McDonnell & Miller 157-1 Replacement Casting Refrigerant Frosting on the expansion valve

Frosting on the expansion valve body or the evaporator inlet is also a common diagnostic indicator of a restricted orifice or lost power element charge

Complete Assembly: Includes the essential mounting bushing and rubber connector boot for a secure installation

and air handler applications

this specific model is designed for a 120V AC supply

McDonnell & Miller 157-1 Replacement Casting Refrigerant Frosting on the expansion valveThe McDonnell & Miller 157 1 Replacement Casting is a mission critical component for maintaining the structural integrity of Series 157 low water cut offs. As a heavy duty boiler water column casting, this unit serves as the primary float chamber for combination LWCO and pump controllers in high pressure steam applications. For technicians managing industrial or commercial systems, utilizing an authentic 157 1 body casting ensures precise alignment