Technibel Climatisation 387106966 Technical Data & Service Manual Download Page 8

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CAV364R5TA-

Controller PCB

Part No.
Controls

Fan & Fan Motor

Type
Q'ty ……. Dia. and lenght

Fan motor model…Q'ty
No. Of poles…rpm (230 V, High)
Running Amps

Power input

Coil resistance (Ambient temp. 20 °C )

Ω

BRN-WHT: 75,1

WHT-VLT: 6,7

VLT-ORG: 20,6
ORG-YEL: 27,4

WHT-PNK: 42,7

YEL-BLK: 58

Safety devices

Type
Operating temp. Open

°C

Run capacitor

µF

VAC

Panel

Model
Flap motor

rating
rpm
nominal output

coil resistance (25°C)

Ω

Dew proof heater

Electronic expansion valve

Coil
Coil resistance (20°C)

Ω

Valve body

Heat Exch. Coil

Coil
Rows
Fin pitch

face area

DATA SUBJECT TO CHANGE WITHOUT NOTICE

RED - GRY: 46

BLK - GRY: 46

HKV-30D27

15,62 ± 15%

240 V, 26W

EKV-MOZS742E0

ORG - GRY: 46

YEL - GRY: 46

M2LB24ZA12

240 VAC

2,5

ASG3648E

CR-X253GH

Centrifugal fan

Microprocessor

1…. Ø 443

SFG6X-81A6P…1

6 … 530

0,765

1,5

0,556

Aluminium plate fin / Copper tube

Internal thermal protector

130 ± 8
79 ± 15

440

Summary of Contents for 387106966

Page 1: ...ICAL DATA SERVICE MANUAL INDOOR UNIT CAV254R5TA CAV364R5TA CAV484R5TA SPLIT SYSTEM AIR CONDITIONER CAV484R5TA 0 8180 366 0 10 2004 Model No Product Code No CAV254R5TA 387106966 387106968 387106967 CAV364R5TA ...

Page 2: ...ow 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 When transporting Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminium...

Page 3: ...20 4 6 Discharge Temperature Control Cooling and Heating 21 4 7 Auto Mode for Automatic Heating Cooling Switching 21 4 8 Automatic Restart after Power Interruption 23 4 9 Electronic Expansion Control Valve 23 4 10 Dehumidifying Operation 23 4 11 Auto Flap Control Indoor Unit 4 Way Air Discharge 24 4 12 Electronic Expansion Valve 25 4 13 Voltage Detection Control 25 5 TROUBLESHOOTING 26 6 CHECKING ...

Page 4: ...ight mm Width mm Depth mm Package dimensions Unit Height mm Width mm Depth mm Volume m3 Ceiling panel Height mm Width mm Depth mm Volume m3 Weight include panel Net kg Shipping kg Ceiling panel Net kg Shipping kg DATA SUBJECT TO CHANGE WITHOUT NOTICE Microprocessor I C thermostat 3 and Auto Cooling Heating See catalogue with the requested matching 1140 1020 840 338 Auto Remote control Electronic e...

Page 5: ...m Package dimensions Unit Height mm Width mm Depth mm Volume m3 Ceiling panel Height mm Width mm Depth mm Volume m3 Weight include panel Net kg Shipping kg Ceiling panel Net kg Shipping kg DATA SUBJECT TO CHANGE WITHOUT NOTICE ON OFF 72 hours ON OFF 24 hours Program 3 and Auto See catalogue with the requested matching Microprocessor I C thermostat 1920 1680 1320 Wired K70D026ZAA Wireless K70D027ZA...

Page 6: ...m Package dimensions Unit Height mm Width mm Depth mm Volume m3 Ceiling panel Height mm Width mm Depth mm Volume m3 Weight include panel Net kg Shipping kg Ceiling panel Net kg Shipping kg DATA SUBJECT TO CHANGE WITHOUT NOTICE 10 0 131 27 32 840 0 35 Washable easy acces long life 2500 hr 8 110 1250 965 19 05 3 4 350 1170 Auto Remote control 42 39 35 Flare type 9 52 3 8 R407C Electronic expansion v...

Page 7: ... Run capacitor µF VAC Panel Model Flap motor rating rpm nominal output W coil resistance 25 C kΩ Dew proof heater Electronic expansion valve Coil Coil resistance 20 C Ω Valve body Heat Exch Coil Coil Rows Fin pitch mm face area m2 DATA SUBJECT TO CHANGE WITHOUT NOTICE IKV 24D18 240 V 26W DKV MOZS726E0 ORG GRY 46 YEL GRY 46 2 5 3 15 62 15 RED GRY 46 BLK GRY 46 0 611 31 4 4 5 Internal thermal protec...

Page 8: ... VAC Panel Model Flap motor rating rpm nominal output W coil resistance 25 C kΩ Dew proof heater Electronic expansion valve Coil Coil resistance 20 C Ω Valve body Heat Exch Coil Coil Rows Fin pitch mm face area m2 DATA SUBJECT TO CHANGE WITHOUT NOTICE 3 RED GRY 46 BLK GRY 46 HKV 30D27 15 62 15 240 V 26W EKV MOZS742E0 ORG GRY 46 YEL GRY 46 M2LB24ZA12 240 VAC 2 5 ASG3648E CR X253GH Centrifugal fan M...

Page 9: ...VAC Panel Model Flap motor rating rpm nominal output W coil resistance 25 C kΩ Dew proof heater Electronic expansion valve Coil Coil resistance 20 C Ω Valve body Heat Exch Coil Coil Rows Fin pitch mm face area m2 DATA SUBJECT TO CHANGE WITHOUT NOTICE RED GRY 46 BLK GRY 46 HKV 30D27 240 V 26W EKV MOZS742E0 ORG GRY 46 YEL GRY 46 240 VAC 2 5 3 15 62 15 ASG3648E M2LB24ZA12 Microprocessor CR X253GH 0 8...

Page 10: ...fety float switch Model Contact rating DC 12V 25W 500 mm 400 cc min FS 0218 102 CAV254R5 FS 0218 103 CAV364 484R5 WP20SL 21 230V 12W ATR II215TA VAC 230V 50Hz 10 2V 1 4A 7 VA 55 C 1 5 5 PBC 41E S14 PB3M 41E S4 PBC 41E S42 2 WHT WHT 84 BRN BRN 0 7 145 C 45 C 2 6 5 RED RED 2 7 10 C 23 7 5 5 C 18 8 5 0 C 15 0 5 5 C 12 1 5 10 C 9 7 5 20 C 6 5 5 30 C 4 4 5 40 C 3 1 5 0 C 16 5 5 5 C 12 8 5 KTEC 35 S6 45...

Page 11: ...7 3 4 566 Suspention bolt pitch 820 Ceiling opening 820 Ceiling opening 377 Panel center 757 Suspention bolt pitch 368 25 9 X Air intake grille Air outlet Refrigerant liquid line D 9 52 In case of 25 type use the tube connector Refrigerant gas line D 12 7 9 12 type Drain connection Power supply entry For discharge duct For fresh air intake Suspension bolt mounting 9 11 ...

Page 12: ...5 9 8 8 3 2 2 1 4 X X view 124 124 124 338 30 48 124 1066 12 100 12 12 12 244 249 776 180 5 7 6 244 182 157 59 291 292 339 232 790 1150 860 500 Air intake grille Air outlet Refrigerant liquid line D 9 52 Refrigerant gas line D 19 05 Drain connection Power supply entry For discharge duct For fresh air intake Suspension bolt mounting 9 12 ...

Page 13: ... U2 R1 R2 R3 GRN YEL GRN YEL BLU BLU ORG RED YEL BLK GRY BRN ORG PNK GRY ORG YEL BLK BRN BLK BLU BRN PNK BRN RED RED RED RED YEL ORG VLT WHT GRY GRY ORG PNK BRN BLK YEL WHT BLK BRN GRY PNK WHT WHT WHT GRY GRY WHT BLK BLU VLT YEL FMI PNK BRN LM MOV Coil E1 RED Room Temp YEL Controller T6 WHT DP BLU E R RN1 N BLK R VCC WHT RN2 WHT N R RN3 WHT NH L LL FM WHT HH DPH BLU LM GRN LS WHT T20 GRY 3 1 FS RE...

Page 14: ... GRN YEL GRN YEL BLU BLU ORG RED YEL BLK GRY BRN ORG PNK GRY ORG YEL BLK BRN BLK BLU BRN PNK BRN RED RED RED RED YEL ORG VLT WHT GRY GRY ORG PNK BRN BLK YEL WHT BLK BRN GRY PNK WHT WHT WHT GRY GRY WHT BLK BLU VLT YEL FMI PNK BRN LM MOV Coil E1 RED Room Temp YEL Controller T6 WHT DP BLU E R RN1 N BLK R VCC WHT RN2 WHT N R RN3 WHT NH L LL FM WHT HH DPH BLU LM GRN LS WHT T20 GRY 3 1 FS RED SG1 SG2 OC...

Page 15: ... 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 HEATER BODY SENSOR 1573_X_S THERMO OFF Chart Summary and Explanations Once the compressor Starts it keeps running for 5 minutes Once the compressor stops it will not start running again for 3 minutes If ...

Page 16: ... 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 controller BODY SENSOR OFF OFF SET SPEED SET SPEED 3 SECONDS ON OFF ON MORE THAN 3 MINUTES OFF ON OFF ON OFF ON OFF OFF ON 3 MINUTES MORE THAN 5 MINUTES 5 MINUTES THERMO ON THERMO ON THERMO ON THERMO...

Page 17: ...en 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 coil temperatureE2rises The indoor unit s coil temperature is taken from sensor E2 located in the middle of the indoor heat exchange coil The dotted line shows that the indoor fan motor is OFF When th...

Page 18: ...unit 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 SPEED L H MM H 0433_M_S ROOM TEMP deg SET TEMP 3 2 1 H M High Middle L LL Low Very low INDOOR FAN SPEED H L M M H 0434_M_S ROOM TEMP deg SET TEMP 2 4 H M High Middle L LL Low Very low 18 ...

Page 19: ...door 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 compressor The compressor does not start again until the temperature rises above 1 C The compressor stops for 3 minutes minimum Note When low fan speed is selected and the air conditioner is in cooling oper...

Page 20: ...til 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 E2 64 61 60 59 55 53 OUTDOOR FM START UP COMPENSATION OFF OPEN H or M H L 1565_M_S FUZZY CONTROL FUZZY CONTROL OVERLOAD PROTECTION OVERLOAD PROTECTION OPEN H or M 20 ...

Page 21: ...on 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 mode is selected the microprocessor calculates the difference between the set temperature and the room temperature and automatically switches to the COOLING or HEATING mode to maintain the desired tempe...

Page 22: ...ollows 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 the room temperature 20 C set by the remote controller the operation C 18 1 0 thereafter the operation changes to heating again COOLING SELECTION TEMP 2 5 deg SHIFT SET TEMP 2 deg REMOTE CONTROLLED SE...

Page 23: ... 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 indoor fan at a low speed to dehumidify without greatly lowering room temperature In this mode the microprocessor automatically controls the ON OFF operation between 2 deg and 2 deg of the set temperatu...

Page 24: ...position if a search action for sensing flap position is not succeeded in one minute only the swing is operated Operation mode Cooling dehumidifying Fan Heating Standby for heating Automatic setting Flap position F1 F2 F3 Swing F1 F2 F3 F4 F5 Swing F1 F2 F3 F4 F5 Swing Optional setting F2 F2 F4 1328_M_I F1 F5 60 Heating F1 F5 Cooling F1 F3 F2 F3 F4 The indoor fan speed is automatically set toL and...

Page 25: ... 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 gas temp and the target discharge gas temperature calculated from the outdoor unit coil temperature and the change thereof the electronic refrigerant valve is controlled so that the unit can perform ...

Page 26: ...safety 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 manual and your knowledge of air conditioning find the solution 1 1 Check before and after Troubleshooting GRV250R5 Many problems may happen because of wiring or power supply problems so you should ch...

Page 27: ... 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 being supplied WARNING If the following troubleshooting must be done with power being supplied be careful not to touch any uninsulated live part that can cause ELECTRIC SHOCK 4 Check the lead wires an...

Page 28: ...ng 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 Refrigerant flow failure Electronic refrigerant control valve is defective Service valves are not fully open Replace the compressor Compressor is defective Open the valves fully Air filter is clogged ...

Page 29: ...essor 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 tubes between indoor and outdoor units are not insulated Insulate wide and narrow tubes separately Replace the valve 4 way valve is defective Replace the valve Cold air is discharged Ò STANDBY Ó is displ...

Page 30: ...main 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 communications signal Confirmation error of unit numbers included Error transmitting of serial communications signal No of judged indoor units or total capacity of indoor units is small No of judged indoor...

Page 31: ...l 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 is overloaded PC compressor motor is locked Compressor current detection circuit is defective Low pressure protector is activated Low pressure switch or low pressure prevention Standard comp contacto...

Page 32: ...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 H04 H05 E15 E16 Flash at the same time ÒSETTINGÓ flashes Flash alternately 0654_C_I LED 1 LED 2 Normal Outdoor unit address is duplicated detecting refrigerant shortage FMo CM thermal protection is i...

Page 33: ...r 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 the connections for the 4P connector for the indoor unitÕs PCB power trans former good Miswiring of power supply wires and indoor outdoor control lines Correct the connections Replace the indoor unit power transf...

Page 34: ... 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 controller No Yes Yes Is the indoor forced OPR pin shorted Replace the indoor OK No NG Yes 0334_M_I START Repair the wiring Replace the remote controller Is the No 1 line wire red for the remote contr...

Page 35: ...ns 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 PCB Replace the indoor unit PCB Indoor outdoor unit control lines are cut off Correct the wiring Cut the breaker and remove the indoor outdoor unit control lines connected to U1 and U2 of the indoor un...

Page 36: ...ote 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 defect between an indoor and outdoor unitÕs control line NO Yes 1904_M_I START Influenced by external noise Correct the setting Is the setting for the non volatile memory IC on the indoor unit PCB inapp...

Page 37: ...or 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 49FI off Replace the indoor fan Replace the indoor unit PCB 37 ...

Page 38: ...he 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 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 Y...

Page 39: ...mpressor 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 pressure switch defect Repair the wiring High pressure switch activation refrigerant Refrigerant 39 ...

Page 40: ...tart 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 the 3P connector No Yes Replace the fuse Is the fuse F1 F2 on the indoor unit PCB blown No No No Yes Yes Yes 0646_M_S Start Repair the wiring Check the contact Perform the same as CHECK E04 40 ...

Page 41: ...isplays 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 to panel connected firmly with 15P plug 41 ...

Page 42: ...6_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 detection L3 phase wire disconnected Comp motor magnetic contactor defect Outdoor unit PCB defect CHECK H03 display Compressor current detection circuit defect Normal No Failure in the electronic control val...

Page 43: ...ce 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 15P plug No Yes Replace P C B Ass y in the indoor unit Yes No Replace the motor Connect firmly Check the louver motor resistance Is auto louver motor normal 0651_M_S IS 15P CONNECTOR SOCKET RED attache...

Page 44: ...r 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 resistance of fan motor winding NG Replace the fan motor Replace the relays Replace the capacitor Replace P C B Ass y in the outdoor unit Are auxiliary relays 1Y 2Y normal 0462_M_I 44 ...

Page 45: ...Change 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 the remote controller s P C B Ass y as follows The followings are the correct switch settings for ordinary use of the unit Only change the settings temporarily for making service checks When you fin...

Page 46: ... 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 controller s display e During the test run the air conditioner runs continuously and the thermostat does not control the system f After the test run be sure to press the TEST CHK button once again to...

Page 47: ...mote 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 display Following example shows the UNIT No Indoor unit address is fixed at 01 01 In case of group control select the UNIT NO Indoor unit address which you want to check with UNIT button Each time you...

Page 48: ...play 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 max 4 most recent alarm messages so you can see problems the unit has had if any Knowing what has already occurred and been fixed helps you to know what to check at present This function is usable even...

Page 49: ...occurrence 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 then the first message will be shown again SER VICE R C No CHECK CODE No No UNIT No 1 1 Alarm message Refrigerant Circuit No Present Past Present Past MODE SER VICE R C No CHECK SER VICE R C No CHEC...

Page 50: ...ller 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 in the remote controller See section A for exact location b The appearance of the display will tell you whether or not the remote controller is working correctly or not Normal condition All displays...

Page 51: ...he 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 will be displayed Check and remove the cause If you want to stop the operation press the CL button then the unit stands in waiting mode Press the SET button again f If the automatic address operatio...

Page 52: ...want 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 Indoor No 2 is the smallest indoor No of the R C No 3 d Select the indoor No which you want to change with UNIT button Once in this mode the fan motor of selected indoor unit will turn on and let you co...

Page 53: ...o 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 CL MODE UNIT FLAP AIR FLOW R C No 0364_M_I Ex UNIT No 3 6 currently registered indoor unit address Required new indoor No 8 SET DATA 53 ...

Page 54: ...ton 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 select the indoor unit address UNIT No with UNIT button c Select the CODE No 06 with SET TEMP button d Choose the shift temp with button EX UNIT No 1 6 CODE No 06 Shift temp 5 deg e Press the SET but...

Page 55: ...emporarily 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 VI 2 b Press the TEST CHK SET and CL buttons at the same time for more than 4 seconds c Set the CODE No 12 to set the No of R C with the SET TEMP button SET CL MODE UNIT FLAP AIR FLOW R C No 0367_M_I...

Page 56: ...No 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 be set 2 4 h Press the SET button UNIT No CODE No 13 and SET DATA 0004 change from flashing to ON state SET CL MODE UNIT FLAP AIR FLOW R C No 0369_M_I SET CL MODE UNIT FLAP AIR FLOW 0370_M_I 56 ...

Page 57: ...that 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 OFF button o Finally remove the short circuit of DISP PIN And in case of group control be sure to restore the branch wiring to its original wiring In case of remote controller less system remove the...

Page 58: ...ed 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 0 to 1 with button EX UNIT No 1 6 CODE No 02 T type 150 hr 75 hr e Press the SET button CODE No 06 SET DATA and change from flashing to ON state f If you made a mistake press the CL button g Finally ...

Page 59: ...insulation 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 Measurement of Insulation Resistance for Electrical Parts Disconnect the lead wires of the desired electric part from terminal plate capacitor etc Similary disconnect the connector Then measure the ins...

Page 60: ...d 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 good if the pointer bounces to a great extent and then gradually returns to its original position The range of deflection and deflection time differ according to the capacity of the capacitor Fuse PCB ...

Page 61: ...heat 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 15 20 0 5 10 15 20 25 30 35 40 Temperature C Resistance k 0375_M_I 80 90 100 110 120 130 1 2 3 4 5 6 7 Temperature C Resistance k 0376_M_I 61 ...

Page 62: ...CN71 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 CN42 BLU For wireless remote controller CN43 BLU HU BLK CN36 T18 RED CN72 CN10 YEL CN7 CN34 CN35 GRN PNL CN41 BLU Wired remote controller CN9 RED FS CN8 WHT LS CN73 BLK RN1 F3 Fuse 125V 0 5A F1 Fuse 25...

Page 63: ...R C S Bourg en Bresse B 759 200 728 R D 28 Reyrieux BP 131 01601 Trévoux CEDEX France Tél 04 74 00 92 92 Fax 04 74 00 42 00 ...

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