this adjustable pressure control operates within specific setpoints to protect the refrigeration circuit from damage caused by extreme pressure fluctuations

within its 0-5 PSI operating range

a licensed HVACR technician should perform the replacement to ensure all safety interlocks are functioning correctly

While the Imblue Technology adds corrosion resistance

The 'R' indicates a revised or updated version of the original 667210 part

Reznor 211791 Grill Assembly 320788-703 this adjustable pressure control operatesThe Reznor 211791 Grill Assembly is a critical OEM component engineered specifically for the Reznor UDAS series unit heaters. This 3. 5 inch diameter exhaust grill ensures proper venting and flue gas discharge, maintaining the pressure balance required for high efficiency combustion. As a direct replacement part, the Reznor 211791 prevents debris ingress and protects the exhaust outlet from environmental factors that can compromise airflow. For