FloAire DDC - Manual (Page 16)

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BV: 16: Room Override Status. This is the status of the room override space heating function. .
Room Override will be On if the unit is operating in space heating mode.
Properties
- Fixed readout. Status only.
- Network Reference: room_override
- Modbus Register: 10008
- N2 Register: 8
- Lonworks ID: nvoRoomOver
- This occurs when BV:17 is set to “On” or “Space” and the space temperature (AV:20)
falls below the space heating setpoint (AV:21 minus AV:22). Used as a space heating
function.
BV: 17: Heating Temperature Control. This can either be set to “OFF” (Discharge heating
temperature control) or “ON” (Space heating temperature control)
Properties
- On/Off Switch
- Network Reference: eat_control
- Modbus Register: 7
- N2 Register: 7
- Lonworks ID: nviHeatControl
NETWORK ALARM VARIABLES
The DDC controller provides a set of alarms for various status notifications. These alarms are listed
below. The on-site DDC Controls Contractor should link the alarm values accordingly as required to
operate the facility in accordance with specifications.
BV: 31 AF_FAIL: Airflow Failure.
- Network Reference: af_fail
- Modbus Register: 10013
- N2 Register: 13
- Lonworks ID: nvoAfFailAlm
- Activates if BV: 2, occupancy status, is in occupied mode for longer than 5:00 minutes, and
airflow has not yet been established.
BV: 32 CLG_FLTR: Filter Change Required.
- Network Reference: clg_fltr
- Modbus Register: 10014
- N2 Register: 14
- Lonworks ID: nvoFltClgAlm
- Activates if BV:13, the Clogged Filter Status, is Off for 10:00 minutes, and BV: 2 indicates
that the unit is in the occupied state.
BV: 33 CLG_RNTM: Cooling Runtime Expired.
- Network Reference: clg_rntm
- Modbus Register: 10015
- N2 Register: 15
- Lonworks ID: nvoFltClgRntmAlm
- Activates if BV: 9 or BV:11 have been in the On state for 10000 hours.
BV: 34 CSAT_HI: High Cooling Supply Air Temperature.
- Network Reference: csat_hi
- Modbus Register: 10016
- N2 Register: 16
- Lonworks ID: nvoCoolSATHiAlm