SilentKnight HFS-PT - Manual

HW-400-005 1 I56-3483-000R
This sensor must be installed in compliance with the control panel system
installation manual. The installation must meet the requirements of the Au-
thority Having Jurisdiction (AHJ). Sensors offer maximum performance when
installed in compliance with the National Fire Protection Association (NFPA);
see NFPA 72.
GeneRaL DeSCRIPtIOn
Models HFS-P and HFS-PT are plug-in type smoke sensors with a plug-in de-
tector base that combine a photoelectronic sensing chamber with address-
able-analog communications. The sensors transmit an analog representation
of smoke density over a communication line to a control panel. Rotary de-
cade switches are provided for setting the sensor’s address. The detector is
intended for use in a 2-wire intelligent system, with screw terminals provided
for power (+ and –).
Two LEDs on the sensor are controlled by the panel to indicate sensor sta-
tus. Model HFS-PT combines a photoelectronic sensing chamber and 135°F
(57.2°C) fixed temperature heat detector.
The HFS-P and HFS-PT require compatible addressable communications to func-
tion properly. Connect these sensors to listed-compatible control panels only.
Communication takes place over the power (+ and –) lines.
BaSe teRmInaLS (See FIGURe 1)
NO. FUNCTION
1 Power (–)
2 Power (+)
SPaCInG
Space sensors in compliance with NFPA 72. In low air flow applications with
smooth ceilings, space sensors 30 feet apart. For specific information regard-
ing sensor spacing, placement, and special applications, refer to NFPA 72 or
the System Smoke Detector Application Guide.
NOTE: These products are not listed for use inside duct smoke detectors.
mOUntInG
This detector base mounts directly to 3½- and 4-inch octagon boxes, 4-inch
square boxes (with or without plaster rings, see Figure 2), and single gang
boxes. Install the base on the box using the screws supplied with the junction
box and the appropriate mounting slots in the base.
WIRInG GUIDe
All wiring must be installed in compliance with the National Electrical Code,
applicable local codes, and any special requirements of the Authority Hav-
ing Jurisdiction. Proper wire gauges should be used. The conductors used to
connect smoke detectors to control panels and accessory devices should be
color-coded to reduce the likelihood of wiring errors. Improper connections
will prevent a system from responding properly in the event of a fire.
For signal wiring (the wiring between interconnected detectors), it is recom-
mended that the wire be no smaller than AWG 18. However, the screws and
clamping plate in the base can accommodate wire sizes up to AWG 12. The
use of twisted pair wiring or shielded cable for the power (+ and –) loop is
recommended to minimize the effects of electrical interference.
HFS-P and HFS-Pt
Intelligent Photoelectric Smoke Sensors
with Plug-In Detector Base
I56-3483-000R
InStaLLatIOn anD maIntenanCe InStRUCtIOnS
SPeCIFICatIOnS
Operating Voltage Range:
15 to 32 VDC
Standby Current: 300µA @ 24 VDC (one communication every 5 seconds with LED blink enabled)
Maximum Alarm Current (LED on): 6.5 mA @ 24 VDC
Operating Humidity Range: 10% to 93% Relative Humidity, Non-condensing
Operating Temperature Range: 32°F to 120°F (0°C to 49°C), HFS-P; 32°F to 100°F (0°C to 38°C), HFS-PT
Air Velocity: 0 to 4000 ft/min
Height: 2.0˝ (51 mm)
Diameter: 6.1˝ (155 mm)
Weight: 5.7 oz. (162 g)
Mounting: 4˝ (102 mm) square box with or without plaster ring; Minimum Depth – 1½˝ (38 mm)
4˝ Octagon Box; Minimum Depth – 1½˝ (38 mm)
3½˝ Octagon Box; Minimum Depth – 1½˝ (38 mm)
Single Gang Box; Minimum Depth – 1½˝ (38 mm)
12 Clintonville Road
Northford, CT 06472-1653
Phone: 203.484.7161
FIGURe 1. teRmInaL LayOUt:
FIGURe 2. mOUntInG DeteCtOR tO BOx:
BASE
TERMINALS
1
2
C0127-01
C0128-02
SCREWS
(NOT SUPPLIED)
DETECTOR
BASE
BOX
(NOT SUPPLIED)
R E V I S E D
by the Graphic Development Department
Please review all content carefully.
9:49 am, Oct 14, 2009