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ENGLISH
Internal protections via the unit control system
This internal protection operates if an internal fault occurs in the air conditioner.
Type Description
Prevent cold air
The internal fan not operate to prevent cold air blowing when the heat pump is
heating until it has warmed up.
De-ice cycle
The internal fan will be off to prevent cold air blowing when the heat pump is in
heating mode and De-icing.
Anti-Freezing of Indoor Heat
Exchanger
The compressor will be off if the heat exchanger temp of indoor unit decrease to
0°C or more to prevent the ice on the heat exchanger.
Protect compressor
The air conditioner does not start operating immediately to protect the compressor
of the outdoor unit after it has been started.
• If the heat pump is operating in Heat mode, De-ice cycle is actuated to remove frost from an outdoor unit
that may have deposited at low temperatures.
• The internal fan is switched off automatically and restarted only after the de-ice cycle is completed.
NOTE
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