6. SYSTEM DESIGN
ADAPTER INSTALLATION
Attach the adapters (accessories) to the ports on the gas pipe side of the indoor unit according to
the size of the pipe to be connected.
Apply the refrigeration compressor oil (or equivalent) used for the outdoor unit to the
attaching portion of the adapters.
Tighten the adapter using a torque wrench
according to the tightening torque values in the
table below.
PIPING INSULATION
(1) Install the coupler heat insulation (large and small) and insulation (long and short) on each pipe as
shown in the gures beow.
(2) Attach the butting surface with no gap to eliminate any gap between the insulations.
(3) During the pipe insulation work, prevent air from getting inside the insulation with an adhesive tape
ed supp.
Indoor unit side
Coupler heat insulation (large)
dhesie tape ed supp
dhesie tape ed supp
dhesie tape ed supp
Insulation (long)
Coupler heat insulation (small)
Butting surfaces
Outdoor unit side
Coupler heat insulation (small)
Coupler heat insulation (large)
Butting surfaces
[First piece]
Insulation (short)
Insulation (short)
[Second piece]
Insulation (short)
Adhesive tape
ed supp
Insulation (short) x 2
(cover with 2 pieces of
insulation)
NON-CONNECTING PIPES
(1) Install the coupler heat insulation (large and small)
and insulation (long) as shown in the figure on the right.
pp an adhesie tape ed supp to preent air
from getting inside the insulation.
Adapter
[mm (in.)]
Tightening torque
[N·m]
. .
49 to 61
. .
Insulation (long)
dhesie tape ed supp
dhesie tape ed supp
- (06 - 37) -
SYSTEM
DESIGN
SYSTEM
DESIGN
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