Fan Coil Unit (FCU).
Used to control the room temperature by controlling one heat and one cool actuator output, or a single actuator for heat and cool, and a fan with multiple fan-speed stages.
|
| |
Network Variables | Configuration Properties |
nviSetPoint
nviSpaceTemp
nvoCoolOutput
nvoFanSpeed
nvoHeatOutput
nviApplicMode
nviDischAirTemp
nviEnergyHoldOff
nviFanSpeedCmd
nviOccCmd
nviSetPtOffset
nviWaterTemp
nvoDischAirTemp
nvoEffectSetPt
nvoEnergyHoldOff
nvoLoadAbs
nvoOccCmd
nvoReheat
nvoSpaceTemp
nvoTerminalLoad
nvoUnitStatus
| nciSetPnts
nciSndHrtBt
nciLocation
nciMinOutTm
nciNumValve
nciRcvHrtBt
|
| |
Details: |
| Resource Set:
| Standard 00:00:00:00:00:00:00:00-0 |
| Index:
| 36 |
| Obsolete:
| no |
| Key:
| 8020 |
|
Inheriting:
| no |
Mandatory Network Variables |
| nviSpaceTemp | Space temperature input.: Optional input from a sensor node if the fan coil unit controller node itself provides a locally-wired space temperature sensor.
|
| Member Number:
| 1 | |
Base type:
| | | Direction:
| input | | Service:
| any | | Minimum:
| -10,00 | | Maximum:
| 50,00 |
|
| nviSetPoint | Temperature setpoint input.: Allows the temperature setpoint for the occupied and standby mode to be changed via the network.
|
| Member Number:
| 2 | |
Base type:
| | | Direction:
| input | | Service:
| any | | Minimum:
| 10,00 | | Maximum:
| 35,00 |
|
| nvoHeatOutput | Heat control output.: Current position of the heat actuator; can be used as part of a control loop and for monitoring purposes.
|
| Member Number:
| 3 | |
Base type:
| | | Direction:
| output | | Service:
| unacknowledged | | Minimum:
| 0,000 | | Maximum:
| 100,000 |
|
| nvoCoolOutput | Cool control output.: Current position of the cool actuator; can be used as part of a control loop and for monitoring purposes.
|
| Member Number:
| 4 | |
Base type:
| | | Direction:
| output | | Service:
| unacknowledged | | Minimum:
| 0,000 | | Maximum:
| 100,000 |
|
| nvoFanSpeed | Fan speed output.: Current fan speed of a multi-speed (n-speed) fan; can be used as part of a control loop and for monitoring purposes.
|
| Member Number:
| 5 | |
Base type:
| | | Direction:
| output | | Service:
| unacknowledged |
|
Optional Network Variables |
| nviFanSpeedCmd | Fan speed command.: Used to connect an external fan speed switch to the node.
|
| Member Number:
| 6 | |
Base type:
| | | Direction:
| input | | Service:
| any |
|
| nviOccCmd | Occupancy input.: Commands the fan coil unit controller object into different occupancy modes.
|
| Member Number:
| 7 | |
Base type:
| | | Direction:
| input | | Service:
| any |
|
| nviApplicMode | Application mode input.: Coordinates this object with any supervisory controller providing the supply energy.
|
| Member Number:
| 8 | |
Base type:
| | | Direction:
| input | | Service:
| any |
|
| nviSetPtOffset | Setpoint offset input.: This setpoint shifting operates only on occupied and standby setpoints. It does not affect the unoccupied setpoint.
|
| Member Number:
| 9 | |
Base type:
| | | Direction:
| input | | Service:
| any | | Minimum:
| -10,00 | | Maximum:
| 10,00 |
|
| nviWaterTemp | Water temperature input.: Automatic heat/cool switchover dependent on the supply temperature.
|
| Member Number:
| 10 | |
Base type:
| | | Direction:
| input | | Service:
| any | | Minimum:
| -10,00 | | Maximum:
| 90,00 |
|
| nvoTerminalLoad | Terminal load output.: Present heat/cool energy demand of the FCU controller.
|
| Member Number:
| 11 | |
Base type:
| | | Direction:
| output | | Service:
| unacknowledged |
|
| nvoLoadAbs | Absolute power consumption output.: Present heat/cool power consumption of the FCU controller.
|
| Member Number:
| 12 | |
Base type:
| | | Direction:
| output | | Service:
| unacknowledged |
|
| nvoDischAirTemp | Discharge air temperature output.: Temperature of the air that leaves the fan coil.
|
| Member Number:
| 13 | |
Base type:
| | | Direction:
| output | | Service:
| unacknowledged | | Minimum:
| -10,00 | | Maximum:
| 50,00 |
|
| nvoReheat | Reheat output.: Present state of an multi-stage (n-stage) reheat output.
|
| Member Number:
| 14 | |
Base type:
| | | Direction:
| output | | Service:
| unacknowledged |
|
| nvoSpaceTemp | Space temperature output.: Space temperature, if this temperature is locally measured.
|
| Member Number:
| 15 | |
Base type:
| | | Direction:
| output | | Service:
| unacknowledged | | Minimum:
| -10,00 | | Maximum:
| 50,00 |
|
| nvoEffectSetPt | Effective setpoint output.: May depend on nciSetPnts, nviOccCmd, nviSetPoint, nviSetPtOffset, any local setpoint means.
|
| Member Number:
| 16 | |
Base type:
| | | Direction:
| output | | Service:
| unacknowledged | | Minimum:
| 10,00 | | Maximum:
| 35,00 |
|
| nviDischAirTemp | Discharge air temperature input.: The network value takes precedence over the physical value if both are available.
|
| Member Number:
| 17 | |
Base type:
| | | Direction:
| input | | Service:
| any | | Minimum:
| -10,00 | | Maximum:
| 50,00 |
|
| nviEnergyHoldOff | Energy hold-off input.: Input from a device such as a window contact sensor.
|
| Member Number:
| 18 | |
Base type:
| | | Direction:
| input | | Service:
| any |
|
| nvoOccCmd | Occupancy output.: May derive from an occupancy sensor or any other means affecting the occupancy mode.
|
| Member Number:
| 19 | |
Base type:
| | | Direction:
| output | | Service:
| unacknowledged |
|
| nvoEnergyHoldOff | Energy hold-off output.: Provides other devices the state of an EnergyHoldOff device that is hardwired to the controller.
|
| Member Number:
| 20 | |
Base type:
| | | Direction:
| output | | Service:
| unacknowledged |
|
| nvoUnitStatus | Unit status output.: Combines operating mode, capacity of heating/cooling used, and an indication if any alarms are present in the object.
|
| Member Number:
| 21 | |
Base type:
| | | Direction:
| output | | Service:
| unacknowledged |
|
Mandatory Configuration Properties |
| nciSndHrtBt | Maximum send time.: The maximum period of time between consecutive transmissions of the current value.
|
| Member Number:
| 1 | |
Base type:
| | |
Applies to
| SFPTfanCoilUnit | | Array:
| not permitted | | Default:
| 0,0 |
|
| nciSetPnts | Occupancy temperature setpoints.: The occupancy temperature setpoints for heat and cool mode.
|
| Member Number:
| 2 | |
Base type:
| | |
Applies to
| SFPTfanCoilUnit | | Array:
| not permitted | | Minimum:
| 10,00,10,00,10,00,10,00,10,00,10,00 | | Maximum:
| 35,00,35,00,35,00,35,00,35,00,35,00 | | Default:
| 23,00,25,00,28,00,21,00,19,00,16,00 |
|
Optional Configuration Properties |
| nciRcvHrtBt | Maximum receive time.:
The maximum period of time that may expire with no updates on the associated input network variables before the object goes into heartbeat failure mode. A zero value disables the mechanism.
|
| Member Number:
| 3 | |
Base type:
| | |
Applies to
| SFPTfanCoilUnit | | Array:
| not permitted | | Default:
| 0,0 |
|
| nciMinOutTm | Minimum send time.: The minimum period of time between consecutive transmissions of the current value.
|
| Member Number:
| 4 | |
Base type:
| | |
Applies to
| SFPTfanCoilUnit | | Array:
| not permitted | | Default:
| 0,0 |
|
| nciLocation | Location: Provides descriptive physical location information related to the object.
|
|
| nciNumValve | Number of output valves.: The value 1 implies one output valve (two pipe system) and the value 2 implies two output valves (four pipe system).
|
| Member Number:
| 6 | |
Base type:
| | |
Applies to
| SFPTfanCoilUnit | | Array:
| not permitted | | Minimum:
| 1 | | Maximum:
| 2 | | Default:
| 2 |
|
