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CONTENTS
CS-E18EKK CU-E18EKK
CS-E21EKK CU-E21EKK
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© 2005 Panasonic HA Air-Conditioning (M) Sdn Bhd
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
Order No: MAC0512116C1
Air Conditioner
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Summary of Contents for Panasonic CS-E18EKK
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Page 1: Table Of Contents
11.2. Indicator Panel 7 Wiring Diagram 12 Troubleshooting Guide 7.1. CS-E18EKK CS-E21EKK 12.1. Refrigeration Cycle System 7.2. CU-E18EKK CU-E21EKK © 2005 Panasonic HA Air-Conditioning (M) Sdn Bhd (11969-T). All rights reserved. Unauthorized copying and distribution is a violation of law. - Page 2 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 12.2. Relationship Between The Condition Of The Air 14.1. CS-E18EKK CU-E18EKK Conditioner And Pressure And Electric Current 14.2. CS-E21EKK CU-E21EKK 12.3. Breakdown Self Diagnosis Function 14.3. Sensible Capacity Chart 12.4. Error Codes Table 15 Exploded View And Replacement Parts List 13 Disassembly and Assembly Instructions 15.1.
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Page 3: Safety Precautions
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 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 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 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.
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Page 5: Specification
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 2 Specification 2.1. CS-E18EKK CU-E18EKK Unit CS-E18EKK CU-E18EKK Performance Test Condition Cooling Capacity 5.20 (1.30 - 5.80) BTu/h 17,700 (4,400 - 19,700) Heating Capacity 6.30 (1.30 - 7.70) BTu/h 21,400 (4,400 - 19,700) Moisture Removal... - Page 6 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK Unit CS-E18EKK CU-E18EKK Power Cord Length — Number of core-wire (1.5mm — Dimensions Height inch (mm) 10 - 13/16 (275) 29 - 17/32 (750) Width inch (mm) 39 - 9/32 (998) 34 - 7/16 (875)
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Page 7: Cs-E21Ekk Cu-E21Ekk
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 2.2. CS-E21EKK CU-E21EKK Unit CS-E21EKK CU-E21EKK Performance Test Condition Cooling Capacity 6.10 (1.30 - 6.85) BTu/h 20,800 (4,400 - 23,400) Heating Capacity 6.90 (1.30 - 8.30) BTu/h 23,400 (4,400 - 28,200) Moisture Removal Pint/h Power Source (Phase, Voltage, Cycle) ø... - Page 8 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK Unit CS-E21EKK CU-E21EKK Dimensions Height inch (mm) 10 - 13/16 (275) 29 - 17/32 (750) Width inch (mm) 29 - 9/32 (998) 34 - 7/16 (875) Depth inch (mm) 9 - 1/16 (230) 13 - 19/32 (345)
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Page 9: Location Of Controls And Components
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 3 Location of controls and components 3.1. Indoor Unit 3.2. Outdoor Unit 3.3. Remote Control... -
Page 10: Dimension
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 4 Dimension 4.1. Indoor Unit & Remote Control... -
Page 11: Outdoor Unit
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 4.2. Outdoor Unit... -
Page 12: Refrigeration Cycle Diagram
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 5 Refrigeration Cycle Diagram... -
Page 13: Block Diagram
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 6 Block Diagram... -
Page 14: Wiring Diagram
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 7 Wiring Diagram 7.1. CS-E18EKK CS-E21EKK... -
Page 15: Cu-E18Ekk Cu-E21Ekk
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 7.2. CU-E18EKK CU-E21EKK... -
Page 16: Printed Circuit Board
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 8 Printed Circuit Board 8.1. Indoor Unit... -
Page 17: Outdoor Unit
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 8.2. Outdoor Unit... -
Page 18: Installation Instructions
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 9 Installation Instructions 9.1. Select The Best Location INDOOR UNIT Indoor/Outdoor Unit Installation Diagram • There should not be any heat source or steam near the unit. • There should not be any obstacles blocking the air circulation. -
Page 19: Indoor Unit
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 9.2. Indoor Unit 9.2.1. HOW TO FIX INSTALLATION 9.2.2. TO DRILL A HOLE IN THE WALL PLATE AND INSTALL A SLEEVE OF PIPING The mounting wall is strong and solid enough to prevent it from the vibration. - Page 20 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 3. For the embedded piping (This can be used for left rear piping & left bottom piping also.)
- Page 21 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 9.2.4. INDOOR UNIT ELECTRICAL WIRING 1. Remove the control board metal cover. 2. Unscrew the conduit cover & fix the conduit connector to conduit cover with lock nut, then secure it against chassis. 3. Connecting wire between indoor unit and outdoor unit shall be UL listed or CSA approved 4 ×...
- Page 22 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 9.2.5. INSTALLATION OF SUPER ALLERU-BUSTER FILTER 1. Open the front panel. 2. Remove the air filter. 3. Put Super alleru-buster filter into place as shown in illustration at right. 9.2.6. HOW TO TAKE OUT FRONT GRILLE Please follow the steps below to take out front grille if necessary such as when servicing.
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Page 23: Outdoor Unit
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 9.3. Outdoor Unit 9.3.1. INSTALL THE OUTDOOR UNIT • After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram. 1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). - Page 24 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 9.3.3. EVACUATION OF THE EQUIPMENT WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. 1. 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.
- Page 25 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 9.3.4. OUTDOOR UNIT ELECTRICAL WIRING 1. Remove Top panel. 2. Remove Control Board Cover. 3. Remove Plugs. 4. Fix the conduit connectors to the conduit holes with lock- nuts, then secure them. 5. Connecting wire between indoor unit and outdoor unit should be UL listed or CSA approved 4 x AWG16 wire.
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Page 26: Operation And Control
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 10 Operation And Control 10.1. Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting. - Page 27 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 1. Automatic vertical airflow direction can be set using remote control; the vane swings up and down within the angles as stated above. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below.
- Page 28 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK b. Quiet operation stop condition 1. When one of the following conditions is satisfied, quiet operation stops: a. Powerful button is pressed. b. Stop by OFF/ON switch. c. Timer “off” activates. d. Quiet button is pressed again.
- Page 29 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK a. Powerful button is pressed. b. Stop by OFF/ON switch. c. Timer “off” activates. d. Quiet button is pressed again. 2. When quiet operation is stopped, operation is shifted to normal operation with previous setting.
- Page 30 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 10.1.5. ON Timer Control ON timer can be set using remote control, the unit with timer set will start operate earlier than the setting time. This is to provide a comfortable environment when reaching the set ON time.
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Page 31: Protection Control
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 10.2. Protection Control 10.2.1. Time Delay Safety Control • Compressor will not start for three minutes after stop of the operation. 10.2.2. 30 Seconds Forced Operation • Once compressor starts the operation, it will not stop its operation for 30 seconds. However, it can be stopped with the remote controller or the Auto button on the indoor unit. - Page 32 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 10.2.7. Compressor Protection Control (Refrigeration Cycle Abnormality) In cooling and Dry operations 1. When compressor is operated continuously for 5 minutes in the maximum cooling power: a running current of 0.7 - 1.4A and “[Indoor intake air temperature] - [Indoor heat exchanger temperature]” < 4°C, compressor will be stopped.
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Page 33: Servicing Mode
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 11 Servicing Mode 11.1. Auto Switch Operation The below operations will be performed by pressing the “AUTO” switch. 1. AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto Switch is pressed and release before 5 sec.. -
Page 34: Troubleshooting Guide
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 12 Troubleshooting Guide 12.1. 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 35: Relationship Between The Condition Of The Air
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 12.2. Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current Cooling Mode Heating Mode Condition of the air conditoner Low Pressure High Pressure Electric current Low Pressure High Pressure Electric current... -
Page 36: Breakdown Self Diagnosis Function
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 12.3. Breakdown Self Diagnosis Function 12.3.1. Self Diagnosis Function (Three Digits Alphanumeric Code) • Once abnormality has occurred during operation, the unit If no codes are matched, power LED will light up for 0.5 will stop its operation, and Timer or both Timer and ION seconds and no sound will be heard. -
Page 37: Error Codes Table
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 12.4. Error Codes Table Diagnosis Abnormality / Protection control Abnormality Emergency Primary location to verify display Judgement operation No abnormality detected — Normal operation — • Internal / external cable connections Indoor / outdoor abnormal >... -
Page 38: Disassembly And Assembly Instructions
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 13 Disassembly and Assembly Instructions • Caution! When handling electronic controller, be careful of electrostatic discharge. • Be sure to return the wiring to its original position. • There are many high voltage components within the heat sink cover so never touch the interior during operation. Wait at least two minutes after power has been turned off. - Page 39 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK...
- Page 40 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK...
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Page 41: Indoor Cross Flow Fan And Fan Motor
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 13.2. Indoor Cross Flow Fan and Fan Motor... -
Page 42: Outdoor Propeller Fan And Fan Motor
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 13.3. Outdoor Propeller Fan and Fan Motor... - Page 43 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK...
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Page 44: Technical Data
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 14 Technical Data 14.1. CS-E18EKK CU-E18EKK Cooling Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature: 27/19 °C Remote control setting: HI fan, COOL 16 °C Compressor frequency: rated cooling Voltage: 208 ~ 230 V... - Page 45 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK...
- Page 46 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK Heating Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature: 20 °C Remote control setting: HI fan, HEAT 30 °C Compressor frequency: rated heating Voltage: 208 ~ 230 V...
- Page 47 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK...
- Page 48 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK Cooling Characteristic at Different Piping Length Condition Indoor room temperature: 27/19 °C Remote control setting: HI fan, COOL 16 °C Compressor frequency: rated cooling Voltage: 208 ~ 230 V...
- Page 49 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK...
- Page 50 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK Heating Characteristic at Different Piping Length Condition Indoor room temperature: 20 °C Remote control setting: HI fan, HEAT 30 °C Compressor frequency: rated heating Voltage: 208 ~ 230 V...
- Page 51 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK...
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Page 52: Cs-E21Ekk Cu-E21Ekk
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 14.2. CS-E21EKK CU-E21EKK Cooling Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature: 27/19 °C Remote control setting: HI fan, COOL 16 °C Compressor frequency: rated cooling Voltage: 208 ~ 230 V... - Page 53 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK...
- Page 54 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK Heating Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature: 20 °C Remote control setting: HI fan, HEAT 30 °C Compressor frequency: rated heating Voltage: 208 ~ 230 V...
- Page 55 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK...
- Page 56 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK Cooling Characteristic at Different Piping Length Condition Indoor room temperature: 27/19 °C Remote control setting: HI fan, COOL 16 °C Compressor frequency: rated cooling Voltage: 208 ~ 230 V...
- Page 57 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK...
- Page 58 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK Heating Characteristic at Different Piping Length Condition Indoor room temperature: 20 °C Remote control setting: HI fan, HEAT 30 °C Compressor frequency: rated heating Voltage: 208 ~ 230 V...
- Page 59 CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK...
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Page 60: Sensible Capacity Chart
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 14.3. Sensible Capacity Chart Condition Indoor temperature : 27°C / 19°C Outdoor temperature : 35°C / 24°C ● CS-E18EKK CU-E18EKK 230V Outdoor Temperature (°C) Indoor wet bulb temperature 17.0°C 2.58 1.96 0.54 2.41 1.88 0.58 2.24... -
Page 61: Exploded View And Replacement Parts List
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 15 Exploded View And Replacement Parts List 15.1. CS-E18EKK CS-E21EKK 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 62: Cs-E18Ekk Cs-E21Ekk
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 15.2. CS-E18EKK CS-E21EKK REF. NO. PART NAME & DESCRIPTION QTY. CS-E18EKK CS-E21EKK Remarks ← CHASSY COMPLETE CWD50C1399 ← FAN MOTOR, DC 30W 3PH CWA981172J ← CROSS FLOW FAN COMPLETE CWH02C1010 ← SCREW - CROSS FLOW FAN CWH551146 ←... -
Page 63: Cu-E18Ekk Cu-E21Ekk
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 15.3. CU-E18EKK CU-E21EKK 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 64: Cu-E18Ekk Cu-E21Ekk
CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK 15.4. CU-E18EKK CU-E21EKK REF NO. DESCRIPTION & NAME QTY. CU-E18EKK CU-E21EKK Remarks ← CHASSY ASSY CWD50K2145A ← ANTI - VIBRATION BUSHING CWH50077 ← COMPRESSOR 5CS130XAD04 ← NUT - COMPRESSOR MOUNT CWH56000J ← SOUND PROOF MATERIAL CWMG302302 ←...