15
Step 4: Connect indoor and outdoor pipe
union nut
pipe joint
1. Remove the screw on the right handle 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
liquid valve
gas valve
Hex nut diameter Tightening torque (N
.
m)
Φ 6
15~20
Φ 9.52
30~40
Φ 12
45~55
Φ 16
60~65
Φ 19
70~75
Step 5: Connect indoor and outdoor pipe
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 color,fix them with screws.
2. Fix the power connection wire and signal control wire with wire clip (only for cooling and
heating unit).
Note:
● After tighten the screw,pull the power cord slightly to check if it is firm.
● Never cut the power connection wire to prolong or shorten the distance.
N(1)
2
3
N
N
L
L
Indoor unit connection
Power
brown
brown
yellow-
green
yellow-
green
blue
blue black
Installation of outdoor unit
