Utica-Dunkirk 40154B008 Limit Switch 321142-301 Precise Calibration: Features MICRO-SET differential

Precise Calibration: Features MICRO-SET differential adjustments for fine-tuning low-pressure cut-in and cut-out points

Advanced Security Logic: 3-level PIN-protected keypad lockout ensures system setpoints remain consistent in public or commercial spaces

Environmental Resilience: Features a robust

This interchangeable cage assembly is compatible with multiple refrigerants

Engineered with EPR (Ethylene Propylene) seal material

Utica-Dunkirk 40154B008 Limit Switch 321142-301 Precise Calibration: Features MICRO-SET differentialThe Utica Dunkirk 40154B008 Limit Switch is a critical high limit safety control designed for specific residential and commercial hydronic heating systems. Rated for an operating range of 170 200F, this automatic reset limit switch monitors heat exchanger temperatures to prevent thermal runaway and equipment damage. As a genuine OEM Utica boiler replacement part, it ensures precise calibration within the aquastat control circuit, maintaining system