AAF-Herman Nelson

Classroom Unit Ventilators

Thermosystems has the largest inventory ofAAF classroom unit ventilator parts in the country. We can help you with exact replacment:

*Motors * Couplings *Actuators *Shafts *Bearings *Wheels*Control boards *transformers * and Much More

We stock virtually every moving or electrical part for every AAF unit ventilator built since 1956.

We can test and program Microtech control boards, ECM motors, and BAS communication cards at our Elmhurst location.

We offer stocking programs for Schools.