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Application 2563 Vav With Hot Water Reheat; Overview - Siemens BACNET 125-5037 Owner's Manual

Building technologies bacnet vav actuator.
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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.
3 to 5 Straight Duct Diameters
required for proper sensor reading
Supply Air
Siemens Building Technologies, Inc.
Supply Air
Damper
Air
Velocity
Sensor
Valve
Actuator
Hi/Lo Tubing
Connections
Figure 9. Application 2563 Control Drawing (HW Heat and Spare DO).
Siemens BACnet VAV Actuator Owner's Manual
Spare DO or
Autozero Module (Opt.)
Spare DO
"COMMON" Termination for all DOs
RTS
FLN
SAFETIES
BY
OTHERS
Modulating
Damper
Actuator
Wall Switch (Opt.)
NO
BACnet Actuator
Controller
13

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