Reznor rz205444 Pressure Switch VR175 VR200

Product Description

The REZNOR rz205444 is a pressure switch designed for use in Reznor unit heaters and heating systems. Pressure switches monitor the operation of the combustion air inducer, confirming adequate airflow before allowing the ignition sequence to proceed. This safety component helps prevent unsafe furnace or heater operation when proper venting conditions are not met. Licensed HVAC technicians and commercial heating service professionals typically source this switch as a direct replacement during maintenance or troubleshooting calls on Reznor equipment.

The rz205444 pressure switch is intended for Reznor VR175 and VR200 unit heaters. These models are commonly found in commercial and industrial applications such as warehouses, garages, and manufacturing facilities where gas-fired unit heaters provide space heating. Replacement of this switch is a standard service task when diagnosing a no-heat or lockout condition traced to the pressure switch circuit.

Key Features

• OEM-replacement pressure switch for Reznor unit heaters
• Monitors combustion air inducer operation as a safety interlock
• Prevents ignition sequence without confirmed airflow
• Direct fitment for VR175 and VR200 heater models

Compatibility

Compatible with Reznor VR175 and VR200 unit heaters as stated in product data.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with gas-fired unit heater service. Shut off electrical power and gas supply to the unit before beginning any work. Inspect the pressure switch hose and port for blockage or moisture before installing the replacement switch. Work should comply with applicable local codes and the manufacturer service documentation for the specific heater model.

Technical Specifications

• Application: Combustion air pressure switch for gas-fired unit heaters

Standard Information

• Brand: REZNOR
• Manufacturer Part Number: rz205444