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Panasonic CS-W12CTP Service Manual

Room air conditioner
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  Summary of Contents for Panasonic CS-W12CTP

  • Page 1: Table Of Contents

    Order No. MAC0305008C2 Room Air Conditioner CS-W12CTP CU-W12CTP5 CS-W18CTP CU-W18CTP5 CS-W24CTP CU-W24CTP5 CONTENTS Page Page 1 Functions 7.5. Sleep Mode Auto Operation 2 Product Specifications 7.6. Random Auto Restart Control 3 Dimensions 7.7. Delay ON Timer Control 4 Refrigeration Cycle Diagram 7.8.
  • Page 2 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 9.2. INDOOR UNIT 14 Exploded View 9.3. OUTDOOR UNIT 15 Replacement Parts List 10 Installation and Servicing Air Conditioner Using R410A 16 Exploded View 10.1. OUTLINE 17 Replacement Parts List 10.2. TOOL FOR INSTALLING / SERVICING REFRIGERANT...
  • Page 3: Functions

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 1 Functions Remote Control Self illuminating button OFF / ON I TEMP. Operation OFF / ON Room Temperature Setting Heating, Cooling, Soft Dry Operation. • Temperature Setting (16°C to 30°C) MODE Operation Mode Selection Automatic Operation •...
  • Page 4 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Indoor Unit AUTO OFF / ON Automatic Operation Button Indoor Fan Speed Control • Press for < 5s to operate Automatic • High, Medium and Low. operation mode. • Automatic Fan Speed Mode (Used when the remote control cannot be used.)
  • Page 5 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Outdoor Unit CU-W12CTP5 CU-W18CTP5 CU-W24CTP5 Compressor Reverse Rotation Deice Control Protection Control • To prevent frosting at outdoor heat ex- changer. (Only for Heating Operation) • To protect compressor from reverse rotation when there is a instantaneous power failure.
  • Page 6: Product Specifications

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 2 Product Specifications Unit CS-W12CTP CU-W12CTP5 Power Source Phase Single Cycle Cooling Capacity 3.60 Btu/h 12,300 kcal/h 3,100 Heating Capacity 3.95 Btu/h 13,500 kcal/h 3,400 Moisture Removal Pint/h Airflow Method OUTLET SIDE VIEW...
  • Page 7 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Unit CS-W12CTP CU-W12CTP5 Heat Exchanger Description Evaporator Condenser Tube material Copper Copper Fin material Aluminium Aluminium (Blue Coated) Fin Type Louver Fin Corrugated Fin Row / Stage (Plate fin configuration, forced draft) 2 ×...
  • Page 8 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Unit CS-W18CTP CU-W18CTP5 Power Source Phase Single Cycle Cooling Capacity 5.20 Btu/h 17,700 kcal/h 4,470 Heating Capacity 5.80 Btu/h 19,800 kcal/h 4,990 Moisture Removal Pint/h Airflow Method OUTLET SIDE VIEW TOP VIEW...
  • Page 9 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Unit CS-W18CTP CU-W18CTP5 Heat Exchanger Description Evaporator Condenser Tube material Copper Copper Fin material Aluminium Aluminium (Blue Coated) Fin Type Louver Fin Corrugated Fin Row / Stage (Plate fin configuration, forced draft) 2 ×...
  • Page 10 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Unit CS-W24CTP CU-W24CTP5 Power Source Phase Single Cycle Cooling Capacity 6.90 Btu/h 23,500 kcal/h 5,930 Heating Capacity 7.65 Btu/h 26,100 kcal/h 6,580 Moisture Removal Pint/h Airflow Method OUTLET SIDE VIEW TOP VIEW...
  • Page 11 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Unit CS-W24CTP CU-W24CTP5 Heat Exchanger Description Evaporator Condenser Tube material Copper Copper Fin material Aluminium Aluminium (Blue Coated) Fin Type Louver Fin Corrugated Fin Row / Stage (Plate fin configuration, forced draft) 2 ×...
  • Page 12: Dimensions

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 3 Dimensions...
  • Page 13 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 14: Refrigeration Cycle Diagram

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 4 Refrigeration Cycle Diagram...
  • Page 15 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 16: Block Diagram

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 5 Block Diagram...
  • Page 17 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 18: Wiring Diagram

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 6 Wiring Diagram...
  • Page 19 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 20: Operation Details

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 7 Operation Details 7.1. 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.
  • Page 21 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Compressor Protection Control • • • • After the compressor starts for 50 seconds but the outdoor fan motor is still OFF, the compressor will stop and restart automatically. (Time Delay Safety Control is valid).
  • Page 22 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Cooling Operation Time Diagram...
  • Page 23: Soft Dry Mode Operation

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 7.2. 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.
  • Page 24 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Soft Dry Operation Time Diagram...
  • Page 25: Heating Mode Operation

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 7.3. Heating Mode Operation 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.
  • Page 26 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 4-way Valve Control • • • • 4-way valve always ON during Heating operation. (Except Deicing operation) • • • • When the unit is switched to “OFF” during Heating operation, 4-way valve stay at Heating position for 5 minutes.
  • Page 27 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 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 28 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Deicing Control 1) W12CT 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.
  • Page 29 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Normal Deicing Time Diagram Overload Deicing Time Diagram...
  • Page 30 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 2) W18CT, W24CT 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 31: Automatic Mode Operation

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 (b) Overload Deicing Time Diagram 7.4. 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.
  • Page 32: Sleep Mode Auto Operation

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Present Judgement Next Mode Mode Cooling Soft Dry Heating Cooling 23°C Cooling (Judgement: Not Applicable (Judgement: Heating 23°C & Above) Below 23°C) Soft Dry 23°C Soft Dry Not Applicable (Judgement: (Judgement: Heating 23°C &...
  • Page 33: Random Auto Restart Control

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Heating Operation Purpose is to obtain a comfortable room temperature while sleeping. When you press the SLEEP Mode, the following movement will start to avoid overheating. • • • • Sleep shift operation starts, when the room temperature reaches the setting temperature or after 1 hour of operation.
  • Page 34: Indoor Fan Speed Control

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 7.9. Indoor Fan Speed Control Auto Fan Speed Control When set to Auto Fan Speed, the fan speed is shifted automatically between Stop to SHi depend on each operation as shown below.
  • Page 35: Soft Starter (Applicable Only For Australia Market)

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 7.11. Soft starter (Applicable only for Australia market) A. Purpose To reduce starting current lower than 45A. B. Basic Operation (W18CTP, W24CTP) 1. When indoor relay is turn ON, starting capacitor will be turn ON through RY-C for ~ 1 second. After that reactor will be turn OFF through RY-L and in the same time RY-C will turn OFF causes starting capacitor to be OFF.
  • Page 36: Operating Instructions

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 8 Operating Instructions page 38...
  • Page 37 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 38 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 39 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 40 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 41 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 42 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 43 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 44: Installation Instructions

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 9 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)
  • Page 45 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 • • • • When connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use only R410A materials.
  • Page 46 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 Attached accessories Indoor/Outdoor Unit Installation Diagram 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 47: Indoor Unit

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 9.2. INDOOR UNIT 9.2.1. SELECT THE BEST LOCATION (Refer to “Select the best location” section) 9.2.2. HOW TO FIX INSTALLATION PARTS Installation on the ceiling • • • • Measure and mark the position for the Suspension bolts and the piping hole.
  • Page 48 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 9.2.3. TO DRILL A HOLE IN THE WALL AND INSTALL A SLEEVE OF PIPING 1. Insert the piping sleeve to the hole. 2. Fix the bushing to the sleeve. 3. Cut the sleeve until it extrudes about 15 mm from the wall.
  • Page 49: Connect The Cable To The Indoor Unit

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 9.2.5. CONNECT THE CABLE TO THE INDOOR UNIT 1. Open the control box at the bottom end of the chassis and connect the cable through the hole. • • • • Connect the wires to the terminals on the control board individually according to the outdoor unit connection.
  • Page 50: Outdoor Unit

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 9.3. OUTDOOR UNIT 9.3.1. SELECT THE BEST LOCATION (Refer to “Select the best location” section) 9.3.2. INSTALL THE OUTDOOR UNIT At the best location, start installation according to Indoor- Outdoor Unit Installation Diagram.
  • Page 51 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 9.3.4. (a) EVACUATION OF THE EQUIPMENT (FOR EUROPE & OCEANIA DESTINATION) WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure.
  • Page 52 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 2) Air Purging The air which contains a moisture is remaining in the Refrigeration cycle may cause a malfunction on the Compressor. 1. To purge the air, push the pin on the Gas side 3-way valve for three seconds using with a Hexagonal wrench and set it free for one minute.
  • Page 53: Connect The Cable To The Outdoor Unit

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 9.3.6. 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 x 1.5mm (V12CT) or 5 x 1.5mm...
  • Page 54 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 CHECK THE DRAINAGE • • • • Connect the drain hose, as described below. • • • • Pour water into the drain pan to ensure that water is drained smoothly through the drain hose.
  • Page 55 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 CHECK ITEMS Is there any gas leakage at flare nut connections? Is the cooling operation normal? Has the heat insulation been carried out at flare nut Is the indoor unit properly secured to the installation plate?
  • Page 56: Installation And Servicing Air Conditioner Using R410A

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 10 Installation and Servicing Air Conditioner Using R410A 10.1. OUTLINE 10.1.1. 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 57: Tool For Installing / Servicing Refrigerant

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 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 58: R410A Tools

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 10.2.2. R410A Tools 1. Cooper 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 59 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 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 60 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 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 61: Refrigerant Piping Work

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 10.3. REFRIGERANT PIPING WORK 10.3.1. 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 used 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 62 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 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...
  • Page 63: Installation, Transferring, Servicing

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 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 64 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 10.4.2. 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 65 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 5. Set the refrigerant cylinder onto the electronic scale, then correct the hose the cylinder and to the connection port for the electronic scale. (1)(2) Precaution: Be sure to set up the cylinder for liquid charging. If you use a cylinder equipped with a siphon tube, you can charge the liquid without having to turn the cylinder around.
  • Page 66 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 <Brazing Method for Preventing Oxidation> 1. Attach a reducing valve to the nitrogen gas cylinder. 2. Attach a reducing valve to the nitrogen gas cylinder. 3. Apply a seal onto the clearance between the piping and inserted pipe for the nitrogen gas in order to prevent the nitrogen gas from flowing backward.
  • Page 67: Servicing Information

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 11 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.
  • Page 68: Troubleshooting Guide

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 12 Troubleshooting Guide 12.1. 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-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 12.1.1. 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...
  • Page 70: Technical Data

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 13 Technical Data...
  • Page 71 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 230V Outdoor Temp. (°C) Indoor wet bulb temp. 17.0°C 3.57 2.71 1.05 3.34 2.60 1.13 3.10 2.49 1.21 2.82 2.37 1.31 19.0°C 3.60 1.15 19.5°C 3.92 2.83 1.07 3.66 2.72 1.15 3.41 2.62...
  • Page 72 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 73 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5...
  • Page 74: Exploded View

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 14 Exploded View...
  • Page 75: Replacement Parts List

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 15 Replacement Parts List <Model: CS-W12CTP / CS-W18CTP / CS-W24CTP> REF NO. DESCRIPTION & NAME QTY. CS-W12CTP CS-W18CTP CS-W24CTP REMARKS ← ← ← ← ← ← ← ← CHASSY COMPLETE CWD50C1258 ← ← ← ←...
  • Page 76: Exploded View

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 16 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-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 17 Replacement Parts List <Model: CU-W12CTP5> REF. NO. PART NAME & DESCRIPTION QTY. CU-W12CTP5 REMARKS CHASSY ASS’Y CWD50K2074 SOUND PROOF MATERIAL CWG302088 FAN MOTOR BRACKET CWD541030 SCREW - FAN MOTOR BRACKET CWH551059...
  • Page 78: Exploded View

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 18 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 79: Replacement Parts List

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 19 Replacement Parts List <Model: CU-W18CTP5 / CU-W24CTP5> REF. NO. PART NAME & DESCRIPTION QTY. CU-W18CTP5 CU-W24CTP5 REMARKS CHASSY ASS’Y CWD50K515B CWD50K514B ← ← ← ← SOUND PROOF BOARD CWH15223 ← ← ← ←...
  • Page 80: Electronic Circuit Diagram

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 20 Electronic Circuit Diagram • CS-W12CTP / CU-W12CTP5 SCHEMATIC DIAGRAM 1/4 CN-RMT 100k 0.01µ 0.01µ 0.01µ (PH9) CN-DISP R103 100k IC101 R102 C101 22µF AUTO CN-DISP 4.7k (PH9) SW101 0.01µ AIR SWING...
  • Page 81 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 SCHEMATIC DIAGRAM 2/4 0.01µ 0.1µ 0.1µ TEST 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 VREF+ IC01 OSC2 MN101C309 OSC1 MM0D SBO0 SBI0 SBT0...
  • Page 82 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 SCHEMATIC DIAGRAM 3/4 1.82k 0.1µ 47k2W PC02 0.01µ 47k2W 10µ CT01 SSR02 ZNR02 100µ 0.1µ SSR02 ZD01 6.2k 4.7k 10µ DB01 IC03 IC04 – 220µ 470µ 3300µ 0.1µ 39k/2W PC01 3.9k 100k 4.7k...
  • Page 83 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 SCHEMATIC DIAGRAM 4/4 PIPE TEMP. SENSOR (20k 3950) INDOOR AIR TEMP. SENSOR UNIT CN-TH TERMINAL (15k 3950) (PH4) FM(BLU) HOT(RED) AC 220-240V 50/60 HZ AC(WHT) RY-PWR OUTDOOR UNIT TERMINAL FUSE 250V 0.047µ...
  • Page 84 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 • CS-W18CTP / CU-W18CTP5 • CS-W24CTP / CU-W24CTP5 SCHEMATIC DIAGRAM 1/4 CN-RMT 100k 0.01 0.01 0.01 (PH9) CN-DISP R103 100k IC101 R102 C101 22 F AUTO CN-DISP 4.7k (PH9) SW101 0.01 AIR SWING...
  • Page 85 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 SCHEMATIC DIAGRAM 2/4 0.01 TEST 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 VREF+ IC01 OSC2 MN101C309 OSC1 MM0D SBO0 SBI0 SBT0...
  • Page 86 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 SCHEMATIC DIAGRAM 3/4 1.82k 47k2W PC02 0.01 47k2W CT01 SSR02 ZNR02 SSR02 ZD01 6.2k 4.7k DB01 IC03 IC04 — 3300 39k/2W PC01 3.9k 100k 4.7k 6.2k SSR01 4.7k (PH3) 0.01 CN-FB...
  • Page 87 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 SCHEMATIC DIAGRAM 4/4 PIPE TEMP. SENSOR (20k 3950) INDOOR AIR TEMP. SENSOR UNIT CN-TH (15k 3950) TERMINAL (PH4) FM(BLU) HOT(RED) AC 220-240V 50/60 HZ AC(WHT) RY-PWR OUTDOOR UNIT TERMINAL FUSE 250V BLK or BLU...
  • Page 88 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 How to use electronic circuit diagram...
  • Page 89 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 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. 58 sec.
  • Page 90: Remote Control

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 20.1. REMOTE CONTROL...
  • Page 91: Print Patternindoor Unit Printed Circuit

    CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 20.2. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD...
  • Page 92 CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5 [MAICO] Printed in Malaysia...

This manual is also suitable for:

Cs-w18ctpCu-w18ctp5Cu-w12ctp5Cs-w24ctpCu-w24ctp5