20
SAFETY PRECAUTIONS FOR INSTALLING AND RELOCATING THE UNIT
To ensure safety, please be mindful of the following precautions:
WARNING
• When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or
substances other than the specied refrigerant.
Any presence of air or other foreign substance in the refrigerant circuit will cause system pressure rise
or compressor rupture, resulting in injury.
• When installing or moving this unit, do not charge the refrigerant which is not comply with that
on the nameplate or unqualied refrigerant.
Otherwise, it may cause abnormal operation, wrong action, mechanical malfunction or even series
safety accident.
• 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.
• 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.
• When installing the unit, make sure that connection pipe is securely connected before the com-
pressor 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 in injury.
• Prohibit installing the unit at the place where there may be leaked corrosive gas or ammable
gas.
If there leaked gas around the unit, it may cause explosion and other accidents.
• 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 connections may lead to electric shock or re.
• Use the specied 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 insucient capacity, wrong wire connections and insecure wire terminals may cause
electric shock or re.
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