Nordyne 624345R Outdoor Thermostat

The Nordyne 624345R Outdoor Thermostat is designed to monitor air temperature and support control heating operations in compatible HVAC systems. It is commonly used with heat pump equipment to determine when outdoor conditions require a change between heat pump operation and auxiliary or backup heating. Installed as part of the outdoor unit controls, this thermostat supports proper system sequencing based on ambient temperature. It assists maintain efficient operation while assisting in protecting equipment from operating outside intended temperature conditions in residential and light commercial applications.