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 28 

3. Open the valves (Low side) on the charge set and discharge the refrigerant until the gauge indicates 

0.05 to 0.1Mpa. 
If the pressure when the air conditioner is not running is higher than 0.1Mpa, discharge the refrigerant 
until the gauge indicates 0.05 to 0.1 Mpa. Discharge the refrigeration gradually; if it is discharged 
suddenly, the refrigeration oil will be discharged. 
 

6.11 Evacuation 

  Procedure: 

1. Connect the vacuum pump to the charge set

’

s center hose. 

2. Evacuation for approximately one hour. 

Confirm that the gauge needle has moved toward -0.1 Mpa (-76 cmHg) [vacuum of 4 mmHg or less]. 

3. Close the valve (Low side) on the charge set, turn off the vacuum pump, and confirm that the gauge 

needle does not move (approximately 5 minutes after turning off the vacuum pump). 

4. Disconnect the charge hose from the vacuum pump. 

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Summary of Contents for ACP-09CH25AEI

Page 1: ...ACP 09CH25AEI ACP 12CH35AEI ACP 18CH50AEI ACP 24CH70AEI ACP 12CH35AECI Service manual ENG RoHS NNO 1 09 ...

Page 2: ......

Page 3: ...its installation 21 6 5 Outdoor units installation 22 6 6 Electrical work 23 6 7 Air purging with vacuum pump 24 6 8 Pumping down Re installation 25 6 9 Re air purging Re installation 26 6 10 Balance refrigerant of the 2 way 3 way valves 27 6 11 Evacuation 28 6 12 Gas charging 29 7 Operation characteristics 30 8 Electronic function 31 8 1 Abbreviation 31 8 2 Display function 31 8 3 Main Protection...

Page 4: ...isk 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 fire or electric shock Do not modify or...

Page 5: ...re is risk of fire or electric shock Do not plug or unplug the power supply plug during operation There is risk of fire or electric shock Do not touch operation the product with wet hands There is risk of fire or electric shock 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 electric parts It may cause fire failu...

Page 6: ...er with a stove etc There is risk of fire or electric shock Turn the main power off when cleaning or maintaining the product There is risk of electric shock When the product is not be used for a long time disconnect the power 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 ...

Page 7: ...etc There is risk of fire electric shock or damage to the plastic parts of the product Do not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury Do not step on or put anything on the product outdoor units There is risk of personal injury and failure of product Always insert the filter securely Clean the filter every two weeks or m...

Page 8: ... burn of explode If the liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote of the batteries have leaked The chemical in batteries could cause burns or other health hazards The designs and information in this book are subject to change without notice for product improvement PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 9: ...el Names of Indoor Outdoor Units Series Capacity Indoor units Outdoor units ACP 09CH25AEI 9k ACP 12CH35AEI ACP 12CH35AECI 12k ACP 18CH50AEI 18k Inverter 24k ACP 24CH70AEI PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 10: ... Indoor unit Operation by remote controller Anti freezing control in cooling mode Time Delay Safety control Indoor fan speed control Two direction air vane Sleep mode auto control Independent dehumidification Air flow Direction control Flexible wiring connection Auto defrost Anti cold function Self diag function Auto restart Prevent the cold wind at the beginning of unit start Golden fin Optional ...

Page 11: ...t operation mode Hydrophilic aluminum fin It is only operated in the heating operation mode except defrosting operation Valve protection cover 4 way valve control Made from electrolytic zinc steel sheet and anti rust coated components Low noise air flow system Anti rust cabinet Driving heating at 15 PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 12: ...9 3 Dimension 3 1 Indoor Units For ACP 09CH25AEI ACP 12CH35AEI ACP 12CH35AECI models ...

Page 13: ...10 For ACP 18CH50AEI model For ACP 24CH70AEI model Model W H D ACP 09CH25AEI ACP 12CH35AEI ACP 12CH35AECI ACP 18CH50AEI 790 275 190 ACP 24CH70AEI 1030 313 221 940 275 198 ...

Page 14: ...ed for reference Model W H D B C F ACP 09CH25AEI 700 535 235 458 250 60 ACP 09CH25AEI ACP 12CH35AEI 670 540 250 484 275 45 ACP 09CH25AEI ACP 12CH35AECI ACP 18CH50AEI 760 590 285 530 290 63 ACP 24CH70AEI 845 695 335 560 335 73 PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 15: ...12 4 Refrigerant Cycle Diagram PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 16: ...13 5 Wiring Diagram 5 1 Indoor Units ACP 09CH25AEI ACP 12CH35AEI ACP 12CH35AECI PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 17: ...14 ACP 18CH50AEI ACP 24CH70AEI PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 18: ...15 ACP 09CH25AEI PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 19: ...16 ACP 18CH50AEI PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 20: ...17 ACP 09CH25AEI ACP 12CH35AEI ACP 12CH35AECI PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 21: ...18 ACP 24CH70AEI PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 22: ...d current of appliance Nominal cross sectional area mm 3 and 6 0 75 6 and 10 1 0 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 on the side panel of the unit Please refer to the nameplate before selecting the cable fuse and switch PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 23: ...ndard length m Max Elevation B m Max Length A m 9k 12k 5 8 20 18k 24k 5 10 25 Caution Capacity test is based on the standard length and maximum allowance length is based on the system reliability Oil trap should be installed per 5 7 meters PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 24: ...6 4 Indoor units installation 1 Fit the Installation Plate 2 Drill a hole in the wall 3 Connective Pipe and Drainage Installation 4 Install the indoor units PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 25: ...installation wall should be solid brick concrete or the same intensity construction or actions to reinforce damping supporting should be taken The connection between bracket and wall bracket and the air conditioner should be firm stable and reliable l Be sure there is no obstacle which block radiating air 2 Settlement of outdoor unit Anchor the outdoor unit with a bolt and nut 10 or 8 tightly and ...

Page 26: ...e 3 The creepage protector and main power switch with a 1 5 times capacity of Max Current of the unit should be installed in power circuit 4 Ensure the air conditioner is grounded well 5 According to the attached Electrical Connection Diagram located on the panel of the outdoor unit to connect the wire Electrical connection between indoor units and outdoor units 1 Connect the indoor units connecti...

Page 27: ...valve Compound meter Pressure gauge 76cmHg Handle Lo Charge hose Charge hose Outdoor unit Close Three way valve Procedure 1 Completely tighten the flare nuts of the indoor and outdoor units connect the manifold valve charge 2 Connect the charge hose connection to the vacuum pump 3 Fully open the handle Lo of the manifold valve 4 Operate the vacuum pump to evacuate After starting evacuation slightl...

Page 28: ...installation 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 Operate the unit for 10 to 15 minutes 3 Stop operation and wait for 3 minutes then connect the charge set to the service port of the 3 way valve Conn...

Page 29: ... check for gas leakage 6 9 Re air purging Re installation 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 ...

Page 30: ...a hexagonal wrench to operate the valve stems 7 Mount the valve stems nuts and the service port cap Be sure to use a torque wrench to tighten the service port Be sure to check the gas leakage 6 10 Balance refrigerant of the 2 way 3 way valves Procedure 1 Confirm that both the 2 way and 3 way valves are set to the open position 2 Connect the charge set to the 3 way valve s service port Leave the va...

Page 31: ...nly the refrigeration oil will be discharged 6 11 Evacuation Procedure 1 Connect the vacuum pump to the charge set s center hose 2 Evacuation for approximately one hour Confirm that the gauge needle has moved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less 3 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes a...

Page 32: ...e the air be careful of the liquid refrigerant 3 Open the valves Low side on the charge set and charge the system with liquid refrigerant 4 Disconnect the charge hose from the 3 way valve s service port immediately Stopping partway will allow the refrigerant to be discharged If the system has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner befo...

Page 33: ...bnormally 2 Room relative humidity less than 80 If the air conditioner operates in excess of 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 Optimum performance will be achieved within this operating temperature PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 34: ...n indoor display board Auto indicator This indicator illuminates when the air conditioner is in AUTO operation Timer indicator This indicator illuminates when TIMER is set ON OFF PRE DEF Indicator This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating mode OPERATION indicator This indicator illuminates when t...

Page 35: ...unction against current voltage and temperature If these protections happen the corresponding code will display on indoor unit 8 3 6 Indoor fan delayed open function When the system starts up the louver will be active immediately and the indoor fan will open 10s later If the system runs in heating mode the indoor fan will be also controlled by anti cold wind funtion 8 3 7 Compressor preheating fun...

Page 36: ...emperature 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 8 4 2 Cooling Mode 8 4 2 1 Compressor running rules The operation frequency of compressor after starting submits to following rule 45 43 40 38 30 28 22 20 Fmax F4 Fmax F7 Fmax F8 Fmax F6 Fmax F3 If users switch on AC by remote controller the compressor will run at the Fmax ...

Page 37: ...Increase the frequency to the higher level until to F8 F Keep the current frequency G Decrease the frequency to the lower level until to F1 H Run at F1 for 1h if T1 Ts 2 compressor will stop Meanwhile the compressor running frequency is limited by the current I3COOL I2COOL Off Decrease Hold Resume I1COOL Off Compressor stops Decrease Decrease the running frequency to the lower level Hold Keep the ...

Page 38: ...60 the compressor frequency will decrease to the lower level until to F1 and then runs at F1 When T3 54 the compressor w ill keep running at the current frequency When T3 52 the compressor will not limit the frequency and resume to the former frequency When T3 60 for 5 seconds the compressor will stop until T3 52 8 4 2 5 Evaporator low temperature T2 protection When T2 0 the compressor will stop a...

Page 39: ...34 Off 33 28 27 25 24 22 21 19 18 16 17 15 14 Fmax F4 12 11 6 5 If users switch on AC by remote controller the compressor will run at the Fmax frequency for 7 minutes according to outdoor ambient temp During the 7 minutes frequency limitation is active 7 minutes later the compressor running frequency will be controlled as below 5 0 4 5 3 5 3 0 2 5 2 0 1 5 1 0 H G H F E D C B A 0 5 While Temp zon A...

Page 40: ...frequency is limited by the current I3HEAT I2HEAT I1HEAT Off Decrease Hold Resume Off Compressor stops Decrease Decrease the running frequency to the lower level Hold Keep the current frequency Resume No limitation for frequency Note When AC is in hold zone for 3 minutes the compressor frequency will rise to the higher level frequency will increase twice at most 8 4 3 2 Indoor fan running rules 44...

Page 41: ...fan and the anti cold wind function is preferential For MSR1 09ARDN1 QC2 MSR1 12ARDN1 QC2 MSR1 18ARDN1 QC2 C models when the PTC heater is not open the indoor fan will run as following rules 44 39 36 35 Setting Med Breeze Off 17 32 Low When the PTC heater is open the indoor fan will run as following rules 40 35 32 31 Setting Med Breeze Off 17 28 Low Auto fan action in heating mode 8 4 3 3 Outdoor ...

Page 42: ...f T2 has decreased more than 5 the AC will enter the defrosting mode Condition 3 No matter what value T4 is if the machine runs with T3 3 for more than 120 minutes and T3 keeps lower than TCDI 4 for more than 3 minutes the machine will enter defrosting mode no matter if T2 drops more than 5 or not Condition of ending defrosting If any one of the following items is satisfied the defrosting will fin...

Page 43: ...40 Defrosting action For 9k 12k models For 18k 24k models PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 44: ... between 17 30 In auto mode the machine 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 operate the same as in relevant mode If the machine switches mode between heating and cooling the compressor will keep stopping for 15 minutes and then rechoose m...

Page 45: ...4 6 3 Operation rules Forced cooling mode The compressor runs at F2 frequency and indoor fan runs as breeze After running for 30 minutes the machine will turn to auto mode as 24 setting temperature Forced auto mode The action of forced auto mode is the same as normal auto mode with 24 setting temperature 8 4 7 Timer function 8 4 7 1 Timing range is 24 hours 8 4 7 2 Timer on After turning off the m...

Page 46: ...ious operation setting not including Swing function automatically after 3 minutes when power returns If the memorization condition is forced cooling mode the unit will run in cooling mode for 30 minutes and turn to auto mode as 24 setting temp If AC is off before power off and AC is required to start up now the compressor will have 1 minute delay when power on Other conditions the compressor will ...

Page 47: ... P0 IGBT over strong current protection P1 Over voltage or too low voltage protection P2 Temperature protection of compressor top P4 Inverter compressor drive error Note E4 P3 Reserved function 9 2 Diagnosis and Solution 9 2 1 EEPROM parameter error diagnosis and solution Replace indoor PCB Shut off the power supply and turn on it 5s later The problem comes out again Is the EEPROM chip plugged in ...

Page 48: ...door unit Is the connection of L N S and GND good No Is the LED4 red bright and LED1 yellow blinking on outdoor PCB The power supply for outdoor PCB is fail Check the wiring on outdoor PCB comparing with wiring plate Is the connection good The unit does not work normally Turn off the power supply after 1 minute connect the power supply turn on the unit with remote controller Correct the connection...

Page 49: ... work normally Turn off the unit rotate the cross fan Does it rotate freely No Disassemble the connection between fan and motor check if the bearing is normal If not change the bearing If yes follow the below step Replace the fan motor Yes Replace the PCB No Yes Is the voltage being applied to the fan motor Yes Shut off the power supply and turn on it 5s later PDF 文件使用 pdfFactory Pro 试用版本创建 www fi...

Page 50: ... the power supply is normal Yes No Yes Fastening the IPM to the radiator No Check whether the connections between outdoor PCB and IPM are good Check whether the IPM is fixed to radiator tightly Replae the IPM The unit does not work normally Replace the compressor Yes Replace outdoor PCB Yes Check the connections between the sensors and the PCB Are the connections good Replace the sensor and check ...

Page 51: ...ormality the same after gas charging Replace the outdoor PCB No Yes Is protector normal No No Is the connection good There is block Such as capillary or welded points of the pipes Is refrigerant circulation volume normal Replace it Reconnect it Does compressor operate PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

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