16
ENGLISH
- Ensure that the branch pipes are attached vertically.
Slave
Master
Header
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
1st
1st
1st
Main pipe
Distribution
2nd
2nd
3rd
3rd
Main pipe
Distribution
Slave
Master
1st
3rd
3rd main pipe distribution
2nd
Horizontal Distribution
Vertical Distribution
The others
Distribution Method
• When the number of indoor units to be connected to the branch
pipes is less than the number of branch pipes available for connec-
tion then cap pipes should be fitted to the surplus branches.
• Fit branch pipe lie in a horizontal plane.
Pinched pipe
B
Horizontal plane
View from point B in the direction of the arrow
Y branch
Header
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)
A
B
C
Ⓐ
To Branch Piping or Indoor Unit
Ⓑ
To Outdoor Unit
• 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 sec-
tion should be cut with a pipe cutter.
• Branch pipe should be insulated with the insulator in each kit.
Ⓐ
To Outdoor Unit
Ⓑ
To Indoor Unit
• The indoor unit having larger ca-
pacity must be installed closer
to
Ⓐ
than smaller one.
• If the diameter of the refrigerant
piping selected by the proce-
dures described is different
from the size of the joint, the
connecting section should be
cut with a pipe cutter.
ⓒ
Pipe cutter
• When the number of pipes to be
connected is smaller than the
number of header branches, in-
stall a cap to the unconnected
branches.
Branch pipe Fitting
