Table of Contents
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Service Manual
CS-A120TE / CU-A120TE
CS-A180TE / CU-A180TE
CS-A240TE / CU-A240TE
Contents
Functions ........................................................... 1 ~ 2
Product Specifications ....................................... 3 ~ 8
Dimensions ...................................................... 9 ~ 10
Refrigeration Cycle Diagram .................................. 11
Block Diagram ................................................ 12~ 13
Wiring Diagram .............................................. 14 ~ 15
Operation Details ........................................... 16 ~ 18
Servicing Information ............................................. 19
Troubleshooting Guide .................................. 20 ~ 21
Technical Data ....................................................... 22
Exploded View ................................................. 23, 25
Replacement Parts List .................................... 24, 26
Electronic Parts List ............................................... 27
© 1997 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T)
All rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
ORDER NO. MAC9710021C2
Room Air Conditioners
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Table of Contents
Troubleshooting
Related Manuals for Panasonic CS-A120TE
Summary of Contents for Panasonic CS-A120TE
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Page 1: Table Of Contents
ORDER NO. MAC9710021C2 Service Manual Room Air Conditioners CS-A120TE / CU-A120TE CS-A180TE / CU-A180TE CS-A240TE / CU-A240TE Contents Functions ............1 ~ 2 Product Specifications ........3 ~ 8 Dimensions ............9 ~ 10 Refrigeration Cycle Diagram ........11 Block Diagram ..........12~ 13 Wiring Diagram .......... - Page 2 WARNING 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.
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Page 3: Functions
CS-A120TE Functions Remote-control Transmitter Indoor Unit Remote Control Power Switch OFF/ON Operation START/STOP s d f # Sensing The Room Temperature Operation Mode Selection Room Temperature Sensor (thermistor) s Automatic Operation Mode Starting Current Control d Cooling Operation Mode f Soft Dry Operation Mode Indoor Fan is delayed for 1.6 seconds at the... -
Page 4: Functions
CS-A120TE Functions Outdoor Unit Overload Protection Hot-start Control (Heating) The indoor fan stops until the Evaporator piping temperature will be reached. 30sec. Forced Operation Control Automatic Restarting Control Once the compressor is activated it does not stop for 30 secs... -
Page 5: Product Specifications
CS-A120TE Product Specifications Unit CU-A120TE CS-A120TE 3.40 - 3.35 Cooling Capacity Btu/h 11,600 - 11,400 4.10 - 4.00 Heating Capacity Btu/h 13,900 - 13,600 Moisture Removal Pint/h Phase Single Power Source 240 - 220 Cycle SIDE VIEW TOP VIEW OUTLET... - Page 6 CS-A120TE Product Specifications Unit CS-A120TE CU-A120TE Heat Description Evaporator Condenser Exchanger Tube material Copper Copper Fin material Aluminium Aluminium Fin Type Corrugated Fin Louver Fin Row / Stage (Plate fin configuration, forced draft) 1 × 10 2 × 19 900 × 254 × 22 Size (W ×...
- Page 7 CS-A120TE Product Specifications Unit CU-A180TE CS-A180TE 5.10 - 5.05 Cooling Capacity Btu/h 17,400 - 17,200 5.45 - 5.35 Heating Capacity Btu/h 18,600 - 18,200 Moisture Removal Pint/h Phase Single Power Source 240 - 220 Cycle SIDE VIEW TOP VIEW OUTLET...
- Page 8 CS-A120TE Product Specifications Unit CS-A180TE CU-A180TE Heat Description Evaporator Condenser Exchanger Tube material Copper Copper Fin material Aluminium Aluminium Fin Type Corrugated Fin Louver Fin Row / Stage (Plate fin configuration, forced draft) 2 × 10 2 × 26 900 × 254 × 44 Size (W ×...
- Page 9 CS-A120TE Product Specifications Unit CU-A240TE CS-A240TE 6.10 - 6.00 Cooling Capacity Btu/h 20,800 - 20,400 6.20 - 6.00 Heating Capacity Btu/h 21,100 - 20,400 Moisture Removal Pint/h Phase Single Power Source 240 - 220 Cycle SIDE VIEW TOP VIEW OUTLET...
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Page 10: Product Specifications
CS-A120TE Product Specifications Unit CS-A240TE CU-A240TE Heat Description Evaporator Condenser Exchanger Tube material Copper Copper Fin material Aluminium Aluminium Fin Type Corrugated Fin Louver Fin Row / Stage (Plate fin configuration, forced draft) 2 × 10 2 × 26 900 × 254 × 44 Size (W ×... -
Page 11: Dimensions
CS-A120TE Dimensions CS-A120T 1100 CS-A180T CS-A240T Drain outlet Wireless remote-control transmitter Relative Position Between The Indoor Unit And The Installation Parts <Installation on the Ceiling> <Installation on the Wall> Ceiling Ceiling Wall mount for right rear bracket piping for left rear... -
Page 12: Dimensions
CS-A120TE Dimensions CU-A120T 3-way valve at liquid side 3-way valve at gas side CU-A180T CU-A240T 3-way valve at liquid side 3-way valve at gas side – 10 –... -
Page 13: Refrigeration Cycle Diagram
CS-A120TE Refrigeration Cycle Diagram CS-A120T CS-A180T/CS-240T Pipe Size Max. Piping Max. Model Length Elevation LIQUID 1/2" A120T 1/4" A180T 1/2" 1/4" 5/8" A240T 1/4" – 11 –... -
Page 14: Block Diagram
CS-A120TE Block Diagram CS-A120T/CU-A120T – 12 –... -
Page 15: Block Diagram
CS-A120TE Block Diagram CS-A180T/CU-A180T CS-A240T/CU-A240T – 13 –... -
Page 16: Wiring Diagram
CS-A120TE Wiring Diagram CS-A120T/CU-A120T Resistance of Indoor Fan Motor Windings. CONNECTION CWA92138(Ω) BLUE - YELLOW 282.3 40.4 YELLOW - BROWN 52.7 BROWN - ORANGE RED - ORANGE 278.4 NOTE: : BLUE : BLACK : BROWN : GRAY : ORANGE : PINK... - Page 17 CS-A120TE Wiring Diagram CS-A180T/CU-A180T CS-A240T/CU-A240T Resistance of Indoor Fan Motor Windings. CONNECTION CWA92139(Ω) 122.7 BLUE - YELLOW YELLOW - BROWN 87.0 BROWN - ORANGE 45.3 RED - ORANGE 193.0 NOTE: : BLUE : BLACK : BROWN : GRAY : ORANGE...
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Page 18: Operation Details
CS-A120TE Operation Details 1) Cooling Mode Operation When selecting the Cooling ( d ) Mode Operation, the unit will operate according to the setting by the Remote Control and the operation is as the following. Time Delay Safety Control 3 min. --- The Compressor is ceased for 3 minutes to balance the pressure in the refrigeration cycle. - Page 19 CS-A120TE Operation Details 3) Detail of Sleep Mode Sleep Mode operates to match your sleeping condition. 1 At Cooling or Soft Dry operation When you set the sleep Mode ( ), the following movement will start to avoid overcooling. • The fan speed is automatically set to low.
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Page 20: Operation Details
CS-A120TE Operation Details 5) Deice control • Deicing operation is controlled by sensing the indoor piping • Deicing ends by function of the pressure switch or after 9 temperature and timer. minutes of deice operation. • Deicing starts when 60 minutes after start of heating or deice ends and if the indoor piping temperature is 46°... -
Page 21: Servicing Information
CS-A120TE Servicing Information Pump-Down Terminal • The thermostat will be switched ON (even if the room temperature is low) when the pump-down terminal is short- circuited (by using alligator-type clips or a similar method), thus permitting easy pump-down when the unit is to be moved to another place. -
Page 22: Troubleshooting Guide
CS-A120TE Troubleshooting Guide Refrigeration cycle system In order to diagnose malfunctions, make sure that Normal Pressure and Outlet Air Temperature (Standard) there are no electrical problems before inspect- Gas pressure Outlet air ing the refrigeration cycle. Such problems include temperature... -
Page 23: Troubleshooting Guide
CS-A120TE Troubleshooting Guide 1. Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Heating Mode Condition of the air Electric Electric Low Pressure High Pressure Low Pressure High Pressure conditioner current during current during... -
Page 24: Technical Data
CS-A120TE Technical Data L L L L L Thermostat characteristics • Cooling • Heating L L L L L Operation characteristics Cooling characteristics – Outdoor temperature (Conditions: Room Temperature; 27°C (D.B.T.) Cooling operation; at High Fan) • CS-A120T • CS-A180T •... -
Page 25: Exploded View
CS-A120TE Exploded View CS-A120T CS-A180T CS-A240T – 23 –... - Page 26 CS-A120TE Exploded View CU-A120T CU-A180T CU-A240T CU-A120T CU-A180T CU-A240T – 25 –...
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Page 27: Replacement Parts List
CS-A120TE Replacement Parts List DESCRIPTION & NAME Q'TY CS-A120TE CS-A180TE CS-A240TE BASE ASS'Y CWD52K195B PARTICULAR PLATE FOR BASE CWD90811 PARTICULAR PIECE CWD93592 PARTICULAR PLATE CWD90821 FAN MOTOR BRACKET (BOTTOM) CWD54152 FAN MOTOR CWA92138 CWA92139 FAN MOTOR BRACKET (UPPER) CWD54153 BLOWER WHEEL ASS'Y CWH01K094 AIR GUIDER B.W. - Page 28 CS-A120TE Replacement Parts List DESCRIPTION & NAME Q'TY CU-A120TE CU-A180TE CU-A240TE CHASSIS ASS'Y CWD50K550A CWD50K514B SOUND PROOF BOARD CWH15214 CWH15223 FAN MOTOR BRACKET CWD54155 CWD54145 SUPPORTOR - F.M. BRACKET (LEFT) — CWD90835 SUPPORTOR - F.M. BRACKET (RIGHT) — CWD90836 FAN MOTOR...
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Page 29: Electronic Parts List
CS-A120TE Electronic Controller Parts List CWA74314 SYMBOL DESCRIPTION & NAME PART NO. BUZZER A48039 D1, D2, D3, D4, D5 DIODE A54MA165TA5 DIODE A54RA15-01KB DIODE BRIDGE A54CS1VB20E FUSE FUSE XBA2C20TR0 INTEGRATED CIRCUIT A52D7533U313 INTEGRATED CIRCUIT A52MN1551ABA INTEGRATED CIRCUIT A52MPC393C INTEGRATED CIRCUIT... - Page 30 MAICO Printed in Malaysia P971002200YH2...