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Connecting the pipes
CAUTION
• Seal the pipe route hole with putty (locally purchased) such that there are no gaps. Small in-
sects or animals that are trapped in the outdoor unit may cause a short circuit in the electrical
component box.
• After completing all the pipe connection by brazing, perform the indoor unit pipe connection with
a flare joint.
• When removing the pinch pipe or brazing the joint pipe, carry out the work while cooling down
the 3-way valve sufficiently.
• Braze the joint pipe onto the 3-way valves at the liquid and gas side. Install the joint pipe appropri-
ately so that it can be connected easily with the main pipe.
• Braze the joint pipe at the liquid and gas side with the main pipe.
• Be sure to supply nitrogen when brazing.
Connection example (For Gas pipe φ 22.22)
noitcennoc mottoBnoitcennoc tnorF
Liquid pipe
Gas pipe
Joint pipe A
(accessory)
Liquid pipe
(locally purchased)
Gas pipe
(locally purchased)
Joint pipe B
(accessory)
(locally purchased)
(locally purchased)
- 200 -
3-3. Pipe connection 3. Pipe installation
SYSTEM
DESIGN
SYSTEM
DESIGN
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