31
Requirements for electric connection
Grounding requirement
Safety precaution
1. Must follow the electric safety regulations when installing the unit.
2. According to the local safety regulations, use qualified power supply circuit and
air switch.
3. Make sure the power supply matches with the requirement of air conditioner.
Unstable power supply or incorrect wiring or malfunction. Please install proper
power supply cables before using the air conditioner.
4. Properly connect the live wire, neutral wire and grounding wire of power
socket.
5. Be sure to cut off the power supply before proceeding any work related to
electricity and safety. For models with a power plug, make sure the plug is
within reach after installation.
6. Do not put through the power before finishing installation.
7. If the supply cord is damaged, it must be replaced by the manufacturer, its
service agent or similarly qualified persons in order to avoid a hazard.
8. The temperature of refrigerant circuit will be high, please keep the
interconnection cable away from the copper tube.
9. The appliance shall be installed in accordance with national wiring regulations.
10. Appliance shall be installed, operated and stored in a room with a floor area
larger than Xm
2
. (Please refer to table “a” in section of “Safety operation of
flammable refrigerant” for Space X.)
1. The air conditioner is the first class electric appliance. It must be properly
grounding with specialized grounding device by a professional. Please make
sure it is always grounded effectively, otherwise it may cause electric shock.
2. The yellow-green wire in air conditioner is grounding wire, which can’t be used
for other purposes.
3. The grounding resistance should comply with national electric safety
regulations.
4. The appliance must be positioned so that the plug is accessible.
5. An all-pole disconnection switch having a contact separation of at least 3mm in
all poles should be connected in fixed wiring.
Please notice that the unit is filled with flammable gas R32. Inappropriate
treatment of the unit involves the risk of severe damages of people and
material. Details to this refrigerant are found in chapter “refrigerant”.
32
Installation of indoor unit
Step one: choosing installation location
Step three: open piping hole
Recommend the installation location to the client and then confirm it with the client.
Step two: 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.
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.
2. Open a piping hole with the diameter of Φ55 or Φ70 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°.
QC:
Left
Wall
Φ55mm
Right
Mark in the middle of it
Level meter
Wall
150mm
Space
to the
wall
above
Space
to the
wall
above
Space
to the
wall
above
Space
to the
wall
above
150mm
Φ55mm
(Rear piping hole)
QD:
Wall
Left
Wall
Φ55mm
Right
Mark in the middle of it
Level meter
(Rear piping hole)
150mm
150mm
Φ55mm
(Rear piping hole)
Left
Wall
Φ55mm
Right
Mark in the middle of it
Level meter
Wall
150mm
150mm
Φ55mm
(Rear piping hole)
QB:
QE:
Space
to the
wall
above
Space
to the
wall
above
(Rear piping hole)
(Rear piping hole)
Left
Wall
Φ70mm
Right
Mark in the middle of it
Level meter
Rear piping hole
Wall
150mm
150mm
Φ70mm
Rear piping hole
Space
to the
wall
above
Space
to the
wall
above
