What is the design boiling point for most evaporator coils in residential air-conditioning?

The design boiling point for most evaporator coils in residential air conditioning systems typically ranges from 30°F to 40°F (-1°C to 4°C). This temperature allows the refrigerant to absorb heat effectively from the indoor air, ensuring efficient cooling. The exact boiling point can vary based on the refrigerant used and the specific system design. Maintaining this temperature helps optimize energy efficiency and system performance.