ZP3-ECU Maintenance Manual Doc. No. 503-0800ZE-M-01
Issue 1 (01/08/2006) Page 11
Fault Finding - Extinguishing Control Unit Faults
Extinguishing Control Unit General Faults
There are a number of faults identified by the control panel as a general fault on the
extinguishing control unit.
Indications
• Panel buzzer sounds.
• Display indicates a fault as GNFLT, for example:
GNFLT Zone 001 Dev 5002 Event 012
Carbon dioxide ECU storage room
• Events are printed (if printer configured).
• Appropriate red Zone LED illuminates to indicate the zone in which the fault occurred.
Possible Causes
A fault on the control system falls into one of the following categories:
• Manual Extinguishant Release Faults.
• Extinguishant Actuation Faults.
• Extinguishant Pressure Faults.
• Fire Bell Fault.
• Extinguishant Discharge Siren Fault.
Corrective Actions
1. Press the ACCEPT button to accept the fault.
2. Refer to the paragraphs below with regard to the type of fault displayed.
3. Reset the panel.
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