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Panasonic CS-NE12PKE Service Manual Download Page 77

77 

15.4.19  H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) 

Error code will not display (no TIMER LED blinking) but store in EEPROM 
 
Malfunction Decision Conditions 

•

  Freeze prevention control takes place (when indoor pipe temperature is lower than 2°C) 

 

Malfunction Caused 

•

  Clogged air filter of the indoor unit 

•

  Dust accumulation on the indoor unit heat exchanger 

•

  Air short circuit 

•

  Detection error due to faulty indoor pipe temperature sensor 

•

  Detection error due to faulty indoor unit PCB 

 

Troubleshooting 

 

When abnormality indication starts again

Is the air filter dirty?

●

Clean the air filter

Check the air filter

Is the indoor unit heat exchanger dirty?

●

Clean the indoor unit heat
exchanger

Is there any short circuit?

Check the air passage

YES

●

Provide sufficient air passage

NO

Does it conform to the sensor characteristic chart?

Check the indoor heat exchanger temperature
sensor

●

Replace the indoor unit PCB

●

Defect in indoor unit PCB

●

Replace the indoor unit PCB

Check the dust accumulation on the indoor unit heat
exchanger

NO

NO

YES

YES

YES

NO

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for CS-NE12PKE

Page 1: ...9 9 1 Indoor Unit 19 9 2 Outdoor Unit 20 10 Printed Circuit Board 21 10 1 Indoor Unit 21 PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public It does not contain w...

Page 2: ...tions 47 13 2 Protection Control For Cooling Soft Dry Operation 49 13 3 Protection Control For Heating Operation 50 14 Servicing Mode 52 14 1 Auto OFF ON Button 52 14 2 Remote Control Button 53 15 Troubleshooting Guide 54 15 1 Refrigeration Cycle System 54 15 2 Breakdown Self Diagnosis Function 56 15 3 Error Code Table 57 15 4 Self diagnosis Method 59 16 Disassembly and Assembly Instructions 88 16...

Page 3: ...t Device RCD Otherwise it may cause electrical shock and fire in case equipment breakdown or insulation breakdown 10 Do not use joint cable for indoor outdoor connection cable Use the specified indoor outdoor connection cable refer to installation instruction CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor outdoor connection Clamp the cable so that no external force will be act...

Page 4: ...lting point than standard solder typically the melting point is 50 F 70 F 30 C 40 C higher Please use a high temperature solder iron In case of the soldering iron with temperature control please set it to 700 20 F 370 10 C Pb free solder will tend to splash when heated too high about 1100 F 600 C 7 Power supply connection to the room air conditioner Use power supply cord 3 1 5 mm 2 type designatio...

Page 5: ... dB 55 dB A 46 Cooling Outdoor Noise H L QLo Power Level dB 61 kW 0 85 3 40 5 50 BTU h 2900 11600 18800 Capacity kcal h 730 2920 4730 Running Current A 3 30 Input Power W 165 700 1 33k W W 5 15 4 86 4 14 BTU hW 17 58 16 57 14 14 COP kcal hW 4 42 4 17 3 56 Pdesign kW 2 8 Tbivalent C 10 SCOP W W 4 5 Annual Consumption kWh 871 ErP Class A Power Factor 92 dB A 40 27 24 Indoor Noise H L QLo Power Level...

Page 6: ...15 Cool Fan m 3 min ft 3 min 10 83 380 Me Heat m 3 min ft 3 min 11 24 395 Cool Fan m 3 min ft 3 min 13 30 470 Hi Heat m 3 min ft 3 min 14 60 515 Cool Fan m 3 min ft 3 min 14 90 525 Indoor Airflow SHi Heat m 3 min ft 3 min 15 44 545 Cool Fan m 3 min ft 3 min 31 3 1105 Outdoor Airflow Hi Heat m 3 min ft 3 min 29 7 1050 Control Device Expansion Valve Refrigerant Oil cm 3 FV50S 450 Refrigeration Cycle...

Page 7: ...utdoor air temperature of 35 C Dry Bulb 95 F Dry Bulb 24 C Wet Bulb 75 2 F Wet Bulb 2 Heating capacities are based on indoor temperature of 20 C Dry Bulb 68 F Dry Bulb and outdoor air temperature of 7 C Dry Bulb 44 6 F Dry Bulb 6 C Wet Bulb 42 8 F Wet Bulb 3 Heating low temperature capacity Input Power and COP measured at 230 V indoor temperature 20 C outdoor 2 1 C 4 Heating extreme low temperatur...

Page 8: ...8 dB A 48 Cooling Outdoor Noise H L QLo Power Level dB 63 kW 0 85 4 00 6 70 BTU h 2900 13600 22800 Capacity kcal h 730 3440 5760 Running Current A 4 20 Input Power W 165 920 1 87k W W 5 15 4 35 3 58 BTU hW 17 58 14 78 12 19 COP kcal hW 4 42 3 74 3 08 Pdesign kW 3 6 Tbivalent C 10 SCOP W W 4 2 Annual Consumption kWh 1200 ErP Class A Power Factor 95 dB A 42 33 30 Indoor Noise H L QLo Power Level dB ...

Page 9: ...6 380 Cool Fan m 3 min ft 3 min 11 13 390 Me Heat m 3 min ft 3 min 12 76 450 Cool Fan m 3 min ft 3 min 13 60 480 Hi Heat m 3 min ft 3 min 14 70 520 Cool Fan m 3 min ft 3 min 14 70 520 Indoor Airflow SHi Heat m 3 min ft 3 min 15 75 555 Cool Fan m 3 min ft 3 min 32 9 1160 Outdoor Airflow Hi Heat m 3 min ft 3 min 32 1 1135 Control Device Expansion Valve Refrigerant Oil cm 3 FV50S 450 Refrigeration Cy...

Page 10: ... outdoor air temperature of 35 C Dry Bulb 95 F Dry Bulb 24 C Wet Bulb 75 2 F Wet Bulb 2 Heating capacities are based on indoor temperature of 20 C Dry Bulb 68 F Dry Bulb and outdoor air temperature of 7 C Dry Bulb 44 6 F Dry Bulb 6 C Wet Bulb 42 8 F Wet Bulb 3 Heating low temperature capacity Input Power and COP measured at 230 V indoor temperature 20 C outdoor 2 1 C 4 Heating extreme low temperat...

Page 11: ... failure for safety restart operation o Gas leakage protection o Prevent compressor reverse cycle o Inner protector to protect Compressor o Noise prevention during soft dry operation Operation Improvement o Quiet mode to reduce the indoor unit operating sound o Powerful mode to reach the desired room temperature quickly o 24 hour timer setting o 8 10 C HEAT operation is designed to provide heating...

Page 12: ...ATOR Do not touch during operation Vertical airflow direction louver Do not adjust by hand Green Blue Orange Green Green Blue Orange Orange TIMER 8 10 CHEAT NANOE G POWERFUL QUIET POWER DEICE Indicator 4 2 Outdoor Unit Air inlet rear Air outlet Air inlet side 4 3 Remote Control LCD display Off On nanoe G operation Airflow direction adjustment Temperature setting ECONAVI operation Operation mode 8 ...

Page 13: ...16 4 264 1 Unit mm 870 590 41 61 255 47 295 60 41 5 60 41 5 MODE POWERFUL QUIET TEMP OFF ON TIMER SET CANCEL ON OFF 1 2 3 AIR SWING FAN SPEED 8 10 C HEAT SET CHECK CLOC K RESET AC RC FAN FAN SPEED AIR SWING AUTO 8 10 C HEAT HEAT COOL DRY ECONAVI NANOE G Right piping hole Left piping hole 497 2 Indoor unit external dimensions line Installation plate 128 435 127 88 128 435 DIS TANCE TO PIPE HOLE CEN...

Page 14: ...de View Side View Anchor Bolt Pitch 330 x 540 Space necessary for installation 10cm 10cm 100cm Unit mm 3 way valve at Gas side Low Pressure 2 way valve at Liquid side High Pressure 22 124 53 4 330 622 167 97 69 23 61 32 540 160 824 68 5 37 299 ...

Page 15: ...PE TEMP SENSOR EVA INLET PIPE TEMP SENSOR TANK TEMP SENSOR INTAKE TEMP SENSOR PIPE TEMP SENSOR LIQUID SIDE 2 WAY VALVE 3 WAY VALVE GAS SIDE COOLING HEAT EXCHANGER EVAPORATOR HEAT EXCHANGER CONDENSER HEATING COMPRESSOR 4 WAY VALVE STRAINER MUFFLER EXPANSION VALVE MUFFLER ...

Page 16: ...PPLY 1 Ø 230V 50Hz SC TEMPERATURE FUSE M 1 FUSE 103 3 RY PWR RY PWR2 1 INDOOR UNIT OUTDOOR UNIT u FUSE 104 PTC 2 NOISE FILTER CT101 REACTOR NTC TH1 RY PWR RY AC PTC1 C103 L N IC19 MS 3 MS 3 FUSE 101 SC 4 WAYS VALVE u FUSE 301 TEMPERATURE FUSE ...

Page 17: ...TRONIC CONTROLLER RECEIVER 1 4 1 4 W W W W FUSE301 T3 15A L250V RY PWR RY PWR2 AC304 RED AC303 WHT G301 GRN COMMUNICATION CIRCUIT CN FM WHT 1 4 7 t 0 PIPING TEMP SENSOR 1 THERMISTOR t 0 SUCTION TEMP SENSOR THERMISTOR REMARKS B BLUE P PINK BR BROWN O ORANGE BL BLACK Y YELLOW W WHITE G GREEN R RED Y G YELLOW GREEN NOISE FILTER CIRCUIT FAN MOTOR B Y W BL R M RECTIFICATION CIRCUIT Y G Y G TEMP FUSE 10...

Page 18: ... P N SWITCHING POWER SUPPLY CIRCUIT FUSE 103 20A 250V FUSE 104 T3 15A L250V 3 RED 2 WHITE 1 BLACK RED WHITE BLACK RECTIFICATION CIRCUIT PFC CIRCUIT COMMUNICATION CIRCUIT RECTIFICATION CIRCUIT ELECTRONIC CONTROLLER 1 3 BLU BLU HT2 BLU RY HT2 ACN2 BLU 1 3 5 1 5 MS 3 W U V 10 16 14 CN HOT WHT CN STM WHT ELECTRO MAGNETIC COIL 4 WAY VALVE ELECTRO MAGNETIC COIL EXPANSION VALVE 1 3 1 6 M IC19 Q1 NOISE FI...

Page 19: ...N RCV CN RCV YELLOW CN DISP WHITE GND A GND A R214 ELECTRONIC CONTROLLER DISPLAY ELECTRONIC CONTROLLER RECEIVER R37 10k R85 R90 C52 C51 R82 C45 R54 270 1 2 3 4 1 2 3 4 1 2 3 4 5 5V R26 5V 12V 5V 5V R83 1k R84 1k UP DOWN LOUVER MOTOR OUTER CN STM1 WHITE BR 1 2 3 4 5 1 5 R O M Y P 9 1 2 7 6 5 4 3 8 16 15 10 11 12 13 14 R47 R46 IC03 12V 12V UP DOWN LOUVER MOTOR INNER CN STM4 BLUE BR 1 5 4 3 2 1 5 R O...

Page 20: ...U V W COMPRESSORTEMP SENSOR THERMISTOR 50K 3950 t 0 MS 3 P N SWITCHING POWER SUPPLY CIRCUIT FUSE 103 20A 250V FUSE 104 T3 15A L250V 3 RED 2 WHITE 1 BLACK RED WHITE BLACK COMMUNICATION CIRCUIT RECTIFICATION CIRCUIT ELECTRONIC CONTROLLER 1 3 BLU BLU HT2 BLU RY HT2 ACN2 BLU 1 3 5 MS 3 W U V 10 16 14 RECTIFICATION CIRCUIT PFC CIRCUIT 1 2 1 3 ELECTRO MAGNETIC COIL 4 WAY VALVE ELECTRO MAGNETIC COIL EXPA...

Page 21: ...or Unit 10 1 1 Main Printed Circuit Board AC303 CN STM1 CN STM4 CN RCV CN DISP CN CLN CN CNT CN TH CN FM JP1 Random Auto Restart enable disable 10 1 2 Indicator Printed Circuit Board LED301 LED302 LED304 LED305 LED307 LED306 CN DISP LED303 ...

Page 22: ...22 10 1 3 Receiver Printed Circuit Board CN RCV 10 1 4 High Voltage Power Supply Printed Circuit Board ...

Page 23: ...23 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board ...

Page 24: ...ngth for add gas m Gas Liquid HE9 NE9 XE9 QE9 WE9 AE9 1 0HP 9 52mm 3 8 6 35mm 1 4 5 5 3 15 20 7 5 HE12 NE12 XE12 QE12 WE12 AE12 5 7 0 2 5 1 3 5 P H 5 1 Example For HE9 If the unit is installed at 10 m distance the quantity of additional refrigerant should be 50 g 10 7 5 m 20 g m 50 g 11 1 3 Indoor Outdoor Unit Installation Diagram 50 mm or more 65 mm or more Left andright are identical Vinyl tape ...

Page 25: ...consider using anchor bolts o Always mount the installation plate horizontally by aligning the marking off line with the thread and using a level gauge 2 Drill the piping plate hole with ø70 mm hole core drill o Line according to the left and right side of the installation plate The meeting point of the extended line is the center of the hole Another method is by putting measuring tape at position...

Page 26: ...nit installation Cover for piping In case of the cover is cut keep the cover at the rear of chassis as shown in the illust ration for future reinstallation Left right and 2 bottom covers for piping How to keep the cover Guide surface Connection ca ble About 70 80 m m Connection ca ble Gas side piping Liquid side piping Drain hose Insert the connection cable To take out the unit push the marking at...

Page 27: ...able connection to the power supply through Isolating Devices Disconnecting means o Connect the approved polychloroprene sheathed power supply cord 3 1 5 mm2 type designation 245 IEC 57 or heavier cord to the terminal board and connect the other end of the cable to Isolating Devices Disconnecting means o Do not use joint power supply cord Replace the wire if the existing wire from concealed wiring...

Page 28: ...rd Control Board Earth wire longer than others AC wires for safety reason Holder Holder Indoor outdoor connection cable Isolating Devices Outdoor unit Power supply cord Note Isolating Devices Disconnecting means should have minimum 3 0 mm contact gap Ensure the colour of wires of outdoor unit and the terminal Nos are the same to the indoor s respectively Earth wire shall be Yellow Green Y G in col...

Page 29: ...E JOINING OF WIRES MAY CAUSE OVERHE ATING AND FIRE Do not joint wires OR OR OR Use complete wire without joining Use approved socket and plug with ea rth pin Wire connection in this area must follow to national wiring rules ...

Page 30: ...y onto the copper pipe In case of using long piping Connect the piping Align the center of piping and sufficiently tighten the flare nut with fingers Further tighten the flare nut with torque wrench in specified torque as stated in the table 11 3 2 2 Connecting the piping to Outdoor Decide piping length and then cut by using pipe cutter Remove burrs from cut edge Make flare after inserting the fla...

Page 31: ... that the needle in the gauge does not move after approximately five minutes Note BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE 5 Disconnect the charging hose from the vacuum pump and from the service port of the 3 way valve 6 Tighten the service port caps of the 3 way valve at a torque of 18 N m with a torque wrench 7 Remove the valve caps of both of the 2 way valve and...

Page 32: ...G in colour and longer than other AC wires for safety reason 11 3 5 Piping Insulation 1 Please carry out insulation at pipe connection portion as mentioned in Indoor Outdoor Unit Installation Diagram Please wrap the insulated piping end to prevent water from going inside the piping 2 If drain hose or connecting piping is in the room where dew may form please increase the insulation by using POLY E...

Page 33: ...ated continuously whenever the electrical power is supplied to the unit Remote Control Setting Temperature 16 C 30 C Setting Temperature Limit Checking Min 16 C Max 33 C Internal Setting Temperature Auto Operation Mode Shifting Powerful Mode Shifting Indoor Air Temperature Shifting Outdoor Air Temperature Shifting 12 1 2 Cooling Operation 12 1 2 1 Thermostat control Compressor is OFF when Intake A...

Page 34: ...t onwards o If indoor intake temperature remote control setting temperature 3 C if previous operate in DRY mode then continue in DRY mode otherwise COOL mode is decided o If 2 C indoor intake temperature remote control setting temperature 3 C maintain with previous mode o If indoor intake temperature remote control setting temperature 2 C HEAT mode is decided Heat Maintain current mode Cool Dry 6 ...

Page 35: ...50 rpm continue for 10 seconds then fan motor error counter increase fan motor is then stop and restart If the fan motor counter becomes 7 times then H19 fan motor error is detected Operation stops and cannot on back 12 3 Outdoor Fan Motor Operation Outdoor fan motor is operated with 15 fan speed number of rotations It starts when compressor starts operation and it stops 30 seconds after compresso...

Page 36: ... shift to close position 58 C 50 C Indoor Heat Exchanger Temperature 36 C 30 C C A Figure 1 B Figure 2 Upper vane 60 Lower vane 58 Reference point Closed Position Step 1 Step 2 Step 3 Step 4 Step 5 12 4 2 Horizontal Airflow The horizontal airflow direction louvers can be adjusted manually by hand 12 5 Quiet operation Cooling Mode Cooling area of Dry Mode A Purpose To provide quiet cooling operatio...

Page 37: ...th previous setting 3 When fan speed is changed quiet operation is shifted to quiet operation of the new fan speed 4 When operation mode is changed quiet operation is shifted to quiet operation of the new mode expect fan fan only mode 5 During quiet operation if timer on activates quiet operation maintains 6 After off when on back quiet operation is not memorised C Control contents a Fan Speed man...

Page 38: ...o C 30 min 25 min 35 min 5 12 8 2 OFF Timer Control OFF timer 1 and OFF timer 2 can be set using remote control the unit with timer set will stop operate at set time 12 9 Auto Restart Control 1 When the power supply is cut off during the operation of air conditioner the compressor will re operate within three to four minutes there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 secon...

Page 39: ...Auto Fan Speed and no Powerful operation is allowed Even if Fan Speed button is pressed no signal is sent to the unit and no change on remote control display Auto Fan Speed for nanoe G operation changes from SHi to Hi after 4 hours of operation Airflow direction control o During any operation mode combines with nanoe G operation airflow direction follows respective operation mode o During nanoe G ...

Page 40: ...tion to cancel the blinking o Abnormal discharge error Judgment method During nanoe G operation the nanoe G system has abnormal discharge due to short circuit caused by water or dust adhesion and so forth with Lo feedback voltage at microcontroller When abnormal discharge occurred every 30 minutes the unit supplies power to the nanoe G system When abnormal discharge occurs for 24 times continuousl...

Page 41: ...oor PCB or nanoe G high voltage power supply damage Operations except nanoe G continue Both Timer indicator and nanoe G indicator blink Troubleshooting method Press nanoe G button or OFF ON button to stop the operation Change nanoe G high voltage power supply or main PCB When Lo feedback voltage supplied to nanoe G system during nanoe G operation ON nanoe G indicator and Timer indicator stop blink...

Page 42: ...Sensor During ECONAVI operation the sunlight sensor detects sunlight intensity coming through windows and differentiates between sunny and cloudy or night to further optimize energy saving by adjusting the temperature Sunlight judgment is as following Sunlight intensity reset Judge sunlight intensity Judge ambient condition Temperature shift 12 12 1 1 Sunlight Intensity Reset The sunlight intensit...

Page 43: ...ss and release within 10s Security Level 1 Less sensitive to sunlight intensity Security Level 3 Default sensitivity level Security Level 5 More sensitive to sunlight intensity Default Battery insert Set to Level 3 Other than default Display last set data Transmit solar radiation level after 2 secs go back to normal mode Set to level 4 Press Timer Set to level 5 Set to level 1 Set to level 2 Remot...

Page 44: ... return to normal mode SET Transmit sunlight sensor check code and after 2 seconds return to normal mode Remote control normal mode Operation details o The sunlight sensor check mode will be operated for 5 minutes o During check mode the ON and OFF timer will be memorized but it operation be ignored o During check mode if the sunlight sensor check code is retransmitted the 5 minutes counter will b...

Page 45: ...ion error counter will increase by 1 time If the ECONAVI is OFF the 24 hours timer will be reset but the sunlight sensor disconnection error counter will not be reset Error Code judgment o When sunlight sensor disconnection error counter reached 15 times H70 occurred o No TIMER indicator or ECONAVI indicator blinks When error code happened the unit is able to operate without sunlight sensor ...

Page 46: ...TEMP down button at the remote control o 10 C Pressing TEMP up button at the remote control During the operation of this mode o The indoor fan speed will remain at Hi fan tap all the time included deice process o Powerful operation Quiet operation Econavi operation and Fan Speed selection are disabled o Cold draft prevention control is disabled Control condition Caution If the indoor temperature c...

Page 47: ... A 4 12 6 20 Cooling Soft Dry B 3 51 5 87 Cooling Soft Dry C 3 51 5 87 Heating 5 41 14 76 7 96 14 76 4 The first 30 minutes of cooling operation A will be applied 40 C 39 C Outdoor air temperature 39 C 38 C C A B 13 1 3 IPM Power Transistor Prevention Control A Overheating Prevention Control 1 When the IPM temperature rises to 100 C compressor operation will stop immediately 2 Compressor operation...

Page 48: ...1 15A During Cooling and Soft Dry operations Indoor suction temperature indoor piping temperature is below 4 C During Heating operations Indoor piping temperature indoor suction is under 5 C b Control contents Compressor stops and restart after 3 minutes If the conditions above happen 2 times within 20 minutes the unit will o Stop operation o Timer LED blinks and F91 indicated 13 1 6 Low Frequency...

Page 49: ...same time indoor fan speed will be higher than during its normal operation 4 If indoor heat exchanger temperature is higher than 5 C for 5 minutes the fan speed will return to its normal operation 13 2 4 Freeze Prevention Control 2 1 Control start conditions During Cooling operation and soft dry operation o During thermo OFF condition indoor intake temperature is less than 10 C or o Compressor sto...

Page 50: ...essor OFF Compressor ON The indoor unit fan stops temporarily and then starts to blow at minimum airflow for 30 seconds Compressor ON Compressor OFF The indoor unit fan stops for 90 seconds and then blows at minimum airflow for 20 seconds 13 3 Protection Control For Heating Operation 13 3 1 Intake Air Temperature Control Compressor will operate at limited freq if indoor intake air temperature is 3...

Page 51: ...tion Control When indoor pipe temperature is low cold draught operation starts where indoor fan speed will be reduced 13 3 6 Deice Operation When outdoor pipe temperature and outdoor air temperature is low deice operation start where indoor fan motor and outdoor fan motor stop and the operation LED deice indicator ON during this operation ...

Page 52: ...advance setting of air conditioner operation Auto Operation Test Run Operation Forced Cooling Operation Beep 5 sec Test Run Operation Forced Haeting Operation Beep x 2 Main unit always continue Test Run forced cooling operation 8 sec Remote Control Number Switch Mode Beep x 3 11 sec Remote Control Receiving Sound OFF ON Beep x 4 16 sec Auto OFF ON button pressed Press AC RESET at remote control Pr...

Page 53: ...mote Control Receiving Sound OFF ON Mode is restarted 14 2 Remote Control Button 14 2 1 SET BUTTON To check remote control transmission code and store the transmission code to EEPROM o Press Set button for more than 10 seconds by using pointer o Press TIMER SET button until a beep sound is heard as confirmation of transmission code changed 14 2 2 RESET RC To clear and restore the remote control se...

Page 54: ... problems before inspecting the refrigeration cycle Such problems include insufficient insulation problem with the power source malfunction of a compressor and a fan The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions the standard values for them are shown in the table on the right ...

Page 55: ...tion Low Pressure High Pressure Electric current during operation Insufficient refrigerant gas leakage Ô Ô Ô Ô Ô Ô Clogged capillary tube or strainer Ô Ô Ô Ò Ò Ò Short circuit in the indoor unit Ô Ô Ô Ò Ò Ò Heat radiation deficiency of the outdoor unit Ò Ò Ò Ô Ô Ô Inefficient compression Ò Ô Ô Ò Ô Ô Carry out the measurements of pressure electric current and temperature fifteen minutes after an op...

Page 56: ...y Memorized Error Protective Operation Status 1 Turn power on 2 Press the CHECK button on the remote controller continuously for 5 seconds 3 will be displayed on the remote controller display Note Display only for No transmitting signal no receiving sound and no Power LED blinking 4 Press the TIMER or button on the remote controller The code H00 no abnormality will be displayed and signal will be ...

Page 57: ...vice PCB H27 Outdoor air temperature sensor abnormality Continuous for 5s Outdoor air temperature sensor open or short circuit Outdoor air temperature sensor lead wire and connector H28 Outdoor heat exchanger temperature sensor 1 abnormality Continuous for 5s Outdoor heat exchanger temperature sensor 1 open or short circuit Outdoor heat exchanger temperature sensor 1 lead wire and connector H32 Ou...

Page 58: ...nnector Expansion valve lead wire and connector F90 Power factor correction PFC circuit protection 4 times happen within 10 minutes Power factor correction circuit abnormal Outdoor PCB faulty F91 Refrigeration cycle abnormality 2 times happen within 20 minutes Refrigeration cycle abnormal Insufficient refrigerant or valve close F93 Compressor abnormal revolution 4 times happen within 20 minutes Co...

Page 59: ...or and outdoor units Indoor unit outdoor unit signal transmission error due to disturbed power supply waveform Troubleshooting When abnormality indication starts again Is there any wiring error Correct the indoor outdoor units connection wires Check the indoor outdoor units connection wires Disconnect terminal 3 wire and measure Vdc between terminal 2 3 from the outdoor unit Is the Vdc fluctuate b...

Page 60: ... the indoor and outdoor units Troubleshooting When abnormality indication starts again Is there any wiring error YES Matched compatibility Correct the indoor outdoor unit connection wires Check the indoor and outdoor unit connection wires Check the spare part numbers of the indoor and outdoor unit PCBs and compare with their Part Lists Change for the specified indoor or outdoor unit PCB Replace th...

Page 61: ...in Check the indoor intake air temperature sensor Plug out connector from the indoor unit PCB Measure the resistance of the indoor intake air temperature sensor For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Is the measured resistance of the indoor intake air temperature sensor matches the value specified in its characterist...

Page 62: ...compressor temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor compressor temperature sensor For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Is the measured resistance of the outdoor compressor temperature sensor matches the value specified in its characteristic chart Check th...

Page 63: ...ssion Troubleshooting When abnormality indication starts again Check the functionality of current transformer CT Replace Compressor due to compressor low compression Is the CT open circuit Force heating operation and measure Running current Suction pressure Check for gas leaking source Repair or replace defected part s Replace the outdoor PCB For safety reason and to prevent component breakdown al...

Page 64: ...urn off power supply and rotate fan by hand Replace fan motor Does fan rotate smoothly Turn power supply on and operate fan Replace indoor PCB Replace fan motor For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Turn off power supply and disconnect fan motor connector then turn power on NO YES YES NO Does it rotate Stop fan moto...

Page 65: ...perature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor intake air temperature sensor Defect in outdoor intake air temperature sensor Replace the outdoor intake air temperature sensor Detect in outdoor unit PCB Replace the outdoor unit PCB For safety reason and to prevent component breakdown always switch off the power before remove and connect the compon...

Page 66: ...perature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor intake air temperature sensor Defect in outdoor intake air temperature sensor Replace the outdoor intake air temperature sensor Detect in outdoor unit PCB Replace the outdoor unit PCB For safety reason and to prevent component breakdown always switch off the power before remove and connect the compon...

Page 67: ... starts again Turn off the power and reconnect CN CLN connector Turn on the power and measure again the DC voltage between CN CLN channel 4 2 Is the voltage measured at 5Vdc Defect in indoor unit e ion power module Replace the indoor unit e ion power module Defect in indoor unit main PCB Replace the indoor unit main PCB Check the indoor unit main PCB CN CLN terminal 4 2 DC voltage Turn off the pow...

Page 68: ... the outdoor air temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor air temperature sensor Is the measured resistance of the outdoor airtemperature sensor matches the value specified in its characteristic chart Defect in outdoor air temperature sensor Replace the outdoor air temperature sensor Defect in outdoor unit PCB Replace the outdoor unit PC...

Page 69: ... sensor matches the value specified in its characteristic chart YES Whenabnormality indicationstarts again Check the outdoor heat exchanger temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor heat exchanger temperature sensor Defectin outdoor heat exchanger temperaturesensor Replace the outdoor heat exchanger temperaturesensor Defectin outdoor unit...

Page 70: ...utdoor unit PCB Measure the resistance of the outdoor discharge pipe temperature sensor For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Is the measured resistance of the outdoor heat exchanger temperature sensor matches the value specified in its characteristic chart Defect in outdoor discharge pipe Replace the outdoor discha...

Page 71: ...ve Troubleshooting When abnormality indication starts again Is indoor unit and outdoor unit model numbers matched NO Match the compatible model follow specification Check indoor and outdoor units model number Check the indoor and outdoor PCB part number and compare if they matched part list For safety reason and to prevent component breakdown always switch off the power before remove and connect t...

Page 72: ...or unit PCB Measure the resistance of the outdoor discharge pipe temperature sensor For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Is the measured resistance of the outdoor heat sink temperature sensor matches the value specified in its characteristic chart Defect in outdoor discharge pipe Replace the outdoor discharge pipe ...

Page 73: ...t PCB Measure the resistance of the outdoor discharge pipe temperature sensor For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Is the measured resistance of the outdoor gas pipe temperature sensor matches the value specified in its characteristic chart Defect in outdoor discharge pipe Replace the outdoor discharge pipe tempera...

Page 74: ...oor unit PCB Measure the resistance of the outdoor discharge pipe temperature sensor For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Is the measured resistance of the outdoor liquid pipe temperature sensor matches the value specified in its characteristic chart Defect in outdoor discharge pipe Replace the outdoor discharge pi...

Page 75: ...ly and rotate fan by hand Replace fan motor Does fan rotate smoothly Turn power supply on and operate fan Replace outdoor PCB Replace fan motor For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Turn off power supply and disconnect fan motor connector then turn power on NO YES YES NO Does it rotate Stop fan motor Check the rotat...

Page 76: ...or unit PCB Troubleshooting When abnormality indication starts again Is the air filter dirty Clean the air filter Check the indoor unit air filter Is the indoor unit heat exchanger dirty Clean the indoor unit heat exchanger Check the dust accumulation on the indoor unit heat exchanger Does it conform to the sensor characteristic chart Check the indoor pipe temperature sensor Replace the indoor pip...

Page 77: ...pipe temperature sensor Detection error due to faulty indoor unit PCB Troubleshooting When abnormality indication starts again Is the air filter dirty Clean the air filter Check the air filter Is the indoor unit heat exchanger dirty Clean the indoor unit heat exchanger Is there any short circuit Check the air passage YES Provide sufficient air passage NO Does it conform to the sensor characteristi...

Page 78: ...isconnected loose Hamess out of connector Check the continuity of the 4 way valve coil Disconnect the harness from the connector Resistance Measure DC voltage supply to CN HOT pin1 2 during heating operating For safety reason and to prevent component breakdown always switch off the power before remove and connect the component NO Is the voltage supply to 4 way valve 2 5 4 5Vdc NO Replace the indoo...

Page 79: ...y sensor Faulty expansion valve Troubleshooting YES YES NO When F17 indication happens Check the system wiring connection Is the wiring connection ok Perform Auto Wiring to correct the Replace the indoor intake air or indoor NO Replace the solenoid coil or expansion YES Check the indoor intake air and indoor pipe temperature sensors Does it conform to the sensor characteristic chart Check the expa...

Page 80: ...Correct the power supply Is the DC voltage between P and N terminal normal between 285 315Vdc Check the supply voltage Operate the system Verify PFC abnormality by measuring DC voltage between P and N terminal at the outdoor unit PCB Are the compressor s winding resistance U V V W W U uniform Check the compressor winding resistance Turn off the power supply and disconnect the harness U V and W Mea...

Page 81: ...d heating Malfunction Caused Refrigerant shortage refrigerant leakage Poor compression performance of compressor 2 3 way valve closed Detection error due to faulty indoor intake air or indoor pipe temperature sensors Troubleshooting 2 3 way valve opened Oil oozing out from the 2 3 way valve Replace the capillary tube or dryer When F91 indication happens For safety reason and to prevent component b...

Page 82: ...circuit Malfunction Caused Compressor terminal disconnect Outdoor PCB malfunction Troubleshooting Normal When F93 indication happens For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Turn off power supply Disconnect U V and W wires IPM defective Replace outdoor unit PCB NO YES Check with inverter checker Replace compressor ...

Page 83: ...sensor Outdoor pipe temperature rise due to defective outdoor unit PCB Troubleshooting Is outdoor fan motor operating When F95 indication happens For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Check the outdoor unit installation condition during cooling or soft dry operation Replace the outdoor fan motor NO YES Is there any ...

Page 84: ...M overheats due to defective of outdoor fan motor IPM overheats due to defective of internal circuitry of IPM IPM overheats due to defective IPM temperature sensor Multi Models Only o Compressor OL connector poor contact o Compressor OL faulty Troubleshooting Is outdoor fan motor operating When F96 indication happens For safety reason and to prevent component breakdown always switch off the power ...

Page 85: ...t component breakdown always switch off the power before remove and connect the component Check the compressor tank temperature sensor Open the 2 3 way valve YES NO Does it conform to the sensor characteristic chart Replace the compressor tank temperature sensor NO YES Check for gas leakage Oil oozing out from the 2 3way valve Repair the pipe flare or union nuts Reclaim and recharge refrigerant Re...

Page 86: ...c capacitor Over current due to excessive refrigerant Troubleshooting Turn off power supply Check the main circuit electrolytic capacitor When F98 indication happens For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Get restarted and measure the input current NO Input current 16 8A Replace the outdoor unit PCB NO YES Normal Che...

Page 87: ...ct the component Get restarted and measure the input current NO Input current 18 5A Replace the outdoor unit PCB NO YES Are the compressor s winding resistance U V V W or U W shorted Compressor defective due to winding shorted Replace compressor Outdoor electronic circuit defect due to power transistor short Replace the outdoor unit PCB YES Checking the power transistor Never touch any live parts ...

Page 88: ... the capacitor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks 16 1 Indoor Unit 16 1 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor Removal Procedures 16 1 1 1 To remove front grille Figure 1 16 1 1 2 To remove electronic controller Figure 2 ...

Page 89: ...89 Figure 3 Figure 4 16 1 1 3 To remove discharge grille Figure 5 ...

Page 90: ...90 16 1 1 4 To remove control board Figure 6 16 1 1 5 To remove cross flow fan and indoor fan motor Figure 7 ...

Page 91: ...91 Figure 8 Figure 9 ...

Page 92: ...92 Figure 10 ...

Page 93: ...ler be careful of electrostatic discharge 1 Remove the 5 screws of the Top Panel Fig 1 2 Remove the 8 screws of the Front Panel Fig 2 3 Remove the screw of the Terminal Board Cover 4 Remove the Top Cover of the Control Board by 4 hooks Fig 3 5 Remove the Control Board as follows Fig 4 Fig 5 Fig 6 ...

Page 94: ...9 0 3284 2729 315 4370 3395 485 4153 3094 490 4263 2434 577 4476 3487 526 3903 3196 678 3500 3044 870 27 22 0 3434 2232 326 4759 2603 400 4716 2589 488 4648 2124 572 4799 2683 508 4255 2940 682 3942 2436 875 15 7 2961 2590 275 2859 2544 291 3911 3362 541 4018 2523 555 4101 3420 539 3461 3135 678 3337 3080 868 23 18 4 2984 2106 306 2137 1256 293 4147 2310 539 4158 2042 576 4275 2625 529 3902 2314 6...

Page 95: ... forced cooling at 16 C Hi fan Compressor frequency Rated for cooling operation Voltage 230V 18 1 1 CS NE9PKE CU NE9PKE CS QE9PKE CU QE9PKE Current A Low Pressure Mpa Outdoor Air Temperature ºC Outdoor Air Temperature ºC Outlet Air ºC Outdoor Air Temperature ºC 2 00 2 20 2 40 2 60 2 80 3 00 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 0 900 1 000 1 100 1 200 1 300 1 400 16 18 20 22 24 26 28 30 32 ...

Page 96: ...ºC Outdoor Air Temperature ºC Outlet Air ºC Outdoor Air Temperature ºC 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 3 00 3 40 3 80 4 20 4 60 5 00 0 850 0 900 0 950 1 000 1 050 1 100 13 50 14 00 14 50 15 00 15 50 16 00 ...

Page 97: ...n Compressor frequency Rated for Heating operation Voltage 230V 18 2 1 CS NE9PKE CU NE9PKE CS QE9PKE CU QE9PKE Current A High Pressure Mpa Outdoor Air Temperature ºC Outdoor Air Temperature ºC Outlet Air ºC Outdoor Air Temperature ºC 1 50 2 00 2 50 3 00 3 50 4 00 15 10 5 0 5 10 1 400 1 600 1 800 2 000 2 200 2 400 15 10 5 0 5 10 20 50 24 50 28 50 32 50 36 50 40 50 15 10 5 0 5 10 ...

Page 98: ... A High Pressure Mpa Outdoor Air Temperature ºC Outdoor Air Temperature ºC Outlet Air ºC Outdoor Air Temperature ºC 15 10 5 0 5 10 15 10 5 0 5 10 15 10 5 0 5 10 2 00 2 50 3 00 3 50 4 00 4 50 1 700 1 900 2 100 2 300 2 500 2 700 20 00 24 00 28 00 32 00 36 00 40 00 ...

Page 99: ...iping Length m Capacity correction factor 0 94 0 95 0 96 0 97 0 98 0 99 1 00 1 01 1 02 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Range of additional refrigerant charge 18 3 1 2 Heating Capacity 0 90 0 95 1 00 1 05 1 10 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Range of additional refrigerant charge Piping Length m Capacity correction factor Note The graphs show the factor after added right amount of additio...

Page 100: ... 2 39 3 33 29 27 35 1 6 42 10 43 25 32 O I 44 I I 45 I I 46 I I 47 I I 48 I I 49 23 B B B 11 19 18 21 22 37 20 5 A A B A A A B B A CWH55025J CWH55051J 8 7 12 13 14 9 Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Page 101: ...50C2664 25 ELECTRONIC CONTROLLER MAIN 1 CWA73C7898 CWA73C7899 O 26 ELECTRONIC CONTROLLER HVU 1 N0GE1F000005 O 27 CONTROL BOARD CASING 1 CWH102456 28 CONTROL BOARD TOP COVER 1 CWH131531 29 CONTROL BOARD FRONT COVER CO 1 CWH13C1286 30 TERMINAL BOARD COMPLETE 1 CWA28C2364 31 INDICATOR COMPLETE 1 CWE39C1231 O 32 INDICATOR HOLDER 1 CWD933466 33 FRONT GRILLE COMPLETE 1 CWE11C5433 O 34 GRILLE DOOR COMPLE...

Page 102: ... QTY CS NE9PKE CS NE12PKE REMARK 51 SHOCK ABSORBER L 1 CWG713484 52 SHOCK ABSORBER R 1 CWG713485 53 C C CASE 1 CWG568509 Note All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock ...

Page 103: ...50C2664 25 ELECTRONIC CONTROLLER MAIN 1 CWA73C7898 CWA73C7899 O 26 ELECTRONIC CONTROLLER HVU 1 N0GE1F000005 O 27 CONTROL BOARD CASING 1 CWH102456 28 CONTROL BOARD TOP COVER 1 CWH131531 29 CONTROL BOARD FRONT COVER CO 1 CWH13C1286 30 TERMINAL BOARD COMPLETE 1 CWA28C2364 31 INDICATOR COMPLETE 1 CWE39C1231 O 32 INDICATOR HOLDER 1 CWD933466 33 FRONT GRILLE COMPLETE 1 CWE11C5434 O 34 GRILLE DOOR COMPLE...

Page 104: ... QTY CS QE9PKE CS QE12PKE REMARK 51 SHOCK ABSORBER L 1 CWG713484 52 SHOCK ABSORBER R 1 CWG713485 53 C C CASE 1 CWG568509 Note All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock ...

Page 105: ...42 26 35 27 2 42 41 15 3 8 7 5 6 23B 23A 4 11 33 28 34 19 1 10 12 39 49 48 51 14 38 56 55 54 52 53 36 23D 23C Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Page 106: ...3A SOUND PROOF MATERIAL 1 CWG302856 23B SOUND PROOF MATERIAL 1 CWG302855 23C SOUND PROOF MATERIAL 1 CWG302857 23D SOUND PROOF MATERIAL 1 CWG302858 24 SENSOR CO COMP TEMP 1 CWA50C2894 O 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C7964R CWA73C7965R O 27 TERMINAL BOARD ASSY 1 CWA28K1036J O 28 CABINET SIDE PLATE CO 1 CWE04C1482 29 SENSOR CO AIR AND PIPE TEMP 1 CWA50C2893 O 30 CABINET SIDE PLATE L 1 CWE04161...

Page 107: ...ETY REF NO PART NAME DESCRIPTION QTY CU NE9PKE CU NE12PKE REMARK 56 C C CASE 1 CWG566848 Note All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock ...

Page 108: ...OF MATERIAL 1 CWG302856 23B SOUND PROOF MATERIAL 1 CWG302855 23C SOUND PROOF MATERIAL 1 CWG302857 23D SOUND PROOF MATERIAL 1 CWG302858 24 SENSOR CO COMP TEMP 1 CWA50C2894 O 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C7964R CWA73C7965R O 27 TERMINAL BOARD ASSY 1 CWA28K1036J O 28 CABINET SIDE PLATE CO 1 CWE04C1482 29 SENSOR CO AIR AND PIPE TEMP 1 CWA50C2893 O 30 CABINET SIDE PLATE L 1 CWE041617A 31 CABINE...

Page 109: ... NAME DESCRIPTION QTY CU QE9PKE CU QE12PKE REMARK 56 C C CASE 1 CWG566848 Note All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock Printed in Malaysia SY0713 0 ...

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