NFS2-640/E Operations Manual —
P/N 52743:F1 06/16/2011
19
System Trouble Mode of Operation
Operation of the Control Panel
3.4 System Trouble Mode of Operation
3.4.1 How the Control Panel Indicates a System Trouble
The system goes into system trouble when the control panel detects an electrical fault. If no fire
alarms exist, the control panel does the following:
•
Produces a pulsed audible tone
•
Activates the Trouble relay (TB4)
SMOKE(ION)
Y
Indicates activation of an ion smoke detector
Lights
FIRE
ALARM
LED and activates CBE
SMOKE(DUCT I)
Y
Indicates activation of a duct ion smoke detector
Lights
FIRE
ALARM
LED and activates CBE
SMOKE(PHOTO)
Y
Indicates activation of a photo smoke detector
Lights
FIRE
ALARM
LED and activates CBE
RF_PHOTO
Y
Indicates activation of a wireless photoelectric smoke
detector
Lights
FIRE
ALARM
LED and activates CBE
SMOKE(DUCTP)
Y
Indicates activation of a duct photo smoke detector
Lights
FIRE
ALARM
LED and activates CBE
SMOKE(HARSH)*
Y
Indicates activation of a HARSH smoke detector
Lights
FIRE
ALARM
LED and activates CBE
SMOKE(LASER)
Y
Indicates activation of a laser smoke detector
Lights
FIRE
ALARM
LED and activates CBE
SMOKE(DUCTL)
Y
Indicates activation of a duct laser smoke detector
Lights
FIRE
ALARM
LED and activates CBE
SMOKE(BEAM)
Y
Indicates activation of a beam smoke detector
Lights
FIRE
ALARM
LED and activates CBE
SMOKE(DUCTL)
Y
Indicates activation of a duct laser smoke detector
Lights
FIRE
ALARM
LED and activates CBE
AIR REF
Y
Indicates activation of a laser air reference detector.
Lights
FIRE
ALARM
LED and activates CBE
HEAT
Y
Indicates activation of a 190
o
F intelligent thermal detector Lights
FIRE
ALARM
LED and activates CBE
HEAT+
Y
Indicates activation of a 190
o
F adjustable threshold
intelligent thermal detector
Lights
FIRE
ALARM
LED and activates CBE
HEAT(ANALOG)
Y
135
o
F intelligent thermal sensor
Lights
FIRE
ALARM
LED and activates CBE
HEAT (ROR)
Y
15
o
F per minute rate-of-rise detector
Lights
FIRE
ALARM
LED and activates CBE
SMOKE ACCLIM
Y
Indicates activation of detector (Acclimate Plus™, FSC-
851 IntelliQuad), without freeze warning
Lights
FIRE
ALARM
LED and activates CBE
SMOKE (ACCL+)
Y
Indicates activation of detector (Acclimate Plus™, FSC-
851 IntelliQuad), with freeze warning
Lights
FIRE
ALARM
LED and activates CBE
SMOKE MULTI*
Y
Multisensor smoke detector
Lights
FIRE
ALARM
LED and activates CBE
PHOTO/CO*
Y
Indicates activation of the Photo, Heat, or CO element of a
detector.
Lights
FIRE
ALARM
LED for photo and heat,
no LED will light for a CO alarm. Photo and
heat will activate CBE, CO alarm activates
special function zone FC and sixth CBE
zone only (sixth CBE zone programmable
via VeriFire Tools)
PHOTO/CO (P SUP)*
Y
Indicates activation of the Photo, Heat or CO element of a
detector.
Lights
FIRE
ALARM
LED for heat, no LED will
light for a CO alarm, supervisory LED will
light for photo alarm, heat and photo will
activate CBE, CO alarm activates special
function zone FC and sixth CBE zone only
(sixth CBE zone programmable via VeriFire
Tools)
PHOTO/CO (C SUP)*
Y
Indicates activation of the Photo, Heat or CO element of a
detector.
Lights
FIRE
ALARM
LED for heat and photo
alarms, will light supervisory LED for CO
alarm, photo and heat alarms will activate
CBE, CO alarm will activate sixth CBE
zone only (sixth CBE zone programmable
via VeriFire Tools)
*FlashScan only
Type Code
Latching
(Y/N)
Purpose
What it does
Table 3.1 Fire Alarm Type Codes (2 of 2)
