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GB
50
Safety precautions for installing and
relocating the unit
To ensure safety, please be mindful of the following precautions.
WARNING:
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 the 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
(gasvalve), immediately stop the unit and disconnect power. Please not 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.
5. When installing the unit, make sure that connection pipe is securely connected before
the compressor starts running. 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 injury.
6. Prohibit installing the unit at the place where there may be leaked corrosive gas or
flammable gas. If there are leaked gasses 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 authorized service center and ask for a proper electric wire.
Poor connections 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 not external stresses.
Electric wires with insufficient capacity, wrong wire connections and insecure wire terminals
may cause electric shock or fire.
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