FACP Manuals Logo
FACPManuals
Ask AI
Ask AI
FREEZE WARNINGtrouble

Notifier NFS2-640: FREEZE WARNING

Notifier NFS2-640·1 view·0 field notes

What This Code Means

The temperature read by a Heat+ or Acclimate Plus™ detector has dropped below the low-temperature threshold, typically 40°F (4.44°C).

Common Causes

  • 1Ambient temperature in the area of the detector is too low
  • 2Heating system failure in the protected area

Resolution Steps

Raise the heat in the area of the detector to bring the temperature above the 40°F (± 5°F) threshold.

Manual References(4)

Field Notes

Loading field notes...
Sign in to share a field note

Related Codes

TROUBLA status banner displayed on the LCD indicating that the control panel has detected an electrical fault or a functional issue with a system component or device.INVREPThe device has returned a response to the panel that the panel did not expect.STYLE 6 POS. LOOP xThere is an open circuit on the positive side of loop x.MASTER BOX NO ANSWERA TM-4 transmitter module connected to a municipal box is not responding to the control panel.INST ON L1No devices are installed on the system.

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 NFS2-640 trouble codesNFS2-640 panel page