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Panasonic CS-E7HKEW, Service Manual, Page: 27 / 94

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Panasonic CS-E7HKEW Service Manual Download Page 27

27

7.2.

CS-E15HKEW  CU-E15HKE

Summary of Contents for CS-E7HKEW

Page 1: ... ...

Page 2: ...ol For Heating Operation 58 14 Servicing Mode 59 14 1 Auto OFF ON Button 59 14 2 Select Remote Control Transmission Code 59 14 3 Remote Control Button 60 15 Troubleshooting Guide 61 15 1 Refrigeration Cycle System 61 15 2 Breakdown Self Diagnosis Function 63 15 3 Error Codes Table 64 16 Disassembly and Assembly Instructions 66 16 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor ...

Page 3: ...ne must not be connected to gas pipe water pipe earth of lightning rod and telephone Otherwise it may cause electric shock in case equipment breakdown or insulation breakdown 12 When connecting the piping do not allow air or any substances other than the specified refrigerant to enter the refrigeration cycle Otherwise this may lower the capacity cause abnormally high pressure in the refrigeration ...

Page 4: ...roved power plug with earth pin for the connection to the socket ii Power supply connection to a circuit breaker for the permanent connection Use an approved circuit breaker for the permanent connection It must be a double pole switch with a minimum 3 5 mm contact gap 8 Do not release refrigerant during piping work for installation servicing reinstallation and during repairing a refrigerant parts ...

Page 5: ...210 Me m3 min ft3 min Cooling 7 5 270 Heating 8 45 300 Hi m3 min ft3 min Cooling 10 2 360 Cooling 28 8 1020 Heating 10 7 380 Heating 28 8 1020 SHi m3 min ft3 min Cooling 10 6 370 Heating 11 1 390 Refrigeration Control Device Check Valve Capillary Tube Refrigeration Oil cm3 RB68A or Freol Alpha68M 320 Refrigerant R410A g oz 790 27 9 Dimension Height mm inch 280 11 1 32 540 21 9 32 Width mm inch 799...

Page 6: ...eat rpm 680 780 Lo Cool Heat rpm 780 850 Me Cool Heat rpm 1010 1085 Hi Cool Heat rpm 1240 1320 750 SHi Cool Heat rpm 1310 1390 Heat Exchanger Fin Material Aluminium Pre Coat Aluminium Fin Type Slit Fin Corrugated Fin Row x Stage x FPI 2 x 15 x 17 2 x 24 x 17 Size W x H x L mm 610 x 315 x 25 4 36 4 x 504 x 713 684 Air Filter Material Polypropelene Type One Touch Item Unit Power Source Phase Voltage...

Page 7: ...min ft3 min Cooling 7 8 280 Heating 8 8 310 Hi m3 min ft3 min Cooling 10 4 370 Cooling 29 8 1050 Heating 11 0 390 Heating 29 8 1050 SHi m3 min ft3 min Cooling 10 95 390 Heating 11 7 410 Refrigeration Control Device Check Valve Capillary Tube Refrigeration Oil cm3 RB68A or Freol Alpha68M 320 Refrigerant R410A g oz 965 34 1 Dimension Height mm inch 280 11 1 32 540 21 9 32 Width mm inch 799 31 15 32 ...

Page 8: ...0 940 Me Cool Heat rpm 1070 1170 Hi Cool Heat rpm 1310 1400 770 SHi Cool Heat rpm 1390 1490 Heat Exchanger Fin Material Aluminium Pre Coat Aluminium Fin Type Slit Fin Corrugated Fin Row x Stage x FPI 2 x 15 x 19 2 x 24 x 17 Size W x H x L mm 610 x 315 x 25 4 36 4 x 504 x 713 684 Air Filter Material Polypropelene Type One Touch Item Unit Power Source Phase Voltage Cycle ø Single V 230 Hz 50 Input P...

Page 9: ... min ft3 min Cooling 8 75 310 Heating 10 2 360 Hi m3 min ft3 min Cooling 11 2 400 Cooling 31 0 1090 Heating 11 7 410 Heating 31 0 1090 SHi m3 min ft3 min Cooling 11 7 410 Heating 12 1 430 Refrigeration Control Device Check Valve Capillary Tube Refrigeration Oil cm3 RB68A or Freol Alpha68M 320 Refrigerant R410A g oz 980 34 6 Dimension Height mm inch 280 11 1 32 540 21 9 32 Width mm inch 799 31 15 3...

Page 10: ...0 1150 Me Cool Heat rpm 1175 1325 Hi Cool Heat rpm 1430 1500 830 SHi Cool Heat rpm 1500 1550 Heat Exchanger Fin Material Aluminium Pre Coat Aluminium Fin Type Slit Fin Corrugated Fin Row x Stage x FPI 2 x 15 x 21 2 x 24 x 17 Size W x H x L mm 610 x 315 x 25 4 36 4 x 504 x 713 684 Air Filter Material Polypropelene Type One Touch Item Unit Power Source Phase Voltage Cycle ø Single V 230 Hz 50 Input ...

Page 11: ... 250 Heating 9 3 330 Me m3 min ft3 min Cooling 9 4 330 Heating 10 8 380 Hi m3 min ft3 min Cooling 11 7 410 Cooling 48 5 1710 Heating 12 1 430 Heating 46 8 1650 SHi m3 min ft3 min Cooling 12 18 430 Heating 12 2 430 Refrigeration Control Device Expansion Valve Refrigeration Oil cm3 RB68A or Freol Alpha68M 400 Refrigerant R410A g oz 1 06k 37 4 Dimension Height mm inch 280 11 1 32 750 29 17 32 Width m...

Page 12: ...230 Me Cool Heat rpm 1245 1390 Hi Cool Heat rpm 1500 1550 660 640 SHi Cool Heat rpm 1560 1570 Heat Exchanger Fin Material Aluminium Pre Coat Aluminium Fin Type Slit Fin Corrugated Fin Row x Stage x FPI 2 x 15 x 21 1 x 28 x 18 Size W x H x L mm 610 x 315 x 25 4 22 x 711 x 835 Air Filter Material Polypropelene Type One Touch Item Unit Power Source Phase Voltage Cycle ø Single V 230 Hz 50 Input Power...

Page 13: ...13 2 5 Outdoor Unit CU 2E15GBE ...

Page 14: ...14 2 6 Outdoor Unit 3E18EBE ...

Page 15: ...15 2 7 Outdoor Unit CU 3E23CBPG CU 4E27CBPG ...

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Page 19: ...nt R410A Long Installation Piping CS CU E7 9 12 15HK long piping up to 15 meters Easy to use remote control Quality Improvement Random auto restart after power failure for safety restart operation Gas leakage protection Prevent compressor reverse cycle Inner protector to protect Compressor Noise prevention during soft dry operation Operation Improvement Quiet mode to reduce the indoor unit operati...

Page 20: ...s air conditioning of up to two separate rooms for CU 2E15GBE CU 2E18CBPG A single outdoor unit enables air conditioning of up to three separate rooms for CU 3E18EBE CU 3E23CBPG A single outdoor unit enables air conditioning of up to four separate rooms for CU 4E27CBPG ...

Page 21: ...21 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control ...

Page 22: ...22 5 Dimensions 5 1 Indoor Unit ...

Page 23: ...23 5 2 Outdoor Unit 5 2 1 CU E7HKE CU E9HKE CU E12HKE 5 2 2 CU E15HKE ...

Page 24: ...12HKE If piping length is over common length additional refrigerant should be added as shown in the table Model Piping size Rated Length m Common Length m Max Elevation m Min Piping Length m Max Piping Length m Additional Refrigerant g m Gas Liquid E7HK E9HK E12HK 3 8 1 4 7 5 7 5 15 3 15 20 ...

Page 25: ...r common length additional refrigerant should be added as shown in the table Model Piping size Rated Length m Common Length m Max Elevation m Min Piping Length m Max Piping Length m Additional Refrigerant g m Gas Liquid E15HK 1 2 1 4 7 5 7 5 15 3 15 20 ...

Page 26: ...26 7 Block Diagram 7 1 CS E7HKEW CU E7HKE CS E9HKEW CU E9HKE CS E12HKEW CU E12HKE ...

Page 27: ...27 7 2 CS E15HKEW CU E15HKE ...

Page 28: ...28 8 Wiring Connection Diagram 8 1 Indoor Unit ...

Page 29: ...29 8 2 Outdoor Unit 8 2 1 CU E7HKE CU E9HKE CU E12HKE ...

Page 30: ...30 8 2 2 CU E15HKE ...

Page 31: ...31 9 Electronic Circuit Diagram 9 1 Indoor Unit ...

Page 32: ...32 9 2 Outdoor Unit 9 2 1 CU E7HKE CU E9HKE CU E12HKE ...

Page 33: ...33 9 2 2 CU E15HKE ...

Page 34: ...34 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...

Page 35: ...35 10 1 2 Power Printed Circuit Board 10 1 3 Indicator Printed Circuit Board 10 1 4 Patrol Printed Circuit Board ...

Page 36: ...36 10 2 Outdoor Unit 10 2 1 CU E7HKE CU E9HKE CU E12HKE ...

Page 37: ...37 10 2 2 CU E15HKE ...

Page 38: ... is built over the unit to prevent direct sunlight or rain be careful that heat radiation from 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 th...

Page 39: ... method is by putting measuring tape at position as shown in the diagram above The hole centre is obtained by measuring the distance namely 150 mm and 125 mm for left and right hole respectively Drill the piping hole at either the right or the left and the hole should be slightly slanted to the outdoor side 11 3 2 TO DRILL A HOLE IN THE WALL AND INSTALL A SLEEVE OF PIPING 1 Insert the piping sleev...

Page 40: ...40 3 For the embedded piping This can be used for left rear piping and left bottom piping also ...

Page 41: ...roprene sheathed 4 u 1 5 mm2 flexible cord type designation 245 IEC 57 or heavier cord Ensure the colour of wires of outdoor unit and the termi nal Nos are the same to the indoor s respectively Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage Secure the cable onto the control board ...

Page 42: ...n specified torque as stated in the table Connecting The Piping To Outdoor Unit 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 stated in the table CUTTING AND FLARING THE PIPING 1 Please cut ...

Page 43: ...ort of the 3 way valve 6 Tighten the service port caps of the 3 way valve at a torque of 18 NO m with a torque wrench 7 Remove the valve caps of both of the 2 way valve and 3 way valve Position both of the valves to OPEN using a hexagonal wrench 4 mm 8 Mount valve caps onto the 2 way valve and the 3 way valve Be sure to check for gas leakage 11 4 4 CONNECT THE CABLE TO THE OUTDOOR UNIT FOR DETAIL ...

Page 44: ...Knife switch Disconnecting means should have minimum 3 5 mm contact gap Secure the cable onto the control board with the holder clamper 11 4 5 PIPE 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 t...

Page 45: ...depending on the air conditioner 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 5qC Compressor is ON after waiting for 3 min...

Page 46: ... value of T1 will increase up to 10qC T2 will decrease by 3qC and T3 will decrease up to 8qC The Auto Operation Mode shifting will take place whenever operation mode changed from Cool 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 setting Heating Fan...

Page 47: ...ected by horizontal vane and horizontal airflow directed by vertical vanes 2 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 1 Automatic vertical airflow direction can be set using remote control the vane...

Page 48: ...ed 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 fan speed 4 When operation mode is changed quiet operation is shifted to quiet operation of the new 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 con...

Page 49: ...han remote control setting temperature for 20 minutes to achieve the setting temperature quickly 12 8 Timer Control 12 8 1 ON Timer Control ON timer can be set using remote control the unit with timer set will start operate earlier than the setting time This is to provide a comfortable environment when reaching the set ON time 60 minutes before the set time indoor at fan speed of Lo and outdoor fa...

Page 50: ...ol operation start condition When the unit operation is started with OFF ON button When the unit stops Patrol button is pressed Patrol individual operation will start During cooling only operation Patrol button is pressed b Patrol operation stop condition When any of the following condition is fulfilled When OFF ON button is pressed During any operation with Patrol Patrol button is pressed again W...

Page 51: ...t High 3 Confirm setting by pressing Timer Set button LCD returned to original display after 2 seconds 4 LCD returned to original display if remote control does not operate for 30 seconds b e ion Control When dirtiness level is 1 or 2 e ion operation starts If dirtiness level improves from level 2 to level 1 the unit carries out level change after 60 seconds When dirtiness level returns to level 0...

Page 52: ...ative ions to attract dust captured at the positively charged e ion filters B Control Condition a e ion operation start condition During unit running at any operation mode if e ion button is pressed combination operation operation mode e ion operation starts During unit is OFF if e ion button is pressed e ion individual operation starts b e ion operation stop condition When OFF ON button is presse...

Page 53: ...Purifying System If abnormal discharge is detected at filter short circuited due to water or dust adhesion etc the e ion indicator blinks immediately f Power failure During e ion individual operation if power failure occurs after power resumes e ion individual operation resumes immediately During combination operation if power failure occurs after power resumes combination operation resume immedia...

Page 54: ... at microcontroller supplied to filter during e ion stop due to PCB or filter s high voltage power supply damage Operations except e ion continue Both Timer indicator and e ion indicator blink Troubleshooting Method Press e ion button or OFF ON button to stop the operation Change main circuit board or filter s high voltage power supply When lo feedback voltage supplied to e ion Air Purifying syste...

Page 55: ... will be decreased 2 If the running current does not exceed X value for 5 seconds the frequency instructed will be increased 3 However if total outdoor unit running current exceeds Y value compressor will be stopped immediately for 3 minutes 4 The first 30 minutes of cooling operation A will be applied 13 1 4 IPM Power transistor Prevention Control A Overheating Prevention Control 1 When the IPM t...

Page 56: ...ithin 20 minutes the unit will Stop operation Timer LED blinks and F91 indicated 13 1 7 Compressor Tank Temperature Rise Protection Control a Control start conditions For 5 minutes the compressor continuously operates and outdoor total current is between 0 65A and 1 65A During Cooling and Soft Dry operations Indoor suction temperature indoor piping temperature is below 4qC Indoor temperature and o...

Page 57: ... after the indoor heat exchanger is higher than 13qC 3 At the same time indoor fan speed will be higher than during its normal operation 4 If indoor heat exchanger temperature is higher than 13qC for 5 minutes the fan speed will return to its normal operation 13 2 4 Dew Prevention Control 1 To prevent dew formation at indoor unit discharge area This control will be activated if Outdoor air tempera...

Page 58: ...e 13 3 2 Outdoor Air Temperature Control The Max current value is regulated when the outdoor air temperature rise above 16qC in order to avoid compressor overloading 13 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 60qC compressor will stop 13 3 4 Low Temper...

Page 59: ...tch Mode is in standby condition and press any button at remote control to transmit and store the desired transmission code to the EEPROM For transmission code selection explanation please refer to Select Remote Control Transmission Code 4 REMOTE CONTROL RECEIVING SOUND OFF ON MODE The Remote Control Receiving Sound OFF ON Mode will be activated if the Auto OFF ON button is pressed continuously fo...

Page 60: ...econds LCD returns to original display if remote control does not operate for 30 seconds 14 3 2 CLOCK BUTTON To change the remote control s time format Press for more than 5 seconds 14 3 3 RESET RC To clear and restore the remote control setting to factory default Press once to clear the memory 14 3 4 RESET AC To restore the unit s setting to factory default Press once to restore the unit s settin...

Page 61: ... 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 62: ...es after an operation is started Cooling Mode Heating Mode Low Pressure High Pressure Electric current during operating Low Pressure High Pressure Electric current during operating Condition of the air conditioner Insufficient refrigerant gas leakage Clogged capillary tube or Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient compression ...

Page 63: ...urn power on 2 Press the CHECK button on the remote controller contiguously 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 transmitted to the main unit The power LED lights...

Page 64: ...anger temperature sensor defective or disconnected H25 E Ion breakdown Indoor PCB E Ion PCB H27 Outdoor air temperature sensor abnormality Continue for 5 sec O Outdoor temperature sensor defective or disconnected H28 Outdoor heat exchanger temperature sensor abnormality Continue for 5 sec O Outdoor heat exchanger temperature sensor defective or disconnected H33 Indoor Outdoor wrong connection Indo...

Page 65: ...ure sensor abnormality Continue for 5 sec O Outdoor temperature sensor defective or disconnected H28 Outdoor heat exchanger temperature sensor abnormality Continue for 5 sec O Outdoor heat exchanger temperature sensor defective or disconnected H30 Discharge temperature sensor abnormality Continue for 5 sec Discharge temperature sensor H33 Indoor Outdoor wrong connection Indoor Outdoor supply volta...

Page 66: ... Removal Procedures 16 1 1 To remove front grille 16 1 2 To remove power electronic controller High voltages are generated in the electrical parts area by the capacitor Ensure that the capacitor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks ...

Page 67: ...67 16 1 3 To remove discharge grille ...

Page 68: ...68 16 1 4 To remove control board 16 1 5 To remove cross flow fan and indoor fan motor ...

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Page 70: ...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 71: ...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 72: ...72 17 Technical Data 17 1 Operation Characteristics 17 1 1 CS E7HKEW CU E7HKE ...

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Page 76: ...76 17 1 2 CS E9HKEW CU E9HKE ...

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Page 80: ...80 17 1 3 CS E12HKEW CU E12HKE ...

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Page 84: ...84 17 1 4 CS E15HKEW CU E15HKE ...

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Page 88: ...97 0 59 2 46 1 89 0 63 2 24 1 80 0 68 22 0qC 3 09 2 12 0 56 2 88 2 04 0 60 2 68 1 97 0 64 2 44 1 88 0 70 230V Outdoor Temp qC Indoor wet bulb temp 30 35 40 46 TC SHC IP TC SHC IP TC SHC IP TC SHC IP 17 0qC 3 47 2 63 0 87 3 24 2 52 0 94 3 02 2 43 1 00 2 74 2 30 1 08 19 0qC 3 50 0 95 19 5qC 3 81 2 76 0 89 3 56 2 65 0 95 3 31 2 55 1 02 3 01 2 43 1 10 22 0qC 4 15 2 86 0 90 3 88 2 75 0 97 3 61 2 65 1 0...

Page 89: ...8 Exploded View and Replacement Parts List 18 1 Indoor Unit 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 90: ... m 21 TERMINAL BOARD COMPLETE 1 CWA28C2305 m m m O 23 ELECTRONIC CONTROLLER MAIN 1 CWA73C2957 CWA73C3018 CWA73C3019 CWA73C3020 O 24 ELECTRONIC CONTROLLER POWER 1 CWA745131 m m m O 25 SENSOR COMPLETE 1 CWA50C2122 m m m O 26 CONTROL BOARD FRONT COVER 1 CWH131207 m m m 27 INDICATOR COMPLETE 1 CWE39C1168 m m m O 28 INDICATOR HOLDER 1 CWD932744 m m m 29 INDICATOR HOLDER 1 CWD932745 m m m 30 CONTROL BOA...

Page 91: ...91 18 2 Outdoor Unit 18 2 1 CU E7HKE CU E9HKE CU E12HKE 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 92: ... 1 CWB021301 m m O 17 3 WAYS VALVE GAS 1 CWB011374 m m O 19 REACTOR 1 G0C193J00003 m G0C193J00004 O 20 TERMINAL COVER 1 CWH171039A m m 21 NUT TERMINAL COVER 1 CWH7080300J m m 22 SOUND PROOF BOARD 1 CWH151172 m m 23A SOUND PROOF MATERIAL 1 CWG302443 CWG302292 m 23B SOUND PROOF MATERIAL 1 CWG302293 m 24 SENSOR COMPLETE 1 CWA50C2205 m m O 25 CONTROL BOARD COVER 1 CWH131264 m m 26 ELECTRONIC CONTROLLE...

Page 93: ...93 18 2 2 CU E15HKE 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 94: ...51050 23 TERMINAL COVER 1 CWH171039A 24 NUT TERMINAL COVER 1 CWH7080300J 25 SENSOR COMPLETE COMP TOP 1 CWA50C2185 27 V COIL COMPLETE 4 WAYS VALVE 1 CWA43C2168J 28 V COIL COMPLETE EXPAND VALVE 1 CWA43C2058J 29 SENSOR COMPLETE COMP DISC 1 CWA50C2180 30 SENSOR COMPLETE 1 CWA50C2181 31 REACTOR 1 CWA421069 32 CONTROL BOARD CASING SIDE 1 CWH102273 33 TERMINAL BOARD ASSY 1 CWA28K1110J 34 FUSE HOLDERS 1 K...

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