Firex ADH User Manual

SPECIFICATIONS

Model Number: ADH
Electrical Rating: 120 VAC, 60 HZ, 80mA, max, 9 volt battery back-up
Interconnect Quantity: 12 units maximum
U.L. temperature rating: 135°F (58°C) fixed temperature
U.L. Maximum ambient
temperature at unit: 100°F
Operating temperature: -10°F to 158°F (-23°C to 70°C)
U.L. Recommended coverage: 2500 square feet (see Note A)
U.L. Recommended spacing: 50 feet
Maximum distance from wall: 25 feet (see Note B)

HEAT ALARM FEATURES

•

This heat alarm is powered by 120V AC and a 9-volt battery
back-up source. AC/DC heat alarms offer added protection in the
event of a power failure or a drained battery.

•

Unique power connector prevents interconnection with
incompatible heat alarms, smoke alarms, or security systems.

•

This heat alarm is interconnectable to a maximum of 12 Firex
devices. It is compatible with Firex smoke alarm models AD,
ADC, and FADC. It can be interconnected with Firex heat alarm
model ADH (6 maximum).

•

Optional tamper-resist feature.

•

Unique “battery missing” lockout – heat alarm will not attach to
the mounting bracket if a battery is not in the battery pocket.

•

Improperly connected or weak battery signal – heat alarm will
sound a short beep once a minute if the battery is weak or
improperly connected.

•

Green LED indicates that the heat alarm is receiving AC power,
working under normal operation, or in alarm.

•

Loud alarm horn—85 decibels at 10 feet—sounds to alert you
to an emergency.

•

Test button checks heat alarm operation.

IMPORTANT SAFETY INFORMATION

PLEASE READ AND SAVE

THESE INSTRUCTIONS

WARNING

•

This heat alarm requires constant 120-volt, AC power AND
a working 9-volt battery to operate properly. This heat alarm

WILL NOT work if AC power is not connected, has failed, or
has been interrupted for any reason AND if the battery is
removed, drained or improperly connected. DO NOT use any
other kind of battery except as specified in this manual. DO
NOT connect this heat alarm to any smoke alarm, heat alarm,
or auxiliary device, except those listed in this manual.

•

The Push-to-Test button accurately tests all heat alarm
functions. For temperatures that are below -10°F use a hand

held hair dryer and blow hot air into heat alarm to test. DO
NOT use any other test method. Test heat alarm weekly to

ensure proper operation.

•

This heat alarm should be installed only by a licensed, qual­ified electrician. Observe and follow all local and national elec-

trical and building codes for installation.

!

120V AC
Heat Alarm

with 9V

Battery
Back-up

110-609F

MODEL ADH

PLEASE READ AND SAVE
THIS MANUAL

Installer: Please leave this
manual with the product.

WARNING! Heat alarms are not life safety devices and are not designed to
detect smoke or fire. Heat alarms detect temperatures of 135°

F or greater,

and are intended to be used as supplements to smoke alarms by providing
early warning. See the IMPORTANT SAFETY INFORMATION section of this
manual.

Printed information describing proper installation, operation, testing,
maintenance, evacuation planning, and repair service is provided with
this equipment in this manual.

NOTE A: Maximum alarm coverage has been determined by UL to provide detection

time equal to sprinkler devices spaced at 10-ft intervals (100 square foot area) on a
smooth ceiling 15 ft 9 in. high. Higher ceilings can adversely affect detection time. In
some instances, earlier detection may be obtained by reducing the distance between
detectors. See the latest edition of the NFPA 72E, Automatic Fire Detectors.
NOTE B: Maximum distance is measured from any wall partition or ceiling projection
extending down more than 12 inches.

•

This heat alarm IS NOT designed to be the PRIMARY
protection for buildings that require complete fire alarm
systems. Buildings of thistype includes hotels, motels, dormito-

ries, hospitals, nursing homes, and group homes. This is true
even if they were once single family homes. However, this

heat alarm MAY be used inside individual rooms as
SUPPLEMENTAL protection.

•

Heat alarms should be interconnected with smoke alarms in
order to provide early warning of heat, smoke or fire. In addi-

tion, smoke alarms should be installed in every bedroom and on
every level of the home.

•

Interconnected heat alarms and smoke alarms offer maxi­mum protection. The National Fire Protection Agency (NFPA)

recommends interconnecting heat alarms and smoke alarms so
that when one unit senses heat, smoke, or fire and sounds its
alarm, all others will sound as well. Do not interconnect heat
alarms and smoke alarms from one individual living unit to
another. Do not connect this heat alarm to any other type of
alarm (except those listed in this manual) or auxiliary device.

•

Heat alarms may not alert every household member every
time. There may be limiting circumstances where a household

member may not hear the alarm (e.g., outdoor or indoor noise,
sound sleepers, drug or alcohol usage, the hard of hearing,
etc.). If you suspect that this smoke alarm may not alert a
household member, install and maintain specialty smoke
alarms. Current studies have shown smoke alarms may not
awaken 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 awakened
by the alarm sound, or to those who may be incapable of safely
evacuating the area unassisted.

•

This heat alarm can only sound its alarm when it detects
temperatures of 135°F or greater. Heat alarms do not detect

smoke, flame, or gas. In some fires, hazardous levels of toxic
chemicals and smoke can build up before a heat alarm will oper­ate. Temperatures may not reach 135°F to activate the heat
alarm QUICKLY ENOUGH to ensure safe escape.

•

Heat alarms should be used to supplement smoke alarms.

This alarm may not always detect slow, smoldering, low heat pro­ducing fires, and fires that are in a different room than the heat
alarm. In addition, heat from a nearby fire may bypass the heat
alarm.

•

Heat alarms have limitations. This heat alarm is not foolproof
and is not warranted to protect lives or property from fire. Heat
alarms are not a substitute for insurance. Homeowners and renters
should insure their life and property. In addition, it is possible for
the heat alarm to fail at any time.

HEAT ALARM PLACEMENT

Heat alarms give an audible warning when the temperature at the
alarm reaches 135°F. Heat alarms are ideal for kitchens, garages,
basements, boilers rooms, attics, and other areas where there are
normally high levels of fumes, smoke, or dust which are also areas
where smoke alarms should not be installed due to risk of false
nuisance alarms.

The
National Fire Protection
Association’s (NFPA) mini­mum requirement, as stat­ed in Standard 72,
Chapter 2, reads as fol­lows:

“2-2.1.1.1 Smoke detec­tors shall be installed out­side of each separate
sleeping area in the imme­diate vicinity of the bed­rooms and on each
additional story of the fam­ily living unit including
basements and excluding
crawl spaces and unfin­ished attics. In new con­struction a heat detector
also shall be installed in
each sleeping room.”

BEDROOM BEDROOM

FINISHED ATTIC

UNFINISHED ATTIC

BASEMENT

UTILITY

ROOM

LIVING
ROOM

KITCHEN

GARAGE

HALL

SINGLE STORY RESIDENCE/ APARTMENT/ MOBILE HOME

BEDROOMKITCHENDINING ROOM

LIVING ROOM

GARAGE

BEDROOM

BEDROOM

EXISTING

HOMES

TWO STORY RESIDENCE

“11.5.1.1 Where required by applicable laws, codes, or standards

for the specified occupancy, approved single- and multiple-sta­tion smoke alarms shall be installed as follows:

1. In all sleeping rooms Exception: Smoke alarms shall not be

required in sleeping rooms in existing one- and two-family
swelling units.

2. Outside each separate sleeping area, in the immediate
vicinity of the sleeping rooms.

3. On each level of the dwelling unit, including basements

Exception: In existing one- and two-family dwelling units,
approved smoke alarms powered by batteries shall be per­mitted.”

In addition, the California State Fire Marshal states: “Early
warning fire detection is best achieved by the installation of fire
detection equipment in all rooms and areas of the household
as follows: A heat detector installed in each separate sleeping
area (in the vicinity, but outside the bedrooms) and heat or
smoke alarms in the living rooms, dining rooms, bedrooms,
kitchens, hallways, attics, furnace rooms, closets, utility and
storage rooms, basements and attached garages.”

HEAT ALARM LOCATIONS

•

Install a heat alarm as close to the center of the ceiling as
possible. If this is not practical, mount no closer than 4 inches
from a wall or corner.

•

If ceiling mounting is not practical or the mounting surface
becomes considerably warmer or cooler than the room (such
as a poorly insulated ceiling, below an unfinished attic or an
exterior wall) and if local codes allow, install heat alarms on
walls, between 4 and 12 inches from ceiling/wall intersections.

•

Install heat alarms on peaked, cathedral,
or gabled ceilings 3 feet from the highest
point (measured horizontally).

•

In a room with open joists or beams, all
ceiling mounted heat alarms shall be
located on the bottom of joists or beams
– not in joist channels.

•

Heat alarms installed on an open­joisted ceiling shall have their smooth
ceiling spacing reduced to no more
than half of the listed spacing when
measured at right angles to solid joist.

24"

STUB WALL

SOFFIT

4 IN

(0.1m )

4 IN

(0.1m )

MINIMUM

12 IN

(0.3 m )

MAXIMUM

CEILING

SIDE

WALL

ACCEPTABLE HERE

NEVER HERE

TOP OF DETECTOR
ACCEPTABLE HERE

KEY:

NFPA minimum REQUIRED smoke
alarm locations

NFPA RECOMMENDED additional
smoke alarm locations

Recommended heat alarm locations

NEW
CONSTRUCTION
HOMES

BEDROOM BEDROOM

FINISHED

ATTIC

UNFINISHED

ATTIC

BASEMENT

UTILITY

ROOM

LIVING
ROOM

KITCHEN

GARAGE

HALL

SINGLE STORY RESIDENCE/ APARTMENT/ MOBILE HOME

BEDROOMKITCHENDINING ROOM

LIVING ROOM

BEDROOM

BEDROOM

TWO STORY RESIDENCE

GARAGE

50 ft. (15 m)

25 ft. (7.6 m)

25 ft.

(7.6 m)

12

1/2 ft.

(3.8 m)

25 ft.

(7.6 m)

121/2 ft.
(3.8 m)

25 ft.

(7.6 m)

ACCEPTABLE IN

THIS AREA

PEAKED CEILING

HOW TO INSTALL

THIS HEAT ALARM

DANGER: ELECTRICAL SHOCK HAZARD. Turn off

power at the main fuse box or circuit
breaker by removing the fuse or
switching the circuit breaker to the
OFF position.

WARNING: This heat alarm should be installed

only by a qualified electrician. Heat
alarm wiring to be used shall be in
accordance with the provisions of
Article 210 and 760 of the National
Electrical Code, ANSI/NFPA 70, and any
local codes that may apply.
Interconnect wire location shall be in
accordance with NEC Article 300.3b.

THIS HEAT ALARM SHOULD BE INSTALLED IN ACCORDANCE
WITH THE NATIONAL FIRE PROTECTION ASSOCIATION’S
STANDARD 72 (National Fire Protection Association,
Batterymarch Park, Quincy, MA 02269).

Install heat alarm on a 4-inch octa­gon or single gang junction box only.

1. From back of heat alarm, remove
mounting plate. (To deter a person
from tampering with or removing
the unit from the trim ring once
installed, you may wish to later
engage tamper-resist feature. To
do this, twist out and set aside
one of the pins molded into plate.
Both pins are exactly the same.)

2. Align recessed slots on plate with mounting holes of a 4-inch
octagon or single gang junction box.

3. Gently pull household wires through center hole of plate.

4. Secure plate to junction box with mounting screws.

5. With a small wire connector, connect white wire from connec­tor plug to white household wire.

6. Connect black wire from connector plug to black household wire.

7. If interconnection is desired, connect yellow wire from connector
to interconnect wire between heat alarms and/or smoke alarm.
See INTERCONNECTING HEAT ALARMS.

NOTE: If this will be a single-station heat alarm, cover yellow wire

with electrical tape and tuck into junction box.

8. Lift open battery pocket door.

9. Connect new 9-volt battery to battery connector inside battery
pocket. BE SURE BATTERY IS
SECURELY CONNECTED. Heat
alarm may beep briefly when battery
is installed.

10. Close battery pocket door, snap­ping it into place. (For tamper­resist, use long-nosed pliers to
remove thin plastic from notch
on heat alarm edge.)

11. Attach connector plug to pins on
back of heat alarm. Plug will only fit
one way and will snap into place.

DO NOT install heat alarms:

•

In areas with high humidity, like bathrooms or areas near dish­washers or washing machines. Install at least 10 feet (3 meters)
away from these areas, if possible.

•

Near air returns, heating and cooling supply vents, fans, deco­rative objects, window molding etc. that may prevent heat from
entering the unit thus interrupting its alarm.

•

In rooms where temperatures may fall below -10°F (23°C) or
rise above 100°F (38°C).

•

Near fluorescent lights - electrical noise and flickering may
affect the alarm’s operations.

!

!

Remove thin plastic

from notch

Mobile home installation

For mobile homes built after 1978, install heat alarms as directed
above. For mobile homes built before 1978, install heat alarms on
an inside wall between 4 and 12 inches from the ceiling. (Older
mobile homes have little or no insulation in the ceiling which may
affect the heat alarm’s ability to detect heat properly.) This is
especially important if the ceiling is unusually hot or cold.

12. Gently tug connector to be
sure it is attached securely.

13. Position heat alarm to
mounting plate and turn
clockwise to lock into
place. To engage tamper­resist feature, insert pin into notch on edge of heat alarm after
alarm is properly positioned in base. See instruction #10 on
the previous page. NOTE: The tamper-resist pin must be
removed to change the batteries and replaced when done.

NOTE: Heat alarm will not mount to plate if battery is not installed.

14. Turn on power at main fuse box or circuit breaker.

15. Test heat alarm. See TESTING THE HEAT ALARM.

INTERCONNECTING HEAT ALARMS

•

This heat alarm is interconnectable to a maximum of 12 Firex
devices. It is compatible with Firex smoke alarm models AD,
ADC, and FADC. It can be interconnected with Firex heat alarm
model ADH (6 maximum).

•

Connect heat alarms to a single AC branch circuit. If local codes
do not permit, be sure the neutral wire is common to both phases.

RED AND GREEN LED INDICATORS

This heat alarm features separate red and green LED indicators.
The LEDs indicate the following:

GREEN LED

Constant on — AC power is present.
OFF — AC power is not present.

RED LED can be seen through the Push-to-Test button.
Blinks once a minute — indicates presence of a working battery.
Blinks once a second — heat alarm senses heat and simultane-

ously sounds an audible alarm.
OFF — DC power is not present.
OFF and unit is sounding alarm — An interconnected smoke/heat

alarm in the network has sensed smoke or heat.

TESTING THE HEAT ALARM

WARNING

•

Test each heat alarm and smoke alarm in the network to be
sure it is installed correctly and operating properly.

•

Stand at arm’s length from the heat alarm when testing. The
alarm horn is loud to alert you to an emergency and can be
harmful to hearing.

•

Test heat alarms weekly and upon returning from vacation or
when no one has been in the household for several days.

Test all heat alarms weekly by doing the following:

1. Observe the green LED. A constant green light indicates the

heat alarm is receiving 120V AC power.

2. Firmly depress the Push-to-Test button for at least five (5) sec-

onds. The heat alarm will sound a loud beep about 4 times a
second. The alarm may sound for up to 10 seconds after
releasing the Push-to-Test button. NOTE: If heat alarms are
interconnected, all heat alarms should sound an alarm within
three seconds after any test button is pushed and the tested
heat alarm sounds.

3. If heat alarm does not sound, turn off power at main fuse box

or circuit breaker and check wiring. Retest heat alarm.

REPLACE OR RETURN THE ALARM IF THE PUSH-TO-TEST
FUNCTION DOES NOT OPERATE PROPERLY AFTER FOL­LOWING THE PROCEDURES OUTLINED ABOVE (see REPAIR
on page 6).

WHITE WHITE WHITE

YELLOW YELLOW

BLACK BLACK BLACK

TO NEUTRAL

TO 120 VAC

Insert pin here

!

DANGER: If alarm horn sounds, and heat alarm is not
being tested, the heat alarm is sensing 135° F or greater
temperature. THE SOUND OF THE ALARM HORN REQUIRES
YOUR IMMEDIATE ATTENTION AND ACTION.

MAINTENANCE AND CLEANING

In addition to weekly testing, this heat alarm requires yearly battery
replacement and periodic cleaning to remove dust, dirt, and debris.

DANGER: ELECTRICAL SHOCK HAZARD. Turn off

power at main service panel by removing
fuse or switching appropriate circuit
breaker to OFF position before replacing
battery or cleaning heat alarm.

BATTERY REPLACEMENT

Always turn off power to heat alarm before replacing battery.
Replace battery at least once a year or immediately when the low
battery signal sounds once a minute, even though the heat alarm
is receiving AC power. Batteries should be replaced regularly,
even when the heat alarm is receiving AC power

Use only the following batteries as replacements in this heat alarm:

Eveready 522 or 1222, or Duracell MN 1604.

WARNING: DO NOT USE ANY OTHER TYPE OF

BATTERY, EXCEPT AS SPECIFIED IN
THIS MANUAL. DO NOT USE RECHARGE­ABLE BATTERIES.

1. Turn off power to heat alarm at main service panel.

2. Turn heat alarm counterclockwise to detach from mounting plate.

3. Gently pull down heat alarm. Be careful not to separate wire

connections.

4. Pull out power plug from back of heat alarm.

5. From back of heat alarm, lift tab to open battery pocket door.

6. Remove battery from pocket. Disconnect and discard drained

battery from battery connector.

7. Connect a fresh, 9-volt battery to connector. The battery will

fit only one way. Be sure battery connector is securely
attached to battery terminals.

8. Place battery into battery pocket.

9. Close battery pocket door. Push down until it snaps into

place.

10. Replace connector plug. Connector will snap into place. Gently

tug connector to be sure it is attached properly.

11. Reattach heat alarm to mounting plate by turning heat alarm

clockwise until it snaps into plate.

12. Turn on power and test heat alarm using Push-to-Test button.

CLEANING

Clean the heat alarm at least once a month to remove dust,
dirt, or debris. Always turn off power to heat alarm before
cleaning.

•

Using the soft brush or wand attachment to a vacuum cleaner,

vacuum all sides and cover of heat alarm. Be sure all the vents
are free of debris.

•

If necessary, turn off power and use a damp cloth to clean heat

alarm cover.

IMPORTANT: Do not attempt to remove the cover or clean inside

the heat alarm. THIS WILL VOID YOUR WARRANTY.

REPAIR

CAUTION: Do not attempt to repair this heat alarm.

Doing so will void your warranty.

If heat alarm is not operating properly, see TROUBLESHOOTING.
If necessary, and if still under warranty, return heat alarm to
Invensys Controls Americas. Pack it in a well-padded carton, ship­ping prepaid with a note describing the nature of the problem and
proof of purchase date, to:

Invensys Controls Americas

Product Service Department
28C Leigh Fisher Blvd.
El Paso, TX 79906

If the heat alarm is no longer under warranty, have a licensed
electrician replace the heat alarm immediately with a comparable
Firex brand heat alarm.

PRACTICE FIRE SAFETY

If the heat alarm sounds its alarm horn, and you have not pushed
the test button, it is warning of a dangerous situation.
Your immediate response is necessary. To prepare for such
occurrences, develop family escape plans, discuss them with
ALL household members, and practice them regularly.

!

!

!

!

•

Expose everyone to the sound of the smoke alarm and heat
alarm and explain what the sounds means.

•

Determine TWO exits from each room and an escape route to
the outside from each exit.

•

Teach all household members to touch the door and use an
alternate exit if the door is hot. INSTRUCT THEM NOT TO
OPEN THE DOOR IF THE DOOR IS HOT.

•

Teach household members to crawl along the floor to stay
below dangerous smoke, fumes, and gases.

•

Determine a safe meeting place for all members outside the
building.

WHAT TO DO IN CASE OF A FIRE

1. Don’t panic; stay calm.

2. Leave the building as quickly as possible. Touch doors to

feel if they are hot before opening them. Use an alternate
exit if necessary. Crawl along the floor, and DO NOT stop
to collect anything.

3. Meet at a prearranged meeting place outside the building.

4. Call the fire department from OUTSIDE the building.

5. DO NOT GO BACK INSIDE A BURNING BUILDING. Wait for

the fire department to arrive.

These guidelines will assist you in the event of a fire. However, to
reduce the chance that fires will start, practice fire safety rules
and prevent hazardous situations.

TROUBLESHOOTING

DANGER: Always turn off power at main fuse box

or circuit breaker before taking trouble­shooting action.

WARNING: DO NOT disconnect battery or AC

power to quiet an unwanted alarm.
This will remove your protection. Fan
the air or open a window to remove
heat or dust.

PROBLEM SOLUTION

Heat alarm does not 1. Check that AC power is
sound when tested. turned on.

2. Turn off power. Remove heat
alarm from mounting plate
mounting plate and:
a. check that connector

plug is securely attached.

b. check that battery is

properly attached to
connector.

3. Clean heat alarm.

Heat alarm beeps about Turn off power and replace battery
once a minute. See “Battery Replacement” in the

MAINTENANCE AND
CLEANING section.

Heat alarm sounds 1. Clean heat alarm.
unwanted alarms. See “Cleaning” in the MAINTE-

NANCE AND
CLEANING section.

2. Hire an electrician to
move heat alarm to a new
location. See HEAT ALARM
PLACEMENT.

Interconnected heat 1. Press and hold test button
alarms do not sound when for at least three seconds after
system is tested. after the first unit sounds.

2. Turn off main power or circuit
breaker and check the inter­connect wiring. See INTER­CONNECTING HEAT ALARMS
section of this manual.

NOTE: Push test button for
at least five (5) seconds
while testing!

!

!

REPLACE OR RETURN THE ALARM IF THE PUSH-TO-TEST
FUNCTION DOES NOT OPERATE PROPERLY AFTER FOLLOW­ING THE PROCEDURES OUTLINED ABOVE (see REPAIR
on page 6).

WARRANTY INFORMATION

Invensys Controls Americas warrants to the original consumer purchaser each new heat

alarm, excluding battery, to be free from defects in material and workmanship under nor-

mal use and service for a period of five (5) years from the date of purchase. Invensys

Controls Americas agrees to repair or replace, at its option, any defective heat alarm pro-

vided that it is returned with postage prepaid and with proof of purchase date to Invensys

Controls Americas. This warranty does not cover damage resulting from accident, misuse

or abuse, or lack of reasonable care of the product. This warranty is in lieu of all other

express warranties, obligations or liabilities. THE IMPLIED WARRANTIES OF MER-

CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO A PERIOD

OF FIVE (5) YEARS FROM PURCHASE DATE. Some states do not allow limitations on how

long an implied warranty lasts, so the above limitations may not apply to you. IN NO CASE

SHALL INVENSYS CONTROLS AMERICAS BE LIABLE FOR ANY INCIDENTAL OR CONSE-

QUENTIAL DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY, EXPRESS OR

IMPLIED, WHATSOEVER, EVEN IF THE LOSS OR DAMAGE IS CAUSED BY ITS NEGLI-

GENCE OR FAULT. Some states do not allow the exclusion or limitation of incidental or con-

sequential damages, so the above limitation or exclusion may not apply to you. This

warranty gives you specific legal rights, and you may also have other legal rights which

vary from state to state.

191 E. North Avenue
Carol Stream, Illinois 60188 USA
www.invensyscontrols.com
©2006 Invensys Controls 110-609F