McDonnell & Miller 310462 Switch Assembly R-410A Always verify the opening and

Always verify the opening and closing temperatures against your unit's wiring diagram to ensure proper safety compliance

Start by verifying 24V power at the control and inspecting the sparker wire (P63250) for damage or loose connections

Operational Efficiency: Optimizes static pressure to ensure safe and reliable furnace venting

The Johnson Controls P100CA-2 is a high-pressure encapsulated pressure control designed for direct-mount applications in commercial refrigeration and HVAC systems

McDonnell & Miller 310462 Switch Assembly R-410A Always verify the opening andThe McDonnell & Miller 310462 (Model SWA 150S) is a heavy duty snap action switch assembly designed for precise low water cut off and pump controller transitions. This automatic reset assembly is a critical replacement component for Series 150S and Series 157S mechanical boiler controls. Built to manage steam boiler water levels up to a maximum operating pressure of 150 psi, the SWA150S provides reliable SPDT switching to prevent dry fire conditions