ12PY1B RQYQ18PY1B RQYQ20PY1B RQYQ22PY1B Option name Cool/Heat selector Fixing box D i s t r i b u t i v e REFNET header piping REFNET joint KRC19–26A KJB111A KHRP26M22H(Max. 4 branch), KHRP26M33H(Max. 8 branch) KHRP26M72H(Max. 8 branch) K H R P 2 6 A 2 2 T, K H R P 2 6 A 3 3 T, K H R P 2 6 A 7 2 T KHRP26M22H(Max. 4 branch) KHRP26M33H(Max.
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