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TROUBLESHOOTING PROCEDURES - continued - TM-55-1925-292-14-P0148
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TM-55-1925-292-14-P Firefighting Fire Alarm and Fire Suppression Systems Inland and Coastal Large TUG (LT) Manual
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TROUBLESHOOTING PROCEDURES - continued - TM-55-1925-292-14-P0150
TM 55-1925-292-14&P
0009 00
Fire Detection System Activates
with No Alarm Condition Present
Are
Reset the activated
any of
fire alarm pull station(s)
Yes
Verify that no alarm
the fire alarm
with the hex key and
condition actually exists.
pull stations
reset the fire detection
activated?
Does
the fire
detection panel
Yes
No
return to normal
operation with
the alarm
1. Determine which zone is
secured?
causing the fire detection panel
to alarm.
2. Check the condition of the
No
end of line device capacitor in
that zone.
Does
the end
No
of line capacitor
Notify the maintenance
in the activated
supervisor of the defect.
zone check
good?
Yes
Does
1. Replace a smoke detector in
the fire
detection panel
the alarmed zone with a known
Yes
return to normal
good smoke detector (WP 0018 00).
operation with
2. Reset the fire detection panel
the alarm
secured?
No
1. Install the original smoke detector.
Does
2. Replace the next smoke detector
the fire
detection panel
in the alarmed zone with the known
Yes
return to normal
good smoke detetcor (WP 0018 00).
operation with
3. Systematically repeat the process
the alarm
of replacing each smoke detector in
secured?
the alarmed zone until the fire detection
panel returns to normal operation
(WP 0005 00) or until all smoke
No
detectors in the zone have been
replaced (WP 0018 00).
Are
there any
1. Replace the thermal heat detector
Yes
thermal heat
in the alarmed zone with a known good
detectors in the
thermal heat detector (WP 0018 00).
alarmed
zone?
2. Reset the fire detection panel
No
Exit
A
B
To Sheet 2
To Sheet 2
Procedure 8. Fire Detection Activates With No Alarm Condition Present (Sheet 1 of 2)
0009 00-13

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