Installation Of Outdoor Unit - Gree GWH12MB-K3DNE3G Service Manual

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 3cm 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 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)
Liquid pipe
Liquid
gas pipe
valve
gas valve
(3) Pretightening the union nut with hand.
(4) Tighten the union nut with torque wrench .
Installation and Maintenance
Drain vent
Chassis
Outdoor drain join t
Drain hose
Fig.19
screw
handle
Fig.21
Pipe joint
Union nut
Fig.22
Refer to the following table for wrench moment of force:
Hex nut diameter(mm)
Φ6
Φ9.52
Φ12
Φ16
Φ19
5. Connect Outdoor Electric Wire
(1) Remove the wire clip; connect the power cord to the
wiring terminal according to the color; fix them with screws.
(As show in Fig.23)
OUTDOOR UNIT
N(1) 2 3
L N
power
N L
cord
power
connection
cord
2 3
N(1)
INDOOR UNIT
Handle
Note: the wiring connect is for reference only,
Fig.23
please refer to the actual one.
(2) Fix the power connection wire with wire clip.
(3) Fix the stopper on handle with screw.
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.
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)
Wall
U-shaped curve
Fig.24
Drain hose
Note:
(1) The through-wall height of drain hose shouldn't be higher
than the outlet pipe hole of indoor unit.(As show in Fig.25)
(2) Slant the drain hose slightly downwards. The drain hose
can't be curved, raised and fluctuant, etc.(As show in Fig.26)
.
Tightening torque(N m)
15~20
30~40
45~55
60~65
70~75
Grounding
Wiring boar d
wire
Wire clip
Power cord
The drain hos
can't raise
upwards
Fig.25
29