Samsung Electronics 260
Piping Diagram
Freezing prevention
▪ Purpose
Prevent frost in indoor units to protect compressors. Prevent other accidents.
If there is frost in indoor units, ice may form and fall causing an accident.
▪ Concept
- Frost is detected based on the temperature of indoor unit heat exchangers.
- The temperature for indoor unit heat exchangers is defined during frost preventive control:
- Minimum temperature of temperature at the exit of indoor unit heat exchangers and temperature at the entrance of indoor unit heat
exchangers)
▪ Control specifications in detail
4th step Comp stop : Compressors stop and the fan speed changes for indoor units to the mid level.
Temperature (℃)
-4
-2
0
2
4
7
Normal Operation
7-3 Functions (cont.)
7-3-2-5 Protective control (cont.)
7-3-2 Control (cont.)
To Next Page
Loading...
