Application

Overview
BACnet
4
Siemens Industry, Inc.
Application Note, App 6663
140-1109
2014-10-27
Overview
NOTE:
For information on applications with Firmware Revision B
x 40 or earlier, see InfoLink
and/or Asset Portal for documentation.
In Application 6663, the controller provides a constant volume of air to the room during
occupied periods, and a lower constant volume of air to the room during unoccupied
periods. Reheat is provided by modulating a hot water valve. In order for the
application to work properly, the central air handling unit must provide pre-conditioned
air to the terminal box.
Application 6663 Control Diagram.