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Refrigerant Piping
Branch Pipe Fitting
■ Y branch
A
• Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.)
A
■ Header
30
Outdoor Unit
B
HorizontalZ
plane
Viewed from point AZ
in direction of arrow
A
B
C
Ⓐ To indoor unit
Ⓑ To outdoor unit
ⓒ Pipe cutter
A
To Outdoor Unit
B
To Branch Piping or Indoor Unit
Within +/- 10°Z
Z
• 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.
• When the number of pipes to be connected is
smaller than the number of header branches,
install a cap to the unconnected branches.
FacingZ
FacingZ
downwards
upwards
Within ± 3°Z
Within ± 3°Z
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