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DUCT SUPERVISORY
supervisory

Fire-Lite MS-9200UDLS

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What This Code Means

A duct smoke detector has entered a supervisory state.

Common Causes

  • 1Trace smoke in HVAC ducts
  • 2Dirty detector head
  • 3Airflow issues

Resolution Steps

Inspect the duct detector and the HVAC system. Clean the detector head if it is dirty.

Manual References(3)

Field Notes

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Related Codes

NAC 3 FAULTA fault condition (open or short) has been detected on Notification Appliance Circuit 3.COMM FAULT 1The communicator failed to successfully transmit a report to the central station using line 1.TELCO LINE 1The panel has detected a loss of voltage or failure on telephone line 1.COMM FAULT 1 / COMM FAULT 2Indicates a communication failure between the panel's internal Digital Alarm Communicator/Transmitter (DACT) and the central station.NAC 4 FAULTA fault condition (open or short) has been detected on Notification Appliance Circuit 4.

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All MS-9200UDLS trouble codesMS-9200UDLS panel page