Table of Contents
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TABLE OF CONTENTS
1 Safety Precautions----------------------------------------------- 3
2 Specifications ----------------------------------------------------- 5
3 Features ------------------------------------------------------------- 7
4 Location of Controls and Components ------------------- 8
4.1. Indoor Unit--------------------------------------------------- 8
4.2. Outdoor Unit ------------------------------------------------ 8
4.3. Remote Control -------------------------------------------- 8
5 Dimensions--------------------------------------------------------- 9
5.1. Indoor Unit--------------------------------------------------- 9
5.2. Outdoor Unit -----------------------------------------------10
6 Refrigeration Cycle Diagram --------------------------------11
7 Block Diagram----------------------------------------------------12
8 Wiring Connection Diagram ---------------------------------13
9 Electronic Circuit Diagram -----------------------------------14
10 Printed Circuit Board-------------------------------------------15
10.1. Indoor Unit (Main Printed Circuit Board)------------15
11 Installation Instruction-----------------------------------------18
11.1. Select The Best Location -------------------------------18
11.2. Indoor/Outdoor Unit Installation Diagram-----------18
11.3. Indoor Unit--------------------------------------------------19
11.4. Outdoor Unit -----------------------------------------------23
Indoor Unit
CS-A18JKD
CS-A24JKD
PAGE
12 Operation Control----------------------------------------------- 26
12.1. Heating Operation --------------------------------------- 26
12.2. Cooling Operation---------------------------------------- 27
12.3. Soft Dry Operation --------------------------------------- 28
12.4. Automatic Operation ------------------------------------ 29
12.5. Indoor Fan Speed Control ----------------------------- 30
12.6. Outdoor Fan Speed Control --------------------------- 32
12.7. Vertical Airflow Direction Control --------------------- 32
12.8. Horizontal Airflow Direction Control ----------------- 33
12.9. Powerful Operation -------------------------------------- 34
12.10. Quiet Operation------------------------------------------- 35
12.11. Timer Control---------------------------------------------- 36
12.12. Random Auto Restart Control ------------------------ 37
12.13. Remote Control Signal Receiving Sound ---------- 37
12.14. Patrol Operation ------------------------------------------ 37
12.15. e-ion Operation ------------------------------------------- 40
13 Protection Control ---------------------------------------------- 42
13.2. 7 Minutes Time Save Control ------------------------- 42
13.3. 60 Seconds Forced Operation------------------------ 42
13.4. Starting Current Control -------------------------------- 42
© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2008.
Unauthorized copying and distribution is a violation of law.
Order No. PHAAM0810025C8
Air Conditioner
Outdoor Unit
CU-A18JKD
CU-A24JKD
PAGE
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Summary of Contents for Panasonic CS-A18JKD
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Page 1: Table Of Contents
13.2. 7 Minutes Time Save Control ------------------------- 42 11.3. Indoor Unit--------------------------------------------------19 13.3. 60 Seconds Forced Operation------------------------ 42 13.4. Starting Current Control -------------------------------- 42 11.4. Outdoor Unit -----------------------------------------------23 © Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2008. Unauthorized copying and distribution is a violation of law. - Page 2 13.5. Freezing Prevention Control -------------------------- 42 13.6. Compressor Reverse Rotation Protection Control ------------------------------------------------------ 43 13.7. Dew Prevention Control -------------------------------- 43 13.8. Restart Control (Time Delay Safety Control) ------ 43 13.9. Compressor Reverse Rotation Protection Control ------------------------------------------------------ 43 13.10. Overload Protection Control --------------------------- 44 13.11.
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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 20. After completion of installation or service, confirm there is no leakage or refrigerant gas. It may generate toxic gas when the refrigerant contacts with fire. 21. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when refrigerant contacts with fire. 22.
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Page 5: Specifications
2 Specifications Indoor CS-A18JKD CS-A24JKD Model Outdoor CU-A18JKD CU-A24JKD Performance Test Condition NEW JIS NEW JIS Phase, Hz Single, 50 Single, 50 Power Supply 5.30 5.30 7.03 7.03 Capacity BTU/h 18100 18100 24000 24000 Running Current 12.3 12.2 Input Power 1.72k... - Page 6 Cooling: 13.8 (486) - 13.8 (486) Cooling: 15.4 (543) - 15.4 (543) /min (ft Heating: 14.8 (523) - 14.8 (523) Heating: 16.6 (587) - 16.6 (587) Cooling: 15.1 (532) - 15.1 (532) Cooling: 17.0 (600) - 17.0 (600) /min (ft Heating: 15.3 (542) - 15.3 (542) Heating: 17.2 (606) - 17.2 (606) Indoor Airflow...
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Page 7: Features
3 Features • E-ion Air Purifying System with Patrol Sensor - Active e-ions are released to catch dust particles and bring them back the large positively charged filter. - Patrol Sensor color changes to indicate the dirt level in the air. •... -
Page 8: Location Of Controls And Components
4 Location of Controls and Components 4.1. Indoor Unit 4.2. Outdoor Unit 4.3. Remote Control... -
Page 9: Dimensions
5 Dimensions 5.1. Indoor Unit... -
Page 10: Outdoor Unit
5.2. Outdoor Unit... -
Page 11: Refrigeration Cycle Diagram
6 Refrigeration Cycle Diagram... -
Page 12: Block Diagram
7 Block Diagram... -
Page 13: Wiring Connection Diagram
8 Wiring Connection Diagram Resistance of Outdoor Fan Motor Windings Resistance of Compressor Windings MODEL CU-A18JKD CU-A24JKD MODEL CU-A18JKD CU-A24JKD CONNECTION CWA951385J CWA951353J CONNECTION 2JS318D3AA04 2JS438D3JA02 93 : 74.6 : 1.618 : 0.830 : BLUE - YELLOW C - R 124 : 122.2 : 3.718 :... -
Page 14: Electronic Circuit Diagram
9 Electronic Circuit Diagram... -
Page 15: Printed Circuit Board
10 Printed Circuit Board 10.1. Indoor Unit (Main Printed Circuit Board) - Page 16 10.1.1. Power Printed CIrcuit Board 10.1.2. High Voltage Power Supply Printed Circuit Board...
- Page 17 10.1.3. Indicator Printed Circuit Board 10.1.4. Receiver Printed Circuit Board...
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Page 18: Installation Instruction
11 Installation Instruction 11.1. Select The Best Location 11.2. Indoor/Outdoor Unit INDOOR UNIT Installation Diagram • Do not install the unit in excessive oil fume area such as kitchen, workshop and etc. • There should not be any heat source or steam near the unit. •... -
Page 19: Indoor Unit
11.3. Indoor Unit 11.3.1. How To Fix Installation Plate The mounting wall is strong and solid enough to prevent it from the vibration. The centre of installation plate should be at more than 1 at right and left of the wall. The distance from installation plate edge to ceiling should more than 2. - Page 20 11.3.3. Indoor Unit Installation...
- Page 22 11.3.4. Connect The Cable To The Indoor Unit 1. The inside and outside connecting cable can be connected without removing the front grille. • Ensure the colour of wires of outdoor unit and the terminal Nos. are the same to the indoor’s respectively. •...
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Page 23: Outdoor Unit
11.4. Outdoor Unit 11.4.1. 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). 2. When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails. - Page 24 11.4.3. Evacuation Of The Equipment 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. • Be sure to connect the end of the charging hose with the push pin to the service port. 2.
- Page 25 11.4.4. Connect The Cable To The Outdoor Unit a) Indoor Power Supply Model (3/4 ~ 2.5HP) 1. Remove the control board cover from the unit by loosening the screw. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 5 u 1.5 mm (3/4 ~ 1.5HP), 5 u 2.5 mm (2.0 ~ 2.5HP) flexible cord, type designation 245 IEC 57 or heavier cord.
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Page 26: Operation Control
12 Operation Control 12.1. Heating Operation • Heating operation can be set using remote control. • This operation is applied to warm 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 16qC to 30qC. -
Page 27: Cooling Operation
12.2. 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 16qC to 30qC. -
Page 28: Soft Dry Operation
12.3. Soft Dry Operation • Soft Dry operation can be set using remote control. • Soft Dry operation is applied to dehumidify and to perform a gentle cooling to the room. • This operation starts when the intake air temperature sensor reaches the setting temperature on the remote control. •... -
Page 29: Automatic Operation
12.4. Automatic Operation • Automatic operation can be set using remote control. • This operation starts to operate with indoor fan at SLo speed for 25 seconds to judge the intake air temperature. • After judged the temperature, the operation mode is determined by referring to the below standard. •... -
Page 30: Indoor Fan Speed Control
12.5. Indoor Fan Speed Control • Indoor Fan Speed can be set using remote control. 12.5.1. Fan Speed Rotation Chart Speed CS-A24JKD CS-A18JKD Cool, Dry Heat S Hi 1660 1440 1570 1400 1480 1320 1380 1270 1280 1190 1070 S Lo... - Page 31 • Auto Fan Speed during Cooling operation: 1. Indoor fan will rotate alternately between off and on as shown in below diagram. 2. At the beginning of each compressor start operation, indoor fan will increase fan speed gradually for deodorizing purpose. 3.
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Page 32: Outdoor Fan Speed Control
12.5.3. 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. 12.6. Outdoor Fan Speed Control •... -
Page 33: Horizontal Airflow Direction Control
12.8. Horizontal Airflow Direction Control 12.8.1. Auto Control • When the horizontal airflow direction is set to Auto using the remote control, the vanes swings left and right for Cooling and Soft Dry (0°-44°), Heating (8°-36°) as shown in the diagram. -
Page 34: Powerful Operation
12.9. Powerful Operation • To achieve the setting temperature quickly. (Cooling and Soft Dry Operation condition) • When Powerful operation is set, the setting temperature will be automatically decreased 3°C internally against the present setting temperature (Lower temperature limit: 16°C). •... -
Page 35: Quiet Operation
12.10. Quiet Operation • To provide quiet cooling/heating operation condition compare to normal operation. (Cooling and Soft Dry Operation condition) • Once the Quiet Mode is set at the remote control, Quiet Mode LED illuminates. The sound level will reduce either around 2 dB(A) for Lo fan speed or 3 dB(A) for Hi/Me fan speed against the present sound level operation. -
Page 36: Timer Control
(Heating Operation condition) • When the Quiet Mode is set at the remote control, Quiet Mode LED illuminates. The sound level will reduce either around 2 dB (Lo) or 3 dB (Hi, Me), against the present sound level operation. • Quiet setting of fan speed rpm refer to Indoor Fan Speed Control. •... -
Page 37: Random Auto Restart Control
12.12. Random Auto Restart Control • If there is a power failure during operation, the air conditioner will automatically restart after 3 to 4 minutes when the power is resumed. • It will start with previous operation mode and airflow direction. •... - Page 38 • Patrol Sensor Control - First 2 minutes from Patrol function activates is stabilization time, during stabilization time, no air dirtiness level is monitored. The Air Dirtiness level is set to Clean, Patrol LED turns blue color. - After that, Patrol sensor starts to record the resistance value at fixed interval. Higher resistance value indicates cleaner air. - The air dirtiness level is monitored by comparing the current resistance value with maximum resistance value from time to time to get the Air Dirtiness Value.
- Page 39 • Indicator - When Patrol operation starts, Patrol LED is ON with 3 different colors: Patrol LED Air Quality Blue Clean Orange Moderate Dirty - Then e-ion operation starts based on dirtiness level, both Patrol LED and e-ion LED are ON. •...
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Page 40: E-Ion Operation
12.15. e-ion Operation • This operation provides clean air by producing negative ions to attract dust captured at the positively charged active e-ion filters. • e-ion operation start condition - During unit running at any operation mode, if “e-ion” button is pressed, combination operation (operation mode + e-ion operation) starts. - Page 41 • Indicator - When e-ion operation starts, e-ion indicator ON. • Remote Control Receiving Sound o e-ion Operation - Normal Operation : Beep o Normal Operation - e-ion Operation : Beep o e-ion individual Operation - Stop : Beep o Stop - e-ion individual Operation : Long Beep •...
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Page 42: Protection Control
13 Protection Control (For 13.1. to 13.7. information applies only to Cooling and Soft Dry Operation) 13.1. 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. - Soft Dry operation - the compressor stops for 6 minutes (minimum) before resume operation. -
Page 43: Compressor Reverse Rotation Protection Control
13.6. 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 2.5qC or less for continuous 2 minutes, compressor will stop and restart automatically. •... -
Page 44: Overload Protection Control
13.10. Overload Protection Control • Outdoor Fan Control - If the temperature of the Outdoor Heat Exchanger less than -3°C, Outdoor Fan is ON. The Outdoor Fan stop, when Outdoor Heat Exchanger temperature is Tb or more according to Outdoor Air Temperature region as table below: The Outdoor Fan restarts when the indoor heat exchanger temperature falls to 49°C. -
Page 45: Cold Draft Prevention Control
13.13. Cold Draft Prevention Control 13.14. Deice Control Deice starts to prevent frosting at outdoor heat exchanger. • Normal Deice Deice operation detection commences in Heating operation starts or 60 minutes after previous deice operation. If the outdoor piping temperature drops to -4°C for 50 sec. continuously during compressor is in operation, deice will start. (There is no detection during Outdoor Fan stops.) •... - Page 46 a) Normal Deice Time Diagram (b) Overload Deice Time Diagram...
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Page 47: Servicing Mode
14 Servicing Mode 14.1. Auto OFF/ON Button 1. AUTO OPERATION MODE The Auto 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 malfunction. 2. -
Page 48: Remote Control Button
14.2. Remote Control Button 14.2.1. SET BUTTON • To check current remote control transmission code - Press for more than 10 seconds - Press “TIMER SET” button until a “beep” sound is heard as confirmation of transmission code change. • To change the air quality sensor sensitivity - Press and release with pointer. -
Page 49: Troubleshooting Guide
15 Troubleshooting Guide 15.1. 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. 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 on the right. - Page 50 15.1.1. Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Heating Mode 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 or Strainer...
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Page 51: Disassembly And Assembly Instructions
16 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. 16.1. - Page 52 16.1.3. To remove electronic controller...
- Page 53 16.1.4. To remove discharge grille 16.1.5. To remove control board...
- Page 54 16.1.6. To remove cross flow fan and indoor fan motor...
- Page 55 16.1.7. To align cross flow fan...
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Page 56: Technical Data
17 Technical Data 17.1. Thermostat Characteristics... -
Page 57: Operation Characteristics
17.2. Operation Characteristics... -
Page 65: Exploded View And Replacement Parts List
18 Exploded View and Replacement Parts List 18.1. Indoor Unit 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 66 REF. NO. PART NAME & DESCRIPTION QTY. CS-A18JKD CS-A24JKD REMARKS CHASSY COMPLETE CWD50C1623 FAN MOTOR L6CBYYYL0037 ARW7614AC CROSS FLOW FAN COMPLETE CWH02C1077 BEARING ASS’Y CWH64K007 SCREW - CROSS FLOW FAN CWH551146 ION GENERATOR CWH94C0028 EVAPORATOR CO. CWB30C2730 CWB30C2779 FLARE NUT (LIQUID)
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Page 67: Outdoor Unit
18.2. Outdoor Unit 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 68 REF. NO. PART NAME & DESCRIPTION QTY. CU-A18JKD CU-A24JKD REMARKS CHASSY ASS’Y CWD50K2087 COMPRESSOR 2JS318D3AA04 2JS438D3JA02 ANTI - VIBRATION BUSHING CWH50055 NUT - COMPRESSOR UNIT CWH561049 PACKING CWB81043 CONDENSER CWB32C2678 CWB32C2679 SOUND PROOF BOARD CWH151051 FAN MOTOR BRACKET CWD541055 SCREW - FAN MOTOR BRACKET CWH551217 FAN MOTOR CWA951385J...