Siemens BACNET 125-5037 User Manual
Page 33
Siemens BACnet VAV Actuator Owner’s Manual
Siemens Building Technologies, Inc.
23
Descriptor Address
1
Application Description
PARALLEL OFF
30
2566,
2567
When flow rises above this value, the parallel fan
will turn OFF.
CLG FLOW MIN
31
All except 2597
The minimum amount of air in CFM (LPS) to be
supplied to the space in cooling mode.
CLG FLOW MAX
32
All except 2597
The maximum amount of air in CFM (LPS) to be
supplied to the space in cooling mode.
HTG FLOW MIN
33
All except 2560,
2597
The minimum amount of air in CFM (LPS) to be
supplied to the space in heating mode.
HTG FLOW MAX
34
All except 2560,
2597
The maximum amount of air in CFM (LPS) to be
supplied to the space in heating mode.
AIR VOLUME
{
35}
2
All
Actual amount of air in CFM (LPS) currently
passing through the air velocity sensor.
FLOW COEFF
36
All
Calibration factor for the airflow sensor.
MTR3 COMD
{37}
2560, 2561, 2562,
2597
The value to which the Motor 3 actuator is
commanded in percent of full value.
VLV2 COMD
{37}
2563
The value to which the valve 2 actuator is
commanded in percent of full travel for applications
using a second water valve.
MTR3 POS
{38}
2560, 2561, 2562,
2597
The current position of the Motor 3 actuator in
percent of full travel. This value is calculated based
on motor run time.
VLV2 POS
{38}
2563
The current position of Valve 2 in percent of full
travel. This value is calculated based on valve run
time.
MTR3 TIMING
39
All except
2564, 2565, 2566,
2567
The time required for the Motor 3 actuator to travel
from the full closed position to the full open position.
DO 1
{41}
2
All
Digital output 1 controls a 24 Vac load with an ON
or OFF status. If Motor 1 is enabled, DO 1 is
coupled with DO 2 to control an actuator.
DO 2
{42}
All
Digital output 2 controls a 24 Vac load with an ON
or OFF status. If Motor 1 is enabled, DO 2 is
coupled with DO 1 to control an actuator.
DO 3
{43}
All except
2562, 2564, 2566
Digital output 3 controls a 24 Vac load with an ON
or OFF status. If Motor 2 is enabled, DO 3 is
coupled with DO 4 to control an actuator.
HEAT STAGE 1
{43}
2562, 2564, 2566
This point is DO 3 in applications with electric
reheat. This digital output controls the contact for
the first stage of heating and has a status of ON or
OFF.