Panasonic CS-G95KE CU-G95KE Service Manual
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Panasonic CS-G95KE CU-G95KE Service Manual

Panasonic cs-g95ke cu-g95ke/ cs-g125ke cu-g125ke room air conditioner
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CONTENTS
CS-G95KE CU-G95KE
CS-G125KE CU-G125KE
Page
2
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8
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48
© 2000 Matsushita Air-Conditioning Corp. Sdn. Bhd.
(183914D) All rights reserved. Unauthorized copying
and distribution is a violation of law.
Order No: MAC0010056C2

Room Air Conditioner

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72
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Summary of Contents for Panasonic CS-G95KE CU-G95KE

  • Page 1: Table Of Contents

    Order No: MAC0010056C2 Room Air Conditioner CS-G95KE CU-G95KE CS-G125KE CU-G125KE CONTENTS Page Page 1 Features 10 Installation Instructions 2 Functions 11 Servicing Information 3 Product Specifications 12 Technical Data 4 Dimensions 13 Exploded View 5 Refrigeration Cycle Diagram 14 Replacement Parts List...

  • Page 2: Features

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 1 Features • Product • Serviceability − Powerful Mode for quick cool/heat − Self diagnosis − Compressor operating frequency control to maintain − Forced Cooling and Heating operation at rated desired room temperature frequency − Automatic Restart after power failure −...

  • Page 3: Functions

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 2 Functions Remote Control Self illuminating button OFF / ON I TEMP. Operation OFF / ON Room Temperature Setting • Temperature Setting (16°C to 30°C) Operation Mode Selection TIMER ON OFF • Automatic Operation Mode Timer Operation Selection •...

  • Page 4: Indoor Unit

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE Indoor Unit FOR ALL OPERATIONS AUTO OFF / ON Power Monitor Display * * * * * Automatic Switch • Press for < 5s to operate Automatic • Lights up during compressor operation. Operation Mode. (Used when the remote control cannot be used.) Operation Mode •...
  • Page 5 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE COOLING / SOFT DRY OPERATION Room Temperature Control * * * * * Deodorizing Control * * * * * Compressor Operation Frequency Sensible Heat Control * * * * * CS-G95KE CS-G125KE Operation Mode Cooling 15 –...
  • Page 6 S-G95KE CU-G95KE / CS-G125KE CU-G125KE HEATING OPERATION AUTOMATIC OPERATION Anti-Cold Draft Control * * * * * Hot Start * * * * * FAN OPERATION Intake Air Temperature Control * * * * * High Pressure Control * * * * * Standby Control * * * * * Deice Operation * * * * *...

  • Page 7: Outdoor Unit

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Outdoor Unit Outdoor Fan Motor Low Frequency Operation Protection * * * * * • 6 poles induction motor, 1 speed. Time Delay Safety Control * * * * * Mininum Frequency Operation Protection * * * * *...

  • Page 8: Product Specifications

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 3 Product Specifications Unit CS-G95KE CU-G125KE Cooling Capacity 2.6 (0.70 - 3.00) kcal/h 2,240 (600 - 2,580) Heating Capacity 3.6 (0.63 - 5.00) kcal/h 3,100 (540 - 4,300) Moisture Removal Pint/h Power Source Phase Single Cycle Airflow Method OUTLET...
  • Page 9 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Dimensions Height inch (mm) 10 - 31/32 (279) 21 - 9/32 (540) Width inch (mm) 31 - 15/32 (799) 27 - 17/32 (699) Depth inch (mm) 7 - 27/32 (199) 11 - 7/32 (285) Net Weight lb (kg) 20 (9.0)
  • Page 10 S-G95KE CU-G95KE / CS-G125KE CU-G125KE Unit CS-G125KE CU-G125KE Cooling Capacity 3.45 (0.74 - 4.00) kcal/h 2,970 (640 - 3,440) Heating Capacity 4.80 (0.70 - 6.50) kcal/h 4,130 (600 - 5,590) Moisture Removal Pint/h Power Source Phase Single Cycle Airflow Method OUTLET SIDE VIEW TOP VIEW...
  • Page 11 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Dimensions Height inch (mm) 10 - 31/32 (279) 21 - 9/32 (540) Width inch (mm) 31 - 15/32 (799) 27 - 17/32 (699) Depth inch (mm) 7 - 27/32 (199) 11 - 7/32 (285) Net Weight lb (kg) 20 (9.0)

  • Page 12: Dimensions

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 4 Dimensions...
  • Page 13 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE...

  • Page 14: Refrigeration Cycle Diagram

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 5 Refrigeration Cycle Diagram...

  • Page 15: Block Diagram

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 6 Block Diagram...

  • Page 16: Wiring Diagram

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 7 Wiring Diagram Resistance of Outdoor Fan Motor Windings CONNECTION CWA95384 (Ω) BLUE - YELLOW 264.1 YELLOW - RED 304.8 Resistance of Compressor Windings CONNECTION 2RD132X5BB03 (Ω) U - V U - W V - W...

  • Page 17: Blue - Yellow

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Resistance of Outdoor Fan Motor Windings CONNECTION CWA95380 (Ω) BLUE - YELLOW 234.1 YELLOW - RED 263.5 Resistance of Compressor Windings CONNECTION 2RD132X5BA03 (Ω) U - V U - W V - W...

  • Page 18: Operation Details

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 8 Operation Details 8.1. Function Temperature Shift Once the operation stars, the remote control setting temperature will be shifted internally based on the setting fan speed and outdoor air temperature. In addition, if Sleep Mode or Powerful Mode are set, the temperature shift will be carried out. Setting of Internal Setting Temperature The internal setting temperature can be decided as follows: Table a...
  • Page 19 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Cooling Operation A. Room Temperature Control (i) When the remote control setting temperature is less than 24°C (ii) When the remote control setting temperature is 24°C and above • Compressor OFF temperature = Compressor ON temperature.
  • Page 20 S-G95KE CU-G95KE / CS-G125KE CU-G125KE B. Deodorizing Control • This control is available during automatic fan speed for Cooling and Soft Dry Operation. It is not available during anti- freezing control. • When the compressor is in operation, the deodorizing status starts from 1 → 2 → 3. •...
  • Page 21 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Soft Dry Operation A. Room Temperature Control At the start of operation, cooling operation is running until the intake air temperature is 0.5°C higher than internal setting temperature, then the operation will shift to Soft Dry with indoor fan speed SLo.
  • Page 22 S-G95KE CU-G95KE / CS-G125KE CU-G125KE B. Deodorizing Control • This control is available during automatic fan speed for Cooling and Soft Dry Operation. It is not available during anti- freezing control. • When the compressor is in operation, the deodorizing status starts from 1 → 2. •...
  • Page 23 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Heating Operation A. Room Temperature Control • During heating operation, the room temperature control depends on intake air temperature and internal setting temperature. Basically it can be divided into 2 periods as shown below: (i) When indoor fan speed is Medium of above.
  • Page 24 S-G95KE CU-G95KE / CS-G125KE CU-G125KE (ii) When indoor fan speed is lower than Medium.
  • Page 25 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE • Compressor OFF temperature = compressor ON temperature. • The operation frequency changes every 30 seconds. • When the difference of the intake air temperature and Internal setting temperature is -1.5°C or more, compressor will operate at Fh continuously for 3 minutes and then change over to Fhmax.
  • Page 26 S-G95KE CU-G95KE / CS-G125KE CU-G125KE B. Anti Cold Draft Control (i) Indoor Fan Control Indoor fan speed and airflow direction varies in accordance to the indoor heat exchanger temperature as shown below: (a) Manual Fan speed control (Auto Airflow Direction Control) (Manual Airflow Direction Control) (b) Auto Fan speed control (Auto Airflow Direction Control)
  • Page 27 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE (ii) Hot Start • At the start of heating operation, the indoor fan stops and compressor operates at Fhmax frequency 99Hz (CS-G95KE) or 115Hz (CS-G125KE). This is to heat up the indoor heat exchanger in order to avoid cold air discharged.
  • Page 28 S-G95KE CU-G95KE / CS-G125KE CU-G125KE Deice Operation Time Chart • Compressor frequency is set at 40Hz (CU-G95KE) or 49Hz (CU-G125KE) when the deice operation starting signal is generated. • 30 seconds later deice operation starting signal is generated, indoor fan, outdoor fan, 4-way valve are turned off and compressor operates at 40Hz (CU-G95KE) or 49Hz (CU-G125KE) for 30 seconds.
  • Page 29 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE D. Standby Control (a) The purpose of Standby Control is to warm up the compressor when outdoor temperature is low. The standby control will be activated when all of the followings occur. (i) Main power is supplied.
  • Page 30 S-G95KE CU-G95KE / CS-G125KE CU-G125KE Fan Operation This operation is enable the fan operation without compressor running. Timer operation is valid for fan operation. Automatic Operation When the Automatic mode is selected, the operation mode is decided in accordance to remote control setting temperature, intake air temperature and outdoor air temperature.
  • Page 31 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE (c) When setting temperature of remote control is 23°C ~ 26°C. (d) When setting temperature of remote control is 27°C and above. Setting Temp. °C 18 and below 19 - 22 23 - 26 27 and above Note: Base temperature for T1 is 29°C...
  • Page 32 S-G95KE CU-G95KE / CS-G125KE CU-G125KE • When the operation mode is changed over, the value for t1, t2 and t3 are shifted as below: Cooling/Soft dry → Heating: - 2°C Heating → Cooling/Soft dry: + 2°C • When the indoor intake air temperature is lower than 16°C, heating operation is immediately started. •...
  • Page 33 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Indoor Fan Speed Control Voltage Voltage Cooling Heating Speed Supply to Supply to Soft Remarks Remarks DC (V) DC (V) Manual Auto Manual Auto CS-G95KE CS-G125KE • Hot Start Control • Deodorizing control • SLo: Hot Start Control 15.6...
  • Page 34 S-G95KE CU-G95KE / CS-G125KE CU-G125KE (a) Cooling Automatic Fan Speed The Automatic Fan Speed for cooling operation is shown as below: (i) When Automatic Fan Speed is selected (ii) When Automatic Fan Speed and Powerful Mode are selected Note: The Fan Speed will change every 10 seconds and it will be repeated from a to h every 80 seconds. (b) Heating Automatic Fan Speed The Automatic Fan Speed for heating operation is shown below: •...
  • Page 35 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE (c) Cooling Operation at SHi Speed During Cooling operation, Indoor Fan speed is set at SHi when the following conditions occur: • Outside air temperature is 30°C or above • Compressor operates at 50Hz (CU-G95KE) or 70Hz (CU-G125KE) and above •...
  • Page 36 S-G95KE CU-G95KE / CS-G125KE CU-G125KE Airflow Direction A. Vertical Airflow Direction • Vane angle setting Operation Vane angle Heating Airflow direction auto Indoor heat exchanger temperature 33° 70° 15° Airflow direction manual 13° 33° 46° 57° 70° Cooling Airflow direction auto 7°...
  • Page 37 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE (a) Vertical Airflow Direction Manual By pressing the remote control vertical airflow direction setting switch, the vane will move to the indicated angle (1, 2, 3, 4, 5) as shown in the table. When the remote control OFF/ON switch is pressed to stop the unit, the vane will move to the Close position.
  • Page 38 S-G95KE CU-G95KE / CS-G125KE CU-G125KE (b) Manual Horizontal vane angle setting • By pressing the remote control horizontal airflow direction setting switch, the vane will move to the indicated position (1, 2, 3, 4, 5, 6, 7) as shown in the table. •...
  • Page 39 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Powerful Mode Operation When the powerful mode is selected, the internal setting temperature will shift to achieve the setting temperature quickly. (a) Cooling Operation (b) Soft Dry Operation (c) Heating Operation Sleep Mode Operation (a) Cooling Operation / Soft Dry Operation •...
  • Page 40 S-G95KE CU-G95KE / CS-G125KE CU-G125KE (b) Heating Operation • When the sleep button is pressed, the remote control setting temperature will decrease 2°C after 1 hour or when the remote control setting temperature is reached. After another hour, 3°C will be decreased again. •...
  • Page 41 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Power Monitor Display Power Monitor LED lights on when the compressor is in operation. The number of the LED lights on is in accordance to the compressor operating frequency. Model Display A, B A, B, C...
  • Page 42 S-G95KE CU-G95KE / CS-G125KE CU-G125KE 8.2. Protection Protection Control For All Operations a. Time Delay Safety Control • The Compressor is not restarted for 3 minutes after stop of compressor. b. 30 Second Forced Operation • Once the compressor is ON, it will not turn OFF for 30 seconds. However, it is turned off by remote control or Automatic switch.
  • Page 43 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 2. DC Peak Current Control • When the electric circuit to the IPM (power transistor) exceeds the set value, DC 27 ± 4A, the compressor stops. The compressor restarts after 3 minutes. • If within 30 seconds the set value is exceeded again, the compressor will stop for 1 minute. If this condition repeats for 7 times, all indoor and outdoor relays will be turned off;...
  • Page 44 S-G95KE CU-G95KE / CS-G125KE CU-G125KE g. Minimum Frequency Operation Protection • When the compressor operates at less than 31 Hz for 40 minutes, the operating frequency will increase to 31 Hz for 2 minutes. h. Low Frequency Operation Protection Indoor intake air temp. (°C) 30°C or <...
  • Page 45 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Protection Control For Cooling & Soft Dry a. Anti-Freezing Control • When the temperature of the indoor heat exchanger becomes low, the compressor operating frequency is reduced and stopped when the temperature falls to lower than 2°C continuously for 6 minutes. This is to prevent freezing of indoor heat exchanger.
  • Page 46 S-G95KE CU-G95KE / CS-G125KE CU-G125KE C. Anti-Fog Discharge Control • The compressor operating frequency is regulated by operation time to prevent fog discharged from indoor until as shown in the table below. Compressor operating frequency Operation T < 30 50Hz 70Hz Time, T (min) T <...
  • Page 47 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Protection Control For Heating Operation a. Intake Air Temperature Control • When the intake air temperature is 10°C or above and remote control setting fan speed is less than Me , the compressor operates maximum at 71 Hz (CU-G95KE) or 90 Hz (CU-G125KE).

  • Page 48: Operating Instructions

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 9 Operating Instructions 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 ignoring of instructions will cause harm or damage, the seriousness of which is classified as follows: Warning This sign warns of death or serious injury.
  • Page 49 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Operation precautions Warning Insert the power plug Do not operate or stop the Do not damage the power properly. unit by inserting or pulling cord or use an unspecified Heat generated by a loose out the power plug.
  • Page 50 S-G95KE CU-G95KE / CS-G125KE CU-G125KE Caution Do not remove the power Switch off the power supply When cleaning the unit, re- plug by pulling the cord. if the unit is not going to be move the plug. Hold plug when used for a long period of This is to prevent injury due disconnecting the plug from...
  • Page 51 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Name of Each Part for Inverter Aided Air Contioner Indoor unit Air Intake Vent Front Panel Power Supply Cord Air Purifying Auto Operation Filter Button Panel Opener Air Filters Vertical Airflow Signal Receptor Direction Louver Receives signal from the remote control.

  • Page 52: Remote Control

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE Remote control When back cover is open Signal Transmitter Diagnostic Terminals Operation Display To be used by the service Reset points technician only. TEMP Room Temperature Setting Button OFF/ON (Self-illuminating Button) OPEN POWERFUL Signal [B ↔ A] Switch INVERTER OFF/ON Button To be set to A.
  • Page 53 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Preparation (Indoor Unit • Remote Control) Indoor Unit Warning Insert the power supply plug into an electri- cal outlet and open the front panel. Ensure that the power supply plug is securely inserted. A loose plug may cause a fire or an elec- tric shock.
  • Page 54 S-G95KE CU-G95KE / CS-G125KE CU-G125KE Remote control Operating the remote control Batteries The batteries can be used for approximately one The maximum distance at which signals can be year. received is about 10 m. Observe the following when Aim the remote control at the signal receptor on replacing the batteries the room air conditioner when operating.
  • Page 55 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Automatic • Heating • Cooling • Soft Dry • Fan Press MODE to select the desired operation CLOCK AUTO Display MODE AUTO FAN AUTO FAN WIDE/SPOT When pressed, the display changes in this order. AUTO FAN...

  • Page 56: Auto Restart Control

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE Auto Restart Control If there is a power failure, operation will be automatically restarted under the previous operation mode and airflow direction when power is resumed. (When the operation is not stopped by remote control). If you do not want the unit to restart automatically when power is resumed, switch off the power supply.
  • Page 57 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Adjusting Airflow Direction and Fan Speed Proper adjustment of airflow direction and fan speed increases operation effectiveness. To adjust fan speed Press FAN SPEED Button Display Example There are five stages of fan speed in...
  • Page 58 S-G95KE CU-G95KE / CS-G125KE CU-G125KE Louver adjustment range The adjustment range is different for each operation i.e. Heating, Cooling and Soft Dry. (Fig. at left) The angle indicated on the remote control is different from that on the indoor unit. The louver angle automatically changes to prevent About 30°...

  • Page 59: Setting The Timers

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Setting the Timers Set the ON to the time at which you want heating or cooling to begin. Set the OFF to the desired stop time. Use both timers together for maximum comfort and efficiency.
  • Page 60 S-G95KE CU-G95KE / CS-G125KE CU-G125KE When you sleep When you wake up Set the time at which you will go to sleep with the Set the time at which you will wake up with the OFF . ON . This prevent wasting of electricity. You can start the new day at a comfortable temperature.
  • Page 61 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Powerful • Sleep Powerful and Sleep modes are available for Automatic Operation, Heating, Cooling and Soft Dry. Powerful mode operation • Used in winter to warm yourself quickly upon returning home (Heating + Powerful). • Used in summer to cool yourself after a hot bath (Cooling + Powerful).
  • Page 62 S-G95KE CU-G95KE / CS-G125KE CU-G125KE Do not overcool! Adjust your curtains and blinds A difference of 6°C or less between the outdoor and indoor temperatures Adjust curtains and blinds to prevent during cooling is ideal. sunlight from entering the room Anything cooler may harm directly as this may reduce the your health.

  • Page 63: Care And Maintenance

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Care and Maintenance Regular cleaning and servicing will prolong the life of your air conditioner. Caution Before cleaning the air conditioner, set the Power supply to OFF. The high fan speed may cause injury. Do not wash the unit with water.
  • Page 64 S-G95KE CU-G95KE / CS-G125KE CU-G125KE Cleaning the front panel (Must be removed before washing) Caution Stand on a flat surface Do not touch the indoor Do not leave water on the when removing the front unit’s metal portions after panel after cleaning. Dry panel.
  • Page 65 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Care and Maintenance Replacing the air purifying filters (Once every 3 months) Replacing the air purifying filters Do not reuse dirty filters. Consult the nearest authorized dealer. Air purifying filter No. CZ-SFD50N. These filters function effectively for no longer than three months.
  • Page 66 S-G95KE CU-G95KE / CS-G125KE CU-G125KE Caution Do not ignore a damaged installation rack. A damaged rack may fall and cause injury. Consult an authorized dealer. Pre-seasonspection Is the discharge air cold Are the air intake or outlet Are the remote control bat- (warm)? vents obstructed? teries dead?

  • Page 67: Troubleshooting

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Troubleshooting (Before calling your dealer, refer to the checklist) Problem? Check Has a circuit breaker been tripped or a fuse blown? Is the power supply plug disconnected from the outlet? Is the Timer being used correctly (page 14)?

  • Page 68: The Outdoor Unit

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE Problem? Reason At Cooling • Soft Dry (auto Fan Speed) Air will not be discharged for approximately 40 seconds. The unit is designed to prevent tobacco, cooking and body odors from being discharged Air is not together with the cool air.
  • Page 69 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Call the dealer Is There a Problem? immediately Call the dealer immediately if any of the following occurs. Switches or Abnormal noise buttons not during operation. functioning. Water or foreign Water leaking particles in the...

  • Page 70: Helpful Information

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE Helpful Information Remote control fails to function Turn the Power Supply to ON If the remote control fails to function or has been misplaced, carry out auto operation. Auto opera- tion settings are automatic; the temperature can- not be adjusted.
  • Page 71 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Warning 1) This appliance must be earthed. 2) 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.

  • Page 72: Installation Instructions

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 10 Installation Instructions Required tools for Installation Works 1. Phillips screw driver 5. Spanner 9. Gas leak detector 13. Multimeter 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 73 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 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.
  • Page 74 S-G95KE CU-G95KE / CS-G125KE CU-G125KE Attached accessories Indoor/Outdoor unit installation diagram Applicable piping kit CZ-3F5, 7AEN CZ-4F5, 7, 10AN 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.

  • Page 75: Select The Best Location

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 10.2. INDOOR UNIT 10.2.1. SELECT THE BEST LOCATION 10.2.3. TO DRILL A HOLE IN THE WALL (Refer to “Select the best location” AND INSTALL A SLEEVE OF section) PIPING 1. Insert the piping sleeve to the hole.
  • Page 76 S-G95KE CU-G95KE / CS-G125KE CU-G125KE 3. For the embedded piping (This can be used for left rear piping and left bottom piping also.)
  • Page 77 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 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. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 × 1.5 mm flexible cord, type designation H05 RN-F or heavier cord.

  • Page 78: Install The Outdoor Unit

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE HOW TO TAKE OUT FRONT GRILLE 10.3. OUTDOOR UNIT Please follow below steps to take out front grille if necessary 10.3.1. SELECT THE BEST LOCATION such as when servicing. (Refer to “Select the best location” 1.

  • Page 79: Evacuation Of The Equipment

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE CUTTING AND FLARING THE PIPING Note: BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE. 1. Please cut using pipe cutter and then remove the burrs. 5. Disconnect the charging hose from the vacuum pump and 2.
  • Page 80 S-G95KE CU-G95KE / CS-G125KE CU-G125KE DISPOSAL OF OUTDOOR UNIT DRAIN WATER CHECK ITEMS • If a drain elbow is used, the unit should be placed on a Is there any gas leakage at flare nut connections? stand which is taller than 3 cm. Has the heat insulation been carried out at flare nut •...

  • Page 81: Servicing Information

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 11 Servicing Information 11.1. Troubleshooting Rated Frequency Operation During troubleshooting and servicing, rated compressor operating frequency must be obtained in order to check the specification and technical data. Below are the methods used to obtain rated compressor operating specification.
  • Page 82 S-G95KE CU-G95KE / CS-G125KE CU-G125KE Troubleshooting Air Conditioner 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.
  • Page 83 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 1. Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Heating Mode Condition of the air conditoner Low Pressure High Pressure Electric current Low Pressure High Pressure Electric current...

  • Page 84: Self Diagnosis Display

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 11.2. Self Diagnosis Display The diagnostic display can be seen on the receiver of the Front Grille. • When an abnormality occurs, the unit automatically stops, and the TIMER LED blinks to indicate a malfunction. At the same time, the type of abnormality will be indicated on the receiver as shown in the diagram below.
  • Page 85 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE Diagnosis Abnormality / Protection control Abnormality Temporary Primary location to verify display Judgement operation • Internal / external cable connections Indoor / outdoor abnormal 1 min after starting communication operation • Indoor / Outdoor PCB •...
  • Page 86 S-G95KE CU-G95KE / CS-G125KE CU-G125KE (a) Current Transformer Defective When the Current Transformer (CT) is an open circuit, total running current is less than 1.88A and the indicated frequency is 53 Hz (CU-G95KE) or 74 Hz (CU-G125KE) or above. If this condition continues for 20 seconds, the abnormality signal is sent from outdoor to indoor after 3 minutes of operation and [H16] is displayed.
  • Page 87 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 11.3. Remote Control a. 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 happens, 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 88: Disassembly Of Parts

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 11.4. Disassembly of Parts a. Indoor Control Board Removal Procedure 1. Remove the Front Grille Fig. 1 Fig. 2 2. Remove the Indoor Control Board Fig. 4 Fig. 3...
  • Page 89 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE a. Removal of Electronic Controller Procedure Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 10...
  • Page 90 S-G95KE CU-G95KE / CS-G125KE CU-G125KE c. Indoor Fan Motor Removal Procedure Fig. 11 Fig. 12 Fig. 13 Fig. 14 Fig. 15...
  • Page 91 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE d. Cross Flow Fan Removal Procedure 1. Remove Discharge Grille Fig. 16 1. Remove Cross Flow Fan Fig. 18 Fig. 17 Fig. 19...
  • Page 92 S-G95KE CU-G95KE / CS-G125KE CU-G125KE d. Outdoor Electronic Controller Removal Procedure • Be save to return the wiring to its original position • There are many high voltage components within the heat sink cover so never touch the interior during operation. Wait at least two minutes after power has been turned off.
  • Page 93 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE f. Propeller Fan Removal Procedure Fig. 24 Fig. 25 f. Outdoor Fan Motor Removal Procedure Fig. 26 Fig. 27 Fig. 26...

  • Page 94: Technical Data

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 12 Technical Data...
  • Page 95 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE...
  • Page 96 S-G95KE CU-G95KE / CS-G125KE CU-G125KE 230V Outdoor Temp. (°C) Indoor wet bulb temp. 17.0°C 2.58 1.96 0.67 2.41 1.88 0.72 2.24 1.80 0.77 2.04 1.71 0.83 19.0°C 2.60 0.73 19.5°C 2.83 2.05 0.68 2.65 1.97 0.73 2.46 1.89 0.78 2.24 1.80 0.85 22.0°C...

  • Page 97: Exploded View

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 13 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.

  • Page 98: Replacement Parts List

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 14 Replacement Parts List <Model: CS-G95KE / CS-G125KE> DESCRIPTION & NAME Q’TY CS-G95KE CS-G125KE REMARKS ← CHASSY COMPLETE CWD50C338 ← FAN MOTOR CWA98244 ← CROSS FLOW FAN CWH02C060 ← BEARING CWH64K007 ← EVAPORATOR CWB30C271 FLARE NUT (1/2”) OR (3/8”) CWT25005 (3/8”) CWT25007 (1/2”) ←...

  • Page 99: Exploded View

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 15 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.

  • Page 100: Replacement Parts List

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 16 Replacement Parts List <Model: CU-G95KE / CU-G125KE> DESCRIPTION & NAME Q’TY CU-G95KE CU-G125KE REMARKS ← CHASSY COMPLETE CWD50K660A FAN MOTOR BRACKET CWD54254 CWD54255 FAN MOTOR CWA95384 CWA95380 ← SCREW - FAN MOTOR CWH55406 COMPRESSOR 2RD132X5BB03 2RD132X5BA03 ←...

  • Page 101: Electronic Parts List

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 17 Electronic Parts List <Model : CWA742328 / CWA742329> SYMBOL DESCRIPTION & NAME PART NO. BUZZER A48040 D1, D2, D4, D5, D7, D8 DIODE A541SS355T D3, D6, D9 DIODE A54D1F60 DIODE BRIDGE A54D3SBA60F1 FUSE1 FUSE...
  • Page 102 S-G95KE CU-G95KE / CS-G125KE CU-G125KE <Model : CWA742343 / CWA742342> SYMBOL DESCRIPTION & NAME PART NO. C-FM CAPACITOR - FM A31735 CURRENT TRANSFORMER A40260 DIODE A54AU02ZV0 D17, D18, D20 DIODE A54RA15-06V3 DIODE A54RA15-10V3 D2, D3, D4, D5, D8 DIODE A54RA22-04V3 DIODE A541SS136T D9 ~ D16...

  • Page 103: Electronic Circuit Diagram

    CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 18 Electronic Circuit Diagram • CS-G95KE • CS-G125KE SCHEMATIC DIAGRAM 1/3 MAIN RECEIVER IC201 (MX-3) CN-RCV1 R201 C201 5.1k 6.3v 2.2µ BUSY R201 (KS) 3300p A52BR9020F CN-RCV2 1.5µ (T) – (MX-3) A52PS442 DISPLAY D102 A54LNK4183B...
  • Page 104 S-G95KE CU-G95KE / CS-G125KE CU-G125KE SCHEMATIC DIAGRAM 2/3 A49AF32102TL 0.01µ 10µ A55DA143XKTX – 100k CLOCK PULSE GENERATION 4.7k A55DC143XKTX 1.5µ CLOCK PULSE A52PST600D 0.01µ – GENERATION RESET SIGNAL GENERATION 4.7k 5.1k 0.022µ 0.1µ 7.5k 1000p 4MHz (27pF X 2) A52A2003GR2 150k 0.01µ...
  • Page 105 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE SCHEMATIC DIAGRAM 3/3 RY-PWR TO OUTDOOR AC 230V 50Hz 102°C THEROMAL FUSE CN-PWR 2 3 4 5 6 7 8 9 10 11 12 13 14 CN-PWR 15 16 TLP371 TRANSMISSION A54D1F68 FUSE1 A52S2581L1KC 3.15A...
  • Page 106 S-G95KE CU-G95KE / CS-G125KE CU-G125KE • CU-G95KE • CU-G125KE SCHEMATIC DIAGRAM 1/3 FUSE OUTDOOR TERMINAL 250V, 20A AC 230V DIODE FOR CU-G123KE ONLY AC18-23V REACTOR DIODE AC230V – REACTOR CAPACITOR – – (WHT) (WHT) RY-PWR A40260 1.65k FAN MOTOR FUSE1 T3 15A L250V C-FM CN-FM...
  • Page 107 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE SCHEMATIC DIAGRAM 2/3 APPROX 280 DCV UN4116 4.7k A54RA22-04 A48367 A5278M05 REGULATOR A54AU02ZV8 270µ TLP521-IGH – (SXE) 10µ 100µ – – 3/4W 470µ – EBR43-02 FUSE2 270µ T3 15A L250V TLP521-IGH – (SXE) 620k 560k...
  • Page 108 S-G95KE CU-G95KE / CS-G125KE CU-G125KE SCHEMATIC DIAGRAM 3/3 Vout (XH3) Vsen CN-MTR 100 ACV CT Vout COMPRESSOR Vsen 100 ACV 1µ CT Vout 630v (ECQE) Vsen 100 ACV CT Vout Vsen CT Vout Vsen CT Vout Vsen 383k Temp. 619k 0.33µ...
  • Page 109 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE...
  • Page 110 S-G95KE CU-G95KE / CS-G125KE CU-G125KE How to use electronic circuit diagram TIMER TABLE <INDOOR> Test mode Name Time (When test point Short-circuited) 4 Way Valve abnormality 4 min. 2.4 sec. Outdoor air temp. for Hz No. decision 30 min. 0 sec. Anti-dew formation control 20 min.
  • Page 111 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE TIMER TABLE <OUTDOOR> Test mode Name Time (When test point Short-circuited) DC PEAK 30 sec. 3 sec. 120 min. 24 sec. Deice detection 80 min. 16 sec. 40 min. 8 sec. 40 min. 8 sec.

  • Page 112: Print Pattern Indoor Unit Printed Circuit Board

    S-G95KE CU-G95KE / CS-G125KE CU-G125KE 18.1. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD...
  • Page 113 CS-G95KE CU-G95KE / CS-G125KE CU-G125KE 18.2. PRINT PATTERN OUTDOOR UNIT PRINTED CIRCUIT BOARDBOTTOM VIEW...
  • Page 114 S-G95KE CU-G95KE / CS-G125KE CU-G125KE [MACC] Printed in Malaysia...

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