Critical Safety Logic: Precisely monitors vent backpressure to prevent the operation of the burner during flue blockages

utilizing standard spade terminals and a flush-mount flange

Application Specific: Engineered for use in specific Carrier HVAC systems

making it plenum-rated tubing suitable for installation within air handling spaces

This heavy-duty instrument features a 3 1/2" diameter face with a dual 40 to 240-degree scale

Belimo B211 Valve 319847-401 Critical Safety Logic: Precisely monitorsThe Belimo B211 is a high performance 1 2 inch NPT 2 way characterized control valve designed for precision in HVAC hydronic systems. Featuring a 1. 9 Cv rating, this valve utilizes a specialized equal percentage flow characteristic, made possible by a built in Tefzel characterizing disc. This design compensates for the non linear heat transfer of coils, ensuring stable modulating control and preventing system hunting. The unit is constructed with a