Description
The Maxitrol TD121 is a precision discharge‑air temperature selector designed to regulate airflow temperatures in HVAC and ventilation systems. With a control range from 55 °F to 90 °F, this selector helps maintain comfortable and safe discharge conditions in make‑up air units, duct systems, and indirect‑fired heating equipment.
Features:
- Temperature Range (F): 55°F to 90°F
- Used With: Series 21
