Potter Fire Alarm Systems - Manual (Page 10)

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Fire Alarm Training • 8700055 • Rev F • 4/10
Symbols for Signal Initiating Devices and Switches
Symbol Description Comments
Abort switch-foam
Abort switch-wet
Abort switch-clean agent
Abort switch-water mist
Abort switch-deluge sprinkler
Abort switch-preaction system
Abort switch-emergency power off
Automatic detection and supervisory devices Basic shape
Heat detector (thermal detector) Symbol orientation not to be changed
Heat detector-combination rate-of-rise and fixed temperature
Heat detector-rate compensation
Heat detector-fixed temperature
Heat detector-rate-of-rise only
Heat detector-line-type detector (heat sensitive cable)
Smoke/heat detector
FO
WC
CA
WM
DL
PRE
EPO
R/F
R/C
F
R
R
* Symbols are copied from the National Fire Protection Association Standard 170, Standard for Fire Safety and Emergency Symbols