Installation Of Outdoor Unit - Gree GWH18AAC-K3NNA1A 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.
Drain vent
Drain hose
At least 3cm above the floor
A
Fig.18
2. Install Drain Joint(Only for cooling and heating unit)
handle
(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)
screw
3. Fix Outdoor Unit
(1) Place the outdoor unit on the support.
(2) Fix the foot holes of outdoor unit with bolts.
A
(As show in Fig.20)
A
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
Fig.22
(3) Pretightening the union nut with hand.
(4) Tighten the union nut with torque wrench .
28
Chassis
Drain vent
Chassis
Outdoor drain join t
Outdoor drain join t
Drain hose
Fig.19
Note: the wiring connect is for reference only,
please refer to the actual one
Drain vent
Drain vent
Drain hose
Drain hose
Wall
U-shaped curve
handle
handle
screw
Fig.21
screw
Pipe joint
Union nut
Refer to the following table for wrench moment of force:
Hex nut diameter(mm)
Φ9.52
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)
Handle
Cool Only Type: handle
Fig.23
N(1) 2 3
blue black brown
yellow-green
Indoor unit connection
Heat Pump Type:
Note: the wiring connect is for reference only,please refer
N(1) 2 3 4 5
to the actual one.
blue black brown violet orange
yellow-
green
(2) Fix the power connection wire and signal control wire with
Indoor unit connection
wire clip (only for cooling and heating unit).
.
Note:
(1) After tightening the screw, pull the power cord slightly to
check if it is firm.
Chassis
(2) Never cut the power connection wire to prolong or shorten
Outdoor drain join t
Chassis
the distance.
Outdoor drain join t
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)
U-shaped curve
U-shaped curve
Fig.24
Note:
(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) Slant the drain hose slightly downwards. The drain hose
cant be curved, raised and fluctuant, etc.(As show in Fig.26)
Tightening torque(N . m)
Φ6 15~20
30~40
Φ12 45~55
Φ16 60~65
Φ19 70~75
18K: 24K
N(1)
N(1) 2 4 5
yellow-
blue black brown violet
blue black violet orange
green
yellow-
green
Indoor unit connection
Indoor unit connection
Handle
Handle
Note: the wiring connect is for reference only,
please refer to the actual one
Note: the wiring connect is for reference only,
please refer to the actual one
Wall
Wall
Fig.25
Installation and Maintenance
Service Manual
2 3 4 5
orange
Cool Only Type:
N(1) 2 3
Cool Only Type:
blue black brown
N(1) 2 3
yellow-green
blue black brown
Indoor unit connection
Heat Pump Type:
yellow-green
Indoor unit connection
N(1) 2 3 4 5
Heat Pump Type:
blue black brown violet orange
N(1) 2 3 4 5
yellow-
green
blue black brown violet orange
Indoor unit connection
yellow-
green
Indoor unit connection
.
.
The drain hos
can't raise
upwards