Keep in mind that heat moves from a hotter to a colder substance. As a result, the temperature of the evaporator must be lower than the ambient temperature. When utilizing refrigerant-22, the evaporator coil temperature of a residential air conditioner would be 40°F, which is the boiling temperature at 68.5 PSIG (R-22). The refrigerant in … Continue reading How many types of evaporators are in refrigeration?