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Vivax ACP-09CH25AELI Service Manual Download Page 48

 

 

47 

9. Troubleshooting 

9.1 Indoor Unit Error Display 

Display 

LED STATUS 

E0 

Indoor EEPROM parameter error 

E1 

Indoor / outdoor units communication protection 

E2 

Zero-crossing signal error(except MS9A-24HRDN1-QRC4W,

 

MS9A-24HRDN1-QRC8W) 

E3 

Indoor fan speed has been out of control 

E4 

Indoor room temperature sensor open circuit or short circuit 

E5 

Evaporator coil temperature sensor open circuit or short circuit 

EC 

Refrigerant leakage detection 

F1 

Outdoor ambient temperature sensor open circuit or short circuit 

F2 

Condenser coil temperature sensor open circuit or short circuit 

F3 

Compressor discharge temperature sensor open circuit or short circuit   

F4 

Outdoor EEPROM parameter error 

F5 

Outdoor fan speed has been out of control 

P0 

IPM  malfunction or IGBT over-strong current protection 

P1 

Over voltage or too low voltage protection 

P2 

High temperature protection of compressor top diagnosis and 

solution(Only for MS9A-24HRDN1-QRC8W) 

P4 

Inverter compressor drive error 

Note: E4 & P3:    Reserved function.  

 

Summary of Contents for ACP-09CH25AELI

Page 1: ...ACP 09CH25AELI ACP 12CH35AELI ACP 18CH50AELI ACP 22CH65AELI Service manual ENG RoHS ...

Page 2: ......

Page 3: ... 3 Pipe length and the elevation 17 6 4 Installation for the first time 18 6 5 Adding the refrigerant after running the system for many years 21 6 6 Re installation while the indoor unit need to be repaired 22 6 7 Re installation while the outdoor unit need to be repaired 24 7 Operation Characteristics 27 8 Electronic function 28 8 1 Abbreviation 28 8 2 Display function 28 8 3 Main Protection 29 8...

Page 4: ...emble or repair the product there is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire of electric shock Always install a dedicated circuit and breaker Improper wiring or installation may cause fore or electric shock Use the correctly rated breaker of fuse There is risk of f...

Page 5: ...ly plug during operation There is risk of fire or electric shock Do not touch operation the product with wet hands Do not place a heater or other appliance near the power cable There is risk of fire and electric shock Do not allow water to run into electrical parts It may cause fire failure of the product or electric shock Do not store or use flammable gas or combustible near the product There is ...

Page 6: ...wer supply plug or turn off the breaker There is risk of product damage or failure or unintended operation Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injury and product damage CAUTION Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product Install the drain ho...

Page 7: ...oor units Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage Do not insert hands or other objects through air inlet or outlet while the product is operated Do not drink the water drained from the product Use a firm stool or ladder when cleaning or ma...

Page 8: ...lter O Bio Filter O Golden Fin O killer of formaldehyde Compressor Crankcase Heater O Self Clean O Follow me O 8 degree heating O Heat compensation O Self diag function Hydrophilic aluminum fin Anti rust cabinet Valve protection cover PTC Heating Belt O 1W standby O optional function ACP 09CH25AELI ACP 12CH35AELI ACP 18CH50AELI ACP 22CH65AELI 12k 18k 22k ...

Page 9: ...8 3 Dimension 3 1 Indoor Unit L R H Model W D H 710 190 250 790 198 265 920 223 292 998 240 322 ACP 09CH25AELI ACP 12CH35AELI ACP 18CH50AELI ACP 22CH65AELI ...

Page 10: ... mm H mm Dimension of installation hole mm 111 5 100 45 Φ65 151 100 45 118 5 100 45 Model R mm L mm H mm Dimension of installation hole mm 186 5 150 45 Φ65 ACP 09CH25AELI ACP 12CH35AELI ACP 22CH65AELI ACP 18CH50AELI ...

Page 11: ...More than 70cm More than 30cm More than 60cm Service space Fence or obstacles Model W D H W1 A B 780 250 540 843 549 276 780 250 540 843 549 276 760 285 590 823 530 290 845 320 700 908 560 335 ACP 09CH25AELI ACP 12CH35AELI ACP 18CH50AELI ACP 22CH65AELI ...

Page 12: ...m INDOOR OUTDOOR LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE CHECK VALVE Heating Model only CAPILIARY TUBE REVERSING VALVE Heating Model only COOLING HEATING ACCUMULATOR ...

Page 13: ...12 5 Wiring Diagram 5 1 Indoor Unit ACP 09CH25AELI ACP 12CH35AELI ACP 18CH50AELI ...

Page 14: ...13 ACP 22CH65AELI ...

Page 15: ...14 5 2 Outdoor Unit ACP 09CH25AELI ACP 12CH35AELI ACP 18CH50AELI ...

Page 16: ...15 ACP 22CH65AELI ...

Page 17: ...19 3 4 6500 663kgf cm 6700 683kgf cm 6 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross sectional area mm 3 and 6 0 75 6 and 10 1 10 and 16 1 5 16 and 25 2 5 The cable size and the current of the fuse or switch are determined by the maximum current indicated on the nameplate which located o...

Page 18: ...igerant g m Gas Liquid 3 8 Ф9 52 1 4 Ф6 35 5 8 20 20 5 8 20 20 1 2 Ф12 7 1 4 Ф6 35 5 10 25 20 5 8 Ф15 9 3 8 Ф9 52 5 10 25 40 Caution The capacity test is based on the standard length and the maximum permissive length is based on the system reliability The oil trap should be installed per 5 7 meters ACP 09CH25AELI ACP 12CH35AELI ACP 18CH50AELI ACP 22CH65AELI ...

Page 19: ...ft brush to check for leakage of the connecting points of the piping If bubbles come out the pipes have leakage 1 Air purging with vacuum pump 1 Completely tighten the flare nuts of the indoor and outdoor units confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Connect the charg...

Page 20: ... indicator is a little higher than the atmosphere pressure Then remove the charge hose from the 3 way valve 8 Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve 2 Air purging by refrigerant Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way ...

Page 21: ...erant if the pipe length 5m Procedure 1 Connect the charge hose to the charging cylinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure the liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cy...

Page 22: ...onnect the charge hose to the 3 way service port open the 2 way valve and the 3 way valve Connect the charge hose to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the li...

Page 23: ...le the indoor unit need to be repaired 1 Collecting the refrigerant into the outdoor unit Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position Remove the valve stem caps and confirm that the valve stems are in the opened position Be sure to use a hexagonal wrench to operate the valve stems 2 Connect the charge hose with the push pin of handle lo to the 3 way valv...

Page 24: ...by the refrigerant Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way valve Leave the valve on the charging cylinder closed 3 Air purging Open the valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approximately 45 for 3 ...

Page 25: ...o tighten the service port cap to a torque 18N m Be sure to check the gas leakage 6 7 Re installation while the outdoor unit need to be repaired 1 Evacuation for the whole system Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position 2 Connect the vacuum pump to 3 way valve s service port 3 Evacuation for approximately one hour Confirm that the compound meter indic...

Page 26: ...ale and record the weight 4 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant or can be charged with a little at a time approximately 150g each time operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the proced...

Page 27: ...26 Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage ...

Page 28: ...e above conditions certain safety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates beyond this figure the surface of the air conditioner may attract condensation Please set the vertical air flow louver to its maximum angle vertically to the floor and set HIGH fan mode 3 The optim...

Page 29: ...on lamp Lights up during Timer operation DEFROST indication lamp For cooling heating models only Lights up when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating operation DIGITAL DISPLAY Displays the current setting temperature and malfunction protection code when the air conditioner is in operation Frequency display This display is s...

Page 30: ...low 300RPM for certain time the unit will stop and the LED will display the failure 8 3 5 Inverter module protection The Inverter module has a protection function about current voltage and temperature If these protections happen the corresponding code will display on indoor unit and the unit will stop working 8 3 6 Indoor fan delayed open function When the unit starts up the louver will be active ...

Page 31: ...or Operation in cooling drying and fan only mode Operation in heating mode T1 Run supposed T1 26 high fan speed Run supposed T1 26 high fan speed T2 Refer to table 1 Refer to table 2 T3 Run with compressor frequency not higher than F14 3 minutes defrosting every 40 minutes when T4 7 2 minutes defrosting every 90 minutes when T4 7 T4 Run supposed T4 50 Run supposed T4 15 TP Run supposed T4 50 Run s...

Page 32: ...31 In the beginning 5 minutes after the compressor starts up if T2 Tcool 2 does not keep continuous 4 seconds and this situation happens 3 times the display area will show EC and AC will turn off ...

Page 33: ... is disabled and no setting temperature is displayed 3 Indoor fan can be set to high med low auto 4 The louver operates same as in cooling mode 5 Auto fan For MS9A 24HRDN1 QRC4W MS9A 24HRDN1 QRC8W 27 5 27 High Low 25 Medium 25 5 For other models a b c d 5 0 4 0 2 5 1 0 6 0 T1 24 e H H L 0 75 L H L 0 5 L H L 0 25 L L ...

Page 34: ...x T4FREMAX6 Fmax T4FREMAX7 Meanwhile the maximum frequency is limited by the indoor fan speed Indoor fan speed Maximum frequency High speed turbo function No limit Silent mode Fixed at F3 If users switch on AC by remote controller the compressor will run at the Fmax frequency for 7 minutes according to the outdoor ambient temp During the 7 minutes the frequency limitation is active 7 minutes later...

Page 35: ...he frequency to 3 grade higher until to FREMAX B E Increase the frequency to 2 grade higher until to FREMAX F G Increase the frequency to 1 grade higher until to FREMAXd H Keep the current frequency I Decrease the frequency to 1 grade lower until to F1 J Run at F1 for 1h if T1 Ts 2 the compressor will stop Meanwhile the compressor running frequency is limited by the current 50 T4 CoolT4Zone5I Cool...

Page 36: ...20 19 17 D A Cooling Heating While A B C means different fan speed of outdoor unit 8 4 2 3 Indoor fan running rules In cooling mode indoor fan runs all the time and the speed can be selected as high medium low auto and silent When the compressor is running the indoor fan is controlled as below ...

Page 37: ... to F1 and then runs at F1 If T3 54 the compressor will keep running at the current frequency T3 52 the compressor will not limit the frequency and resume to the former frequency T3 60 for 5 seconds the compressor will stop until T3 52 8 4 2 5 Evaporator temperature protection T2 0 the compressor will stop and restart when T2 5 0 T2 4 the compressor frequency will be limited and decreased to the l...

Page 38: ...mits to the following rule Fmax T4FREHEATMAX1 34 T4 Off 33 28 27 25 24 22 21 19 18 16 17 15 14 12 11 6 5 Fmax T4FREHEATMAX2 Fmax T4FREHEATMAX3 Fmax T4FREHEATMAX4 Fmax T4FREHEATMAX5 Fmax T4FREHEATMAX6 Fmax T4FREHEATMAX7 Fmax T4FREHEATMAX8 1 0 3 4 7 8 11 12 15 16 Fmax T4FREHEATMAX9 Fmax F21 Fmax F22 Fmax F23 Fmax F24 Fmax F25 ...

Page 39: ...he compressor running frequency will be controlled as below 5 0 4 5 3 5 3 0 2 5 2 0 1 5 T1 Ts ΔT 1 0 I G F E D C B A 0 5 4 0 H J While the zones of A B C are corresponding to different compressor running frequency ΔT 0 as default Note When T1 Ts keeps in the same temp zone for 3 minutes the compressor will run as the below rules A Increase the frequency to 3 grade higher until to FREMAX B E Increa...

Page 40: ...g rules 21 19 A C 18 16 D 15 13 12 10 B E Heating 8 4 3 3 Indoor fan running rules In heating mode indoor fan can be selected as high medium low auto and silent The anti cold wind function is preferential The running rules of anti cold wind function depend on both T1 and T2 that is more comfortable control When the compressor is running the indoor fan is controlled as below ...

Page 41: ...un 127 seconds with breeze During this period the anti cold wind is disabled Auto fan action in heating mode For MS9A 24HRDN1 QRC4W MS9A 24HRDN1 QRC8W 2 5 T1 Ts 2 0 High Low 1 0 Medium 1 5 For other models 1 0 2 0 3 0 4 0 0 0 T1 Ts ΔT L H L 0 4 L H L 0 6 L 5 0 6 0 6 5 H H L 0 8 L H L 0 6 L H L 0 2 L ...

Page 42: ...30 2 If the compressor cumulate running time is up to 35 minutes and T3 TCDI2 T3 T30SUBT3TWO T30 3 If the compressor cumulate running time is up to 29 minutes and T3 TCDI3 for 3 minutes 4 If the compressor cumulate running time is up to 120 minutes and T3 15 Condition of ending defrosting If any one of the following items is satisfied the defrosting will finish and the machine will turn to normal ...

Page 43: ...or fan breeze 10s xx 10s no longer than 10m 30s FrequencyF16 10s Frequency F3 xx 60 Compressor on off on on on off off off 4 way valve Outdoor fan Indoor fan Indoor fan breeze 10s xx no longer than 10m Frequency F16 30s 10s 10s Frequency F3 ACP 09CH25AELI ACP 12CH35AELI ACP 18CH50AELI ACP 22CH65AELI ...

Page 44: ...e will choose cooling heating or fan only mode according to ΔT ΔT T1 Ts ΔT T1 Ts Running mode ΔT 1 Cooling 1 ΔT 1 Fan only ΔT 1 Heating Indoor fan will run at auto fan of the relevant mode The louver operates same as in relevant mode If the machine switches mode between heating and cooling the compressor will keep stopping for 15 minutes and then choose mode according to T1 Ts If the setting tempe...

Page 45: ...button will carry the machine to forced auto mode If pressing the button once again within 5 seconds the machine will turn into forced cooling mode In forced auto forced cooling or any other operation mode pressing touch button will turn off the machine 8 4 6 2 In forced operation mode all general protections and remote control are available 8 4 6 3 Operation rules Forced cooling mode The compress...

Page 46: ...s low speed When heating the setting temperature decreases 1 be higher than 17 every one hour 2 hours later the setting temperature stops rising and indoor fan is fixed as low speed Anti cold wind function has the priority 8 4 8 3 Timer setting is available 8 4 8 4 When user uses timer off function in sleep mode or sleep function in timer off mode if the timing is less than 7 hours sleep function ...

Page 47: ...vere cold weather 8 4 11 Frequency limitation protection V VOLT_RST1_ADD Normal VOLT_LIM_FREQ1_ADD VOLT_LIM1_ADD VOLT_RST2_ADD VOLT_LIM2_ADD VOLT_LIM_FREQ2_ADD The PCB will detect the voltage of power supply and adjust the compressor running frequency to protect the system In the first 10 seconds after power on this protection is inactive When this protection happens it will last 3 minutes and the...

Page 48: ... circuit EC Refrigerant leakage detection F1 Outdoor ambient temperature sensor open circuit or short circuit F2 Condenser coil temperature sensor open circuit or short circuit F3 Compressor discharge temperature sensor open circuit or short circuit F4 Outdoor EEPROM parameter error F5 Outdoor fan speed has been out of control P0 IPM malfunction or IGBT over strong current protection P1 Over volta...

Page 49: ...ace the main PCB directly Otherwise check whether the EEPROM chip plugged in main PCB well Yes No Yes Correct the connection Replace the main PCB Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code EEPROM a read only memory whose contents can be erased and reprogrammed using a pulsed voltage ...

Page 50: ...he error still displaying after several minutes No Yes Change the outdoor main PCB Power on Is the error extinguished Check all the wirings between indoor and outdoor indoor main PCB and outdoor main PCB following the wiring diagram Are all the wirings connected correctly Is the wiring to the indoor main PCB connected correctly Change the indoor main PCB Yes Change the outdoor main PCB No Is the w...

Page 51: ...displaying the error code Shut off the power supply rotate the fan by hand Does it rotate properly The unit operates normally Find out the cause and have it solved For example check whether the fan is blocked or the bearing is broken Check the wires of fan motor Are all the connections good No Yes No Correct the connections No Yes Check whether the main PCB is normal through index 2 Yes Yes Check ...

Page 52: ...esistance value is zero the fan motor must has problems and need to be replaced 3 Outdoor DC Fan Motor control chip is in outdoor PCB For MS9AU 12HRDN1 QRC4W MS9AU 12HRDN1 QRC8W MS9AU 18HRDN1 QRC4W and MS9AU 18HRDN1 QRC8W NO 1 2 3 4 5 Color Orange Grey White Pink Black Signal Hu Hv Hw Vcc GND Color Red Blue Yellow Signal W V U 1 Release the UVW connector Measure the resistance of U V U W V W If th...

Page 53: ...n 3 5 in feedback signal connector If any voltage is not positive voltage fluctuation the fan motor must has problems and need to be replaced Index2 1 Indoor AC Fan Motor Power on and set the unit running in fan mode at high fan speed After running for 15 seconds measure the voltage of pin1 and pin2 If the value of the voltage is less than 100V 208 240V power supply or 50V 115V power supply the PC...

Page 54: ...3 Check the connections between temperature sensor and PCB Are the connections good Correct the connections No Yes Yes Replace indoor or outdoor PCB Replace the sensor and c h e c k i f t h e p r o b l e m happen again Check the resistance value of the sensor via table1 and table 2 is it normal No ...

Page 55: ... Does the problem remain again No Is there any leakage Especially the connection parts such as the gas valve and the liquid valve No Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code Replace indoor PCB Yes Repair the leakage and recharge the refrigerant Yes Clear the blocking Yes Is there any block i n g Such as the capillary or the welded points of the...

Page 56: ...apply silicon grease No IPM continuity check Check if the IPM terminal resistance values are uniform Yes Replace the IPM board or replace the main PCB if the IPM board and main PCB are integrated together No Check if the outdoor fan runs properly or the outdoor unit ventilation is good Yes No Refer to the solution of fan speed has been out of control malfunction Find out the cause and have it solv...

Page 57: ...ets normal No Yes No Correct the connections or replace the wires Yes Power on and when the unit is in standby check if the voltage between P and N is around DC 310V or 340V or 380V For different kinds of units the voltage differs Consult with technical engineer to get definite value Then start up the unit measure the voltage between P and N Is it in 220V 400V Replace outdoor mainl PCB Yes No Repl...

Page 58: ...turn it on 10 minutes later Check if the unit can start normally No Check if the refrigerant charge volume is normal Recharge the correct refrigerant volume Refrigerant system is blocked such as capillary or welded point of pipes Yes Check if all the connection especially the connection of OLP Over Load Protector sensor is good Correct the connection No Measure the resistance between the two ports...

Page 59: ...on grease No IPM continuity check Check if the IPM terminal resistance values are uniform Yes Replace the IPM board or replace the main PCB if the IPM board and main PCB are integrated together No Check if the outdoor fan runs properly or the outdoor unit ventilation is good Yes No Refer to the solution of fan speed has been out of control malfunction Find out the cause and have it solved Yes Chec...

Page 60: ...LTAGE CAUTION Connect discharge resistance approx 100Ω 40W or soldering iron plug between terminals of the electrolytic capacitor on the contrary side of the outdoor PCB Note The picture above is only for reference The plug of your side may be different Main parts check 1 Temperature sensor checking Disconnectthe temperature sensor from PCB measure the resistance value with a tester ...

Page 61: ...esistanceValue KΩ 26 9 20 7 16 1 12 6 10 8 5 2 3 5 2 4 Table 2 Some frequently used R Tdata for T5 sensor Temperature 5 15 25 35 60 70 80 90 100 ResistanceValue KΩ 141 6 88 56 1 36 6 13 8 9 7 6 9 5 3 7 Resistance value KΩ Temperature Spec Code 2T0032300813 2T0032400238 Model Compressor DA108X1C 23EZ DA108X1C 23EZ Indoor fan motor RPG20D RPG20D Code 2T0032800604 2T0033000466 Model Compressor DA130M...

Page 62: ...ue 3 IPM continuity check Turn off the power let the large capacity electrolytic capacitors discharge completely and dismount the IPM Use a digital tester to measure the resistance between P and UVWN UVW and N Digital tester Normal resistance value Red Black Several MΩ P N U V W Digital tester Normal resistance value Red Black Several MΩ U N V W 4 Indoor AC Fan Motor Measure the resistance value o...

Page 63: ...0D RPG28D Black Red 400Ω 8 20 260Ω 8 20 White Black 383Ω 8 20 385Ω 8 20 Measure the resistance value ofeach winding by using the tester Position Resistance Value YDK36 4C A Black Red 275Ω 8 20 Red Yellow 124Ω 8 20 Yellow Blue 124Ω 8 20 ...

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