3
1
Installation of outdoor unit
Step four: connect indoor and outdoor pipes
1. Remove the screw on the right han-
dle of outdoor unit and then remove
the handle.
2. Remove the screw cap of valve and
aim the pipe joint at the bellmouth of
pipe.
3. Pretightening the union nut with
hand.
4. Tighten the union nut with torque
wrench by referring to the sheet
below.
handle
screw
gas pipe
liquid pipe
liquid
valve
gas valve
union nut
pipe joint
Hex nut diameter Tightening torque
(N.m)
Φ 6
Φ 9.52
Φ 12
Φ 16
Φ 19
30~40
4
5
~55
60~65
70~75
15~20
1. Remove the wire clip or front plate; connect the power connection wire and signal
control wire
(only for cooling and heating unit) to the wiring terminal according to
the color;
N(1) 2
3
blue
brown
black
yellow-
green
Indoor unit connection
N(1) 2
3
blue
brown
black
yellow-
green
Indoor unit connection
18K:
09
、
12K:
