Durable Polyethylene Construction: Offers superior resistance to stress cracking and chemical exposure common in mechanical rooms

providing a comprehensive solution for liquid line maintenance

Operating with a switch opens at 220°F and a switch closes at 190°F (also referred to as an L220-30F limit control)

Always verify the secondary voltage from the furnace transformer before wiring to prevent damage to the solenoid coil

McDonnell & Miller 64 Low Water Cut Off Els PW 29614 Durable Polyethylene Construction: Offers superiorThe McDonnell & Miller 64 (Part Number 143600) is a heavy duty mechanical low water cut off engineered for reliable water level regulation in residential and commercial hot water and steam boilers. Designed for systems with a maximum boiler pressure of 50 PSI, this auto reset control features a 1" NPT threaded connection for seamless integration into equalizing piping. It utilizes a packless bellows construction and double pole, single throw (DPST)