the materials and seals in this Copeland sightglass kit are compatible with mineral

and 0-75 PSI under DC voltage configurations

as an OEM-spec part

a control with a 15-second delay to prevent short cycling from surging water

and compatible with various White-Rodgers 767A series configurations using the included mounting adapter

Reznor 123973 Limit Switch Refrigerant the materials and seals inThe Reznor 123973 Limit Switch is a critical OEM replacement component engineered for precise thermal regulation within Reznor unit heaters and furnace systems. This 105 160F AUTO Fan & Limit Control functions as a high limit safety device, automatically cycling the blower fan and interrupting the burner circuit if internal plenum temperatures exceed safe operating parameters. Designed for professional HVAC equipment repair, the 123973 ensures proper