Application 2561 Vav Cooling Or Heating; Overview - Siemens BACNET 125-5037 Owner's Manual

Applications

Application 2561 VAV Cooling or Heating

Overview

In Application 2561, the controller modulates the supply air damper of the terminal box for
cooling and heating. In order for it to work properly, the central air-handling unit must provide
cool supply air in cooling mode and warm air in heating mode. See Figure 6.
3 to 5 Straight Duct Diameters
required for proper sensor reading
Supply Air
10
Supply Air
Damper
Air
Velocity
Sensor
Spare DO or
Autozero Module (Opt.)
"COMMON" Termination for all DOs
Hi/Lo Tubing
Connections
Figure 6. Application 2561 Control Drawing.
Modulating
Damper
Actuator
Spare DOs
RTS
FLN
BACnet Actuator
Controller
Siemens Building Technologies, Inc.
SAFETIES
BY
OTHERS
Wall Switch (Opt.)
N O