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3.2 Outdoor Unit

More than 30cm

More than 60cm

More than 200cm

More than 30cm

More than 60cm
(Service space

)

Fence

or

ob

stacl

es

Model

W

D

H

W1

A

B

PAC3003711B

845

320

700

908

560

335

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Summary of Contents for PAC3003711A

Page 1: ...Service Manual PAC3003711A PAC3003711B ...

Page 2: ...n 11 5 4 Installation for the first time 12 5 5 Adding the refrigerant after running the system for many years 13 5 6 Re installation while the indoor unit need to be repaired 14 5 7 Re installation while the outdoor unit need to be repaired 15 6 Operation Characteristics 16 7 Electronic function 17 7 1 Abbreviation 17 7 2 Display function 17 7 3 Main Protection 18 7 4 Operation Modes and Function...

Page 3: ...areful of the case edges and the fins on the condenser and evaporator For installation always contact the dealer or an authorized service center Do not install the product on a defective installation stand Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not let th...

Page 4: ...away properly A bad connection may cause water leakage Keep level even when installing the product It can avoid vibration of water leakage Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors Use two or more people to lift and transport the product Do not install the product where it will be exposed to ...

Page 5: ...of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may 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 ...

Page 6: ...2 Function Model Names of Indoor Outdoor Units On Off Capacity Indoor units Outdoor units 30k PAC3003711A PAC3003711B ...

Page 7: ...3 Dimension 3 1 Indoor Unit For PAC3003711A model Model W D H PAC3003711A 1080 226 335 ...

Page 8: ...3 2 Outdoor Unit More than 30cm More than 60cm More than 200cm More than 30cm More than 60cm Service space Fence or obstacles Model W D H W1 A B PAC3003711B 845 320 700 908 560 335 ...

Page 9: ...rant Cycle Diagram For cooling only models INDOOR OUTDOOR LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR CAPILIARY TUBE T2 Evaporator temp sensor T1 Room temp sensor ACCUMULATOR ...

Page 10: ... 3 4 6500 663kgf cm 6700 683kgf cm 5 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 on ...

Page 11: ...Pipe size Standard length m Max Elevation B m Max Length A m Additional refrigerant g m Gas Liquid PAC3003711A PAC3003711B 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 ...

Page 12: ...ection to the vacuum pump 4 Fully open the handle Lo of the manifold valve 5 Operate the vacuum pump to evacuate 6 Make evacuation for 30 minutes and check whether the compound meter indicates 0 1Mpa If the meter does not indicate 0 1Mpa after pumping 30 minutes it should be pumped 20 minutes more If the pressure can t achieve 0 1Mpa after pumping 50 minutes please check if there are some leakage ...

Page 13: ...rge 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 liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the valves Low side on the charge set and charge the system with liquid refrigerant...

Page 14: ...t the cooling cycle and stop it when the gauge indicates 0 1MPa 6 Set the 3 way valve to the closed position immediately Do this quickly so that the gauge ends up indicating 0 3 to 0 5Mpa Disconnect the charge set and tighten the 2 way and 3 way valve s stem nuts Use a torque wrench to tighten the 3 way valves service port cap to a torque of 18N m Be sure to check for gas leakage 2 Air purging by ...

Page 15: ...linder 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 liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Open the valves Low side on the charge set and charge t...

Page 16: ... tropical models CAUTION 1 If the air conditioner is used beyond the 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 maxi...

Page 17: ...ture settings when the air conditioner is operational Displays the room temperature in FAN mode Displays the self diagnostic codes Dispalys for three seconds when Timer ON Fresh Swing Turbo or Silence feature is activated Dispalys for three seconds when Fresh Swing Turbo or Silence feature is cancelled Dispalys under deforsting operation Dispalys when anti cold air feature is activated under heati...

Page 18: ...ressor and outdoor fan will shut off 7 4 Operation Modes and Functions 7 4 1 Fan mode 1 Outdoor fan and compressor stop 2 Temperature setting function is disabled and no setting temperature is displayed 3 Indoor fan can be set to high med low auto 4 The louver operates the same as in cooling mode 5 Auto fan High Low Medium 7 4 2 Cooling Mode 7 4 2 1 Compressor running rules When indoor room temp T...

Page 19: ...During the protection the outdoor fan keeps working 7 4 3 Heating Mode 7 4 3 1 Compressor running rules T1 Off On 7 4 3 2 Outdoor fan running rules The outdoor units have single fan speed The outdoor fan will run following the compressor except when AC is in evaporator high temp protection in heating mode condenser high temp protection in cooling mode defrosting mode and the current protection 7 4...

Page 20: ...ning with 10 minutes on and then 5 minutes off The indoor fan will keep running at low speed 8 4 5 2 In drying mode if room temperature is lower than 10 the compressor will stop and not resume until room temperature exceeds 13 8 4 5 3 The evaporator anti freezing protection is the same as that in cooling mode 7 4 6 Forced operation function Forced cooling mode The compressor and outdoor fan keep r...

Page 21: ...ant Leakage Detection With this new technology the display area will show EC when the outdoor unit detects refrigerant leakage When compressor is active the value of the Coil temperature of evaporator T2 has no change or very little change 7 4 9 8 Heating optional When the compressor is running the indoor fan motor will run without anti cold air function When the compressor is off the indoor fan m...

Page 22: ...rol 5 times X E5 Indoor room temperature sensor T1 open circuit or short circuit 6 times X E6 Evaporator coil temperature sensor T2 open circuit or short circuit 7 times X E7 Condenser coil temperature sensor T3 open circuit or short circuit only for MSABF 30HRN1 NB8W 2 times O EC Refrigerant Leakage Detection 9 times X E9 Indoor outdoor units communication error only for MSABE 24CRN1 NB6W MSABE 3...

Page 23: ... 1 EEPROM parameter error diagnosis and solution Yes Replace the indoor outdoor main PCB Power off then restart the unit 2 minutes later EEPROM a read only memory whose contents can be erased and reprogrammed using a pulsed voltage ...

Page 24: ...s been out of control diagnosis and solution Power off then restart the unit 2 minutes later Shut off the power supply Rotate the fan by hand The unit operates normally Find out the cause and have it solved Check the wiring of fan motor No Yes No Correct the connections No No Replace the fan motor Yes Yes Measure the voltage for the fan motor from the main PCB Yes Replace the main PCB No ...

Page 25: ...ease contact the technical engineer 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 PCB must has problems and need to be replaced ...

Page 26: ... of temperature sensors diagnosis and solution Check the connection between temperature sensor and PCB Correct the connection No Yes Replace indoor or outdoor main PCB Measure the resistance value of the sensor Repalce the sensor No Yes ...

Page 27: ...ol air blowing out from indoor air outlet Yes Yes Check if T2 sensor No Check leakage of system No Power off then restart the unit 2 minutes later Replace indoor PCB Yes Repair the leakage and recharge the refrigerant Yes check blockIng of system and clear the blocking ...

Page 28: ...in PCB Power on Is the error extinguished Replace the outdoor main PCB Power on Is the error extinguished Check the outdoor wiring connection Check the outdoor wiring connection Replace the indoor main PCB Power on Is the error extinguished Replace the indoor main PCB Power on Is the error extinguished Yes Replace the outdoor main PCB Replace the outdoor main PCB No Replace the indoor main PCB Rep...

Page 29: ... Compressor discharge temp T5 sensor Measure the resistance value of each winding by using the multi meter Table1 Some frequently used R T data for T1 T2 T3 and T4 sensor Temperature 5 10 15 20 25 30 40 50 60 Resistance Value KΩ 26 9 20 7 16 1 12 6 10 8 5 2 3 5 2 4 Table2 Some frequently used R T data for T5 sensor Temperature 5 15 25 35 60 70 80 90 100 Resistance Value KΩ 141 6 88 56 1 36 6 13 8 ...

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