Description
Durable Switching: Reliable SPST relay contacts designed for standard 120V circulator loads and low-voltage burner circuits
This combination gas valve features a 1/2" NPT inlet and a 3/4" NPT outlet
ensuring exact alignment with the gas manifold and orifice assembly
safe window for flame establishment
offering identical performance and electrical specifications
McDonnell & Miller 63-M Low Water Cut Off R-410A Durable Switching: Reliable SPST relayThe 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