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46 Outdoor Unit
Pipe connections between indoor and outdoor unit
Branch pipe Fitting
Y branch
A
B
To Outdoor Unit
To Branch Piping or Indoor Unit
A
B
Facing
upwards
Facing
downwards
Within 3 Within 3
Viewed from point A
in direction of arrow
Horizontal
plane
Within +/- 10
A
Insulator
(included with kit)
Liquid and gas
pipe joints
Insulator for
field piping
Tap e
(field supply)
A
B
Header
To outdoor unit
To indoor unit
A
B
C
• Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.)
• There is no limitation on the joint mounting configuration.
• If the diameter of the refrigerant piping selected by the procedures described is different from the size of
the joint, the connecting section should be cut with a pipe cutter.
• Branch pipe should be insulated with the insulator in each kit.
• When the number of pipes to be connected is
smaller than the number of header branches, in-
stall a cap to the unconnected branches.
• The indoor unit having larger capacity must be
installed closer to Ⓐ than smaller one.
• If the diameter of the refrigerant piping selected
by the procedures described is different from
the size of the joint,
the connecting section
should be cut with a pipe cutter.
ⓒ Pipe cutter
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