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Photo/CO (C Sup)supervisory

Notifier NFS-320: Photo/CO (C Sup)

Notifier NFS-320·1 view·0 field notes

What This Code Means

Indicates activation of the CO element of a detector, which triggers the SUPERVISORY LED.

Common Causes

  • 1Carbon monoxide detection
  • 2CO element activation

Resolution Steps

Investigate the area for carbon monoxide and reset the panel.

Manual References(2)

Field Notes

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Related Codes

DIRTY 1The detector is dirty and needs cleaning.TERMINAL SUPERVISORYThere is a communication error with the CRT-2 terminal.Photo/COIndicates activation of the Photo, Heat, or CO element of a detector.Low Chamber valueThe detector chamber value has dropped below the allowed limit.CO TBLThe CO element on the detector is not working properly.

Related Questions

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All NFS-320 trouble codesNFS-320 panel page