38
Installation and Maintenance
Service Manual
4. Connect Indoor and Outdoor Pipes
(1) Remove the screw on the right handle of outdoor unit and then
remove the handle.(As show in Fig.21)
(2) Remove the screw cap of valve and aim the pipe joint at the
bellmouth of pipe.(As show in Fig.22)
gas pipe
Liquid pipe
Liquid
valve
gas valve
Pipe joint
(3) Pretightening the union nut with hand.
(4) Tighten the union nut with torque wrench by referring to the
sheet below.
Fig.22
Piping size Tightening torque(N
.
m)
1/4” 15~20
3/8” 30~40
1/2” 45~55
5/8” 60~65
3/4” 70~75
(1) After tightening the screw, pull the power cord slightly to
check if it is rm.
(2) Never cut the power connection wire to prolong or shorten the
distance.
Note:
can't raise
upwards.
5. Connect Outdoor Electric Wire
(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; x them with screws.(As show in
Fig.23)
6. Neaten the Pipes
(1) The pipes should be placed along the wall, bent reasonably
and hidden possibly. Min. semidiameter of bending the pipe is
10cm.
(2) If the outdoor unit is higher than the wall hole, you must set
a U-shaped curve in the pipe before pipe goes into the room,
in order to prevent rain from getting into the room.(As show in
Fig.24)
(2) Fix the power connection wire and signal control wire with
wire clip (only for cooling and heating unit).
Fig.23
Fig.24
Fig.25
yellow-
green
N(1)
POWER
2
(black)
L(3)
brown
LN
Indoor unit connection
blue
black
brown
blue
yellow-
green
Note: The wiring board is for reference only, please refer to the
actual one.
wal
U-shaped curve
drain hose
(1) The through-wall height of drain hose shouldnt be higher
than the outlet pipe hole of indoor unit.(As show in Fig.25)
(2) The water outlet cant be placed in water in order to drain
smoothly.(As show in Fig.26)
(3) Slant the drain hose slightly downwards. The drain hose cant
be curved, raised and uctuant, etc.(As show in Fig.27)
Note:
The drain hose can't be fluctuant
The drain hose
can't be fluctuant
The water
outlet can't be
fluctuant
The water outlet
can't be placed
in water
Fig.27
Fig.26
Fig.21
screw
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