93
Installation and Maintenance
Service Manual
8.5 Installation of Indoor Unit
1. Choosing Installation Iocation
Recommend the installation location to the client and then confirm
it with the client.
2. I
nstall
W
all-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.
5-10
°
Φ55/70mm
Indoor
Outdoor
Pay attention to dust prevention and take relevant safety
measures when opening the hole.
Fig.2
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,shown as below.(As show in Fig.1)
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)
(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)
Note:
Fig.3
Fig.4
Fig.1
Wall
Wall
(Rear piping hole)
(For some models)
(Rear piping hole)
Space
to the
wall
above
150mm
Left
Space
to the
wall
above
150mm
Right
Mark in the middle of it
Level meter
Left Rear left
Right
Rear right
Cut off
the hole
Left
Right
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
Refer to the following table for wrench moment of force
:
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)
Insulating pipe
Torque wrench
Open-end
wrench
Indoor pipe
Pipe
Union nut
Union nut
Pipe joint
Pipe
Fig.5
Fig.6
Fig.7
