Fujitsu AUYG18LVLB Design & Technical Manual page 208

¢ 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)
Liquid pipe
(locally purchased)
3-3. Pipe connection
F o r t n c o n n e t c o i n
Joint pipe A
(accessory)
Gas pipe
(locally purchased)
- 200 -
B t o o t m c o n n e t c o i
Joint pipe B
(accessory)
Gas pipe
(locally purchased)
Liquid pipe
(locally purchased)
n
3. Pipe installation