Gree GWH07AFAXA-K3NNA1A Service Manual page 62

Service Manual
2. Install Wall-mounting Frame
(1) Hang the wall-mounting frame on the wall; adjust it in
horizontal position with the level meter and then point out the
screw fixing holes on the wall.
(2) Drill the screw fixing holes on the wall with impact drill (the
specification of drill head should be the same as the plastic
expansion particle) and then fill the plastic expansion particles in
the holes.
(3) Fix the wall-mounting frame on the wall with tapping screws
and then check if the frame is firmly installed by pulling the frame.
If the plastic expansion particle is loose, please drill another fixing
hole nearby.
3. Install Wall-mounting Frame
(1) Choose the position of piping hole according to the direction
of outlet pipe. The position of piping hole should be a little lower
than the wall-mounted frame.(As show in Fig.1)
Wall
Space
to the
wall
above
150mm
Left
Φ55mm/Φ70mm
(Rear piping hole)
(For some models)
(2) Open a piping hole with the diameter of Φ55mm or Φ70mm
on the selected outlet pipe position.In order to drain smoothly,
slant the piping hole on the wall slightly downward to the outdoor
side with the gradient of 5-10°. (As show in Fig.2)
Indoor
°
5-10
Note:
Pay attention to dust prevention and take relevant safety
measures when opening the hole.
4. Outlet Pipe
(1) The pipe can be led out in the direction of right, rear right, left
or rear left. (As show in Fig.3)
(2) When selecting leading out the pipe from left or right, please
cut off the corresponding hole on the bottom case. (As show in
Fig.4)
Right
Fig.3
Installation and Maintenance
(Rear piping hole)
Fig.1
Outdoor
Φ55mm
Φ70mm
Fig.2
Left
Cut off
Rear left
the hole
Fig.4
5. Connect the Pipe of Indoor Unit
(1) Aim the pipe joint at the corresponding bellmouth. (As show in
Fig.5)
(2) Pretightening the union nut with hand.
(3) Adjust the torque force by referring to the following sheet.
Place the open-end wrench on the pipe joint and place the
torque wrench on the union nut. Tighten the union nut with torque
wrench. (As show in Fig.6)
(4) Wrap the indoor pipe and joint of connection pipe with
insulating pipe, and then wrap it with tape. (As show in Fig.7)
Pipe joint
Wall
Space
to the
wall
above
150mm
Right
Φ55mm/Φ70mm
Refer to the following table for wrench moment of force:
6. Install Drain Hose
(1) Connect the drain hose to the outlet pipe of indoor unit. (As
show in Fig.8)
(2) Bind the joint with tape. (As show in Fig.9)
Right
Note:
(1) Add insulating pipe in the indoor drain hose in order to prevent
condensation.
(2) The plastic expansion particles are not provided.
(As show in Fig.10)
Pipe
Union nut
Torque wrench
Indoor pipe
Fig.5
Insulating pipe
Fig.7
Tightening torque (N . m)
Piping size (inch)
1/4
3/8
1/2
5/8
3/4
Drain hose
Outlet
pipe
Fig.8
Open-end
wrench
Union nut
Pipe
Fig.6
15~20
30~40
45~55
60~65
70~75
Drain hose
Outlet pipe
Tape
Fig.9
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