Description
Reznor RZ202048 A/R Limit Switch/Thermostat is an automatic reset temperature safety control used in HVAC heating system to monitor internal equipment temperature and prevent overheating conditions. It is installed in compatible unit heaters where it senses heat buildup in the burner or heat exchanger area and opens or closes the electrical circuit when temperature reach approximately 240F. The switch is integrated into the units safety control circuit and works alongside the blower motor ignition system and main control board to maintain safe operating conditions during heating cycle. It is used in gas-fired equipment during servicing, replacement.
