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(As for outdoor piping, please refer to installation Manual of outdoor unit.)
Outdoor is precharged with refrigerant.
Be sure to see the Fig.1, when connecting and removing piping from unit.
For the size of the flare nut, please refer to Table 1.
Apply refrigerant oil at both inside and outside of flare nut. Tighten it band tight 3-4 turns then tighten it.
Use torque specified in Table 1. (Too much force may damage 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.
Refrigerant piping
5
Insert
Washer fixing pad
(prepared in feild)
[ secure the washer firmly]
Table 1
Level
Polythene pipe
Screws at the piping outlet is fixed at the corner
of drain pan.
Center of ceiling hole Paper pattern
5
Paper pattern
Screw (accessory)
Screw (accessory)
[Fix the paper pattern]
6
6
7
Apple refrigerant oil
Torque spanner
spanner
Piping joing
Flare nut
Pipe size Tighten torque A(mm) Flare shape
9.52mm
3270~3990N
.
cm (333~407kgf
.
cm)
6180~7540N
.
cm (630~770kgf
.
cm)
15.88mm
19.05mm
9720~11860N
.
cm (990~1210kgf
.
cm)
12.0~12.4
18.6~19.0
22.9~23.3
6.35mm
1420~1720N
.
cm (144~176kgf
.
cm)
8.3~8.7
R0.4 ~ 0.8
A
90
0.5
45
2
Clamp
Gas pipe
Liquid pipe
Insulator (accessory)
(For liquid pipe)
Insulator (accessory)
(For gas pipe)
(Cover the piping joint with seal pad.)
7
Medium size seal pad 11 (accessory)
8
12.7mm
4950~6030N
.
cm (502~617kgf
.
cm)
12.0~20.0
Installation Procedure