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Dual-Voltage Compatibility: The 208/230V configuration offers installation flexibility for various commercial electrical infrastructures
Key Benefits Precise Thermal Regulation: Maintains safe operating parameters with a fixed 210°F cutout and a 170°F automatic reset
The clockwise (CW) lead end rotation ensures exact compatibility with York and Johnson Controls draft inducer assemblies
Built with vibration-dampening insulation to prevent wire chafing in high-cycle environments
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 Dual-Voltage Compatibility: The 208/230V configurationThe 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
