WATERFLOW: NFW2-100 Trouble Code | Fire Alarm Resource Center

What This Code Means

A device type identifier and event code for a monitor module programmed to monitor sprinkler system waterflow switches, representing a high-priority alarm condition.

Common Causes

1Activation of a waterflow pressure or vane switch
2Water movement within the sprinkler system piping
3Sprinkler system testing or maintenance
4Expiration of the Waterflow Retard Timer delay

Resolution Steps

Press the Acknowledge/Step or Alarm Silence key to silence the pulsing piezo. Note that the Alarm Silence key will not function if the mapped NAC outputs are programmed for nonsilenceable operation or if the Waterflow Silenceable option is set to NO in system programming. Once the waterflow condition is corrected, press the Reset key to return the system to normal operation.

Manual References(1)

1notifierNFW2-100Installation2005p. 127, 104, 126, 107, 109 +15Open

Related Codes

INVREPInvalid reply from the addressable device, indicating a hardware problem.COMM FAULT 1The control panel has failed 10 total attempts to communicate with the primary Central Station phone number.DUCT SUPERVISORYA supervisory condition has been triggered by a duct smoke detector.NAC 1 FAULTA fault condition (open or short) on Notification Appliance Circuit 1.DIRTY2Maintenance alert indicating that a detector needs immediate maintenance due to being within 80% of its alarm threshold for 24 hours.

Notifier NFW2-100

What This Code Means

Common Causes

Resolution Steps

Manual References(1)

Field Notes

Related Codes

Related Questions