DN-60637:N • 9/15/2022 — Page 3 of 7
•
Optional addressable sounder base for Temp-3 (fire) or Temp-4
(CO) tone.
•
Automatic drift compensation of smoke sensor and CO cell.
•
High nuisance-alarm immunity.
•
ULC listed models available; -A models are ULC Listed.
FPTI-951(A) I
NTELLIGENT
M
ULTI
-C
RITERIA
D
ETECTOR
•
Combined photoelectric, thermal, and infrared sensor
•
UL 268 7th Edition and UL 521 Listed; Canadian models CAN/
ULC S529 and CAN/ULC S530
•
Microprocessor-based technology; combination photo, thermal,
and infrared technology.
FPC-951(A) P
HOTOELECTRIC
/CO S
ENSOR
•
Combined photoelectric and carbon monoxide sensor
FSCO-951 I
NTELLIGENT
CO S
ENSOR
•
Carbon monoxide sensor
FS-OSI-RI(A) A
DDRESSABLE
INTELLIGENT
SINGLE
-
ENDED
BEAM
SMOKE
DETECTOR
•
Intelligent addressable reflector-type linear optical beam smoke
detector
•
Fast, easy, and intuitive beam alignment indicated by directional
LED arrows
•
Long range coverage of 16-328 ft (5-100 m) is standard; no sepa-
rate long-range kit required
I
NTELLIGENT
VESDA-E D
ETECTORS
•
Intelligent aspiration smoke detectors connect directly to the SLC
loop of compatible ONYX® Series panels:
–
VEA-040-A00-NTF, VEA-040-A10-NTF
–
VEP-A00-P-NTF, VEP-A10-P-NTF, VEP-A00-1P-NTF
–
VEU-A00-NTF, VEU-A10-NTF
–
VES-A00-P-NTF-UL, VES-A10-P-NTF-UL
•
Models offer LED display, LCD display, or both
•
Coverage options for spaces up to 69,965 square feet
FlashScan, Exclusive
World-Leading Detector Protocol
At the heart of the NFS-320SYS is a set of detection devices and
device protocol — FlashScan (U.S. Patent 5,539,389). FlashScan is
an all-digital protocol that gives superior precision and high noise
immunity.
In addition to providing quick identification of an active input device,
this protocol can also activate many output devices in a fraction of
the time required by competitive protocols. This high speed also
allows the NFS-320SYS to have the largest device per loop capacity
in the industry — 318 points — yet every input and output device is
sampled in less than two seconds. The microprocessor-based
FlashScan detectors have bicolor LEDs that can be coded to provide
diagnostic information, such as device address during Walk Test.
ONYX Intelligent Sensing
Intelligent sensing is a set of software algorithms that provides the
NFS-320SYS with industry-leading smoke detection capability.
These complex algorithms require many calculations on each read-
ing of each detector, and are made possible by the high-speed
microcomputer used by the NFS-320SYS.
Drift Compensation and Smoothing:
Drift compensation allows
the detector to retain its original ability to detect actual smoke, and
resist false alarms, even as dirt accumulates. It reduces mainte-
nance requirements by allowing the system to automatically perform
the periodic sensitivity measurements required by NFPA 72.
Smoothing filters are also provided by software to remove transient
noise signals, such as those caused by electrical interference.
Maintenance Warnings:
When the drift compensation performed
for a detector reaches a certain level, the performance of the detec-
tor may be compromised, and special warnings are given. There are
three warning levels: (1) Low Chamber value; (2) Maintenance Alert,
indicative of dust accumulation that is near but below the allowed
limit; (3) Maintenance Urgent, indicative of dust accumulation above
the allowed limit.
Sensitivity Adjust:
Nine sensitivity levels are provided for alarm
detection. These levels can be set manually, or can change automat-
ically between day and night. Nine levels of pre-alarm sensitivity can
also be selected, based on predetermined levels of alarm. Pre-alarm
operation can be latching or self-restoring, and can be used to acti-
vate special control functions.
Self-Optimizing Pre-Alarm:
Each detector may be set for “Self-
Optimizing” pre-alarm. In this special mode, the detector “learns” its
normal environment, measuring the peak analog readings over a
long period of time, and setting the pre-alarm level just above these
normal peaks.
Cooperating Multi-Detector Sensing:
A patented feature of ONYX
intelligent sensing is the ability of a smoke sensor to consider read-
ings from nearby sensors in making alarm or pre-alarm decisions.
Without statistical sacrifice in the ability to resist false alarms, it
allows a sensor to increase its sensitivity to actual smoke by a factor
of almost two to one.
Field Programming Options
Autoprogram
is a timesaving feature. The FACP “learns” what
devices are physically connected and automatically loads them in
the program with default values for all parameters. Requiring less
than one minute to run, this routine allows the user to have almost
immediate fire protection in a new installation, even if only a portion
of the detectors are installed.
Keypad Program Edit (with KDM-R2)
The NFS-320SYS, like all
NOTIFIER intelligent panels, has the exclusive feature of program
creation and editing capability from the front panel keypad, while
continuing to provide fire protection. The architecture of the NFS-
320SYS software is such that each point entry carries its own pro-
gram, including control-by-event links to other points. This allows the
program to be entered with independent per-point segments, while
the NFS-320SYS simultaneously monitors other (already installed)
points for alarm conditions.
VeriFire
®
Tools
is an offline programming and test utility that can
greatly reduce installation programming time, and increase confi-
dence in the site-specific software. It is Windows
®
-based and pro-
vides technologically advanced capabilities to aid the installer. The
installer may create the entire program for the NFS-320SYS in the
comfort of the office, test it, store a backup file, then bring it to the
site and download from a laptop into the panel.
Placement of Equipment
in Chassis and Cabinet
The following guidelines outline the NFS-320SYS’s flexible system
design.
Rows:
The first row of equipment in the cabinet mounts in the chas-
sis shipped with the FACP. Mount the second, third, or fourth rows of
equipment in a CHS-4 Series chassis. Other options are available;
see your panel’s installation manual.
Wiring:
When designing the cabinet layout, consider separation of
power-limited and non-power-limited wiring as discussed in the
NFS-320SYS Installation Manual.
Positions:
A chassis offers four basic side-by-side positions for
components; the number of modules that can be mounted in each
position depends on the chassis model and the size of the individual