FILE NO.
FILE NO. SVM-11015 CONTENTS 1. SAFETY PRECAUTIONS .......................................................................... 2 2. SPECIFICATIONS ..................................................................................... 4 3. REFRIGERANT R410A ............................................................................. 6 4. CONSTRUCTION VIEWS ........................................................................ 14 5. WIRING DIAGRAM .............................................................
FILE NO. SVM-11015 1. SAFETY PRECAUTIONS For general public use Power supply cord of outdoor unit shall be more than 1.5 mm2 (H07RN-F or 60245IEC66) polychloroprene sheathed flexible cord. • • • • Read this “SAFETY PRECAUTIONS” carefully before servicing. The precautions described below include the important items regarding safety. Observe them without fail. After the servicing work, perform a trial operation to check for any problem.
FILE NO. SVM-11015 • DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS. FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION. • TO PREVENT THE INDOOR UNIT FROM OVERHEATING AND CAUSING A FIRE HAZARD, PLACE THE UNIT WELL AWAY (MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEAT REGISTORS, FURNACE, STOVES, ETC.
FILE NO. SVM-11015 2. SPECIFICATIONS 2-1.
FILE NO. SVM-11015 2-2.
FILE NO. SVM-11015 3. REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC (R410A) which does not damage the ozone layer. The working pressure of the new refrigerant R410A is 1.6 times higher than conventional refrigerant (R22).
FILE NO. SVM-11015 Table 3-2-1 Thicknesses of annealed copper pipes Thickness (mm) Nominal diameter Outer diameter (mm) R410A R22 1/4 6.35 0.80 0.80 3/8 9.52 0.80 0.80 1/2 12.70 0.80 0.80 5/8 15.88 1.00 1.00 2. Joints For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants. a) Flare Joints Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm.
FILE NO. SVM-11015 d) Flare Processing Make certain that a clamp bar and copper pipe have been cleaned. By means of the clamp bar, perform the flare processing correctly. Use either a flare tool for R410A or conventional flare tool. Flare processing dimensions differ according to the type of flare tool. When using a conventional flare tool, be sure to secure “dimension A” by using a gauge for size adjustment. ØD A Fig.
FILE NO. SVM-11015 Table 3-2-6 Flare and flare nut dimensions for R22 Dimension (mm) Nominal diameter Outer diameter (mm) Thickness (mm) A B C D Flare nut width (mm) 1/4 6.35 0.8 9.0 9.2 6.5 13 17 3/8 9.52 0.8 13.0 13.5 9.7 20 22 1/2 12.70 0.8 16.2 16.0 12.9 20 24 5/8 15.88 1.0 19.7 19.0 16.0 23 27 3/4 19.05 1.0 23.3 24.0 19.2 34 36 45˚ 6˚ to 4 B A C 43˚ D to 4 5˚ Fig. 3-2-2 Relations between flare nut and flare seal surface 2.
FILE NO. SVM-11015 3-3. Tools 3-3-1. Required Tools The service port diameter of packed valve of the outdoor unit in the air-water heat pump using R410A is changed to prevent mixing of other refrigerant. To reinforce the pressure-resisting strength, flare processing dimensions and opposite side dimension of flare nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.
FILE NO. SVM-11015 3-4. Recharging of Refrigerant When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps. Recover the refrigerant, and check no refrigerant remains in the equipment. When the compound gauge’s pointer has indicated –0.1 Mpa (–76 cmHg), place the handle Low in the fully closed position, and turn off the vacuum pump’s power switch. Connect the charge hose to packed valve service port at the outdoor unit’s gas side.
FILE NO. SVM-11015 1. Be sure to make setting so that liquid can be charged. 2. When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down. It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant. Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the cylinder upside down if cylinder is not equipped with siphon.
FILE NO. SVM-11015 2. Characteristics required for flux • Activated temperature of flux coincides with the brazing temperature. • Due to a wide effective temperature range, flux is hard to carbonize. • It is easy to remove slag after brazing. • The corrosive action to the treated metal and brazing filler is minimum. • It excels in coating performance and is harmless to the human body.
FILE NO. SVM-11015 4. CONSTRUCTION VIEWS 790 4-1. Indoor Unit Air filter Air inlet 205 Plasma purifier 63 48 Air ionizer Knock out system 48 Knock out system 7 Heat exchanger 48 62 69 481 Installation plate hanger 193 188 116 Installation plate hanger Drain hose (0.50m) Connecting pipe (0.35m) (For 10,13 Series : Flared 9.52mm) (For 16 Series : Flared 12.7mm) Connecting pipe (0.40m) (Flared 6.35mm) 621 235 215 84.
FILE NO. SVM-11015 4-2. Outdoor Unit 600 125 A R15 29 108 29 50 36 330 316 6 hole 106 330 316 A detail drawing (Back leg) 330 R5.5 R15 6 hole 25 Drain outlet (For 8- 2- 11x14 Hole 10 anchor bolt) 11x14 hole B 36 50 B detail drawing (Front leg) FAN-GUARD 440 COVER-PV 318 630 View Z 299 100 600 330 69 99 351 Electrical part Gas side (10,13 : Flare 9.52) (16 : Flare 12.70) 54 137 92 Liquid side (Flare 6.
FILE NO. SVM-11015 5.
FILE NO. SVM-11015 6. SPECIFICATIONS OF ELECTRICAL PARTS 6-1. Indoor Unit Part s n ame No. 1 Fan motor (for indoor) 2 Type Specif icat io ns MF-340-30-3 DC310V, 30W Room temp. sensor (TA-sensor) (- ) 10kΩ at 25°C 3 Heat exchanger temp. sensor (TC-sensor) (- ) 10kΩ at 25°C 4 Louver motor 24BYJ48-HT Output (Rated) 1W, 16 poles, DC12V 6-2. Outdoor Unit Parts name No.
FILE NO. SVM-11015 7. REFRIGERANT CYCLE DIAGRAM 7-1. Refrigerant Cycle Diagram INDOOR UNIT T1 Temp. measurement Indoor heat exchanger P Pressure measurement Gauge attaching port Vacuum pump connecting port TA Deoxidized copper pipe Outer dia. : 6.35mm Thickness : 0.8mm Sectional shape of heat insulator Deoxidized copper pipe Outer dia. : 9.52mm (10,13) : 12.7mm (16) Thickness : 0.8mm Allowable pipe length Cross flow fan Allowable height difference : 10m TC Max. : 25m Min.
FILE NO. SVM-11015 7-2. Operation Data Tempeature Model name Standard condition(°C) RAS- pressure Indoor Outdoor 27/19 35/- Heat exchanger Indoor Outdoor Compressor pipe temp. fan mode fan mode revolution P (MPa) T1 (°C) T2 (°C) 10SKVP2-E 0.9 to 1.1 12 to 14 40 to 42 13SKVP2-E 0.8 to 1.0 8 to 10 41 to 43 16SKVP2-E 0.7 to 0.9 7 to 9 42 to 44 Tempeature Model name Standard Heat exchanger condition(°C) RAS- pressure pipe temp.
FILE NO. SVM-11015 8. CONTROL BLOCK DIAGRAM 8-1. Indoor Unit Indoor Unit Control Unit M.C.U.
– 21 – Heat exchanger temp.sensor Suction temp. sensor Outdoor air temp. sensor Discharge temp. sensor Noise Filter Indoor unit send/receive circuit 220–240 V ~50Hz 220− 230V ~60Hz For INDOOR UNIT Relay circuit 4-way valve P.M.V. Converter (AC → DC) Driver circuit of P.M.V.
FILE NO. SVM-11015 9.
FILE NO. SVM-11015 9-2. Operation Description 1. Basic operation ........................................................................................................... 24 1. Operation control ................................................................................................... 24 2. Cooling/Heating operation ..................................................................................... 25 3. AUTO operation ............................................................................
FILE NO. SVM-11015 Item Operation flow and applicable data, etc. 1. Basic operation Description 1. Operation control Receiving the user’s operation condition setup, the operation statuses of indoor/outdoor units are controlled. 1) The operation conditions are selected by the remote controller as shown in the below. 2) A signal is sent by ON button of the remote controller. 3) The signal is received by a sensor of the indoor unit and processed by the indoor controllers as shown in the below.
FILE NO. SVM-11015 Item 1. Basic operation Operation flow and applicable data, etc. Description 2. Cooling/Heating operation The operations are performed in the following parts by controls according to cooling/heating conditions. 1) Receiving the operation ON signal of the remote controller, the cooling or heating operation signal starts being transferred form the indoor controller to the outdoor unit. 2) At the indoor unit side, the indoor fan is operated according to the contents of “2.
FILE NO. SVM-11015 Item Operation flow and applicable data, etc. 2. Indoor fan motor control Description (This operation controls the fan speed at indoor unit side.) The indoor fan (cross flow fan) is operated by the phasecontrol induction motor. The fan rotates in 5 stages in MANUAL mode, and in 5 stages in AUTO mode, respectively. (Table 1) UH H M+ M L+ L LUL SUL COOL ON Fan speed setup MANUAL (Fig.
FILE NO. SVM-11015 Item Operation flow and applicable data, etc. 2. Indoor fan motor control Description 1) When setting the fan speed to L, L+, M, M+ or H on the remote controller, the operation is performed with the constant speed shown in Fig. 3 and Table 1. 2) When setting the fan speed to AUTO on the remote controller, revolution of the fan motor is controlled to the fan speed level shown in Fig. 5 according to the set temperature and room temperature.
FILE NO. SVM-11015 Item 3. Outdoor fan motor control Operation flow and applicable data, etc. Description The blowing air volume at the outdoor unit side is controlled. Receiving the operation command from the controller of indoor unit, the controller of outdoor unit controls fan speed. * For the fan motor, a DC motor with non-stage variable speed system is used. However, it is limited to 8 stages for reasons of controlling.
FILE NO. SVM-11015 Item 4. Capacity control Operation flow and applicable data, etc. Description The cooling or heating capacity depending on the load is adjusted. According to difference between the setup value of temperature and the room temperature, the capacity is adjusted by the compressor revolution. 1) The difference between set temperature on remote controller (Ts) and room temperature (Ta) is calculated.
FILE NO. SVM-11015 Item Operation flow and applicable data, etc. Indoor heat exchanger temperature 6. Release protective control by tempera- (Prevent-freezing control for indoor heat exchanger) ture of indoor heat In cooling/dry operation, the sensor of indoor heat exchanger exchanger detects evaporation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value.
FILE NO. SVM-11015 Item Operation flow and applicable data, etc. 7. Defrost control (This function removes frost adhered to the outdoor (Only in heating heat exchanger.) operation) The temperature sensor of the outdoor heat exchanger (Te sensor) judges the frosting status of the outdoor heat exchanger and the defrost operation is performed with 4-way valve reverse defrost system.
FILE NO. SVM-11015 Item Operation flow and applicable data, etc. Description 8. Louver control This function controls the air direction of the indoor unit. 1) Louver • The position is automatically controlled according to the operation position mode (COOL/HEAT). • The set louver position is stored in memory by the microcomputer, and the louver returns to the stored position when the next operation is performed.
FILE NO. SVM-11015 Item 9. ECO operation Operation flow and applicable data, etc. Description When pressing [ECO] button on the remote controller, a Economic operation is performed. This function operates the air conditioner with the difference between the set and the room temperature as shown in the following figure. Zone Frequency 12 11 10 9 8 7 6 5 4 3 2 +6.5 +6.0 +5.5 +5.0 +4.5 +4.0 +3.5 +3.0 +2.5 +2.0 +1.5 +1.0 1 +0.
FILE NO. SVM-11015 Item Operation flow and applicable data, etc. Description 10. Temporary Pressing [RESET] button starts the temporary operaoperation tion of [AUTO] operation. When keeping [RESET] button pressed for 10 seconds or more, the temporary [COOL] operation is performed. YES Filter lamp ON Press RESET button.
FILE NO. SVM-11015 Item Operation flow and applicable data, etc. 1. Purpose The air purifying control function is to alert the user to trouble in the ionizing or air purifying operation. 11. Air purifying control [Detection of abnormality] Purifying operation YES 2. Description Trouble is determined to have occurred (indicated by the FILTER indicator) in the following four cases.
FILE NO. SVM-11015 Item Operation flow and applicable data, etc. Description 13. Pulse Modulating valve (P.M.V.) control This function controls throttle amount of the refrigerant in the refrigerating cycle. According to operating status of the air conditioner, this function also controls the open degree of valve with an expansion valve with pulse Modulation. 1) When starting the operation, move the valve once until it fits to the stopper. (Initialize) * In this time, “Click” sound may be heard.
FILE NO. SVM-11015 Item Description Operation flow and applicable data, etc. 14. Self-Cleaning function Unit now performing cooling or dry operation Press “STOP” button Only timer indicator lights, and Self Cleaning operation starts 1. Purpose The Self-Cleaning operation is to minimize the growth of mold, bacteria etc. by running the fan and drying so as to keep the inside of the air conditioner clean.
FILE NO. SVM-11015 Item Operation flow and applicable data, etc. Description • Self-Cleaning diagram 14. Self-Cleaning function Operation display ON OFF OFF FCU fan ON rpm is depend on presetting. ON (500RPM) OFF FCU louver OPEN OPEN (12.7º) CLOSE Timer display ON or OFF depend on presetting of timer function. ON ON or OFF depend on presetting of timer function. Compressor ON or OFF depend on presetting per room temperature.
FILE NO. SVM-11015 Item 16. QUIET mode Description Operation flow and applicable data, etc. When the [QUIET] selected form [Fan] button, the fan of the indoor unit will be restricted the revolving speed at speed L − until the [Fan] button is selected other speed (cancel Quiet mode). Quiet mode is the system which, control the revolving speed of indoor fan to work constantly at lower than speed L. In addition, noise level of indoor unit is less than usual. Remarks : 1.
FILE NO. SVM-11015 Item 19. One-Touch Comfort Operation flow and applicable data, etc. One touch comfort is the fully automated operation that is set according to the preferable condition in a region. 0 * AUTO/L 12 L 25 Operation condition for model to Europe market When an indoor unit receives "One Touch Comfort Signal" from the remote controller, the indoor unit operates as following. 1) Air conditioner starts to operation when the signal is received, even if the air conditioner was OFF.
FILE NO. SVM-11015 Item 22. POWER Selection Mode Operation flow and applicable data,etc ([POWER-SEL] button on the remote controller is pressed) Description . • When the level is selected, Power-SEL level flashes on LCD display for 3 seconds. In case of 75% and 50% The function is used when its circuit breaker is level, number "75" or "50" also flashes shared with other electrical appliances. for 2 seconds. It limits the maximum current/ power consumption to 100%, 75% or 50%.
FILE NO. SVM-11015 9-3. Auto Restart Function This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down. The operation will resume without warning three minutes after power is restored. This function is not set to work when shipped from the factory. Therefore it is necessary to set it to work. 9-3-1.
FILE NO. SVM-11015 9-3-2. How to Cancel the Auto Restart Function To cancel auto restart function, proceed as follows : Repeat the setting procedure : the unit receives the signal and beeps three times. The unit will be required to be turned on with the remote controller after the main power supply is turned off. • When the system is on stand-by (not operating) Operation Motions Press [RESET] button for more than three seconds. (Less than 10 seconds) The unit is on standby. ↓ The unit starts to operate.
FILE NO. SVM-11015 9-4. Remote control 9-4-1. Remote control and its functions 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Infrared signal emitter Memory and preset button (PRESET) Start/Stop button Temperature up/down and Timer or clock up/down button (TEMP.
FILE NO. SVM-11015 4. DRY OPERATION (COOLING ONLY) For dehumidification, a moderate cooling performance is controlled automatically. 1. Press : Select Dry . 2. Press : Set the desired temperature. 5. AIR PURIFYING OPERATION (RAS-10,13,16SKVR-E Only) During air conditioner operation Press PURE to start and air ionizer operation.
FILE NO. SVM-11015 Note: · Keep the remote control in accessible transmission to the indoor unit; otherwise, the time lag of up to 15 minutes will occur. · The setting will be saved for the next same operation. 10. PRESET OPERATION Set your preferred operation for future use. The setting will be memorized by the unit for future operation (except air flow direction). 1. Select your preferred operation. 2. Press and hold for 3 seconds to memorize the setting. The displays. : Operate the preset operation. 3.
FILE NO. SVM-11015 9-4-3. Name and Functions of Indications on Remote Controller [Display] All indications, except for the clock time indicator, are displayed by pressing the 1 2 3 4 5 6 Transmission mark This transmission mark indicates when the remote controller transmits signals to the indoor unit. Mode indicator Indicates the current operation mode. (AUTO : Automatic control, A : Auto changeover : Cool, : Dry, : Heat) control, 7 Temperature indicator Indicates the temperature setting.
FILE NO. SVM-11015 10. INSTALLATION PROCEDURE 170 mm or m 65 mm or more 10-1. Installation Diagram of Indoor and Outdoor Units o re Ho o Air fil For the rear left and left piping Hook 1 170 k Installation plate mm o rm o re Wall Insert the cushion between the indoor unit and wall, and tilt the indoor unit for better operation. ter Do not allow the drain hose to get slack. (A tta c 5 Filter ht ot he fro n tp an el . ) 6 Make sure to run the drain hose sloped downward.
FILE NO. SVM-11015 10-2. Installation 10-2-1. Optional installation parts Part Code Parts name Refrigerant piping Liquid side : ∅6.35 mm Gas side : ∅9.52 mm (10,13SKVP2 Series) ∅12.70 mm (16SKVP2 Series) A B Pipe insulating material (polyethylene foam, 6 mm thick) C Putty, PVC tapes Q'ty One each 1 One each Fixing bolt arrangement of outdoor unit 125 mm Ø25 mm Air inlet 121 mm 108 mm 106 mm 330 mm 29 mm Air outlet 600 mm 99 mm Drain outlet Fig.
FILE NO. SVM-11015 10-2-2. Accessory and installation parts Part No. Part name (Q’ty) 1 Part No. Part name (Q’ty) 4 Installation plate x 1 2 8 Others Flat head wood screw ∅3.1 x 16 s x 2 TOSHIBA New IAQ filter x 1 6 Battery x 2 Mounting screw ∅4 x 25 s x 6 Remote control holder x 1 Wireless remote control x 1 Part name (Q’ty) 7 5 3 Part No.
FILE NO. SVM-11015 10-2-3. Installation/Servicing Tools Changes in the product and components In the case of an air conditioner using R410A, in order to prevent any other refrigerant from being charged accidentally, the service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch) • In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite side of flare nuts has been changed.
FILE NO. SVM-11015 10-3-2. Cutting a Hole and Mounting Installation Plate 10-3. Indoor Unit 10-3-1. Installation Place • A place which provides enough spaces around the indoor unit as shown in the diagram. • A place where there are no obstacle near the air inlet and outlet. • A place which allows easy installation of the piping to the outdoor unit. • A place which allows the front panel to be opened. • The indoor unit shall be installed as top of the indoor unit comes to at least 2 m height.
FILE NO. SVM-11015 When the installation plate is directly mounted on the wall 1. Securely fit the installation plate onto the wall by screws with the upper and lower catches, that hold the indoor unit, facing out. 2. To mount the installation plate on a concrete wall use anchor bolts. Drill the anchor bolt holes as illustrated in the above figure. 3. Install the installation plate horizontally and level. 10-3-3. Electrical Work 1.
FILE NO. SVM-11015 CAUTION 1. Die-cutting front panel slit Cut out the slit on the left or right side of the front panel for the left or right connection and the slit on the bottom left or side of thefront panel for the bottom left or right connection with a pair of nippers. • Be sure to refer to the wiring system diagram labeled inside the front panel. • Check local electrical regulations for any specific wiring instructions or limitations. Cord clamp 2.
FILE NO. SVM-11015 2. Firmly insert drain cap. Left-hand connection with piping No gap Insert a hexagon wrench (Ø4mm) Do not apply lubricating oil (refrigerant machine oil) when inserting the drain cap. If applied, deterioration and drain leakage of the drain plug may occur. Bend the connecting pipes so that they are positioned within 43 mm above the wall surface. If the connecting pipes are positioned more than 43 mm above the wall surface, the indoor unit may be unstable.
FILE NO. SVM-11015 10-3-7. Drainage CAUTION 1. Run the drain hose at a downward sloped angle. • Bind the auxiliary pipes (two) and connecting cable with facing tape tightly. In case of leftward piping and rear-leftward piping, bind the auxiliary pipes (two) only with facing tape. NOTE : • Hole should be made at a slight downward slant on the outdoor side. Do not rise the drain hose. Indoor unit Auxiliary pipes Connecting cable Do not form the drain hose into the waved shape.
FILE NO. SVM-11015 10-4. Outdoor Unit Precautions for adding refrigerant 10-4-1. Installation Place • A place which provides enough space around the outdoor unit as shown in the diagram. • A place which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration. • A place where the operation noise and discharged air do not disturb neighbors. • A place which is not exposed to a strong wind. • A place free of combustible gases.
FILE NO. SVM-11015 Tightening Connection Use a vacuum pump Align the centers of the connecting pipes and tighten the flare nut as much as possible with your fingers. Then tighten the nut with a wrench and torque wrench as shown in the figure. Half union Flare nut Externally threaded side Internally threaded side Use a wrench to secure. Use a torque wrench to secure. Fig. 10-4-7 CAUTION • Do not apply excessive force. Otherwise, the nut may break. (Unit : N·m) Outer dia.
FILE NO. SVM-11015 10-4-2. Draining the Water 10-4-3. Refrigerant Piping Connection • Holes are provided on the base plate of the outdoor unit to ensure that the defrost water produced during heating operations is drained off efficiently. If a centralized drain is required when installing the unit on a balcony or wall, follow the steps below to drain off the water. 1. Proceed with water-proofing by installing the water-proof rubber caps in the 2 elongated holes on the base plate of the outdoor unit.
FILE NO. SVM-11015 Revi110 Packed Valve handling precautions • Open the valve stem all the way; but do not try to open it beyond the stopper. • Securely tighten the valve stem cap with torque in the following table: 1 2 3 40 30 Gas side (Ø12.7 mm) 50 to 62 N•m (5.0 to 6.2 kgf•m) Gas side (Ø9.52 mm) 33 to 42 N•m (3.3 to 4.2 kgf•m) Liquid side (Ø6.35 mm) 14 to 18 N•m (1.4 to 1.8 kgf•m) Service port 14 to 18 N•m (1.4 to 1.
FILE NO. SVM-11015 10-5-4. Remote Controller A or B Selection Setting 10-5. Test Operation 10-5-1. Gas Leak Test When two indoor units are installed in the separated rooms, it is not necessary to change the selector switches. • Check the flare nut connections for gas leaks with a gas leak detector and/or soapy water. Remote control A or B Selection Check places for the indoor unit.
FILE NO. SVM-11015 11. HOW TO DIAGNOSE THE TROUBLE The pulse motor circuits are mounted to both indoor and outdoor units. Therefore, diagnose troubles according to the trouble diagnosis procedure as described below. (Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.) Table 11-1 No. Troubleshooting Procedure Page No.
FILE NO. SVM-11015 CAUTION A high voltage (equivalent to the supply voltage) is also energized to ground through the sensors, PMV and other low-voltage circuits. The sensor leads and other wires are covered with insulated tubes for protection. Nevertheless, care must be taken to ensure that these wires are not pinched. Take sufficient care to avoid directly touching any of the circuit parts without first turning off the power.
FILE NO. SVM-11015 11-1. First Confirmation 11-1-1. Confirmation of Power Supply Confirm that the power breaker operates (ON) normally. 11-1-2. Confirmation of Power Voltage Confirm that power voltage is AC 220–230–240 ± 10%. If power voltage is not in this range, the unit may not operate normally. 11-1-3. Operation Which is not a Trouble (Program Operation) For controlling the air conditioner, the program operations are built in the microcomputer as described in the following table.
FILE NO. SVM-11015 11-2. Primary Judgment To diagnose the troubles, use the following methods. 1) Judgment by flashing LED of indoor unit 2) Self-diagnosis by service check remote controller 3) Judgment of trouble by every symptom Firstly use the method 1) for diagnosis. Then, use the method 2) or 3) to diagnose the details of troubles. 11-3.
FILE NO. SVM-11015 11-4. Self-Dia gnosis by Remote Controller (Check Code) 1. If the lamps are indicated as shown B to E in Table 11-4-1, execute the self-diagnosis by the remote controller. 2. When the remote controller is set to the service mode, the indoor controller diagnoses the operation condition and indicates the information of the self-diagnosis on the display of the remote controller with the check codes.
FILE NO. SVM-11015 11-4-2. Caution at Servicing 1. After servicing, press the [ ] button to return to the normal mode. 2. After servicing by the check code, turn off breaker of the power supply, and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status. However, the check codes are not deleted even if the power supply is turned off because they are stored in the fixed memory. 3.
FILE NO. SVM-11015 Block distinction Check code Block Operation of diagnosis function Check code Air conditioner status Cause of operation Remarks Judgment and action Inverter over-current protective circuit operates. (Short time) All off Displayed when error is detected. Even if trying operation again, all operations stop immediately. : Replace P.C. board. Position-detect circuit error or short-circuit between windings of compressor All off Displayed when error is detected. 1.
FILE NO. SVM-11015 11-5. Judgment of Trouble by Every Symptom 11-5-1. Indoor Unit (Including Remote Controller) (1) Power is not turned on (Does not operate entirely) 1. Is the supply voltage normal? 2. Is the normal voltage provided to the outdoor unit? 3. Is the crossover cable connected properly? 4. Is the fuse (F01) blown? Operation Check Item Considerable principle cause Turn off power supply once, and 5 second later, turn it on again.
FILE NO. SVM-11015 (3) Only the indoor motor fan does not operate 1. Is it possible to detect the power supply voltage (AC220–240V) between Q and R on the terminal block? 2. Does the indoor fan motor operate in cooling operation? (In heating operation, the indoor fan motor does not operate for approximately 10 minutes after it is turned on, to prevent a cold air from blowing in.) Turn off power supply once, and turn it on again.
FILE NO. SVM-11015 (4) Indoor fan motor automatically starts to rotate by turning on power supply (For DC fan motor) The IC is built in the indoor fan motor. Therefore the P.C. board is also mounted to inside of the motor. If the P.C. board is soldered imperfectly or the IC is defective, the fan motor may automatically rotate by turning on power supply. 1. Remove the front panel. (Remove 2 screws.) 2. Remove the cover of the fan motor lead wires. 3.
FILE NO. SVM-11015 (5) Troubleshooting for remote controller Check that A or B selected on the main unit is matched with A or B selected on the remote controller. The unit does not beep at all. Push the START/STOP button. Operation lamp on indoor unit is not indicated. NO Is transmission mark indicated? YES Is receiver on indoor unit exposed to direct sunlight? Push RESET button on remote controller with tip of pencil.
FILE NO. SVM-11015 11-5-2. Wiring Failure (Interconnecting and Serial Signal Wire) (1) Outdoor unit does not operate 1) Is the voltage between R and S of the indoor terminal block varied? Confirm that transmission from indoor unit to outdoor unit is correctly performed based upon the following diagram. NOTE: • Measurement should be performed 2 minutes and 30 seconds after starting of the operation. • Be sure to prepare a diode for judgment.
FILE NO. SVM-11015 11-6. Check Code 1C (Miswiring in indoor/outdoor units) and 1E 1C 1E Gas leakage, disconnection of TS/TC sensors (Check code 02, 1C) Discharge temp. error, gas leakage (Check code 03, 1E) Valve drive check Is coil of the pulse motor valve (P.M.V.) correctly set? NO Set it correctly. YES Is connecter of coil connected to inverter? NO Set it correctly.
FILE NO. SVM-11015 11-7. Troubleshooting 11-7-1. How to Check Whether the Air Purifier is Good or Not Turn off the power breaker once, and turn on again after 10 seconds. Does the OPERATION indicator flash? NO To item “Power supply is not turned on” Primary check YES Turn off the power breaker and remove CN41 (Micro switch connector). Short-circuit between 1 and 2 pin of CN41 at PC side, and turn on the power breaker after 10 seconds.
FILE NO. SVM-11015 11-7-2. How to Check Whether the Minus Ion Generator is Good or Not Turn off the power breaker once, and turn on again after 10 seconds. Does the OPERATION indicator flash? NO To item “Power supply is not turned on” Primary check YES Turn off the power breaker and remove CN41 (Micro switch connector). Short-circuit between 1 and 2 pin of CN41 at PC side, and turn on the power breaker after 10 seconds.
FILE NO. SVM-11015 11-8. How to Diagnose Trouble in Outdoor Unit 11-8-1. Summarized Inner Diagnosis of Inverter Assembly Table 11-8-1 Diagnosis/Process flowchart Item Contents Preparation Turn “OFF” the power supply breaker, and remove 3P connector which connects inverter and compressor. Remove connector of compressor. Check 25A fuse (Part No.F01). Check NG OK Replace fuse. • Check whether 25A fuse on the control board assembly is blown or not.
FILE NO. SVM-11015 Diagnosis/Process flowchart A Item Contents Check Check winding resistance between phases of compressor, and resistance between outdoor frames by using a tester. B Replace control board assembly. Check compressor winding resistance. NG • Is not grounded. → OK if 10MΩ or more • Is not short-circuited between windings. → OK if 0.51Ω → 0.57Ω (Check by a digital tester.) • Winding is not opened. OK Replace control board.
FILE NO. SVM-11015 (3) Check procedures Table 11-9-1 No. Procedure Check points 1 Turn off the power supply breaker and remove the P.C. board assembly from electronic parts base. Remove the connecting cables from the terminal block. Check whether or not the fuse (F01) is blown. Impulse voltage was applied or the indoor fan motor short-circuited. 2 Remove the connector of the motor and turn on the power supply breaker.
FILE NO. SVM-11015 11-9-2. P .C . Board Layout GND +12V +5V [1] Sensor characteristic table 100 Resistance value (k ) 90 80 TD 70 60 50 40 30 20 TA, TC, TO, TE, TS 10 0 0 10 20 30 40 50 Temperature (˚C) – 80 – TD TA TC TO TE TS : Discharge temp. sensor : Room temp. sensor : Heat exchanger temp. sensor : Outdoor temp. sensor : Outdoor heat exchanger temp. sensor : Suction temp.
FILE NO. SVM-11015 11-9-3. Indoor Unit (Other Parts) No. Part name 1 Room temp. (TA) sensor Heat exchanger (TC) sensor Checking procedure Disconnect the connector and measure the resistance value with tester. (Normal temp.) Temperature Sensor TA, TC (kΩ) 10°C 20°C 25°C 30°C 40°C 20.7 12.6 10.0 7.9 4.5 2 Remote controller Refer to 11-5-1. (5). 3 Louver motor 24BYJ48-HT Measure the resistance value of each winding coil by using the tester. (Under normal temp.
FILE NO. SVM-11015 11-9-5. Checking Method for Each Part Part name 1 Electrolytic capacitor (For boost, smoothing) Checking procedure 1. 2. 3. 4. 5. 6. Turn OFF the power supply breaker. Discharge all three capacitors completely. Check that safety valve at the bottom of capacitor is not broken. Check that vessel is not swollen or exploded. Check that electrolytic liquid does not blow off. Check that the normal charging characteristics are shown in continuity test by the tester. Heat sink IGBT side No.
FILE NO. SVM-11015 11-10. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 1. Symptom • Outdoor fan motor does not rotate. • Outdoor fan motor stops within several tens seconds though it started rotating. • Outdoor fan motor rotates or does not rotate according to the position where the fan stopped, etc. Remote controller check code “02 : Outdoor block, 1A : Outdoor fan drive system error” 2. Cause The following causes are considered when the outdoor fan motor does not normally rotate.
FILE NO. SVM-11015 12. HOW TO REPLACE THE MAIN PARTS WARNING • Since high voltages pass through the electrical parts, turn off the power without fail before proceeding with the repairs. Electric shocks may occur if the power plug is not disconnected. • After the repairs have been completed (after the front panel and cabinet have been installed), perform a test run, and check for smoking, unusual sounds and other abnormalities. If this check is omitted, a fire and/or electric shocks may occur.
FILE NO. SVM-11015 No. Part name Front panel Procedures Remarks 4) Press "PUSH" part under the front panel and remove hooks of the front panel from the installation plate. Installation plate Front panel Press 5) Remove the front panel fixing screws. (2 pcs.) 6) Take off three hooks of panel from rear side. 2 Screws Three hooks 1) Press three center positions and two lower center positions of the air outlet, and then hang the hanging hooks (3 pcs.
FILE NO. SVM-11015 No. Part name High voltage generator Procedures Remarks 1) Follow to the procedure in the item . 2) To remove the air ionizer from the back body, pull it toward you. 3) Disconnect the connectors of the high voltage generator. 4) Remove the fixing screws (2 pcs) and remove the high voltage generator from the evaporator.
FILE NO. SVM-11015 No. Part name Electric parts box assembly Procedures Remarks 1) Follow the procedure up to 3) in above. 2) Remove screw of earth lead attached to the end plate of the evaporator. 3) Remove the lead wire cover, and remove connector for the fan motor and connector for the louver motor from the electric parts box assembly. 4) Pull out TC sensor from sensor holder of the evaporator. 5) Disengage the display unit by simply pushing at the top of the display unit.
FILE NO. SVM-11015 No. Part name Procedures Remarks Horizontal louver 1) Remove shaft of the horizontal louver from the back body. (First remove the left shaft, and then remove other shafts while sliding the horizontal louver leftward.) Evaporator (Heat exchanger) 1) Follow to the procedure in the item . 2) Remove the pipe holder from the rear side of the main unit. 3) Remove two fixing screws at the left side of the end plate of the heat exchanger.
FILE NO. SVM-11015 No. Part name Bearing Procedures Remarks 1) Follow to the procedure in the item … . 2) Remove the two screws used to secure the bearing base. Two screws 3) Remove the bearing base. • If the bearing is out from the housing, push it into the specified position and then incorporate it in the main body.
FILE NO. SVM-11015 No. Part name Fan motor Procedures Remarks 1) Follow to the procedure till item …. 2) Loosen the set screw of the cross flow fan. 3) Remove two fixing screws of the motor cover and them remove the motor cover. 4) Remove two more fixing screws of the motor band and remove the motor band. Set screw Two Screws Two screws on motor band Motor cover 5) Pull the fan motor outward.
FILE NO. SVM-11015 No. Part name Procedures Cross flow fan 1) To incorporate the fan motor, remove the fan motor rubber (at shaft core side), incorporate the motor into the position in the following figure, and then install the fan motor. • Install the cross flow fan so that the right end of the 1st joint from the right of the cross flow fan is set keeping 70.5 mm from wall of rear plate of the main unit.
FILE NO. SVM-11015 12-2. Microcomputer No. Part name Common procedure Procedure 1) Turn the power supply off to stop the operation of air-conditioner. 2) Remove the front panel. • Remove the 2 fixing screws. 3) Remove the electrical part base. – 92 – Remarks Replace terminal block, microcomputer ass’y and the P.C. board ass’y.
FILE NO. SVM-11015 12-3. Outdoor Unit No. Part name Common procedure Remarks Procedure 1. Detachment Upper cabinet NOTE Wear gloves for this job. Otherwise, you may injure your hands on the parts, etc. 1) Stop operation of the air conditioner, and turn off the main switch of the breaker for air conditioner. 2) Remove the valve cover. (ST1TØ4 × 10L 3 pcs.) • After removing screw, remove the valve cover pulling it downward. 3) Remove cord clamp (ST2TØ4 × 14L 3 pcs.
FILE NO. SVM-11015 No. Part name Procedure Front cabinet 1. Detachment 1) Perform step 1 in . 2) Remove the fixing screws (ST1TØ4 × 10L 2 pcs.) used to secure the front cabinet and inverter cover, the screws (ST1TØ4 × 10L 4 pcs.) used to secure the front cabinet at the bottom, and the fixing screws (ST1TØ4 × 10L 2 pcs.) used to secure the motor base. • The front cabinet is fitted into the side cabinet (left) at the front left side so pull up the top of the front cabinet to remove it.
FILE NO. SVM-11015 No. Part name Inverter assembly Procedure 1) Perform work of item 1 in . 2) Remove screw (ST1TØ4 × 10L 2 pcs.) of the upper part of the front cabinet. • If removing the inverter cover in this condition, P.C. board can be checked. • If there is no space above the unit, perform work of 1 in . Remarks Inverter cover P.C. board (Soldered surface) Be careful to check the inverter because high-voltage circuit is incorporated in it.
FILE NO. SVM-11015 No. Part name Procedure Control board assembly 1. Disconnect the leads and connectors connected to the other parts from the control board assembly. 1) Leads • 3 leads (black, white, orange) connected to terminal block. • Lead connected to compressor : Disconnect the connector (3P). • Lead connected to reactor : Disconnect the two connectors (2P).
FILE NO. SVM-11015 No. Part name Side cabinet Procedure Remarks 1. Side cabinet (right) 1) Perform step 1 in and all the steps in . 2) Remove the fixing screw (ST1TØ4 × 10L 3 pcs.) used for securing the side cabinet to the bottom plate and valve fixing panel. 2. Side cabinet (left) 1) Perform step 1 in . 2) Remove the fixing screw (ST1TØ4 × 10L 1 pc.) used to secure the side cabinet (left) onto the heat exchanger. 3) Remove the fixing screw (ST1TØ4 × 10L 2 pcs.
FILE NO. SVM-11015 No. Part name Procedure Compressor 1) Perform work of item 1 of and , , , . 2) Extract refrigerant gas. 3) Remove the partition board. (ST1TØ4 × 10L 4 pcs.) 4) Remove the sound-insulation material. 5) Remove terminal cover of the compressor, and disconnect lead wire of the compressor from the terminal. 6) Remove pipe connected to the compressor with a burner. • Take care to keep the 4-way valve away from naked flames. (Otherwise, it may malfunction.
FILE NO. SVM-11015 No. Part name Electronic expansion valve coil Procedure Remarks 1. Detachment 1) Perform step 1 in , all the steps in and 1 in . 2) Remove the coil by pull it upward. 2. Attachment 1) Insert a valve coil to value body by push it downward. And confirm to fix it surely. Fan guard 1. Detachment 1) Perform work of item 1 of . 2) Remove the front cabinet, and put it down so that fan guard side directs downward.
FILE NO. SVM-11015 No. 11 Part name Procedure Remarks TE sensor (outdoor heat exchanging temperature sensor) • Attachment Install the sensor onto the straight pipe part of the condenser output pipe. Arrow D Straight Part Sensor lead Detail C Detail B Detail C Detail A 12 TS sensor (Suction pipe temperature sensor) • Attachment Install the senser onto the straight pipe part of the suction pipe. Be careful for the lead direction of the sensor.
FILE NO. SVM-11015 No. Part name Procedure 15 Replacement of temperature sensor for servicing only 1) Cut the sensor 100 mm longer than old one. 2) Cut the protective tube after pulling out it (200 mm). 3) Move the protective tube toward the thermal sensor side and tear the tip of lead wire in two then strip the covering part. 4) Pass the stripped part through the thermal constringent tube. 5) Cut the old sensor 100 mm length on the connector side, and recycle that connector.
FILE NO. SVM-11015 13. EXPLODED VIEWS AND PARTS LIST 13-1. Indoor Unit Location Part Location Part No. No. No. No.
FILE NO. SVM-11015 13-2. Indoor Unit (E-Parts Assy) 406 404 402 401 403 405 Location Part Location Part No. No. No. No.
FILE NO. SVM-11015 13-3. Outdoor Unit Location Part Location Part No. No. No. No.
FILE NO. SVM-11015 13-4. P.C. Board Layout RAS-10SAVP2-E 701 704 702 706 TE Sensor (Ø6) TS Sensor (Ø6) TD Sensor (Ø4)TO Sensor (Ø6) 707 705 703 Location Part No. No. 701 43T62320 HEATSINK 705 43T60377 TEMPERATURE SENSOR 702 43T69917 PC BOARD 706 43T50304 SENSOR;HEAT EXCHANGER 703 43T60392 TERMINAL-5P 707 43T62313 BASE-PLATE-PC 704 43T60326 FUSE Description Location Part No. No.
FILE NO. SVM-11015 13-5. P.C. Board Layout RAS-13SAVP2-E, RAS-16SAVP2-E 701 704 702 706 TE Sensor (Ø6) TS Sensor (Ø6) TD Sensor (Ø4)TO Sensor (Ø6) 707 705 703 Location Part Location Part No. No. No. No.
FILE NO. SVM-03005 TOSHIBA CARRIER (THAILAND) CO.,LTD. 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.
