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Installation of the outdoor unit
(2) Piping size
Liquid pipe
AU96NXTAAA
Gas pipe
Inlet pipe
FQG-B180
Outlet pie
Liquid pipe
24000BTU/h
Indoor unit
Gas pipe
Liquid pipe
46000BTU/h
Indoor unit
Gas pipe
(3). Piping connection
The Outdoor unit is precharged with R22 refrigerant.
Refer to Fig.2, when connecting and removing piping from unit.
For the size of the flare nut, please refer to Table 1.
Bend pipe, with as large as possible radius so as not to crush pipe. When connecting pipe, hold the pipe
central an then screw nut on by hand, refer to Fig.
Apply refrigerant oil at both inside and outside of flare nut. Tighten by hand 3-4 turns then tighten as specified.
Be careful not to let foreign matters, such as sand enter the pipe.
Use torque specified in Table 1. (T oo much force may damage the flare nut, causing gas leakage).
Check piping joints for gas leakage. Insulate piping as shown in Fig. below.
Cover joint of gas piping and insulator with seal.
Apply refrigerant oil
T orque spanner
spanner
Piping joing
Fig. 2
Flare nut
9.52x0.8mm
19.05x1.0mm
19.05mm
15.88mm
9.52x0.8mm
15.88x1.0mm
9.52x0.8mm
19.05x1.0mm
Medium size seal pad 11
(Cover the piping joint with seal pad.)
Clip
(For liquid pipe)
Gas pipe
Liquid pipe
Tube fixing
panel
Base plate
Table 1
Pipe
size
3270~3990N . cm
9.52
3
(
/
")
(333~407kgf . cm)
8
6180~7540N . cm
Insulator
15.88
(630~770kgf . cm)
5
(
/
")
8
Insulator
9720~11860N . cm
19.05
(For gas pipe)
(990~1210kgf . cm)
3
(
/
")
4
15
M6
M4
Access hole cover
Tighten
A(mm)
Flare shape
torque
12.0~12.4
18.6~19.0
22.9~23.3
R0.4 ~ 0.8
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