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23
Installation and Maintenance
Service Manual
When the outdoor unit is totally surrounded by walls, the installation space of the unit should be as required in
Fig.1.
8.1.3 Piping Connection
The maximum pipe length is shown in the following table. When the distance between units (piping length) is out of the range listed below,
normal run of the unit can not be guaranteed.
Note:
①
Use water-proof insulating pipe.
②
Wall thickness of pipe: 0.5-1.0 mm;bearing pressure: 3.0MPa
③
The longer the connection pipe is, the more cooling and heating capacity will decrease.
＞
19 2/3
＞39 3/8
＞78 3/4
＞
19 2/3
＞19 2/3
＞
19 2/3
＞78 3/4
unit:inch
Fig.1
M odel
ConnectingPipe(
inch
)
Max. Pipe length(ft
)
Max. Height Differ ence betw een
I ndoor Unit andOutdoor Unit (
ft
)Liqu id Gas
Ф 1/4 3/8
3/8
3/8
1/4
1/4
Φ 229.6
Ф 1/4 3/8Φ 164
24K
18K
36K
42K
ФФ 246.1
246.1ФФ
When the outdoor unit is above maximum
height difference between indoor and
outdoor units is up to 49.2ft; When the indoor
unit is above,maximum height difference
between indoor and outdoor units is up to
49.2ft.
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