Compact footprint: The short-form design simplifies installation in tight mechanical rooms or enclosures

The McDonnell & Miller 194-7B typically utilizes 1-1/4 inch NPT connections

Always check your nameplate data before installation to ensure the action type matches your system requirements

With a fixed 20 degree F differential

This model excels in managing indoor air quality (IAQ) through a dedicated humidistat function

McDonnell & Miller 194 Controller Els PW 17895 Compact footprint: The short-form designAs a veteran HVACR technician, you know that maintaining precise water levels in high pressure systems isn't just about efficiencyit is about safety and equipment longevity. The McDonnell & Miller 194 Low Water Cut Off and Pump Controller (Part Number 166600) is the industry standard for commercial and industrial steam boilers, engineered to operate reliably in environments up to 250 PSI max pressure. This heavy duty combination LWCO and pump