Panasonic MAC0105011C3 Service Manual
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Panasonic MAC0105011C3 Service Manual

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CS-A75KR CU-A75KR / CS-A95KR CU-A95KR / CS-A125KR
2001 Matsushita Air-Conditioning Corp. Sdn. Bhd. (183914D).
All rights reserved. Unauthorized copying and distribution is a
violation of law.
1. Features
- High Efficiency
- Compact Design
Order No: MAC0105011C3
Room Air Conditioner
1
CU-A125KR

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Summary of Contents for Panasonic Panasonic MAC0105011C3

  • Page 1 Order No: MAC0105011C3 Room Air Conditioner CS-A75KR CU-A75KR / CS-A95KR CU-A95KR / CS-A125KR CU-A125KR 2001 Matsushita Air-Conditioning Corp. Sdn. Bhd. (183914D). All rights reserved. Unauthorized copying and distribution is a violation of law. 1. Features - High Efficiency - Compact Design...
  • Page 2 - Comfort Environment - 8 hours of sleep mode operation - Air purifying filter with deodorizing function to reduce dust, smoke and odours - Random Auto Restart - Auto restart at randomly after power failure - Removable and Washable Front Panel - Remote Control-Self Illuminating Button - Catechin Air Purifying Filter - To trap dust, tabacco smoke and tiny particles in the room;...
  • Page 3 Unit CS-A75KR CU-A75KR Cooling Capacity 2.11 - 2.06 BTU/h 7,200 - 7,020 Heating Capacity 2.30 - 2.25 BTU/h 7,840 - 7,670 Moisture Removal Pint/h Power Source Phase Single 240 - 220 Cycle Airflow Method OUTLET SIDE VIEW TOP VIEW INTAKE...
  • Page 4 Air Volume Indoor Air (Lo) Cooling; 6.0 (210) - 5.7 — /min (200) (cfm) Heating; 6.3 (220) - 6.1 (210) Indoor Air (Me) Cooling; 6.3 (220) - 6.1 — /min (210) (cfm) Heating; 7.7 (270) - 7.4 (260) Indoor Air (Hi) Cooling;...
  • Page 5 Piping Connection Port inch G ; Half Union 3/8” G ; 3-way valve (Flare piping) inch L ; Half Union 1/4” L ; 2-way valve Pipe Size inch G ; (gas side) 3/8” G ; (gas side) (Flare piping) inch L ;...
  • Page 6 Capillary Tube Length — Cooling; 920, Flow Rate l/min — Cooling; 4.0, Heating Inner Diameter — Cooling; 1.1, Heating Air Filter Material P.P. — Style Honeycomb Capacity Control Capillary Tube Compressor Capacitor F, VAC — F, 440VAC Fan Motor Capacitor F, VAC F, 400VAC F, 400VAC...
  • Page 7 Air Volume Indoor Air (Lo) Cooling; 6.8 (240) - 6.0 — /min (210) (cfm) Heating; 6.8 (240) - 6.0 (210) Indoor Air (Me) Cooling; 8.0 (280) - 7.1 — /min (250) (cfm) Heating; 8.0 (280) - 7.1 (250) Indoor Air (Hi) Cooling;...
  • Page 8 Piping Connection Port inch G ; Half Union 3/8” G ; 3-way valve (Flare piping) inch L ; Half Union 1/4” L ; 2-way valve Pipe Size inch G ; (gas side) 3/8” G ; (gas side) (Flare piping) inch L ;...
  • Page 9 Capillary Tube Length — Cooling; 1,033, Flow Rate l/min — Cooling; 4.8, Heating Inner Diameter — Cooling; 1.2, Heating Air Filter Material P.P. — Style Honeycomb Capacity Control Capillary Tube Compressor Capacitor F, VAC — F, 370VAC Fan Motor Capacitor F, VAC F, 400VAC F, 400VAC...
  • Page 10 Air Volume Indoor Air (Lo) Cooling; 6.8 (240) - 6.0 — /min (210) (cfm) Heating; 6.8 (240) - 6.0 (210) Indoor Air (Me) Cooling; 8.4 (300) - 7.7 — /min (270) (cfm) Heating; 8.4 (300) - 7.7 (270) Indoor Air (Hi) Cooling;...
  • Page 11 Piping Connection Port inch G ; Half Union 1/2” G ; 3-way valve (Flare piping) inch L ; Half Union 1/4” L ; 2-way valve Pipe Size inch G ; (gas side) 1/2” G ; (gas side) (Flare piping) inch L ;...
  • Page 12 Capillary Tube Length — Cooling; 1,100, Flow Rate l/min — Cooling; 6.0, 13.4 Inner Diameter — Cooling; 1.3, Heating Air Filter Material P.P. — Style Honeycomb Capacity Control Capillary Tube Compressor Capacitor F, VAC — F, 370VAC Fan Motor Capacitor F, VAC F, 400VAC F, 400VAC...

  • Page 14: Refrigeration Cycle Diagram

    5. Refrigeration Cycle Diagram...

  • Page 15: Block Diagram

    6. Block Diagram...

  • Page 16: Wiring Diagram

    7. Wiring Diagram...
  • Page 17 REMARKS...
  • Page 18 : BLUE : BROWN : BLACK : GRAY : WHITE : RED : ORANGE : PINK : YELLOW/GREEN Resistance of Indoor Fan Motor Windings MODEL CS-A75KR CS-A95KR A125KR CONNECTION CWA921033CWA921032CWA921031 YELLOW-BLUE 707.1 451.2 450.7 YELLOW- 71.1 86.7 68.2 BROWN BROWN- 64.7 98.4 56.7...

  • Page 19: Operation Details

    8. Operation Details 8.1. Cooling Mode Operation Cooling in operation according to Remote Control setting. Time Delay Safety Control (3 minutes) - When the compressor is stopped by Remote Control, it restarts after 3 minutes when it is turned ON by Remote Control. - When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3 minutes.
  • Page 20 3 minutes waiting of Time Delay Safety Control is valid for Cooling Operation. Compressor Reverse Rotation Protection Control - If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and indoor heat exchanger is 2.5°C or less for 2 minutes, compressor will stop and restart automatically.
  • Page 21 Automatic Fan Speed Mode When Automatic Fan Speed is selected at Remote Control during cooling operation. - Fan speed rotates in the range of Hi to Me. - Deodorizing Control. Cooling Operation Time Diagram...
  • Page 22 8.2. Soft Dry Mode Operation - The unit starts cooling operation until the room temperature reaches the setting temperature set on the Remote Control, and then Soft Dry operation will start. - During Soft Dry operation, the Indoor Fan will operate at low speed. - The operation will be switched on and off for up to 10 minutes “ON”...
  • Page 23 Anti-Freezing Control - Same as Anti-Freezing Control for Cooling Mode operation. (For Soft Dry region, 6 minutes waiting is valid during compressor stops.) / Compressor Reverse Rotation Protection Control - Same as Compressor Reverse Rotation Protection Control for Cooling Mode Operation. (For Soft Dry region, 6 minutes waiting is valid during compressor stops.) Compressor Protection Control - Same as Compressor Protection Control for Cooling Mode...
  • Page 24 Soft Dry Operation Time Diagram 8.3. Heating Mode Operation...
  • Page 25 Heating in operation according to Remote Control setting. Time Delay Safety Control - When the compressor is stopped by Remote Control, it restarts after 3 minutes when the Remote Control is turned ON. - When the setting temperature is reached during heating operation, the compressor stops and it will not start for 4 minutes.
  • Page 26 (Time Delay Safety Control is valid). T = Indoor heat exchanger temperature - intake air temperature. / This is to protect reverse rotation of the compressor when there is a instantaneous power failure. 4-way Valve Control - 4-way valve always ON during Heating operation. (Except Deicing operation) - When the unit is switched to “OFF”...
  • Page 27 Hot Start Control When Heating operation starts, Indoor Fan will not start until the indoor heat exchanger reaches 30°C as diagram shown. Hot Start is completed when indoor heat exchanger rises to 39°C. Anti Cold Draft Control - This operation is to prevent the Cold Draft during Heating mode operation.
  • Page 28 Note: SSLo: Fan will be running at Lo speed with Indoor heat exchanger temperature 1.5 sec ON and 5.5 sec OFF. - After 30 sec. from compressor OFF (thermo OFF), Indoor fan will run at SSLo speed only. - Anti Cold Draft Control will stop when: - Intake temperature <...
  • Page 29 - If use Manual Fan Speed, at above diagram will operate with setting Fan Speed.
  • Page 30 Heating Operating Time Diagram Deicing Control Deice starts to prevent frosting at outdoor heat exchanger. - Normal Deicing Deice operations detection commences after 30 minutes of Heating operation starts or 60 minutes after previous deice operation. If the TRS (Thermal Reed Switch) senses the outdoor piping temperature drops to -3°C (TRS CLOSE) or less for 50 sec.
  • Page 31 2. TRS senses the outdoor piping temperature rises to 4°C (TRS OPEN). 3. Deicing will not end immediately as time delay (Td) is valid as shown below. Time taken from deicing starts to TRS OPEN (T) Td (seconds) T < 3 minutes 3 minutes T <...
  • Page 32 Overload Deicing Time Diagram 8.4. Automatic Mode Operation 1. When the Automatic Mode Operation is selected, the indoor fan operates at Lo fan speed for 25 seconds to sense intake air temperature and determine the 1st operation mode. 2. Operation mode will be determine again after 1 hour of operation, if the room temperature reaches to set temperature and compressor off time is over 7 minutes 30 seconds continuously.
  • Page 33 Present Judgement Next Mode Mode Cooling Soft Dry Heating Cooling 23°C Cooling (Judgement: Not Applicable (Judgement 23°C & Above) Below 23°C) Heating Soft Dry 20°C Soft Not Applicable (Judgement: (Judgement 20°C & Above) Below 20°C) Heating Heating (Judgement: Not Applicable (Judgement Cooling 25°C Heating...
  • Page 34 Cooling or Soft Dry Operation When you press the SLEEP Mode, the following movement will start to avoid overcooling. - The fan speed refer to Indoor Fan Motor Control. - The setting temperature will be risen by 0.5°C at the start of operation and by 0.5°C one hour later.
  • Page 35 Swing Blade position. - Random Auto Restart Control is not available when Timer or Sleep Mode is set. - This control can be omitted by open the circuit of JX1. (Refer Circuit Diagram) 8.7. Delay ON Timer Control - When the Delayed ON Timer is set by using the remote control, the unit will start operate slightly before the set time, so that the room will reach nearly to the set temperature by the desired time.
  • Page 36 When set to Auto Fan Speed, the fan speed is shifted automatically between Stop to SHi depend on each operation as shown below. Manual Fan Speed Control Basic fan speed adjustment (3 settings, from Lo to Hi) can be carried out by using the Fan Speed selection button at the remote control.
  • Page 37 Economy Auto Fan Speed Sleep Shift MODE JUDGEMENT 8.10. Airflow Direction Control 1. Vertical Airflow Direction Cooling and Soft Dry Mode - The louver swings up and down as shown above. - The louver does not swing when the Indoor Fan stops during operation.
  • Page 38 - The louver can be selected between 14° - 36° (as shown above) when pressing Manual Airflow Direction Selection Button. - The louver can be selected between 0° - 61° (as shown above) when pressing Manual airflow Direction Selection Button. 3.
  • Page 39 change to Auto Air Swing. 2. Heating Mode - When the Economy Mode is set, the temperature will be automatically decreased 0.5°C against the present setting temperature. - The Fan Speed will shift as shown below: - Vertical Airflow Direction:- In “Manual”...
  • Page 40 In “Manual” setting, the vane will automatically shift down 10°C lower than previous setting. In “Auto” setting, the vane will automatically swing up and down. However the upper and down. However the upper and lower limit will be shifted 10° downward. 2.

  • Page 41: Installation Instructions

    10. Installation Instructions Required tools for Installation Works 1. Philips screw 5. Spanner 9. Gas leak detector 13. Multimeter driver 2. Level gauge 6. Pipe cutter 10. Measuring tape 14. Torque wrench 18 N.m (1.8 kgf.m) 42 N.m (4.2 kgf.m) 55 N.m (5.5 kgf.m) 3.
  • Page 42 the installation. Then, explain to user the operation, care and maintenance as stated in instruction. Please remind the customer to keep the operating instructions for future reference. 1. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or fire.
  • Page 43 1. Grounding is necessary. It may cause electrical shock if grounding is not perfect. 2. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may cause fire. 3.
  • Page 44 Applicable piping kit CZ-3F5, 7AEN (CS/CU-A75KR, A95KR) CZ-4F5, 7, 10AN (CS/CU-A125KR) SELECT THE BEST LOCATION INDOOR UNIT - There should not be any heat source or steam near the unit. - There should not be any obstacles blocking the air circulation. - A place where air circulation in the room is good.
  • Page 45 Piping Max. Max. Additional size Common Elevation Piping Refrigerant Length Length Model (g/m) Gas Liquid A75KR/ 1/4” A95KR 8” A125KR 1/4” 2” Indoor/Outdoor unit installation diagram...

  • Page 46: Indoor Unit

    - This illustration is for explanation purposes only. / The indoor unit will actually face a different way. 10.2. INDOOR UNIT 10.2.1. SELECT THE BEST LOCATION / (Refer to “Select the best location” section) 10.2.2. HOW TO FIX INSTALLATION PLATE The mounting wall is strong and solid enough to prevent it from the vibration.
  • Page 47 : Unit centre should be at more than 450 mm at right and left of the wall. The height should be more than 195 mm from the ceiling. : From installation plate end to unit left side end is 50 mm. : From installation plate end to unit right side end is 50 mm.
  • Page 48 Caution When the wall is hollow, please be sure to use the sleeve for tube ass’y to prevent dangers caused by mice biting the indoor/ outdoor connecting cable. 4. Finish by sealing the sleeve with putty or caulking compound at the final stage.
  • Page 50 (This can be used for left rear piping and left bottom piping also.)
  • Page 51 10.2.5. CONNECT THE CABLE TO THE INDOOR UNIT 1. The inside and outside connecting cable can be connected without removing the front grille.
  • Page 52 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 5 × 1.5 mm flexible cord, type designation H05 RN-F or heavier cord. - Ensure the color 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.

  • Page 53: How To Take Out Front Grille

    1. Open the front panel. 2. Remove the air filters. 3. Hold the purifying filters by their tabs and install as shown in the illustration at below. HOW TO TAKE OUT FRONT GRILLE Please follow below steps to take out front grille if necessary such as when servicing. 1.

  • Page 54: Auto Operation Mode

    The below operations will be performed by pressing the “AUTO” switch. 1. AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto Switch is pressed. 2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE) The Test Run operation will be activated if the Auto Switch is pressed continuously for more than 5 sec.
  • Page 55 10.3.3. CONNECTING THE PIPING Connecting the Piping to Indoor Unit Please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe. (In case of using long piping) Connect the piping - Align the center of piping and sufficiently tighten the flare nut with fingers.
  • Page 56 10.3.4. EVACUATION OF THE EQUIPMENT WHEN INSTALLING AND AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. 1. Connect a charging hose with a push pin to the Low and High side of a charging set and the service port of the 3-way valve.
  • Page 57 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. CAUTION - If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in...
  • Page 58 wrap the insulated piping end to prevent water from going inside the piping. 2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E FOAM with thickness 6 mm or above. DISPOSAL OF OUTDOOR UNIT DRAIN WATER - If a drain elbow is used, the unit should be placed on a stand which is taller than 3 cm.

  • Page 59: Evaluation Of The Performance

    EVALUATION OF THE PERFORMANCE - Operate the unit at cooling operation mode for fifteen minutes or more. - Measure the temperature of the intake and discharge air. - Ensure the difference between the intake temperature and the discharge is more than 8°C. NOTE These equipment shall be connected to a suitable mains network with a main impedance...

  • Page 60: Way, 3-Way Valve

    Is there any gas leakage at flare nut connections? Has the heat insulation been carried out at flare nut connection? Is the connecting cable being fixed to terminal board firmly? Is the connecting cable being clamped firmly? Is the drainage OK? (Refer to “Check the drainage”...
  • Page 61 2-way Valve (Liquid Side) 3-way Valve (Gas Side) Works Shaft Position Shaft Position Service Shipping Close Closed Closed (With valve cap) (With valve cap) (With Evacuation Closed Closed Open (Installation and (Counter-Clockwise) (Clockwise) (Push Re-installation) Operation Open Open Closed (With valve cap) (With valve cap) (With Pumping down...
  • Page 62 2-way Valve (Liquid Side) 3-way Valve (Gas Side) Gas releasing Open (Servicing) Open Open (Connected manifold 11.1. Evacuation of Installation WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. If air remain in the indoor unit and refrigeration pipes, it will affect the compressor, reduce to cooling capacity, and could lead to a malfunction.
  • Page 63 4. Close the Low side valve of the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately five minutes. BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID GAS LEAKAGE.
  • Page 64 Procedure: Confirm that both the 2-way and 3-way valves are set to the opened position. - Remove the valve stem caps and confirm that the valve stems are in the opened position. - Be sure to use a hexagonal wrench to operate the valve stems.
  • Page 65 P.C.B. (Simply press the pumping down button if it is equipped.) So that the unit can be operated. 7. Immediately set the 3-way valve to the closed position. - Do this quickly so that the gauge ends up indicating 0.1 MPa (1 kg/cm G) to 0.3 MPa (3 kg/cm 8.
  • Page 66 Procedure: 1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. - Be sure to connect the end of the charging hose with the push pin to the service port. 2.
  • Page 67 Caution If gauge needle does not move from 0 MPA (0 cmHg) to -0.1 MPa (-76 cmHg) in step (3) above, take the following measures: If the leaks stop when the piping connections are tightened further, continue working from step 3. If the leaks do not stop when the connections are retightened, repair the location of the leak.
  • Page 68 - Purge the air from charge hose. 4. Open the valve (Low side) on the charge set and discharge the refrigerant until the gauge indicates 0.05 MPa (0.5 kg/cm G) to 0.1 MPa (1 kg/cm - If there is no air in the refrigeration cycle (the pressure when the air conditioner is not running is higher than 0.1 MPa (1 kg/ G), discharge the refrigerant until the gauge indicates 0.05 MPa (0.5 km/cm...
  • Page 69 pump, and confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump). 4. Disconnect the charge hose from the vacuum pump. - Vacuum pump oil If the vacuum pump oil becomes dirty or depleted, replenish as needed.

  • Page 70: Servicing Information

    refrigerant, it can be charged with a little at a time (approximately 150 g each time) while operating the air conditioner in the cooling cycle; however, one time is not sufficient, wait approximately 1 minute and then repeat the procedure. (pumping down-pin) This is different from previous procedures.
  • Page 71 holding the electronic controller. (Fig. - Indoor Fan Motor removal procedure:- 1. Remove the control board by:- - Releasing CN-C (GRN) connector. (Fig. - Releasing CN-FM (GRN) connector. (Fig. - Releasing CN-STM connector. (Fig. - Remove the earth wire screw. (Fig.
  • Page 72 Fig. 4 - Finally remove the fan motor by removing the screw. (Fig. - REMINDER - To reinstall the fan motor, adjust the connector of the fan motor as Fig. - Cross Flow Fan Removal Procedure. 1. Remove the control board and the fan motor by referring to the “Indoor Fan Motor Removal Procedure”.
  • Page 73 Fig. 6 Fig. 7 - Remote Control Reset When the batteries are inserted for the first time, or the batteries are replaced, all the indications will blink and the remote control might not work. If this happen, remove the back cover of the remote control and you will find a resetting terminal, and by shorting it with a minus screwdriver, it will return to normal.

  • Page 74: Troubleshooting Guide

    13. Troubleshooting Guide 13.1. Refrigeration cycle system In order to diagnose malfunctions, make sure that there are no electrical 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 to the right.
  • Page 75 13.1.1. Relationship between the condition of the air conditioner and pressure and electric current...
  • Page 76 Cooling Mode Heating Mode Condition of the conditoner Low Pressure High Electric Low Pressure High Electric Pressure current Pressure current during during operation operation Insufficient refrigerant (gas leakage) Clogged capillary tube or Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient...

  • Page 77: Technical Data

    Nature of fault Symptom Electric current during operation becomes approximately 20% lower than the normal value. Insufficient compressing of a The discharge tube of the compressor becomes abnormally hot (normally 70 to 90°C). compressor The difference between high pressure and low pressure becomes almost zero. Electric current reaches a high level abnormally, and the value exceeds the limit of an ammeter.
  • Page 79 240V Outdoor Temp. (°C) Indoor wet bulb temp. 17.0°C 2.09 1.59 0.60 1.96 1.52 0.65 1.82 1.46 0.70 1.65 1.39 0.75 19.0°C 2.11 0.66 19.5°C 2.30 1.66 0.62 2.15 1.60 0.66 2.00 1.54 0.71 1.82 1.46 0.76 22.0°C 2.50 1.72 0.63 2.34 1.66...
  • Page 80 240V Outdoor Temp. (°C) Indoor wet bulb temp. 17.0°C 3.37 2.56 1.20 3.15 2.45 1.29 2.93 2.36 1.38 2.67 2.24 1.49 19.0°C 3.40 1.31 19.5°C 3.70 2.68 1.22 3.46 2.57 1.32 3.22 2.48 1.41 2.93 2.36 1.52 22.0°C 4.04 2.78 1.24 3.77 2.67...

  • Page 83: Exploded View

    15. Exploded View...

  • Page 84: Replacement Parts List

    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. 16. Replacement Parts List <Model: CS-A75KR / CS-A95KR / CS-A125KR>...
  • Page 85 DESCRIPTION & NAME Q’TY CS-A75KR CS-A95KR CS-A125KR REMARKS CHASSY COMPLETE CWD50C338 PARTICULAR PIECE CWD931019 FAN MOTOR CWA921033 CWA921032 CWA921031 LEAD WIRE - FAN MOTOR CWA67C2097 CROSS FLOW FAN CWH02C060 BEARING CWH64K007 SCREW - CROSS FLOW FAN CWH4580304 EVAPORATOR & TUBE ASS’Y COMPLETE CWB30C1059 CWB30C1060 INTAKE AIR SENSOR HOLDER...
  • Page 86 DESCRIPTION & NAME Q’TY CS-A75KR CS-A95KR CS-A125KR REMARKS BAG COMPLETE - INSTALLATION SCREW CWH82C067 AIR PURIFYING FILTER COMPLETE CWD00C1028 AIR PURIFYING FILTER (CATECHIN) CWD001014 AIR PURIFYING FILTER (DEODORIZING) CWD001033 REMOTE CONTROL HOLDER CWH36161 (Note) - All parts are supplied from MACC, Malaysia (Vendor Code: 086). - “O”...
  • Page 87 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. 18. Replacement Parts List <Model: CU-A75KR / CU-A95KR>...
  • Page 88 DESCRIPTION & NAME Q’TY CU-A75KR CU-A95KR REMARKS CHASSY ASS’Y CWD50K2037A CWD50K2038A FAN MOTOR BRACKET CWD54113 SCREW - FAN MOTOR BRACKET CWH4580399 FAN MOTOR CWA95245 SCREW - FAN MOTOR MOUNT CWH55027 PROPELLER FAN CWH00K052 NUT - PROPELLER FAN CWH56032 COMPRESSOR 2RS122D5AB02 2PS164D3AD02 ANTI - VIBRATION BUSHING CWH50077...
  • Page 89 - All parts are supplied from MACC, Malaysia (Vendor Code: 086). - “O” marked parts are recommended to be kept in stock. 19. Exploded View 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. 20.
  • Page 90 DESCRIPTION & NAME Q’TY CU-A125KR REMARKS CHASSY ASS’Y CWD50K659A FAN MOTOR BRACKET CWD54254 SCREW - FAN MOTOR BRACKET CWH55189 FAN MOTOR CWA95381 SCREW - FAN MOTOR MOUNT CWH55406 COMPRESSOR 2KS224D5CA02 ANTI - VIBRATION BUSHING CWH50055 NUT - COMPRESSOR MOUNT CWH4582065 PACKING - COMPRESSOR MOUNTE CWB81047 CONDENSER...

  • Page 91: Electronic Parts List

    - All parts are supplied from MACC, Malaysia (Vendor Code: 086). - “O” marked parts are recommended to be kept in stock. 21. Electronic Parts List <Electronic Controller Part No.: CWA742320, CWA742327, CWA742313> SYMBOL DESCRIPTION & NAME PART NO. SOUND GENERATOR A48040 TRANSFORMER A40322...
  • Page 92 How to use electronic circuit diagram...
  • Page 93 TIMER TABLE Test mode Name Time (When test point Remarks Short-circuited) Sleep Mode Waiting 1 hr. 6 sec. Sleep Mode Operation 8 hrs. 48 sec. 1 hr. 1 min. Real Timer 10 min. 10 sec. 1 min. 1 sec. Time Delay Safety Control 2 min.
  • Page 94 POWERFUL MODE 15 min. 4.5 sec. Random Auto Restart Control 0 ~ 150 sec. 0 sec. TRS Recovery Detection 12 min. 72 sec. 6 min. 36 sec. 3 min. 18 sec. 1 min. 6 sec. Time Save Control (Heating) 30 min. 3 sec.
  • Page 95 22.3. PRINT PATTERN / INDOOR UNIT PRINTED CIRCUIT BOARD / / / BOTTOM VIEW...
  • Page 96 [MACC] Printed in Malaysia /...
  • Page 97 Remote Control Self illuminating button OFF / ON I TEMP. Operation OFF / ON Room Temperature Setting • Temperature Setting (16°C to 30°C) • Automatic Operation MODE Operation with 2°C higher than Operation Mode Selection standard temperature. • Automatic Operation Mode Operation with standard AUTO temperature.
  • Page 98 Indoor Unit AUTO OFF / ON Automatic Operation Button Sleep Mode Auto Control • Press for < 5s to operate Automatic • Indoor Fan operates at Low speed. operation mode. • Operation stops after 8 hours. (Used when the remote control cannot be used.) Indoor Fan Speed Control •...
  • Page 99 Outdoor Unit CU-A75KR / CU-A95KR CU-A125KR Compressor Reverse Rotation Deice Control Protection Control • To prevent frosting at outdoor heat exchanger. (Only for Heating Operation) • To protect compressor from reverse • Temperature of outdoor heat exchanger rotation when there is a instantaneous is sensed by TRS (Thermal Reed Switch).

  • Page 100: Safety Precautions

    SAFETY PRECAUTIONS Before operating, please read the following “Safety Precautions” carefully. To prevent personal injury, injury to others and property damage, the following instructions must be followed. Incorrect operation due to failure to follow instructions will cause harm or damage, the seriousness of which is classified as follows : Warning Caution...

  • Page 101: Operation Precautions

    Operation Precautions Do not insert plug to operate the unit. Warning Do not pull out plug to stop the unit. This sign warns of death or serious injury. Plug in properly. Do not share outlet. Do not operate with wet hands. Use specified power cord.
  • Page 102 Switch off the power supply if the unit is Caution not used for a long period. This sign warns of injury. Do not pull the cord to disconnect the plug. Switch off the power supply before cleaning it. Do not wash the unit with water. Do not use for other purpose such as preservation or etc.

  • Page 103: Name Of Each Part

    NAME OF EACH PART Indoor Unit Air Intake Vent Front Panel Power Supply Cord Panel Opener Signal Receptor Horizontal Airflow Direction Air Outlet Vent Louver (Manually adjusted) Operation Indicators Vertical Airflow Direction Louver POWER : Green SLEEP : Orange TIMER : Orange Economy/Powerful Indicators Economy - Green...
  • Page 104 Outdoor Unit Air Intake Vents Connecting cable (Rear) (Side) Drain Hose Piping Air Outlet Vents Ground Terminal (Inside Cover) Accessories Remote Control Remote Control Holder Two RO3 (AAA) dry-cell batteries or Air Purifying Filters equivalent (Catechin Air Purifying Filters and Deodorizing Filters)
  • Page 105 Remote Control Operation Display Signal Transmitter OFF/ON Button (Self-illuminating Button) Room Temperature Setting Button (Self-illuminating Button) Powerful Mode Operation Button When the remote control cover is opened Operation Display Operation Mode Selection Button Clock Button Fan Speed Selection Button Economy Mode Manual Airflow Direction Operation Button Selection Button...

  • Page 106: How To Use The Remote Control

    How to use the remote control Notes • Do not throw or drop • Do not get it wet • Certain type of flourescent lamps may affect signal reception. Consult your dealer. Signal receptor • Signal received sound. One short beep or one long beep. •...

  • Page 107: Preparation Before Operation

    PREPARATION BEFORE OPERATION Indoor Unit Warning Ensure the power plug is securely inserted. A loose plug may cause a fire or an electric shock. Connect the power supply cord to an independent power supply. Open the front panel Remove the air filters Insert the air purifying filters Insert the air filters Close the front panel...

  • Page 108: Remote Control Inserting Batteries

    Remote Control Inserting batteries OPEN Slide the cover to open Be sure the directions are correct • Open the remote control cover and confirm the display 12:00 PM is flashing. Set the current time (Clock) immediately to prevent battery exhaustion. Setting the clock Press the clock button ←...

  • Page 109: How To Operate

    HOW TO OPERATE Automatic, Heating, Cooling, Soft Dry Press to select the desired operation mode Display When pressed, the display changes in this order. HEAT COOL Close the Cover Press to start the operation POWER indicator LED (Green) on indoor unit will light up. Press once more to stop operation.

  • Page 110: Adjusting Airflow Direction And Fan Speed

    Adjusting Airflow Direction And Fan Speed Press to select Fan speed • The display changes in this order Automatic Medium High Selecting Vertical Airflow Direction Press AUTO, • Cooling and Soft Dry – The louver swing up and down automatically. •...

  • Page 111: Setting The Timer

    SETTING THE TIMER Ensure that the current time is correct before setting the timer. The timer cannot be set if the time display is flashing. Press ON-TIMER Flashes → Example: Set the ON-TIMER to 7:00AM Press to set the time Increase by 10 minutes Decrease by 10 minutes * Press continuously for quick...

  • Page 112: Recommended Setting Of Timer

    Recommended Setting of Timer When you sleep • Set the time at which you will go to sleep with the OFF-TIMER. This prevent wastage of electricity. When you wake up • Set the time at which you will wake up with the ON-TIMER.

  • Page 113: Convenience Operation

    CONVENIENCE OPERATION Sleep Mode This is to obtain a comfortable room temperature while sleeping. To set the sleep mode, press SLEEP. * The sleep indicator on the indoor unit will light up. To cancel the sleep mode, press once more. Operation details •...

  • Page 114: Economy Or Powerful Mode

    Economy or Powerful Mode Economy and Powerful operation cannot be selected simultaneously. Economy Mode To save electrical power consumption. However, please use this mode when the room have reached your desired temperature. • Press ECONOMY * Economy indicator (Green) on indoor unit lights •...

  • Page 115: Care And Maintenance

    CARE AND MAINTENANCE Cleaning the Indoor Unit and Remote Control • Wipe gently with a soft, dry cloth. • Do not clean with water hotter than 40°C or with polishing fluids. Caution • The front panel can be removed and cleaned with water.

  • Page 116: Cleaning The Front Panel

    Cleaning the Front Panel (Must be removed before washing) Caution • Stand on a level surface when • Do not touch the metal parts in • Do not leave water on the removing the front panel. the indoor unit after removing panel after cleaning.

  • Page 117: Replacing The Air Purifying Filters

    Replacing the Air Purifying Filters (Once every 3 month) • Do not reuse dirty filters. Consult the nearest authorized dealer. (Air Purifying filter No. CZ-SFD50N) • These filters function effectively for not more than three months. • If the air conditioner operates with dirty filters:- Air is not purified Cooling capacity decreases Foul odours are emitted...

  • Page 118: Pre-Season Inspection

    Pre-season Inspection • Is the discharge air cold (warm)? Operation is normal if, 15 minutes after the start of operation, the temperature difference between the air intake and outlet vents is 8°C or above for cooling and 14°C or above for heating. •...

  • Page 119: Troubleshooting

    TROUBLESHOOTING Normal Operation - Is it okay? - This is the answer. - Air conditioner has been restarted, but does not operate for 3 minutes. - A sound like water flowing can - This is to protect the air conditioner. Wait until the air conditioner begins be heard.

  • Page 120: Abnormal Operation

    Abnormal Operation Hmmm! The air conditioner does not operate. Air conditioner operation noise too loud. • Has a circuit breaker been tripped? • Is the installation work slanted? • Has the power plug been removed • Is the front grille closed properly? from the wall outlet? •...

  • Page 121: Helpful Information

    HELPFUL INFORMATION Auto Operation Button Automatic Operation • If the remote control fails to function or misplaced, press Auto Operation button for Automatic operation. • The Automatic operation will be activated immediately once the Auto operation button is pressed. However, temperature cannot be adjusted in this operation.

  • Page 122: Energy Saving And Operation Hints

    ENERGY SAVING AND OPERATION HINTS Air Filter and Air Purifying Filter Clean the air filter every 2 weeks and change the Air Purifying Filter every 3 Setting Temperature months. Dirty filter may reduces cooling Set the temperature 1°C higher or heating efficiency. (Cooling operation) or 2°C lower (Heating operation) than actually desired.
  • Page 123 Warning 1) If the supply cord is damaged or need to be replaced, it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard. 2) Remove power plug or disconnect from the mains before servicing this appliance. 3) Do not repair by yourself.
  • Page 124 • CS-A75KR / CU-A75KR • CS-A95KR / CU-A95KR • CS-A125KR / CU-A125KR SCHEMATIC DIAGRAM 1/3 MAIN RECEIVER (PH3) PH302C CN-RCV VCC1 5.1k RY-PWR DRIVE RY-PWR 2SD148-4X 0.01µ 0.01µ 2.2k VCC2 6.3V 47µ 0.01µ 137k ERA15-01 6.2k TEST INDICATOR A54LNK2172B (MX-9) CN-DISP ECONOMY (PH-6)
  • Page 125 SCHEMATIC DIAGRAM 2/3 4.7k 4.7k A55DC143XKTX RELAY DRIVE 4.7k A55DC143XKTX RELAY DRIVE A55DC143XKTX RELAY DRIVE SSR1 TIMER STEPPING MOTOR SHORTEN DRIVE SIGNAL AUTO OPERATION TEST RUN RELAY DRIVE SIGNAL REMOTE CON SOUND S1VB20 POWER CLOCK INPUT – INTP1 DISPLAY REMOTE CONTROL COMMAND INPUT INTP0 8MHz (27pF X 2)
  • Page 126 SCHEMATIC DIAGRAM 3/3 AC 220-240V 50/60Hz SINGLE PHASE TEMPERATURE FUSE 102°C 4.7k CN-FUSE2 CN-FUSE1 (RED) (BLU) (WHT) A55DC143XKTX RELAY DRIVE CWA40322 RY-HOT ZNR3 CWA00161 511U RY-SHI RY-H RY-PWR TERMINAL RY-M SSR2 SSR1 FUSE RY-HOT A56W2DEH1-5 2.0A SSR2 WHITE A54MA165TA5 BLACK ZNR2 A54MA723TA 511U...

This manual is also suitable for:

Panasonic cu-a75krPanasonic cs-a95krPanasonic cu-a95krPanasonic cs-a125krPanasonic cu-a125krPanasonic cs-a75kr

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