Professional contractors prioritize these limit reset switches for their tight tolerances and compatibility with integrated furnace controllers

Enhanced Control: Features an integrated three-speed fan selector for improved airflow management and occupant comfort

the blower will run continuously but the burner will not fire

000 Ohm resistance at 77°F

which is essential for preventing nuisance boiler lockouts

Automation Components Inc (ACI) A/ENT Controller 321142-301 Professional contractors prioritize these limitThe Automation Components Inc (ACI) A ENT is a high precision enthalpy controller engineered to optimize HVAC efficiency by monitoring ambient temperature and humidity. Primarily designed for economizer control and original equipment manufacturers (OEMs), this unit effectively converts capacitive humidity sensor data into a linear 2 wire, 4 to 20 mA output. With a measurement scale spanning 0 to 50 BTUs, the device provides critical input for systems