Reznor 211130 Pressure Switch Freon protecting the heat exchanger from

protecting the heat exchanger from structural fatigue caused by restricted airflow or blower failure

When troubleshooting thermopile voltage drop or a pilot that fails to hold the valve open

The White-Rodgers F55-0088 Packing Nut is a critical component designed for remote bulb controls and similar immersion applications

supporting fluid temperatures up to 200°F

ensuring a consistent and airtight seal to prevent powder clumping and moisture ingress

Reznor 211130 Pressure Switch Freon protecting the heat exchanger fromThe Reznor 211130 Pressure Switch is a critical safety and operational component designed for Reznor HVAC equipment, specifically unit heaters and gas fired duct furnaces. This OEM replacement part is factory calibrated to a 1. 70" wc setpoint, ensuring the inducer motor or venter assembly provides sufficient airflow before allowing the ignition sequence to proceed. As a single pole double throw (SPDT) switch, it offers versatile electrical