Air-Con A17CI4C4M09 Service Manual Download Page 1

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SERVICE MANUAL

AIR-CON SILVER SERIES

DC INVERTER

SPLIT WALL-MOUNTED AC

V1.0

Oct, 2009

A17EM4C4M09 / A17CI4C4M09

A18EM4C4M12 / A18CI4C4M12

A17EM4C4M18 / A17CI4C4M18

A22EM4C4M24 / A22CI4C4M24

Summary of Contents for A17CI4C4M09

Page 1: ...SERVICE MANUAL AIR CON SILVER SERIES DC INVERTER SPLIT WALL MOUNTED AC V1 0 Oct 2009 A17EM4C4M09 A17CI4C4M09 A18EM4C4M12 A18CI4C4M12 A17EM4C4M18 A17CI4C4M18 A22EM4C4M24 A22CI4C4M24...

Page 2: ...6 Re air purging Re installation 17 7 7 Balance refrigerant of the 2 way 3 way valves 18 7 8 Evacuation 19 7 9 Gas charging 20 8 Operation characteristics 21 9 Electronic function 22 9 1 Abbreviation...

Page 3: ...a defective installation stand It may cause injury accident or damage to the product Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall wi...

Page 4: ...directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation Operational Do not expose the skin d...

Page 5: ...3 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...

Page 6: ...decide the louver direction according to operation mode Turbo wind high med low breeze Restarting is for approx 3 minutes Prevent the water being frozen on evaporator by sensing the evaporator pipe te...

Page 7: ...ion cover It protects the valves and prevents water from dripping The unit can operate in cooling mode at low ambient temperature conditions The unit has 3 mins delay between continuously ON OFF opera...

Page 8: ...6 3 Dimension 3 1 Indoor Unit Dimension Mode W H D MSC 09CRDN1 NR0 710 250 195 MSC 12CRDN1 NR0 790 265 195 MSC 18CRDN1 NQ0 920 292 225 MSC 24CRDN1 NQ0W 1080 330 228...

Page 9: ...7 3 2 Outdoor Unit Dimension Mode W H D L1 L2 L3 030 700 535 235 458 250 535 110 780 540 250 549 250 540 150 760 590 285 530 315 590 210 845 695 335 560 335 695...

Page 10: ...8 4 Specification Please see the special file about the specifications 5 Refrigerant cycle diagram Cooling only...

Page 11: ...9 6 Wiring diagram 6 1 Indoor Unit MSC 09CRDN1 NR0 MSC 12CRDN1 NR0 MSC 18CRDN1 NQ0...

Page 12: ...10 MSC 24CRDN1 NQ0W 6 2 Outdoor Unit MOA 09CDN1 NR0...

Page 13: ...11 MOB 12CDN1 NR0...

Page 14: ...12 MOC 18CDN1 NQ0...

Page 15: ...installation Outside diameter Torque mm inch Kgf m 6 35 1 4 1 8 9 53 3 8 4 2 12 7 1 2 5 5 15 9 5 8 6 6 7 2 Connecting the cables The power cord of connect should be selected according to the followin...

Page 16: ...lity Oil trap should be installed per 5 7 meters 7 4 Air purging of the piping and indoor unit Required tools Hexagonal wrench adjustable wrench torque wrenches wrench to hold the joints and gas leak...

Page 17: ...one minute 5 Use torque wrench to tighten the service port cap to a torque of 1 8 kgf m 18n m 6 Set the 3 way valve to the opened position 7 Mounted the valve stem nuts to the 2 way and 3 way valves...

Page 18: ...hose with the push pin to the gas service port 5 Air purging of the charge hose Open the low pressure valve on the charge set slightly to purge air from the charge hose 6 Set the 2 way valve to the cl...

Page 19: ...te repeat 3 times After purging the air use a torque wrench to tighten the flare nut to on the 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigera...

Page 20: ...ce port 3 Open the valves Low side on the charge set and discharge the refrigerant until the gauge indicates 0 05 to 0 1Mpa If there is no air in the refrigeration cycle the pressure when the air cond...

Page 21: ...ved 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...

Page 22: ...fied amount of refrigerant if can be charged with a little at a time approximately 150g each time0 while operating the air conditioner in the cooling cycle however one time is not sufficient wait appr...

Page 23: ...above conditions certain safety protection features may come into operation and cause the unit to function abnormally 2 Room relative humidity less than 80 If the air conditioner operates in excess of...

Page 24: ...emperature when the air conditioner is in FAN only operation and the range of that is 0 50 When the unit stops operation it returns to original factory settings Displays the malfunction code or protec...

Page 25: ...rned on the indoor fan can operate 10 seconds after the action of louver 9 3 11 Compressor preheating functions 1 Preheating permitting condition If T4 outdoor ambient temperature 3 and the machine co...

Page 26: ...l change to rating speed the frequency of compressor will be fixed as rating value Any condition of above is not satisfied the machine can not be turned into rating capacity test mode 2 The machine wi...

Page 27: ...g to T 9 7 4 If the setting temperature is modified the machine will rechoose running function 9 8 Forced operation function 9 8 1 Forced cooling and auto function can carry out with a touch button In...

Page 28: ...g on time 9 11 5 When user uses timer off function in sleep mode or sleep function in timer off mode if the timing time is less than 7 hours sleep function will be cancelled when reaching the setting...

Page 29: ...E2 Zero crossing signal error E3 Indoor fan speed out of control E5 Open or short circuit of outdoor temperature sensor E6 Open or short circuit of room or evaporator temperature sensor E7 Outdoor fan...

Page 30: ...28 Note E4 P3 Reserved function 10 2 Diagnosis and Solution 10 2 1 E0 EEPROM parameter error error diagnosis and solution Circuit or software error on indoor PCB Replace indoor PCB...

Page 31: ...and GND good Is the GND connection on outdoor PCB good NO NO Reconnect and retest again Is the LED4 red on outdoor PCB bright and LED1 yellow blinking Replace outdoor e box Yes Yes The power supply fo...

Page 32: ...er on Is the failure cleared NO YES Check the compressor NO Is the indoor temperature and evaporator sensor connector and connection good Repair the connector and reconnect Replace the sensor and chec...

Page 33: ...nce of inverter compressor is it 0 71ohm YES Replace inverter compressor Reconnect and retry NO NO Is the power supply good Be sure the power supply is normal when using the units NO YES Replace the o...

Page 34: ...bient temp T4 sensor Compressor exhaust temp Te sensor Measure the resistance value of each winding by using the multi meter Some frequently used R T data for T1 T2 T3 and T4 sensor Temperature 5 10 1...

Page 35: ...33 K...

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