FloAire DDC - Manual (Page 13)

13
LIST OF BINARY VARIABLES (BV):
BV: 1: BV Unit Enable (BAS). This is the Unoccupied/Occupied switch used for BAS control of
unit run condition. NOTE: AV:1 must be set to 2 for BV:1 to function.
Properties
- On/Off Switch.
- BACnet Reference: enable_bas
- Modbus Register: 3
- N2 Register: 3
- Lonworks ID: nviEnableBMS
BV: 2: Occupancy Status. This is the Unoccupied/Occupied confirmation BV, used to confirm the
occupied/unoccupied state of the unit. Can be activated by numerous sources, as outlined in
section AV:1.
Properties
- Fixed readout. Status only.
- BACnet Reference: occ_status
- Modbus Register: 10005
- N2 Register: 5
- Lonworks ID: nvoOccStatus
BV: 3: Supply Fan Command. This is the command controlling the Supply Fan Output. Used to
confirm if the unit is calling for Supply Fan Activation.
Properties
- Fixed readout. Status only.
- BACnet Reference: sf_cmd
- Modbus Register: 10011
- N2 Register: 11
- Lonworks ID: nvoSupFanCmd
BV: 4: Supply Fan Status. This is the status of the Supply Fan. This will only show an On State
when sufficient airflow is induced to activate the internal airflow proving switches, or when an
internal network airflow proving input has been activated.
Properties
- Fixed readout. Status only.
- Network Reference: sf_status
- Modbus Register: 10012
- N2 Register: 12
- Lonworks ID: nvoSupFanStatus
BV: 5: Airflow Proving Status. This is the status of the internal airflow proving switches. This will
only show an On State when unit airflow is between the high and low limits, which are preset and
non-adjustable.
Properties
- Fixed readout. Status only.
- Network Reference: af_sts
- Modbus Register: 10002
- N2 Register: 2
- Lonworks ID: nvoAirFlowProv