Gentex HD135 Series User manual

135°F FIXED TEMPERATURE HEAT ALARM, AC POWERED WITH BATTERY BAC UP,
120VAC/9VDC, 60Hz OR 220VAC/9VDC, 50/60Hz
Installation Instructions - Owner's Information READ CAREFULLY AND SAVE
INTRODUCTION HD135
The HD135 Series heat alarm is for use as an evacuation device in residential
applications. Each alarm has a solid state piezo that emits a temporal 3 signal to
warn and alert the household to the presence of threatening heat.
Your heat alarm is designed to detect heat that results from an actual fire. Heat
alarms are intended for use as supplements to smoke alarms. This unit cannot detect
smoke or other toxic gases, therefore, do not rely solely on this heat alarm to provide
warning of a fire.
BASIC SAFETY INFORMATION
Dangers, Warnings, Cautions and Notices alert you to important operating
procedures or to potentially hazardous situations. Pay special attention to these
items.
wThis heat alarm is listed for use in single-family and multi-family residences,
along with hotels, motels and other commercial residential occupancies.
wNEVER ignore your heat alarm if it sounds. Failure to do so can result in
serious injury or death.
wTest this device once a week per manufacturer installation recommendation.
If the device ever fails to test correctly, replace immediately! If the device is
not working properly, it cannot alert you to a problem.
wThis product is intended for use in indoor locations of family dwelling units.
MODELS
(SEE BAC OF HEAT ALARM FOR EXACT MODEL)
*HD135...................................................................120VAC, 60Hz with Temporal 3 Horn
*HD135-223.......................................................220VAC, 50/60Hz with Temporal 3 Horn
* 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.
NOTICE: IN THE EVENT AC POWER FAILS, A 9VDC BATTERY WILL PROVIDE
PROPER ALARM OPERATION FOR A MINIMUM OF A 24-HOUR PERIOD.
ELECTRICAL SPECIFICATIONS
OPERATING VOLTAGE............................................................................120VAC, 60Hz
OPERATING CURRENT (MAX.) (120VAC/9VDC).........................................0.035 amps
OPERATING VOLTAGE.......................................................................220VAC, 50/60Hz
OPERATING CURRENT (MAX.) (220VAC/9VDC).........................................0.035 amps
OPERATING AMBIENT TEMPERATURE RANGE.....................................40OF to 100OF
ALARM HORN RATING...........................................meets or exceeds 85 dBA at 10 feet
MUST USE DURACELL® MN 1604 BATTERY
HOW TO TELL IF YOUR HEAT ALARM IS WOR ING PROPERLY
wYour heat alarm is provided with an alarm horn and pulsating Light Emitting
(indicator) Diode, which pulses every 30 seconds and a green AC power on LED.
wIf the battery is low or missing, a chirp will be emitted when the red LED flashes.
If the heat alarm is malfunctioning, the chirp is sounded without the red LED
flashing. If AC power fails, the green LED will turn off.
wTo test your heat alarm, direct a hair dryer at the sensor element (silver disk) at a
4-6" distance. Alternatively, a cordless soldering iron may be applied to the sensor
element. The unit will return to normal standby mode once the disk cools down. A
cold damp rag or sponge may be used to quickly cool the sensor.
NOTE: TANDEM INTERCONNECT MODELS.
wWhen testing one heat alarm, the heat alarm that is activated will flash the red
indicator light and sound its alarm horn. All other units will sound the alarm horn
with their red indicator lights remaining off. The relays will also activate on all units
in tandem on models equipped with the relay option.
FIRE PROTECTION PLAN: WHAT YOU CAN DO TO MA E YOUR
FAMILY SAFE FROM FIRES
Please note that there are hazards against which heat detection may not be
effective, such as smoking in bed, explosions, when a closed door separates the heat
alarm from the source of the fire, etc. The ultimate responsibility for fire protection
rests solely on you.
Installing heat alarms is just the first step in protecting your family from fires. You
also must reduce the chances that fires will start in your home and increase your
chances of safely escaping if one does start. To have an effective fire safety program:
a. Install smoke and heat alarms properly following the instructions in this
manual. eep your units clean. Test your alarm weekly and have unit
repaired or replace alarm when it when it no longer functions. As with any
electronic product, smoke and heat alarms have a limited life, and devices that
don't work cannot protect you.
b. Follow safety rules and prevent hazardous situations:
wUse smoking materials properly; never smoke in bed.
weep matches and cigarette lighters away from children.
wStore flammable materials in proper containers and never use them near open
flames or sparks.
weep electrical appliances and cords in good working order and do not overload
electrical circuits.
weep stoves, fireplaces, chimneys, and barbecue grills grease-free and make
sure they are properly installed away from combustible materials.
weep portable heaters and open flames such as candles away from combustible
materials.
wDo not allow rubbish to accumulate.
wDo not leave small children home alone.
c. Develop a family escape plan and practice it with your entire family,
especially small children.
wDraw and post a floor plan of your home and find two ways to exit from each
room. There should be one way to get out of each bedroom without opening
the door.
wTeach children what the smoke and heat alarm signal means, and that they
must be prepared to leave the residence by themselves if necessary. Show
them how to check to see if doors are hot before opening them, how to stay
close to the floor and crawl if necessary, and how to use the alternate exit if the
door is hot and should not be opened.
wDecide on a meeting place a safe distance from your house and make sure that
all your children understand that they should go and wait for you if there is a
fire.
wHold fire drills at least every 6 months to make sure that everyone, even small
children, know what to do to escape safely.
wnow where to go to call the fire department from outside your residence.
wProvide emergency equipment such as fire extinguishers and teach your family
to use this equipment properly.
d. Bedroom doors should be closed while sleeping if a smoke or heat
alarm is installed in the bedroom. They act as a barrier against heat and
smoke.
WHAT TO DO IF THERE IS A FIRE IN YOUR HOME
If you have prepared family escape plans and practiced them with your family, you
have increased their chances of escaping safely. Review the following rules with your
children when you have fire drills so everyone will remember them in a real fire
emergency:
a. Don't panic; stay calm. Your safe escape may depend on thinking clearly and
remembering what you have practiced.
b. Get out of the house following a planned escape route as quickly as possible. Do
not stop to collect anything or to get dressed.
c. Open doors carefully only after feeling to see if they are hot. Do not open a door if
it is hot; use an alternate escape route.
d. Stay close to the floor; smoke and hot gases rise.
e. Cover your nose and mouth with a cloth, wet if possible, and take short, shallow
breaths.
HD135
SERIES
550-0158
Pg. HD-1

Installing smoke and heat alarms may make you eligible for lower insurance rates,
but smoke alarms and heat alarms are not a substitute for insurance.
Homeowners and renters should continue to insure their lives and property.
HEAT DETECTION
Ge eral - NFPA 72 does not require heat alarms as part of the basic protection
scheme, it is recommended that the householder consider the use of additional heat
alarms for the same reasons presented in the next section. The additional areas
lending themselves to protection with heat alarms are the dining room, attic (finished
or unfinished), furnace room, utility room, basement and integral or attached garage.
For bedrooms, the installation of a smoke alarm is recommended over the installation
of a heat alarm for protection of the occupants from fires in their bedrooms.
Heat Alarm Mou ti g - Dead Air Space. Heat from a fire rises to the ceiling,
spreads out across the ceiling surface, and begins to bank down from the ceiling. The
corner where the ceiling and the wall meet is an air space into which heat has difficulty
penetrating. In most fires, this dead air space measures about 4 inches (0.1 meter)
down the wall as shown in FIGURE 6. Heat alarms should not be placed in this dead
air space.
The placement of the heat alarm is critical where maximum speed of fire detection
is desired. Thus, a logical location for a heat alarm is the center of the ceiling. At this
location, the alarm is closest to all areas of the room.
If the heat alarm cannot be located in the center of the ceiling, an off-center
location on the ceiling may be permitted to be used.
Per NFPA 72, 2013 29.8.4.3 Heat alarms shall be mounted on the ceiling at least 4
inches (100mm) from a wall or on a wall with the top of the alarm not less than 4
inches (100mm), no more than 12 inches (300 mm), below the ceiling.
The Spaci g of Heat Alarms. Where a room is too large for protection by a single
heat alarm (50 ft. spacing), several heat alarms should be used. It is important that
they be properly located so all parts of the room are covered.
Where the Dista ce Betwee Heat Alarms Should Be Further Reduced. The
distance between heat alarms is based on data obtained from the spread of heat
across a smooth ceiling. Where the ceiling is not smooth, the placement of the heat
alarm should be tailored to the situation.
For instance, with open wood joists, heat travels freely down the joist channels so
that the maximum distance between alarms, 50 ft. (15 m), may be permitted to be
used. However, heat has trouble spreading across the joists, so the distance in this
direction should be ½ the distance allowed between heat alarms, as shown in
FIGURE 1, and the distance to the wall is reduced to 12 ½ ft. (3.8 m). Since ½ x 50
ft. (15 m) is 25 ft. (7.6 m), the distance between alarms across open wood joists
should not exceed 25 ft. (7.6 m), as shown in FIGURE 1, and the distance to the wall
is reduced [ ½ x 25 ft. (7.6 m)] to 12.5 ft. (3.8 m). The alarms are required to be
mounted on the bottom of the joists and not up in joist channels.
Walls, partitions, doorways, ceiling beams and open joists interrupt the normal flow
of heat, thus creating new areas to be protected.
f. eep doors and windows closed unless you open them to escape.
g. Meet at your prearranged meeting place after leaving the house.
h. Call the Fire Department as soon as possible from outside your house. Give the
address and your name.
i. Never re-enter a burning building.
Contact your local Fire Department for more information on making your home
safer from fires and about preparing your family's escape plans.
NOTICE: CURRENT STUDIES HAVE SHOWN SMO E ALARMS AND HEAT
ALARMS MAY NOT AWA EN ALL SLEEPING INDIVIDUALS, AND THAT IT IS THE
RESPONSIBILITY OF INDIVIDUALS IN THE HOUSEHOLD THAT ARE CAPABLE OF
ASSISTING OTHERS TO PROVIDE ASSISTANCE TO THOSE WHO MAY NOT BE
AWA ENED BY THE ALARM SOUND, OR TO THOSE WHO MAY BE INCAPABLE
OF SAFELY EVACUATING THE AREA UNASSISTED.
WHAT THIS HEAT ALARM CAN DO
This heat alarm is designed to sense heat produced by a fire.
HEAT ALARM WILL NOT SENSE SMO E OR OTHER TOXIC
GASES.
When properly located, installed, and maintained, this heat alarm is designed to
provide warning of developing fires at a reasonable cost. This alarm monitors the air
and, when it senses heat, activates its built-in alarm horn.
NOTICE: THIS HEAT ALARM IS DESIGNED FOR USE WITHIN SINGLE
RESIDENTIAL LIVING UNITS ONLY; THAT IS, IT SHOULD BE USED INSIDE A
SINGLE-FAMILY HOME OR ONE APARTMENT OF A MULTI-FAMILY BUILDING. IN
A MULTI-FAMILY BUILDING, THE UNIT MAY NOT PROVIDE EARLY WARNING FOR
RESIDENTS IF IT IS PLACED OUTSIDE OF THE RESIDENTIAL UNITS, SUCH AS
ON OUTSIDE PORCHES, IN CORRIDORS, LOBBIES, BASEMENTS, OR IN OTHER
APARTMENTS. IN MULTI-FAMILY BUILDINGS, EACH RESIDENTIAL UNIT SHOULD
HAVE ALARMS TO ALERT THE RESIDENTS OF THAT UNIT. UNITS DESIGNED TO
BE INTERCONNECTED SHOULD BE INTERCONNECTED WITHIN ONE FAMILY
RESIDENCE ONLY; OTHERWISE, NUISANCE ALARMS WILL OCCUR WHEN AN
ALARM IN ANOTHER LIVING UNIT IS TESTED.
NOTICE: WHAT HEAT ALARMS CANNOT DO
Heat alarms will not work without power. A battery must be connected to the
alarm to maintain proper alarm operation if AC power supply is cut off by an electrical
fire, an open fuse or circuit breaker, or for any other reason. In the event of AC power
failure, the battery will supply power for a minimum of 24 hours.
Heat alarms may not sense a fire that starts where heat cannot reach the
alarms such as in chimneys, in walls, on roofs, or on the other side of closed doors.
Smoke alarms should also be placed in each bedroom as well as in the common hall-
way between them.
Heat alarms also may not sense a fire on another level of a residence or
building. For example, a second-floor alarm may not sense a first-floor or basement
fire. Therefore, alarms should be placed on every level of a residence or
building.
The horn in your heat alarm meets or exceeds current audibility requirements of
ANSI/UL 539. However, if the heat alarm is located outside a bedroom, it may not
wake up a sound sleeper, especially if the bedroom door is closed or only partly
open. If the alarm is located on a different level of the residence than the bedroom, it
is even less likely to awaken people sleeping in the bedroom. In such cases, the
National Fire Protection Association recommends that the alarms be interconnected
so that an alarm on any level of the residence will sound an alarm loud enough to
awaken sleepers in closed bedrooms. This can be done by employing a systematic
approach by interconnecting a fire-detection system, by connecting units together, or
by using radio frequency transmitters and receivers.
All types of smoke and heat alarm sensors have limitations. No type of
smoke or heat alarm can sense every kind of fire every time. In general, alarms
may not always warn you about fires caused by violent explosions, escaping
gas, improper storage of flammable materials, or arson. These types of fires
include:
1) Fires where the victim is intimate with a flaming initiated fire; for example,
when a person’s clothes catch on fire while cooking.
2) Fires where the smoke and/or heat is prevented from reaching the smoke or
heat alarm due to a closed door or other obstruction.
3) Incendiary fires where the fire grows so rapidly that an occupant’s egress is
blocked even with properly located smoke alarms and heat alarms.
NOTICE:
wTHIS HEAT ALARM IS NOT DESIGNED TO REPLACE SPECIAL-PURPOSE FIRE
DETECTION AND ALARM SYSTEMS NECESSARY TO PROTECT PERSONS
AND PROPERTY IN NON-RESIDENTIAL BUILDINGS SUCH AS WAREHOUSES,
OR OTHER LARGE INDUSTRIAL OR COMMERCIAL BUILDINGS. IT ALONE IS
NOT A SUITABLE SUBSTITUTE FOR COMPLETE FIRE-DETECTION SYSTEMS
DESIGNED TO PROTECT INDIVIDUALS IN HOTELS AND MOTELS,
DORMITORIES, HOSPITALS, OR OTHER HEALTH AND SUPERVISORY CARE
AND RETIREMENT HOMES. PLEASE REFER TO NFPA 101,THE LIFE SAFETY
CODE, AND NFPA 72 FOR SMO E ALARM REQUIREMENTS FOR FIRE
PROTECTION IN BUILDINGS NOT DEFINED AS "HOUSEHOLDS."
wTHIS DEVICE WILL NOT SOUND FOR A CARBON MONOXIDE (CO) EVENT
WHEN TANDEM INTERCONNECTED TO A GENTEX CO OR SMO E/CO ALARM 550-0158
Pg. HD-2
FIGURE 1
PLACEMENT OF HEAT ALARMS
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, reads
as follows:
NFPA 72, 2013 Edition, Chapter 29, Section 29.5.1.1 Where required by applicable
laws, codes or standards for a specific type of occupancy, approved single and
multiple-station smoke alarms shall be installed as follows:
29.5.1.1 Where required by applicable laws, codes or standards for a specific type of
occupancy, approved single and multiple-station smoke alarms shall be installed as
follows:
1) In all sleeping rooms and guest rooms
2) Outside of each separate dwelling unit sleeping area, within 6.4m (21ft) of any door
to a sleeping room, the distance measured along a path of travel

Figures 2, 3, 4 & 5 are reprinted with permission from FPA 72, ational Fire Alarm Code®, Copyright ©2010,
ational Fire Protection Association, Quincy, MA 02169. This reprinted material is not the complete and official
position of the ational Fire Protection Association on the referenced subject which is represented only by the
standard in its entirety. ational Fire Alarm Code® and FPA 72® are registered trademarks of the ational Fire
Protection Association, Inc., Quincy, MA 02169.
550-0158
Pg. HD-3
In addition to smoke alarms outside of the sleeping areas and in each bedroom,
NFPA 72 requires the installation of a smoke alarm on each additional level of the
dwelling unit, including the basement. These installations are shown in FIGURE 5.
The living area smoke alarm should be installed in the living room or near the stairway
to the upper lever, or in both locations. The basement smoke alarm should be
installed in close proximity to the stairway leading to the floor above. Where installed
on an open-joisted ceiling, the smoke alarm should be placed on the bottom of the
joists. The smoke alarm should be positioned relative to the stairway so as to
intercept smoke coming from a fire in the basement before the smoke enters the
stairway.
FIGURE 3: A SMO E ALARM MUST BE LOCATED BETWEEN THE SLEEPING
AREA AND THE REST OF THE DWELLING UNIT AS WELL AS IN EACH
BEDROOM.
In dwelling units with more than one bedroom area or with bedrooms on more than
one floor, more than one smoke alarm is required, as shown in FIGURE 4.
FIGURE 2: A SMO E ALARM MUST BE LOCATED ON EVERY LEVEL OF
DWELLING UNIT, INCLUDING BASEMENT, WITHIN EACH SLEEPING ROOM AND
OUTSIDE SLEEPING AREAS.
Where to Locate the Required Smoke Alarms. The major threat from fire in a
dwelling unit occurs at night when everyone is asleep. Persons in sleeping areas can
be threatened by fires in the remainder of the unit; therefore, smoke alarms are best
located in each bedroom and between the bedroom areas and the rest of the unit as
shown in FIGURE 3.
FIGURE 2
FIGURE 3
FIGURE 4
3) On every level of a dwelling unit, including basements
4) On every level of a residential board and care occupancy (small facility),including
basements and excluding crawl spaces and unfinished attics
5) In the living area(s) of a guest suite
6) In the living area(s) of a residential board and care occupancy (small facility)
29.5.1.2 Where the area addressed in 29.5.1.1(2) is separated from the
adjacent living areas by a door, a smoke alarm shall be installed in the area between
the door and the sleeping room, and additional alarms shall be installed on the living
area side of the door as specified by 29.5.1.1 and 29.5.1.3.
29.5.1.3 In addition to the requirements of 29.5.1.1(1) through 29.5.1.1(3), where the
interior floor area for a given level of a dwelling unit, excluding garage areas, is
greater than 93m2(1000ft2), smoke alarms shall be installed per 29.5.1.3.1 and
29.5.1.3.2.
29.5.1.3.1 All points on the ceiling shall have a smoke alarm within a distance of 9.1m
(30ft) travel distance or shall have an equivalent of one smoke alarm per 46.5m2
(500ft2) is evaluated by dividing the total interior square footage of floor area per level
by 46.5m2(500ft2).
29.5.1.3.2 Where dwelling units include great rooms or vaulted/cathedral ceilings
extending over multiple floors, smoke alarms located on the upper floor that are
intended to protect the aforementioned area shall be permitted to be considered as
part of the lower floor(s) protection scheme used to meet the requirements of
29.5.1.3.1.
The installation of additional alarms of either the smoke, heat or CO type should
result in a higher degree of protection. Adding alarms to rooms that are normally
closed off from the required alarms increases the escape time because the fire does
not need to build to the higher level necessary to force smoke out of the closed room
to the required alarms. As a consequence, it is recommended that the householder
consider the installation of additional fire protection devices.
However, it should be understood that NFPA 72 does not require additional smoke
alarms over and above those called for in FIGURES 2, 3, 4 and 5 where required
smoke alarms are shown.
FIGURE 4: IN DWELLING UNITS WITH MORE THAN ONE SLEEPING AREA, A
SMO E ALARM MUST BE PROVIDED TO PROTECT EACH SLEEPING AREA IN
ADDITION TO SMO E ALARMS REQUIRED IN BEDROOMS.
FIGURE 5
FIGURE 5: A SMO E ALARM MUST BE LOCATED ON EACH LEVEL IN ADDITION
TO EACH BEDROOM.
IMPORTANT CONSIDERATION
NFPA 72, 2013 Edition, Chapter 29, Section 29.8.1.4(5)(b) states: “Smoke
alarms installed in one- and two-family dwellings shall not remain in service
longer than 10 years from the date of manufacture.” Smoke alarms should be
replaced for the following reasons:
wDust, dirt, and other environmental contaminants can affect your smoke and heat
alarm over a prolonged period.
wFast changing industry consensus standards and codes on all smoke and heat
alarms make it advisable to periodically upgrade your devices to maximize life
safety.
wAssurance that your smoke and heat alarm needs are kept abreast with the
constantly improving electronic technology.
wSmoke and heat alarms are recognized as one of the lowest cost ways to protect
dwelling inhabitants against the danger of fire(s). It makes good common sense to
periodically replace and update your smoke alarm that contributes so much to life
safety.
MOUNTING LOCATION
This heat alarm can be mounted on a ceiling or wall with equal efficiency in either
location.
wCeiling location-heat alarm should be mounted at least 4 inches (100 mm) from a
wall.
wWall location-locate the top of the heat alarm not less than 4 inches (100 mm) or
more than 12 inches (300mm) from the ceiling.
FIGURE 6
FIGURE 6: RECOMMENDED HEAT ALARM MOUNTING LOCATIONS
The placement of the alarm is critical if maximum speed of fire detection is desired.
Thus, a logical location for a alarm is the center of the ceiling. At this location, the
alarm is closest to all areas of the room.

PLUG
HEAT
ALARM
BLK-120VAC
L1-220VAC 1
WHT-120VAC
L2-220VAC 11
RED / YEL 10
HOT
NEUT POWER
TANDEM
550-0158
Pg. HD-4
NOTICE: RED-YELLOW WIRE: THE RED-YELLOW WIRE FROM THE HEAT ALARM
IS FOR TANDEM CONNECTION ONLY. DO NOT USE, AND DO NOT REMOVE
INSULATION CAP UNLESS CONNECTING ANOTHER HEAT ALARM.
LOCATIONS TO AVOID
Placing heat alarms where they will not operate properly causes nuisance alarms.
To avoid nuisance alarms, do not place heat alarms:
wWhere temperatures are regularly below 40°F (4.44°C) or above 100°F
(37.78°C).
wIn air streams passing by kitchens. It is possible normal air currents can draw
cooking heat into the sensor of a unit near the kitchen. If you experience frequent
unwanted alarms from a unit near your kitchen, try relocating it. Do not install your
heat alarm over a stove or a range.
wIn dead air spaces at the top of a peaked roof or in the corners between
ceilings and walls. Dead air may prevent heat from reaching a alarm. See
FIGURES 1 and 6 for recommended mounting locations.
wNear fluorescent light fixtures. Electrical "noise" from nearby fluorescent light
fixtures may cause a nuisance alarm. Install alarms and fluorescent light on
separate electrical circuits
Never disconnect an AC alarm to silence a nuisance alarm.
Use a cold damp rag or sponge and apply to the heat sensor (silver disk) on the
face of the unit. The alarm will automatically turn off when the temperature of
the sensor falls below 135°F. Do not unnecessarily stand close to the alarm.
The sound produced by the alarm is loud because it is designed to awaken you
in an emergency. Prolonged exposure to the horn at a close distance may be
harmful to your hearing.
INSTALLATION OF HD135
New Construction: alarm head should not be installed until AFTER sanding, painting,
and other dust creating situations are finished and cleaned up.
MOUNTING OUTLET BOX
Use a 2" x 3" switch box or a 4" square or octagon junction box. Mount a box for each
alarm. If wall mounting is desired, be sure the box screws are oriented to upper right
and lower left corners. Be sure to use supplied Mounting Plate.
WIRING/GENERAL
1. Use ANSI/UL Listed cable with Class1 insulation.
2. Observe local code requirements. Use the box clamps to anchor cable to outlet
box.
3. Metal outlet boxes must be grounded to earth ground.
4. NOTICE: USE ONLY DURACELL® MN 1604 BATTERY WITH THE HD135
HEAT ALARM.
CAUTION: Turn off electricity to prevent SHOC and damage to alarm. Be sure the
power line to the alarm is not controlled by any on/off switch, or other type of switch,
other than a fuse or circuit breaker.
IMPORTANT: Insure that all fluorescent lighting fixtures are properly grounded.
NOTICE: THE WIRING TO BE USED SHALL BE IN ACCORDANCE WITH THE
PROVISIONS OF ARTICLE 300.3 (B) 210 OF THE NATIONAL ELECTRICAL CODE,
NFPA 70. WIRE INSTALLATION SHOULD BE PERFORMED ONLY BY A LICENSED
ELECTRICIAN.
WIRING ONE HEAT ALARM
1. Run a minimum of 16 gauge, 2-conductor cable, plus ground (3 wires) to the alarm
junction box from a power supply. Use ANSI/UL Listed Class 1 wire.
NOTICE: THE WIRING TO BE USED SHALL BE IN ACCORDANCE WITH THE
PROVISIONS OF ARTICLE 300.3(B) 210 OF THE NATIONAL ELECTRICAL CODE,
NFPA 70.
2. Make wire connections to the supplied plug-in connector as follows: black to
black, white to white, and connect the ground wire to the metal outlet box. 1. Run a minimum of 16 gauge, 3-conductor cable, plus ground (4 wires) to the first
alarm junction box from a power supply and between all alarms that are to be
tandem connected together. Use ANSI/UL Listed Class 1 wire.
2. Make wire connections to the supplied plug-in connector as follows: black to black,
white to white, 3rd conductor to the red/yellow wire. The red/yellow wire should be
stripped to make the connection. Connect ground wire between metal outlet
boxes.
NOTICE: TANDEM INTERCONNECTING MODELS
wDO NOT connect Gentex smoke or heat alarms to other manufacturers' smoke
alarms.
wAll units connected in tandem MUST get their power from the same circuit, that is,
all heat and/or smoke alarms in tandem must be controlled by the same fuse or
circuit breaker.
wAfter installation to verify proper working conditions all horns must sound in this
system.
CAUTION: Failure to observe any of the conditions set forth may cause system
malfunction and damage to the alarm.
WIRING TWO OR MORE HEAT ALARMS
Tandem Installation
NOTICE: ALL HEAT ALARMS IN A TANDEM INSTALLATION MUST BE
CONTROLLED BY THE SAME FUSE OR CIRCUIT BREA ER. OTHERWISE
TANDEM UNITS WILL NOT OPERATE. TANDEM UNITS WILL OPERATE IN THE
EVENT OF AC POWER FAILURE IF BATTERY IS CONNECTED TO THE HEAT
ALARM.
LIMITATIONS: A maximum of (12) smoke alarms (9123, 9123H, 9123T, 9223,
9223H, 9223T, GN-300, S1209 or S1209F) may be tandem connected together. A
total of (12) smoke alarms and (6) heat alarms may be tandem
interconnected together. Do not exceed 125 feet between each alarm. Do not exceed
1125 feet between first and last alarm.
A maximum of six (6) smoke alarms with relay options (9123F, 9123HF, 9123TF,
9223F, 9223HF, 9223TF or 7139CS) may be tandem interconnected. If a HD135 is
interconnected, a maximum of (5) 9123F, 9223F, S1209F or 7139CS and (3) HD135
units may be tandem interconnected.
Wire used for interconnecting shall be in accordance with the latest edition of Article
760 of the National Electrical Code (NEC) and NFPA 70, and must not exceed a
resistance of 10 ohms.
AC
POWER
ELECTRICAL
BOX
HEAT
ALARM
HEAT
ALARM
QUICK DISCONNECT
TYPE PLUG
ELECTRICAL
BOX
HOT / BLACK
(220VAC L1)
NEUTRAL / WHITE
(220VAC L2)
TANDEM WIRE
RED / YELLOW

TESTING
Use a hair dryer and direct hot air towards the silver disk on the face of the alarm or
use a portable soldering iron and place it against the heat sensor.
wNever use an open flame of any kind to test your heat alarm. You may ignite
and damage the alarm as well as your home.
wHeat alarms are not to be used with alarm guards unless the combination has
been evaluated and found suitable for that purpose.
TO RETURN A HEAT ALARM
Should you experience problems with your heat alarm, proceed as follows:
1. Turn off electrical power to the heat alarm.
2. Twist the heat alarm counter-clockwise to remove it from its mounting plate.
3. Unplug the connector from the back of the heat alarm. Do not remove the wire
connection; leave the connector for your replacement heat alarm.
4. Remove battery from heat alarm. Do not ship heat alarm with battery still attached
to battery clip.
5. Carefully pack (the manufacturer cannot be responsible for consequential damage)
and return to the manufacturer. Include complete details as to exact nature of
difficulties being experienced and date of installation.
6. Return to: Gentex Corporation, 10985 Chicago Drive, Zeeland, Michigan, 49464.
Prior to returning, call Gentex at 1-800-436-8391 or e-mail [email protected]
to obtain a RMA Number from our Customer Service Department.
3. Place the heat alarm up to the mounting plate, rotating it clockwise until alarm
firmly snap locks into place. eep the heat alarm parallel to the mounting plate so
upper and lower tabs on the plate seat correctly into the heat alarm.
ROTATE ALARM TO
UPRIGHT POSITION
WOR CONNECTOR WIRES
BAC THROUGH HOLE IN
ADAPTER PLATE
550-0158
Pg. HD-5
BATTERY INSTALLATION
1. Remove heat alarm from mounting plate by turning counter-clockwise.
2. Remove AC power connector and unsnap power leads from the top of the old
battery. Snap new battery onto snaps and reinsert battery through hole in the back
of the alarm. CAUTION: Units with battery back-up will not provide power or
transmit an alarm to AC only units in the event of an AC power failure. All battery
back-up units in tandem with good batteries will operate normally during an AC
power failure.
3. Use only Duracell® MN 1604 battery with the HD135 Series heat alarm.
CAUTION: Units with battery back-up will not provide power or transmit an alarm to AC
only units in the event of an AC power failure. All battery back-up units in tandem, with
good batteries, will operate normally during an AC power failure.
MOUNTING: PLATE & HEAT ALARM
1. Lace the connector through the provided mounting plate and secure the plate to
the junction box.
2. Plug the wire connector into the heat alarm base.

550-0158-HAC
Important otice:
These materials have been prepared by Gentex Corporation ("Gentex") for informational purposes only, are necessarily summary, and are not purported to serve as legal advice and should not be used
as such. Gentex makes no representations and warranties, express or implied, that these materials are complete and accurate, up-to-date, or in compliance with all relevant local, state and federal
laws, regulations and rules. The materials do not address all legal considerations as there is inevitable uncertainty regarding interpretation of laws, regulations and rules and the application of such
laws, regulations and rules to particular fact patterns. Each person's activities can differently affect the obligations that exist under applicable laws, regulations or rules. Therefore, these materials
should be used only for informational purposes and should not be used as a substitute for seeking professional legal advice. Gentex will not be responsible for any action or failure to act in reliance
upon the information contained in this material.
GE TEX CORPORATIO
10985 CHICAGO DRIVE, ZEELA D, MI 49464
PHO E: 1-800-436-8391
www.gentex.com
Manual Issue Date:
06/01/98
LIMITED WARRANTY
For a period of 12 months from the date of purchase or a maximum of 18 months from the date of manufacture (or as long as required by applicable law), Gentex warrants to you the original
purchaser that your appliance will be free from defects in workmanship and materials under normal use and service.
This warranty oes not apply an is voi if amage or failure is cause by: acci ent, abuse, misuse, abnormal use, faulty installation, liqui contact, fire, earthquake or other external
cause; operating the appliance outsi e Gentex’s publishe gui elines; or service, alteration, maintenance or repairs performe by anyone other than Gentex. This warranty also oes not
apply to: consumable parts, such as batteries; cosmetic amage, inclu ing but not limite to scratches or ents; efects cause by normal wear an tear or otherwise ue to the normal
aging of the appliance, or if any serial number has been remove or eface from the appliance.
TO THE EXTE T PERMITTED BY LAW, THIS WARRA TY A D THE REMEDIES SET FORTH HEREI ARE EXCLUSIVE A D I LIEU OF ALL OTHER WARRA TIES, REMEDIES A D
CO DITIO S, WHETHER ORAL, WRITTE , STATUTORY, EXPRESS OR IMPLIED. GE TEX DISCLAIMS ALL STATUTORY A D IMPLIED WARRA TIES, I CLUDI G WITHOUT LIMITATIO ,
WARRA TIES OF MERCHA TABILITY A D FIT ESS FOR A PARTICULAR PURPOSE A D WARRA TIES AGAI ST HIDDE OR LATE T DEFECTS TO THE EXTE T PERMITTED BY LAW. TO
THE EXTE T SUCH WARRA TIES CA OT BE DISCLAIMED, SUCH IMPLIED WARRA TIES SHALL APPLY O LY FOR THE WARRA TY PERIOD SPECIFIED ABOVE. PLEASE OTE THAT
SOME STATES (COU TRIES A D PROVI CES) DO OT ALLOW LIMITATIO O HOW LO G A IMPLIED WARRA TY (OR CO DITIO ) LASTS. SO THE ABOVE LIMITATIO MAY OT
APPLY TO YOU.
EXCEPT AS PROVIDED I THIS WARRA TY A D TO THE EXTE T PERMITTED BY LAW, GE TEX WILL OT BE LIABLE FOR A Y DIRECT, SPECIAL, I CIDE TAL OR CO SEQUE TIAL
DAMAGES RESULTI G FROM A Y BREACH OF WARRA TY OR CO DITIO , OR ARISI G I CO ECTIO WITH THE SALE, USE OR REPAIR OF THE APPLIA CE, OR U DER A Y OTHER
LEGAL THEORY, I CLUDI G BUT OT LIMITED TO LOSS OF USE, LOSS OF REVE UE, LOSS OF ACTUAL OR A TICIPATED PROFITS, LOSS OF THE USE OF MO EY, LOSS OF BUSI ESS,
LOSS OF OPPORTU ITY, LOSS OF GOODWILL, A D LOSS OF REPUTATIO . THE MAXIMUM LIABILITY OF GE TEX SHALL OT I A Y CASE EXCEED THE PURCHASE PRICE PAID BY
YOU FOR THE APPLIA CE. PLEASE OTE THAT SOME STATES (COU TRIES A D PROVI CES) DO OT ALLOW THE EXCLUSIO OR LIMITATIO OF I CIDE TAL OR CO SEQUE TIAL
DAMAGES, SO THE ABOVE LIMITATIO OR EXCLUSIO MAY OT APPLY TO YOU.
If a defect in workmanship or materials causes your appliance to become inoperable within the warranty period, you must return the appliance to Gentex postage prepaid to: Gentex Corporation,
10985 Chicago Dr., Zeeland MI 49464. You must prove to the satisfaction of Gentex the date of purchase of your appliance. You must also enclose a return address. Warranty service may only be
performed by Gentex personnel at Gentex's facilities in Zeeland, Michigan. You must also pack the appliance to minimize the risk of it being damaged in transit. If we receive an appliance in a
damaged condition as the result of shipping, we will notify you and you must seek a claim with the shipper.
If you submit a vali claim to Gentex uring the warranty perio , Gentex will, at its option, repair your appliance or furnish you with a new or rebuilt appliance without charge to you
except for postage require to return the appliance to us. Gentex will not reimburse you for repairs or replacement parts provi e by other parties. Your repaire or replacement
appliance will be returne to you free of charge an it will be covere un er the warranty for the balance of the warranty perio , if any. When a pro uct or part is replace , any
replacement item becomes your property an the replace item becomes property of Gentex. For a itional warranty an pro uct information go to www.gentex.com.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE (OR BY COUNTRY OR PROVINCE). BY
THIS WARRANTY, GENTEX DOES NOT LIMIT OR EXCLUDE YOUR RIGHTS EXCEPT AS ALLOWED BY LAW. TO FULLY UNDERSTAND YOUR RIGHTS, YOU SHOULD CONSULT THE LAWS
OF YOUR COUNTRY, PROVINCE OR STATE.