Johnson Controls T-4100-2 Thermostat 30067439-890 This activated core features a

This activated core features a 48 cubic inch desiccant volume and a 64 square inch filter area

It is rigorously tested for compatibility with Weil McLain boiler models including the AHE

reducing fuel consumption and operational costs

Rapid Installation: Pre-wired 36-inch cable and DIN plug reduce labor time on the job site

What media can this switch measure

Johnson Controls T-4100-2 Thermostat 30067439-890 This activated core features aThe Johnson Controls T 4100 2 is a professional grade pneumatic thermostat designed for precision control in low volume output applications. This reverse acting pneumatic controller utilizes a force balance mechanism to modulate branch pressure in response to temperature fluctuations, ensuring stable HVAC performance. Engineered for vertical mount installations, the T 4100 2 features a 55 to 85 degree Fahrenheit dial range and is optimized for systems