McDonnell & Miller 150S-M-HD Controller Els PW 17895 this 40VA transformer is the

this 40VA transformer is the standard replacement for most older Reznor gas-fired units requiring a 120V primary

preventing furnace short cycling or total system lockout caused by heat exchanger overheating

manifold pressure required for stable combustion in Utica-Dunkirk boiler and furnace applications

this burner tube manages high-BTU loads while minimizing carbon buildup

Technicians should check for a clogged furnace air filter

McDonnell & Miller 150S-M-HD Controller Els PW 17895 this 40VA transformer is theThe McDonnell & Miller 150S M HD Controller (Part Number 173203) is a heavy duty, replacement head mechanism designed for industrial and commercial steam boiler applications. This combination low water cut off and pump controller features a snap acting manual reset switch, providing essential safety redundancy by preventing the burner from firing if a low water condition occurs. Engineered for durability, the unit utilizes a corrosion resistant Monel