Installation Of Outdoor Unit - Lennox LI012HI-210P432 Service Manual

8.6 Installation of Outdoor Unit

1. Fix the Support of Outdoor Unit(Select it according to
the actual installation situation)
(1) Select installation location according to the house structure.
(2) Fix the support of outdoor unit on the selected location with
expansion screws.
Note:
(1) Take sufficient protective measures when installing the
outdoor unit.
(2) Make sure the support can withstand at least four times the
unit weight.
(3) The outdoor unit should be installed at least 3cm above the
floor in order to install drain joint.(As show in Fig.18)
(4) For the unit with cooling capacity of 2300W~5000W, 6
expansion screws are needed; for the unit with cooling capacity
of 6000W~8000W, 8 expansion screws are needed; for the
unit with cooling capacity of 10000W~16000W, 10 expansion
screws are needed.
At least 1 3/16inch above the floor
Fig.18
2. Install Drain Joint(Only for cooling and heating unit)
(1) Connect the outdoor drain joint into the hole on the chassis.
(2) Connect the drain hose into the drain vent.
(As show in Fig.19)
3. Fix Outdoor Unit
(1) Place the outdoor unit on the support.
(2) Fix the foot holes of outdoor unit with bolts.
(As show in Fig.20)
Foot holes
Foot holes
Fig.20
4. Connect Indoor and Outdoor Pipes
(1) Remove the screw on the right Cable-Crossing board 2 or
handle and valve cover of outdoor unit and then remove the
Cable-Crossing board 2 or handle and valve cover.(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)
Liquid pipe
Liquid
gas pipe
valve
gas valve
Fig.22
(3) Pretightening the union nut with hand.
(4) Tighten the union nut with torque wrench .
34
Drain vent Chassis
Outdoor drain join t
Drain hose
Fig.19
Cable-Crossing
board 2
Valve Cover
Fig.21
Pipe joint
Union nut
Refer to the following table for wrench moment of force:
Hex nut diameter(inch)
Φ1/4
Φ3/8
Φ1/2
Φ5/8
Φ3/4
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; fix them with screws.
(As show in Fig.23)
(2)Fix the power connection wire and signal control wire with
wire clip (only for cooling and heating unit).
(3) Fix the stopper on handle with screw.
Cable-Crossing board 2
12K
N(1) 2
L1 L2
red
white
black
(blue) (brown)
Indoor unit connection
24K
N(1) 2
Cable-Crossing board 1 green white
(yellow- (blue) black (brown)
green)
Indoor unit connection
Note: the wiring board is for reference only,please refer to the
actual one.
Fig.23
Note:
(1) After tightening the screw, pull the power cord slightly to
check if it is firm.
(2) Never cut the power connection wire to prolong or shorten
the distance.
(3)The connecting wire and connection pipe cannnot touch
each other,
(4)Top cover of outdoor unit and electric box assembly should
be fixec by the screw.Otherwise,it can cause a fire,or short
circuit caused by water or dust.
Install the over line pipe
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 3
15/16 inch.
(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)
Fig.24
U-shaped curve
Drain hose
Service Manual
Tightening torque(ft·Ibf)
11.10~14.75
20.12~29.50
33.19~40.56
44.24~47.94
51.32~55.31
18K:
3
N(1) 2 3 L1 L2
green
( yellow- green )
black(brown)
L2
white (blue)
L1
green
white red
POWER
(brown) (yellow-
green
(blue) black
green)
green
( yellow- )
Indoor unit connection
3 L1 L2 G
red black white green
(brown) (blue) (yellow-
green)
L1 L2
POWER
wire-passing
hole
wire pipe
Fixed nut
Finish
The drain hos
can't raise
upwards
Wall
Fig.25
Installation and Maintenance
G
green(yellow-green)
white(blue)
L2
black(brown)
L1
POWER