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Photo/COalarm

Notifier NFS-320: Photo/CO

Notifier NFS-320·1 view·0 field notes

What This Code Means

Indicates activation of the Photo, Heat, or CO element of a detector.

Common Causes

  • 1Smoke detection
  • 2Heat detection
  • 3Carbon monoxide detection

Resolution Steps

Investigate the area for fire or CO conditions and reset the panel.

Manual References(2)

Field Notes

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Related Codes

TERMINAL SUPERVISORYThere is a communication error with the CRT-2 terminal.CO TBLThe CO element on the detector is not working properly.Low Chamber valueThe detector chamber value has dropped below the allowed limit.DIRTY 1The detector is dirty and needs cleaning.STYLE 6 SHORT LOOP xThere is a short circuit on SLC loop x configured for Style 6 or 7.

Related Questions

How does the NFW2-100 ground fault detection work?What battery size does the NFW2-100 require, and how do I silence a battery trouble condition after replacement?What batteries does the NFS-320 use, and when is an external battery box required?
All NFS-320 trouble codesNFS-320 panel page