Lead-free brass construction for potable water and hydronic heating systems

Common Questions Do I need to prime the siphon before installation

Direct Replacement: Simplifies the conversion process for field technicians and HVAC contractors

The first stage utilizes two stainless steel orifice tubes to achieve 10-micron mechanical separation

while it is maximum rated for 230VAC

Armstrong Furnace R46257-001 Defrost Board Els PW 17895 Lead-free brass construction for potableThe Armstrong Furnace R46257 001 Defrost Board is a critical replacement control module engineered for heat pump systems requiring precise defrost cycle termination and initiation. This OEM control board manages the reversing valve and outdoor fan motor operations during low ambient conditions to prevent evaporator icing and maintain system COPs. Designed for seamless integration with Armstrong and Air Ease heat pumps, the R46257 001 features