SERVICE MANUAL
MULTI
PLE
TYPE
Indoor Unit
<High Wall, Heat Pump Type>
RAS-
M
10PKVPG-E
M1
3PKVPG-E
16PKVPG-E
R32
May,
2018
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FILE NO. SVM-18047
Page 1: ...SERVICE MANUAL MULTIPLE TYPE Indoor Unit High Wall Heat PumpType RAS M10PKVPG E RAS M13PKVPG E RAS M16PKVPG E R32 May 2018 U li M OOO eo o 7 i FILE NO SVM 18047 ...
Page 2: ...WIRING DIAGRAM 16 6 SPECIFICATIONS OF ELECTRICAL PARTS 17 7 REFRIGERANT CYCLE DIAGRAM 18 8 CONTROL BLOCK DIAGRAM 21 9 OPERATION DESCRIPTION 22 10 INSTALLATION PROCEDURE 57 11 HOW TO DIAGNOSE THE TROUBLE 69 12 HOW TO REPLACE THE MAIN PARTS 92 13 EXPLODED VIEWS AND PARTS LIST 101 FILE NO SVM 18047 2 ...
Page 3: ...and installation tools are different from those used for the conventional refrigerant units Accordingly special tools are required for the new refrigerant R32 units For connecting pipes use new and clean piping materials with high pressure fittings made for R32 only so that water and or dust does not enter Moreover do not use the existing piping because there are some problems with pressure fittin...
Page 4: ...GERATION CIRCUIT WILL BECOME ABNORMALLY HIGH AND IT MAY RESULT IN THE PIPE BURSTING AND POSSIBLE PER SONNEL INJURIES IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE SERVICE WORK AND THE INSTALLATION WORK IMMEDIATELY LET FRESH AIR INTO THE ROOM IF THE REFRIGERANT GAS IS HEATED SUCH AS BY FIRE GENERATION OF POISONOUS GAS MAY RESULT WARNING Never modify this unit by removing an...
Page 5: ... a room with a floor area large than Amin m2 How to get Amin m2 Amin M 2 5 x 0 22759 x h0 2 M is the refrigerant charge amount in appliance in kg h0 is the installation height of the appliance in m 0 6 m for floor standing 1 8m for wall mounted 1 0 m for window mounted 2 2 m for ceiling mounted Comply with national gas regulations CAUTION Exposure of unit to water or other moisture before installa...
Page 6: ...ow m3 min Motor output W Compressor Type Model Motor output W Outer dimension Indoor unit Height mm 293 293 293 and weight Width mm 851 851 851 Depth mm 270 270 270 Weight kg 14 14 14 Outdoor unit Height mm Width mm Depth mm Weight kg Connector pipe Indoor unit Gas side mm 9 52 9 52 12 7 Liquid side mm 6 35 6 35 6 35 Outdoor unit Gas side mm Liquid side mm Standard length Minimum length Maximum le...
Page 7: ...aces where installation repairs or similar work on air conditioning equipment is performed 3 If a refrigeration gas leakage occurs during installation servicing be sure to ventilate fully If the refrigerant gas comes into contact with fire a poisonous gas may occur 4 When installing or removing an air conditioner do not allow air moisture dust or oil to remain in the refrigeration cycle Otherwise ...
Page 8: ...joints Nominal diameter 1 4 3 8 1 2 5 8 Reference outer diameter of copper pipe jointed mm 6 35 9 52 12 70 15 88 Minimum joint thickness mm 0 50 0 60 0 70 0 80 3 2 2 Processing of Piping Materials When performing the refrigerant piping installation care should be taken to ensure that water or dust does not enter the pipe interior that no other oil than lubricating oils used in the installed air wa...
Page 9: ...0 5 0 to 0 5 0 to 0 5 0 to 0 5 Conventional flare tool Clutch type Wing nut type 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 2 0 to 2 5 1 0 to 1 5 2 0 to 2 5 Table 3 2 4 Dimensions related to flare processing for R22 Nominal diameter 1 4 3 8 1 2 5 8 Outer diameter mm 6 35 9 52 12 70 15 88 Thickness mm 0 8 0 8 0 8 1 0 A mm Flare tool for R22 clutch type 0 to 0 5 0 to 0 5 0 to 0 5 0 to 0 ...
Page 10: ...orque for R32 is the same as that for conventional R22 Incidentally when the torque is weak the gas leakage may occur When it is strong the flare nut may crack and may be made non removable When choosing the tighten ing torque comply with values designated by manufacturers Table 3 2 7 shows reference values NOTE When applying oil to the flare surface be sure to use oil designated by the manufactur...
Page 11: ...clusive tools the following equipments which serve also for R22 are necessary as the general tools 1 Vacuum pump Use vacuum pump by attaching vacuum pump adapter 2 Torque wrench For Ø6 35 Ø9 52 3 Pipe cutter 4 Reamer 5 Pipe bender 6 Level vial 7 Screwdriver 8 Spanner or Monkey wrench 9 Hole core drill Ø65 10 Hexagon wrench Opposite side 4mm 11 Tape measure 12 Metal saw Also prepare the following e...
Page 12: ...e connecting port of the electronic balance and charge liquid refrigerant Indoor unit Outdoor unit Opened Opened Refrigerant cylinder with siphon Check valve Open close valve for charging Electronic balance for refrigerant charging Opened Closed Service port 3 4 Recharging of Refrigerant When it is necessary to recharge refrigerant charge the specified amount of new refrigerant according to the fo...
Page 13: ...lver and copper It is used to join iron copper or copper alloy and is relatively expensive though it excels in solderability 2 Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy 3 Low temperature brazing filler Low temperature brazing filler is generally called solder and is an alloy of tin and lead Since it is weak in adhesive strength d...
Page 14: ...ux which does not contain chlorine 3 When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water 4 Remove the flux after brazing 3 5 3 Brazing As brazing work requires sophisticated techniques experiences based upon a theoretical knowledge it must be performed by a person qualified In order to prevent the oxide film from occurring in the pipe i...
Page 15: ...mm or more 225mm or more Remote controller holder 57 Wiress remote controller 20 193 149 17 5 63 851 270 62 64 6 62 6 64 Front panel 62 62 84 5 64 64 52 Knock out system Knock out system le iii llr 1 n _ TI MJO ID 0 o rr IU D M 293 Heat exchanger Plasma ion charger Air purifier Air filter FILE NO SVM 18047 15 114 3 141 5 150 150 150 150 109 312 Drain hose 0 6m Hanger Hanger Connecting pipe 0 66m F...
Page 16: ...5 WIRING DIAGRAM FILE NO SVM 18047 16 ...
Page 17: ...o Fan motor for indoor 2 Room temp sensor TA sensor 10kΩ at 25 C 3 Heat exchanger temp sensor TC sensor 10kΩ at 25 C 4 Louver motor Output Rated 1W 16 poles DC12V MP24Z4N Parts name 1 Specif ications Type 5 Heat exchanger temp sensor TCJ sensor 10kΩ at 25 C FILE NO SVM 18047 17 ...
Page 18: ...oss flow fan Deoxidized copper pipe Outer dia 6 35mm Thickness 0 8mm Sectional shape of heat insulator Allowable height difference 10m Allowable pipe length P Pressure measurement Gauge attaching port Vacuum pump connecting port TC TA Max Min Chargeless Charge Tcj RAS M10PKVPG E RAS M13PKVPG E Follow to service manual of outdoor unit to be combined FILE NO SVM 18047 18 ...
Page 19: ...ed copper pipe Outer dia 6 35mm Thickness 0 8mm Sectional shape of heat insulator Allowable height difference 10m Allowable pipe length P Pressure measurement Gauge attaching port Vacuum pump connecting port TC TA Tcj RAS M16PKVPG E Follow to service manual of outdoor unit to be combined Max Min Chargeless Charge FILE NO SVM 18047 19 ...
Page 20: ...e temp Indoor fan mode Outdoor fan mode Indoor Outdoor T1 C T2 C M10PKVPG E M13PKVPG E M16PKVPG E NOTES Refer to service manual of outdoor unit which combined 27 19 35 Compressor revolution rps Tempeature condition C Model name RAS Standard pressure P MPa Tempeature condition C Model name RAS Standard pressure P MPa Compressor revolution rps 20 7 6 FILE NO SVM 18047 20 ...
Page 21: ... Signal Receiver and Indication Functions Cold draft preventing Function 3 minute Delay at Restart for Compressor Fan Motor Starting Control Processing Temperature Processing Timer Weekly Timer Serial Signal Communication Clean Function Power Selection Silent CDU Fireplace 8 C Indoor Fan Motor Heat Exchanger Sensor TCJ Infrared Rays 36 7kHz Remote Controller Thermo Setting Fan Speed Selection ON T...
Page 22: ...tion command signal Serial signal from outdoor unit controller to indoor unit controller The following signals are sent from the outdoor unit controller The current operation mode The current compressor revolution Outdoor temperature Existence of protective circuit operation For transferring of these signals the indoor unit controller monitors the contents of signals and judges existence of troubl...
Page 23: ... control 37 14 Self Cleaning function 38 15 Remote A or B selection 40 21 16 QUIET mode 40 17 COMFORT SLEEP mode 40 18 Short Timer 41 19 20 Hi POWER Mode 41 23 POWER Selection Mode 42 Outdoor Quiet Control 43 Pulse Modulating valve P M V control 37 FCU Display lamp brightness control 44 22 Silent Operation 42 24 Operation mode selectable 43 25 Fireplace Operation 43 26 8 degree heating Frost prote...
Page 24: ...tup Air direction Swing Air volume select AUTO QUIET LOW LOW MED MED HIGH ECO ON timer setup OFF timer setup Hi POWER Selection of operation conditions ON OFF COMFORT SLEEP QUIET PRESET ONE TOUCH POWER SELECTION Indoor unit control Power relay signal Serial transmission Serial signal Inverter Transmission Signal receiving Outdoor unit Indoor unit control Command signal generating function for indo...
Page 25: ...operation mode the fan speed is controlled by the previous operation mode 4 DRY operation DRY operation is performed according to the difference between room temperature and the setup temperature as shown below In DRY operation fan speed is controlled in order to prevent lowering of the room temperature and to avoid air flow from blowing directly to persons 1 Detects the room temperature Ta when t...
Page 26: ... Fan speed M L x 1 4 L Linear approximation from M and L Table 1 Indoor fan air flow rate Quiet W5 of louver 1 When setting the fan speed to L L M M H or Quiet on the remote controller the operation is performed with the constant speed shown in Fig 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 2 and Tab...
Page 27: ...60 240 W4 UL 520 200 550 230 W3 SUL UL SUL SL 500 190 500 190 W2 SUL SL 480 170 480 170 W1 SL 440 140 440 140 Fan speed level Mode RAS M16PKVPG E Cooling Heating Cool Heat PAP Dry Fan speed Air flow rate Fan speed Air flow rate rpm m3 h rpm m3 h WF UH UH H 1160 750 1160 750 WE UH H 1160 750 1160 750 WD H M UH 1150 740 1010 630 WC M M H 1000 620 950 570 WB M M 950 570 860 490 WA L M M M 800 440 850...
Page 28: ...perature 3 C FAN AUTO When 25 minutes or more passed after operation start FAN Manual Room temperature Set temperature 4 C Room temperature Set temperature 3 5 C Fig 3 Fig 4 Cold draft preventive control Fig 6 Fan speed AUTO Basic fan control No limitation while fan speed MANUAL mode is in stability A When Tsc 24 A is 24 and when Tsc 24 A is Tsc Tsc Set value TSC TA C b 0 5 c 1 0 d 1 5 e 2 0 f 2 5...
Page 29: ...he difference resulted from comparison of the correction value of Hz signal with the present operation Hz the inverter output and the commuta tion timing are varied 5 Change the compressor motor speed by outputting power to the compressor The contents of control operation are same in cooling operation and heating operation Please refer Current release control of outdoor unit service manual 4 Curre...
Page 30: ...ssor speed is kept Q zone When temperature of the indoor heat exchanger drops in the range from 48 C to under 55 C the compressor speed is kept Q zone 2 When temperature of the indoor heat exchanger rises to 55 C or higher the compressor speed is reduced P zone 3 When temperature of the indoor heat exchanger does not rise to 52 C or when it drops below to 48 C the capacity control operation return...
Page 31: ...s downward 20mm Default setting is directs downward 45mm Wide air direction Wide position is directs downward 20mm Wide angle Right wide Left wide Left side lover setting is left facing 75mm Right side lover setting is right facing 75mm Left side lover setting is front facing 55mm Right side lover setting is right facing 75mm Left side lover setting is left facing 75mm Right side lover setting is ...
Page 32: ...er setting is right facing 75mm Left side lover setting is front facing 55mm Right side lover setting is right facing 75mm Left side lover setting is left facing 75mm Right side lover setting is front facing 55mm Spot air direction Wide position is directs downward 73mm Spot front Spot right Spot left Left side lover setting is left facing 55mm Right side lover setting is right facing 55mm Left si...
Page 33: ...imit 3 Swing Fixed Position before start swing Upper Limit Position Lower Limit Position 30 o 5 o Swing range 35 o Swing When pressing SWING button during operation the louver starts swinging Upper Limit Position Lower Limit Position Fixed Position before start swing 17 5 o 17 5 o Swing range 35 o Horizotal blowing Inclined blowing Inclined blowing Blowing downward Front blowing Left blowing Right...
Page 34: ... min 6 x 3 COOL min 9 DRY max COOL min 6 x 2 COOL min 8 DRY max COOL min 6 x 1 COOL min C during the ECO operation 3 5 3 0 2 5 1 5 1 0 TSC 1 0 2 0 5 5 1H 2H 11 10 7 6 5 4 3 2 1 OFF Dry Max 12 11 9 8 10 6 0 6 5 3H 4H 5 0 4 5 4 0 2 0 0 5 0 5 12 9 8 Time Zone Frequency FAN Min Hz The indoor fan speed is not controlled and can be selected Heating Operation ECO Start 30 minutes Time 0 0 Compressor stop...
Page 35: ... purifier operate Fan stop Plasma purifier OFF Louver close All stop Air conditioner operates Sending plasma purifier OFF 1 2 3 4 4 2 Air conditioner operates 1 Air conditioner stops operates Air conditioner Plasma purifier operate 1 2 Present status Stop Plasma purifier only Air conditioner Joint use of AC and plasma purifier Operation button PURE button Air conditioner Plasma purifier AC operati...
Page 36: ...n case that 1 minute passed after activation of the plasma ionizer purifier it is turned off while the PURE indicator keeps ON After 10 minutes passed restart the plasma ionizer purifier and an error is judged again When the breaker is turned ON In restart time after power failure or RESET button is pressed the air purifier is not turned on until the integrated operation time of the indoor fan exc...
Page 37: ...Pulse Modulating valve P M V control Please refer Current release control of outdoor unit service manual Please refer Current release control of outdoor unit service manual 11 Discharge temperature control Refer to the service manual of outdoor unit which combined FILE NO SVM 18047 37 ...
Page 38: ...eration performed prior to the reception of the stop code 3 After the Self Cleaning operation has been performed for the specified period the unit stops operating Unit now performing cooling or dry operation Press STOP button Only timer indicator lights and Self Cleaning operation starts Time set now elapses Operation stops function During Self Cleaning operations The louver opens slightly The ind...
Page 39: ...h 1 Hz function Timer LED Flash 1 Hz OFF flash 1 Hz not flash ON OFF ON OFF Setting diagnosis code 06 on remote controller See detail of setting diagnosis code in 14 1 1 Turn on air conditioner again by remote controller to confirm setting Turn on the power supply to air conditioner after that press RESET button on air conditioner 1 time to turn on the air conditioner The LED display will show in ...
Page 40: ... may not enough the cooling capacity or heating capacity 17 COMFORT SLEEP 15 Remote A or B selection 1 Purpose This operation is to operate only one indoor unit using one remote controller 2 Description When operating one indoor unit in a situation where two indoor units have been installed in the same room or nearby rooms this operation prevents the remote controller signal from being received si...
Page 41: ...rature on the 4 The Hi POWER mode can not be set in Dry operation The Hi POWER operation will be cancelled when press Hi POWER button again 18 Short Timer In the normal condition after switching one circuit breaker 3 minute delay time for compressor and 1 hour for plasma air purifier are set for the maintenance of the unit Purpose To start the unit immediately for the purpose of testing trial etc ...
Page 42: ... maximum Power Selection 75 is 75 of maximum current current 21 Silent Operation 2 Description 1 Purpose POWER SELECTION AND SILENT OPERATION Silent button on remote controller is pressed Silent 1 Cooling heating capacity is limited maximum for 70 of rated Only compressor speed is limited Silent 2 CDU sound level is limited for lowest CDU sound level Compressor and CDU fan speed are limited This f...
Page 43: ... the operation LED 5Hz flashes for 5 seconds Exchanging from Control to No control Beep sound is heard Operation LED does not flash Maximum number of revolution of compressor at normal time and Quiet control time RAS M10PKVPG E RAS M13PKVPG E Quiet controlled rps COOL 5 C HEAT 10 5 C 10 C Outside temp TO Normal time rps Normal time rps Quiet controlled rps 23 Operation mode selectable RAS M16PKVPG...
Page 44: ...to decrease the display lamp brightness or turn it off 1 While operating Auto Cool Heat or Dry press and hold 5 seconds Press Rise or Decrease to adjust brightness which can be set at 4 levels or to turn it off LAMP BRIGHTNESS ADJUSTMENT Rremote control LCD Operation display Brightness Lamp illuminates an operation with full brightness 100 Lamp illuminates an operation with 50 brightness 50 Lamp i...
Page 45: ...upply is OFF 2 Press the RESET button located on the front panel of the indoor unit for more than 3 seconds 3 After 3 seconds the unit beeps three times When the system is on stand by not operating When the system is operating 9 3 Auto Restart Function Default setting from factory is ON This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating wi...
Page 46: ...ate at this time press RESET button once more or use the remote controller to turn it on 9 3 2 How to Set the Auto Restart Function To set Auto Restart Function proceed as follows 1 The power supply to the unit must be ON The function will not set or reset if the power supply is OFF 2 Press the RESET button located on the front panel of the indoor unit for more than 3 seconds 3 After 3 seconds the...
Page 47: ... PRESET Start Stop button Temperature up down button TEMP Mode select button MODE Swing louver button SWING Fan speed button FAN Wide air flow spot air flow AIR FLOW Set louver button for vertical direction FIX Set louver button for Horizontal divection FIX 8 degree celcius operation and fireplace function button Economy button ECO High power button Hi POWER Plasma ionizer purifier button PURE Com...
Page 48: ...ears on the LCD Press to change the program number in the sequence program 1 to program 4 PG 1 PG 2 PG 3 4 PG 4 Press or to select the desired time The time can be set between 0 00 and 23 50 in 10 minute intervals Press and hold the button to change setting time for 1 hr Only one of ON or OFF timer can be set on each program ON timer display OFF timer display OFF timer is used to stop the air cond...
Page 49: ...the setting operation has been completed As the air conditioner is receiving the signal you will hear separate Pi sounds corresponding to the number of days in the selected setting An incomplete setting is indicated if the TIMER lamp is blinking Press twice Notes 1 Place the remote control where the indoor unit can receive the signal This will increase the accuracy of the timing between the remote...
Page 50: ...lect program number to be confirmed Resetting the operation 3 Press to exit confirming mode Deactivating WEEKLY TIMER operation Press while WEEKLY is displayed on the LCD The WEEKLY indicator will disappear from the LCD However the program will remain in the remote control again LCD shows the next The TIMER lamp goes off To reactivate the WEEKLY TIMER operation again press program The program afte...
Page 51: ... and the LCD will blink 4 Press Press to delete the program while the LCD is blinking The program has now been deleted All programs 1 Press The day of the week and the program number will be displayed 2 Press and hold for 3 seconds All programs will be deleted and LCD displays current operation Notes Make sure the remote control receiving module on the air conditioner receives the signal from the ...
Page 52: ...ress Select Cool Heat or Fan only Set the desired temperature 3 or Quiet Cooling Min 17 C Heating Max 30 C Fan Only No temperature indication Press Press Select AUTO LOW LOW MED MED HIGH Note QUIET is ultra low fan speed for quiet operation Start and stop the operation Press Press 6 PLASMA IONIZER PURIFIER OPERATION During air conditioner operation Press PURE to start and plasma ionizer purifier o...
Page 53: ...n changing the air to the vertical direction release the left side at the desired position PiPi at the lower and upper limit When changing the air to the horizontal position release the right side at the desired position PiPi sounds at the center position Changing the air direction press FIX button Every time Pi Pi PiPi Horizontal Left Right Swing Vertical Up Down Swing Up Down Left Right Swing Sw...
Page 54: ...sion 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 12 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 P mark displays 3 Pres...
Page 55: ...control air flow and automatically turn OFF Press Select 1 3 5 or 9 hrs for OFF timer operation Note The cooling operation the set temperature will increase automatically 1 degree hour for 2 hours maximum 2 degrees increase For heating operation the set temperature will decrease Note1 When the level is selected PWR SEL level flashes on remote LCD display for 3 seconds In case of 75 and 50 level num...
Page 56: ... start and press it again to stop the operation 8 PRESET indicator Flashes for 3 seconds when the PRESET button is pressed during operation The mark is shown when holding down the button for more than 3 seconds while the mark is flashing Press another button to turn off the mark 9 POWER SEL 10 A B change indicator remote controller When the remote controller switching function is set B appears in ...
Page 57: ... left Left 2 3 6 4 For the rear left and left piping Wall 1 Batteries Flat head wood screw Remote control holder Vinyl tape Apply after carrying out a drainage test Wireless remote control Shield pipe Attach to the front panel Air filter Hook Installation plate Hook 52 mm or more 190 mm or more 225 mm or more Insulate the refrigerant pipes separately with insulation not together 6 mm thick heat re...
Page 58: ...stallation parts Part Code A B C Parts name Pipe insulating material polyethylene foam 6 mm thick Putty PVC tapes Q ty One each 1 One each Refrigerant piping Liquid side Æ6 35 mm Gas side Æ9 52 mm 10k 13k Æ12 7 mm 16k FILE NO SVM 18047 58 ...
Page 59: ...0 2 2 Accessory and installation parts The part may differ from that shown The number of parts may differ by model The part is packed with the outdoor unit Cap waterproof x 2 for some models only Air filters Clean every 2 weeks 1 Open the air inlet grille 2 Remove the filters if they are on the air filter 3 Vacuum or wash and then dry them 4 Reinstall the filters and close the air inlet grille Own...
Page 60: ...have been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confirm the port size As pressure is high and gasification speed is fast it is difficult to read the indicated value by means of charging cylinder as air bubbles occur The size of opposite sides of flare nuts have been increased Incidentally a common wrench is used for nominal diameters 1 4 and 3 8 By increas...
Page 61: ...such as a stove Keep the remote control at least 1 m apart from the nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise interference The location of the remote control should be determined as shown below 10 3 2 Cutting a Hole and Mounting Installation Plate Cutting a hole When installing the refrigerant pipes from the rear 1 After determining the pipe hole p...
Page 62: ...ntal direction 10 3 3 Piping and Drain Hose Installation Piping and drain hose forming Since condensation results in machine trouble make sure to insulate both the connecting pipes separately Use polyethylene foam as insulating material Fig 10 3 7 1 Die cutting bush body slit For Bottom right Cut out the slit on bottom right side of bush body for bottom right connection with a pair of nippers For ...
Page 63: ...that it is laid within 43 mm above the wall surface If the connecting pipe is laid exceeding 43 mm above the wall surface the indoor unit may unstably be set on the wall When bending the connecting pipe make sure to use a spring bender so as not crush the pipe Refer to the table below for the bending radius of each connection pipe Outer diameter 6 35 mm 9 52 mm 12 7 mm Bending radius 30 mm 40 mm 5...
Page 64: ... 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 Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit Carefully connect the auxiliary pipes and connecting pipes to one another and cut off the insulating tape wound on the connecting pipe to avoid double ta...
Page 65: ...from the unit Improper drainage can result in dew dropping This air conditioner has the structure designed to drain water collected from dew which forms on the back of the indoor unit to the drain pan Therefore do not store the power cord and other parts at a height above the drain guide 50 mm or more Do not rise the drain hose Do not form the drain hose into the wavy shape Do not put the drain ho...
Page 66: ...ut removing the main panel Carry out attaching in the reverse order to removal Keep front panel horizontally and put both arms into guides Make sure both arms are inserted completely If the gap between main panel and front panel isn t even remove and attach again How to attach the front panel 10 4 Electrical works Check local electrical cords and also any specifi c wiring instructions or Be sure to...
Page 67: ...r must be used for the power supply line of this air conditioner 4 Be sure to comply power supply and connecting cable for size and wiring method 5 Every wire must be connected firmly 6 Perform wiring works so as to allow a general wiring capacity 7 Wrong wiring connection may cause some electrical part burn out 8 Incorrect or incomplete wiring is carried out it will cause an ignition or smoke CAU...
Page 68: ...ntrol signal is not received when the settings of indoor unit and remote control are different There is no relation between A setting B seting and A room B room when connecting the piping and cables Repeat above step to reset Remote Control to be A 1 Information 10 5 Others 10 5 1 Remote Control A B Selection Temporary switch How to set the auto restart 1 Press and hold the RESET button on the ind...
Page 69: ...rvicing written on the wiring diagrams attached to the indoor outdoor units Table 11 1 No 1 2 3 4 5 6 7 8 9 Troubleshooting Procedure First Confirmation Primary Judgment Judgment by Flashing LED of Indoor Unit Self Diagnosis by Remote Controller Check Code Judgment of Trouble by Every Symptom Check Code 1C and 1E Troubleshooting How to Diagnose Trouble in Outdoor Unit How to Check Simply the Main ...
Page 70: ...ate even if the room temperature is within range of compressor ON In Dry and ECO mode FAN air flow display does not change even though FAN air flow select button is operated In AUTO mode the operation mode is changed Description The OPERATION lamp of the indoor unit flashes when power source is turned on If button is operated once flashing stops Flashes also in power failure The compressor does no...
Page 71: ...a part of item E occur concurrently priority is given to the block of item B 3 The check codes can be confirmed on the remote controller for servicing OPERATION Flashing display 1 Hz OPERATION TIMER Flashing display 5 Hz OPERATION Flashing display 5 Hz OPERATION TIMER White Flashing display 5 Hz OPERATION Flashing display 5 Hz Protective circuit operation for indoor P C board Protective circuit op...
Page 72: ...umeric characters are used for the check codes Fig 11 4 1 is 6 is 5 is A is C is B is D 1 If thelamps 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 isset to the service mode the indoor controller diagnosesthe operation condition and indicatesthe in formation of the self diagnosison the display of the remote controller...
Page 73: ...oom Operation Flashes when 1 Check the sensor TA and connection board temperature sensor is continues error is detected 2 In case of the sensor and its short Circuit or disconnection connection is normal check the P C board TC sensor The heat Operation Flashes when 1 Check the sensor TC and connection exchanger temperature continues error is detected 2 In case of the sensor and its sensor of the i...
Page 74: ...or unit open 4 The outdoor unit abnormal stop at circuit of signal some time Signal circuit of indoor If the other check codes are found P C board or outdoor concurrently check them together P C board is failure Check protector hardware such in some period as Hi Pressure switch Thermal Relay etc Check refrigerant amount or any possibility case which may caused high temperature or high pressure Che...
Page 75: ...hes after Even if trying to operate again all inverter P C board error error is detected operations stop replace inverter 4 times P C board All OFF Flashes after error is detected 4 times 1 Check sensors TE TS connection In case of sensors and it s connection is normal check the inverter P C board 2 Check 4way valve operation position In case TE TS detected temperature relationship are different f...
Page 76: ...comes 4 8 11 or 18 times record error to check code But after re starting operation if no error is detected and air conditioner can operate more than 6 minutes error count is cleared The others Return signal of the outdoor Indoor unit Flashes when including unit has been sent when operates error is detected compressor operation start But after continue Flashing stop that signal is stop some time O...
Page 77: ...etected 4 times 1 Check sensors TD 2 Check refrigerant amount 3 In case of P M V exists Check P M V by measure the resistance of the coil and confirm its operation sound of initial operation etc 4 Observe any possibility cause which may affect high temperature of compressor Compressor is high current All OFF Flashes after though operation Hz is error is detected decreased to minimum limit 8 times ...
Page 78: ...d Outdoor unit Instantaneous power failure Some protector hardware of the outdoor unit open circuit of signal Signal circuit of indoor P C board or outdoor P C board is failure in some period TE TC high tmperature TE for cooling operation TC for heating operation 11 times 4 8 or 11 times When first error is detected error is count as 1 time then once operation is stop and re started After re start...
Page 79: ...circuit Item by symptoms Operation Check Item Considerable principle cause Measures Remote controller is defective Refer to 5 Troubleshooting for remote controller Unit operates normally Replace main P C board Replace fan motor Is fuse F01 of indoor control board blown Microcomputer is defective NO NO NO NO NO YES YES YES YES YES YES Point remote to digital camera Can see infrared ray at sending L...
Page 80: ...Motor connection condition Is it possible to detect DC 15V between 4 and 3 of motor connector CN301 Is it possible to detect DC 15V between 4 and 3 of motor connector CN301 Does indoor fan operate Peplace main P C board YES YES YES YES YES YES NO NO NO NO NO NO Turn off power supply once and turn it on again Is it possible to detect DC 1V or more between 5 and 3 of motor connector CN301 Does fan m...
Page 81: ...evel to HIGH Is it possible to rotate cross flow fan by hand properly Fan motor operates normally Replace bearing of cross flow fan YES YES YES NO NO NO Does check cross flow fan bearing normal condition Replace indoor fan motor Peplace main P C board Does check display on remote show high Change the new PC board Does fan speed change Replace remote Replace motor NO NO NO YES YES YES A B FILE NO S...
Page 82: ...otor operate off A C by remote controller 3 Turn off breaker for a while then turn it ON 3 1 If fan motor not operate it means an unit in Auto restart operation see more detail in P 45 46 3 2 If Fan motor still operate follow the below NOTE Do not disconnect the connector while the fan motor is rotating Use a thin test rod 3 2 4 Check DC voltage with CN301 connector while the fan motor is rotating...
Page 83: ...temporary switch of the air conditioner main unit to TEST RUN or TEMPORARY AUTO Can any signal tone be heard in a transistor radio when transmitting within 5 cm distance from the radio P C board is failure Replace P C board Is operation possible when the transmitter is moved nearer to the infrared signal receiver of the air conditioner Battery life Replace the batteries Dose the transmission indic...
Page 84: ...on from indoor unit to outdoor unit is correctly performed based upon the follow ing diagram NOTE Measurement should be performed 2 minutes and 30 seconds after starting of the operation Be sure to prepare a diode for judgment Normal time Voltage swings between DC15 and 60V Inverter Assembly check 11 8 1 Abnormal time Voltage does not vary 2 Outdoor unit stops in a little while after operation sta...
Page 85: ...low Is connector of coil connected to inverter Is coil of the pulse motor valve P M V correctly set Check condensation at outlet of P M V If there is condensation at outlet 1 4 inch Ø6 35mm valve side the valve is clogged If there is no P M V Skip this step Are temp sensors of indoor outdoor units correctly set to the holder NOTE The temperature sensors include indoor heat exchanger sensor TC outd...
Page 86: ... Turn OFF power supply Check 25A fuse F01 failure Remove connector of compressor Replace control board Check terminal Voltage of electrolytic capacitor are in Voltage Rate Turn ON power Supply NO 10 x 1 414 Replace control board NO Cooling 17 C A Connect discharge resistance approx 100Ωı 40W or soldering iron plug between terminals of the electrolytic capacitor 760µF of C08 with printed CAUTION HI...
Page 87: ...ly Replace outdoor fan motor NO Replace compressor Replace control board Replace compressor YES Does compresser operate normally Remove connector CN31 of outdoor fan motor Check winding resistance by ohmmeter are correct Check rotor locking by rotate with hand Can it rotate Turn OFF power supply Check compressor winding resistance correct is in rate A NO NO YES NO FILE NO SVM 18047 87 ...
Page 88: ...l closed Does the indoor fan rotate Does the PURE indicator white go on Short Timer and then check Is DC12V applied between DC12V GND of CN1 of the high voltage generator Is DC12V applied between and of CN402 of the main P C board Micro switch is stuck Micro switch malfunction To item Power supply is not turned on Replace the main P C board Replace micro switch Are the electric dust collector Elec...
Page 89: ...en removing the front panel or the P C board be sure to shut off the power supply breaker 2 When removing the P C board hold the edge of the P C board and do not apply force to the parts 3 When connecting or disconnecting the connec tors on the P C board hold the whole housing Do not pull at the lead wire 11 9 2 How to shorten time for start the compressor 1 Turn on remote 2 Setting requirment ope...
Page 90: ... 50 60 70 80 90 20 10 0 0 10 20 30 40 50 Resistance value k Temperature C TD Discharge temp sensor TA Room temp sensor TC and TCJ Heat exchanger temp sensor TA TC TCJ TD 1 Sensor characteristic table GND 5V 12V 15V FILE NO SVM 18047 90 ...
Page 91: ...TA TC TCJ kΩ 10 C 20 C 25 C 30 C 40 C 20 7 12 6 10 0 7 9 4 5 5 4 3 2 1 White Yellow Yellow Yellow Yellow 5 4 3 2 1 Refer to 11 5 1 5 Measure the resistance value of each winding coil by using the tester Under normal temp 25 C Position 1 to 2 1 to 3 1 to 4 1 to 5 Resistance value 200 14Ω Refer to 11 5 1 3 and 4 2 3 Remote controller Louver motor MP24Z4N 4 Indoor fan motor sensor at 25 C FILE NO SVM...
Page 92: ...g equipment in an airtight room Carbon monoxide poisoning may result if the room is not properly ventilated 3 Do not bring welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such as inspecting the cir cuitry wear rubber gloves to avoid contact with the live parts Electr...
Page 93: ...emove the fixing screw at PANEL FR R 3pcs at PLATE DECO 3 pcs following picture then pull out PANEL FR R and PLATE DECO 4 Remove a fixing screw and Cover connector assembly then remove Power supply cord after already remove fixing screws 2pcs at cord clamp 5 Remove the fixing screw that secure the cover electric box then remove cover electric box toward right side 6 Remove the screws of Earth lead...
Page 94: ...move electronic parts How to assemble the electric parts box 1 Lock the top of electric box with hook of Frame up and secure it by fixing screw with Back body After that connect the connector of High voltage generator Fan motor and Louver motor 2 Insert TA TC TCJ sensor into holder sensor Fix the grounding lead with fixing screw No Part name Work procedure Remarks TCJ sensor TC sensor TA sensor 5 ...
Page 95: ...rame assembly 6 Remove a fixing screw of ground lead then remove Earth assembly How to assemble the Frame 1 Press the top of Frame with 5 hooks of Back body 2 Fix Frame by 5 fixing screws Horizontal louver 1 Remove shaft of the horizontal louver from the back body First remove the center shaft and then remove the other shafts No Part name Work procedure Remarks 2 Screws 5 hooks from rear Earth scr...
Page 96: ...r assembly 4 Remove cover of HV generator by unlock 4 claws 5 Remove the board of HV generetor Points to note during re installation Lay the wires straight such that they pass through the earth wire in a U shape Lay the wires such that the high voltage power supply line passes in a U shape No Part name Work procedure Remarks 7 5 Plasma ion 4 Claws U shape groove Ground lead 3 Screws FILE NO SVM 18...
Page 97: ...the right side of heat exchanger 4 Move unit from the wall by pushing at point as picture and lift up the unit 5 Rotate unit to back side then remove the Pipe holder from the main unit 6 Rotate the main unit then pull out the Heatexchanger from the Back body as picture No Part name Work procedure Remarks PUSH PUSH 8 1 6 Fixing screw Fixing screw FILE NO SVM 18047 97 ...
Page 98: ...band right 5 Pull the motor band right and the Fan Motor outward Point to note during re installation For the position of the fan motor please install such that the fan motor connector matches the position and enters the space of the ribs of the motor band right No Part name Work procedure Remarks 9 Set screw Screws Motor band right Motor connector 1 6 8 Fixing screw FILE NO SVM 18047 98 ...
Page 99: ...e Base bearing assembly from the main unit Caution at assembling If the bearing is out from the housing push it into the specified position and then incorperate it in the main body No Part name Work procedure Remarks 10 Bearing Bearing base Base bearing assembly 6 8 9 Fixing screw Fixing screw 1 FILE NO SVM 18047 99 ...
Page 100: ...so that flat area on shaft of the fan motor comes to the mounting hole of the set screw Perform positioning of the fan motor as follow When assembling the fan motor the fan motor must be installed in such a way that the fan motor leads will be taken out is positioned at the bottom front After assembling the two hooking claws of the motor band right into the main body position the fan motor insert ...
Page 101: ...504 250 43T08429 221 43T2D302 252 43082298 222 4302D021 254 43T44625 223 43039404 ASM PANEL R S ASM PANEL L S ASM PANEL AOLT ASM AINL S ASM BUSH BODY R ASM BUSH BODY L ASM BODY BUSH DN ASM FAN CF CE110 ASM BEAR MOLD BASE BEARING LOUVER HR FR LOUVER HR BK MOTOR LOUVER ASM SUB GEAR LV S ASM LOUVER VT ASM LOUVER VT ASM GEAR LV ASM ARM L BAND MOTOR ASM COV MOTOR 254 43T44626 PIPE SHIELD HOLDER PIPE AS...
Page 102: ...43T50355 407 43T60378 404 43T62340 408 43T60417 405 43T6V469 PC BOARD 10k PC BOARD 13k PC BOARD 16k TERMINAL TERMINAL 406 43T6W349 SENSOR HEAT EXCHANGER SENSOR HEAT EXCHANGER TEMPERATURE SENSOR CORD CLAMP PC BOARD ASSY WRS LED Description Description 406 43T6W350 406 43T6W351 406 FILE NO SVM 18047 102 ...
Page 103: ...144 9 MOO 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAMBOL BANGKADI AMPHUR MUANG PATHUMTHANI 12000 THAILAND ...
