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10) Symptom:

LCD on the remote controller displays “CHECK P02”. (Compressor / outdoor fan
protection thermostat operation warning / power supply voltage abnormality)

Yes

0342_M_I

TART

Is the outdoor fan wire winding

protection thermostat (49FO) off?

Replace the outdoor fan.

Replace the outdoor unit PCB.

Correct the connection

Yes

Replace the outdoor unit PCB.

Is there 220-240 V AC between

CN19-9 and CN19-1 on the

outdoor unit PCB?

Yes

Replace the outdoor unit PCB.

Is the high voltage switch

(63 PH) off?

Yes

Replace the fuse.

Is the fuse on the outdoor unit

PCB blown (F1 and F2)?

¥ No refrigerant

¥ High load

¥ 4-way valve defect

¥ Clogged refrigerant circuit

¥ Electronic refrigerant control valve

defect (indoor unit)

Yes

Check the power breaker etc.

and repair.

Is the power supply to the outdoor

unit normal?

(Voltage / defective phase?)

Содержание 387106963

Страница 1: ...SERVICE MANUAL INDOOR UNIT DSAVM93R5TAA DSAVM123R5TAA DSAVM183R5TAA SPLIT SYSTEM AIR CONDITIONER DSAVM183R5TAA 0 8180 373 0 07 2004 Model No Product Code No DSAVM93R5TAA 387106963 387106965 387106964...

Страница 2: ...w wiring to touch the refrigerant tubing compressor or any moving parts of the fan Do not use multi core cable when wiring the power supply and control lines Use separate cables for each type of line...

Страница 3: ...rge Temperature Control Cooling and Heating 20 4 7 Auto Mode for Automatic Heating Cooling Switching 20 4 8 Automatic Restart after Power Interruption 22 4 9 Electronic Expansion Control Valve 22 4 10...

Страница 4: ...frigerant Refrigerant control Dimensions Weight Dimensions Height mm Width mm Depth mm Package dimensions Height mm Width mm Depth mm Volume m3 Weight Net kg Shipping kg DATA SUBJECT TO CHANGE WITHOUT...

Страница 5: ...t control Dimensions Weight Dimensions Height mm Width mm Depth mm Package dimensions Height mm Width mm Depth mm Volume m3 Weight Net kg Shipping kg DATA SUBJECT TO CHANGE WITHOUT NOTICE Power noise...

Страница 6: ...control Dimensions Weight Dimensions Height mm Width mm Depth mm Package dimensions Height mm Width mm Depth mm Volume m3 Weight Net kg Shipping kg DATA SUBJECT TO CHANGE WITHOUT NOTICE Power noise l...

Страница 7: ...RED YEL 101 Safety devices Type Operating temp Open C Run capacitor F VAC Electronic expansion valve Coil Coil resistance 20 C Valve body Heat Exch Coil Coil Rows Fin pitch mm face area m2 DATA SUBJEC...

Страница 8: ...y devices Type Operating temp Open C Run capacitor F VAC Electronic expansion valve Coil Coil resistance 20 C Valve body Heat Exch Coil Coil Rows Fin pitch mm face area m2 DATA SUBJECT TO CHANGE WITHO...

Страница 9: ...ty devices Type Operating temp Open C Run capacitor F VAC Electronic expansion valve Coil Coil resistance 20 C Valve body Heat Exch Coil Coil Rows Fin pitch mm face area m2 DATA SUBJECT TO CHANGE WITH...

Страница 10: ...nput Flow rate Safety float switch Model Contact rating 45 C 2 2 5 50 C 1 8 5 10 C 10 0 5 20 C 6 3 5 30 C 4 0 5 40 C 2 7 5 40 C 3 1 5 0 C 16 5 5 5 C 12 8 5 KTEC 35 S6 5 C 12 1 5 10 C 9 7 5 20 C 6 5 5...

Страница 11: ...2 DIMENSIONAL DATA DSAVM93R5TAA DSAVM123R5TAA Units mm 11...

Страница 12: ...DSAVM183R5TAA Units mm 12...

Страница 13: ...3 ELECTRICAL DATA 3 1 Electric Wiring Diagram 3 87E 08 3 87E 08 3 87E 08 13...

Страница 14: ...L INDOOR F AN OFF OFF OFF OFF 1 1 Refer to 2 4 Outdoor Fan Speed Control MORE THAN 3 MINUTES MORE THAN 5 MINUTES ON ON ON ON ON ON SET SPEED OFF OFF OFF OFF ON ON ON ON ON ON DRAIN PUMP DEW PROOF HEAT...

Страница 15: ...body sensor Fig 2 THERMO ON THERMO ON 1 C OFF OFF 2 1 Refer to 2 4 Outdoor Fan Speed Control OFF SET SPEED ON ON ON ON REVERSING CYCLE ON TEMP OPERATION REMOTE CONTROL SENSOR Only for wireless remote...

Страница 16: ...n a maximum of 6 minutes has past The indoor fan motor operates in L instead of LL for 3 seconds as it starts to give the fan an initial boost Chart Summary and Explanations the set fan speed as the c...

Страница 17: ...nit fan speed will be automatically adjusted to the room temperature as the two charts shown below Chart Explanations and notes B Heating Fig 5 Chart Explanations and notes Fig 4 A Cooling INDOOR FAN...

Страница 18: ...oor unit coil to prevent freezing If the refrigerant control is not effective and the temperature continues to drop and stays below 0 C for 2 minutes continuously the control circuit stops the compres...

Страница 19: ...il E2 falls below 59 C Sensor E2 When sensor E2 rises above 62 C the control circuit stops the outdoor fan motor till the temp drops to 55 C Fig 10 C ELECTRONIC EXPANSION VALVE INDOOR UNIT COIL TEMP E...

Страница 20: ...n shuts down and alarm P3 appears on the remote controller The outdoor fan speed is controlled on discharge temp at heating mode 4 7 Auto Mode for Automatic Heating Cooling Switching When the AUTO mod...

Страница 21: ...llows Heating to Cooling Room temp Shifted temp 0 5 deg Cooling to Heating Room temp Shifted temp 1 0deg For example if the room temperature rises above 22 5 C 22 0 5 during the cooling operation at t...

Страница 22: ...the right amount of refrigerant through the Electronic Expansion Valve 4 10 Dehumidifying Operation Dehumidifying operation uses the cooling cycle to remove moisture from the air but by running an ind...

Страница 23: ...osition if a search action for sensing flap position is not succeeded in one minute only the swing is operated Standby for heating Automatic setting Flap position F1 F2 F3 Swing F1 F2 F3 F4 F5 Swing F...

Страница 24: ...control optimal refrigerant flow rate control By outputting the fuzzy estimation result corresponding to the fuzzy input variables the indoor unit coil temp the deviation between the actual discharge...

Страница 25: ...afety device has shut the unit down any alpha numeric codes appears on the display to guide you to the problem By understanding the code you can often go right to the problem area and then with this m...

Страница 26: ...connected between the indoor unit and outdoor unit Power Supply 50 Hz 3 phase 380 400 415 V 3 Check power supply Check that voltage is within the specified range 10 of the rating Check that power is b...

Страница 27: ...g Is setting temp suitable Change the setting temp Is cooling load too heavy Review cooling load estimate 4 way valve is defective Replace the 4 way valve Refrigerant shortage Charge refrigerant gas R...

Страница 28: ...ressor Compressor is defective Open the valves fully Air filter is clogged Clean the filter Not enough air circulation Is fan speed set to LOW Set the fan speed to either MEDIUM or HIGH Refrigerant tu...

Страница 29: ...ain indoor unit address setting is duplicated judged by outdoor unit Error receiving of serial communications signal Error transmitting of serial communications signal Error receiving of serial commun...

Страница 30: ...liquid temp C1 TH0E cannot be detected Outdoor coil gas temp C2 TH0C cannot be detected Operation lamp Timer lamp Heat stand by lamp Protective device for compressor is activated PC compressor motor...

Страница 31: ...he air conditioner immediately to avoid the compressor damage Fig 24 LED 2 on P C board Remote controller LED 1 on P C board Possible cause of trouble No message No message P02 P04 P05 F04 F09 H01 H02...

Страница 32: ...troller Repair the remote controller wiring Check and repair the power breaker etc Is the 220 240 V AC circuit shorted Replace or repair Is the primary side of the indoor power transformer shorted Are...

Страница 33: ...itself with self diagnostic functions Replace the remote controller Correct the wiring Correct the setting Open the forced OPR pin Is there an open or a contact defect in the No 1 line of the remote c...

Страница 34: ...s on the outdoor unit PCB Is the contact good at the 2P connector for indoor serial communications on the outdoor unit PCB Correct the connections No Correct the connections Replace the indoor unit PC...

Страница 35: ...te controller is displaying CHECK E09 Duplicate setting of RCU address switch of remote controllers NO Yes 1903_M_I START Correct wiring Influenced by external noise Is there a cut line or contact def...

Страница 36: ...r fan protection thermostat operation warning NO No No Yes Yes Yes 0340_M_I START Is there 220 240 V AC between S4 and T20 3 on the indoor unit PCB Is the indoor fan wire winding protection thermostat...

Страница 37: ...e connection Yes No No No Replace the outdoor unit PCB Is there 220 240 V AC between CN19 9 and CN19 1 on the outdoor unit PCB Yes Replace the outdoor unit PCB Is the high voltage switch 63 PH off Yes...

Страница 38: ...pressor 12 Symptom LCD on the remote controller displays CHECK P04 High pressure switch activation warning 0343_M_I Start No Yes No Yes 0344_M_I Start Are there connection defects in the wiring High p...

Страница 39: ...art Check the power breaker etc and repair No problem Correct the connection Replace the outdoor PCB Is the power supply to the outdoor unit normal Voltage defective phase Is there a contact defect in...

Страница 40: ...splays CHECK E16 16 Check P9 is displayed on the remote control unit NO No No Yes Yes 0647_M_S START Repair the wiring YES Yes 0649_M_S START Connect firmly Is 15P connector socket RED being attached...

Страница 41: ..._M_I CHECK H02 DISPLAY Compressor lock detection Insufficient voltage Comp motor magnetic contactor defect Refrigerant over charged Start Compressor lock CHECK H01 display Compressor overload detectio...

Страница 42: ...e of fan motor winding Replace the fan motor Replace the capacitor Replace the P C B Ass y in the indoor unit No Yes Out 0650_M_S Is 15P connector socket RED attached to panel connected firmly with 15...

Страница 43: ...Check resistance of compressor motor winding Replace the compressor NG 0461_M_I No Yes No Yes Is fan motor capacitor normal No Is there voltage output of P C B Ass y for fan motor Yes Check resistanc...

Страница 44: ...hange the shift temperature in heating mode I Set the indoor unit address J Change the period of the filter timer A Set service check switches The service check switch RCU CK is located on the back of...

Страница 45: ...on the remote controller b Press the ON OFF operation button to start the test run c Press the MODE button to select either COOLING or HEATING mode d When the test run starts TEST shows on the remote...

Страница 46: ...ote controller press both TEST CHK and CL buttons at the same time for more than 4 seconds b The UNIT No the address and temperature of the sensors instead of its usual information will flash on the d...

Страница 47: ...lay to previous mode To reset the display press TEST CHK button then the remote controller will return to previous mode D Find out about past service problems The remote controller can memorize the ma...

Страница 48: ...ccurrence from oldest to most recent P01 P02 P04 and most recently E01 then the display will be shown as below when you press button four times The 5th time you press button you can repeat the display...

Страница 49: ...ler has a self diagnostic function to check if it works properly Use this procedure to find out if the remote controller itself is in trouble a Turn ON the RCU CK switch on the back of the P C B Ass y...

Страница 50: ...e auto address operation with UNIT button d Press the SET button The auto address operation will start CODE No changes from flashing to ON state e If an error occurs during operation the alarm message...

Страница 51: ...ant to change with the UNIT up or FLAP down buttons c Press the SET button to confirm the R C No The smallest registered indoor No and the selected R C No will be displayed Ex R C No 3 is selected Ind...

Страница 52: ...ON state g If you made a mistake press the CL button h Finally press the TEST CHK button i If you want to change the indoor unit address of the other R C No follow the step a to h in the same way SET...

Страница 53: ...on for more than 4 seconds b In case of group control if you want to change all units in group control collectively proceed next step remaining ALL displayed If you want to change a unit individually...

Страница 54: ...mporarily 2 In case of remote controllerless system remote controller should be connected with the indoor unit temporarily a Short the two terminals of DISP PIN on indoor unit PCB DISP PIN Refer to P...

Страница 55: ...o 13 to set the indoor unit No with the SET TEMP button g Set the indoor unit No which you want to set with the button Ex Indoor unit No 4 will be set In this example indoor unit address UNIT No will...

Страница 56: ...hat setting returns to the initial state m Press the TEST CHK button to finish this mode The display is disappeared n Confirm the indoor unit address UNIT No with the UNIT button after pressing the ON...

Страница 57: ...d next step remaining ALL displayed If you want to change a unit individually select the indoor unit address UNIT No with UNIT button c Select the CODE No 02 with SET TEMP button d Change the No from...

Страница 58: ...sulation resistance tester and measure the resistance by placing a probe on each terminal screw on the terminal plate fig 2 Note that the ground line terminal should be skipped for the check 6 1 4 Mea...

Страница 59: ...then place a probe on the capacitor terminals as shown in fig 7 Observe the deflection of the pointer setting the resistance measuring range of the multimeter to the maximum value The capacitor is go...

Страница 60: ...eat exch coil sensor TH6 C1 TH7 C2 3 Compressor discharge gas temp sensor TH8 PTC 51H PBC 41E PB3M 41E Resistance k 10 15 20 25 30 35 40 10 9 8 7 6 5 4 3 2 1 Temperature C 0374_M_I 20 15 10 5 0 5 10 1...

Страница 61: ...N71 YEL T10 External input and output terminal CN34 GRN DISCHARGE CN83 WHT FMI CN79 RED HU1 CN85 BLU DPH CN76 BLK OP1 CN78 BLU DP CN84 WHT RN3 CN81 GRY T20 CN80 RED 26H D80 RED Power lamp CR X253GH CN...

Страница 62: ...R D 28 Reyrieux BP 131 01601 Tr voux CEDEX France T l 04 74 00 92 92 Fax 04 74 00 42 00 R C S Bourg en Bresse B 759 200 728...

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