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Before repair, check to make sure that the refrigeration and circulation system is fully
cooled. Otherwise, it may result in burns.
Make sure to use the gas welding machine in a well-ventilated place, as use of it in a
sealed room may cause hypoxia.
Warnings after Repair
Use components listed in the Maintenance Parts List and appropriate tools of the
corresponding model. Do not attempt to modify the unit, as improper use of
components or tools may cause electric shock, overheating or fire.
When installing the unit in a new place, make sure that the place of installation is
strong enough to support the unit’s weight. If the place cannot provide enough
support or the installation is not secure enough, the unit may fall and cause injuries.
Make sure to use a standard mounting rack to install the unit. Improper use of
mounting rack or operations may result in unit dropping and personal injuries.
Fasten the unit securely to the mounting rack that is fixed on the sash frame.
Improper installations may cause unit falling and personal injuries.
When wiring, make sure to use a dedicated power supply and observe the relevant
technical standards, internal wiring rules and installation manual on electrical equipment.
Insufficient power capacity and improper electrical wiring may cause electric shock or fire.
Be sure to use dedicated cables to connect IDU and ODU. Fasten and arrange the
wires in a way that the wires at the joint are not too tight. Improper wiring may result in
overheating or fire.
When connecting IDU and ODU, make sure that the terminal cover doesn't fall off
because cables extend out of the cover. If the covers are improperly fixed, the
terminal connection part may cause electric shock, overheating or fire.
Do not damage or change power cords, as damaged or changed power cords may
result in electric shock or fire.
Do not put heavy objects on power cords. Heating or stretching power cords will
cause damages to power cords.
Use designated refrigerants (R-410A) in the refrigerating system. Do not let air or
other gases in refrigerating system, as it may generate high pressure and hence
damage the unit.
If refrigerant gas leaks, make sure to find the leaking points and repair them before
refrigerant can be added. If leaking points cannot be determined, stop repair work
immediately and perform evacuation. Close service valves to prevent refrigerant gas
from entering the room. Refrigerant gas is nontoxic in itself. However, when it comes
in contact with fire, or fans, other heaters, furnaces, it may generate toxic gases.
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