Panasonic CS-S18HKH User manual

© 2007 Panasonic HA Air-Conditioning (M) Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
Order No. MAC0710043C3
Air Conditioner
Indoor Unit Outdoor Unit
CS-S18HKH CU-S18HKH
CS-S24HKH CU-S24HKH
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions----------------------------------------------- 3
2 Specifications ----------------------------------------------------- 5
2.1. CS-S18HKH CU-S18HKH------------------------------ 5
2.2. CS-S24HKH CU-S24HKH------------------------------ 7
3Features------------------------------------------------------------- 9
4 Location of Controls and Components------------------ 10
4.1. Indoor Unit ------------------------------------------------- 10
4.2. Outdoor Unit----------------------------------------------- 10
4.3. Remote Control------------------------------------------- 10
5Dimensions------------------------------------------------------- 11

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5.1. Indoor Unit ------------------------------------------------- 11
5.2. Outdoor Unit ----------------------------------------------- 12
6 Refrigeration Cycle Diagram -------------------------------- 13
7 Block Diagram --------------------------------------------------- 14
7.1. CS-S18HKH CU-S18HKH ---------------------------- 14
7.2. CS-S24HKH CU-S24HKH ---------------------------- 15
8 Wiring Connection Diagram -------------------------------- 16
8.1. Indoor Unit ------------------------------------------------- 16
8.2. Outdoor Unit ----------------------------------------------- 17
9 Electronic Circuit Diagram----------------------------------- 19
9.1. Indoor Unit ------------------------------------------------- 19
9.2. Outdoor Unit ----------------------------------------------- 20
10 Printed Circuit Board ------------------------------------------ 22
10.1. Indoor Unit ------------------------------------------------- 22
10.2. Outdoor Unit ----------------------------------------------- 25
11 Installation Instruction ---------------------------------------- 27
11.1. Select The Best Location ------------------------------ 27
11.2. Indoor/Outdoor Unit Installation Diagram ---------- 27
11.3. Indoor Unit ------------------------------------------------- 28
11.4. Outdoor Unit ----------------------------------------------- 31
12 Operation Control----------------------------------------------- 33
12.1. Basic Function -------------------------------------------- 33
12.2. Indoor Fan Motor Operation --------------------------- 34
12.3. Outdoor Fan Motor Operation------------------------- 34
12.4. Airflow Direction ------------------------------------------ 35
12.5. Quiet operation (Cooling Mode/Cooling area
of Dry Mode)----------------------------------------------- 36
12.6. Powerful Mode Operation------------------------------ 36
12.7. Timer Control---------------------------------------------- 36
12.8. Auto Restart Control------------------------------------- 37
12.9. Indication Panel------------------------------------------- 37
12.10. Patrol Operation ------------------------------------------ 37
12.11. e-ion Operation ------------------------------------------- 40
13 Protection Control ---------------------------------------------- 43
13.1. Restart Control (Time Delay Safety Control) ------ 43
13.2. 30 Seconds Forced Operation------------------------ 43
13.3. Total Running Current Control ------------------------ 43
13.4. IPM (Power transistor) Prevention Control -------- 43
13.5. Compressor Overheating Prevention Control----- 44
13.6. Low Pressure Prevention Control (Gas
Leakage Detection)-------------------------------------- 44
13.7. Compressor Tank Temperature Rise
Protection Control---------------------------------------- 44
13.8. Low Frequency Protection Control 1 ---------------- 44
13.9. Low Frequency Protection Control 2 ---------------- 44
13.10. Outdoor Air Temperature Control -------------------- 45
13.11. Cooling Overload Control ------------------------------ 45
13.12. Dew Prevention Control -------------------------------- 45
13.13. Freeze Prevention Control----------------------------- 46
14 Servicing Mode -------------------------------------------------- 47
14.1. Auto OFF/ON Button ------------------------------------ 47
14.2. Select Remote Control Transmission Code ------- 47
14.3. Remote Control Button --------------------------------- 48
15 Troubleshooting Guide---------------------------------------- 49
15.1. Refrigeration Cycle System --------------------------- 49
15.2. Breakdown Self Diagnosis Function ---------------- 51
15.3. Error Codes Table---------------------------------------- 52
16 Disassembly and Assembly Instructions --------------- 53
16.1. Indoor Electronic Controllers, Cross Flow Fan
and Indoor Fan Motor Removal Procedures ------ 53
16.2. Outdoor Electronic Controller Removal
Procedure-------------------------------------------------- 57
17 Technical Data --------------------------------------------------- 58
17.1. Operation Characteristics ----------------------------- 58
18 Exploded View and Replacement Parts List----------- 62
18.1. CS-S18HKH CS-S24HKH ---------------------------- 62
18.2. CU-S18HKH ---------------------------------------------- 64
18.3. CU-S24HKH ---------------------------------------------- 66

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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.
• The caution items stated here must be followed because these important contents are related to safety. The meaning of each
indication used is as below. Incorrect installation or servicing due to ignoring of the instruction will cause harm or damage, and
the seriousness is classified by the following indications.
• The items to be followed are classified by the symbols:
• Carry out test running to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, care and
maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to properties.
This symbol denotes item that is PROHIBITTED from doing.
1. Engage dealer or specialist for installation and servicing. If installation or servicing done by the user is defective, it will cause water leakage,
electrical shock or fire.
2. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electric shock or fire.
3. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage, fire
or electrical shock.
4. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly done,
the set will drop and cause injury.
5. For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit and single outlet
must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.
6. This equipment is strongly recommended to install with Earth Leakage Circuit Breaker (ELCB) or Residual Current Device (RCD).
Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulation breakdown.
7. Use the specified cable and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable so that no external force will be
acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.
8. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause
heat-up or fire at the connection point of terminal, fire or electrical shock.
9. When carrying out piping connection, take care not to let air substances other than the specified refrigerant go into refrigeration cycle.
Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosive and injury.
10. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise building, child may climb up to
outdoor unit and cross over the handrail and causing accident.
11. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and
telephone. Otherwise, it may cause electric shock in case equipment breakdown or insulation breakdown.
12. When connecting the piping, do not allow air or any substances other than the specified refrigerant to enter the refrigeration cycle.
Otherwise, this may lower the capacity, cause abnormally high pressure in the refrigeration cycle, and possibly result in explosion and
injury.
13. Do not damage or use unspecified power supply cord. Otherwise it will cause fire or electric shock.
14. Do not modify the length of the power supply cord or use extension cord, and do not share the single outlet with other electric
appliances. Otherwise, it will cause fire or electric shock.
15. It is desirable that the amount of residual oil is less than 40 mg/10m.
Thickness of copper pipes used with R410A must be more than 0.6 mm. Never use copper pipes thinner than 0.6 mm.
16. During installation, before run the compressor, confirm the refrigerant pipes are fixed. Operation of compressor without fixing the piping,
setting the valves at open condition, a burst may occur and cause injury.
17. 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.
18. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when refrigerant contacts with fire.

4
1. 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.
2. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the
furniture.
3. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare may
break and cause refrigerant gas leakage.
4. Do not touch outdoor unit air inlet and aluminium fin. It may cause injury.
5. Select an installation location which is easy for maintenance.
6. Pb free solder has a higher melting point than standard solder; typically the melting point is 50qF – 70qF (30qC – 40qC) higher. Please use
a high temperature solder iron. In case of the soldering iron with temperature control, please set it to 700 ± 20qF (370 ± 10qC).
Pb free solder will tend to splash when heated too high (about 1100qF / 600qC).
7. Power supply connection to the air conditioner. Connect the power supply cord of the air conditioner to the mains using one of the following
methods.
Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency. In some countries,
permanent connection of this room air conditioner to the power supply is prohibited.
i. Power supply connection to the receptacle using a power plug. Use an approved power plug with earth pin for the connection to the
socket.
ii. Power supply connection to a circuit breaker for the permanent connection. Use an approved circuit breaker for the permanent
connection. It must be a double pole switch with a minimum 3.5 mm contact gap.
8. Do not release refrigerant during piping work for installation, servicing, reinstallation and during repairing a refrigerant parts.
Take care of the liquid refrigerant, it may cause frostbite.
9. Installation work: It may need two people to carry out the installation work.
10. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.

5
2 Specifications
2.1. CS-S18HKH CU-S18HKH
1. Cooling capacities are based on indoor temperature of 27qC Dry Bulb (80.6qF Dry Bulb), 19.0qC Wet Bulb (66.2qF Wet Bulb)
and outdoor air temperature of 35qC Dry Bulb (95qF Dry Bulb), 24qC Wet Bulb (75.2qF Wet Bulb)
ITEM UNIT INDOOR UNIT OUTDOOR UNIT
Performance Test Condition JIS
Capacity
W 5.30 (0.90 ~ 6.00)
BTU/h 18100 (3070 ~ 20500)
kJ/h 19080 (3240 ~ 21600)
EER W/W 3.68 (3.75 ~ 3.53)
BTU/hW 12.57 (12.79 ~ 12.06)
Noise Level dB (A) High: 44, Low: 32, Q-Lo: 29 High: 49
Power level dB — —
Moisture Removal l/h 2.9
pt/h 6.1
Air Volume
Lo m3/min (ft3/min) 11.3 (398) —
Me m3/min (ft3/min) 14.0 (494) —
Hi m3/min (ft3/min) 16.7 (590) 31.2 (1100)
SHi m3/min (ft3/min) 19.4 (686) —
Refrigeration Control Device — Expansion Valve
Refrigeration Oil cm3— RB68A or Freol Alpha68M (400)
Refrigerant (R410A) g (oz) — 960 (33.9)
Dimension
Height mm (inch) 275 (10-27/32) 540 (21-9/32)
Width mm (inch) 998 (39-5/16) 780 (30-23/32)
Depth mm (inch) 230 (9-1/16) 289 (11-13/32)
Net Weight kg (lbs) 11 (24) 33 (73)
Pipe Diameter Gas mm (inch) 12.7 (1/2)
Liquid mm (inch) 6.35 (1/4)
Standard Length m (ft) 5.0 (16.4)
Pipe Length Range m (ft) 3 (9.8) ~ 20 (65.6)
Height Difference m (ft) 15 (49.2)
Additional Gas Amount g/m (oz/ft) 15 (0.2)
Refrigeration Charge Less m (ft) 10 (32.8)
Drain Hose Inner Diameter mm 16 —
Length mm 650 —
Compressor
Type — Hermetic Motor
Motor Type — Brushless (4-pole)
Rated Output W — 900
Fan
Type Cross-Flow Fan Propeller Fan
Material ASHT-18 PP
Motor Type Transistor (8-pole) Transistor (8-pole)
Output Power W 30 40
Fan Speed
Lo (Cool) rpm 910 - 910 —
Me (Cool) rpm 1130 - 1130 —
Hi (Cool) rpm 1350 - 1350 840 / 840
SHi (Cool) rpm 1570 - 1570 —
Heat Exchanger
Fin Material Aluminium (Pre Coat) Aluminium (Blue Coated)
Fin Type Slit Fin Slit Fin
Row x Stage x FPI 2 x 15 x 17 2 x 24 x 17
Size (W x H x L) mm 810 x 315 x 25.4 25.4 x 504 x 702 : 722
Air Filter Material Polypropelene —
Type One-Touch —

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Note
• Specifications are subject to change without notice for further improvement.
Item Unit
Power Source (Phase, Voltage, Cycle)
ø Single
V 220 - 240
Hz 50
Input Power W 1.44k (240 ~ 1.70k)
Starting Current A 6.7
Running Current A 6.7 - 6.4
Maximum current A 9.0
Power Factor % 98 - 94
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord Number of core 3 (1.5)
Length m 2 (6)
Thermostat Electronic Control
Protection Device Electronic Control

7
2.2. CS-S24HKH CU-S24HKH
1. Cooling capacities are based on indoor temperature of 27qC Dry Bulb (80.6qF Dry Bulb), 19.0qC Wet Bulb (66.2qF Wet Bulb)
and outdoor air temperature of 35qC Dry Bulb (95qF Dry Bulb), 24qC Wet Bulb (75.2qF Wet Bulb)
ITEM UNIT INDOOR UNIT OUTDOOR UNIT
Performance Test Condition JIS
Capacity
W 6.25 (0.90 ~ 7.10)
BTU/h 21300 (3070 ~ 24200)
kJ/h 22500 (3240 ~ 25560)
EER W/W 3.32 (2.90 ~ 3.23)
BTU/hW 11.34 (9.90 ~ 11.00)
Noise Level dB (A) High: 45, Low: 36, Q-Lo: 33 High: 49 - 50
Power level dB — —
Moisture Removal l/h 3.5
pt/h 7.4
Air Volume
Lo m3/min (ft3/min) 12.8 (455) - 12.8 (455) —
Me m3/min (ft3/min) 15.0 (533) - 15.0 (533) —
Hi m3/min (ft3/min) 17.2 (610) - 17.2 (610) 42.4 (1500) - 45.0 (1590)
SHi m3/min (ft3/min) 19.9 (707) - 19.9 (707) —
Refrigeration Control Device — Capillary Tube
Refrigeration Oil cm3— RB68A or Freol Alpha68M (400)
Refrigerant (R410A) g (oz) — 890 (31.4)
Dimension
Height mm (inch) 275 (10-27/32) 750 (29-17/32)
Width mm (inch) 998 (39-5/16) 875 (34-15/32)
Depth mm (inch) 230 (9-1/16) 345 (13-19/32)
Net Weight kg (lbs) 11 (24) 46 (101)
Pipe Diameter Gas mm (inch) 15.9 (5/8)
Liquid mm (inch) 6.35 (1/4)
Standard Length m (ft) 5.0 (16.4)
Pipe Length Range m (ft) 3 (9.8) ~ 20 (65.6)
Height Difference m (ft) 15 (49.2)
Additional Gas Amount g/m (oz/ft) 20 (0.2)
Refrigeration Charge Less m (ft) 10 (32.8)
Drain Hose Inner Diameter mm 16 —
Length mm 650 —
Compressor
Type — Hermetic Motor
Motor Type — Brushless (4-pole)
Rated Output W — 900
Fan
Type Cross-Flow Fan Propeller Fan
Material ASHT-18 PP
Motor Type Transistor (8-pole) Transistor (8-pole)
Output Power W 30 80
Fan Speed
Lo (Cool) rpm 1030 - 1030 —
Me (Cool) rpm 1205 - 1205 —
Hi (Cool) rpm 1380 - 1380 730 - 770
SHi (Cool) rpm 1600 - 1600 —
Heat Exchanger
Fin Material Aluminium (Pre Coat) Aluminium (Blue Coated)
Fin Type Slit Fin Slit Fin
Row x Stage x FPI 2 x 15 x 17 1 x 34 x 17
Size (W x H x L) mm 810 x 315 x 25.4 12.7 x 714 x 870.2
Air Filter Material Polypropelene —
Type One-Touch —

8
Note
• Specifications are subject to change without notice for further improvement.
Item Unit
Power Source (Phase, Voltage, Cycle)
ø Single
V 220 - 240
Hz 50
Input Power W 1.88k (310 ~ 2.20k)
Starting Current A 8.8
Running Current A 8.8 - 8.4
Maximum current A 11.5
Power Factor % 97 - 93
Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Power Cord Number of core 3 (2.5)
Length m 2 (6)
Thermostat Electronic Control
Protection Device Electronic Control

9
3 Features
• Inverter Technology
- Wider output power range
- Energy saving
- Quick Cooling
- More precise temperature control
• 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
• Environment Protection
- Non-ozone depletion substances refrigerant (R410A)
•Long Installation Piping
-CS/CU-S18/24HK, long piping up to 20 meter
•Easy to use remote control
•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 reduce the indoor unit operating sound
- Powerful mode to reach the desired room temperature quickly
- 24-hour timer setting
• Serviceability Improvement
-Breakdown Self Diagnosis function

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4 Location of Controls and Components
4.1. Indoor Unit
4.2. Outdoor Unit
4.3. Remote Control

11
5 Dimensions
5.1. Indoor Unit

12
5.2. Outdoor Unit
5.2.1. CU-S18HKH
5.2.2. CU-S24HKH

13
6 Refrigeration Cycle Diagram
If piping length is over rated length, additional refrigerant should be added as shown in the table.
Model Piping size RatedLength
(m)
Max.
Elevation (m)
Min. Piping
Length (m)
Max. Piping
Length (m)
Additional
Refrigerant (g/m)
Gas Liquid
S18HKH 1/2” 1/4” 5 15 320 15
S24HKH 5/8” 1/4” 5 15 320 20

14
7 Block Diagram
7.1. CS-S18HKH CU-S18HKH

15
7.2. CS-S24HKH CU-S24HKH

16
8 Wiring Connection Diagram
8.1. Indoor Unit
8.1.1. CS-S18HKH CS-S24HKH

17
8.2. Outdoor Unit
8.2.1. CU-S18HKH

18
8.2.2. CU-S24HKH

19
9 Electronic Circuit Diagram
9.1. Indoor Unit
9.1.1. CS-S18HKH CS-S24HKH

20
9.2. Outdoor Unit
9.2.1. CU-S18HKH