Symbols for signal initiating devices and switches – Potter Fire Alarm Systems User Manual
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Fire Alarm Training • 8700055 • Rev F • 4/10
Symbols for Signal Initiating Devices and Switches
Symbol
Description
Comments
Manual station
Basic shape
Manual station-Halon
Manual station-carbon dioxide
Manual station-dry chemical
Manual station-foam
Manual station-wet chemical
Manual station-pull station
Manual station-clean agent
Manual station-water mist
Manual station-deluge sprinkler
Fire alarm master box
Drill key
Preaction system
Fire service or emergency telephone station
Basic shape
Fire service or emergency telephone station-accessible
Fire service or emergency telephone station
Fire service or emergency telephone station-handset
Abort switch
Basic shape
Abort switch-Halon
Abort switch-carbon dioxide
Abort switch-dry chemical
CO
2
HL
DC
FO
WC
P
CA
WM
DL
MB
DK
PRE
A
J
H
HL
CO
2
DC