Safety Integration: Built-in float switch with isolated SPDT contacts for seamless connection to building automation systems or unit shut-off

Manual Reset Mechanism: Ensures thorough HVAC system diagnostics are performed before the furnace is brought back online

This HVAC gas valve replacement ensures consistent gas flow to both the main burner and pilot assembly

Engineered for vertical mounting

making it suitable for low-pressure steam heating service

McDonnell & Miller 94-HDLS Pump Controller 30067439-890 Safety Integration: Built-in float switchThe McDonnell & Miller 94 HDLS (Part Number 165302) is a heavy duty head mechanism only designed for high pressure steam applications. Engineering for commercial and industrial steam boilers, this component serves as a direct replacement for the internal guts of Series 94 and 194 combination low water cut off and pump controller units. This specific model is provided less switch, allowing technicians to utilize existing compatible switch assemblies or