Panasonic CS-A7DKD, CS-A9DKD, CS-A12DKD, CU-A7DKD, CU-A9DKD Service Manual
...
Order No. MAC0501023C3
Air Conditioner
CS-A7DKD CU-A7DKD
CS-A9DKD CU-A9DKD
CS-A12DKD CU-A12DKD
CONTENTS
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Page |
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Page |
1 |
Features |
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2 |
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4.1. Indoor Unit & Remote Control |
12 |
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2 |
Functions |
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3 |
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4.2. Outdoor Unit |
13 |
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2.1. Remote Control |
3 |
5 |
Refrigeration Cycle Diagram |
14 |
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2.2. Indoor Unit |
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4 |
6 |
Block Diagram |
15 |
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2.3. Outdoor Unit |
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5 |
7 |
Wiring Diagram |
17 |
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3 |
Product Specifications |
6 |
8 |
Operation Details |
19 |
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3.1. CS-A7DKD |
CU-A7DKD |
6 |
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8.1. Heating Operation |
19 |
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3.2. CS-A9DKD |
CU-A9DKD |
8 |
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8.2. Cooling Operation |
20 |
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3.3. CS-A12DKD |
CU-A12DKD |
10 |
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8.3. Soft Dry Operation |
21 |
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4 |
Dimensions |
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12 |
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© 2005 Panasonic HA Air-Conditioning (M) Sdn Bhd |
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(11969-T). All rights reserved. Unauthorized copying |
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and distribution is a violation of law. |
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CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
8.4. Automatic Operation |
22 |
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12.3. Indoor Fan Motor And Cross Flow Fan Removal |
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8.5. Operation Control |
23 |
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Procedures |
64 |
8.6. Indoor Fan Speed Control |
30 |
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12.4. Auto OFF/ON Button |
65 |
8.7. Outdoor Fan Speed Control |
32 |
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12.5. Remote Control Reset |
66 |
8.8. Vertical Airflow Direction Control |
32 |
13 |
Troubleshooting Guide |
67 |
8.9. Horizontal Airflow Direction Control |
33 |
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13.1. Refrigeration Cycle System |
67 |
8.10. Powerful Operation |
33 |
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13.2. Relationship Between The Condition Of The Air |
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8.11. Quiet Operation |
35 |
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Conditioner And Pressure And Electric Current |
68 |
8.12. Ionizer Operation |
37 |
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13.3. Diagnosis Methods Of A Malfunction Of A Compressor |
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8.13. Timer Control |
38 |
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And 4-way Valve |
68 |
8.14. Random Auto Restart Control |
38 |
14 |
Technical Data |
69 |
8.15. Remote Control Signal Receiving Sound |
38 |
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14.1. Thermostat Characteristics |
69 |
9 Operating Instructions |
39 |
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14.2. Operation Characteristics |
70 |
10 Installation Instructions |
45 |
15 |
Exploded View (Indoor Unit) |
73 |
10.1. Safety Precautions |
45 |
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15.1. CS-A7DKD CS-A9DKD CS-A12DKD |
73 |
10.2. Attached accessories |
47 |
16 |
Replacement Parts List (Indoor Unit) |
74 |
10.3. Select the best location |
47 |
17 |
Exploded View (Outdoor Unit) |
75 |
10.4. Indoor/Outdoor Unit Installation Diagram |
47 |
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17.1. CU-A7DKD CU-A9DKD |
75 |
10.5. Indoor unit |
48 |
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17.2. CU-A12DKD |
76 |
10.6. Outdoor unit |
51 |
18 |
Replacement Parts List (Outdoor Unit) |
77 |
11 2-way, 3-way Valve |
56 |
19 |
Electronic Circuit Diagram |
79 |
11.1. Air Purging of the Piping and Indoor Unit |
57 |
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19.1. Indoor Unit & Outdoor Unit |
79 |
12 Servicing Information |
63 |
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19.2. Remote Control |
85 |
12.1. Distinction Of Lead Free (PbF) Printed Circuit Board |
63 |
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19.3. Print Pattern Indoor Unit Printed Circuit Board |
86 |
12.2. Indoor Electronic Controllers Removal Procedures |
63 |
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19.4. Print Pattern Indicator & Receiver Printed Circuit Board |
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88 |
1Features
•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 vertical airflow.
•Long installation piping.
−CS/CU-A7DK, CS/CU-A9DK, long piping up to 10 meter.
−CS/CU-A12DK, long piping up to 15 meter.
•Supersonic Air Purifying Device with SUPER allerubuster.
−Inactive various harmful airborne elements including allergen, viruses and bacteria.
−Generated supersonic waves enhance the ability to collect dust and dirt in the air.
•Quality Improvement
−Random auto restart after power failure for safety restart operation.
−Gas leakage protection.
−Prevent Compressor reverse cycle.
−Inner protector to protect Compressor.
−Noise prevention during soft dry operation.
−Blue Coated Condenser for high resistance to corrosion.
•Operation Improvement
−Quiet mode to provide quiet operation.
−Powerful mode to reach the desired room temperature quickly.
−Ionizer control for generating negative ion in discharge air.
−24-hour timer setting.
•Serviceability Improvement
−Removable and washable Front Panel.
2
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
2 Functions
2.1.Remote Control
3
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
2.2.Indoor Unit
AUTO
OFF / ON Automatic Operation Button
•Press for < 5 second to operate Automatic operation mode. Used when the remote control cannot be used.
•Press for ≥ 5 second to operate Cooling operation mode and compressor force to on (“beep” sound will heard). Used when test running or servicing.
•Within 20 second of Cooling operation, press continuously for 5 second to enter various setting mode. “beep, beep” sound will be heard. (Used to toggle remote control signal receiving sound or select remote control transmission code).
Operation Indication Lamps (LED)
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POWER (Green) ............. |
Lights up in operation, |
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blinks in Automatic |
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Operation judging and |
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Hot Start operation. |
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TIMER (Orange) ............ |
Lights up in Timer |
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Setting. |
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QUIET (Orange) ............. |
Lights up in Quiet |
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Operation. |
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POWERFUL (Orange) ...... |
Lights up in Powerful |
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Operation. |
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ION (Green) .................. |
Lights up in Ionizer |
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Operation. |
•SUPER
ALLERU-BUSTER (Blue) ... Lights up in operation.
Operation Mode
•Heating, Cooling, Soft Dry and Automatic Operation.
Powerful Operation
• Reaches the desired room temperature quickly.
Timer Operation
• Delay OFF/ON Timer control.
Quiet Operation
• To provide quiet operation.
Ionizer Operation
• Generate and discharge negative ion.
Random Auto Restart Control
•Unit will be restarted, when resume from power failure, at previous setting.
Indoor Fan Speed Control
•Manual control fan speed (High, Medium and Low).
•Automatic fan speed.
Airflow Direction Control
•Vertical airflow control can be adjusted automatically or manually by remote control.
•Horizontal airflow can be manually adjusted by hand.
Anti-Freezing Control
• To prevent indoor heat exchanger from freezing.
Starting Current Control
• To reduce the starting current.
Time Delay Safety Control
• Restarting is inhibited for appro. 3 minutes.
7 Minutes Time Save Control
• To reduce the built up humidity inside the room.
Anti-Dew Formation Control
•Anti-Dew Formation Control for indoor unit discharge area.
30 Minutes Time Save Control
• Heating operation only.
Hot-Start Control
•To prevent cold air being discharge during Heating operation starts.
Anti Cold Draft Control
•To prevent the cold draft during Heating mode operation in thermo off condition.
4
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
2.3.Outdoor Unit
5 |
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
3 Product Specifications
3.1.CS-A7DKD CU-A7DKD
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Unit |
Indoor Unit |
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Outdoor Unit |
Power Source (Phase, Voltage, Cycle) |
ø, V, Hz |
Single, 220 - 230, 50 |
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Cooling Capacity |
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kW (BTU/h) |
2.00 - 2.00 (6,820 - 6,820) |
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Heating Capacity |
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kW (BTU/h) |
2.10 - 2.10 (7,160 - 7,160) |
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Moisture Removal |
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l/h (Pint/h) |
1.3 (2.7) |
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Airflow Method |
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OUTLET |
SIDE VIEW |
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TOP VIEW |
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INTAKE |
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Air Volume |
Lo |
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m3/min (cfm) |
Cooling; 5.8 (205) - 5.8 (205) |
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— |
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Heating; 6.2 (219) - 6.2 (219) |
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Me |
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m3/min (cfm) |
Cooling; 6.8 (241) - 6.8 (241) |
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Heating; 6.8 (241) - 6.8 (241) |
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Hi |
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m3/min (cfm) |
Cooling; 7.8 (280) - 7.8 (280) |
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Cooling; 29.5 (1,040) - 30.0 |
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Heating; 9.0 (320) - 9.0 (320) |
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(1,060) |
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SHi |
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m3/min (cfm) |
Cooling; 9.1 (320) - 9.1 (320) |
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Heating; — |
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Noise Level |
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dB (A) |
Cooling; High 33 - 33, Low 26 - 26 |
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Cooling; High 46 - 47 |
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Heating; High 36 - 36, Low 28 - 28 |
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Heating; High 48 - 49 |
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Power level dB |
Cooling; High 46 - 46 |
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Cooling; High 61 - 62 |
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Heating; High 49 - 49 |
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Heating; High 64 - 65 |
Electrical Data |
Input Power |
kW |
Cooling; 0.61 - 0.63 |
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Heating; 0.50 - 0.525 |
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Running Current |
A |
Cooling; 2.9 - 2.8 |
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Heating; 2.4 - 2.4 |
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EER |
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W/W (BTU/hW) |
Cooling; 3.28 - 3.17 (11.2 - 10.8) |
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COP |
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- (BTU/hW) |
Heating; 4.2 - 4.0 (14.3 - 13.6) |
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Starting Current |
A |
12.4 |
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Piping Connection Port |
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inch |
G ; Half Union 3/8” |
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G ; 3-way valve 3/8” |
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(Flare piping) |
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inch |
L ; Half Union 1/4” |
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L ; 2-way valve 1/4” |
Pipe Size |
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inch |
G ; (gas side) 3/8” |
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G ; (gas side) 3/8” |
(Flare piping) |
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inch |
L ; (liquid side) 1/4” |
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L ; (liquid side) 1/4” |
Drain |
Inner diameter |
mm |
12 |
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— |
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Hose |
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Length |
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mm |
650 |
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Power Cord |
Length |
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m |
1.9 |
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Number of core-wire |
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3 (1.5 mm2) |
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Dimensions |
Height |
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inch (mm) |
11 - 1/32 (280) |
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20 - 3/32 (510) |
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Width |
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inch (mm) |
31 - 15/32 (799) |
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25 - 19/32 (650) |
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Depth |
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inch (mm) |
7 - 7/32 (183) |
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9 - 1/16 (230) |
Net Weight |
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lb (kg) |
20 (9.0) |
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53 (24) |
Compressor |
Description |
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— |
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Rotary (1 cylinder) |
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rolling piston type |
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Motor |
Type |
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Induction (2-poles) |
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Rated |
Output |
W |
— |
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550 |
6
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
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Unit |
Indoor Unit |
Outdoor Unit |
Fan Motor |
Description |
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Cross-flow Fan |
Propeller Fan |
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Material |
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AS + Glass Fiber 20% |
PP Resin |
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Type |
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Induction (4-poles) |
Induction (6-poles) |
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Input |
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W |
60.5 - 66.0 |
66 - 74.8 |
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Rated |
Output |
W |
15 |
30 |
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Fan Speed |
Low |
rpm |
Cooling; 780 - 780 |
— |
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Heating; 840 - 840 |
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Medium |
rpm |
Cooling; 920 - 920 |
— |
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Heating; 920 - 920 |
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High |
rpm |
Cooling; 1,050 - 1,050 |
800 - 830 |
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Heating; 1,220 - 1,220 |
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SuperHigh |
rpm |
Cooling; 1,220 - 1,220 |
— |
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Heating; — |
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Heat Exchanger |
Description |
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Evaporator |
Condenser |
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Tube material |
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Copper |
Copper |
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Fin material |
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Aluminium (Pre Coat) |
Aluminium (Blue Coat) |
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Fin Type |
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Slit Fin |
Corrugated Fin |
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Row / Stage |
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(Plate fin configuration, forced draft) |
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2 × 15 |
2 × 23 |
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FPI |
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21 |
17 |
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Size (W × H × L) |
mm |
610 × 315 × 25.4 |
585.7 × 484 × 36.4 |
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557.1 |
Refrigerant Control |
Device |
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Capillary Tube |
Refrigeration Oil |
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(cm3) |
— |
ATMOS M60 OR SUNISO 4GDID |
Refrigerant (R22) |
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g (oz) |
— |
690 (24.3) |
Thermostat |
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— |
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Protection Device |
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Overload Protector |
Capillary Tube |
Length |
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mm |
— |
Cooling; 330, Heating; 566 |
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Flow Rate |
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l/min |
— |
Cooling; 20.6, Heating; 9.5 |
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Inner Diameter |
mm |
— |
Cooling; 1.7, Heating; 1.4 |
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Air Filter |
Material |
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P.P. |
— |
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Style |
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Honeycomb |
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Capacity Control |
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Capillary |
Tube |
Compressor Capacitor |
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µF, VAC |
— |
20 µF, 370VAC |
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Fan Motor Capacitor |
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µF, VAC |
1.5 µF, 440VAC |
2.0 µF, 440VAC |
Note:
• Specifications are subjected to change without prior notice for further improvement.
7
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
3.2.CS-A9DKD CU-A9DKD
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Unit |
Indoor Unit |
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Outdoor Unit |
Power Source (Phase, Voltage, Cycle) |
ø, V, Hz |
Single, 220 - 230, 50 |
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Cooling Capacity |
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kW (BTU/h) |
2.65 -2.65 (9,040 - 9,040) |
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Heating Capacity |
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kW (BTU/h) |
2.80 - 2.85 (9,550 - 9,720) |
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Moisture Removal |
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l/h (Pint/h) |
1.6 (3.4) |
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Airflow Method |
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OUTLET |
SIDE VIEW |
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TOP VIEW |
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INTAKE |
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Air Volume |
Lo |
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m3/min (cfm) |
Cooling; 5.8 (204) - 5.8 (204) |
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— |
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Heating; 6.2 (220) - 6.2 (220) |
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Me |
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m3/min (cfm) |
Cooling; 7.1 (251) - 7.1 (251) |
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— |
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Heating; 7.1 (251) - 7.1 (251) |
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Hi |
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m3/min (cfm) |
Cooling; 8.6 (300) - 8.6 (300) |
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Cooling; 29.5 (1,040) - 30.0 |
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Heating; 9.4 (330) - 9.4 (330) |
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(1,060) |
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SHi |
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m3/min (cfm) |
Cooling; 9.4 (333) - 9.4 (333) |
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— |
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Heating; — |
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Noise Level |
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dB (A) |
Cooling; High 36 - 36, Low 26 - 26 |
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Cooling; High 48 - 49 |
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Heating; High 38 - 38, Low 28 - 28 |
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Heating; High 48 - 49 |
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Power level dB |
Cooling; High 49 - 49 |
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Cooling; High 63 - 64 |
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Heating; High 51 - 51 |
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Heating; High 64 - 65 |
Electrical Data |
Input Power |
kW |
Cooling; 0.83 - 0.86 |
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Heating; 0.70 - 0.74 |
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Running Current |
A |
Cooling; 3.9 - 3.9 |
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Heating; 3.3 - 3.3 |
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EER |
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W/W (BTU/hW) |
Cooling; 3.19 - 3.08 (10.9 - 10.5) |
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COP |
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- (BTU/hW) |
Heating; 4.00 - 3.85 (13.6 - 13.1) |
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Starting Current |
A |
18.0 |
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Piping Connection Port |
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inch |
G ; Half Union 3/8” |
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G ; 3-way valve 3/8” |
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(Flare piping) |
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inch |
L ; Half Union 1/4” |
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L ; 2-way valve 1/4” |
Pipe Size |
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inch |
G ; (gas side) 3/8” |
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G ; (gas side) 3/8” |
(Flare piping) |
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inch |
L ; (liquid side) 1/4” |
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L ; (liquid side) 1/4” |
Drain |
Inner diameter |
mm |
12 |
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— |
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Hose |
Length |
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mm |
650 |
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— |
Power Cord |
Length |
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m |
1.9 |
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— |
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Number of core-wire |
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3 (1.5 mm2) |
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— |
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Dimensions |
Height |
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inch (mm) |
11 - 1/32 (280) |
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20 - 3/32 (510) |
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Width |
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inch (mm) |
31 - 15/32 (799) |
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25 - 19/32 (650) |
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Depth |
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inch (mm) |
7 - 7/32 (183) |
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9 - 1/16 (230) |
Net Weight |
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lb (kg) |
20 (9.0) |
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60 (27) |
Compressor |
Description |
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— |
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Rotary (1 cylinder) |
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rolling piston type |
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Motor |
Type |
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— |
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Induction (2-poles) |
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Rated |
Output |
W |
— |
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750 |
8
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
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Unit |
Indoor Unit |
Outdoor Unit |
Fan Motor |
Description |
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Cross-flow Fan |
Propeller Fan |
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Material |
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AS + Glass Fiber 20% |
PP Resin |
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Type |
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Induction (4-poles) |
Induction (6-poles) |
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Input |
|
W |
60.5 - 66.0 |
66 - 74.8 |
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Rated |
Output |
W |
15 |
30 |
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Fan Speed |
Low |
rpm |
Cooling; 780 - 780 |
— |
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Heating; 840 - 840 |
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Medium |
rpm |
Cooling; 960 - 960 |
— |
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Heating; 960 - 960 |
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High |
rpm |
Cooling; 1,160 - 1,160 |
800 - 830 |
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Heating; 1,270 - 1,270 |
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SuperHigh |
rpm |
Cooling; 1,270 - 1,220 |
— |
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Heating; — |
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Heat Exchanger |
Description |
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Evaporator |
Condenser |
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Tube material |
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Copper |
Copper |
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Fin material |
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Aluminium (Pre Coat) |
Aluminium (Blue Coat) |
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Fin Type |
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Slit Fin |
Corrugated Fin |
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Row / Stage |
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(Plate fin configuration, forced draft) |
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2 × 15 |
2 × 23 |
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FPI |
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19 |
17 |
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Size (W × H × L) |
mm |
610 × 315 × 25.4 |
585.7 × 484 × 36.4 |
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557.1 |
Refrigerant Control |
Device |
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— |
Capillary Tube |
Refrigeration Oil |
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(cm3) |
— |
ATMOS M60 OR SUNISO 4GDID |
Refrigerant (R22) |
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|
g (oz) |
— |
730 (25.8) |
Thermostat |
|
|
|
— |
— |
Protection Device |
|
|
|
— |
Overload Protector |
Capillary Tube |
Length |
|
mm |
— |
Cooling; 890, Heating; 890 |
|
Flow Rate |
|
l/min |
— |
Cooling; 9.5, Heating; 9.5 |
|
Inner Diameter |
mm |
— |
Cooling; 1.5, Heating; 1.5 |
|
Air Filter |
Material |
|
|
P.P. |
— |
|
Style |
|
|
Honeycomb |
|
Capacity Control |
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|
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Capillary |
Tube |
Compressor Capacitor |
|
µF, VAC |
— |
30 µF, 370VAC |
|
Fan Motor Capacitor |
|
|
µF, VAC |
1.5 µF, 440VAC |
2.0 µF, 440VAC |
Note:
• Specifications are subjected to change without prior notice for further improvement.
9
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
3.3.CS-A12DKD CU-A12DKD
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Unit |
Indoor Unit |
Outdoor Unit |
Power Source (Phase, Voltage, Cycle) |
ø, V, Hz |
Single, 220 - 230, 50 |
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Cooling Capacity |
|
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kW (BTU/h) |
3.52 - 3.54 (12,000 - 12,100) |
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|
|
|
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Heating Capacity |
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kW (BTU/h) |
4.00 - 4.05 (13,650 - 13,810) |
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Moisture Removal |
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l/h (Pint/h) |
2.0 (4.2) |
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Airflow Method |
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|
OUTLET |
SIDE VIEW |
TOP VIEW |
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INTAKE |
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Air Volume |
Lo |
|
m3/min (cfm) |
Cooling; 6.7 (236) - 6.7 (236) |
— |
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|
|
|
Heating; 7.1 (251) - 7.1 (251) |
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|
Me |
|
m3/min (cfm) |
Cooling; 8.3 (294) - 8.3 (294) |
— |
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|
|
|
Heating; 8.3 (293) - 8.3 (293) |
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|
Hi |
|
m3/min (cfm) |
Cooling; 9.5 (340) - 9.5 (340) |
Cooling; 32.5 (1,150) - 33.5 |
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|
|
Heating; 9.7 (340) - 9.7 (340) |
(1,180) |
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|
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|
|
SHi |
|
m3/min (cfm) |
Cooling; 9.7 (343) - 9.7 (343) |
— |
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|
|
|
Heating; — |
|
Noise Level |
|
|
dB (A) |
Cooling; High 39 - 39, Low 29 - 29 |
Cooling; High 48 - 49 |
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Heating; High 40 - 40, Low 29 - 29 |
Heating; High 48 - 49 |
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|
|
Power level dB |
Cooling; High 52 - 52 |
Cooling; High 63 - 64 |
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|
|
|
Heating; High 53 - 53 |
Heating; High 64 - 65 |
Electrical Data |
Input Power |
kW |
Cooling; 1.08 - 1.15 |
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|
|
|
Heating; 1.09 - 1.12 |
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|
Running Current |
A |
Cooling; 5.1 - 5.1 |
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|
|
Heating; 5.2 - 5.1 |
|
|
EER |
|
W/W (BTU/hW) |
Cooling; 3.26 - 3.16 (11.1 - 10.8) |
|
|
COP |
|
W/W (BTU/hW) |
Heating; 3.67 - 3.62 (12.5 - 12.3) |
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|
Starting Current |
A |
27.0 |
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|
Piping Connection Port |
|
inch |
G ; Half Union 1/2” |
G ; 3-way valve 1/2” |
|
(Flare piping) |
|
|
inch |
L ; Half Union 1/4” |
L ; 2-way valve 1/4” |
Pipe Size |
|
|
inch |
G ; (gas side) 1/2” |
G ; (gas side) 1/2” |
(Flare piping) |
|
|
inch |
L ; (liquid side) 1/4” |
L ; (liquid side) 1/4” |
Drain |
Inner diameter |
mm |
12 |
— |
|
Hose |
Length |
|
mm |
650 |
— |
Power Cord |
Length |
|
m |
1.9 |
— |
|
Number of core-wire |
|
3 (1.5 mm2) |
— |
|
Dimensions |
Height |
|
inch (mm) |
11 - 1/32 (280) |
21 - 1/4 (540) |
|
Width |
|
inch (mm) |
31 - 15/32 (799) |
30 - 23/32 (780) |
|
Depth |
|
inch (mm) |
7 - 7/32 (183) |
11 - 3/8 (289) |
Net Weight |
|
|
lb (kg) |
20 (9.0) |
82 (37) |
Compressor |
Description |
|
|
— |
Rotary (1 cylinder) rolling piston |
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|
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|
type |
|
Motor |
Type |
|
— |
Induction (2-poles) |
|
Rated |
Output |
W |
— |
950 |
10
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
|
|
|
Unit |
Indoor Unit |
Outdoor Unit |
Fan Motor |
Description |
|
|
Cross-flow Fan |
Propeller Fan |
|
Material |
|
|
AS + Glass Fiber 20% |
PP Resin |
|
Motor |
Type |
|
Induction (4-poles) |
Induction (6-poles) |
|
|
Input |
W |
60.5 - 66.0 |
71.5 - 80.3 |
|
Rated |
Output |
W |
15 |
31 |
|
Fan Speed |
Low |
rpm |
Cooling; 900 - 900 |
— |
|
|
|
|
Heating; 960 - 960 |
|
|
|
Medium |
rpm |
Cooling; 1,120 - 1,120 |
— |
|
|
|
|
Heating; 1,120 - 1,120 |
|
|
|
High |
rpm |
Cooling; 1,280 - 1,280 |
845 - 860 |
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|
|
|
Heating;1,310 - 1,310 |
|
|
|
SuperHigh |
rpm |
Cooling; 1,310 - 1,310 |
— |
|
|
|
|
Heating; — |
|
Heat Exchanger |
Description |
|
|
Evaporator |
Condenser |
|
Tube material |
|
Copper |
Copper |
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|
Fin material |
|
|
Aluminium (Pre Coat) |
Aluminium (Blue Coat) |
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Fin Type |
|
|
Slit Fin |
Corrugated Fin |
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Row / Stage |
|
(Plate fin configuration, forced draft) |
||
|
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|
|
2 × 15 |
2 × 24 |
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FPI |
|
|
21 |
16 |
|
Size (W × H × L) |
mm |
610 × 315 × 25.4 |
720 × 504 × 36.38 |
|
Refrigerant Control |
Device |
|
|
— |
Capillary Tube |
Refrigeration Oil |
|
|
(cm3) |
— |
ATMOS M0 OR SUNISO 4GDID |
Refrigerant (R-22) |
|
|
g (oz) |
— |
1,080 (38.1) |
Thermostat |
|
|
|
— |
— |
Protection Device |
|
|
|
— |
— |
Capillary Tube |
Length |
|
mm |
— |
Cooling; 630, Heating; 455 |
|
Flow Rate |
|
l/min |
— |
Cooling; 6.5, Heating; 13.6 |
|
Inner Diameter |
mm |
— |
Cooling; 1.2 Heating; 1.5 |
|
Air Filter |
Material |
|
|
P.P. |
— |
|
Style |
|
|
Honeycomb |
|
Capacity Control |
|
|
|
Capillary |
Tube |
Compressor Capacitor |
|
µF, VAC |
— |
35 µF, 370VAC |
|
Fan Motor Capacitor |
|
|
µF, VAC |
1.5 µF, 440VAC |
2.0 µF, 440VAC |
Note:
• Specifications are subjected to change without prior notice for further improvement.
11
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
4 Dimensions
4.1.Indoor Unit & Remote Control
12
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
4.2.Outdoor Unit
4.2.1.CU-A7DKD / CU-A9DKD
4.2.2.CU-A12DKD
13
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
5 Refrigeration Cycle Diagram
14
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
6 Block Diagram
15
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
16
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
7 Wiring Diagram
17
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
18
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
8 Operation Details
8.1.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.
•During heating operation, the compressor will stop running and restart as shown in below figure.
8.1.1.Heating Operation Time Diagram
19
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
8.2.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.
•During cooling operation, the compressor will stop running and restart as shown in below figure.
8.2.1.Cooling Operation Time Diagram
20
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
8.3.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.
•When operation begins, Soft Dry will be switched “ON” for a maximum 10 minutes, then Soft Dry operation will be turned “OFF” for a minimum 6 minutes. After that, the Soft Dry operation will be “ON” and “OFF” based on the setting temperature as shown in below figure.
•However after 3 minutes of compressor off, during Soft Dry “OFF” (within 6 minutes Soft Dry restart control), the indoor unit will start to operate at normal Cooling mode if the intake temperature is higher than Cooling “ON” point.
8.3.1.Soft Dry Operation Time Diagram
21
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
8.4.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.
•Then, the unit start to operate at determined operation mode, until it is switched off using remote control, with the setting temperature as shown in below table.
•Operation mode will be determine again for judgement after 1 hour of operation, if the room temperature reaches to set temperature and compressor off time is over 7 minutes 30 seconds continuously.
The present operation mode will be continued, if the room temperature does not reach to set temperature (Compressor keeps running) eventhough after 1 hour from automatic operation mode started.
Present |
|
Judgement |
|
Next Mode |
|
||
Mode |
|
|
|
|
Cooling |
Soft Dry |
Heating |
|
|
|
|
|
O |
|
O |
Cooling |
23°C |
|
Cooling |
(Judgement: |
Not Applicable |
(Judgement: |
|
|
|
|
Heating |
|
23°C & Above) |
|
Below 23°C) |
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|
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|
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|
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|
|
|
O |
O |
Soft Dry |
20°C |
|
Soft Dry |
Not Applicable |
(Judgement: |
(Judgement: |
|
|
|
|
Heating |
|
|
20°C & Above) |
Below 20°C) |
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|
|
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|
|
|
O |
|
O |
Heating |
|
|
Cooling |
(Judgement: |
Not Applicable |
(Judgement: |
|
|
25°C |
|
Heating |
|
Above 25°C) |
|
25°C & below) |
|
|
|
|
|
|
|
|
Automatic Set Temperature
Refer as below.
•Automatic Set Temperature
For each operation, set temperature will automatically set as shown below.
However it can be selected 2°C higher or 2°C lower from standard set temperature by pressing the “Room Temperature Setting button”.
Operation |
Hi |
(Standard) |
Lo |
|
(+2°C) |
(±0°C) |
(-2°C) |
Cooling |
27°C |
25°C |
23°C |
Soft Dry |
24°C |
22°C |
20°C |
Heating |
23°C |
21°C |
19°C |
•The setting temperature for all the operations can be changed one level up or one level down from the standard temperature as shown in below table by pressing on the temperature up or temperature down button at remote control.
22
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
•The operation mode judging temperature and standard setting temperature can be increased by 2°C permanently, by open the circuit of JX1 at indoor electronic controller.
8.5.Operation Control
8.5.1.Restart Control (Time Delay Safety Control)
•When the thermo-off temperature (temperature which compressor stops to operate) is reached during:-
−Cooling/Heating operation - the compressor stops for 3 minutes (minimum) before resume operation.
−Soft Dry operation - the compressor stops for 6 minutes (minimum) before resume operation.
•If the operation is stopped by the remote control, the compressor will not turn on within 3 minutes from the moment operation stop, although the unit is turn on again within the period.
•This phenomenon is to balance the pressure inside the refrigerant cycle.
8.5.2.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 2.5°C (cooling mode)/5°C (heating mode) or less for continuous 2 minutes, compressor will stop and restart automatically.
•Time Delay Safety Control is activated before the compressor restart.
s T = Intake air temperature - Indoor heat exchanger temperature
•This is to prevent compressor from rotate reversely when there is an instantaneous power failure.
23
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
(For 8.5.3. to 8.5.7. information applies only to Cooling and Soft Dry Operation)
8.5.3.7 Minutes Time Save Control
•The compressor will start automatically if it has stopped for 7 minutes and the intake air temperature falls between the compressor ON temperature (A) and compressor OFF temperature (B) during the period.
•This phenomenon is to reduce the built up humidity inside a room.
8.5.4. 60 Seconds Forced Operation
• Once the air conditioner is turned on, the compressor will not stop within 60 seconds in a normal operation although the intake air temperature has reached the thermo-off temperature. However, force stop by pressing the OFF/ON operation button at the remote control is permitted.
• The reason for the compressor to force operate at minimum 60 seconds is to allow the refrigerant oil run in a full cycle and return back to the outdoor unit.
8.5.5. Starting Current Control
• When the compressor, outdoor fan motor and indoor fan motor are simultaneously started, the indoor fan motor will start to operate at 1.6 second later.
• The reason of the difference is to reduce the starting current flow.
8.5.6. Anti-Freezing 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.
•Compressor will restart again when the indoor heat exchanger temperature rises to 10°C (Recovery).
•Restart control (Time Delay Safety Control) will be applied in this Control if the recovery time is too short.
24
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
(For 8.5.8. to 8.5.14. information applies only to Heating Operation)
8.5.7.Anti-Dew Formation Control
•Purpose is to prevent dew formation on indoor unit air discharge area.
•When room temperature is constant (±1°C) the following conditions occur for 30 minutes continuously, anti-dew formation will activate:
−Remote Control setting temperature is less than 25°C.
−Compressor is on.
−Cooling operation mode.
−Indoor Fan motor operate at Low fan speed (CLo, Loor QLo).
•This control is cancelled immediately when above condition is changed, or Powerful button is pressed.
•Anti-Dew formation is control by:
1.CLo fan is changed to HLo fan.
2.QLo fan is changed to HLo fan.
8.5.8.30 Minutes Time Save Control
•The compressor will start automatically if it has stopped for 30 minutes and the intake air temperature falls between the compressor OFF temperature (A) and compressor ON temperature (B) during the period.
•This is to maintain the room temperature as set. Despite of this, it is to prevent a wrong judgement of intake air temperature due to poor installation near the sensor area.
25
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
8.5.9.Compressor Overload Protection Control
Outdoor Fan Control
•If the temperature of the indoor heat exchanger rises to 51°C, outdoor fan stops. The outdoor fan restarts when the indoor heat exchanger temperature falls to 49°C.
Compressor high pressure protection
•If the indoor heat exchanger becomes 65°C or more, the compressor will stop and restart automatically. (Time Delay Safety Control - 4 minutes waiting).
•This is to reduce the pressure, as to reduce the indoor heat exchanger temp. Nevertheless, is to protect the compressor from overload of too high temperature.
8.5.10. 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.
8.5.11. Outdoor Fan Motor Control
•When compressor stops (reaches room temperature), outdoor fan will operate for 30 seconds (forced operation).
•This is to release the heat and to obtain the lowest pressure as fast as possible.
26
CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12DKD CU-A12DKD /
8.5.12. Hot Start Control
•Hot Start Control is to prevent cool air discharge into the room when heating operation start.
•When Heating operation starts, Indoor fan will not start until the indoor heat exchanger reaches 30°C as diagram shown.
• Hot start is completed when indoor heat exchanger rises to 39°C or operation over 4 minutes.
8.5.13. Anti Cold Draft Control
•This operation is to prevent the Cold Draft during Heating mode operation.
•The operation will start when compressor OFF (Thermo OFF) during Heating operation.
•For the first 30 sec. from compressor OFF (Thermo OFF), Indoor fan speed will operate accordingly to the Indoor heat exchanger temperature as shown below:
•After 30 sec. from compressor OFF (thermo OFF), Indoor fan will run at SSLo speed only.
•Anti Cold Draft Control will stop when:
−Intake temperature < set temperature. (Time Delay Safety Control 4 minutes waiting is valid)
−30 Minutes Time Save Control activates.
27
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