McDonnell & Miller 94-M Pump Controller THPU32HP7Y Robust Construction: Microprocessor-controlled circuitry designed

Robust Construction: Microprocessor-controlled circuitry designed to withstand the vibration and thermal cycling common in indoor air handlers

Lockout can be cleared by cycling the thermostat or removing the 24 VAC input power for at least 5 seconds

The unit provides an equal percentage flow characteristic with a 7

this valve ensures stable operation across varying outdoor ambient temperatures

With a 1/2" NPT inlet and a 1/2" NPT bottom outlet configuration

McDonnell & Miller 94-M Pump Controller THPU32HP7Y Robust Construction: Microprocessor-controlled circuitry designedThe McDonnell & Miller 94 M is proof of heavy duty reliability for high pressure steam applications, serving as a robust combination low water cut off and pump controller. Designed specifically for steam boilers with a maximum pressure of 250 psi, this unit utilizes manual reset SPDT switches to ensure precise water level management and failsafe protection. The dual snap acting switches prevent rapid cycling, reducing mechanical wear on your pump