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Panasonic CS-W18CKE Service Manual

Air conditioner panasonic cs-w18cke/ cu-w18cke/ cs-w24cke/ cu-w24cke
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  Summary of Contents for Panasonic CS-W18CKE

  • Page 1: Table Of Contents

    Order No. MAC0310029C2 Air Conditioner CS-W18CKE CU-W18CKE CS-W24CKE CU-W24CKE CONTENTS Page Page 1 Features 8.6. Random Auto Restart Control 2 Functions 8.7. Airflow Direction Control 3 Product Specifications 8.8. Delay ON Timer Control 4 Dimensions 8.9. Remote Control Signal Receiving Sound 5 Refrigeration Cycle Diagram 8.10.
  • Page 2: Features

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 11.2. TOOLS FOR INSTALLING/SERVICING REFRIGERANT 19 Electronic Circuit Diagram PIPING 19.1. REMOTE CONTROL 11.3. REFRIGERANT PIPING WORK 11.4. INSTALLATION, TRANSFERRING, SERVICING 19.2. PRINT PATTERNINDOOR UNIT PRINTED CIRCUIT 12 Servicing Information BOARD 12.1. Indoor Electronic Controllers Removal Procedures 12.2.
  • Page 3: Functions

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 2 Functions Remote Control Self illuminating button OFF / ON TEMP. Operation OFF / ON Room Temperature Setting Heating, Cooling, Soft Dry Operation. MODE • Temperature Setting (16°C to 30°C) Operation Mode Selection Automatic Operation •...
  • Page 4: Indoor Unit

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Indoor Unit AUTO OFF / ON Automatic Operation Button Ionizer Control • Press for < 5s to operate Automatic • Ionizer control for generate negative ion operation mode. in discharge air. (Used when the remote control cannot be used.) •...
  • Page 5 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Outdoor Unit Compressor Reverse Rotation Deice Control Protection Control • To prevent frosting at outdoor heat exchanger during Heating Operation. • To protect compressor from reverse rotation when there is an instantaneous power failure. 4-Way Valve Control •...
  • Page 6: Product Specifications

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 3 Product Specifications Unit CS-W18CKE CU-W18CKE Power Source Phase, Voltage, Cycle Single, 230, 50 Hz Cooling Capacity kW (BTU/h) 5.30 (18,100) Heating Capacity kW (BTU/h) 5.55 (18,900) Moisture Removal l/h (Pint/h) 2.9 (6.1) Airflow Method...
  • Page 7 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Unit CS-W18CKE CU-W18CKE Air Circulation Type Cross-flow Fan Propeller Fan Material ASHT-18 Motor Type Transistor (8-poles) Induction (4-poles) Input 53.5 Rated Output Fan Speed Low Cooling; 1,160 Heating; 1,240 Medium Cooling; 1,290 — Heating; 1,290 High Cooling;...
  • Page 8 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Unit CS-W24CKE CU-W24CKE Power Source Phase, Voltage, Cycle Single, 230, 50 Hz Cooling Capacity kW (BTU/h) 7.03 (24,000) Heating Capacity kW (BTU/h) 7.72 (26,300) Moisture Removal l/h (Pint/h) 4.0 (8.5) Airflow Method OUTLET SIDE VIEW...
  • Page 9 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Unit CS-W24CKE CU-W24CKE Air Circulation Type Cross-flow Fan Propeller Fan Material ASHT-18 PC + AES + Glass Fiber 15% Motor Type Transistor (8-poles) Induction (4-poles) Input 53.5 190.0 Rated Output Fan Speed Low Cooling; 1,260 Heating;...
  • Page 10: Dimensions

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 4 Dimensions...
  • Page 11 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE...
  • Page 12: Refrigeration Cycle Diagram

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 5 Refrigeration Cycle Diagram...
  • Page 13: Block Diagram

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 6 Block Diagram...
  • Page 14: Wiring Diagram

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 7 Wiring Diagram...
  • Page 15: Operation Details

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 8 Operation Details 8.1. Indoor Fan Speed Control • • • • Auto Fan Speed Control When set to Auto Fan Speed, the fan speed is adjusted between maximum and minimum setting as shown in the table.
  • Page 16: Cooling Mode Operation

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 8.2. 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 the Remote Control is turned ON.
  • Page 17 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 2. QLo fan speed (Transistor Motor) 3. QLo fan speed (Induction Motor) 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.
  • Page 18 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Cooling Operation Time Diagram Quiet Operation Control (For Cooling Mode or cooling region of Soft Dry Mode) • • • • Purpose of this operation is to provide quite cooling operation compare to normal operation.
  • Page 19 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE • • • • Manual Fan Speed:- − − − − RPM control during Lo cool − − − − RPM control during Hi & Me cool • • • • Auto Fan Speed:- • • • • Quiet Mode Operation will stop if:- −...
  • Page 20: Soft Dry Mode Operation

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 8.3. 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 Lo- speed.
  • Page 21 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Soft Dry Operation Time Diagram Quiet Operation Control • • • • Same as Quiet Operation Control for Cooling Mode operation.
  • Page 22: Heating Mode Operation

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 8.4. Heating Mode Operation • • • • Heating in operation according to Remote Control setting. Time Delay Safety Control • • • • When the compressor is stopped by Power Switch, Remote Control or there is a power failure, it restarts after 3 minutes when the Power Switch, Remote Control is turned ON or the power supply is resumed.
  • Page 23 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Automatic Fan Speed Mode When Automatic Fan Speed is selected at Remote Control during heating operation. • • • • Fan speed rotates in the range of Me → SLo according to the heat exchanger temperature.
  • Page 24 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Heating Operation Time Diagram Deicing Control Deice starts to prevent frosting at outdoor heat exchanger. • • • • Normal Deicing Deice operation detection commences in Heating operation starts or 60 minutes after previous deice operation. If the outdoor piping temperature drops to -4°C for 50 sec.
  • Page 25 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE a) Normal Deicing Time Diagram (b) Overload Deicing Time Diagram...
  • Page 26 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Quiet Operation Control (For Heating Mode) • • • • Purpose of this operation is to provide quite heating operation compare to normal operation. • • • • When the Quiet Mode is set at the remote control, Quiet Mode LED illuminates, the sound level will be automatically decreased 3 dB, against the present sound level operation.
  • Page 27: Automatic Mode Operation

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 8.5. Automatic Mode Operation 1. When the Automatic Mode Operation is selected, the indoor fan operates at SLo fan speed for 25 seconds to sense intake air temperature and determine the 1st operation mode. If indoor intake air temperature is less than 16°C, Heating mode will immediate operate.
  • Page 28: Random Auto Restart Control

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 8.6. Random Auto Restart Control • • • • If there is a power failure during air conditioner operation, operation will be automatically restarted after 3 to 4 minutes when the power is resumed. It will start with previous operation mode and airflow direction.
  • Page 29: Delay On Timer Control

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Horizontal Airflow Direction Auto-Control • • • • When set a Airflow Direction Auto-Control with remote control, the vanes swings left and right as shown in the diagram. • • • • The vanes does not swing when the Indoor Fan Motor stops during operation at 22°...
  • Page 30: Powerful Mode Operation

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 8.10. Powerful Mode Operation Purpose of this operation is to be obtain the setting temperature quickly. 1. Cooling and Soft Dry Mode • • • • When the Powerful Mode is set, the set temperature will be automatically decreased 3°C against the present setting temperature (Lower temperature: 16°C).
  • Page 31: Ionizer Operation

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 8.11. Ionizer Operation Purpose To provide fresh air effect to user by discharging minus Ion to air. Control Condition a. Ionizer Only Operation. 1. When air-conditioner unit is at “OFF” condition (standby) and ION operation button at remote control is pressed.
  • Page 32: Ionizer Operation Case Study

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 3. Ionizer operation status is not memorised by Micon. After OFF, when operation is “ON” again, air-conditioner operates without ionizer operation. However, during Cool mode etc + ionizer operation, if there is a power failure & then power resume, air conditioner shall on at that mode + ionizer operation.
  • Page 33 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Note: 1. 24 times checking: Actual Ion ON for 10s & OFF for 30 min continuously for 24 times. 2. 24 times count will be cleared when either one of the following conditions happen. a) 24 times count over, b) Ionizer cancel if press Ion button or power reset, c) Ion feedback signal is OK.
  • Page 34 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE...
  • Page 35: Operating Instructions

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 9 Operating Instructions...
  • Page 36 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE...
  • Page 37 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE...
  • Page 38 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE...
  • Page 39 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE...
  • Page 40 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE...
  • Page 41 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE...
  • Page 42 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Luminous button: convenient in the dark! 38 / 39 38 / 39...
  • Page 43: Installation Instructions

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 10 Installation Instructions Required tools for Installation Works 1. Philips 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) 55 N.m (5.5 kgf.m)
  • Page 44 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 1. This equipment must be earthed. 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 45 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Attached accessories Example: For W24CK If the unit is installed at a 10m distance, the quantity of additional refrigerant should be 75g...(10 - 7.5)m × 30g/m = Indoor/Outdoor Unit Installation Diagram Applicable piping kit CZ-4F5, 7, 10AN (V18CK, W18CK)
  • Page 46: Indoor Unit

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 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 47 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 3. For the embedded piping (This can be used for left rear piping & left bottom piping also.)
  • Page 48 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 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 3 × 2.5 mm (V18CK, V24CK) or 5 ×...
  • Page 49: Outdoor Unit

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 10.3. OUTDOOR UNIT HOW TO TAKE OUT FRONT GRILLE Please follow the steps below to take out front grille if 10.3.1. SELECT THE BEST LOCATION necessary such as when servicing. (Refer to “Select the best location”...
  • Page 50: Evacuation Of The Equipment

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE CUTTING AND FLARING THE PIPING 1. Please cut using pipe cutter and then remove the burrs. 2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe.
  • Page 51: Connect The Cable To The Outdoor Unit

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 10.3.5. CONNECT THE CABLE TO THE OUTDOOR UNIT 1. Remove the control board cover from the unit by loosening the screw. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 3 × 2.5 mm (V18CK, V24CK) or 5 ×...
  • Page 52: Pipe Insulation

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 10.3.6. PIPE INSULATION EVALUATION OF THE PERFORMANCE • • • • Operate the unit at cooling operation mode for fifteen 1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram.
  • Page 53: Installation And Servicing Air Conditioner Using R410A

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 11 Installation and Servicing Air Conditioner Using R410A 11.1. OUTLINE 11.1.1. About R410A Refrigerant 1. Converting air conditioners to R410A Since it was declared in1974 that chlorofluorocarbons (CFC), hydro chlorofluorocarbons (HCFC) and other substances pose a destructive danger to the ozone layer in the earth’s upper stratosphere (20 to 40 km above the earth), measures have been...
  • Page 54: Tools For Installing/Servicing Refrigerant

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE d. R410A refrigerating machine oil Conventionally, mineral oil or a synthetic oil such as alkylbenzene has been used for R22 refrigerating machine oil. Because of the poor compatibility between R410A and conventional oils like mineral oil, however, there is a tendency for the refrigerating machine oil to collect in the refrigerating cycle.
  • Page 55: R410A Tools

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 11.2.2. R410A Tools 1. Copper tube gauge for clearance adjustment (used when flaring with the conventional flaring tool (clutch type)) • • • • This gauge makes it easy to set the clearance for the copper tube to 1.0-1.5 mm from the clamp bar of the...
  • Page 56 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 5. Charging hose • • • • The pressure resistance of the charging hose has been raised to match the higher pressure of R410A. The hose material has also been changed to suit HFC use, and the size of the fitting has been changed to match the manifold ports.
  • Page 57 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 8. Electronic scale for refrigerant charging • • • • Because of the high pressure and fast vaporizing speed of R410A, the refrigerant cannot be held in a liquid phase inside the charging cylinder when charging is...
  • Page 58: Refrigerant Piping Work

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 11.3. REFRIGERANT PIPING WORK 11.3.1. Piping Materials It is recommended that you use copper and copper alloy jointless pipes with a maximum oil adherence of 40 mg/10m. Do not use pipes that are crushed, deformed, or discolored (especially the inside surface). If these inferior pipes are used, impurities may clog the expansion valves or capillaries.
  • Page 59 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE Table 11 R410A flaring dimensions Nominal Outside Wall thickness A (mm) diameter diameter (mm) R410A flaring Conventional flaring tool (mm) tool, clutch type Clutch type Wing-nut type 6.35 0 - 0.5 1.0 - 1.5 1.5 - 2.0 9.52...
  • Page 60: Installation, Transferring, Servicing

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE b. Copper pipes Use only copper pipes with the thickness given in table 10, and with minimal impurities. Because the surface of the pipe is exposed, you should take special care, and also take measures such as marking the pipes to make sure they are easily distinguished from other piping materials, to prevent mistaken use.
  • Page 61: Transferring (Using New Refrigerant Piping)

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 11.4.2. Transferring (Using New Refrigerant Piping) 1. Removing the unit a. Collecting the refrigerant into the outdoor unit by pumping down The refrigerant can be collected into the outdoor unit (pumping down) by pressing the TEST RUN button, even when the temperature of the room is low.
  • Page 62 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 3. Fully open the handle Lo of the manifold gauge, turn on the power of the vacuum pump and continue the vacuum process for at least one hour. 4. Confirm that the low pressure gauge shows a reading of -0.1 Mpa (-76 cmHg), then fully close the handle Lo, and turn off the vacuum pump.
  • Page 63 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 11.4.6. Brazing As brazing requires sophisticated techniques and experiences, it must be performed by a qualified person. In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to proceed with brazing while letting dry nitrogen gas (N ) flow.
  • Page 64: Servicing Information

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 12 Servicing Information Caution: • • • • Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher. Please use a high temperature soldering iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).
  • Page 65: Cross Flow Fan Indoor And Fan Motor Removal

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 12.2. Cross Flow Fan Indoor and Fan Motor Removal Procedures 1. In order to remove the Cross Flow Fan and Indoor Fan Motor, Control Board need to be taken out by releasing all the connectors as indicated below.
  • Page 66 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 6. Remove the Bearing. (Fig. 9) 7. Remove the screws at the left of the Evaporator. (Fig. 9) Fig. 9 8. Push up the Evaporator and pull out the Cross Flow Fan from shaft. By then, Fan Motor can be taken out. (Fig. 10).
  • Page 67 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE • • • • 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 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 68: Troubleshooting Guide

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 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.
  • Page 69 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 13.1.1. 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 70: Technical Data

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 14 Technical Data...
  • Page 71 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 230V Outdoor Temp. (°C) Indoor wet bulb temp. 17.0°C 5.26 3.99 1.51 4.91 3.82 1.63 4.57 3.67 1.74 4.16 3.49 1.88 19.0°C 5.30 1.65 19.5°C 5.77 4.17 1.54 5.40 4.01 1.66 5.02 3.86 1.77 4.56 3.67...
  • Page 72 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE...
  • Page 73 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE...
  • Page 74: Exploded View

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 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 75: Replacement Parts List

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 16 Replacement Parts List <Model: CS-W18CKE, CS-W24CKE> REF. NO. PART NAME & DESCRIPTION QTY. CS-W18CKE CS-W24CKE REMARKS ← ← ← ← CHASSY COMPLETE CWD50C1293 ← ← ← ← FAN MOTOR CWA981056 ← ← ← ←...
  • Page 76: Exploded View

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 17 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 77: Replacement Parts List

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 18 Replacement Parts List <Model: CU-W18CKE, CU-W24CKE> REF. NO. PART NAME & DESCRIPTION QTY. CU-W18CKE CU-W24CKE REMARKS CHASSY ASS’Y CWD50K515B CWD50K514B ← ← ← ← SOUND PROOF BOARD CWH15223 ← ← ← ← FAN MOTOR BRACKET CWD54237 ←...
  • Page 78: Electronic Circuit Diagram

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 19 Electronic Circuit Diagram • CS-W18CKE CU-W18CKE • CS-W24CKE CU-W24CKE SCHEMATIC DIAGRAM 1/5 ELECTRONIC CONTROL UNIT TEMPERATURE FUSE PC01 0.01 1.82k DEICE (BLU) 1000p (RED) 1000p TO OUTDOOR COIL (4-WAYS VALVE) AC01 (WHT) AC (WHT) HOT 1 (RED)
  • Page 79 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE SCHEMATIC DIAGRAM 2/5 TEST R54 1k Q001 R11 1k BZ01 0.01 R12 1k R35 5.1k 0.01 R10 10k 6.2k 6.2k P50/A8 RY-PWR DRIVE SIGNAL STEPPING P51/A9 MOTOR AUTO OPERATION R13 220 DRIVE TEST RUN P03/NTP3...
  • Page 80 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE SCHEMATIC DIAGRAM 3/5 CN-MAIN 47µ 0.1µ 0.01µ 0.01µ 100µ 0.01µ R03 100Ω R02 20k 0.1µ 510Ω R29 1k 1000p (MB) R07 20k 5.1k 0.022µ 100Ω 150k 4.096 MHz (47pF X 2) IC04 C3EBDG000021 100k 2.2µ...
  • Page 81 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE SCHEMATIC DIAGRAM 4/5 ELECTRONIC CONTROL UNIT R020 F001 D101 R026 R016 CN001 R052 R027 L001 C003 R105 R031 Z001 C005 C002 R017 R051 DB004 C004 C007 C012 L101 R050 ZD002 Q004 C103 R015 R013 R048...
  • Page 82 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE SCHEMATIC DIAGRAM 5/5...
  • Page 83 CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE How to use electronic circuit diagram TIMER TABLE Test Mode Name Time (When test point Remarks Short-circuited) Real Timer 1 hr. 1 min. 10 min. 10 sec. 1 min. 1 sec. Time Delay Safety Control 2 min.
  • Page 84: Remote Control

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 19.1. REMOTE CONTROL...
  • Page 85: Print Patternindoor Unit Printed Circuit

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 19.2. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD TOP VIEW...
  • Page 86: Print Patternindoor Unit Printed Circuit

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 19.3. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD BOTTOM VIEW...
  • Page 87: Print Pattern Outdoor Unit Printed Circuit Board

    CS-W18CKE CU-W18CKE / CS-W24CKE CU-W24CKE 19.4. PRINT PATTERN OUTDOOR UNIT PRINTED CIRCUIT BOARD [MAICO] Printed in Malaysia...

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