1. 10°F to 12°F: Superheat for high-temperature evaporators. (30°F+ evaporators.)
2. 5°F to 10°F: Superheat for medium-temperature evaporators. (0°F to 30°F evaporators.)
3. 2°F to 5°F: Superheat for low-temperature evaporators. (0°F and below evaporators.)
Turn the valve stem counterclockwise to decrease the superheat (increasing the refrigerant flow to the evaporator).
Turn the valve stem clockwise to increase the superheat (decreasing the flow of refrigerant to the evaporator).