AirQ ISM-H24CODC, Service Manual

Page 1: ...SERVICE MANUAL AirQ AIRCONDITIONER DC INVERTER SPLIT WALL MOUNTED TYPE ISM H24CODC V1 1 Jan 2008...

Page 2: ...Pipe length and the elevation 12 7 4 Air purging of the piping and indoor unit 12 7 5 Pumping down Re installation 14 7 6 Re air purging Re installation 15 7 7 Balance refrigerant of the 2 way 3 way v...

Page 3: ...8 15 Ionizer Plasma dust collector function optional 30 9 Troubleshooting 31 9 1 Indoor Unit Error Display 32 9 2 Diagnosis and Solution 33 9 3 Key parts checking 36...

Page 4: ...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 5: ...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 6: ...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 7: ...ion 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 temperature in cooling mod...

Page 8: ...ency at operation mode Hydrophilic aluminum fin It is only operated in the heating operation mode except defrosting operation Anti rust cabinet Valve protection cover 4 way valve control Made from ele...

Page 9: ...6 3 Dimension 3 1 Indoor Unit ISM H24CODC...

Page 10: ...7 3 2 Outdoor Unit ISM H24CODC...

Page 11: ...lling Input W 74 70 62 55 Capacitor uF 3 Indoor fan motor Speed hi mi lo r min 1260 1210 1120 1020 Indoor air flow Hi Mi Lo m3 h 1150 1080 960 Indoor noise level Hi Mi Lo dB A 48 45 41 Dimension W H D...

Page 12: ...9 5 Refrigerant cycle diagram...

Page 13: ...10 6 Wiring diagram 6 1 Indoor Unit ISM H24CODC...

Page 14: ...11 6 2 Outdoor Unit ISM H24CODC...

Page 15: ...8 16 0 3 8 9 52 5 10 25 30 Caution Capacity is base on standard length and maximum allowance length is base of reliability Oil trap should be installed per 5 7 meters 7 4 Air purging of the piping and...

Page 16: ...and then wait for 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...

Page 17: ...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 18: ...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 19: ...ice 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 con...

Page 20: ...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 21: ...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 22: ...ir 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 automati...

Page 23: ...ction function against current voltage and temperature If these protections happened the corresponding code will display on indoor unit LED 8 3 6 Sensor protection at open circuit and breaking disconn...

Page 24: ...ter start if T stays in a zone for 3 minutes the frequency will change as follow Zone A Current frequency rise a grade till the maximum grade Zone B Elevate or keep or descend the frequency of compres...

Page 25: ...de 2 Indoor fan turns to turbo speed 3 After running for 30 minutes the machine will turn back to previous setting mode 8 5 6 Indoor fan operation rule 1 In cooling mode indoor fan runs all the time a...

Page 26: ...23 8 6 4 Horizontal louver action is the same as that in cooling mode...

Page 27: ...oor fan speed can be set as high medium low or auto grade but anti cold wind function is preferential Auto fan action in heating mode 8 7 3 After starting the operation frequency of compressor submits...

Page 28: ...nd T3 keeps lower than 4 for more than 3 minutes Condition 2 If T4 0 The program judges according to the condition 1 if the two items are satisfied then judges if T2 has descended for more than 5 if i...

Page 29: ...ne will turn into rating capacity test mode the buzzer will make a di sound for 2 seconds continuously Also indoor fan will change to rating speed the frequency of compressor will be fixed as rating v...

Page 30: ...e caused by defrosting or anti cold wind function frequency of compressor will not be elevated one grade until these limit has been released 1 Indoor fan changes to turbo speed and anti cold wind func...

Page 31: ...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 mach...

Page 32: ...he setting temperature rises 1 be lower than 30 every one hour 2 hour later the rising stops and indoor fan is fixed as low speed 3 When heating the setting temperature descends 1 be lower than 30 eve...

Page 33: ...n Press the CLEAN AIR button to activate the function Press it again to stop the function During the time when Ionizer being controlled by remote controller Ionizer will be turned off automatically if...

Page 34: ...pacitors in PCB and relative circuit in outdoor unit even shut down the power supply electricity power still are kept in capacitors do not forget to discharge the electricity power in capacitor Electr...

Page 35: ...l error E3 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 P0 IGBT over strong current protection P1 O...

Page 36: ...tion of L N S 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 p...

Page 37: ...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 check if E6 display agai...

Page 38: ...of inverter compressor is it 0 668ohm 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 outd...

Page 39: ...tance value of each winding by using the multi meter 9 3 2 Outdoor Fan Motor Model YDK53 6N Measure the resistance value of each winding by using the multi meter Position Resistance Value Blue Red Blu...

Page 40: ...or 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 15 20 25 30 40 50 60 Resistance Value K 26 9 20 7 16...