Gentex 8243, 8240, 8100, 8103 User Manual
88000000
SSEERRIIEESS
PHOTOELECTRIC TYPE OPEN AREA SYSTEM DETECTORS
Installation Instructions - Owner's Information READ CAREFULLY AND SAVE
INTRODUCTION 8000 SERIES
The 8000 Series smoke detector is an open area photoelectric system smoke
detector, engineered to provide reliable early warning against smoke. Each smoke
detector is provided with a standard Form A/FormC relay for alarm and auxiliary
functions.
Supplied with each detector is a quick-disconnect wiring harness and universal
mounting bracket.
MODELS AVAILABLE
(SEE BACK OF SMOKE DETECTOR FOR EXACT MODEL)
8240/8243.........................................24VDC
8100/8103.........................................120VAC, 60 HZ
OPTIONS, SELECTIONS
* P......................................................BUILT-IN PIEZO HORN
T.......................................................INTEGRAL 135°F THERMAL SENSOR
**H......................................................ISOLATED 135°F THERMAL SENSOR
Y.......................................................NON-LATCHING/SELF-CLEARING
* All detectors with the piezo horn option include smoke detector reverse polarity
horn activation. Relay contacts are not activated with the application of reverse
polarity power.
** The H Series 135°F normally open isolated thermal is not wired into the detection
circuit. It is for remote connection to the auxiliary annunciation circuit. The "H"
thermal is supervised with two wires in and two wires out.
The 8240P/8100P models produce a non-temporal audible alarm and are
therefore not intended for locations where the desired action of the
occupant(s) is evacuation.
The 8243P/8103P models produce a temporal 3 audible alarm. Per NFPA
72, the American National Standard Audible Emergency Evacuation
Signal as defined in ANSI S3.41, is required whenever the intended
response is to evacuate the building.
ELECTRICAL SPECIFICATIONS
MODEL NUMBERS 8240 8100
Operating Voltage Nominal: 24VDC 120VAC
Range Min: 18VDC 110VAC
Frequency ------ 60Hz.
Current consumption at Normal Operating Voltage
NOTICE: FOR "P" OPTION (HORN), ALARM CURRENT CONSUMPTION IS
UNCHANGED. REVERSE POLARITY CURRENT IS 15MA.
Alarm Relay Contacts: 1 Form A.....................................................Rated Load (Resistive)
Auxiliary Relay Contact: 1 Form C..................................................Rated Load (Resistive)
Temperature................................................................................40ºF-100ºF(4.4ºC-37.8ºC)
Humidity...................................................................................10%-93% Relative Humidity
Size...................................................................................................5.7"W x 5.7"H x 2.8"D
HOW YOUR SMOKE DETECTOR WORKS
The unit's sensing chamber houses a light source and a light sensor.
permit optimum smoke entry from any direction while rejecting light from outside the
detector.
The light sensor is a photodiode matched to the light frequency of the LED light source.
Max: 30VDC 130VAC
Standby 6mA 70mA
Alarm 60mA 70mA
1 Amp at 24 Volt DC
0.5 Amp at 120 Volt AC
1 Amp at 24 Volt DC
0.5 Amp at 120 Volt AC
The 8000 Series smoke detector operates on the photoelectric light scatter principle.
The darkened sensing chamber is exposed to the atmosphere and designed to
The light source is an infrared (invisible) LED which pulses every 4 to 8 seconds.
Under normal conditions, the light generated by the pulsing infrared LED is not seen
by the light sensor. When smoke enters the sensing chamber, light from the pulsing
LED light source is reflected by the smoke particles onto the photodiode light sensor. At
the first sighting of smoke, the smoke detector is put into a pre-alarm mode. This is
indicated by a rapidly flashing LED on the face of the smoke detector.
Once the light sensor confirms smoke for 2 consecutive pulses inside the chamber,
the light sensor produces the signal necessary to trigger the alarm.
This technique of verifying the smoke condition, combined with a 5-to-1 signal-tonoise ratio, substantially reduces the possibility of nuisance alarms.
PLACEMENT OF SMOKE DETECTORS
THIS EQUIPMENT SHOULD BE INSTALLED IN ACCORDANCE WITH THE
NATIONAL FIRE PROTECTION ASSOCIATION’S
STANDARD 72 (National Fire Protection Association, Batterymarch Park, Quincy, MA
02269).
For your, information, the National Fire Protection Association’s Standard 72, 2010
Edition, Chapter 17 states the following:
17.7.3.1.1 The location and spacing of smoke detectors shall be based upon the
anticipated smoke flows due to the plume and ceiling jet produced by the anticipated
fire, as well as any pre-existing ambient airflows that could exist in the protected
compartment.
17.7.3.1.2 The design shall account for the contribution of the following factors in
predicting detector response to the anticipated fires to which the system is intended to
respond:
(1) Ceiling shape and surface
(2) Ceiling height
(3) Configuration of contents in the protected area
(4) Combustion characteristics and probable equivalence ratio of the anticipated fire
involving the fuel loads within the protected area
(5) Compartment ventilation
(6) Ambient temperature, pressure, altitude, humidity, and atmosphere
17.7.3.1.3 If the intent is to protect against a specific hazard, the detector(s) shall be
permitted to be installed closer to the hazard in a position where the detector can
intercept the smoke.
17.7.3.1.4 If the intent is to initiate action when smoke/fire threatens a specific object or
space, the detector shall be permitted to be installed in close proximity to that object or
space.
17.7.3.2 Spot-Type Smoke Detectors
17.7.3.2.1 Spot-type smoke detectors shall be located on the ceiling or, if on a sidewall,
between the ceiling and 12 in. (300 mm) down from the ceiling to the top of the detector.
17.7.3.2.2 To minimize dust contamination, smoke detectors shall be in accordance with
17.7.3.2.3.1 through 17.7.3.2.3.5.
17.7.3.2.3.1 In the absence of specific performance-based design criteria, smooth
ceiling smoke detector spacing shall be a nominal 30 ft (9.1 m).
17.7.3.2.3.2 In all cases, the manufacturer’s published instructions shall be followed.
17.7.3.2.3.3 Other spacing shall be permitted to be used depending on ceiling height,
different conditions, or response requirements.
17.7.3.2.3.4 For the detection of flaming fires, the guidelines in Annex B shall be
permitted to be used.
17.7.3.2.3.5 For smooth ceilings, all points on the ceiling shall have a detector within a
distance equal to 0.7 times the selected space.
17.7.3.2.4 For solid joist and beam construction, spacing for spot-type smoke detectors
shall be in accordance with 17.7.3.2.4.1 through 17.7.3.2.4.6.
550-0139
Pg. 8-1
17.7.3.2.4.1 Solid joists shall be considered equivalent to beams for smoke detector
spacing guidelines.
17.7.3.2.4.2 For level ceilings, the following shall apply:
(1) For ceilings with beam depths of less than 10 percent of the ceiling height (0.1H),
smooth ceiling spacing shall be permitted. Spot-type smoke detectors shall be
permitted to be located on ceilings or on the bottom of beams.
(2) For ceilings with beam depths equal to or greater than 10 percent of the ceiling
height (0.1H), the following shall apply:
(a) Where beam spacing is equal to or greater than 400 percent of the ceiling
heights (0.4 H), the following shall be permitted for spot detectors:
i. Smooth ceiling spacing in the direction parallel to the beams and at one-half
smooth ceiling spacing in the direction perpendicular to the beams
ii. Location of detectors either on the ceiling or on the bottom of the beams
(3) For beam pockets formed by intersecting beams, including waffle or pan-type
ceilings, the following shall apply:
(a) For beam depths less than 10 percent of the ceiling height (0.1H), spacing shall
in accordance with 17.7.3.2.4.2(1).
(b) For beam depths greater than or equal to 10 percent of the ceiling height
(0.1H), spacing shall be in accordance 17.7.3.2.4.2(2).
(4) For corridors 15ft (4.6 m) in width or less having ceiling beams or solid joists
perpendicular to the corridor length, the following shall apply:
(a) Smooth ceiling spacing shall be permitted
(b) Location of spot-type smoke detectors on ceilings, sidewalls, or the bottom of
beams or solid joists.
(5) For rooms of 900 ft2(84 m2) or less, the following shall be permitted:
(a) Use of smooth ceiling spacing
(b) Location of spot-type smoke detectors on ceilings or on the bottom of beams
17.7.3.2.4.3 For sloping ceilings with beams running parallel up slope, the following shall
apply.
(1) Spot-type detector(s) shall be located on the ceilings within beam pocket(s).
(2) The ceiling height shall be taken as the average height over slope.
(3) Spacing shall be measured along a horizontal projection of the ceiling
(4) Smooth ceiling spacing shall be permitted within beam pocket(s) parallel to the
beams.
(5) For beam depths less than or equal to 10 percent the ceiling height (0.1 H),
spot-type detectors shall be located with smooth ceiling spacing perpendicular to
the beams.
(6) For beam depths greater than 10 percent of the ceiling height (0.1 H), the following
shall apply for spacing perpendicular to the beams:
(a) For beam spacing greater than or equal to 40 percent of the ceiling height (0.4
H), spot-type detectors shall be located in each beam pocket.
(b) For beam spacing less than 40 percent of the ceiling height (0.4 H), spot-type
detectors shall not be required in every beam pocket but shall be spaced not
greater than 50 percent of smooth ceiling spacing.
17.7.3.2.4.4 For sloping ceilings with beams running perpendicular across slope, the
following shall apply:
(1) Spot-type detector(s) shall be located at the bottom of the beams
(2) The ceiling height shall be taken as the average height over slope
(3) Spacing shall be measured along a horizontal projection of the ceiling
(4) Smooth ceiling spacing shall be permitted within beam pocket(s).
(5) For beam depths less than or equal to 10 percent of the ceiling height (0.1 H),
spot-type detectors shall be located with smooth ceiling spacing.
(6) For beam depths greater than 10 percent of the ceiling height (0.1 H), spot-type
detectors shall not be required to be located closer than (0.4 H) and shall not
exceed 50 percent of smooth ceiling spacing.
17.7.3.2.4.5 For sloped ceilings with beam pockets formed by intersecting beams, the
following shall apply:
(1) Spot-type detector(s) shall be located at the bottom of the beams.
(2) The ceiling height shall be taken as the average height over slope.
(3) Spacing shall be measured along a horizontal projection of the ceiling.
(4) For beam depths less than or equal to 10 percent of the ceiling height (0.1 H),
spot-type detectors shall be spaced with not more than three beams between
detectors and shall not exceed smooth ceiling spacing
(5) For beam depths greater than 10 percent of the ceiling height (0.1 H), spot-type
detectors shall be spaced with not more than two beams between detectors, but
shall not be required to be spaced closer than (0.4 H), and shall not exceed 50
percent of smooth ceiling spacing.
17.7.3.2.4.6 For sloped ceilings with solid joists, the detectors shall be located on the
bottom of the joist.
17.7.3.3 Peaked. Detectors shall first be spaced and located within 36 in. (910 mm) of
the peak, measured horizontally. The number and spacing of additional detectors, if
any, shall be based on the horizontal projection of the ceiling.
17.7.3.4 Shed. Detectors shall first be spaced and located within 36 in. (910 mm) of the
high side of the ceiling, measured horizontally. The number and spacing of additional
detectors, if any, shall be based on the horizontal projection of the ceiling.
17.7.3.5 Raised Floors and Suspended Ceilings. Spaces beneath raised floors and
above suspended ceilings shall be treated as separate rooms for smoke detector
spacing purposes. Detectors installed beneath raised floors or above suspended
ceilings, or both, including raised floors and suspended ceilings used for environmental
air, shall not be used in lieu of providing detection within the room.
17.7.3.5.1 For raised floors, the following shall apply:
(1) Detectors installed beneath raised floors shall be spaced in accordance 17.7.3.1,
17.7.3.1.3, and 17.7.3.2.2.
(2) Where the area beneath the raised floor is also used for environmental air, detector
spacing shall also conform to 17.7.4.1 and 17.7.4.2.
17.7.3.5.2 For suspended ceilings, the following shall apply:
(1) Detector spacing above suspended ceilings shall conform to the requirements of
17.7.3 for the ceiling configuration
(2) Where detectors are installed in ceilings used for environmental air, detector
spacing shall also conform to 17.7.4.1 and 17.7.4.2.
INSTALLATION OF 8000 SERIES
MOUNT ROUGH-IN BOX & RUN WIRING
IMPORTANT: INSURE THAT ALL FLUORESCENT LIGHTING FIXTURES ARE
PROPERLY GROUNDED.
1. Use a 2" x 3" switch box or a 4" square or octagon junction box. Mount a box for
each smoke detector and run the system fire detection circuit plus the power circuit to
all smoke detector locations. See Wiring Diagrams, FIGURES A and B, for Latching
Models, and FIGURES C and D for Self Clearing Models.
NOTICE: THE WIRING TO BE USED SHALL BE IN ACCORDANCE WITH THE
PROVISIONS OF ARTICLE 300.3(B) OF THE NATIONAL ELECTRICAL CODE,
NFPA 70, AS WELL AS ARTICLE 210.
CAUTION: Break wire runs to provide supervision for connections made to each wire
pair.
NOTICE:
120 AC VOLTAGE (8100 & 8103 SERIES):
HOT (BLACK) WIRE: PIN 3 AND PIN 6
NEUTRAL (WHITE) WIRE: PIN 12 AND PIN 15
24 DC VOLTAGE (8240 & 8243 SERIES):
POSITIVE (RED) WIRE: PIN 3 AND PIN 6
NEGATIVE (BLACK) WIRE: PIN 12 AND PIN 15
FIGURE A
CLASS B PANEL WIRING DIAGRAM
FIGURE B
CLASS A PANEL WIRING DIAGRAM
550-0139
Pg. 8-2
Loading...