Table of Contents
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CONTENTS
CS-C18CKV CU-C18CKV
CS-C24CKV CU-C24CKV
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© 2003 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
Order No. MAC0311039C3
Air Conditioner
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Table of Contents
Troubleshooting
Related Manuals for Panasonic CU-C18CKV
Summary of Contents for Panasonic CU-C18CKV
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Page 1: Table Of Contents
Order No. MAC0311039C3 Air Conditioner CS-C18CKV CU-C18CKV CS-C24CKV CU-C24CKV CONTENTS Page Page 1 Features 8.8. Airflow Direction Control 2 Functions 8.9. Delay ON Timer Control 3 Product Specifications 8.10. Remote Control Signal Receiving Sound 4 Dimensions 8.11. Ionizer Operation 5 Refrigeration Cycle Diagram... -
Page 2: Features
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 13 Troubleshooting Guide 19 Electronic Circuit Diagram 13.1. Refrigeration cycle system 19.1. REMOTE CONTROL 14 Technical Data 19.2. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT 15 Exploded View BOARD 16 Replacement Parts List 19.3. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT... -
Page 3: Functions
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 2 Functions Remote Control Self illuminating button OFF / ON I TEMP. Operation OFF / ON Room Temperature Setting Cooling, Soft Dry Operation. MODE • Temperature Setting (16°C to 30°C) Operation Mode Selection Automatic Operation •... - Page 4 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV Indoor Unit AUTO OFF / ON Automatic Operation Button Random Auto Restart Control • Press for < 5s to operate Automatic • Operation is restarted randomly after operation mode. power failure at previous setting mode.
- Page 5 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV Outdoor Unit Compressor Reverse Rotation Protection Control • To protect compressor from reverse rotation when there is a instantaneous power failure. Overload Protector • Inner protector (C24CKV). • O.L.P. (C18CKV). 60 Secs. Forced Operation Control •...
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Page 6: Product Specifications
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 3 Product Specifications Unit CS-C18CKV CU-C18CKV Power Source Phase, Voltage, Cycle Single, 220, 60 Hz Cooling Capacity kW (BTU/h) 5.30 (18,100) Moisture Removal l/h (Pint/h) 2.9 (6.1) SIDE VIEW TOP VIEW Airflow Method OUTLET INTAKE... - Page 7 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV Unit CS-C18CKV CU-C18CKV Refrigerant (R-22) g (oz) — 1,240 (43.8) Thermostat Electronic Control Mechanical Control Protection Device — O.L.P. Capillary Tube Length — Flow Rate l/min — 20.9 Inner Diameter — Air Filter Material P.P.
- Page 8 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV Unit CS-C24CKV CU-C24CKV Power Source Phase, Voltage, Cycle Single, 220, 60 Hz Cooling Capacity kW (BTU/h) 7.03 (24,000) Moisture Removal l/h (Pint/h) 4.0 (8.5) Airflow Method OUTLET SIDE VIEW TOP VIEW INTAKE Air Volume Indoor Air (Lo) /min (cfm) 13.9 (492)
- Page 9 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV Unit CS-C24CKV CU-C24CKV Capillary Tube Length — 1,170 Flow Rate l/min — 21.1 Inner Diameter — Air Filter Material P.P. — Style Honeycomb Capacity Control Capillary Tube Compressor Capacitor µF, VAC — 60 µF, 370VAC Fan Motor Capacitor µF, VAC...
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Page 10: Dimensions
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 4 Dimensions... - Page 11 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV...
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Page 12: Refrigeration Cycle Diagram
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 5 Refrigeration Cycle Diagram... -
Page 13: Block Diagram
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 6 Block Diagram... - Page 14 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV...
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Page 15: Wiring Diagram
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 7 Wiring Diagram... - Page 16 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV...
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Page 17: Operation Details
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 18: Cooling Mode Operation
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 19 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 20 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 21 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV • • • • Manual Fan Speed:- − − − − RPM control during Lo cool − − − − RPM control during Hi & Me cool • • • • Auto Fan Speed:- • • • • Quiet Mode Operation will stop if:- −...
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Page 22: Soft Dry Mode Operation
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 23 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV Soft Dry Operation Time Diagram Quiet Operation Control • • • • Same as Quiet Operation Control for Cooling Mode operation.
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Page 24: Air Circulation Mode Operation
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 8.4. Air Circulation Mode Operation • • • • Fan operation only. Indoor fan speed selection by remote control and setting refer to Indoor Fan Speed Control. − − − − Manual Fan Speed Follow remote control setting −... -
Page 25: Powerful Mode Operation
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV • • • • The mode judging temperature and standard setting temperature can be increased by 2°C, by open the circuit of JX1 at indoor electronic controller. 8.6. Powerful Mode Operation • • • • Purpose of this operation is to obtain the setting temperature quickly. -
Page 26: Airflow Direction Control
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 8.8. Airflow Direction Control Vertical Airflow Direction Auto-Control • • • • When set an Airflow Direction Auto-Control with remote control, the louver swings up and down as shown in the diagram. • • • • The louver does not swing when the Indoor Fan Motor stops during operation at the upper limit. -
Page 27: Delay On Timer Control
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV Horizontal Airflow Direction manual Control • • • • When the manual Airflow Direction Selection Button is pressed, the automatic airflow is released and the airflow direction vane move left and right in the range shown in the diagram. -
Page 28: Ionizer Operation
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 29 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 30 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 31 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV...
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Page 32: Operating Instructions
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 9 Operating Instructions PRODUCT OVERVIEW Your device can... Air intake Outdoor Unit Cooling Dehumidifying Air circulation Air outlet Piping Filters under front panel, see page 35 Indoor Unit Indicator & Auto operation button Direction louver... - Page 33 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV OPERATION Find on page Press button Automatic Internal Function Room temperature Switch on Select... Automatic PREPARATIONS According to the room temperature the system automatically chooses Set temperature Select... TROUBLE- Cooling SHOOTING Choose the right temperature to be comfortably cool!
- Page 34 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV Press button Air Flow Fan speed Vertical direction Horizontal direction (air volume) Direction / volume Select automatic / manual Select cancel Set time Confirm Timer Set time Confirm ON & OFF Set time Confirm TIMER Operation...
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Page 35: Purifying Filters
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV CARE & CLEANING Filters Soaps Neutral household Benzine / Thinner Scouring Wipe gently detergents powder Indoor Unit Filter cleaning see below Ionizer Front Panel Wash gently... + dry Clean with Open manually Remove Reinstall every 6 months... - Page 36 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV Press button Installation: see enclosed installation PREPARATIONS Plug / breaker instruction! refer page 39 OPEN front panel Remove AIR filters Place PURIFYING filters Place AIR filters CLOSE front Panel Plug in Indoor Unit Year check...
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Page 37: Troubleshooting
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV TROUBLESHOOTING No problem In case of... Abnormal noise during operation Operation delayed for 3 minutes after Self protection procedure successful restart Water / foreign particles have entered the It sounds like water flowing... Caused by refrigerant flow inside... - Page 38 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV SAFETY PRECAUTIONS Before operating, read the safety precautions thoroughly EMERGENCY! Operation Immediately isolate from the mains supply NEVER use the plug to switch on / off (e.g. if there is a smell of burning) Use only for...
- Page 39 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV SAFETY PRECAUTIONS & FEATURES refer page Defects Luminous button: convenient in the dark! Defect / suspicion of defect? —> Attend defects before use! Automatic Operation: indoor temp. is gauged to select the optimum mode Do NOT repair yourself...
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Page 40: Installation Instructions
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 41 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 1. The 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 42 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV Attached accessories Indoor/Outdoor Unit Installation Diagram Applicable piping kit CZ-4F5, 7, 10AN (C18CK, A18CK, RS-C18CK) CZ-52F5, 7, 10AN (C24CK, A24CK, RS-C24CK) SELECT THE BEST LOCATION INDOOR UNIT • • • • There should not be any heat source or steam near the unit.
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Page 43: Indoor Unit
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 44 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 3. For the embedded piping (This can be used for left rear piping & left bottom piping also.)
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Page 45: Connect The Cable To The Indoor Unit
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 (C18CK, C24CK, RS/RU-C18/24CK) or 5 ×... -
Page 46: Outdoor Unit
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV HOW TO TAKE OUT FRONT GRILLE AUTO SWITCH OPERATION Please follow the steps below to take out front grille if The below operations will be performed by pressing the necessary such as when servicing. “AUTO” switch. - Page 47 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV Connecting The Piping To Outdoor Unit Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (located at valve) onto the copper pipe.
- Page 48 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV CAUTION • • • • If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the following measure: • • • • If the leak stops when the piping connections are tightened further, continue working from step 3.
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Page 49: Connect The Cable To The Outdoor Unit
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 10.3.6. 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 × 2.5 mm (C18CK, C24CK, RS/RU-C18/24CK) or 5 ×... -
Page 50: 11 3-Way Valve
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 11 3-way Valve 3-way Valve (Liquid Side) 3-way Valve (Gas Side) Works Shaft Position Service Port Shaft Position Service Port Shipping Closed Closed Closed Close (With valve cap) (With cap) (With valve cap) (With cap) -
Page 51: Air Purging Of The Piping And Indoor Unit
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 11.1. Air Purging of the Piping and Indoor Unit 11.1.1. Air purging Required tools: Hexagonal wrench, adjustable wrench, The air in the indoor unit and in the piping must be purged. If air torque wrenches, wrench to hold the... -
Page 52: Pumping Down
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 11.1.2. Pumping down Procedure: 1. Confirm that both the 3-way valves are set to the open 6. Operate the air conditioner at the cooling cycle and position. stop it when the gauge indicates 0.1 MPa. - Page 53 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 11.1.3. Re-air purging (Re-installation) Procedure: 1. Remove the cap nut from 3-way valves. 5. Check for gas leakage. • • • • Remove the cap nut from 3-way valves after carefully • • • • Check the flare connections for gas leakage.
- Page 54 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 11.1.4. Balance refrigerant of the 3-way valves Procedure: 1. Confirm that both the 3-way valves are set to the open position. 2. Connect the manifold gauge to the gas side (Low side) 3-way valve’s port.
- Page 55 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 11.1.5. Evacuation (No refrigerant in the refrigeration cycle) Procedure: 1. Connect the vacuum pump to the manifold gauge’s centre hose. 2. Evacuation for approximately one hour. • • • • Confirm that the gauge needle has moved toward -0.01 MPa.
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Page 56: Gas Charging
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 11.1.6. Gas charging (After Evacuation) Procedure: 1. Connect the charge hose to the gas charging cylinder. 4. Immediately disconnect the charge hose from the 3-way valve’s service port. • • • • Connect the charge hose which you disconnected from •... -
Page 57: Servicing Information
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 58: Cross Flow Fan And Indoor Fan Motor Removal Procedures
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 12.2. Cross Flow Fan and Indoor 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 59 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 60 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV • • • • 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.
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Page 61: Troubleshooting Guide
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 62: Diagnosis Methods Of A Malfunction Of A Compressor
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 13.1.1. Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Condition of the air conditioner Low Pressure High Pressure Electric current during operation Insufficient refrigerant (gas leakage) Clogged capillary tube or... -
Page 63: Technical Data
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 14 Technical Data... - Page 64 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV...
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Page 65: Exploded View
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 66: Replacement Parts List
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 16 Replacement Parts List <Model: CS-C18CKV / CS-C24CKV> REF. NO. PART NAME & DESCRIPTION QTY. CS-C18CKV CS-C24CKV REMARKS ← ← ← ← CHASSY COMPLETE CWD50C1293 ← ← ← ← FAN MOTOR CWA981056 ← ← ← ←... -
Page 67: Exploded View
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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 68: Replacement Parts List
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 18 Replacement Parts List <Model: CU-C18CKV / CU-C24CKV> REF. NO. PART NAME & DESCRIPTION QTY. CU-C18CKV CU-C24CKV REMARKS CHASSY ASS’Y CWD50K515B CWD50K514B ← ← ← ← SOUND PROOF BOARD CWH15223 FAN MOTOR BRACKET CWD54238 CWD54237 ←... -
Page 69: Electronic Circuit Diagram
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 19 Electronic Circuit Diagram • CS-C18CK CU-C18CK • CS-C24CK CU-C24CK SCHEMATIC DIAGRAM 1/3 ELECTRONIC CONTROL UNIT TEMPERATURE FUSE TEST R54 1k Q001 O.L.P. (C18CK only) R12 1k R35 5.1k BZ01 0.01µ TO OUTDOOR YELLOW AC01... - Page 70 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV SCHEMATIC DIAGRAM 2/3 CN-MAIN R11 1k 0.01µ 47µ 0.1µ 0.01µ 0.01µ R10 10k 100µ 0.01µ R03 100Ω R02 20k 0.1µ 510Ω R29 1k 1000p (MB) P50/A8 RY-PWR DRIVE SIGNAL STEPPING P51/A9 MOTOR AUTO OPERATION R13 220...
- Page 71 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV SCHEMATIC DIAGRAM 3/3 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 72 CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 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.
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Page 73: Remote Control
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 19.1. REMOTE CONTROL... -
Page 74: Print Pattern Indoor Unit Printed Circuit
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 19.2. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD... -
Page 75: Print Pattern Indoor Unit Printed Circuit Board
CS-C18CKV CU-C18CKV / CS-C24CKV CU-C24CKV 19.3. PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD [MAICO] Printed in Malaysia...