Samsung AM072BXV Series Service Manual page 275

Piping Diagram
7-3 Functions (cont.)
7-3-2 Control (cont.)
7-3-2-6 Indoor unit control (cont.)
Cold Air Prevention
▪ Purpose
Control the fan speed to avoid discomfort of people in the room due to cold air in cooling mode or during the initial start-up
of heating.
▪ Concept
- The fan does not operate if the indoor heat exchanger temperature is low in heating mode.
The fan speed is restricted if the temperature is low.
▪ Control specifications in detail
- Condition(s) required to use the mode : Indoor units are operating in heating mode
- The fan speed is restricted according to the average heat exchanger temperature and temperature variations
(increase/decrease).
38℃
36℃
34℃
32℃
30℃
28℃
26℃
20℃
Samsung Electronics
High or lower
Mid or lower
Low
Low Low
Fan off
If the temp rises
If the temp drops
High or lower
Airflow in heating mode
Mid or lower
Low
Low Low
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