IO HVAC Controls FS-38 Suction Line Freeze Thermostat
700 Nicholas BLVD Suite 105 Elk Grove Village IL 60007
Chicago IL 60007
The iO HVAC Controls FS-38 Suction Line Freeze Thermostat is a protective temperature switch designed to monitor the suction line of air-conditioning systems. It senses refrigerant line temperature and opens the cooling control circuit when the temperature falls to 38°F, helping prevent evaporator coil freeze-up; it closes again at 50°F. Designed for residential and light commercial AC equipment, it installs easily by snapping onto the suction line. The FS-38 helps protect against issues caused by restricted airflow, dirty filters, clogged coils, blower failure, or low refrigerant.