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this unit is rated specifically for 120V applications and should not be used in higher voltage circuits
including large-tonnage water-cooled chillers like the RTWA series
Using a mechanical sensing bulb and capillary tube
The parallel flow pattern with 3/4" FNPT connections allows for simplified maintenance without disturbing the main piping
The 669566R is the updated manufacturer suffix for the original part number
Utica-Dunkirk FE3980C070 Pressure Switch 326058-757 this unit is rated specificallyThe Utica Dunkirk FE3980C070 Pressure Switch is an essential OEM safety component designed for high performance hydronic systems, including the CCB150 and CHB series boilers. As a veteran grade boiler water pressure switch, this part is engineered to monitor system pressure and prevent the burner from firing under unsafe low water or low pressure conditions. Built with ECR International sensors and featuring a 1 2" NPT connection, it ensures a secure,
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