McDonnell & Miller 42S-HD Controller Freon The Emerson Alco 806752 (BVS038)

The Emerson Alco 806752 (BVS038) is a professional-grade 3/8" ODF refrigeration ball valve designed for the safe isolation of suction

The Weil McLain 511-330-085 Flame Proving Module (U-T# 1003-60) is an essential flame safety accessory engineered specifically for Weil McLain LGB boilers

Broad Compatibility: Optimally tuned for Miller

preventing leaks and pressure drops

Reliable Switching: Features a continuous duty coil and mechanical life expectancy of 10 million cycles for long-term operational stability

McDonnell & Miller 42S-HD Controller Freon The Emerson Alco 806752 (BVS038)The McDonnell & Miller 42S HD Controller is a high performance head mechanism only designed for seamless integration into existing Series 42 S float chambers. This replacement head mechanism is engineered for technicians who need to restore steam boiler safety without the labor intensive process of breaking down equalizing piping. Featuring SPST snap action switches, this controller provides high reliability low water cut off protection and precise