16
Installation prepare
1.
When installing or relocating the unit, be sure to keep the refrigerant circuit free
from air or substances other than the specified refrigerant.
—
Any presence of air or other foreign substance in the refrigerant circuit will cause system
pressure rise or compressor rupture, resulting in injury.
2.
When installing or moving this unit, do not charge the refrigerant which is not
comply with that on the nameplate or unqualified refrigerant.
—
Otherwise, it may cause abnormal operation, wrong action, mechanical malfunction or
even series safety accident.
3.
When refrigerant needs to be recovered during relocating or repairing the unit,
be sure that the unit is running in cooling mode. Then, fully close the valve at high
pressure side (liquid valve). About 30-40 seconds later, fully close the valve at low
pressure side (gas valve), immediately stop the unit and disconnect power. Please
note that the time for refrigerant recovery should not exceed 1 minute.
—
If refrigerant recovery takes too much time, air may be sucked in and cause pressure
rise or compressor rupture, resulting in injury.
4.
During refrigerant recovery, make sure that liquid valve and gas valve are fully
closed and power is disconnected before detaching the connection pipe.
—
If compressor starts running when stop valve is open and connection pipe is not yet
connected, air will be sucked in and cause pressure rise or compressor rupture, resulting
in injury.
To ensure safety, please be mindful of the following precautions.
WARNING
Safety precautions for installing and relocating the unit
Grounding requirement
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. For models with a power plug, make sure the plug is
within reach after installation.