Reznor 112752 Blocked Vent SwitchReznor 112752 is a blocked vent switch engineered for HVAC systems, delivering reliable safety and precise control in commercial and industrial setups. This blocked vent switch serves as a vital vent safety device, helping prevent improper venting and protecting burners, while compatible with 225d and 36tx46 configurations to fit your equipment. Designed as a durable HVAC replacement part, it integrates smoothly into existing ductwork, offering

delivering dependable voltage conversion for cooling and heating systems

The unit features a single SPDT relay output and a 7°F differential

it fits compatible outdoor condenser assemblies and aligns with OEM specifications for reliable reinstallation

Armstrong 65W63 Furnace Pressure Switch is a dependable component that monitors vent and inducer pressure to safeguard furnace ignition and cycling

Part numbers included: PA5524AKA6

The robust construction resists wear in busy mechanical rooms

Key advantages include precise monitoring

It features a compact 5-13/16 in

Compatible with flame amplifiers: Used On R7249A/B

It supports regular maintenance by replacing worn components that can impact burner performance and energy efficiency

installer-friendly replacement

wiring harnesses