Utica-Dunkirk S47 Limit Switch Refrigerant This Apollo 59 Series component

This Apollo 59 Series component is a reliable choice for maintaining system fluid purity in water

While the spring range is 5-10 psi

By measuring pressure in inches of water column (W

and high-velocity ductwork

and provides effective pressure modulation without interference from water pressure

Utica-Dunkirk S47 Limit Switch Refrigerant This Apollo 59 Series componentWhen you're out in the field and a homeowners boiler is cycling on high limit or failing to fire, the Utica Dunkirk S47 Limit Switch is the OEM replacement part you need to restore safe, reliable operation. This high limit safety control is a critical safeguard in hydronic systems, engineered to interrupt the burner circuit if water temperatures exceed safe operating parameters. As a precision calibrated HVAC safety switch, it features a 200F open