Description
The Honeywell TR24 is a versatile, direct‑wired wall module that delivers accurate room temperature sensing with user conveniences like an override button and LONWorks bus network connectivity. Built with a 20 kΩ NTC non‑linear thermistor, this sensor module is ideal for commercial buildings, HVAC control panels, and automation systems (e.g. Honeywell Excel, Spyder, or ComfortPoint controllers). Although discontinued, the TR24 remains a reliable component for legacy systems where precision and flexible control are essential.
Features:
- Models With Setpoint Adjustment
- Models With Occupied/Unoccupied Override (Bypass) with LED
- Models With 3-Position (Auto/0/1) or 5-Position (Auto/0/1/2/3 Speed) Fan Switch
- LONWORKS Bus Jack on All Models Except the TR21 and TR21-A Models
- Operating Range 45°F to 99°F (7°C to 37°C)
- Models (TR22 and TR23) With User-Selectable Temperature Setpoint Dials in Fahrenheit, Celsius, and Relative (- to +)
- Modular Jack, Override











