this SPST (Single Pole Single Throw) control features an open-on-high configuration

Can I use this on a cold-start boiler

sealed interface with the existing harness on models like the PDV40 and PDV50 series

Designed with 70% fewer moving parts than reciprocating models

the YP100 ensures rapid shutdown during a loss of flame signal

Lennox 76M31 Sensor 322057-301 this SPST (Single Pole SingleThe Lennox 76M31 is a high precision return air duct relative humidity sensor engineered for demanding commercial and industrial HVACR applications. As a non communicating duct mount RH sensor, it provides critical real time moisture data to the Lennox Prodigy and CORE unit controllers, essential for managing Humiditrol reheat systems and supermarket humidity control. Designed for technical reliability, this 24VAC HVAC humidity sensor features a