Tjernlund Products PS1505 Prover Switch 326070-701 This well has a

This well has a

This gauge is typically utilized in hydronic heating systems and commercial boilers where monitoring operating pressure and supply water temperature is essential for safety

providing the high-speed torque required for consistent blower wheel performance and optimal fuel-air mixing

Replacing worn wires prevents intermittent lockouts and ensures efficient combustion

Designed with a 1 1/8" ODF sweat connection

Tjernlund Products PS1505 Prover Switch 326070-701 This well has aThe Tjernlund Products PS1505 Prover Switch is a critical safety interlock designed specifically for Tjernlund Auto Draft inducers. As a veteran grade fan proving safety switch, it monitors vacuum pressure within the fan housing to verify that the inducer is operating at peak performance before allowing the burner circuit to fire. This SPST air pressure switch features a non adjustable set point of 0. 05" 0. 02" W. C. (increasing vacuum), ensuring