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5-9 Protection operations in Heat Mode
5-9.1 Cold draft
This feature prevents the supply of cold air forcing the indoor fan to a speed which cannot be changed
by the user. As soon as the protection mode is exited speed can be changed manually through the
remote controller. The protection acts in the following
5-9.2 Defrost
The defrost process is controlled by a detection algorithm designed in order to mantain optimal
utilization of the heat pump capacity especially during negative outdoor temperature conditions.
During DEFROST OPERATION the main components operates according to the following chart:
30 seconds
6 seconds
20
HEAT PUMP MODELS
30 seconds
6 seconds
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