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TABLE OF CONTENTS
1 Safety Precaution ------------------------------------------------ 2
2 Specifications ----------------------------------------------------- 4
2.1. CS-A18GKD CU-A18GKD ----------------------------- 4
2.2. CS-A24GKD CU-A24GKD ------------------------------ 6
3 Features ------------------------------------------------------------- 8
4 Location of Controls and Components ------------------- 9
4.1. Product Overview------------------------------------------ 9
5 Dimensions--------------------------------------------------------10
5.1. Indoor Unit--------------------------------------------------10
5.2. Outdoor Unit ----------------------------------------------- 11
6 Refrigeration Cycle Diagram --------------------------------12
7 Block Diagram----------------------------------------------------13
8 Wiring Connection Diagram ---------------------------------14
9 Electronic Circuit Diagram -----------------------------------15
10 Printed Circuit Board-------------------------------------------16
10.1. Indoor Unit (Main Printed Circuit Board)------------16
10.2. Indoor Unit (Power Printed Circuit Board)----------18
10.3. Outdoor Unit (Main Printed Circuit Board) ---------19
CS-A18GKD CU-A18GKD
CS-A24GKD CU-A24GKD
PAGE
10.4. Indicator panel -------------------------------------------- 20
11 Installation Instruction ---------------------------------------- 21
11.1. Indoor Unit ------------------------------------------------- 22
11.2. Outdoor Unit----------------------------------------------- 25
12 Operation and Control ---------------------------------------- 27
12.1. Heating Operation --------------------------------------- 27
12.2. Cooling Operation---------------------------------------- 28
12.3. Soft Dry Operation --------------------------------------- 29
12.4. Automatic Operation ------------------------------------ 30
12.5. Operation Control ---------------------------------------- 31
12.6. Indoor Fan Speed Control ----------------------------- 37
12.7. Outdoor Fan Speed Control --------------------------- 39
12.8. Vertical Airflow Direction Control --------------------- 39
12.9. Horizontal Airflow Direction Control ----------------- 40
12.10. Powerful Operation -------------------------------------- 41
12.11. Quiet Operation------------------------------------------- 42
12.12. Timer Control---------------------------------------------- 43
12.13. Random Auto Restart Control ------------------------ 44
© 2006 Panasonic HA Air-Conditioning (M) Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
Order No. MAC0612064C8
Air Conditioner
PAGE
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Summary of Contents for Panasonic CS-A18GKD
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Page 1: Table Of Contents
12.12. Timer Control---------------------------------------------- 43 10.3. Outdoor Unit (Main Printed Circuit Board) ---------19 12.13. Random Auto Restart Control ------------------------ 44 © 2006 Panasonic HA Air-Conditioning (M) Sdn. Bhd. (11969-T). All rights reserved. Unauthorized copying and distribution is a violation of law. -
Page 2: Safety Precaution
12.14. Remote Control Signal Receiving Sound ---------- 44 15.1. Indoor Electronic Controllers and Control 12.15. Patrol Operation ------------------------------------------ 44 Board Removal Procedures -------------------------- 53 12.16. e-ion Operation ------------------------------------------- 46 15.2. Indoor Fan Motor and Cross Flow Fan 13 Servicing Mode -------------------------------------------------- 49 Removal Procedures ----------------------------------- 56 13.1. - Page 3 9. It is desirable that the amount of residual oil is less than 40 mg/10 m. 10. Do not modify the length of the power supply cord or use of the extension cord, and do not share the single outlet with other electrical appliances.
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Page 4: Specifications
2 Specifications 2.1. CS-A18GKD CU-A18GKD ITEM UNIT INDOOR UNIT OUTDOOR UNIT Performance Test Condition NEW JIS 5.3 - 5.3 Capacity BTU/h 18,100 - 18,100 3.08 - 3.01 BTU/hW 10.52 - 10.28 Noise Level dB (A) High 43 - 43, Low 38 - 38 High 53 - 54 5.65 - 5.70... - Page 5 1. Cooling capacities are based on indoor temperature of 27°C D.B. (80.6°F D.B.), 19.0°C W.B. (66.2°F W.B.) and outdoor air temperature of 35°C D.B. (95°F D.B.), 24°C D.B. (75.2°F W.B.) 2. Heating capacities are based on indoor temperature of 20°C D.B. (68°F D.B.) and outdoor air temperature of 7°C D.B. (44.6°F D.B.), 6°C W.B.
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Page 6: Cs-A24Gkd Cu-A24Gkd
2.2. CS-A24GKD CU-A24GKD ITEM UNIT INDOOR UNIT OUTDOOR UNIT Performance Test Condition NEW JIS 7.03 - 7.03 Capacity BTU/h 24,000 - 24,000 2.77 - 2.72 BTU/hW 9.45 - 9.30 Noise Level dB (A) High 47 - 47, Low 41 - 41 High 53 - 54 7.80 - 7.80 Capacity... - Page 7 1. Cooling capacities are based on indoor temperature of 27°C D.B. (80.6°F D.B.), 19.0°C W.B. (66.2°F W.B.) and outdoor air temperature of 35°C D.B. (95°F D.B.), 24°C D.B. (75.2°F W.B.) 2. Heating capacities are based on indoor temperature of 20°C D.B. (68°F D.B.) and outdoor air temperature of 7°C D.B. (44.6°F D.B.), 6°C W.B.
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Page 8: Features
3 Features • High efficiency. • Compact design. • Wider range of horizontal discharge air. • Air Filter with function to reduce dust and smoke. • Automatic air swing and manual adjusted by Remote Control for horizontal and vertical airflow. •... -
Page 9: Location Of Controls And Components
4 Location of Controls and Components 4.1. Product Overview 4.1.1. Indoor Unit 4.1.2. Outdoor Unit 4.1.3. Remote Control... -
Page 10: Dimensions
5 Dimensions 5.1. Indoor Unit... -
Page 11: Outdoor Unit
5.2. Outdoor Unit... -
Page 12: Refrigeration Cycle Diagram
6 Refrigeration Cycle Diagram... -
Page 13: Block Diagram
7 Block Diagram... -
Page 14: Wiring Connection Diagram
8 Wiring Connection Diagram... -
Page 15: Electronic Circuit Diagram
9 Electronic Circuit Diagram... -
Page 16: Printed Circuit Board
10 Printed Circuit Board 10.1. Indoor Unit (Main Printed Circuit Board) -
Page 18: Indoor Unit (Power Printed Circuit Board)
10.2. Indoor Unit (Power Printed Circuit Board) -
Page 19: Outdoor Unit (Main Printed Circuit Board)
10.3. Outdoor Unit (Main Printed Circuit Board) -
Page 20: Indicator Panel
10.4. Indicator panel... -
Page 21: Installation Instruction
11 Installation Instruction Indoor/Outdoor Unit Installation Diagram SELECT THE BEST LOCATION INDOOR UNIT • There should not be any heat source or steam near the unit. • There should not be any obstacles blocking the air circulation. • A place where air circulation in the room is good. •... -
Page 22: Indoor Unit
11.1. Indoor Unit 11.1.1. HOW TO FIX INSTALLATION PLATE 11.1.2. TO DRILL A HOLE IN THE WALL INSTALL SLEEVE The mounting wall is strong and solid enough to prevent it from the vibration. PIPING 1. Insert the piping sleeve to the hole. 2. - Page 23 3. For the embedded piping (This can be used for left rear piping and left bottom piping also.)
- Page 24 11.1.4. CONNECT THE CABLE TO THE INDOOR UNIT 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 3 × 2.5 mm (C18GK, C24GK, RS/RU-C18/24GK) or 5 ×...
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Page 25: Outdoor Unit
11.2. Outdoor Unit 11.2.1. 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. - Page 26 11.2.3. 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 and High side of a charging set and the service port of the 3-way valve. •...
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Page 27: Operation And Control
12 Operation and 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 16°C to 30°C. -
Page 28: 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 16°C to 30°C. -
Page 29: 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 30: 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 31: Operation Control
• The operation mode judging temperature and standard setting temperature can be increased by 2°C permanently, by open the circuit of JX03 at printed circuit board indoor unit. 12.5. Operation Control (For 11.5.1. to 11.5.7. information applies only to Cooling and Soft Dry Operation) 12.5.1. - Page 32 12.5.4. Freezing Prevention Control • If the temperature of the indoor heat exchanger falls below 2°C continuously for 4 minutes or more, the compressor turns off. The fan speed setting remains the same. • This phenomenon is to protect the indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid form returning to the compressor.
- Page 33 b. QLo fan speed Dew formation may occurs at QLo cool, therefore QLo cool is operated only 1 hr 30 min (1 hr QLo, 30 min QLo +100 rpm). After that, it operates at QLo +180rpm (However Quiet LED remains on). 2.
- Page 34 – During Anti-dew condensation prevention, Airflow Direction Manual control angle change from 0°, 11°, 22°, 33°, 44° to 14°, 18°, 22°, 26°, 30° under Cooling and Soft Dry operation mode. (For 11.5.8 to 11.5.14 information applies only to Heating Operation) 12.5.8.
- Page 35 12.5.11. 4-Way Valve Control • 4-way valve always on during Heating operation. (except deicing operation) • When the unit is switched off by remote control during Heating operation, the 4-way valve stay at Heating position for 5 minutes. • This is to prevent the refrigerant flow process sound for being occur. 12.5.12.
- Page 36 a) Normal Deicing Time Diagram (b) Overload Deicing Time Diagram...
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Page 37: Indoor Fan Speed Control
12.6. Indoor Fan Speed Control • Indoor Fan Speed can be set using remote control. 12.6.1. Fan Speed Rotation Chart Speed CS-A24GKD CS-A18GKD Cool, Dry Heat S Hi 1650 1430 1570 1400 1480 1320 1380 1270 1280 1190 1070 S Lo... - Page 38 • 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 39: Outdoor Fan Speed Control
12.6.3. 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. 12.7. Outdoor Fan Speed Control •... -
Page 40: Horizontal Airflow Direction Control
12.9. Horizontal Airflow Direction Control 12.9.1. 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 41: Powerful Operation
12.10. Powerful Operation • The Powerful operation is 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 42: Quiet Operation
12.11. Quiet Operation • The Quiet operation is 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 43: 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 44: Random Auto Restart Control
12.13. 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 45 c. Patrol operation disable • To disable the Patrol Operation during unit start (default) with “OFF/ON” button, press “Patrol” button and hold for 5 seconds, then release. • To disable the Patrol Operation, press “Patrol” button and hold for 15 seconds, then release. C.
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Page 46: E-Ion Operation
e. Indicator • When Patrol operation starts, Patrol Sensor indicator ON. • When e-ion operation starts based on dirtiness level, e-ion indicator ON. f. Remote Control Receiving Sound → Patrol Mode Normal Operation : Beep • → Stop Patrol Mode : Long Beep •... - Page 47 C.Control Content a. Indoor fan control • During any operation mode combines with e-ion operation, fan speed follows respective operation mode. • During e-ion individual operation - only Auto Fan Speed and no Powerful operation is allowed. Even if Fan Speed button is pressed, no signal is sent to air conditioner, and no change on LCD display.
- Page 48 Troubleshooting Methods • Press “e-ion” button or “OFF/ON” button to stop the operation and check the e-ion Air Purifying system main connector to PCB. • After that, press “e-ion” button again to confirm the e-ion indicator not blinking. • The 24 times counter will be clear after 10 minutes of normal operation or when operation stops. Error Reset Method •...
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Page 49: Servicing Mode
13 Servicing Mode 13.1. 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. -
Page 50: Remote Control Button
13.3. Remote Control Button 13.3.1. SET BUTTON • To check current remote control transmission code - Press for more than 10 seconds • To change the air quality sensor sensitivity - Press and release with pointer. - Press the Timer Decrement button to select sensitivity: 1. -
Page 51: Troubleshooting Guide
14 Troubleshooting Guide 14.1. 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 52 14.1.1. 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 53: Disassembly And Assembly Instructions
15 Disassembly and Assembly Instructions WARNING • Cautions! 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 56: Indoor Fan Motor And Cross Flow Fan Removal Procedures
15.2. Indoor Fan Motor and Cross Flow Fan Removal Procedures... -
Page 58: Technical Data
16 Technical Data 16.1. Thermostat Characteristics... -
Page 59: Operation Characteristics
16.2. Operation Characteristics... -
Page 67: Exploded View And Replacement Parts List
17 Exploded View and Replacement Parts List 17.1. 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 68 REF. NO. PART NAME & DESCRIPTION QTY. CS-A18GKD CS-A24GKD REMARKS ← CHASSY COMPLETE CWD50C1520 ← FAN MOTOR CWA981149J ← CROSS FLOW FAN COMPLETE CWH02C1010 ← SCREW - CROSS FLOW FAN CWH551146 ← BEARING ASS’Y CWH64K007 EVAPORATOR CWB30C2148 CWB30C1572 ← FLARE NUT (1/4”) CWT251026 FLARE NUT (1/2”) (5/8”)
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Page 69: Outdoor Unit
17.2. 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 70 REF. NO. PART NAME & DESCRIPTION QTY. CU-A18GKD CU-A24GKD REMARKS ← CHASSY ASS’Y CWD50K2087 COMPRESSOR 2JS324D3AB07 2JS438D3JA02 ← ANTI - VIBRATION BUSHING CWH50055 ← NUT - COMPRESSOR UNIT CWH561049 ← PACKING CWB81043 CONDENSER CWB32C2042 CWB32C2044 ← SOUND PROOF BOARD ASS’Y CWH151051 ←...