For 277 VAC or multi-tap applications

the internal coil or mechanism is likely compromised

all of which are field selectable via onboard DIP switches

Secure Interfacing: Standard 1/4" barb connection provides a tight seal for vacuum lines

Featuring a 2" NPT connection

McDonnell & Miller 193 Controller Els PW 29614 For 277 VAC or multi-tapThe McDonnell & Miller 193 (Part Number 163400) provides heavy duty combination low water cut off and pump control for commercial and industrial steam boilers. Engineered for high pressure systems with a 150 PSI maximum pressure rating, this unit features dual snap acting SPDT switches to ensure precise differential control and reliable burner shut down. The proportional action of the float mechanism maintains tight water level tolerances, preventing