Utica-Dunkirk 27739 Relay 326010-701 This board is typically found

This board is typically found in mid-to-high efficiency gas furnaces under the Carrier

or industrial applications with a maximum boiler pressure of 50 psi

Superior Materials: Features a high-grade stainless steel combustion chamber for maximum resistance to heat and corrosion

With a dial range of 45°F to 81°F and a fixed 5°F differential

Utica-Dunkirk 27739 Relay 326010-701 This board is typically foundThe Utica Dunkirk 27739 Relay is a heavy duty, single pole single throw (SPST) switching component engineered for precision control in residential and commercial boiler systems. Designed as a direct replacement part for ECR International equipment, including various DXL Series II cast iron gas fired boilers, this SPST switching relay ensures high reliability interfacing between low voltage thermostats and line voltage components like circulator pumps