Installation is streamlined via the 1/4" flare nut with capillary connection

Direct Update: Optimized design replaces the older CBK2PD240VA060S with identical mounting footprints

Which HVAC models are compatible with this module

Veteran technicians recognize that utilizing the correct Armstrong replacement gasket is essential for preserving the integrity of the integrated valve station

McDonnell & Miller 51-S-2 Switch 30067439-890 Installation is streamlined via theThe McDonnell & Miller 51 S 2 is a heavy duty mechanical water feeder and low water cut off (LWCO) designed for low pressure steam and hot water boilers. Engineered for systems with a maximum vessel pressure of 35 psi, this unit features a snap acting SPDT switch that ensures positive electrical contact for burner control or alarm signaling. The 1" NPT connections allow for straightforward integration into existing boiler piping, providing a reliable