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Panasonic CS-E18HKEW, Service Manual, Page: 21 / 70

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Panasonic CS-E18HKEW Service Manual Download Page 21

21

8 Wiring Connection Diagram

8.1.

Indoor Unit

8.1.1.

CS-E18HKEW

Summary of Contents for CS-E18HKEW

Page 1: ... Location of Controls and Components 16 4 1 Indoor Unit 16 4 2 Outdoor Unit 16 4 3 Remote Control 16 5 Dimensions 17 5 1 Indoor Unit Remote Control 17 5 2 Outdoor Unit 18 6 Refrigeration Cycle Diagram 19 7 Block Diagram 20 7 1 CS E18HKEW CU E18HKE 20 8 Wiring Connection Diagram 21 8 1 Indoor Unit 21 8 2 Outdoor Unit 22 9 Electronic Circuit Diagram 23 9 1 Indoor Unit 23 9 2 Outdoor Unit 24 10 Print...

Page 2: ...s 47 13 2 Protection Control For Cooling Soft Dry Operation 48 13 3 Protection Control For Heating Operation 50 14 Servicing Mode 51 14 1 Auto OFF ON Button 51 14 2 Select Remote Control Transmission Code 51 14 3 Remote Control Button 52 15 Troubleshooting Guide 53 15 1 Refrigeration Cycle System 53 15 2 Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current 54...

Page 3: ...tion breakdown 7 Use the specified cable and connect tightly for indoor outdoor connection Connect tightly and clamp the cable so that no external force will be acted on the terminal If connection or fixing is not perfect it will cause heat up or fire at the connection 8 Wire routing must be properly arranged so that control board cover is fixed properly If control board cover is not fixed perfect...

Page 4: ... heated too high about 1100qF 600qC 7 Power supply connection to the conditioner Connect the power supply cord of the air conditioner to the mains using one of the following methods Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency In some countries permanent connection of this room air conditioner to the power supply is prohibite...

Page 5: ...2 80 452 Heating 13 82 488 Me m3 min ft3 min Cooling 13 95 493 Heating 15 29 540 Hi m3 min ft3 min Cooling 15 20 540 Cooling 40 0 1410 Heating 16 70 590 Heating 38 6 1360 SHi m3 min ft3 min Cooling 16 30 576 Heating 17 40 614 Refrigeration Control Device Expansion Valve Refrigeration Oil cm3 RB68A or Freol Alpha68M 400 Refrigerant R410A g oz 1 18k 41 7 Dimension Height mm inch 275 10 27 32 750 29 ...

Page 6: ...rpm 1080 1170 Lo Cool Heat rpm 1160 1240 Me Cool Heat rpm 1295 1410 Hi Cool Heat rpm 1430 1580 660 640 SHi Cool Heat rpm 1570 1660 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 34 x 16 Size W x H x L mm 810 x 315 x 25 4 36 4 x 714 x 803 831 Air Filter Material Polypropelene Type One Touch Item Unit Power Source Phase Vol...

Page 7: ...4 0 Cooling 5 20 1 9 6 4 1 44 0 35 2 11 6 4 Heating 6 80 1 4 7 3 1 80 0 31 2 51 8 0 2 8 5 0 Cooling 5 20 1 9 6 8 1 29 0 36 2 15 5 7 Heating 6 80 1 4 8 0 1 52 0 31 2 20 6 7 3 2 3 2 Cooling 5 20 1 9 6 4 1 45 0 35 2 12 6 4 Heating 6 80 1 4 7 5 1 75 0 31 2 49 7 7 3 2 4 0 Cooling 5 20 1 9 6 5 1 41 0 35 2 12 6 3 Heating 6 80 1 4 7 5 1 75 0 31 2 47 7 8 3 2 5 0 Cooling 5 20 1 9 6 9 1 25 0 35 2 15 5 5 Heat...

Page 8: ...n 2 8 2 8 3 2 Cooling 5 20 1 9 7 2 1 23 0 36 2 18 5 4 Heating 6 80 1 4 8 3 1 49 0 32 2 11 6 5 Outdoor unit Indoor unit combination Operation mode Capacity kW Power Input kW Current A Operation Class kW Rating mini max Rating mini max ...

Page 9: ... 2 8 4 0 Cooling 6 80 2 2 7 1 2 39 0 46 2 79 10 50 Heating 8 60 2 1 9 0 2 175 0 53 3 03 9 55 2 8 5 0 Cooling 6 80 2 5 7 2 2 23 0 46 2 80 9 85 Heating 8 60 3 2 9 0 2 15 0 53 3 01 9 50 3 2 3 2 Cooling 6 40 2 2 7 3 1 86 0 40 2 81 8 15 Heating 8 40 2 5 9 0 2 05 0 47 2 97 9 05 3 2 4 0 Cooling 6 80 2 5 7 3 2 22 0 46 2 81 9 65 Heating 8 60 3 2 9 0 2 09 0 53 2 97 9 20 3 2 5 0 Cooling 6 80 2 6 7 4 2 12 0 4...

Page 10: ...56 12 40 Two room Operation 2 2 2 2 Cooling 4 40 2 1 5 0 0 98 0 40 1 26 4 45 Heating 6 40 1 8 9 4 1 48 0 40 3 55 6 50 2 2 2 8 Cooling 5 00 2 1 6 1 1 23 0 40 1 88 5 50 Heating 7 10 2 1 9 4 1 70 0 42 3 51 7 55 2 2 3 2 Cooling 5 40 2 2 7 0 1 37 0 40 2 79 6 10 Heating 7 50 2 2 9 8 1 74 0 42 3 49 7 65 2 2 4 0 Cooling 6 20 2 2 7 1 1 82 0 40 2 79 8 00 Heating 8 30 2 4 9 8 2 06 0 44 3 44 9 05 2 2 5 0 Cool...

Page 11: ... 2 5 0 5 0 Cooling 8 00 2 9 8 4 2 43 0 49 2 83 10 70 Heating 9 40 4 1 10 5 2 17 0 70 3 12 9 55 2 8 2 8 2 8 Cooling 7 80 2 6 8 1 2 45 0 46 2 82 10 80 Heating 9 24 3 2 10 4 2 17 0 51 3 16 9 55 2 8 2 8 3 2 Cooling 8 00 2 7 8 2 2 51 0 49 2 81 11 00 Heating 9 40 3 2 10 4 2 19 0 51 3 15 9 65 2 8 2 8 4 0 Cooling 8 00 2 8 8 2 2 51 0 49 2 79 11 00 Heating 9 40 3 3 10 4 2 14 0 53 3 13 9 40 2 8 2 8 5 0 Cooli...

Page 12: ... 30 2 2 2 2 3 2 4 0 Cooling 8 00 2 8 8 9 2 08 0 50 2 84 9 15 Heating 9 40 4 0 10 5 2 08 0 68 3 15 9 15 2 2 2 2 3 2 5 0 Cooling 8 00 2 9 9 0 2 04 0 52 2 86 8 95 Heating 9 40 4 1 10 5 2 11 0 70 3 08 9 30 2 2 2 2 4 0 4 0 Cooling 8 00 2 9 9 0 2 06 0 52 2 85 9 05 Heating 9 40 4 1 10 5 2 05 0 70 3 11 9 05 2 2 2 2 4 0 5 0 Cooling 8 00 2 9 9 0 2 02 0 52 2 88 8 85 Heating 9 40 4 2 10 5 2 08 0 70 3 06 9 15 ...

Page 13: ...7 9 15 Heating 9 40 4 2 10 5 2 07 0 68 3 14 9 15 2 8 2 8 3 2 4 0 Cooling 8 00 2 9 9 0 2 05 0 52 2 88 9 05 Heating 9 40 4 2 10 5 2 04 0 70 3 08 8 95 2 8 2 8 4 0 4 0 Cooling 8 00 3 0 9 0 2 04 0 52 2 86 8 95 Heating 9 40 4 2 10 5 2 02 0 70 3 07 8 85 2 8 3 2 3 2 3 2 Cooling 8 00 2 9 9 1 2 03 0 52 2 86 8 95 Heating 9 40 4 1 10 6 2 09 0 70 3 10 9 20 2 8 3 2 3 2 4 0 Cooling 8 00 2 9 9 1 2 01 0 52 2 88 8 ...

Page 14: ...during soft dry operation Operation Improvement Quiet mode to reduce the indoor unit operating sound Powerful mode to reach the desired room temperature quickly 24 hour timer setting Serviceability Improvement Breakdown Self Diagnosis function Multi split Combination Possibility A single outdoor unit enables air conditioning of up to two separate rooms for CU 2E15GBE CU 2E18CBPG A single outdoor u...

Page 15: ...total nominal cooling capacity of indoor units that will be connected to outdoor unit must be within connectable capacity range of indoor unit as shown in the table above Example The indoor unit s combination below is possible to connect to CU 3E23CBPG Total nominal capacity of indoor units is between 5 0kW to 10 0kW a Two CS E9HKEW only Total nominal cooling capacity is 5 6kW b Three CS E12HKEW T...

Page 16: ...16 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control ...

Page 17: ...17 5 Dimensions 5 1 Indoor Unit Remote Control ...

Page 18: ...18 5 2 Outdoor Unit 5 2 1 CU E18HKE ...

Page 19: ...e Rated Length m Max Elevation m Min Piping Length m Max Piping Length m Additional Refrigerant g m Model Gas Liquid E18HKE 1 2 1 4 5 15 3 20 20 If piping length is over common length additional refrigerant should be added as shown in the table ...

Page 20: ...20 7 Block Diagram 7 1 CS E18HKEW CU E18HKE ...

Page 21: ...21 8 Wiring Connection Diagram 8 1 Indoor Unit 8 1 1 CS E18HKEW ...

Page 22: ...22 8 2 Outdoor Unit 8 2 1 CU E18HKE ...

Page 23: ...23 9 Electronic Circuit Diagram 9 1 Indoor Unit ...

Page 24: ...24 9 2 Outdoor Unit 9 2 1 CU E18HKE ...

Page 25: ...25 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...

Page 26: ...26 10 1 2 Power Printed Circuit Board 10 1 3 Indicator Printed Circuit Board ...

Page 27: ...27 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board 10 2 1 1 CU E18HKE ...

Page 28: ...28 10 2 2 Noise Filter Printed Circuit Board ...

Page 29: ...ul 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 10 m additional refrigerant should be added as shown in the table Exa...

Page 30: ...hole Another 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 ...

Page 31: ...31 3 For the embedded piping This can be used for left rear piping and left bottom piping also ...

Page 32: ...oroprene 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 terminal 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 33: ...t with fingers Further tighten the flare nut with torque wrench in 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...

Page 34: ... not move after approximately five minutes Note BE SURE TO FOLLOW 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 Nl m with a torque wrench 7 Remove the valve caps of both of the 2 way valve and 3 way valve Position both of t...

Page 35: ...avier cord 3 Secure the cable onto the control board with the holder clamper 4 Cable connection to the power supply through knife switch Disconnecting means Connect the approved polychloroprene sheathed power supply cable 3 u 2 5 mm2 type designation 245 IEC 57 or heavier cord to the terminal board and connect the other end of the cable to knife switch Disconnecting means Note Knife switch Disconn...

Page 36: ...are 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 Temperatue 1 5qC Compressor is ON after waiting for 3 ...

Page 37: ...lue of T1 will increase up to 10qC T2 will decreased by 3qC and T3 will decreased up to 8qC The Auto Operation Mode shifting will take place whenever operation mode changed from Cooling Soft Dry to Heating or vice versa 12 1 6 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...

Page 38: ... one fan speed only It starts when compressor starts operation and it stops 30 seconds after compressor stops operation 12 2 Airflow Direction 1 There are two types of airflow vertical airflow directed 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 an...

Page 39: ...can be set using remote control the vane swings left and right within the angles as stated below For heating mode operation the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below 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 as Figure 2 above 12 3 Quiet operation C...

Page 40: ... LED illuminates b Quiet operation stop condition 1 When one of the following conditions is satisfied quiet operation stops a Powerful button is pressed b Stop by OFF ON switch c Timer off activates d Quiet button is pressed again 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 operatio...

Page 41: ...ng 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 12 8 Indication Panel Note If POWER LED is blinking the possible operation of the unit are Hot Start during ...

Page 42: ...uring 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 When e ion button is pressed When OFF Timer activates c Patrol operation disable To disable the Patrol Operation during unit start default with OFF ON button press Patro...

Page 43: ... 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 continuously for 10 minutes or more e ion operation stops Dirtiness Level Shift For Auto Fan Speed the fan speed increased based on dirtiness level c Indoor Fan Control During any operation mode...

Page 44: ...lters 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 pressed to stop the operation When e ion button is pressed again When Patrol...

Page 45: ...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 46: ... 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 47: ...t 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 temperature rises to 110qC compressor operation will stop immediately 2 Compressor operation restarts after three minutes the temperature decreases to 95qC B DC Peak Curren...

Page 48: ... compressor will be stop occurs 4 times per 20 minutes timer LED will be blinking F97 is to be confirmed 13 2 Protection Control For Cooling Soft Dry Operation 13 2 1 Outdoor Air Temperature Control The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below This control will begin 1 minute after the compressor starts Compressor freque...

Page 49: ...e but no change in normal cooling mode The angle of horizontal louver will be changed as table below 13 2 4 Dew Prevention Control 2 1 To prevent dew formation at indoor unit discharge area 2 This control starts if all conditions continue for 20 minutes Operated with Cooling or Soft Dry Mode Indoor intake temperature is between 25qC and 29qC Outdoor air temperature is less than 30qC Quiet Lo fan s...

Page 50: ...bove 14qC 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 in below figures 13 3 4 Cold Draught Operation When indoor pipe temperature is low cold draught operation start where indoor fan speed will be reduced 13 3 5 Device Operation When outdoor pipe temperature a...

Page 51: ...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 52: ...t 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 setting 14 3 5 TIMER To change indoor unit indicator s LED intensity P...

Page 53: ... 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 54: ...es after an operation is started Cooling Mode Heating Mode Condition of the air conditoner Low Pressure High Pressure Electric current during operation Low Pressure High Pressure Electric current during operation 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 55: ...eration 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 transmitted to the main unit Th...

Page 56: ... 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 H30 Discharge temperature sensor abnormality H33 Indoor Outdoor wrong connection Indoor Outdoor supply voltage H38 Indoor O...

Page 57: ...oval Procedures 16 1 1 To remove front grille 16 1 2 To remove power electronic controller WARNING High Voltage 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 58: ...58 ...

Page 59: ...59 16 1 3 To remove discharge grille 16 1 4 To remove control board ...

Page 60: ...60 16 1 5 To remove cross flow fan and indoor fan motor ...

Page 61: ...61 ...

Page 62: ...62 17 Technical Data 17 1 Operation Characteristics 17 1 1 CS E18HKEW CU E18HKE ...

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Page 66: ...SHC IP 17 0qC 5 26 3 99 1 51 4 91 3 82 1 63 4 57 3 67 1 74 4 16 3 49 1 88 19 0qC 5 30 1 65 19 5qC 5 77 4 17 1 54 5 40 4 01 1 66 5 02 3 86 1 77 4 56 3 67 1 91 22 0qC 6 29 4 33 1 57 5 88 4 16 1 69 5 47 4 01 1 80 4 97 3 83 1 95 TC Total Cooling Capacity kW Indoor 27qC 19qC SHC Sensible Heat Capacity kW Outdoor 35qC 24qC IP Input Power kW ...

Page 67: ...8 Exploded View and Replacement Parts List 18 1 CS E18HKEW 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 68: ...K COVER CHASSIS 1 CWD932162B 20 CONTROL BOARD CASING 1 CWH102334 21 TERMINAL BOARD COMPLETE 1 CWA28C2305 O 23 ELECTRONIC CONTROLLER MAIN 1 CWA73C3106 O 24 INDICATOR COMPLETE 1 CWE39C1174 O 25 INDICATOR HOLDER 1 CWD932817 26 INDICATOR HOLDER 1 CWD932818 27 SENSOR COMPLETE 1 CWA50C2122 O 28 CONTROL BOARD TOP COVER 1 CWH131209 29 CONTROL BOARD FRONT COVER 1 CWH131210 30 REMOTE CONTROL COMPLETE 1 CWA7...

Page 69: ...69 18 2 CU E18HKE 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 70: ...BOARD 1 CWH151050 23 TERMINAL COVER 1 CWH171039A 24 NUT TERMINAL COVER 1 CWH7080300J 25 SENSOR COMPLETE COMP TOP 1 CWA50C2185 26 HOLDER SENSOR 1 CWH32074 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 BOAR...

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