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(4) When installing indoor unit, make sure that the hanging parts at top are strong enough to
stand the weight of unit.
>1000mm
3.3 Connection Pipe Requirement
The maximum length of the connection pipe is listed in the table below. Do not place the units between
which the distance exceeds the maximum length of the connection pipe.
Connecting Pipe (inch)
Model
Liquid
21UT024C24
3/8
21UT036C24
3/8
21UT048C24
3/8
21UT060C24
1/2
The connecting pipe should be thermally insulated properly.
◆
The pipe wall thickness shall be 0.5-1.0 mm and the pipe wall shall be able to withstand
◆
the pressure of 6.0 MPa. The longer the connecting pipe, the lower the cooling and heating
effect performs.
3.4 Electrical Requirement
Electric Wire Size and Fuse Capacity.
Power Supply
Indoor Units
V/Ph/Hz
21UT024C24
220/230/1/60
21UT036C24
220/230/1/60
220/230/1/60
21UT048C24
220/230/1/60
21UT060C24
Floor
>1000mm
Fig.3
CAUTION!
Table 2
Maximum
length
Gas
(m)
5/8
15
3/4
30
7/8
30
7/8
30
Table 3
Fuse Capacity
A
1.46
1.46
3.60
3.60
5
Floor Ceiling Air-Conditioning Unit
>800mm
Floor
Maximum
Drainage pipe(Outer Diameter ×
height
wall thickness) (mm)
(m)
15
15
15
15
Breaker Capacity
Min. Power Supply Cord
A
15
15
15
15
17×1.75
17×1.75
17×1.75
17×1.75
2
mm
1.3
1.3
1.3
1.3
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