Table of Contents
Advertisement
Service Manual
CS-MA90KE / CU-MA180KE
CS-MA120KE / CU-MA240KE
CS-MA70KE / CU-MA190KE
CS-MA120KE
Multi-Split Air Conditioners
Contents
Features .......................................................... 1
Functions ................................................... 2 - 4
Product Specifications ............................. 5 - 10
Dimensions ............................................ 11 - 12
Refrigeration Cycle Diagram ......................... 13
Block Diagram ............................................... 14
Wiring Diagram ...................................... 15 - 16
Operation Details ................................... 17 - 27
Installation Information .......................... 28 - 29
2-way, 3-way Valves .............................. 30 - 36
Servicing Information ............................. 37 - 40
Troubleshooting Guide .......................... 41 - 42
Technical Data ....................................... 43 - 46
Exploded View ............................. 47, 49, 51, 53
Replacement Parts List ............... 48, 50, 52, 54
Electronic Parts List ....................................... 55
© 1996 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T)
All rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
ORDER NO. MAC9611042C2
Advertisement
Table of Contents
Troubleshooting
Related Manuals for Panasonic CS-MA90KE
Summary of Contents for Panasonic CS-MA90KE
-
Page 1: Table Of Contents
ORDER NO. MAC9611042C2 Service Manual Multi-Split Air Conditioners CS-MA90KE / CU-MA180KE CS-MA120KE / CU-MA240KE CS-MA70KE / CU-MA190KE CS-MA120KE Contents Features ............1 Functions ........... 2 – 4 Product Specifications ......5 – 10 Dimensions ..........11 – 12 Refrigeration Cycle Diagram ......13 Block Diagram .......... -
Page 2: Features
– Wider range of horizontal discharge air – Prevent compressor reverse cycle – Longer hours of sleep mode operation – 2-stage OLP to protect compressor (CS-MA90KE / CS-MA120KE) • Auto Restart – Auto restart operation after power failure • Service Improvement –... -
Page 3: Functions
CS-MA90KE Functions Remote Control OFF / ON L TEMP. Operation OFF / ON Room Temperature Setting • Temperature Setting (16˚C to 30˚C) • Automatic Operation MODE Operation Mode Selection 2˚C lower than standard Standard • Automatic Operation Mode AUTO •... - Page 4 CS-MA90KE CS-A90KE Functions Indoor Unit POWER L Power Switch OFF / ON Auto Restart Control • Operation is restarted after power failure AUTO at previous setting mode. OFF / ON Auto Operation Switch Anti-Freezing Control • Used when the remote control cannot be used.
-
Page 5: Functions
49°C. • Compressor stops when indoor heat exchanger temperature reaches 65°C or Overload Protector above. • CS-MA90KE and CS-MA120KE (Heating Operation only) 2-stage OLP to protect the compressor. Overload Protector will trip when Compressor Protection Control – Temperature of compressor increases to 120°C. -
Page 6: Product Specifications
CS-MA90KE CS-A90KE Product Specifications Unit CS-MA70KE, CS-MA120KE CU-MA190KE 2.05 - 2.00, 3.50 - 3.45 Cooling Capacity Btu/h 7,000 - 6,800, 11,900 - 11,800 2.15 - 2.10, 4.10 - 4.00 Heating Capacity 7,300 - 7,200, 14,000 - 13,600 Btu/h 1.3, 2.0... - Page 7 CS-MA90KE Product Specifications Unit CS-MA70KE, CS-MA120KE CU-MA190KE Heat Evaporator Description Condenser Exchanger Tube material Copper Copper Fin material Aluminium Aluminium Fin Type Corrugated Fin Slot Fin Row / Stage (Plate fin configuration, forced draft) 2 × 12 2 × 12 1 ×...
- Page 8 CS-MA90KE CS-A90KE Product Specifications Unit CS-MA90KE CU-MA180KE 2.65 × 2 - 2.60 × 2 Cooling Capacity 9,000 × 2 - 8,900 × 2 Btu/h 3.15 × 2 - 3.00 × 2 Heating Capacity 10,700 × 2 - 10,200 × 2 Btu/h 1.6 ×...
- Page 9 CS-MA90KE Product Specifications CS-MA90KE CU-MA180KE Unit Description Evaporator Condenser Heat Copper Tube material Copper Exchanger Aluminium Fin material Aluminium Fin Type Slot Fin Corrugated Fin Row / Stage (Plate fin configuration, forced draft) 2 × 12 1 × 18 856 × 457.2 × 22 Size (W ×...
- Page 10 CS-MA90KE CS-A90KE Product Specifications CS-MA120KE CU-MA240KE Unit 3.50 × 2 - 3.45 × 2 Cooling Capacity 11,900 × 2 - 11,800 × 2 Btu/h 4.10 × 2 - 4.00 × 2 Heating Capacity 14,000 × 2 - 13,600 × 2 Btu/h 2.0 ×...
-
Page 11: Product Specifications
CS-MA90KE Product Specifications Unit CS-MA120KE CU-MA240KE Heat Evaporator Description Condenser Exchanger Tube material Copper Copper Fin material Aluminium Aluminium Fin Type Corrugated Fin Slot Fin Row / Stage (Plate fin configuration, forced draft) 2 × 12 2 × 19 600 × 252 × 25.4 Size (W ×... -
Page 12: Dimensions
CS-MA90KE CS-A90KE Dimensions CS-MA70KE / CS-MA90KE / CS-MA120KE <Front View> Air intake direction 2100 Air outlet direction Left piping hole Right piping hole <Back View> Installation plate hooks Remote control transmitter Liquid Drain ports side side (410) (45) Relative position between the indoor unit and the installation plate <Front View>... -
Page 13: Dimensions
CS-MA90KE Dimensions CU-MA180KE, CU-MA190KE, CU-MA240KE CU-MA180K CU-MA190K CU-MA240K 1015 1045 Unit A Liquid side 2-way valve Gas side 3-way valve Unit B Liquid side 2-way valve Gas side 3-way valve – 12 –... -
Page 14: Refrigeration Cycle Diagram
CS-MA90KE CS-A90KE Refrigeration Cycle Diagram CS-MA90KE / CU-MA180KE CS-MA120KE / CU-MA240KE CS-MA70KE / CU-MA190KE CS-MA120KE INDOOR OUTDOOR CHECK VALVE 2-WAY VALVE INTAKE PIPE TEMP. TEMP. SENSOR SENSOR (T.R.S) PIPE TEMP. SENSOR HEAT EXCHANGER (EVAPORATOR) HEAT EXCHANGER (CONDENSER) 3-WAY VALVE 4-WAY VALVE COMP. -
Page 15: Block Diagram
CS-MA90KE Block Diagram – 14 –... -
Page 16: Wiring Diagram
CS-MA90KE Wiring Diagram CS-MA70KE CU-MA190KE CS-MA120KE POWER SUPPLY CORD POWER SUPPLY CORD ELECTRONIC ELECTRONIC WIRELESS CONTROLLER WIRELESS CONTROLLER DISPLAY LAMP DISPLAY LAMP REMOTE (RECEIVER) REMOTE (RECEIVER) CN-DISP (W) CONTROL CN-RCV (W) CN-DISP (W) CONTROL CN-RCV (W) CORE CORE REMOTE CONTROL No... -
Page 17: Wiring Diagram
CS-MA90KE Wiring Diagram CS-MA90KE / CU-MA180KE CS-MA120KE / CU-MA240KE POWER SUPPLY CORD POWER SUPPLY CORD ELECTRONIC ELECTRONIC WIRELESS WIRELESS CONTROLLER CONTROLLER DISPLAY LAMP DISPLAY LAMP REMOTE REMOTE (RECEIVER) (RECEIVER) CN-DISP (W) CONTROL CN-DISP (W) CONTROL CN-RCV (W) CN-RCV (W) CORE... -
Page 18: Operation Details
CS-MA90KE Operation Details 1) Cooling Mode Operation Cooling in operation according to Remote Control setting. Time Delay Safety Control (3 minutes) • 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 19: Indoor Fan
CS-MA90KE Operation Details 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. • Deodorizing Control. Indoor stop stop stop stop 40" 30"... - Page 20 CS-MA90KE Operation Details 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. (During Soft Dry operation, the indoor fan operates with SLo speed.) •...
- Page 21 CS-MA90KE Operation Details Soft Dry Operation Time Diagram a b c d e f g h i j k l m n o p q r s t u v Intake Air Temperature Cooling ON 1.5°C Cooling OFF Set Temp.
- Page 22 CS-MA90KE Operation Details 3) 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-MA90KE Operation Details 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. [CS-MA90K, MA70K] [CS-MA120K] ° °...
- Page 24 CS-MA90KE Operation Details Deicing Control Deice starts to prevent frosting at outdoor heat exchanger. • Normal Deicing Deice operation detection commences after 30 minutes of Heating operation starts or 60 minutes after previous deice operation. If the TRS (Thermal Reed Switch) senses the outdoor piping temperature drops to –3°C (TRS CLOSE) or less for 50 sec.
- Page 25 CS-MA90KE Operation Details Normal Deicing Time Diagram Indoor 41°C Heat Exchanger 34°C Temp. 30°C (TRS) (OPEN) Outdoor 4°C Heat (CLOSE) Exchanger –3°C Temp. max 12 Basic time Compressor 4-way valve SLo Lo - SLo Lo - Indoor Fan Outdoor Fan Operation LED <Description of operation>...
- Page 26 CS-MA90KE Operation Details 4) Automatic Mode Operation Standard for Determining Operation Mode Setting Temperature (Standard) 25°C Cooling Mode Cooling Mode ↑ 23°C Intake Air 22°C Soft Dry Mode Soft Dry Mode 20°C Temperature Heating Mode Heating Mode 21°C (a) Indoor fan operates at SLo fan speed for 20 seconds.
- Page 27 CS-MA90KE Operation Details 6) Auto Restart Control • If there is a power failure, operation will be automatically restarted when the power is resumed. It will start with previous operation mode and airflow direction. (Time Delay Safety Control is valid) •...
-
Page 28: Operation Details
CS-MA90KE Operation Details 8) Airflow Direction Control Airflow Direction Auto-Control • When set a Airflow Direction Auto-Control with Horizontal remote control, the louver swings up and down as Upper limit shown in the diagram. 34° • The louver does not swing when the Indoor Fan stops during operation. -
Page 29: Installation Information
CS-MA90KE Installation Information Attached accessories Accessories part Qty. Accessories part Qty. Installation plate Drain elbow Installation plate fixing screw Clamping cover of piping Remote control Vinyl tape Battery Vinyl tape Air purifying filter Accessories: Flaring piping kit CZ-4F5, 7, 10 AN... -
Page 30: Installation Information
CS-MA90KE Installation Information Indoor / Outdoor unit installation diagram Length of power supply cord Piping direction Attention not to bend up drain hose (Front side) about 1.8 m about 1.1 m Right Right < < < < rear Left Left... -
Page 31: 2-Way, 3-Way Valves
CS-MA90KE 2-way • 3-way Valve 2-way Valve (Liquid Side) 3-way Valve (Gas Side) Valve cap Flare nut Hexagonal wrench (4 mm) Flare nut Open position Closed position Open position Closed position piping piping connection connection Service port Service port cap... -
Page 32: Evacuation Of Installation
CS-MA90KE 1 Evacuation of Installation WHEN INSTALLING AN AIR CONDITIONER, BE If air remain in the indoor unit and refrigeration SURE TO EVACUATE THE AIR INSIDE THE INDOOR pipes, it will affect the compressor, reduce to cool- UNIT AND PIPES in the following procedure. -
Page 33: Pumping Down
CS-MA90KE 2 Pumping down (Indoor unit) (Liquid side) (Outdoor unit) 2-way valve Closed (Gas side) 3-way valve CLOSE Open Refrigerant Reclaiming Equipment CLOSE Procedure: (1) Confirm that both the 2-way and 3-way valves are (6) Operate the air conditioner at the cooling cycle set to the opened position. - Page 34 CS-MA90KE 3 Evacuation of Re-installation WHEN RE-INSTALLING AN AIR CONDITIONER, BE If air remain in the indoor unit and refrigeration SURE TO EVACUATE THE AIR INSIDE THE INDOOR pipes, it will affect the compressor, reduce to cool- UNIT AND PIPES in the following procedure.
-
Page 35: Way, 3-Way Valves
CS-MA90KE 4 Balance refrigerant of the 2-way, 3-way valve (Lack of refrigerant in the refrigeration cycle) (Indoor unit) (Liquid side) (Outdoor unit) 2-way valve Open (Gas side) 3-way valve OPEN Open Refrigerant Reclaiming Equipment CLOSE Procedure: (1) Confirm that both the 2-way and 3-way valves are set to the open position. - Page 36 CS-MA90KE 5 Evacuation (No refrigerant in the refrigeration cycle) (Indoor unit) (Liquid side) (Outdoor unit) 2-way valve Open (Gas side) 3-way valve OPEN Open Vacuum pump CLOSE Procedure: (1) Connect the vacuum pump to the charge set’s centre hose. (2) Evacuation for approximately one hour.
-
Page 37: Gas Charging
CS-MA90KE 6 Gas charging (After Evacuation) (Indoor unit) (Liquid side) (Outdoor unit) 2-way valve Open (Gas side) Check valve 3-way valve Open Charging cylinder OPEN CLOSE Procedure: (1) Connect the charge hose to the charging cyl- This is different from previous procedures. Because inder. -
Page 38: Servicing Information
CS-MA90KE Servicing Information Sensors Earth Wire Connector Inspection points for the Indoor Electronic Control- Electronic Controller 1. The Electronic Controller, a signal Receiver and an Indicator can be seen by removing the Front Grille Electronic and Control Board Cover, as shown in the Fig. 1. - Page 39 CS-MA90KE Servicing Information Fan Motor securing screw 3. Remove the Fan Motor Loosen the Fan Motor securing screw at the junction with Cross Flow Fan. (Fig. 5) Fig. 5 Remove the particular piece and the Fan Motor can be taken off as shown in Fig. 6 and 7.
- Page 40 CS-MA90KE Servicing Information Cross Flow Fan Removal Procedure 1. Remove the Indoor Fan Motor. (Refer to the removal procedure of the Indoor Fan Motor.) (Fig. 9) Fan Motor Fig. 9 2. Remove the Air Discharge Grille by taking off the...
-
Page 41: Servicing Information
CS-MA90KE Servicing Information • Remote Control Reset Reset terminal 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 happens, remove the back cover of the remote... -
Page 42: Troubleshooting Guide
CS-MA90KE 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 43: Troubleshooting Guide
CS-MA90KE 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 High Pressure High Pressure Low Pressure Low Pressure conditioner current during current during... -
Page 44: Technical Data
CS-MA90KE Technical Data L L L L L Thermostat characteristics CS-MA70KE / CS-MA90KE / CS-MA120KE • Soft Dry • Cooling (°C) (°C) COMP. ON Cooling ON COMP. OFF = Set temperature Cooling OFF = Set temperature, Soft Dry OFF, Soft Dry ON Diff. - Page 45 CS-MA90KE Technical Data L L L L L Operation characteristics CS-MA70KE, CS-MA120KE / CU-MA190KE • Cooling Characteristic • Piping Length Characteristic (Cooling) 220V 220V 220V 220V 240V 240V 240V 240V 0.65 0.70 0.70 0.60 0.65 0.60 0.55 0.65 0.60 0.55 0.50...
- Page 46 CS-MA90KE Technical Data L L L L L Operation characteristics CS-MA90KE / CU-MA180KE The capability value shown is the value for one unit. For a total for two units, multiply by 2. • Cooling Characteristic • Piping Length Characteristic (Cooling)
-
Page 47: Technical Data
CS-MA90KE Technical Data L L L L L Operation characteristics CS-MA120KE / CU-MA240KE The capability value shown is the value for one unit. For a total for two unit, multiply by 2. • Piping Length Characteristic (Cooling) • Cooling Characteristic... -
Page 48: Exploded View
CS-MA90KE Exploded View (CS-MA70KE, CS-MA120KE / CU-MA190KE) CS-MA70KE / CS-MA120KE " & < > – 47 –... - Page 49 CS-MA90KE Exploded View (CS-MA70KE, CS-MA120KE / CU-MA190KE) CU-MA190KE > " & > " < & < – 49 –...
- Page 50 CS-MA90KE Exploded View (CS-MA90KE / CU-MA180KE, CS-MA120KE / CU-MA240KE) CS-MA90KE / CS-MA120KE " & < > – 51 –...
- Page 51 CS-MA90KE Exploded View (CS-MA90KE / CU-MA180KE, CS-MA120KE / CU-MA240KE) CU-MA180KE / CU-MA240KE > " & > " < & < – 53 –...
- Page 52 CS-MA90KE Replacement Parts List <Model: CS-MA70KE, CS-MA120KE> CS-MA70KE CS-MA120KE DESCRIPTION & NAME REMARKS CWD50C202 CHASSY COMPLETE FAN MOTOR CWA98244 CWH02C053 CROSS FLOW FAN COMPLETE CWH4580304 SCREW – CROSS FLOW FAN CWH64K007 BEARING ASS’Y CWB30C145 CWB30C146 EVAPORATOR CWT01C237 CWT01C238 TUBE ASS’Y COMPLETE CWH6002140 FLARE NUT (1/4")
- Page 53 CS-MA90KE Replacement Parts List <Model: CU-MA190KE> REMARKS DESCRIPTION & NAME CU-MA190KE (Upper) (Lower) CHASSY ASS’Y CWD50K627A CWD50K612A FAN MOTOR BRACKET CWD54113 CWD54155 SCREW – FAN MOTOR BRACKET CWH4580399 FAN MOTOR CWA95245 CWH55027 SCREW – FAN MOTOR MOUNT PROPELLER FAN CWH00K052 NUT –...
- Page 54 CS-MA90KE Replacement Parts List <Model: CS-MA90KE, CS-MA120KE> CS-MA90KE CS-MA120KE DESCRIPTION & NAME REMARKS CWD50C202 CHASSY COMPLETE FAN MOTOR CWA98244 CWH02C053 CROSS FLOW FAN COMPLETE CWH4580304 SCREW – CROSS FLOW FAN CWH64K007 BEARING ASS’Y CWB30C145 CWB30C146 EVAPORATOR CWT01C237 CWT01C238 TUBE ASS’Y COMPLETE CWH6002140 FLARE NUT (1/4")
- Page 55 CS-MA90KE Replacement Parts List <Model: CU-MA180KE / CU-MA240KE> REMARKS DESCRIPTION & NAME CU-MA180KE CU-MA240KE CWD50K626A CHASSY ASS’Y CWD50K562A CWD54155 FAN MOTOR BRACKET CWD54113 SCREW – FAN MOTOR BRACKET CWH4580399 FAN MOTOR CWA95245 SCREW – FAN MOTOR MOUNT CWH55027 PROPELLER FAN CWH00K052 NUT –...
-
Page 56: Replacement Parts List
CS-MA90KE Electronic Parts List <Model: CWA74900 / CWA74899 / CWA74804> SYMBOL DESCRIPTION & NAME PART NO. SOUND GENERATOR A48004 TRANSFORMER A40322 A54RB44–08V DIODE A54C197 DIODE A541SS131T DIODE A54RA15-01KB DIODE A54MA723TA DIODE D7 ~ D13, D15 ~ D23 DIODE A54MA165TA5 DIODE...