Refrigerant piping system
Branch pipe Fitting
Y branch
A
B
To Outside 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
/- 10
°
A
Insulator
(included with kit)
Liquid and gas
pipe joints
Insulator for
field piping
Tape
(field supply)
Header
To outside unit
To indoor unit
A
B
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,
install 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
40
Outside Unit
Summary of Contents for ARWN Series
Page 75: ......
