Multi Variable Air Conditioners Two-way Cassette Indoor Unit
9
Fig. 4.1.5
4.2 Refrigerant Pipe Connection
(1) Aim the flaring port of copper pipe at the center of screwed joint and then
tighten the flaring nut with hand as shown in fig. 4.2.1.
(2) Tighten the flaring nut with torque wrench.
Fig.4.2.1
(3) Use pipe bend when bending the pipe and the bending angle should not be too
small.
(4) Wrap the connection pipe and joint with sponge and then tie them firmly with
tape.
Pipe diameter
mm(in.)
Torque
（
N•m
）
6.35(1/4)
15
～
30
9.52(3/8)
35
～
40
12.7(1/2)
45
～
50
15.9(5/8)
60
～
65
