Table of Contents
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This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
Indoor Unit
CS-YC12MKF
CS-YC18MKF
CS-YC24MKF
WARNING
© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2011.
Unauthorized copying and distribution is a violation of law.
Order No. PHAAM1103061C3
Air Conditioner
Outdoor Unit
CU-YC12MKF
CU-YC18MKF
CU-YC24MKF
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Table of Contents
Related Manuals for Panasonic CS-YC12MKF
Summary of Contents for Panasonic CS-YC12MKF
- Page 1 © Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2011. Unauthorized copying and distribution is a violation of law.
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Page 2: Table Of Contents
TABLE OF CONTENTS PAGE PAGE 13.2 Remote Control Number switch....42 1. Safety Precautions ..........3 14. Troubleshooting Guide........43 2. Specification ............5 14.1 Refrigeration Cycle System ......43 3. Location of Controls and Components..11 15. Disassembly and Assembly Instructions ..45 Indoor Unit ...........11 Outdoor Unit..........11 15.1 CS-YC12MK .......... -
Page 3: Safety Precautions
1. Safety Precautions • Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing. • Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. •... - Page 4 WARNING 19. During installation, install the refrigerant piping properly before run the compressor. (Operation of compressor without fixing refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.).
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Page 5: Specification
2. Specification Indoor CS-YC12MKF Model Outdoor CU-YC12MKF Performance Test Condition AHAM Phase, Hz Single, 50 Power Supply 3.52 3.54 Capacity BTU/h 12000 12100 kJ/h 12670 12740 Running Current Input Power 1.25k 1.29k 2.82 2.74 Btu/hW 9.60 9.38 Power Factor dB-A... - Page 6 Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) Standard length m (ft) 7.5 (24.6) Length range (min – max) m (ft) 3 ~ 15 (9.8 ~ 49.2) I/D & O/D Height different m (ft) 5 (16.4) Additional Gas Amount g/m (oz/ft) 10 (0.1)
- Page 7 Indoor CS-YC18MKF Model Outdoor CU-YC18MKF Performance Test Condition AHAM Phase, Hz Single, 50 Power Supply 5.28 5.28 Capacity BTU/h 18000 18000 kJ/h 19010 19010 Running Current 10.1 Input Power 2.03k 2.09k 2.60 2.53 Btu/hW 8.87 8.61 Power Factor dB-A 46 / 41 46 / 41 Indoor Noise (H / L) Power Level dB...
- Page 8 Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) Standard length m (ft) 5.0 (16.4) Length range (min – max) m (ft) 3 ~ 15 (9.8 ~ 49.2) I/D & O/D Height different m (ft) 10 (32.8) Additional Gas Amount g/m (oz/ft) 20 (0.2)
- Page 9 Indoor CS-YC24MKF Model Outdoor CU-YC24MKF Performance Test Condition AHAM Phase, Hz Single, 50 Power Supply 7.03 7.03 Capacity BTU/h 24000 24000 kJ/h 25310 25310 Running Current 12.5 12.4 Input Power 2.61k 2.74k 2.69 2.57 Btu/hW 9.20 8.76 Power Factor dB-A 50 / 42 50 / 42 Indoor Noise (H / L)
- Page 10 Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 15.88 (5/8) Standard length m (ft) 5.0 (16.4) Length range (min – max) m (ft) 3 ~ 15 (9.8 ~ 49.2) I/D & O/D Height different m (ft) 10 (32.8) Additional Gas Amount g/m (oz/ft) 30 (0.3)
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Page 11: Location Of Controls And Components
3. Location of Controls and Components Indoor Unit Outdoor Unit Remote Control... -
Page 12: Dimensions
4. Dimensions Indoor Unit & Remote Control 4.1.1 CS-YC12MK... - Page 13 4.1.2 CS-YC18MK CS-YC24MK...
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Page 14: Outdoor Unit
Outdoor Unit 4.2.1 CU-YC12MK CU-YC18MK 4.2.2 CU-YC24MK... -
Page 15: Refrigeration Cycle Diagram
5. Refrigeration Cycle Diagram... -
Page 16: Block Diagram
6. Block Diagram CS-YC12MK... -
Page 17: Cs-Yc18Mk Cs-Yc24Mk
CS-YC18MK CS-YC24MK... -
Page 18: Wiring Connection Diagram
7. Wiring Connection Diagram CS-YC12MK CU-YC12MK GROUNDING ELECTRONIC CONTROLLER TERMINAL (MAIN) COMPLETE UP DOWN LOUVER MOTOR RY-PWR TERMINAL SINGLE BOARD FUSE301 PHASE POWER T3.15A L250V SUPPLY SUCTION TEMP. SENSOR (THERMISTOR) AC303 (WHT) SENSOR COMPLETE TEMP. PIPING TEMP. SENSOR (THERMISTOR) FUSE 102°C (250V 3A) GROUNDING... -
Page 19: Cs-Yc18Mk Cu-Yc18Mk
CS-YC18MK CU-YC18MK GROUNDING ELECTRONIC CONTROLLER TERMINAL (MAIN) COMPLETE UP DOWN TERMINAL LOUVER MOTOR SINGLE BOARD PHASE RY-PWR POWER FUSE301 SUPPLY T3.15A L250V SUCTION TEMP. SENSOR (THERMISTOR) AC303 (WHT) SENSOR COMPLETE TEMP. FUSE PIPING TEMP. SENSOR (THERMISTOR) 102°C (250V 3A) G301 (GRN) GROUNDING ELECTRONIC CONTROLLER... -
Page 20: Cs-Yc24Mk Cu-Yc24Mk
CS-YC24MK CU-YC24MK GROUNDING ELECTRONIC CONTROLLER TERMINAL (MAIN) COMPLETE UP DOWN TERMINAL LOUVER MOTOR SINGLE BOARD PHASE RY-PWR POWER FUSE301 SUPPLY T3.15A L250V SUCTION TEMP. SENSOR (THERMISTOR) AC303 (WHT) SENSOR COMPLETE TEMP. FUSE PIPING TEMP. SENSOR (THERMISTOR) 102°C (250V 3A) G301 (GRN) ELECTRONIC GROUNDING CONTROLLER... -
Page 21: Electronic Circuit Diagram
8. Electronic Circuit Diagram CS-YC12MK... -
Page 22: Cs-Yc18Mk Cs-Yc24Mk
CS-YC18MK CS-YC24MK... -
Page 23: Printed Circuit Board
9. Printed Circuit Board Indoor Unit 9.1.1 Main Printed Circuit Board 9.1.1.1 CS-YC12MKF... - Page 24 9.1.1.2 CS-YC18MKF CS-YC24MKF...
- Page 25 9.1.2 Indicator Printed Circuit Board...
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Page 26: Installation Instruction
10. Installation Instruction 10.1 Select the Best Location 10.1.1 Indoor Unit 10.1.3 Indoor/Outdoor Unit Installation • Do not install the unit in excessive oil fume area Diagram such as kitchen, workshop and etc. • There should not be any heat source or steam near the unit. -
Page 27: Indoor Unit
10.2 Indoor Unit 10.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent it from the vibration. Dimension Model YC12*** 485 mm 82 mm 165 mm 158 mm 43 mm 95 mm YC18***, 585 mm 83 mm 165 mm... - Page 28 10.2.3 Indoor Unit Installation 10.2.3.1 For the right rear piping 10.2.3.2 For the right and right bottom piping 10.2.3.3 For the embedded piping (This can be used for left rear piping and bottom piping also.)
- Page 29 10.2.4 Connect the Cable to the Indoor Unit Install the indoor unit on the installing holder that mounted on the wall. Remove front grille by loosening the screw. Remove metal cover without damaging alluminium foil. Cable connection to the power supply through Isolating Devices (Disconnecting means).
- Page 30 Remove the tapes and connect the power supply cord and connecting cable between indoor unit and outdoor unit according to the diagram below. Secure the power supply cord and connection cable onto the control board with the holder. 10 Fix back metal cover to original position without damaging alluminium foil. Ensure metal cover is fitted at both end.
- Page 31 10.2.5.1 Cutting and flaring the piping Please cut using pipe cutter and then remove the burrs. Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe. Please make flare after inserting the flare nut onto the copper pipes.
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Page 32: Outdoor Unit
10.3 Outdoor Unit 10.3.1 Install the Outdoor Unit • After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10mm). When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails. - Page 33 FOR ENVIRONMENT PROTECTION, MANUFACTURER STRONGLY RECOMMENDS TO USE EVACUATION METHOD. 10.3.3 Evacuation of the Equipment Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. Be sure to connect the end of the charging hose with the push pin to the service port. Connect the center hose of the charging set to a vacuum pump.
- Page 34 10.3.4 Air Purging of the Piping and Indoor The remaining air in the Refrigerant cycle which contains moisture may cause malfunction on the compressor. Remove the caps from the 2-way and 3-way valves. Remove the service-port cap from the 3-way valves. To open the valve, turn the valve stem of 2-way valve counter-clockwise approx.
- Page 35 10.3.6 Piping Insulation Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E-FOAM with thickness 6mm or above.
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Page 36: Operation And Control
11. Operation and Control 11.1 Cooling Operation • Cooling operation can be set using remote control. • This operation is applied to cool down the room temperature reaches the setting temperature set on the remote control. • The remote control setting temperature, which takes the reading of intake air temperature sensor, can be adjusted from 16°C to 30°C. -
Page 37: Indoor Fan Speed Control
11.2 Indoor Fan Speed Control • Indoor Fan Speed can be set using remote control. 11.2.1 Fan Speed Rotation Chart Speed Fan Speed (rpm) YC12MK YC18MK YC24MK 1120 1280 1390 1200 1240 H Lo 1180 1210 C Lo 1120 1150 S Lo 11.2.2 Automatic Fan Speed Control •... -
Page 38: Outdoor Fan Speed Control
11.2.3 Manual Fan Speed Control • Manual fan speed adjustment can be carried out by using the Fan Speed selection button at the remote control. • There are 3 types of fan speed settings: Lo, Me, Hi. 11.2.4 Indoor Fan Motor RPM Abnormal Control •... -
Page 39: Horizontal Airflow Direction Control
11.5 Horizontal Airflow Direction Control • The horizontal airflow direction louvers can be adjusted manually by hand. 11.6 Timer Control 11.6.1 To Set the Timer • To turn ON the unit at a preset time, set the timer while the unit is OFF (the operation will start 15 minutes early before the preset time). -
Page 40: Protection Control
12. Protection Control 12.1 Restart Control (Time Delay Safety Control) • When the thermo-off temperature (temperature which compressor stops to operate) is reached during: - Cooling operation - the compressor stops for 3 minutes (minimum) before resume operation. • If the operation is stopped by the remote control, the compressor will not turn on within 3 minutes from the moment operation stop, although the unit is turn on again within the period. -
Page 41: Compressor Reverse Rotation Protection Control
12.6 Compressor Reverse Rotation Protection Control • If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and indoor heat exchanger is 2.5°C or less for continuous 2 minutes, compressor will stop and restart automatically. -
Page 42: Servicing Mode
13. Servicing Mode 13.1 Auto OFF/ON Button OPERATION MODE The operation will be activated immediately once the AUTO OFF/ON button is pressed. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunctioned. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE) The Test Run operation will be activated if the Auto OFF/ON button is pressed continuously for more than 5 seconds. -
Page 43: Troubleshooting Guide
14. Troubleshooting Guide 14.1 Refrigeration Cycle System In order to diagnose malfunctions, ensure the air conditioner is free from electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan. The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table to the right. - Page 44 14.1.1 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 Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient compression...
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Page 45: Disassembly And Assembly Instructions
15. Disassembly and Assembly Instructions WARNING High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 15.1 CS-YC12MK 15.1.1 Small Air Filter, Indoor Electronic Controllers and Control Board Removal Procedures... - Page 48 15.1.2 Indoor Fan Motor and Cross Flow Fan Removal Procedures...
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Page 50: Cs-Yc18Mk Cs-Yc24Mk
15.2 CS-YC18MK CS-YC24MK 15.2.1 Small Air Filter, Indoor Electronic Controllers and Control Board Removal Procedures... - Page 53 15.2.2 To Remove Cross Flow Fan and Indoor Fan Motor...
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Page 55: Technical Data
16. Technical Data 16.1 Thermostat Characteristics Cooling... -
Page 56: Operation Characteristics
16.2 Operation Characteristics 16.2.1 CS-YC12MKF CU-YC12MKF • Cooling Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 7.5m... - Page 57 • Piping Length Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Outdoor temperature: 35°C (DBT), 24°C (WBT) Piping length: 7.5m...
- Page 58 16.2.2 CS-YC18MKF CU-YC18MKF • Cooling Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5.0m...
- Page 59 • Piping Length Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Outdoor temperature: 35°C (DBT), 24°C (WBT) Piping length: 5.0m...
- Page 60 16.2.3 CS-YC24MKF CU-YC24MKF • Cooling Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Piping length: 5.0m...
- Page 61 • Piping Length Characteristic Room temperature: 27°C (DBT), 19°C (WBT) Operation condition: High fan speed Outdoor temperature: 35°C (DBT), 24°C (WBT) Piping length: 5.0m...
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Page 62: Exploded View And Replacement Parts List
17. Exploded View and Replacement Parts List 17.1 Indoor Unit 17.1.1 CS-YC12MKF 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 63 REF. NO. PART NAME & DESCRIPTION QTY. CS-YC12MKF REMARK CHASSIS COMPLETE CWD50C1653 FAN MOTOR CWA921447 CROSS FLOW FAN COMPLETE CWH02C1076 SCREW - CROSS FLOW FAN CWH551146 BEARING ASS’Y CWH64K007 EVAPORATOR CWB30C3328 FLARE NUT (LIQUID) CWT251026 FLARE NUT (GAS) CWT251062 HOLDER SENSOR...
- Page 64 17.1.2 CS-YC18MKF CS-YC24MKF 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 65 REF. NO. PART NAME & DESCRIPTION QTY. CS-YC18MKF CS-YC24MKF REMARK CHASSIS COMPLETE CWD50C1654 ← FAN MOTOR ARW7628AC ARW7627AC CROSS FLOW FAN COMPLETE CWH02C1077 ← SCREW - CROSS FLOW FAN CWH551146 ← BEARING ASS’Y CWH64K007 ← EVAPORATOR CWB30C3126 CWB30C3125 FLARE NUT (LIQUID) CWT251026 ←...
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Page 66: Outdoor Unit
17.2 Outdoor Unit 17.2.1 CU-YC12MKF 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 67 REF. NO. PART NAME & DESCRIPTION CU-YC12MKF REMARK CHASSIS ASS’Y CWD50K2088 SOUND PROOF MATERIAL CWG302110 FAN MOTOR BRACKET CWD541030 SCREW - FAN MOTOR BRACKET CWH551217 FAN MOTOR CWA951676 SCREW - FAN MOTOR MOUNT CWH55406J PROPELLER FAN ASS’Y CWH03K1006 NUT - PROPELLER FAN CWH56053J COMPRESSOR 2KS210D5AA06...
- Page 68 17.2.2 CU-YC18MKF 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 69 REF. NO. PART NAME & DESCRIPTION CU-YC18MKF REMARK CHASSIS ASS’Y CWD50K2088 FAN MOTOR BRACKET CWD541030B SCREW - FAN MOTOR BRACKET CWH551217 FAN MOTOR CWA951676 SCREW - FAN MOTOR MOUNT CWH55406J PROPELLER FAN ASS’Y CWH03K1006 NUT - PROPELLER FAN CWH56053J COMPRESSOR 2KS324D5AB06 ANTI - VIBRATION BUSHING CWH50055...
- Page 70 17.2.3 CU-YC24MKF 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 71 REF. NO. PART NAME & DESCRIPTION CU-YC24MKF REMARK CHASSIS ASS’Y CWD52K1248 SOUND PROOF MATERIAL CWG302221 FAN MOTOR BRACKET CWD541154 SCREW - FAN MOTOR BRACKET CWH551217 FAN MOTOR CWA951689 SCREW - FAN MOTOR MOUNT CWH55252J PROPELLER FAN ASS’Y CWH03K1017 NUT - PROPELLER FAN CWH561038J COMPRESSOR 2JS438D3CB04...