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6) Make sure no foreign objects are left in the unit after finishing installation.
Improper installation may lead to fire hazard, explosion, electric shock or
injury.
Safety precautions for Installing and Relocating the unit.
To ensure safety, please be mindful of the following precautions.
Warnings
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 (two-way valve). About 30-40 seconds
later, fully close the valve at low pressure side (3-way valve), immediately stop the unit and disconnect power.
Please note that the time for refrigerant recover should not exceed 1 minute.
If refrigerant recovery takes too much time, may be cause compressor overheat, resulting in injury.
4)
During refrigerant recovery, make sure that two-way valve and 3-way valve are fully closed and power is
disconnected before detaching the connecting pipe.
If compressor starts running when the valves is open and connecting pipe is not yet connected, air will be
sucked in and cause pressure rise and then compressor overheat or gas leak, resulting in injury.
5)
When installing the unit, make sure that connecting pipe is securely connected before the compressor starts
running.
If compressor starts running when the valves is open and connecting pipe is not yet connected, air will be
sucked in and cause pressure rise and then compressor overheat or gas leak, resulting in injury.
6)
Prohibit installing the unit at the place where there may be leaked corrosive gas or flammable gas.
If there leaked gas around the unit, it may cause explosion and other accidents.
7)
Do not use extension cords for electrical connections. If the electric wire is not long enough, please contact
a local service center authorized and ask for a proper electric wire.
Poor connection may lead to electric shock or fire.
8)
Use the specified types of wires for electrical connections between the indoor and outdoor units. Firmly
clamp the wires so that their terminals receive no external stresses.
Electric wires with insufficient capacity, wrong wire connections and insecure wire terminals may cause
electric shock or fire.
Air Conditioner Service Manual
16
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