the Nordyne 624695R is the official updated replacement for the original 624695 model

check your specific wiring diagram for resistor requirements

Maintenance-Free Design: No blow-down is required for the sensor itself

maintaining the same 60Hz 1

This SPST normally closed switch provides precise circuit interruption when flue temperatures reach the 250 degree Fahrenheit setpoint

Field Controls 46266307 System 326070-701 the Nordyne 624695R is theThe Field Controls 46266307 OVD 8 is a high performance automatic oil vent damper engineered to eliminate standby heat loss in large scale residential and light commercial oil fired systems. Designed for 8 inch flue pipes, this 24V power open power close damper is rated for appliances up to 450,000 BTU, making it a critical component for improving HVAC efficiency and reducing fuel consumption by preventing conditioned air from escaping up the chimney