Lennox LM012CI-120V432-X Owner's Manual page 34

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.
liquid
valve
1. Remove the wire clip; connect the power connection wire and signal control
wire (only for cooling and heating unit) to the wiring terminal according to the
Note: the wiring board is for reference only, please refer to the actual one.
screw
handle
liquid pipe
gas pipe
gas valve
12、18K Cool only type:
N(1) 2
blue black yellow-
Indoor unit connection
Cool only type:
24K
N(1) 2
handle
blue black brown
Indoor unit connection
3. Pretightening the union nut with
hand.
4. Tighten the union nut with torque
wrench by referring to the sheet
below.
Hex nut diameter Tightening torque
Φ 9.52
12K Heat pump type:
yellow- blue
green
green
Indoor unit connection
24K Heat pump type:
3
N(1)
yellow-
blue black
green
yellow-
green
Indoor unit connection
3
pipe joint
union nut
Φ 6
Φ 12
Φ 16
Φ 19
N(1) 2 4 5
black violet orange
2 3 4 5
brown orange
violet
(N . m)
15~20
30~40
45~55
60~65
70~75