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English
INSTALLATION OF OUTDOOR UNIT
REFRIGERANT PIPING WORK
Refrigerant piping is important in particular. Refrigeration cycle of the split air conditioner is realized
by the perfect piping work.
Piping length and elevation
If the piping is too long, both the capacity and reliability of unit will drop. As the number of bends increase, resistance to
flow of refrigerant system increases, thus lowering cooling capacity and as a result the compressor may become defective.
Always choose the shortest path and follow the recommendation as tabulated below.
MODEL
INDOOR
CK20A/AR
CK25A/AR
CK30A/AR
CK40A/AR
CK50A/AR
OUTDOOR
SL20B/BRK
SL25B/BRK
SL30C/CR
SL40C/CR
SL50C/CR
MAX. LENGTH (M)
15 m
15 m
20 m
20 m
20 m
MAX. ELEVATION (M)
8 m
8 m
10 m
10 m
10 m
MAX. NO. OF BENDS
10
10
10
10
10
LIQUID PIPE SIZE
1/4”
3/8”
3/8”
3/8”
3/8”
GAS PIPE SIZE
5/8”
5/8”
5/8”
3/4”
3/4”
SL SERIES
A
B
C
D
MIN. DISTANCE (mm)
300
1000
300
500
MSS SERIES
A
B
C
MIN. DISTANCE (mm)
500
1000
500
Preliminary site survey
•
A place protected from rain, direct sunlight and well-ventilated wherever practicable.
•
A place capable of bearing the weight of the outdoor unit and isolating noise and vibration.
•
A place where there are no obstruction of air flow into or out the unit.
•
Do not put any object which may become obstacle for the air flow into or out the outdoor unit.
•
The location must not be susceptible to high concentration dust, oil, salt or sulfide gas.
Outdoor unit installation
•
Install the outdoor unit firmly and horizontally. Maintain a space clearance from the obstruction as shown in below for
servicing and air ventilation.
A
B
C
D
A
B
C
C
CK20A(1-16)ENG
2/1/01, 10:15 AM
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