The control systems for both air make-up units are located on the east wall of the operating floor and are labeled TIC 200 and TIC 210. They should both be set at between 18 and 21degrees centigrade.

The face and by-pass dampers modulate to maintain these control set points.

These controllers are the only instruments that should be adjusted. In the past the recirculation air thermostat has been turned up resulting in high energy costs and humidity problems.