McDonnell & Miller 250-3/4-50 Valve Els PW 17895 as long as the DPST

as long as the DPST switching logic and electrical ratings align

If the vacuum is sufficient but the SPNO contact remains open

Larger bodies typically require the VG7000-1005 or equivalent for their specific stroke length

ensuring seamless integration with existing ignition modules and pilot assemblies

For technicians servicing the CHGD series or executing a demand defrost upgrade

McDonnell & Miller 250-3/4-50 Valve Els PW 17895 as long as the DPSTThe McDonnell & Miller 250 3 4 50 (Part Number 181525) is a high capacity pressure relief valve engineered specifically for technical boiler applications and hydronic heating systems. Field proven to handle a 1,160,000 BTU capacity, this 3 4" NPT valve is set at a precise 50 PSI to prevent over pressure conditions in demanding mechanical environments. Built with a heavy duty bronze body and seat, it utilizes an EPDM rubber diaphragm and seat disc to