Piping Diagram
Samsung Electronics 229
Solenoid Valve – EVI, Solenoid Valve - EVI Bypass
Solenoid Valve - Hot Gas Bypass
Solenoid Valve - Hot Gas Bypass 2
▪ Purpose
▪ Concept
-
- Solenoid valve - EVI Bypass : If a compressor has stopped, the valve is closed to prevent the refrigerant that has passed through
▪ Control specifications in detail
▪ Purpose
▪ Concept
▪ Control specifications in detail
▪ Purpose
Prevent refrigerant from stagnating in the high pressure gas pipe in cooling-only mode.
▪ Concept
-
- If the valve is closed, refrigerant stagnates in the high pressure gas pipe causing a lack of refrigerant.
- HR Only
▪ Control specifications in detail
cooling oil return mode is active.
EVI Mode
Electronic Expansion Valve
- EVI
Solenoid valve
- EVI
Solenoid valve
- EVI Bypass
* Condition
EVI Bypass mode Open Open Open Normal Operation
EVI On mode Open Open Close
↑
- Ambient Temp. < 36℃ (cool)
< 10℃ (heat)
- Control by unit
EVI Off mode Close Open Open
- Safety start
- Defrost
7-3 Functions (cont.)
7-3-2-1 Actuator (cont.)
7-3-2 Control (cont.)
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