Utica-Dunkirk S47 Limit Switch Refrigerant and provides effective pressure modulation

and provides effective pressure modulation without interference from water pressure

While the spring range is 5-10 psi

and high-velocity ductwork

this SKU is for the motor lead end only

By measuring pressure in inches of water column (W

Utica-Dunkirk S47 Limit Switch Refrigerant and provides effective pressure modulationWhen 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