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CAUTION

 

WARNING

 

WARNING

1. Safety Precautions 

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  Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing. 

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  Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the 

power plug and main circuit for the model installed. 

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  The caution items stated here must be followed because these important contents are related to safety. The 

meaning of each indication used is as below. Incorrect installation or servicing due to ignoring of the instruction 
will cause harm or damage, and the seriousness is classified by the following indications. 

 

 

This indication shows the possibility of causing death or serious injury. 

 

This indication shows the possibility of causing injury or damage to properties. 

 

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  The items to be followed are classified by the symbols: 

 

 

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  Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, 

care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for 
future reference. 

 

 

1.   Do not modify the machine, part, material during repairing service. 

2.   If wiring unit is supplied as repairing part, do not repair or connect the wire even only partial wire break. Exchange the whole wiring unit. 

3.   Do not wrench the fasten terminal. Pull it out or insert it straightly. 

4.   Engage dealer or specialist for installation and servicing. If installation of servicing done by the user is defective, it will cause water leakage, 
      electrical shock or fire. 

5.   Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electric shock or fire. 

6.   Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage, 
      fire or electrical shock. 

7.   Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly done,
      the set will drop and cause injury. 

8.   For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit and single 
      outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire. 

9.   This equipment is strongly recommended to be installed 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 for indoor / outdoor connection. Clamp the cable so that no external force 
      will be acted on the terminal. If connecting or fixing is not perfect, it will cause heat up or fire at the connection. 
11. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause 
      heat-up or fire at the connection point of terminal, fire or electrical shock. 

12. When install or relocate air conditioner, do not let any substance other than the specified refrigerant, eg. air etc. mix into refrigeration 
      cycle (piping). (Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc.). 

13. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise building, child may climb up to 
      outdoor unit and cross over the handrail and causing accident. 
14. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and 
      telephone. Otherwise, it may cause electrical shock in case equipment breakdown or insulation breakdown. 

15. Keep away from small children, the thin film may cling to nose and mouth and prevent breathing. 

16. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with 
      other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire. 

17. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare 
      may break and cause refrigerant gas leakage. 

18. For R410A models, when connecting the piping, do not use any existing (R22) pipes and flares nuts. Using such same may cause 
      abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. In case of using existing (R22) 
      pipes during installation of R410A models, must carry out pump down properly to collect back the refrigerant and oil before installation 
      new unit. 
      Thickness of copper pipes used with R410A must be more than 0.6mm. Never use copper pipes thinner than 0.6mm. 
      It is desirable that the amount of residual oil is less than 40 mg/10m. 

 

This symbol denotes item that is PROHIBITED from doing. 

Содержание CS-ME9PB4EA

Страница 1: ...ge 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 no...

Страница 2: ...THE INDOOR UNIT 40 11 8 INSTALLATION OF DECORATIVE PANEL 41 12 Operation and Control 43 12 1 Basic Function 43 12 2 Airflow Direction 45 12 3 Quiet operation Cooling Mode Cooling area of Soft Dry Mod...

Страница 3: ...rent 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 ind...

Страница 4: ...luminium 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...

Страница 5: ...12 3 50 3 24 Indoor Noise H L dB A 35 28 Power Level dB 48 Indoor Fan Type Backward Fan Material ABS GF10 Motor Type DC 8 poles Input Power W Output Power W 40 Speed QLo Cool rpm 350 Heat rpm 410 Lo C...

Страница 6: ...Heating Maximum C 30 Minimum C 16 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...

Страница 7: ...el dB 48 Indoor Fan Type Backward Fan Material ABS GF10 Motor Type DC 8 poles Input Power W Output Power W 40 Speed QLo Cool rpm 350 Heat rpm 410 Lo Cool rpm 400 Heat rpm 440 Me Cool rpm 480 Heat rpm...

Страница 8: ...g 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...

Страница 9: ...dB 48 Indoor Fan Type Backward Fan Material ABS GF10 Motor Type DC 8 poles Input Power W Output Power W 40 Speed QLo Cool rpm 350 Heat rpm 410 Lo Cool rpm 400 Heat rpm 440 Me Cool rpm 480 Heat rpm 51...

Страница 10: ...ng 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...

Страница 11: ...dB 48 Indoor Fan Type Backward Fan Material ABS GF10 Motor Type DC 8 poles Input Power W Output Power W 40 Speed QLo Cool rpm 350 Heat rpm 410 Lo Cool rpm 400 Heat rpm 440 Me Cool rpm 480 Heat rpm 51...

Страница 12: ...ng 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...

Страница 13: ...evel dB 48 Indoor Fan Type Backward Fan Material ABS GF10 Motor Type DC 8 poles Input Power W Output Power W 40 Speed QLo Cool rpm 350 Heat rpm 460 Lo Cool rpm 400 Heat rpm 480 Me Cool rpm 480 Heat rp...

Страница 14: ...ng 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...

Страница 15: ...evel dB 48 Indoor Fan Type Backward Fan Material ABS GF10 Motor Type DC 8 poles Input Power W Output Power W 40 Speed QLo Cool rpm 350 Heat rpm 460 Lo Cool rpm 400 Heat rpm 480 Me Cool rpm 480 Heat rp...

Страница 16: ...ng 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...

Страница 17: ...evel dB 48 Indoor Fan Type Backward Fan Material ABS GF10 Motor Type DC 8 poles Input Power W Output Power W 40 Speed QLo Cool rpm 350 Heat rpm 460 Lo Cool rpm 400 Heat rpm 480 Me Cool rpm 480 Heat rp...

Страница 18: ...ng 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...

Страница 19: ...evel dB 48 Indoor Fan Type Backward Fan Material ABS GF10 Motor Type DC 8 poles Input Power W Output Power W 40 Speed QLo Cool rpm 350 Heat rpm 460 Lo Cool rpm 400 Heat rpm 480 Me Cool rpm 480 Heat rp...

Страница 20: ...ng 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...

Страница 21: ...evel dB 50 Indoor Fan Type Backward Fan Material ABS GF10 Motor Type DC 8 poles Input Power W Output Power W 40 Speed QLo Cool rpm 390 Heat rpm 470 Lo Cool rpm 430 Heat rpm 490 Me Cool rpm 510 Heat rp...

Страница 22: ...imum C 30 Minimum C 16 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...

Страница 23: ...evel dB 50 Indoor Fan Type Backward Fan Material ABS GF10 Motor Type DC 8 poles Input Power W Output Power W 40 Speed QLo Cool rpm 390 Heat rpm 470 Lo Cool rpm 430 Heat rpm 490 Me Cool rpm 510 Heat rp...

Страница 24: ...imum C 30 Minimum C 16 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...

Страница 25: ...evel dB 55 Indoor Fan Type Backward Fan Material ABS GF10 Motor Type DC 8 poles Input Power W Output Power W 40 Speed QLo Cool rpm 480 Heat rpm 560 Lo Cool rpm 510 Heat rpm 580 Me Cool rpm 605 Heat rp...

Страница 26: ...ng 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...

Страница 27: ...23PBE for 1 room 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 Inn...

Страница 28: ...28 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control...

Страница 29: ...29 5 Dimensions 5 1 Indoor Unit...

Страница 30: ...30 6 Refrigeration Cycle Diagram...

Страница 31: ...31 7 Block Diagram...

Страница 32: ...32 8 Wiring Connection Diagram 8 1 Indoor Unit...

Страница 33: ...33 9 Electronic Circuit Diagram 9 1 Indoor Unit...

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

Страница 35: ...floor to ceiling exceeds three meters air flow distribution deteriorates and the effect is decreased 4 The installation position must be able to support a load four times the indoor unit weight 5 The...

Страница 36: ...h circumstances where cutting oil mist or iron powder exist especially in factories etc 3 Avoid places where inflammable gas is generated flows in contaminated or leaked 4 Avoid places where sulphurou...

Страница 37: ...id bending and bending back the same piping point more than three times This will result in hardening of the pipe 5 After deforming the pipe align centers of the union fitting of the indoor unit and t...

Страница 38: ...When drain set piping install as shown in the figure below Drain Test The air conditioner uses a drain up motor to drain water Use the following procedure to test the drain up motor operation Connect...

Страница 39: ...l In this case add heat insulation material according to the following procedure o Heat insulation material to be prepared Adiabatic glass wool with thickness 10 to 20 mm o Stick glass wool on all air...

Страница 40: ...all be approved polychloroprene sheathed 4 x 1 5 mm2 flexible cord type designation 60245 IEC 57 or heavier cord Secure the connecting cable onto the control board with the holder clamper Ensure the c...

Страница 41: ...the screws 3 pcs before fitting move decorative panel as illustrated and tighten all the screws 4 pcs Check before hand the height from the ceiling to the unit The front grille fitting direction is d...

Страница 42: ...P Be caution not to clamp the cord in between control board and control board cover Be caution not to clamp the cord in between control board and control board cover 6 After complete install back remo...

Страница 43: ...arts remote control setting temperature will be taken as base value for temperature shifting processes These shifting processes are depending on the air conditioner settings and the operation environm...

Страница 44: ...to detect the indoor intake and outdoor air temperature The operation mode is decided based on below chart Every 30 minutes the indoor and outdoor temperature is judged Based on remote control setting...

Страница 45: ...ed by operation mode heat exchanger temperature and intake air temperature and manual angles of direction can be adjusted using remote control 12 2 1 Vertical Airflow Operation Mode Airflow Direction...

Страница 46: ...changed from normal setting to quiet setting of respective fan speed This is to reduce sound of Hi Me Lo for 3dB 2 Manual fan speed for quiet operation is 1 step from setting fan speed 3 Outdoor fan s...

Страница 47: ...r 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 f...

Страница 48: ...ON timer sampling If Timer LED is blinking there is an abnormality operation occurs 12 8 Drain Pump Control Operation To drain out the condensed water trapped in the drain pan in order to prevent the...

Страница 49: ...h remote control to set change the advance setting of air conditioner operation 3 REMOTE CONTROL NUMBER SWITCH MODE The Remote Control Number Switch Mode will be activated if the Auto OFF ON button is...

Страница 50: ...gnal with same transmission code from remote control This could prevent signal interference when there are 2 or more indoor units installed nearby together To change remote control transmission code s...

Страница 51: ...r 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 Normal Pressure and...

Страница 52: ...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...

Страница 53: ...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 blinkin...

Страница 54: ...h until beep sound heard following by pressing the CHECK button at Remote Control Although operation forced to stop when abnormality detected emergency operation is possible for certain errors refer t...

Страница 55: ...ransmission 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...

Страница 56: ...re 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...

Страница 57: ...tion 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 Cause...

Страница 58: ...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 F...

Страница 59: ...ons 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 de...

Страница 60: ...termine 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...

Страница 61: ...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...

Страница 62: ...Decision Conditions During startup and operation of cooling and heating the temperatures detected by the indoor heat exchanger temperature sensor 2 are used to determine sensor errors Malfunction Caus...

Страница 63: ...tion 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 Faul...

Страница 64: ...tion 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 Fau...

Страница 65: ...ion 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 C...

Страница 66: ...ration 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 Operati...

Страница 67: ...pipe temperature sensor is above 60 C Malfunction Caused Air short circuit Clogged air filter of the indoor unit Dust accumulation on the indoor unit heat exchanger 2 3 way valve closed Detection erro...

Страница 68: ...l takes place when indoor pipe temperature is lower than 2 C Malfunction Caused Air short circuit Clogged air filter of the indoor unit Dust accumulation on the indoor unit heat exchanger 2 3 way valv...

Страница 69: ...nditions 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...

Страница 70: ...eration 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...

Страница 71: ...checking 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 o...

Страница 72: ...on Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit Malfunction Caused Compressor terminal disconnect F...

Страница 73: ...re 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 outd...

Страница 74: ...ed 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 ci...

Страница 75: ...n of cooling and heating when compressor tank temperature data 112 C is detected by the compressor tank temperature sensor Malfunction Caused Refrigerant shortage refrigerant leakage 2 3 way valve clo...

Страница 76: ...detected by checking the input current value being detected by current transformer CT with the compressor running Malfunction Caused Over current due to compressor failure Over current due to defecti...

Страница 77: ...door unit PCB Troubleshooting 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...

Страница 78: ...bly of Parts 1 Open the Intake Grille from the Front Grille by moving the catchers to center Fig 1 Fig 1 2 Remove the Control Board Cover by removing the screws Fig 2 Fig 2 3 Release the Fig 3 o CN ST...

Страница 79: ...d it to the Control Board Fig 4 Fig 4 5 Remove the Front Grille by removing the screw A and screws B C D half way open Fig 5 Fig 5 6 Remove the Air Guider and Drain Pan complete by removing the screws...

Страница 80: ...80 8 Remove the Fan Motor by release the Fan Motor lead wire connectors and Fan Motor screws Fig 8 Fig 8...

Страница 81: ...81 16 Exploded View and Replacement Parts List 16 1 Indoor Unit...

Страница 82: ...82 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...

Страница 83: ...R 1 CWD93C1050 22 SENSOR EVAPORATOR 1 CWA50C2549 23 HOLDER SENSOR 1 CWH32143 24 EVAPORATOR SUPPORTER 3 CWD911529A 25 TUBE ASS Y CAPIL TUBE 1 CWT07K1188 26 DRAIN PUMP COMPLETE 1 CWB53C1025 27 PANEL DRA...

Страница 84: ...ON 1 CWF615838 57 INSTALLATION INSTRUCTION 1 CWF615839 58 INSTALLATION INSTRUCTION 1 CWF615840 59 INSTALLATION INSTRUCTION 1 CWF615841 60 INSTALLATION INSTRUCTION 1 CWF615842 61 INSTALLATION INSTRUCTI...

Страница 85: ...85 16 2 CZ BT20E Front Grille Complete 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...

Страница 86: ...WH081007 10 BEARING 6 CWH641008 12 PLATE COVER FOR A S MOTOR 1 CWD911459 13 PLATE COVER FOR CONNECTING SHAFT 2 CWD911460 14 PLATE COVER FOR END SHAFT 1 CWD911461 21 ELECTRONIC CONT RECEIVER INDICATOR...

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