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The checks and maintenance operations described are essential to guarantee the
efficiency of the air conditioner. The frequency of these operations varies according to the
characteristics of the area, the amount of dust, etc.
(1) The described operations should be performed more frequently if the area of installation
is very dusty.
(2) These operations must always be performed
by qualified personnel. For more detailed
information, see the Installation Manual.
Internal protections via the unit control system
This internal protection operates if an internal fault occurs in the air conditioner.
Type
Against cold air
De-ice cycle
Anti-protection of
internal battery
Protect compressor
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.
The internal fan will be off to against cold air when the heat pump is
heating.
The internal fan will be off to against cold air when the heat pump is
heating.
The compressor will be off to protect internal battery when the air con-
ditioner operates in Cool mode.
The air conditioner does not start operating immediately to protect the
compressor of the outdoor unit after it has been started.
Description
cleaning and maintaining _39
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