Panasonic CS-E12NKDW Service Manual Download Page 79

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16.4.5 H16 (Outdoor Current Transformer Open Circuit)

Malfunction Decision Conditions

A current transformer (CT) is detected by checking the compressor running frequency (

≥

rated frequency) and

CT detected input current (less than 0.65A) for continuously 20 seconds.

Malfunction Caused

defective

Outdoor PCB defective

Compressor defective (low compression)

Troubleshooting

Summary of Contents for CS-E12NKDW

Page 1: ...ION OF LOW TEMPERATURE In order to avoid frostbite be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit This service information is designed for experienced repair technicians only and is not designed for use by the general public It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a ...

Page 2: ...to Restart Control 54 12 10 Indication Panel 54 12 11 nanoe G Operation 55 12 12 Mild Dry Cooling Operation 57 12 13 ECONAVI and AUTO COMFORT Operation 58 13 Operation Control For Multi Split Connection 62 13 1 Cooling operation 62 13 2 Soft Dry Operation 62 13 3 Heating Operation 62 13 4 Automatic Operation 63 13 5 Indoor Fan Motor Operation 63 13 6 Powerful Mode Operation 63 13 7 Auto restart co...

Page 3: ...ly recommended to install with Earth Leakage Circuit Breaker ELCB or Residual Current 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...

Page 4: ...nd aluminium fin It may cause injury 5 Select an installation location which is easy for maintenance 6 Pb free solder has a higher melting 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 heat...

Page 5: ...Cooling Outdoor Noise H L Power Level dB 60 60 61 61 kW 0 75 2 80 4 00 0 75 2 80 4 00 0 85 3 40 5 00 0 85 3 40 5 00 BTU h 2560 9550 13600 2560 9550 13600 2900 11600 17100 2900 11600 17100 Capacity Kcal h 650 2410 3440 650 2410 3440 730 2920 4300 730 2920 4300 Running Current A 3 1 3 0 3 6 3 4 Input Power W 230 635 1 02k 230 635 1 02k 240 740 1 31k 240 740 1 31k W W 3 26 4 41 3 92 3 26 4 41 3 92 3 ...

Page 6: ... 3 400 Hi Heat m 3 min ft 3 min 11 4 400 11 9 420 Cool m 3 min ft 3 min 11 6 410 11 7 410 Indoor Airflow SHi Heat m 3 min ft 3 min 12 0 424 12 1 427 Cool m 3 min ft 3 min 32 4 1145 33 9 1195 29 4 1040 29 8 1050 Outdoor Airflow Hi Heat m 3 min ft 3 min 32 4 1145 33 9 1195 29 4 1040 29 8 1050 Control Device Check Valve Capillary Tube Check Valve Capillary Tube Refrigerant Oil cm 3 FV50S 320 FV50S 32...

Page 7: ...Dry Bulb Wet Bulb Maximum 32 23 32 23 Cooling Minimum 16 11 16 11 Maximum 30 30 Indoor Operation Range Heating Minimum 16 16 Maximum 43 26 43 26 Cooling Minimum 16 11 16 11 Maximum 24 18 24 18 Outdoor Operation Range Heating Minimum 5 6 5 6 1 Cooling capacities are based on indoor temperature of 27 C Dry Bulb 80 6 F Dry Bulb 19 0 C Wet Bulb 66 2 F Wet Bulb and outdoor air temperature of 35 C Dry B...

Page 8: ...ing Outdoor Noise H L Power Level dB 63 63 64 64 kW 0 85 4 40 6 70 0 85 4 40 6 70 0 85 5 30 6 80 0 85 5 30 6 80 BTU h 2900 15000 22800 2900 15000 22800 2900 18100 23200 2900 18100 23200 Capacity Kcal h 730 3780 5760 730 3780 5760 730 4560 5850 730 4560 5850 Running Current A 5 3 5 1 6 8 6 6 Input Power W 245 1 09k 1 93k 245 1 09k 1 93k 255 1 44k 1 94k 255 1 44k 1 94k W W 3 47 4 04 3 47 3 47 4 04 3...

Page 9: ... 12 5 440 Hi Heat m 3 min ft 3 min 12 8 450 13 4 475 Cool m 3 min ft 3 min 13 1 463 13 3 470 Indoor Airflow SHi Heat m 3 min ft 3 min 13 3 470 13 6 480 Cool m 3 min ft 3 min 30 6 1080 31 0 1095 31 0 1095 31 4 1110 Outdoor Airflow Hi Heat m 3 min ft 3 min 30 6 1080 31 0 1095 31 0 1095 31 4 1110 Control Device Check Valve Capillary Tube Check Valve Capillary Tube Refrigerant Oil cm 3 FV50S 320 FV50S...

Page 10: ...ulb Dry Bulb Wet Bulb Maximum 32 23 32 23 Cooling Minimum 16 11 16 11 Maximum 30 30 Indoor Operation Range Heating Minimum 16 16 Maximum 43 26 43 26 Cooling Minimum 16 11 16 11 Maximum 24 18 24 18 Outdoor Operation Range Heating Minimum 5 6 5 6 1 Cooling capacities are based on indoor temperature of 27 C Dry Bulb 80 6 F Dry Bulb 19 0 C Wet Bulb 66 2 F Wet Bulb and outdoor air temperature of 35 C D...

Page 11: ... dB A 47 47 Cooling Outdoor Noise H L Power Level dB 61 61 kW 0 98 5 80 8 00 0 98 5 80 8 00 BTU h 3340 19800 27300 3340 19800 27300 Capacity Kcal h 840 4990 6880 840 4990 6880 Running Current A 7 2 6 9 Input Power W 340 1 54k 2 60k 340 1 54k 2 60k W W 2 88 3 77 3 08 2 88 3 77 3 08 BTU hW 9 82 12 86 10 50 9 82 12 86 10 50 COP Kcal hW 2 47 3 24 2 65 2 47 3 24 2 65 Power Factor 97 97 dB A 44 37 34 44...

Page 12: ...Me Heat m 3 min ft 3 min 16 0 565 Cool m 3 min ft 3 min 16 3 575 Hi Heat m 3 min ft 3 min 17 9 630 Cool m 3 min ft 3 min 18 1 639 Indoor Airflow SHi Heat m 3 min ft 3 min 18 5 653 Cool m 3 min ft 3 min 39 2 1385 Outdoor Airflow Hi Heat m 3 min ft 3 min 37 9 1340 Control Device Expansion Valve Refrigerant Oil cm 3 FV50S 450 Refrigeration Cycle Refrigerant Type g oz R410A 1 22k 43 1 Height I D O D m...

Page 13: ...ing Minimum 16 Maximum 43 26 Cooling Minimum 16 11 Maximum 24 18 Outdoor Operation Range Heating Minimum 5 6 1 Cooling capacities are based on indoor temperature of 27 C Dry Bulb 80 6 F Dry Bulb 19 0 C Wet Bulb 66 2 F Wet Bulb and 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 ...

Page 14: ...14 Multi Split Combination Possibility o A single outdoor unit enables air conditioning of up to two separate rooms for U 2E15GBE U 2E18CBPG ...

Page 15: ...15 Outdoor Unit U 2E15GBE Outdoor Unit U 2E18CBPG ...

Page 16: ...16 Outdoor Unit U 3E18JBE ...

Page 17: ...17 Outdoor Unit U 4E23JBE ...

Page 18: ...18 ...

Page 19: ... 0 75 1 75HP and 20 meters 2 0 2 25HP during single split connection only Easy to use remote control Quality Improvement o Random auto restart after power 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 op...

Page 20: ...20 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control ...

Page 21: ...21 5 Dimensions 5 1 Indoor Unit 5 1 1 CS E7NK CS E9NK CS E12NK CS E15NK ...

Page 22: ...22 5 1 2 CS E18NK ...

Page 23: ...23 5 2 Outdoor Unit 5 2 1 CU E7NKD CU E9NKD CU E12NKD CU E15NKD 5 2 2 CU E18NKD ...

Page 24: ...24 6 Refrigeration Cycle Diagram 6 1 CU E7NKD CU E9NKD CU E12NKD CU E15NKD ...

Page 25: ...25 6 2 CU E18NKD ...

Page 26: ...26 7 Block Diagram 7 1 CU E7NKD CU E9NKD CU E12NKD CU E15NKD ...

Page 27: ...27 7 2 CU E18NKD ...

Page 28: ...28 8 Wiring Connection Diagram 8 1 Indoor Unit 8 1 1 CS E7NKDW CS E9NKDW CS E12NKDW CS E15NKDW ...

Page 29: ...29 8 1 2 CS E18NKDW ...

Page 30: ...30 8 2 Outdoor Unit 8 2 1 CU E7NKD CU E9NKD CU E12NKD CU E15NKD ...

Page 31: ...31 8 2 2 CU E18NKD ...

Page 32: ...32 9 Electronic Circuit Diagram 9 1 Indoor Unit 9 1 1 CS E7NKDW CS E9NKDW CS E12NKDW CS E15NKDW ...

Page 33: ...33 9 1 2 CS E18NKDW ...

Page 34: ...34 9 2 Outdoor Unit 9 2 1 CU E7NKD CU E9NKD CU E12NKD CU E15NKD ...

Page 35: ...35 9 2 2 CU E18NKD ...

Page 36: ...36 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...

Page 37: ...37 10 1 2 Indicator and Receiver Printed Circuit Board 10 1 3 High Voltage Power Supply Printed Circuit Board 10 1 4 Comparator Printed Circuit Board ...

Page 38: ...38 10 1 5 Human Activity Sensor Printed Circuit Board ...

Page 39: ...39 10 2 Outdoor Unit 10 2 1 CU E7NKD CU E9NKD CU E12NKD CU E15NKD ...

Page 40: ...40 10 2 2 CU E18NKD ...

Page 41: ... the condenser is not obstructed There should not be any animal or plant which could be affected by hot air discharged Keep the spaces indicated by arrows from wall ceiling fence or other obstacles Do not place any obstacles which may cause a short circuit of the discharged air If piping length is over the piping length for additional gas additional refrigerant should be added as shown in the tabl...

Page 42: ...s 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 as shown in the diagram a...

Page 43: ...43 11 2 3 1 For the right rear piping 11 2 3 2 For the right and right bottom piping 11 2 3 3 For the embedded piping This can be used for left rear piping and bottom piping also ...

Page 44: ...rd 3 Bind all the indoor and outdoor connection cable with tape and route the connection cable via the escapement 4 Remove the tapes and connect the connection cable between indoor unit and outdoor unit according to the diagram below o Secure the connecting cable onto the control board with the holder o Ensure the colour of wires of outdoor unit and the terminal Nos are the same to the indoor s re...

Page 45: ...pipe cutter and then remove the burrs 2 Remove the burrs by using reamer If burrs are not removed gas leakage may be caused Turn the piping end down to avoid the metal powder entering the pipe 3 Please make flare after inserting the flare nut onto the copper pipes ...

Page 46: ...t with fingers Further tighten the flare nut with torque wrench in specified torque as stated in the table 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 flare nut locate at valve onto the copper pipe Align center of piping to valves and then tighten with torque wrench to the specified torque as stat...

Page 47: ... OPEN using a hexagonal wrench 4 mm 8 Mount valve caps onto the 2 way valve and the 3 way valve o Be sure to check for gas leakage If gauge needle does not move from 0 cmHg 0 MPa to 76 cmHg 0 1 MPa in the step e above take the following measure If the leak stops when the piping connections are tightened further continue working from step e If the leak does not stop when the connections are retight...

Page 48: ...s Disconnecting means should have minimum 3 0 mm contact gap Earth wire shall be Yellow Green Y 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 co...

Page 49: ... settings and the operation environment The final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit 12 1 2 Cooling Operation 12 1 2 1 Thermostat control Compressor is OFF when Intake Air Temperature Internal Setting Temperature 1 5 C continue for 3 minutes Compressor is ON after waiting for 3 minutes if t...

Page 50: ...mperature the value of T1 will increase up to 10 C T2 will decrease by 3 C and T3 will decrease up to 8 C The Auto Operation Mode shifting will take place whenever operation mode changed from Cooling Soft Dry to Heating or vice versa 12 2 Indoor Fan Motor Operation A Basic Rotation Speed rpm i Manual Fan Speed Cooling Dry Fan motor s number of rotation is determined according to remote control set...

Page 51: ... by vertical vanes Control of airflow direction can be automatic angles of direction is determined by operation mode heat exchanger temperature and intake air temperature and manual angles of direction can be adjusted using remote control 12 4 1 Vertical Airflow Vane Angle E7 9 12 15NK Vane Angle E18NK Operation Mode Airflow Direction 1 2 3 4 5 1 2 3 4 5 A 10 5 B 43 8 30 Auto with Heat Exchanger T...

Page 52: ...mode operation the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below It does not swing during fan motor stop Operation Mode Vane Angle A 70 110 Heating with heat exchanger temperature B 90 Cooling and Soft Dry 70 110 2 Manual horizontal airflow direction can be set using remote control the angles of the vane are as stated below and the positions of the vane are a...

Page 53: ... satisfied quiet operation stops a POWERFUL QUIET button is pressed again b Stop by OFF ON switch c Timer off activates d AUTO COMFORT button is pressed e ECONAVI button is pressed f Mild Dry Cooling button is pressed 2 When quiet operation is stopped operation is shifted to normal operation with previous setting 3 When fan speed is changed quiet operation is shifted to quiet operation of the new ...

Page 54: ...t 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 seconds to be selected randomly after power supply resumes 2 This type of control is not applicable during ON OFF Timer setting 3 This control can be omitted by open the circuit of JP1 at indoor unit printed circuit board 12 1...

Page 55: ...essed 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 individual operation only Auto Air Swing is allowed Even if Air Swing button is pr...

Page 56: ... supplies power to the nanoe G system When abnormal discharge occurs for 24 times continuously nanoe G indicator blinks o Troubleshooting method Press nanoe G button or OFF ON button to stop the operation and check the nanoe G connector at PCB After that press nanoe G button again to confirm the nanoe G indicator do not blinks The 24 timer counter will be clear after 10 minutes of normal operation...

Page 57: ...ling indicators turns ON at remote control display Mild dry cooling operation is unavailable when the unit is operating Auto mode Soft Dry mode Patrol individual operation or e ion individual operation Mild dry cooling operation is cancelled when the unit turned OFF Mild Dry Cooling button is pressed again or when the operation mode changed from Cooling to other mode ECONAVI Powerful Quiet and Mil...

Page 58: ... Sensor power ON and end after 30 seconds b Control content Judge ECONAVI and AUTO COMFORT Sensor power level every 100ms c Abnormal Judgment condition When ECONAVI and AUTO COMFORT Sensor has continues for 25 seconds Hi level 2 Circuit Abnormal Fix Output Lo a Abnormal judgment start condition After ECONAVI and AUTO COMFORT Sensor unit power ON and after pressed 70 seconds b Control content Judge...

Page 59: ...nt During ECONAVI and AUTO COMFORT operation the internal setting temperature and fan speed are adjusted in order to provide comfort and energy saving ECONAVI Start condition Press ECONAVI button ECONAVI Stop condition Press ECONAVI button again OFF Timer activates Press OFF ON button to turn off the air conditioner Press AUTO OFF ON button to turn off the air conditioner Press POWERFUL QUIET butt...

Page 60: ...re OFF ECONAVI and AUTO COMFORT operation will not be ON automatically When unit is turn on by ON Timer and ECONAVI and AUTO COMFORT operation is OFF during previous operation before OFF ECONAVI and AUTO COMFORT operation will not be ON automatically Other Information ECONAVI and AUTO COMFORT Powerful Quiet and Mild Dry Cooling cannot be operated at the same time ECONAVI and AUTO COMFORT sensor in...

Page 61: ...ring ECONAVI AUTO COMFORT mode ON when check signal is received if 1 or 2 is detected ECONAVI AUTO COMFORT LED start blinking ECONAVI AUTO COMFORT sensor operation stops but the unit operates as normal and ECONAVI AUTO COMFORT sensor abnormal code is memorized the 4 times counter is ignored The blinking of ECONAVI AUTO COMFORT LED can be cancelled by pressing ECONAVI AUTO COMFORT button again Sens...

Page 62: ...etting temperature Capability supply OFF point 13 3 Heating Operation 13 3 1 Thermostat control Capability supply to indoor unit is OFF Expansion valve closed when Intake Air Temperature Internal setting temperature 1 0 C During this condition the indoor fan is stopped if compressor is ON Capability resume supply to indoor unit after waiting for 3 minutes if the Intake Air Temperature Internal set...

Page 63: ...n remote control setting temperature the powerful operation continue until user cancel the Powerful operation by pressing powerful button again 13 7 Auto restart control When the power supply is cut off during the operation of air conditioner the compressor will re operate between three to four minutes 10 patterns to be selected randomly after power resume During multi split connection Indoor unit...

Page 64: ... 6 93 15 06 7 59 15 06 11 81 14 75 Cooling Soft Dry B 3 33 15 06 4 20 15 06 6 42 15 06 7 23 15 06 8 9 14 75 Heating 4 46 15 06 5 57 15 06 8 10 15 06 8 62 15 06 10 07 14 75 The first 30 minutes of cooling operation A will be applied 14 1 3 IPM Power transistor Prevention Control Overheating Prevention Control o When the IPM temperature rises to 120 C compressor operation will stop immediately o Com...

Page 65: ...or suction temperature indoor piping temperature is below 4 C o During Heating operations Indoor piping temperature indoor suction is under 5 C Control contents o Compressor stops and restart after 3 minutes o If the conditions above happen 2 times within 20 minutes the unit will Stop operation Timer LED blinks and F91 indicated 14 1 6 Low Frequency Protection Control 1 When the compressor operate...

Page 66: ...oor heat exchanger is higher than 5 C At the same time indoor fan speed will be higher than during its normal operation If indoor heat exchanger temperature is higher than 5 C for 5 minutes the fan speed will return to its normal operation 14 2 4 Freeze Prevention Control 2 Control start conditions o During Cooling operation and soft dry operation During thermo OFF condition indoor intake temperat...

Page 67: ...or Air Temperature Control The Max current value is regulated when the outdoor air temperature rise above 16 C E7 15NK and 14 C E18NK in order to avoid compressor overloading 14 3 3 Overload Protection Control The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown below If the heat exchanger temperature exceeds 60 C compressor will stop 14 3 4 L...

Page 68: ...ion 3 REMOTE CONTROL NUMBER SWITCH MODE The Remote Control Number Switch Mode will be activated if the Auto OFF ON button is pressed continuously for more than 11 seconds 3 beep sounds will occur at 11th seconds to identify the Remote Control Number Switch Mode is in standby condition and press AC RESET button and then press any button at remote control to transmit and store the desired transmissi...

Page 69: ...emote Control Receiving Sound OFF ON Mode is restarted 15 2 Remote Control Button 15 2 1 SET BUTTON To check remote control transmission code and store the transmission code to EEPROM o Press SET button continuously for 10 seconds by using pointer o Press TIMER SET button until a beep sound is heard as confirmation of transmission code changed 15 2 2 RESET RC To clear and restore the remote contro...

Page 70: ...nd 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 Normal Pressure and Outlet Air Temperature Standard Gas pressure Mpa kg cm 2 G Outlet air temperature C Cooling Mode 0 9 1 2 9 12 12 16 Heating Mode 2 3 2 9 23 29 36 45 Condition Indoor fan speed High Outdoor temperature 3...

Page 71: ...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 72: ... Display 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 w...

Page 73: ...73 16 3 Error Code Table ...

Page 74: ...74 ...

Page 75: ...transmission is checked whether it is normal Malfunction Caused Faulty indoor unit PCB Faulty outdoor unit PCB Indoor unit outdoor unit signal transmission error due to wrong wiring Indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units Indoor unit outdoor unit signal transmission error due to disturbed power supply w...

Page 76: ...are interconnected Malfunction Caused Wrong models interconnected Wrong indoor unit or outdoor unit PCBs mounted Indoor unit or outdoor unit PCBs defective Indoor outdoor unit signal transmission error due to wrong wiring Indoor outdoor unit signal transmission error due to breaking of wire 3 in the connection wires between the indoor and outdoor units Troubleshooting ...

Page 77: ...ction Decision Conditions During startup and operation of cooling and heating the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 78: ...n Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 79: ...ions A current transformer CT is detected by checking the compressor running frequency rated frequency and CT detected input current less than 0 65A for continuously 20 seconds Malfunction Caused CT defective Outdoor PCB defective Compressor defective low compression Troubleshooting ...

Page 80: ...etermine abnormal fan motor feedback of rotation 2550rpm or 50rpm Malfunction Caused Operation stops due to short circuit inside the fan motor winding Operation stops due to breaking of wire inside the fan motor Operation stops due to breaking of fan motor lead wires Operation stops due to Hall IC malfunction Operation error due to faulty indoor unit PCB Troubleshooting ...

Page 81: ... Decision Conditions During startup and operation of cooling and heating the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 82: ...m Abnormal Malfunction Decision Conditions During standby of cooling and heating operation e ion breakdown occurs and air conditioner stops operation Malfunction Caused Faulty indoor main PCB Faulty indoor e ion power module Troubleshooting ...

Page 83: ...ction Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 84: ...ction Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 85: ...tion Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 86: ...nction Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor heat exchanger temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 87: ...alfunction Decision Conditions The supply power is detected for its requirement by the indoor outdoor transmission Malfunction Caused Wrong models interconnected Wrong indoor unit and outdoor unit PCBs used Indoor unit or outdoor unit PCB defective Troubleshooting ...

Page 88: ...ction Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor heat sink temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 89: ...Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor gas pipe temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 90: ...ction Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor liquid pipe temperature sensor are used to determine sensor errors Malfunction Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 91: ...eration is used to determine abnormal fan motor Malfunction Caused Operation stops due to short circuit inside the fan motor winding Operation stops due to breaking of wire inside the fan motor Operation stops due to breaking of fan motor lead wires Operation stops due to Hall IC malfunction Operation error due to faulty outdoor unit PCB Troubleshooting ...

Page 92: ...ature detected by the indoor pipe temperature sensor is above 60 C Malfunction Caused Air short circuit at indoor unit Clogged indoor unit air filter Dust accumulation on the indoor unit heat exchanger 2 3 way valve closed Faulty indoor unit fan motor Excessive refrigerant Clogged expansion valve or strainer Faulty indoor pipe temperature sensor Faulty indoor unit PCB Troubleshooting ...

Page 93: ...l takes place when indoor pipe temperature is lower than 2 C Malfunction Caused Air short circuit at indoor unit Clogged indoor unit air filter Dust accumulation on the indoor unit heat exchanger 2 3 way valve closed Faulty indoor unit fan motor Refrigerant shortage refrigerant leakage Clogged expansion valve or strainer Faulty indoor pipe temperature sensor Faulty indoor unit PCB Troubleshooting ...

Page 94: ...onditions When heating operation when indoor pipe temperature is below 10 C When cooling operation when indoor pipe temperature is above 45 C Malfunction Caused Connector in poor contact Faulty sensor Faulty outdoor unit PCB 4 way valve defective Troubleshooting ...

Page 95: ...rature and indoor pipe temperature is above 10 C or indoor pipe temperature is below 1 0 C Remark When the indoor standby unit is freezing the outdoor unit transfers F17 error code to the corresponding indoor unit and H39 to other indoor unit s Malfunction Caused Wrong wiring connection Faulty sensor Faulty expansion valve Troubleshooting ...

Page 96: ...peration of cooling and heating when Power Factor Correction PFC protection circuitry at the outdoor unit main PCB senses abnormal high DC voltage level Malfunction Caused DC voltage peak due to power supply surge DC voltage peak due to compressor windings not uniform Faulty outdoor PCB Troubleshooting ...

Page 97: ...king the CT detected input current value and the compressor running frequency During startup and operating of cooling and heating input current 8 78 256 A Hz x compressor running frequency 0 25 Gas shortage detection 2 A gas shortage is detected by checking the difference between indoor pipe temperature and indoor intake air temperature during cooling and heating Malfunction Caused Faulty indoor i...

Page 98: ...ion Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit Malfunction Caused Compressor terminal disconnect Faulty Outdoor PCB Faulty compressor Troubleshooting ...

Page 99: ...ure data 61 C is detected by the outdoor pipe temperature sensor Malfunction Caused Air short circuit at indoor unit Dust accumulation on the indoor unit heat exchanger 2 3 way valve closed Faulty outdoor unit fan motor Excessive refrigerant Clogged expansion valve or strainer Faulty outdoor pipe temperature sensor Faulty outdoor unit PCB Troubleshooting ...

Page 100: ...ted o Heat Sink Overheating During operation of cooling and heating when heat sink temperature data 90 C is detected by the heat sink temperature sensor Malfunction Caused IPM overheats due to short circuit of hot discharge air flow IPM 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 M...

Page 101: ...ling and heating when compressor tank temperature data 112 C is detected by the compressor tank temperature sensor Malfunction Caused Faulty compressor tank temperature sensor 2 3 way valve closed Refrigerant shortage refrigerant leakage Faulty outdoor unit PCB Faulty compressor Troubleshooting ...

Page 102: ...ion of cooling and heating when an input over current X value in Total Running Current Control is detected by checking the input current value being detected by current transformer CT with the compressor running Malfunction Caused Excessive refrigerant Faulty outdoor unit PCB Troubleshooting ...

Page 103: ...ubleshooting Checking the power transistor Never touch any live parts for at least 10 minutes after turning off the circuit breaker If unavoidable necessary to touch a live part make sure the power transistor s supply voltage is below 50V using the tester For the UVW make measurement at the Faston terminal on the board of the relay connector Tester s negative terminal Power transistor UVW Power tr...

Page 104: ...citor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks 17 1 CS E7NK CS E9NK CS E12NK CS E15NK 17 1 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor Removal Procedures 17 1 1 1 To remove front grille Figure 1 17 1 1 2 To remove electronic controller Figure 2 ...

Page 105: ...105 Figure 3 Figure 4 17 1 1 3 To remove discharge grille Figure 5 ...

Page 106: ...106 17 1 1 4 To remove control board Figure 6 17 1 1 5 To remove cross flow fan and indoor fan motor Figure 7 Figure 8 ...

Page 107: ...107 Figure 9 Figure 10 ...

Page 108: ...1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor Removal Procedures 17 2 1 1 To remove front grille Figure 11 17 2 1 2 To remove horizontal vane Figure 12 17 2 1 3 To remove electronic controller Figure 13 ...

Page 109: ...109 Figure 14 Figure 15 17 2 1 4 To remove discharge grille Figure 16 ...

Page 110: ...110 17 2 1 5 To remove control board Figure 17 17 2 1 6 To remove cross flow fan and indoor fan motor Figure 18 Figure 19 ...

Page 111: ...111 Figure 20 Figure 21 ...

Page 112: ...ling electronic controller be careful of electrostatic discharge 1 Remove the 3 screws of the Top Panel Fig 1 2 Remove the 6 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 113: ...ove the 10 screws of the Front Panel Fig 2 3 Remove the Top Cover of the Electronic Controller Fig 3 4 Remove the Control Board Fig 4 5 Remove the 8 screws of the Electronic Controller Fig 5 Caution When handling electronic controller be careful of electrostatic discharge ...

Page 114: ... 39 41 43 Outdoor Air Temperature C Outlet Air Temperature C 220 230 1 700 1 900 2 100 2 300 2 500 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C Cooling Capacity kW 1 100 1 600 2 100 2 600 3 100 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C Current A 0 790 0 890 0 990 1 090 1 190 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 ...

Page 115: ...Piping Length m Cooling Capacity kW 1 070 1 080 1 090 1 100 1 110 1 120 1 130 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Gas Side Piping Pressure MPa 18 400 18 500 18 600 18 700 18 800 18 900 19 000 19 100 19 200 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air Temperature C 220 230 2 150 2 200 2 250 2 300 2 350 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Current A ...

Page 116: ...Temperature C Outlet Air Temperature C 220 230 1 800 2 000 2 200 2 400 2 600 2 800 3 000 3 200 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Heating Capacity kW 2 500 2 700 2 900 3 100 3 300 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Current A 2 000 2 200 2 400 2 600 2 800 3 000 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Gas Side Piping Pressure MPa ...

Page 117: ...10 11 12 13 14 15 Piping Length m Heating Capacity kW 2 600 2 620 2 640 2 660 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Gas Side Piping Pressure MPa 31 900 32 000 32 100 32 200 32 300 32 400 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air Temperature C 220 230 2 900 2 950 3 000 3 050 3 100 3 150 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Current A ...

Page 118: ...et Air Temperature C 220 230 2 100 2 300 2 500 2 700 2 900 3 100 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C Cooling Capacity kW 1 300 1 800 2 300 2 800 3 300 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C Current A 0 790 0 840 0 890 0 940 0 990 1 040 1 090 1 140 1 190 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 4...

Page 119: ... 14 15 Piping Length m Cooling Capacity kW 1 070 1 080 1 090 1 100 1 110 1 120 1 130 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Gas Side Piping Pressure MPa 17 100 17 200 17 300 17 400 17 500 17 600 17 700 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air Temperature C 220 230 2 550 2 600 2 650 2 700 2 750 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Current A ...

Page 120: ...perature C Outlet Air Temperature C 220 230 2 200 2 400 2 600 2 800 3 000 3 200 3 400 3 600 3 800 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Heating Capacity kW 2 900 3 100 3 300 3 500 3 700 3 900 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Current A 1 800 2 000 2 200 2 400 2 600 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Gas Side Piping Pressure MPa ...

Page 121: ... 9 10 11 12 13 14 15 Piping Length m Heating Capacity kW 2 340 2 360 2 380 2 400 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Gas Side Piping Pressure MPa 34 400 34 500 34 600 34 700 34 800 34 900 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air Temperature C 220 230 3 300 3 400 3 500 3 600 3 700 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Current A ...

Page 122: ...Outlet Air Temperature C 220 230 3 000 3 200 3 400 3 600 3 800 4 000 4 200 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C Cooling Capacity kW 2 100 2 600 3 100 3 600 4 100 4 600 5 100 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C Current A 0 680 0 780 0 880 0 980 1 080 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 ...

Page 123: ... 14 15 Piping Length m Cooling Capacity kW 0 920 0 930 0 940 0 950 0 960 0 970 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Gas Side Piping Pressure MPa 14 900 15 000 15 100 15 200 15 300 15 400 15 500 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air Temperature C 220 230 4 050 4 100 4 150 4 200 4 250 4 300 4 350 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Current A ...

Page 124: ...Temperature C Outlet Air Temperature C 220 230 2 800 3 300 3 800 4 300 4 800 5 300 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Heating Capacity kW 4 300 4 500 4 700 4 900 5 100 5 300 5 500 5 700 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Current A 1 900 2 100 2 300 2 500 2 700 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Gas Side Piping Pressure MPa ...

Page 125: ...12 13 14 15 Piping Length m Heating Capacity kW 2 420 2 440 2 460 2 480 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Gas Side Piping Pressure MPa 35 100 35 200 35 300 35 400 35 500 35 600 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air Temperature C 220 230 4 950 5 000 5 050 5 100 5 150 5 200 5 250 5 300 5 350 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Current A ...

Page 126: ... C Outlet Air Temperature C 220 230 3 600 3 800 4 000 4 200 4 400 4 600 4 800 5 000 5 200 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C Cooling Capacity kW 2 900 3 900 4 900 5 900 6 900 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C Current A 0 660 0 760 0 860 0 960 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Out...

Page 127: ... 13 14 15 Piping Length m Cooling Capacity kW 0 890 0 900 0 910 0 920 0 930 0 940 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Gas Side Piping Pressure MPa 14 900 15 000 15 100 15 200 15 300 15 400 15 500 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air Temperature C 220 230 5 650 5 700 5 750 5 800 5 850 5 900 5 950 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Current A ...

Page 128: ...Temperature C Outlet Air Temperature C 220 230 3 400 3 900 4 400 4 900 5 400 5 900 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Heating Capacity kW 5 600 5 800 6 000 6 200 6 400 6 600 6 800 7 000 7 200 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Current A 2 200 2 400 2 600 2 800 3 000 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Gas Side Piping Pressure M...

Page 129: ...13 14 15 Piping Length m Heating Capacity kW 2 740 2 760 2 780 2 800 2 820 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Gas Side Piping Pressure MPa 38 400 38 500 38 600 38 700 38 800 38 900 39 000 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air Temperature C 220 230 6 450 6 500 6 550 6 600 6 650 6 700 6 750 6 800 6 850 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Current A ...

Page 130: ... Air Temperature C Outlet Air Temperature C 220 230 4 200 4 700 5 200 5 700 6 200 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C Cooling Capacity kW 3 100 4 100 5 100 6 100 7 100 8 100 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C Current A 0 860 0 910 0 960 1 010 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdo...

Page 131: ...9 20 Piping Length m Cooling Capacity kW 0 900 0 910 0 920 0 930 0 940 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Gas Side Piping Pressure MPa 15 200 15 300 15 400 15 500 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Outlet Air Temperature C 220 230 6 500 6 600 6 700 6 800 6 900 7 000 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Current A ...

Page 132: ...perature C Outlet Air Temperature C 220 230 4 100 4 600 5 100 5 600 6 100 6 600 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Heating Capacity kW 5 700 5 900 6 100 6 300 6 500 6 700 6 900 7 100 7 300 7 500 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Current A 2 200 2 400 2 600 2 800 3 000 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C Gas Side Piping Pressur...

Page 133: ... 17 18 19 20 Piping Length m Heating Capacity kW 2 770 2 780 2 790 2 800 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Gas Side Piping Pressure MPa 36 600 36 700 36 800 36 900 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Outlet Air Temperature C 220 230 6 850 6 950 7 050 7 150 7 250 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Current A ...

Page 134: ...0 50 2 55 1 89 0 54 2 37 1 82 0 58 2 15 1 73 0 63 22 0 C 2 97 2 04 0 51 2 77 1 96 0 55 2 58 1 89 0 59 2 35 1 81 0 64 CU E12NKD Outdoor Temp C 220 230V 30 35 40 46 Indoor wet bulb temp TC SHC IP TC SHC IP TC SHC IP TC SHC IP 17 0 C 3 47 2 63 0 82 3 24 2 52 0 89 3 02 2 43 0 95 2 74 2 3 1 02 19 0 C 3 50 0 90 19 5 C 3 81 2 76 0 84 3 56 2 65 0 90 3 31 2 55 0 97 3 01 2 43 1 04 22 0 C 4 15 2 86 0 86 3 88...

Page 135: ... 96 3 76 1 35 4 64 3 61 1 45 4 31 3 47 1 55 3 92 3 29 1 67 19 0 C 5 00 1 47 19 5 C 5 45 3 94 1 37 5 09 3 78 1 48 4 74 3 64 1 58 4 31 3 47 1 70 22 0 C 5 94 4 08 1 40 5 55 3 93 1 50 5 16 3 79 1 61 4 69 3 61 1 73 TC Total Cooling Capacity kW SHC Sensible Heat Capacity kW IP Input Power kW Indoor 27 C 19 C Outdoor 35 C 24 C ...

Page 136: ...acement Parts List 19 1 Indoor Unit 19 1 1 CS E7NKDW CS E9NKDW CS E12NKDW CS E15NKDW 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 137: ...ONIC CONTROLLER COMPARATOR 1 CWA746769 O 21 LEAD WIRE PCB ECO 1 CWA67C9786 22 CONTROL BOARD CASING FOR PCB ECO 1 CWD933427 23 CONTROL BOARD TOP COVER 1 CWH131467 24 INDICATOR HOLDER 1 CWD933406 25 CONTROL BOARD FRONT COVER CO 1 CWH13C1247 26 DISCHARGE GRILLE COMPLETE 1 CWE20C3236 27 BACK COVER CHASSIS 1 CWD933233 28 FULCRUM 1 CWH621131 29 VERTICAL VANE 8 CWE241374 30 CONNECTING BAR 2 CWE261251 33 ...

Page 138: ...CK ABSORBER L 1 CWG713386 52 SHOCK ABSORBER R 1 CWG713387 53 C C CASE 1 CWG567358 CWG567359 CWG567360 CWG567361 NOTE All parts are supplied from PHAAM Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock ...

Page 139: ...139 19 1 2 CS E18NKDW 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 140: ...67C9935 22 CONTROL BOARD CASING FOR PCB ECO 1 CWD933455 23 CONTROL BOARD TOP COVER 1 CWH131467 24 INDICATOR HOLDER 1 CWD933406 25 CONTROL BOARD FRONT COVER CO 1 CWH13C1247 26 DISCHARGE GRILLE COMPLETE 1 CWE20C3242 27 BACK COVER CHASSIS 1 CWD933031 28 FULCRUM 2 CWH621138 29 VERTICAL VANE 11 CWE241374 30 CONNECTING BAR R 1 CWE261257 31 CONNECTING BAR L 1 CWE261258 32 AIR SWING MOTOR 1 CWA98K1018 O 3...

Page 141: ...CWF615103 50 BAG 1 CWG861498 51 SHOCK ABSORBER L 1 CWG713402 52 SHOCK ABSORBER R 1 CWG713403 53 C C CASE 1 CWG567974 NOTE All parts are supplied from PHAAM Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock ...

Page 142: ... 2 Outdoor Unit 19 2 1 CU E7NKD CU E9NKD CU E12NKD CU E15NKD 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 143: ...INAL COVER 1 CWH7080300J 22 SOUND PROOF BOARD 1 CWH151172 23A SOUND PROOF MATERIAL 1 CWG302443 CWG302293 24 SENSOR CO OUTDOOR COMPRESSOR TEMP 1 CWA50C2205 O 25 CONTROL BOARD COVER TOP 1 CWH131264 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C6570R CWA73C6571R CWA73C6572R CWA73C6573R O 27 TERMINAL BOARD ASSY 1 CWA28K1110J 28 CABINET SIDE PLATE R 1 CWE04C1116 29 SENSOR CO OUTDOOR AIR AND HEAT EXCHANGE TEMP ...

Page 144: ...144 19 2 2 CU E18NKD 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 145: ...L COMPLETE FOR EXP VALVE 1 CWA43C2257 29 SENSOR CO COMP DISCHARGE 2 CWA50C2656 O 30 SENSOR COMPLETE 1 CWA50C2517 O 31 REACTOR 1 G0C203J00003 33 TERMINAL BOARD ASSY 1 CWA28K1110J O 38 ELECTRONIC CONTROLLER MAIN 1 CWA73C6411R O 40 CONTROL BOARD COVER TOP PCB 1 CWH131333 41 CABINET SIDE PLATE L 1 CWE041520A 42 HANDLE 1 CWE161010 43 CABINET SIDE PLATE R 1 CWE041555A 45 CABINET FRONT PLATE ASSY 1 CWE06...

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