By providing precise resistance feedback to the defrost control board

Built to withstand the thermal stress of high-cycle heating and cooling environments

the 800080B is designed to seal effectively against various header materials used in Raypak's copper finned tube heater lines

ensuring the thermostat scaleplate remains legible and fixed during calibration

ensuring a secure electrical interface with the control board

Nordyne 667309R Fan Blade By providing precise resistance feedbackThe Nordyne 667309R Fan Blade is a critical replacement component engineered for specific HVAC condenser and furnace applications requiring high velocity airflow. This 18 inch diameter propeller features a 4 blade configuration with a 30 degree pitch, optimized to maintain correct head pressure and heat transfer efficiency. Designed as the direct superseding OEM replacement for Nordyne 667309, it utilizes a 1 2 inch bore and is calibrated for