Vulcain IAQPT-SM-A Monitor 30067439-890 This is a Single Pole

This is a Single Pole Single Throw (SPST) relay with a Normally Open (N/O) contact

Designed as a critical boiler safety device

tight-fitting integration with existing pressure switch hoses

Substantial Capillary Reach: The 36-inch capillary tube provides flexibility for remote mounting in complex control panels

The Lennox 82A6301 is functionally identical to the 82A63

Vulcain IAQPT-SM-A Monitor 30067439-890 This is a Single PoleThe Vulcain IAQPT SM A is a high precision, wall mounted CO2 gas monitor engineered for demand control ventilation (DCV) and indoor air quality management. As a direct replacement for legacy models including the 90DM4SM C, IAQ SM A, and M 512041, this unit utilizes advanced non dispersive infrared (NDIR) dual beam technology to compensate for sensor drift and ensure long term signal stability. Designed for seamless integration into building management