McDonnell & Miller 194-A Controller THPU32HP7Y Always verify your line voltage

Always verify your line voltage before wiring to prevent motor failure

ensuring consistent performance in high-traffic areas

SPNO Circuitry: Designed for close-on-fall operation

and low-pressure steam service in 2nd-stage HVAC loops

McDonnell & Miller 194-A Controller THPU32HP7Y Always verify your line voltageThe McDonnell & Miller 194 A is a heavy duty combination low water cut off and pump controller designed specifically for commercial and industrial steam boiler applications. Engineered for systems with a maximum steam pressure of 250 PSI, this unit features dual snap acting SPDT switches to ensure precise boiler water level control and reliable low water protection. The 194 A series is often selected by technicians for high pressure environments where