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Panasonic CS-E9RKUAW Service Manual

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Please file and use this manual together with the service manual for Model No. CU-2E18NBU and CU-5E36QBU, Order No.
PHAAM1111120A1 and PAPAMY1312037CE.
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 products dealt with in this service information by anyone else could result in serious injury or death.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
AUTO
FAN
SPEED
HEAT
AIR
COOL
SWING
DRY
FAN
CS-E9RKUAW
O FF/ O N
O FF/ O N
AUTO
ECONAVI
COMFORT
M O D E
T E M P
T E M P
AIR SWING
CS-E12RKUAW
POWERFUL/
/
QUIET
FAN SPEED
T IM E R
T IM E R
O N
O N
SET
SET
1
1
2
2
3
3
O FF
O FF
C A N C E L
C A N C E L
AC
RC
CS-E18RKUAW
SET CHECK CLOCK
CHECK
RESET
CS-E24RKUAW
AUTO
FAN
HEAT
SPEED
COOL
DRY
AIR
FAN
SWING
O FF/ O N
O FF/ O N
AUTO
ECONAVI
COMFORT
M O D E
T E M P
T E M P
POWERFUL/
/
AIR SWING
QUIET
FAN SPEED
T IM E R
T IM E R
O N
O N
SET
SET
1
1
2
2
3
3
O FF
O FF
C A N C E L
C A N C E L
AC
RC
SET CHECK CLOCK
CHECK
RESET
WARNING
PRECAUTION OF LOW TEMPERATURE
Indoor Unit
Order No: PAPAMY1501049CE
Outdoor Unit
CU-E9RKUA
CU-E12RKUA
CU-E18RKUA
CU-E24RKUA
Destination
USA
Canada
© Panasonic Corporation 2015.

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Table of Contents
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  Summary of Contents for Panasonic CS-E9RKUAW

  • Page 1 PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit. © Panasonic Corporation 2015.
  • Page 2: Table Of Contents

    11.1 Select the Best Location ......33 19. Disassembly and Assembly Instructions ... 107 11.2 Indoor Unit ..........34 19.1 CS-E9RKUAW CS-E12RKUAW .... 107 11.3 Outdoor Unit ..........38 19.2 CS-E18RKUAW CS-E24RKUAW ..111 12. Installation Instruction 19.3 Outdoor Electronic Controller Removal (E18RK and E24RK) .........
  • 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.). 20.
  • Page 5: Specification

    2. Specification Indoor CS-E9RKUAW CS-E12RKUAW Model Outdoor CU-E9RKUA CU-E12RKUA Performance Test Condition Phase, Hz Single, 60 Single, 60 Power Supply Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. 1.20 2.64 3.00 1.20 2.64 3.00 1.20 3.36 3.90...
  • Page 6 Indoor CS-E9RKUAW CS-E12RKUAW Model Outdoor CU-E9RKUA CU-E12RKUA Type Propeller Propeller Material Motor Type DC (8 poles) DC (8 poles) Input Power Output Power Speed C: 830 H: 780 C: 830 H: 820 Moisture Removal L/h (Pt/h) 0.6 (1.3) 0.8 (1.7) Cooling : 6.28 (222)
  • Page 7 Indoor CS-E9RKUAW CS-E12RKUAW Model Outdoor CU-E9RKUA CU-E12RKUA DRY BULB WET BULB DRY BULB WET BULB Maximum 89.6 / 32 73.4 / 23 89.6 / 32 73.4 / 23 Indoor Operation Range (Cooling) (°F / °C) Minimum 60.8 / 16 51.8 / 11 60.8 / 16...
  • Page 8 Indoor CS-E18RKUAW CS-E24RKUAW Model Outdoor CU-E18RKUA CU-E24RKUA Performance Test Condition Phase, Hz Single, 60 Single, 60 Power Supply Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. 1.70 5.04 5.80 1.70 5.04 5.80 1.70 7.02 8.00 1.70 7.02 8.00 Capacity...
  • Page 9 Indoor CS-E18RKUAW CS-E24RKUAW Model Outdoor CU-E18RKUA CU-E24RKUA Type Propeller Propeller Material Motor Type DC Motor (8 poles) DC Motor (8 poles) Input Power Output Power Cooling: 700 Cooling: 730 Speed Heating: 700 Heating: 750 Moisture Removal L/h (Pt/h) 1.4 (3.0) 3.6 (7.6) Cooling : 13.28 (469) Cooling : 13.42 (474)
  • Page 10 Indoor CS-E18RKUAW CS-E24RKUAW Model Outdoor CU-E18RKUA CU-E24RKUA DRY BULB WET BULB DRY BULB WET BULB Maximum 89.6 / 32 73.4 / 23 89.6 / 32 73.4 / 23 Indoor Operation Range (Cooling) (°F / °C) Minimum 60.8 / 16 51.8 / 11 60.8 / 16 51.8 / 11 Maximum...
  • Page 11: Features

    3. Features  Inverter Technology Wider output power range Energy saving Quick Cooling More precise temperature control  Environment Protection Non-ozone depletion substances refrigerant (R410A)  Long Installation Piping CS/CU-E9/12RK, long piping up to 65 feet (20 meters) CS/CU-E18/24RK, long piping up to 100 feet (30 meters) ...
  • Page 12: Location Of Controls And Components

    4. Location of Controls and Components Indoor Unit Aluminium Fin Front Panel Auto OFF/ON button Air Filters Air Purifying Filter INDICATOR (Green) POWER Human activity (Orange) sensor TIMER Remote control (Green) Horizontal Airflow ECONAVI receiver and Indicator Direction Louver (Green) AUTO COMFORT •...
  • Page 13: Dimensions

    5. Dimensions Indoor Unit 5.1.1 CS-E9RKUAW CS-E12RKUAW <Top View> <Side View> <Side View> Air intake <Front View> 8-7/16 direction 1/32~1/16 Air outlet Left piping Right piping 1/32~1/16 34-9/32 direction hole hole <Bottom View> Remote control 1-7/8 A U T O...
  • Page 14 5.1.2 CS-E18RKUAW CS-E24RKUAW <Top View> <Side View> <Side View> <Front View> Air intake 9-15/32 direction 1/32~1/16 1/32~1/16 Air outlet Left piping 42-5/32 Right piping direction hole hole <Bottom View> Remote control 1-7/8 A U T O F A N SP E E D H E A T C O O L D R Y...
  • Page 15: Outdoor Unit

    Outdoor Unit 5.2.1 CU-E9RKUA CU-E12RKUA <Top View> Space necessary for installation 2-5/8 30-23/32 (4-1/8) 4-1/8 2-3/8 22-1/2 3-7/8 3-7/8 39-3/8 2-way valve at Liquid side (High Pressure) Anchor Bolt Pitch 12-5/8 x 22-1/2 3-way valve at Gas side (Low Pressure) <Side View>...
  • Page 16: Refrigeration Cycle Diagram

    6. Refrigeration Cycle Diagram CU-E9RKUA CU-E12RKUA INDOOR OUTDOOR LIQUID DISCHARGE EXPANSION SIDE STRAINER MUFFLER VALVE 2-WAY VALVE PIPE PIPE TEMP. TEMP. SENSOR SENSOR INTAKE INTAKE TEMP. TEMP. SENSOR SENSOR HEAT EXCHANGER HEAT EXCHANGER (EVAPORATOR) (CONDENSER) SIDE 4-WAY VALVE 3-WAY VALVE COMPRESSOR TEMP.
  • Page 17: Cu-E18Rkua Cu-E24Rkua

    CU-E18RKUA CU-E24RKUA INDOOR OUTDOOR LIQUID EXPANSION SIDE RECEIVER STRAINER VALVE 2-WAY VALVE PIPE PIPE TEMP. TEMP. SENSOR 1 SENSOR INTAKE INTAKE TEMP. PIPE TEMP. SENSOR TEMP. SENSOR SENSOR 2 HEAT EXCHANGER HEAT EXCHANGER (EVAPORATOR) (CONDENSER) SIDE 4-WAY VALVE 3-WAY VALVE DISCHARGE MUFFLER COMPRESSOR DISC.
  • Page 18: Block Diagram

    7. Block Diagram CS-E9RKUAW CU-E9RKUA CS-E12RKUAW CU-E12RKUA...
  • Page 19: Cs-E18Rkuaw Cu-E18Rkua Cs-E24Rkuaw Cu-E24Rkua

    CS-E18RKUAW CU-E18RKUA CS-E24RKUAW CU-E24RKUA...
  • Page 20: Wiring Connection Diagram

    8. Wiring Connection Diagram Indoor Unit 8.1.1 CS-E9RKUAW CS-E12RKUAW REMARKS TERMINAL AUTO SW BOARD : BLUE P : PINK (SW01) AC306 (BLK) BR : BROWN O : ORANGE BL : BLACK Y : YELLOW FUSE301 W : WHITE G : GREEN T3.15A L250V...
  • Page 21 8.1.2 CS-E18RKUAW CS-E24RKUAW REMARKS TERMINAL AUTO SW : BLUE P : PINK BOARD (SW01) AC306 (BLK) BR : BROWN O : ORANGE BL : BLACK Y : YELLOW FUSE301 W : WHITE G : GREEN T3.15A L250V : RED Y/G : YELLOW/GREEN TEMP.
  • Page 22: Outdoor Unit

    Outdoor Unit 8.2.1 CU-E9RKUA CU-E12RKUA...
  • Page 23 8.2.2 CU-E18RKUA CU-E24RKUA...
  • Page 24: Electronic Circuit Diagram

    9. Electronic Circuit Diagram Indoor Unit 9.1.1 CS-E9RKUAW CS-E12RKUAW TERMINAL AUTO SW BOARD (SW01) AC306 (BLK) *R54 *R37 FUSE301 T3.15A L250V *C45 0.1u TEMP. AC303 (WHT) FUSE OUTDOOR *C49 102°C NOISE FILTER UNIT NONE CN–RMT CIRCUIT (3A) AC304 (RED) IC03...
  • Page 25 9.1.2 CS-E18RKUAW CS-E24RKUAW TERMINAL AUTO SW BOARD (SW01) AC306 (BLK) *R54 *R37 FUSE301 T3.15A L250V *C45 0.1u TEMP. AC303 (WHT) FUSE OUTDOOR *C49 102°C NOISE FILTER UNIT NONE CN–RMT (3A) CIRCUIT AC304 (RED) IC03 (WHT) IC03 G301 (GRN) CN–STM1 GROUNDING (WHT) TERMINAL IC03...
  • Page 26: Outdoor Unit

    Outdoor Unit 9.2.1 CU-E9RKUA CU-E12RKUA...
  • Page 27 9.2.2 CU-E18RKUA CU-E24RKUA...
  • Page 28: Printed Circuit Board

    10. Printed Circuit Board 10.1 Indoor Unit 10.1.1 Main Printed Circuit Board CN-FM CN-RMT CN-STM2 (E18/24RKUAW only) CN-STM1 CN-MSENS CN-DISP CN-TH JP1 (Random Auto Restart enable/disable) 10.1.2 Indicator Printed Circuit Board CN-DISP...
  • Page 29 10.1.3 Comparator Printed Circuit Board CN-SENS1 CN-SENS2 CN-MSENS...
  • Page 30: Outdoor Unit

    10.2 Outdoor Unit 10.2.1 Main Printed Circuit Board 10.2.1.1 CU-E9RKUA CU-E12RKUA AC-BLK AC-WHT DATA CN-DCFM CN-STM CURRENT CN-TANK TRANSFORMER (CT) CN-TH CN-HOT POWER TRANSISTOR (IPM)
  • Page 31 10.2.1.2 CU-E18RKUA CU-E24RKUA DC-FMG CN-TH1 CN-EV CN-DIS CN-S CN-COM CN-FM1 CN-HT DC-FM1 CN-HOT AC-BLK AC-WHT CURRENT TRANSFORMER (CT) POWER TRANSISTOR (IPM)
  • Page 32 10.2.2 Noise Filter Printed Circuit Board 10.2.2.1 CU-E18RKUA CU-E24RKUA...
  • Page 33: Installation Instruction (E9Rk And E12Rk)

    11. Installation Instruction (E9RK and E12RK) 11.1 Select the Best Location 11.1.3 Indoor/Outdoor Unit Installation Diagram 11.1.1 Indoor Unit  Do not install the unit in excessive oil fume area Piping direction Do not bend up (Front side) drain hose such as kitchen, workshop and etc.
  • Page 34: Indoor Unit

    11.2 Indoor Unit 11.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent it from the vibration. Wall Wall Wall More than 1 More than 1 Indoor unit More than 2 screw " (128 mm) "...
  • Page 35: Indoor Unit Installation

    11.2.3 Indoor Unit Installation Do not turn over the unit without it’s shock absorber during pull out the piping. It may cause intake grille damage. Use shock absorber during pull out the piping to protect the intake grille from damage. Piping Piping Intake grille...
  • Page 36: Connect The Cable To The Indoor Unit

    Replace the drain hose Rear view for left piping installation Connection cable Piping More than 37 " Drain hose (950 mm) Drain hose Drain hose Connection Drain cap cable Sleeve for piping hole Adjust the piping slightly downwards. • • How to pull the piping and drain hose out, in case of embedded piping.
  • Page 37 11.2.5 Wiring Stripping and connecting requirement Wire stripping Conductor Conductor Conductor not fully inserted over inserted fully inserted Indoor/outdoor connection terminal board " (5 mm) or more No loose strand ACCEPT PROHIBITED PROHIBITED when inserted (gap between wires) RISK OF FIRE JOINING OF WIRES MAY CAUSE WARNING...
  • Page 38: Outdoor Unit

    11.3 Outdoor Unit 11.3.1 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 (ø13/32" (ø10 mm)). When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.
  • Page 39: Evacuation Of The Equipment

    Align center of piping to valve and then tighten with torque wrench to the specified torque as stated in the table. Hall Union Male side Female side Flare Nut Applicable to (Auxiliary pipe) (Connection pipe) Liquid and Gas side of CS-E9RKUAW Liquid side of Wrench CS-E12RKUAW (Adjustable Wrench) Torque Wrench for Flare Nut Hall Union Flare Nut Pipe Size...
  • Page 40: Connect The Cable To The Outdoor Unit

    11.3.3.1 Connect the Cable to the Outdoor Unit 1. Remove Top panel. 2. Remove Control Board Cover (Resin and Metal). Top Panel 3. Remove Plugs. Power Supply 4. Fix the conduit connectors to the knockout Control Board Wires holes with lock-nuts, then secure them against Metal Cover Lock Nuts Control Board...
  • Page 41: Installation Instruction (E18Rk And E24Rk)

    12. Installation Instruction (E18RK and E24RK) 12.1 Select the Best Location 12.1.3 Indoor/Outdoor Unit Installation Diagram 12.1.1 Indoor Unit  Do not install the unit in excessive oil fume area Piping direction Attention not to bend (Front side) up drain hose such as kitchen, workshop and etc.
  • Page 42: Indoor Unit

    12.2 Indoor Unit 12.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent it from the vibration. Wall Wall Wall More than 1 More than 1 Indoor unit More than 2 screw " (128 mm) ”...
  • Page 43 12.2.3 Indoor Unit Installation Do not turn over the unit without it’s shock absorber during pull out the piping. It may cause intake grille damage. Use shock absorber during pull out the piping to protect the intake grille from damage. Piping Piping Intake grille...
  • Page 44 Replace the drain hose Rear view for left piping installation Connection cable Piping More than 45 " Drain hose (1150 mm) Drain hose Drain hose Connection Drain cap cable Sleeve for piping hole Adjust the piping slightly downwards. • • How to pull the piping and drain hose out, in case of embedded piping.
  • Page 45 12.2.5 Wiring Stripping and connecting requirement Wire stripping Conductor Conductor Conductor not fully inserted over inserted fully inserted Indoor/outdoor connection terminal board " (5 mm) or more No loose strand ACCEPT PROHIBITED PROHIBITED when inserted (gap between wires) RISK OF FIRE JOINING OF WIRES MAY CAUSE WARNING...
  • Page 46: Outdoor Unit

    12.3 Outdoor Unit 12.3.1 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 ø13/32" (ø10 mm). When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.
  • Page 47 12.3.2.3 Connecting the piping to outdoor multi Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (locate at valve) onto the copper pipe. Align center of piping to valve and then tighten with torque wrench to the specified torque as stated in the table. Male side Female side Hall Union...
  • Page 48 12.3.3.1 Connect the Cable to the Outdoor Unit 1. Remove control board cover (Resin and Metal). 2. Remove particular plate. 3. Remove plugs. 4. Fix the conduit connectors to the knockout holes with lock-nuts, then secure them against the side panel. 5.
  • Page 49: Operation Control

    13. Operation Control 13.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operation mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operation mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting.
  • Page 50: Indoor Fan Speed Control

    13.1.4.2 Automatic Operation (For Single Split Connection Only)  This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode and indoor intake air temperature.  During operation mode judgment, indoor fan motor (with speed of Lo-) is running for 30 seconds to detect the indoor intake air temperature.
  • Page 51: Indoor Fan Motor Operation

    13.3 Indoor Fan Motor Operation 13.3.1 Basic Rotation Speed (rpm)  Manual Fan Speed [Cooling, Dry] Fan motor’s number of rotation is determined according to remote control setting. Remote control ○ ○ ○ ○ ○ [Heating] Fan motor’s number of rotation is determined according to remote control setting. Remote control ○...
  • Page 52: Airflow Direction

    13.5 Airflow Direction  There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes).  Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature and intake air temperature) and manual (angles of direction can be adjusted using remote control).
  • Page 53: Quiet Operation (Cooling Mode/Cooling Area Of Dry Mode)

    13.5.3 Horizontal Airflow (CU-E18RKUA CU-E24RKUA)  Automatic horizontal airflow direction can be set using remote control; the vane swings left and right within the angles as stated below. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below.
  • Page 54: Quiet Operation (Heating)

    13.7 Quiet Operation (Heating)  Purpose To provide quiet heating operation compare to normal operation.  Control condition Quiet operation start condition  When “POWERFUL/QUIET” button at remote control is pressed. Quiet LED illuminates. Quiet operation stop condition  When one of the following conditions is satisfied, quiet operation stops: ...
  • Page 55: Auto Restart Control

    13.10 Auto Restart Control  When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power supply resumes.
  • Page 56 2. Circuit Abnormal (Fix Output Lo) a. Abnormal judgment start condition. After ECONAVI and AUTO COMFORT Sensor unit power ON, and after pressed 70 seconds. b. Control content. Judge ECONAVI and AUTO COMFORT Sensor power level every 100ms. c. Abnormal Judgment condition. When ECONAVI and AUTO COMFORT Sensor has continues at Lo level for 25 seconds.
  • Page 57  ECONAVI Start condition.  Press ECONAVI button.  ECONAVI Stop condition.  Press ECONAVI button again. OFF Timer activates.   Press OFF/ON button to turn off the air conditioner.  Press AUTO OFF/ON button to turn off the air conditioner. ...
  • Page 58 13.12.1 Human Activity Sensor Check Mode  To enable Human Activity sensor abnormality check mode, during ECONAVI operation ON: Remote control normal mode Press continously for 5s Transmit ECO demo code and after 30 seconds return to normal mode. TEMP TEMP Transmit sunlight sensor check code and after 30 seconds return to normal...
  • Page 59: Operation Control (For Multi Split Connection)

    14. Operation Control (For Multi Split Connection) During multi split connection, indoor unit’s operation controls are same with single split connection unless specified in this chapter. 14.1 Cooling operation 14.1.1 Thermostat control  Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature — Internal setting temperature <...
  • Page 60: Automatic Operation (For Multi Split Connection Only)

    14.4 Automatic Operation (For Multi Split Connection Only)  This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode, indoor intake and outdoor air temperature.  During operation mode judgment, indoor fan motor (with speed of -Lo) and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature.
  • Page 61: Protection Control (E9Rk And E12Rk)

    15. Protection Control (E9RK and E12RK) 15.1 Protection Control For All Operations 15.1.1 Restart Control (Time Delay Safety Control)  The compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period.
  • Page 62 15.1.5 Compressor Overheating Prevention Control  Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below.  If compressor discharge temperature exceeds 224.6°F, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking.
  • Page 63: Protection Control For Cooling & Soft Dry Operation

    15.2 Protection Control For Cooling & Soft Dry Operation 15.2.1 Outdoor Air Temperature Control  The maximum current value is regulated when the outdoor air temperature rise above 57.2°F in order to avoid compressor overloading. Compressor ON 101.3°F 99.5°F Compressor OFF Outdoor Air Temperature ...
  • Page 64: Dew Prevention Control

    15.2.5 Dew Prevention Control 1  To prevent dew formation at indoor unit discharge area.  This control will be activated if: Outdoor air temperature and Indoor pipe temperature judgment by microcontroller is fulfilled. When Cooling or Dry mode is operated more than 20 minutes or more. ...
  • Page 65 15.2.6.3 Overload Protection Control  The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown below.  If the heat exchanger temperature exceeds 140.0°F, compressor will stop. 140°F Frequency Reduced 131°F Frequency Limited 120.2°F Frequency Limited Free 114.8°F...
  • Page 66: Protection Control (E18Rk And E24Rk)

    16. Protection Control (E18RK and E24RK) 16.1 Protection Control For All Operations 16.1.1 Restart Control (Time Delay Safety Control)  The compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period.
  • Page 67: Protection Control For Cooling & Soft Dry Operation

    16.1.5 Compressor Overheating Prevention Control  Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below.  If compressor discharge temperature exceeds 233.6°F, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking.
  • Page 68: Cooling Overload Control

     The compressor will be stopped at outdoor air temperature ≤ -4°F. The unit still operate within the temperature range. Compressor ON -0.4°F -4°F Compressor OFF Outdoor Air Temperature 16.2.2 Cooling Overload Control  Pipe temperature limitation / restriction. Detects the outdoor pipe temperature and carry out restriction / limitation below (Limit the compressor operation frequency) The compressor stops if outdoor pipe temperature exceeds 145.4°F.
  • Page 69 16.2.6.2 Outdoor Air Temperature Control  The Max current value is regulated when the outdoor air temperature rise above 57.2°F in order to avoid compressor overloading.  The compressor will be stopped at outdoor air temperature ≤ -4°F. The unit still operate within the temperature range.
  • Page 70: Servicing Mode

    17. Servicing Mode 17.1 Auto Off/On Button Auto OFF/ON Auto OFF/ON Auto OFF/ON Button pressed Button pressed Button pressed 5 sec 5 sec Auto Operation Test Run Operation Stop Test Run Operation Stop (Forced Cooling Operation) (Forced Cooling Operation) Beep Beep x 2 AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF/ON button is pressed.
  • Page 71: Cooling Only Operation (Single Connection Only, Multi Connection Please Refer To Multi Outdoor Manual)

    Press Auto OFF/ON button to toggle remote control receiving sound. - Short “beep”: Turn OFF remote control receiving sound. - Long “beep”: Turn ON remote control receiving sound. After Auto OFF/ON button is pressed, the 20 seconds counter for Remote Control Receiving Sound OFF/ON Mode is restarted.
  • Page 72: Remote Control Button

    17.3 Remote Control Button 17.3.1 SET Button  To check remote control transmission code and store the transmission code to EEPROM Press “Set” button continuously for 10 seconds by using pointer Press “Timer Set” button unit a “beep” sound is heard as confirmation of transmission code change. 17.3.2 RESET (RC) ...
  • Page 73: Troubleshooting Guide

    18. Troubleshooting Guide 18.1 Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no Normal Pressure and Outlet Air Temperature (Standard) electrical problems before inspecting the refrigeration cycle. Gas Pressure Outlet air Temperature Such problems include insufficient insulation, problem with the (kg/cm (°F) power source, malfunction of a compressor and a fan.
  • Page 74 18.1.1 Relationship between the condition of the air conditioner and pressure and electric current n i l n i t Condition of the air Electric current Electric current Low Pressure High Pressure Low Pressure High Pressure conditioner during operating during operating Insufficient refrigerant (gas leakage) Clogged capillary tube...
  • Page 75: Breakdown Self Diagnosis Function

    18.2 Breakdown Self Diagnosis Function 18.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code)  Once error occurred during operation, the unit will stop its operation, and Timer LED blinks.  Although Timer LED goes off when power supply is turned off, if the unit is operated under a breakdown condition, the LED will ON again.
  • Page 76: Error Code Table

    18.3 Error Code Table Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgement operation u l i — — — Indoor/outdoor After operation for Indoor fan only Indoor/outdoor • Indoor/outdoor wire terminal abnormal 1 minute operation can communication not establish •...
  • Page 77 Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgement operation ECONAVI sensor Continuous for — ECOANVI sensor open or • ECONAVI sensor (defective or abnormality short circuit disconnected) • ECONAVI PCB Outdoor high pressure Continuous for 1 —...
  • Page 78: Self-Diagnosis Method

    18.4 Self-diagnosis Method 18.4.1 H11 (Indoor/Outdoor Abnormal Communication) Malfunction Decision Conditions  During startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction Caused  Faulty indoor unit PCB.
  • Page 79: Troubleshooting

    18.4.2 H12 (Indoor/Outdoor Capacity Rank Mismatched) Malfunction Decision Conditions  During startup, error code appears when different types of indoor and outdoor units are interconnected. Malfunction Caused  Wrong models interconnected.  Wrong indoor unit or outdoor unit PCBs mounted. ...
  • Page 80 18.4.3 H14 (Indoor Intake Air Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 81 18.4.4 H15 (Compressor Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection.  Faulty sensor.
  • Page 82 18.4.5 H16 (Outdoor Current Transformer) Malfunction Decision Conditions  An input current, detected by Current Transformer CT, is below threshold value when the compressor is operating at certain frequency value for 3 minutes. Malfunction Caused  Lack of gas.  Broken CT (current transformer).
  • Page 83 18.4.6 H19 (Indoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550rpm or < 50rpm) Malfunction Caused ...
  • Page 84 18.4.7 H23 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 85 18.4.8 H27 (Outdoor Air Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 86 18.4.9 H28 (Outdoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 87 18.4.10 H30 (Compressor Discharge Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 88 18.4.11 H32 (Outdoor Heat Exchanger Temperature Sensor 2 Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection.
  • Page 89 18.4.12 H33 (Unspecified Voltage between Indoor and Outdoor) Malfunction Decision Conditions  The supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction Caused  Wrong models interconnected.  Wrong indoor unit and outdoor unit PCBs used.  Indoor unit or outdoor unit PCB defective.
  • Page 90 18.4.13 H36 (Outdoor Gas Pipe Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor gas pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 91 18.4.14 H37 (Outdoor Liquid Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor liquid pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 92 18.4.15 H59 (Human Activity Sensor Abnormality) Malfunction Decision Conditions  Feedback signal of human activity sensor. Malfunction Caused  Feedback signal is fixed at 0 VDC or 5 VDC continuously for 25 seconds during ECONAVI or AUTO COMFORT operation.  Feedback signal is detected during ECONAVI or AUTO COMFORT off.
  • Page 93 18.4.16 H70 (Light Sensor Abnormality) Malfunction Decision Conditions  Feedback signal of light sensor. Malfunction Caused  Feedback value is 0 VDC continuously. Troubleshooting When abnormality indication starts again. For safety reason and to prevent Check the connector connection: component breakdown, always switch Turn off the power.
  • Page 94 18.4.17 H97 (Outdoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor. Malfunction Caused  Operation stops due to short circuit inside the fan motor winding. ...
  • Page 95 18.4.18 H98 (Error Code Stored in Memory and no alarm is triggered / no TIMER LED flashing) Malfunction Decision Conditions  Indoor high pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is operating in heating operation. ...
  • Page 96: H99 (Indoor Freeze Prevention Protection: Cooling Or Soft Dry)

    18.4.19 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions  Freeze prevention control takes place (when indoor pipe temperature is lower than 2°C). Malfunction Caused ...
  • Page 97 18.4.20 F11 (4-way Valve Switching Failure) Malfunction Decision Conditions  When indoor heat exchanger is cold during heating (except deice) or when indoor heat exchanger is hot during cooling and compressor operating, the 4-way valve is detected as malfunction. Malfunction Caused ...
  • Page 98 18.4.21 F17 (Indoor Standby Units Freezing Abnormality) Malfunction Decision Conditions  When the different between indoor intake air temperature and indoor pipe temperature is above 50°F or indoor pipe temperature is below 30.2°F Remark: When the indoor standby unit is freezing, the outdoor unit transfers F17 error code to the corresponding indoor unit and H39 to other indoor unit(s).
  • Page 99 18.4.22 F90 (Power Factor Correction Protection) Malfunction Decision Conditions  To maintain DC voltage level supply to power transistor.  To detect high DC voltage level after rectification. Malfunction Caused  During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at the outdoor unit main PCB senses abnormal DC voltage level for power transistors.
  • Page 100 18.4.23 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions  The input current is low while the compressor is running at higher than the setting frequency. Malfunction Caused  Lack of gas.  3-way valve close. Troubleshooting When F91 indication happens. For safety reason and to prevent component breakdown, always switch off the power before remove and...
  • Page 101 18.4.24 F93 (Compressor Rotation Failure) Malfunction Decision Conditions  A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Caused  Compressor terminal disconnect.  Faulty Outdoor PCB.  Faulty compressor. Troubleshooting When F93 indication happens.
  • Page 102 18.4.25 F95 (Outdoor High Pressure Protection: Cooling or Soft Dry) Malfunction Decision Conditions  During operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by the outdoor unit heat exchanger thermistor. Malfunction Caused ...
  • Page 103 18.4.26 F96 (IPM Overheating) Malfunction Decision Conditions  During operating of cooling and heating, when IPM temperature data (212°F) is detected by the IPM temperature sensor. Multi Models only Compressor Overheating: During operation of cooling and heating, when the compressor OL is activated. Heat Sink Overheating: During operation of cooling and heating, when heat sink temperature data (194°F) is detected by the heat sink temperature sensor.
  • Page 104 18.4.27 F97 (Compress or Overheating) Malfunction Decision Conditions  During operation of cooling and heating, when compressor tank temperature data (233.6°F) is detected by the compressor tank temperature sensor. Malfunction Caused  Faulty compressor tank temperature sensor  2/3 way valve closed ...
  • Page 105 18.4.28 F98 (Input Over Current Detection) Malfunction Decision Conditions  During operation of cooling and heating, when an input over-current (X value in Total Running Current Control) is detected by checking the input current value being detected by current transformer (CT) with the compressor running.
  • Page 106 18.4.29 F99 (DC Peak Detection) Malfunction Decision Conditions During startup and operation of cooling and heating, when inverter DC peak data is received by the outdoor internal DC Peak sensing circuitry. Malfunction Caused  DC current peak due to compressor failure. ...
  • Page 107: Disassembly And Assembly Instructions

    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. 19.1 CS-E9RKUAW CS-E12RKUAW 19.1.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 19.1.1.1...
  • Page 108 9. Pull out the main 10. Detach 3 or 4 connectors as labeled from electronic controller and the electronic controller. Then pull out power electronic main controller gently controller halfway. Remove screw to remove terminal board complete. CN-FM CN-RMT Detach the CN-DISP connector then remove the indicator complete.
  • Page 109: To Remove Cross Flow Fan And Indoor Fan Motor

    19.1.1.5 To remove cross flow fan and indoor fan motor 14. Remove the screw that holding the cross flow fan and fan motor axis. Figure 7 16. Remove the bearing by pulling it out gently 15. Remove the screw from the evaporator.
  • Page 110 Cross Flow Fan Reminder: To reinstall the cross flow fan, ensure cross flow fan is in line as shown in figure 10 Figure 10...
  • Page 111: Cs-E18Rkuaw Cs-E24Rkuaw

    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. 19.2 CS-E18RKUAW CS-E24RKUAW 19.2.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 19.2.1.1 To remove front grille...
  • Page 112 19.2.1.3 To remove discharge grille 11. Pull out to remove the drain hose from the discharge grille. 12. Then pull the discharge grille downward gently to dismantle it. Figure 5 19.2.1.4 To remove control board 13. Remove 4 screws holding the control board then pull out the control board.
  • Page 113 16. Remove the bearing by pulling it out gently. 15. Remove the screw from the evaporator. Figure 8 17. Push the holdfast to the left and lift up the evaporator. Evaporator 19. Fan motor can be removed after the Cross flow fan removal of cross flow fan.
  • Page 114: Outdoor Electronic Controller Removal Procedure

    19.3 Outdoor Electronic Controller Removal Procedure 19.3.1 CU-E9RKUA CU-E12RKUA Caution! When handling electronic controller, be careful of electrostatic discharge. Remove the 3 screws of the Top Panel. Remove the Control Board as follows: Screw Control Board Release 3 Top Panel Terminal Connectors Screws and Earth Wire Screw...
  • Page 115 19.3.2 CU-E18RKUA CU-E24RKUA Caution! When handling electronic controller, be careful of electrostatic discharge. Remove the 8 screws of the Top Panel. Remove the Control Board. Screws Release 7 Release the hooks Control board Screws terminal connectors Screws Release 8 connectors Fig.
  • Page 116: Technical Data

    Cool Mode Performance Data Unit setting: Standard piping length, Hi Fan, Cool mode at 60.8°F Voltage: 230V 20.1.1 CS-E9RKUAW CU-E9RKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) Outdoor (°C / °F)
  • Page 117 20.1.3 CS-E18RKUAW CU-E18RKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) Outdoor (°C / °F) -20 (-4) -10 (14) 0 (32) 5 (41) 19 (66.2) 21188 17930 21167 17913 21141...
  • Page 118 20.1.5 CS-E9RKUAW CU-E9RKUA Maximum Capacity Indoor (°C / °F) Outdoor (°C / °F) -20 (-4) -10 (14) 0 (32) 5 (41) 19 (66.2) 10120 8963 10120 8963 10073 9043 10281 9231 (80.6) 22 (71.6) 10694 6372 10694 6372 10758 6463...
  • Page 119 20.1.7 CS-E18RKUAW CU-E18RKUA Maximum Capacity Indoor (°C / °F) Outdoor (°C / °F) -20 (-4) -10 (14) 0 (32) 5 (41) 19 (66.2) 21189 17546 21166 17526 21142 17843 21084 17448 (80.6) 22 (71.6) 24305 14340 24281 14326 23148 14016 21930 13348 15.7 (60.26)
  • Page 120: Heat Mode Performance Data

    Heat Mode Performance Data Unit setting: Standard piping length, Hi Fan, Heat mode at 86°F Voltage: 230V 20.2.1 CS-E9RKUAW CU-E9RKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) Outdoor (°C / °F)
  • Page 121 20.2.5 CS-E9RKUAW CU-E9RKUA Maximum Capacity Indoor (°C / °F) Outdoor (°C / °F) -20 (-4) -8.3 (17.06) 1.7 (35.06) 8.3 (46.94) 12 (53.6) 23.9 (75.02) 24 (75.2) 7056 1301 9370 1320 12234 1459 14183 1512 14534 1525 15225 1424 20 (68)
  • Page 122: Service Data

    - Indoor room temperature: 80°F Dry Bulb/67°F Wet Bulb - Unit setting: Standard piping length, forced cooling at 60.8°F, Hi fan - Compressor frequency: Rated for cooling operation - Piping length: 24.6ft - Voltage: 230V 21.1.1 CS-E9RKUAW CU-E9RKUA 64.5 64.0 63.5 63.0 62.5 62.0...
  • Page 123 21.1.2 CS-E12RKUAW CU-E12RKUA 62.0 61.5 61.0 60.5 60.0 59.5 59.0 58.5 58.0 57.5 57.0 Outdoor Air Temperature (°F) Outdoor Air Temperature (°F) 150.0 148.0 146.0 144.0 142.0 140.0 138.0 136.0 134.0 132.0 Outdoor Air Temperature (°F)
  • Page 124 21.1.3 CS-E18RKUAW CU-E18RKUA 68.0 66.0 64.0 62.0 60.0 58.0 56.0 54.0 52.0 Outdoor Air Temperature (°F) Outdoor Air Temperature (°F) 175.0 170.0 165.0 160.0 155.0 150.0 145.0 140.0 135.0 130.0 125.0 Outdoor Air Temperature (°F)
  • Page 125 21.1.4 CS-E24RKUAW CU-E24RKUA 60.0 59.0 58.0 57.0 56.0 55.0 54.0 53.0 52.0 51.0 50.0 49.0 48.0 Outdoor Air Temperature (°F) 11.0 10.5 10.0 Outdoor Air Temperature (°F) 142.0 137.0 132.0 127.0 122.0 117.0 112.0 107.0 102.0 Outdoor Air Temperature (°F)
  • Page 126: Heat Mode Outdoor Air Temperature Characteristic

    - Indoor room temperature: 68°F Dry Bulb/-°F Wet Bulb - Unit setting: Standard piping length, forced heating at 86°F, Hi fan - Compressor frequency: Rated for Heating operation - Piping length: 24.6ft - Voltage: 230V 21.2.1 CS-E9RKUAW CU-E9RKUA 102.0 100.0 98.0 96.0 94.0 92.0...
  • Page 127 21.2.2 CS-E12RKUAW CU-E12RKUA 110.0 108.0 106.0 104.0 102.0 100.0 98.0 96.0 94.0 92.0 90.0 88.0 Outdoor Air Temperature (°F) Outdoor Air Temperature (°F) 420.0 400.0 380.0 360.0 340.0 320.0 300.0 280.0 260.0 Outdoor Air Temperature (°F)
  • Page 128 21.2.3 CS-E18RKUAW CU-E18RKUA 106.0 104.0 102.0 100.0 98.0 96.0 94.0 92.0 90.0 88.0 Outdoor Air Temperature (°F) Outdoor Air Temperature (°F) 420.0 400.0 380.0 360.0 340.0 320.0 300.0 280.0 Outdoor Air Temperature (°F)
  • Page 129 21.2.4 CS-E24RKUAW CU-E24RKUA 122.0 120.0 118.0 116.0 114.0 112.0 110.0 108.0 106.0 104.0 102.0 Outdoor Air Temperature (°F) 12.0 11.5 11.0 10.5 10.0 Outdoor Air Temperature (°F) 520.0 500.0 480.0 460.0 440.0 420.0 400.0 380.0 360.0 340.0 Outdoor Air Temperature (°F)
  • Page 130: Piping Length Correction Factor

    21.3 Piping Length Correction Factor The characteristic of the unit has to be corrected in accordance with the piping length. 21.3.1 CS-E9RKUAW CU-E9RKUA CS-E12RKUAW CU-E12RKUA 1.040 1.030 1.020 1.010 1.000 0.990 0.980 0.970 0.960 13.5 17.5 21.5 25.5 29.5 33.5 37.5...
  • Page 131 21.3.2 CS-E18RKUAW CU-E18RKUA CS-E24RKUAW CU-E24RKUA 1.020 1.010 1.000 0.990 0.980 0.970 0.960 0.950 19.5 29.5 39.5 49.5 59.5 69.5 79.5 89.5 99.5 Piping Length (ft) 1.010 1.000 0.990 0.980 0.970 0.960 19.5 29.5 39.5 49.5 59.5 69.5 79.5 89.5 99.5 Piping Length (ft) Note: The graphs show the factor after added right amount of additional refrigerant.
  • Page 132: Exploded View And Replacement Parts List

    22. Exploded View and Replacement Parts List 22.1 Indoor Unit 22.1.1 CS-E9RKUAW CS-E12RKUAW CWH55025J CWH55051J 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 133 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-E9RKUAW CS-E12RKUAW REMARK CHASSIS COMPLETE CWD50C1633 ← FAN MOTOR L6CBYYYL0055 ← CROSS-FLOW FAN COMPLETE CWH02C1076 ← BEARING ASSY CWH64K007 ← SCREW - CROSS-FLOW FAN CWH551146 ← PARTICULAR PIECE CWD933067 ← EVAPORATOR CWB30C5033...
  • Page 134 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-E9RKUAW CS-E12RKUAW REMARK SHOCK ABSORBER ( L ) CWG713386 ← SHOCK ABSORBER ( R ) CWG713387 ← C.C.CASE CWG567355 ← AIR PURIFYING FILTER CWD00C1141 ← BAG COMPLETE (TUBE CONNECTOR) CWH82C2030 ← (Note) ...
  • Page 135 22.1.2 CS-E18RKUAW CS-E24RKUAW CWH55025J CWH55051J 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 136 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-E18RKUAW CS-E24RKUAW REMARK CHASSIS COMPLETE CWD50C1637 ← FAN MOTOR L6CBYYYL0056 ← CROSS-FLOW FAN COMPLETE CWH02C1077 ← BEARING ASSY CWH64K007 ← SCREW - CROSS-FLOW FAN CWH551146 ← PARTICULAR PIECE CWD933067 ← EVAPORATOR CWB30C3963 CWB30C3967 FLARE NUT (LIQUID) CWT251030...
  • Page 137 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-E18RKUAW CS-E24RKUAW REMARK REMOTE CONTROL HOLDER CWH361078 ← CWG861498 ← SHOCK ABSORBER ( L ) CWG713402 ← SHOCK ABSORBER ( R ) CWG713403 ← C.C. CASE CWG567455 ← AIR PURIFYING FILTER CWD00C1141 ←...
  • Page 138: Outdoor Unit

    22.2 Outdoor Unit 22.2.1 CU-E9RKUA CU-E12RKUA 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 139 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-E9RKUA CU-E12RKUA REMARK CHASSIS COMPLETE CWD50K2081A ← FAN MOTOR BRACKET CWD541089 ← SCREW - FAN MOTOR BRACKET CWH551217 ← FAN MOTOR ARW6404AC ← SCREW - FAN MOTOR MOUNT CWH55252J ← PROPELLER FAN ASSY CWH03K1014 ←...
  • Page 140 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-E9RKUA CU-E12RKUA REMARK SOUND PROOF MATERIAL CWG302292 ← SOUND PROOF MATERIAL CWG302569 ← (Note)  All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488).  “O” marked parts are recommended to be kept in stock.
  • Page 141 22.2.2 CU-E18RKUA CU-E24RKUA 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 142 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-E18RKUA CU-E24RKUA REMARK CHASSIS COMPLETE CWD52K1228A ← ANTI - VIBRATION BUSHING CWH50055 ← COMPRESSOR 5KD240XAF21 ← NUT - COMPRESSOR MOUNT CWH561049 ← FAN MOTOR BRACKET CWD541127 ← FAN MOTOR EHDS80CAC ← SCREW - FAN MOTOR BRACKET CWH551217 ←...
  • Page 143 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-E18RKUA CU-E24RKUA REMARK SHOCK ABSORBER ( R ) CWG712880 ← SHOCK ABSORBER ( L ) CWG712879 ← C.C. CASE CWG565614 ← ELECTRONIC CONTROLLER - NF CWA747077 ← (Note)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488). ...