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Key Benefits Precise Thermal Regulation: Maintains safe operating parameters with a fixed 210°F cutout and a 170°F automatic reset
As a direct-acting valve
A: A NEMA 4 enclosure protects the coil against water
Always verify the common side of the line matches the original configuration to avoid damaging the switch internal contacts
Utica-Dunkirk 550001339 Transformer R-134A Key Benefits Precise Thermal Regulation:The Utica Dunkirk 550001339 Transformer is a critical OEM replacement part designed for high efficiency hydronic systems, specifically engineered for the UB90 100 Series II and Q90 Series II boilers. This heavy duty 40VA step down transformer converts 120V primary line voltage to 24V secondary output, providing stable power to integrated control boards, gas valves, and secondary HVAC circuits. Built to withstand the thermal demands of residential and
