Using a single-stage switch will result in system errors and unsafe operating conditions

Advanced HVAC Control: Includes terminal connections for occupancy sensors

meeting modern regulatory and disposal standards

Always verify the part number on the existing housing to ensure electrical match-up

ensuring perfect fitment without modifications

Reznor 211130 Pressure Switch Freon Using a single-stage switch willThe 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