White-Rodgers 1145-33 Control 30067439-890 Enhanced Flame Sensing: Utilizes a

Enhanced Flame Sensing: Utilizes a Lo-Mass thermocouple for faster cooling and quicker millivolt drop-out signals

and Protech models

preventing delayed ignition or "hard" starts that can compromise heat exchanger integrity

Integrated Feedback: Built-in SPDT auxiliary switch allows for easy interlocking with fans or secondary HVAC equipment

the VS3427 offers a versatile mixing or diverting configuration that ensures dependable fluid regulation in fan coils

White-Rodgers 1145-33 Control 30067439-890 Enhanced Flame Sensing: Utilizes aThe White Rodgers 1145 33 is a high performance direct immersion hydronic control designed for rapid temperature sensing in boiler and hot water systems. This SPST aquastat features a liquid filled 11 3 16" fast response bulb that sits directly in the water stream, virtually eliminating thermal lag for precise cycling. As a veteran grade high limit control, it operates on a temperature rise to open logic within a 100F to 240F range. The unit includes