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7. Installation details
7.1 Wrench torque sheet for installation
mm
Ф6.35
Ф9.52
Ф12.7
7.2 Connecting the cables
The power cord of connect should be selected according to the following specifications sheet.
7.3 Pipe length and the elevation
Capacity
Btu/h
Gas
7K9K12K
3/8'' (Ф9.52)
18K
1/2'' (Ф12.7)
Caution:
Capacity is based on standard length and maximum allowance length is base of reliability.
Oil trap should be installed per 5-7 meters.
7.4 Air purging of the piping and indoor unit
Required tools:
Hexagonal wrench; adjustable wrench; torque wrenches, wrench to hold the joints and gas leak detector.
Note:
The air in the indoor unit and in the piping must be purged. If air remains in the refrigeration piping, it will affect
Outside diameter
Unit
2
mm
Pipe size
Liquid
1/4'' (Ф6.35)
1/4'' (Ф6.35)
inch
1/4
3/8
1/2
Grade
7K9K12K18K
1.5
Standard
Max.
length
Elevation
(m)
B (m)
5
8
5
8
Torque
Kgf.m
1.8
4.2
5.5
Max.
Additional
Length
refrigerant
A (m)
(g/m)
20
20
20
20
11
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