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MultiSITE MS8250 V
AV Room Controllers
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BALANCING
Configuration Parameter
BACnet
Function Description
Airflow Level
Read Only
AV110 (R)
Measured (calibrated) airflow:
Range: 0 to 20000 CFM (0 to 9440 l/s).
Airflow Setpoint
Read Only
AI350 (R)
Current active airflow setpoint.
Airflow Setpoint is not displayed when Damper Override is Open or Closed.
Range: 0 to 10000 CFM (0 to 4720 l/s).
Damp. Override (Damper Override))
Default Value: None
MV172 (R/W)
Force damper to selected position during balancing.
0 - None: No damper override. Damper under normal control.
1 - Minimum: Force damper to maintain minimum airflow setpoint.
2 - Max. cool: Force damper to maintain maximum cooling airflow setpoint.
3 - Close: Force damper closed.
4 - Reheat: Force damper to maintain maximum reheat airflow setpoint.
5 - Open: Force damper fully open.
Choices: None, Minimum, Max. cool, Close, Reheat and Open.
Balometer (Measured Airflow From
Balometer)
Default Value: 0 CFM (0 l/s)
N/A
Measured value will be used to update calibration Offset and ensure mea-
sured Airflow level matches Balometer reading.
Balometer is displayed when Damper Override is Minimum or Max. cool.
Range: 0 to 20000 CFM (0 to 9440 l/s)
Minflow Offset (Minimum Airflow
Calibration Offset)
Default Value: 0 CFM (0 l/s)
AV258
Calibration offset applied to Airflow Level at Minimum flow.
Min flow offset is displayed when Damper Override is Minimum.
Range: -5000 to 5000 CFM (0 to 30932 l/s).
Max Flow Offset (Maximum Airflow
Calibration Offset)
Default Value: 0 CFM (0 l/s)
AV259
Calibration offset applied to Airflow Level at Maximum flow.
Max flow offset is displayed when Damper Override is Max. cool.
Range: -5000 to 5000 CFM (0 to 30932 l/s).
Figure 33: Balancing PI 2 / 2 Display.
Table 26: Pressure Independent Balancing Options Screen 2 of 2.
Airflow level
2/2 Balancing
0 CFM
0 CFM
Balometer
Minimum
Damp. override
0 CFM
Min flow offset
0 CFM
Airflow setpoint
0 CFM
Max flow offset
Pressure Independent, continued.
Pressure Independent