Hitachi RAS-8.0HNBRMQ1 - Page 27

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(2) Precaution for branch pipe connection
Use the branch pipe to connect the outdoor/indoor units. Mounted the branch pipes to a pillar, a wall, or
a ceiling.
Keep the inlet pipe of the branch pipe straight, and the length of the straight pipe is no less than 0.5 meter.
Keep Horizontal
To
Indoor Unit
To Indoor Unit
Branch
Connection
To Outdoor
Unit
Keep
Vertical
Secure the Branch Pipe
to the surface of Pillar or Wall.
Keep
Keep
Horizontal
Horizontal
Secure the Branch Pipe
to Ceiling surface or Beam
Upper side
Upper side
Upper side
Upper side
Branch
Pipe
Branch
Pipe
Branch
connection
Bending
Main Pipe
Radius
Main
Pipe
Branch
Pipe
Branch
Connection
Straight
Length
Main
Pipe
Min. 0.5m
Branch
Connection
Branch Pipe
Branch
Pipe
Main
Branch
Pipe
Connection
Branch
Pipe
Branch
Pipe
CORRECT INCORRECT CORRECTCORRECT
Min.
0.5m