Application

Overview
Hardware Inputs
4
Siemens Industry, Inc. Application Note, App 2521 140-1218
2015-05-06
Overview
In Application 2521, the controller modulates the supply air damper of the terminal box
for cooling or heating. In order for it to work properly, the central air-handling unit must
provide cool supply air in cooling mode and warm air during heating mode.
Application 2521 VAV Cooling and Heating Control Diagram.