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| Table 23. Status Points. (Continued) |
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| Value | Digital |
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| Direct | Hardware | Manual |
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| User Address | NvName | Field Name | (Metric) or States plus Range | ofState | Stateor | Default | (M, P,S) | Share | Map | Access | Config. | Config. | Test | Comments |
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| Engineering Units: English |
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| StatusIaqOvr | nvoData1 | IaqOverRide | FALSE | 0 |
| FALSE |
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| X |
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| IaqOverRide: When an economizer is configured, IaqOverRide indicates |
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| (nvoCtlDataG1) |
| TRUE | 1 |
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| the current state of the indoor air quality, an is used by the control process |
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| to open the economizer damper to let in more outside air. 1 means poor |
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| indoor air quality, and 0 means indoor air quality is OK. When IaqOverRide |
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| is 1, the IAQ_OVERRIDE alarm is initiated. IaqOverRide indicates poor air |
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| quality if the analog sensor OR a digital sensor (local or via network) shows |
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| poor air quality. Specifically, if nvoData2.siSpaceCo2S0 is not SI_INVALID, |
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| and exceeds nciAux1SetPt.siCO2IaqLimitS0, then poor air quality is |
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| detected. Also if nviIaqOvr.state is SW_ON, then poor air quality is |
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| detected. Or if a local digital input is configured as IAQ_OVERRIDE_IN and |
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| nvoIO.IaqOverRide is 1 then poor air quality is also detected. When poor air |
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| quality is detected, the economizer minimum position is set to |
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| nciAux1SetPts.ubEconIaqPosS0, instead of |
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| nciAux1SetPts.ubEconMinPosS0.When an economizer is not configured, |
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| IaqOverRide is 0. |
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| StatusSmoke | nvoData1 | SmokeMonitor | FALSE | 0 |
| FALSE |
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| SmokeMonitor: SmokeMonitor indicates the current state of the |
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| (nvoCtlDataG1) |
| TRUE | 1 |
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| SmokeMonitor input used by the control process and is read from another |
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| node via nviEmerg or the local sensor via nvoIO.SmokeMonitor. If either |
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| nviEmerg is not EMERG_NORMAL or nvoIO.SmokeMonitor is 1, then |
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| SmokeMonitor is 1 meaning that smoke is detected. Otherwise | |
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| SmokeMonitor is 0, meaning smoke is not detected. When smoke monitor |
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| is 1, the algorithm controls as per the settings found in |
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| nciConfig.SmokeControl. |
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| StatusWndw | nvoData1 | WindowOpen | FALSE | 0 |
| FALSE |
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| WindowOpen: WindowOpen indicates the current state of the window |
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| (nvoCtlDataG1) |
| TRUE | 1 |
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| sensors and is calculated from nviWindow state and the local occupancy |
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| sensor via nvoIO.WindowOpen. The local sensor and nviWindow are ORed |
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| together. If either the local sensor or nviWindow shows that the window is |
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| open (nvoIO.WindowOpen = 1 or nviWindow.state = SW_ON), then |
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| WindowOpen shows that the window is open. 1 means that the window is |
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| open and 0 means that the window is closed. When the window is open, the |
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| controller mode is switched to FREEZE_PROTECT. |
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| StatusFilter | nvoData1 | DirtyFilter | FALSE | 0 |
| FALSE |
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| X |
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| DirtyFilter: DirtyFilter indicates the state of the air filter via the |
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| (nvoCtlDataG1) |
| TRUE | 1 |
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| nvoIO.DirtyFilter digital input or the nvoData1.siFilterPressureS10 analog |
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| input. If nvoData1.siFilterPressureS10 exceeds |
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| nciAux2SetPt.ubFilterPressStPtS5, a dirty filter is indicated. DirtyFilter is set |
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| to 1 when a dirty filter has been detected by either method for one minute. |
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| DirtyFilter is set to 0 when a dirty filter has not been detected by either |
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| method for one minute. When DirtyFilter is 1, a DIRTY_FILTER alarm is |
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| generated. |
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| ShutDown | nvoData1 | ShutDown | FALSE | 0 |
| FALSE |
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| ShutDown: ShutDown indicates the state of the ShutDown input via |
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| (nvoCtlDataG1) |
| TRUE | 1 |
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| nvoIO.ShutDown. 1 means a ShutDown is being commanded and 0 means |
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| normal operation. |
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| StatFreezeStat | nvoData1 | CoilFreezeStat | FALSE | 0 |
| FALSE | M |
| X | X |
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| StatFreezeStat: StatFreezeStat gives the state of the cooling coil controlled |
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| (nvoCtlDataG1) |
| TRUE | 1 |
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| by the CVAHU. False (0) it is not freezing or True (1) it is freezing. |
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| NOTE: Only use this User Address when using |
74 |
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MonitorSw | nvoData1 | MonSwitch | FALSE | 0 |
| FALSE |
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| X |
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| MonSwitch: MonSwitch is the state of the digital input wired to a general | |
- |
| (nvoCtlDataG1) |
| TRUE | 1 |
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| purpose monitor switch via nvoIO.MonSwitch. 1 means that the switch is |
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| closed and 0 means that the switch is open. | |
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EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER