Hitachi RAM-112FPSQB, Руководство по установке

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9
(2) Precautions for installing refrigerant pipes (example)
Make sure the pipe is free of water and dust inside. Cut the pipe with a copper pipe cutter. Remove dust and impurities inside
the pipe with nitrogen or compression air before installation. (Do not use a saw or whetstone that may cause powder.)
□
1) Prepare suitable refrigerant pipes onsite.
□
2) Connect the indoor unit only with the optional branch pipe kit. Do not use connectors.
Maintain level with the column, wall, and ceiling when fixing branch pipes.
Note:
Fix pipes with clamps outside
the insulation layer or add
cushions between clamps and
pipes.
● Fixing branch pipes
＜
Precautions for releasing pressure from the pipe union
＞
Release pressure from the pipe union (
Ⓑ
in the right diagram) on the fluid
interceptor valve on the pipe union (
Ⓐ
in the right diagram) of the gas
interceptor valve. Follow the instructions below.
Operation Air Conditioner
Pipe union
Ⓐ
on the gas
interceptor valve.
Low pressure
Pipe union
Ⓑ
on the liquid
interceptor valve.
Filling refrigerant after evacuation or repair.
Note: After removing the filling hose, prevent refrigerant and refrigeration oil
from contaminating the electrical panel.
Penetrating walls
Protect pipe ends when penetrating walls.
Protect pipe ends with a cover or plastic bag.
Do not put pipes
on the floor
unprotected.
Protect pipe ends with a cover or plastic bag.
Protect pipe
ends with a
cover or
plastic bag.
Rubber
band
Rainwater
enters.
Maintain level
To indoor
unit
To outdoor
unit
Branch pipe
To outdoor unit
Vertical
Fix on columns or
walls
Fix on the ceiling and beams
Top
Top
Top Top
Branch pipe
分歧配管
分歧配管 分歧配管
分歧配管
分歧配管
主配管 分歧管
分歧管
主配管
Bottom
Branch pipe
主配管 分歧管
Bottom Bottom
Bottom
Main pipe
Bend
radius
At least
0.5m
At least
0.5m
At least
0.5m
Main pipe Branch
pipe
Branch
pipe
Main pipe
Branch pipe
Branch
pipe
Branch
pipe
Branch pipe
Branch pipe
Branch pipe
Main pipe
Horizontal
Hor
izontal