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16
(Example 2)
≤ 2 m [6.6 ft]
Toward indoor unit
- When connecting the pipes between the outdoor units, the
accumulation of oil in the slave outdoor unit should be avoided.
Otherwise, the unit may not operate properly.
(Example 1)
Toward indoor unit
(Example 2)
Toward indoor unit
(Example 3)
Toward indoor unit
Oil Trap
≥ 2 m [6.6 ft]
Toward indoor unit
h
Oil Trap
h
Toward indoor unit
Branch pipe Fitting
Y branch
A
CAUTION
!
Y-branches between the outside units must be installed
horizontally.
Horizontal
plane
A
• 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.
Insulator
(included with kit)
Header
B
h
C
• When the number of indoor units to be connected to the branch
pipes is less than the number of branch pipes available for
connection then cap pipes should be fitted to the surplus branches.
B
• Fit branch pipe lie in a horizontal plane.
Horizontal plane
View from point B in the direction of the arrow
Ⓐ To Outdoor Unit
B
Ⓑ To Branch Piping or Indoor Unit
Facing
downwards
Within +/- 10°
Viewed from point A
in direction of arrow
Tape
(field supply)
Liquid and gas
Insulator for
pipe joints
field piping
Ⓐ To Outdoor Unit
A
Ⓑ To Indoor Unit
• 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
• When the number of pipes to be
connected is smaller than the
number of header branches,
install a cap to the unconnected
branches.
Pinched pipe
Facing
upwards
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