McDonnell & Miller 63-M Low Water Cut Off Refrigerant preventing water damage to the

preventing water damage to the furnace plenum and surrounding structure

Versatile Electrical Logic: The SPDT contact arrangement supports both system shutdown and remote alarm notification

this specific kit includes the essential defrost control sensor/limit switch required for accurate temperature monitoring

Can I use this for both LP and Natural Gas

McDonnell & Miller 63-M Low Water Cut Off Refrigerant preventing water damage to theThe McDonnell & Miller 63 M (Part Number 143100) is a heavy duty, float operated mechanical low water cut off designed for superior reliability in both hot water and steam boiler applications. Built for contractors who require a dependable safety interface, this unit features a manual reset mechanism and a robust No. 2 dual switch assembly. These switches provide simultaneous low water cut off protection and a dedicated circuit for an electric water