Siemens BACNET 125-5037 - Manual (Page 23)

Siemens BACnet VAV Actuator Owner’s Manual
Siemens Building Technologies, Inc. 13
Application 2563 VAV with Hot Water Reheat
Overview
In Application 2563, the controller modulates the supply air damper of the terminal box for
cooling and modulates a reheat valve (or valves) for heating. When in heating, the terminal
box either maintains minimum airflow or modulates the supply air damper. In order for the
terminal box to work properly, the central air handling unit must provide supply air. See
Figure 9 and Figure 10.
BACnet Actuator
Controller
Modulating
Damper
Actuator
TEC2563ACDR1
Air
Velocity
Sensor
Supply Air
Damper
SAFETIES
BY
OTHERS
3 4 5 6
C
Wall Switch (Opt.)
Spare DO or
Autozero Module (Opt.)
"COMMON" Termination for all DOs
10K ohm Thermistor
or Spare DI
Hi/Lo Tubing
Connections
RTS
FLN
NO
Valve
Actuator Spare DO
Supply Air
3 to 5 Straight Duct Diameters
required for proper sensor reading
Figure 9. Application 2563 Control Drawing (HW Heat and Spare DO).