Universal Security Instruments Smoke Alarm USI 2430 User Manual

Visit Us on the Web! www.SmokeAlarms.com  
MODEL USI-2430  
HEAT ALARM  
120 VAC WITH  
9V BATTERY BACKUP  
OWNER'S MANUAL  
PLEASE READ AND SAVE!  
Installer: Please leave this manual with the product.  
WHAT YOU SHOULD KNOW ABOUT HEAT ALARMS  
Heat alarms are not life safety devices and are not designed to detect  
smoke or fire. They are intended to detect temperatures of 135oF to  
provide an additional source of information that is supplemental to  
smoke alarms to increase the probability that an early warning will  
be provided to increase chances of life and property safety.  
FEATURES  
This heat alarm is powered by 120 VAC and a 9 Volt battery backup source. AC/  
DC heat alarms offer added protection in the event of a power failure or a drained  
battery.  
This heat alarm can be interconnected with as many as 12 other USI alarms  
(Models USI-1103, USI-1203, USI-1204, USI-1208, USI-1209, USI-1213, USI-3204,  
USI-5204 and 6 other units which may be a combination of Carbon Monoxide  
Alarms such as USI-7385, USI-7390, USI-7485, USI-7490 and USI-7795, USI-  
2430 Heat Alarms or USI-960 Relay Modules, for a total of not more than 18  
interconnected devices.  
This heat alarm will not attach to the mounting ring if a battery is not in the battery  
chamber.  
This heat alarm will sound a short beep about once a minute if the battery is weak  
or improperly connected.  
The green LED indicates that the heat alarm is receiving AC power and is working  
under normal operation.  
A loud 85 decibels at 10 feet alarm horn will sound to alert you of an emergency.  
The test button checks heat alarm operation.  
SPECIFICATIONS  
Model Number  
Electrical Rating  
HD-130  
120 VAC, 60 Hz, 50 mA maximum, 9 Volt  
battery backup  
Interconnect  
18 units maximum  
Interconnect with  
Upto5USI heat alarms or relay modules and  
up to 12 USI smoke alarm models  
ULTemperature Rating  
135oF (57oC) fixed temperature  
100oF  
ULMaximumAmbient Temperature  
at Unit  
Operating Temperature  
-10oF to 158oF (-23oC to 70oC)  
2500 square feet  
50 feet  
UL Recommended Coverage  
UL Recommended Spacing  
Maximum Distance from Wall  
25 feet  
 
• This heat alarm can only sound its alarm when it detects temperatures of 135o F or  
greater. Heat alarms do not sense smoke, fire 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 135o F to activate the heat alarm quickly enough to  
ensure safe escape.  
• Heat alarms have limitations. This heat alarm is not foolproof and is not warranted  
to protect lives or property. Heat alarms are not a substitute for insurance.  
Homeowners and renters should insure their lives 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 135o  
F. Heat alarms are ideal for kitchens, garages, basements, boiler 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.  
EXISTING HOMES  
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NATIONAL FIRE PROTECTION ASSOCIATION REQUIRED PROTECTION  
For your information, the National Fire Protection Association's Standard 72, reads as follows:  
“11.5.1 One- and Two-Family Dwelling Units. 11.5.1.1 Smoke Detection. 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 dwelling units. (2) Outside of each separate sleeping area, in  
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 are permitted.  
“A.11.8.3Are More Smoke Detectors Desirable? The required number of smoke detectors  
might not provide reliable early warning protection for those areas separated by a door  
from the areas protected by the required smoke detectors. For this reason, it is  
recommended that the householder consider the use of additional smoke detectors for  
those areas for increased protection. The additional areas include the basement,  
bedrooms, dining room, furnace room, utility room, and hallways not protected by the  
required smoke detectors. The installation of smoke detectors in kitchens, attics  
(finished or unfinished), or garages is not normally recommended, as these locations  
occasionally experience conditions that can result in improper operation.”  
The equipment should be installed using wiring methods in accordance with the National Fire  
ProtectionAssociation’s Standard 72, Chapter 11. (National Fire ProtectionAssociation, Batterymarch  
Park, Quincy, MA 02269).  
THIS PRODUCT IS LISTED TO UL STANDARD FOR SAFETY,  
UL217 6TH, BY UNDERWRITERS LABORATORIES  
NEW CONSTRUCTION HOMES  
- 4 -  
 
HEAT ALARM LOCATIONS  
Install a heat alarm as close to the center of the ceiling as possible. If the center is not  
practical, mount the heat alarm no closer than 4 inches from a wall or corner.  
If the ceiling 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 (if local codes allow), install the heat alarm on inside walls with the  
top of the alarm between 4 and 12 inches from the ceiling/wall intersections.  
Install heat alarms on peaked cathedral or gabled ceilings 3 feet from the highest point  
(measured horizontally).  
In rooms with open joists or beams, all ceiling mounted heat alarms should be located  
on the bottom of such joists or beams and not up in joist channels.  
Heat alarms installed on an open-joisted ceiling shall have their smooth ceiling spacing  
reduced to no more than half of the listed spacing when measured at right angles to  
a solid joist.  
DO NOT INSTALL HEATALARMS  
In areas with high humidity, like bathrooms/shower rooms or areas near  
dishwashers or washing machines. Install at least 10 feet (3m) away from these  
areas if possible.  
Near air returns or heating and cooling supply vents, fans, decorative objects,  
window molding, etc. that may prevent heat from entering the unit thus interrupting  
its alarms.  
In an area where temperature may fall below -10oF (-23oC) or rise above 100oF  
(38oC).  
Near fluorescent lights. Electrical "noise" and flickering may affect the alarm's  
operation.  
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 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.  
- 5 -  
 
INSTALLATION  
Installation of this unit must conform to the electrical codes in your area;  
Article 760 of the National Electrical Code, NFPA 72, 101; SBC (SBCCI);  
UBC (ICBO); NBC (BOCA): OTFDC (CABO), and any other local or building  
codes that may apply. Wiring and installation must be performed by a  
licensed electrician. Failure to follow these guidelines may result in injury  
or property damage.  
This unit must be powered by a 24-hour, 120V AC 60Hz circuit. Be sure the  
circuit cannot be turned off by a switch, dimmer or ground fault circuit interrupter.  
Failure to connect this unit to a 24-hour circuit may prevent it from providing  
constant protection.  
iMPORTANT: Do not subject this alarm to megger, high voltage or high-  
pot tests. Remove the heat alarm(s) before high-potting tests occur on the  
circuit or system. (Ref. Section 550-17 National Electric Code, 2002 Edition).  
ELECTRICAL SHOCK HAZARD  
Turn off power to the area where you will install this unit at the circuit breaker or  
fuse box before beginning installation. Failure to turn off the power before  
installation may result in serious electrical shock, injury or death.  
TAMPER LOCKING PIN: To make your heat alarm somewhat tamper resistant, a  
locking pin has been provided. Using this pin will deter children and others from  
removing the alarm from the mounting ring. To use the pin, insert it into the hole in the  
side of the alarm after it has been installed on the mounting ring. Note that the tamper  
pin will have to be removed in order to change the battery, which can be done easily  
with a pair of long nose pliers. Using the long nose pliers, pull the pin out of the hole.  
It is now possible to remove the heat alarm from the mounting ring.  
1. Turn the heat alarm counterclockwise to remove it from the mounting ring. NOTE:  
The heat alarm is sealed and the cover is not removable. Your heat alarm is also  
equipped with a safety device which prevents mounting unless a battery is installed.  
If your heat alarm will not lock onto the mounting ring, check to make sure a  
battery is installed.  
2. Wiring Instructions:  
a. The appropriate power supply is 120 Volt single phase power supplied from a  
non-switchable circuit NOT protected by a ground fault circuit interrupter.  
b. Turn off main power to the circuit before wiring the heat alarm.  
c. There are three pigtail leads (black, white and yellow) coming from the AC  
QUICK CONNECTOR. The proper wire connection is as follows:  
WIRES FROM QUICK CONNECTOR  
CONNECT TO  
"HOT" side of AC line  
"NEUTRAL" side of AC line  
Interconnect wires of other units  
BLACK  
WHITE  
YELLOW  
For units that are used as single heat alarms, do not connect the yellow wire to  
anything. Insulate this wire (tape it) in place to make certain the yellow wire  
cannot contact any metal parts.  
Interconnected units can provide earlier warning of fire than stand-alone units,  
especially if a fire starts in a remote area of the dwelling. This heat alarm may be  
interconnected with as many as 12 other USI model smoke alarms such as USI-1103,  
USI-1203, USI-1204, USI-1208, USI-1209, USI-1213, USI-3204, USI-5204 and 6 other  
units which may be a combination of Carbon Monoxide Alarms such as USI-7385,  
USI-7390, USI-7485, USI-7490, USI-7795, Heat Alarms/USI-2430 or Relay Modules/  
USI-960 for a total of not more than 18 interconnected devices.  
- 6 -  
 
Interconnected CO alarms will only respond if a CO alarm / event initiates the  
alarm. All other alarms remain silent.  
Interconnected smoke alarms, heat alarms and relay modules will only respond if  
a smoke alarm / event or heat alarm / event initiates the alarm. All CO alarms  
remain silent.  
NOTE: Relay Modules/USI-960 will not respond if a CO alarm / event initiates the  
alarm.  
NOTE: Units without battery backup will not respond during an AC power failure.  
The yellow wire is used only for multiple station operation with USI Models only.  
Connecting this yellow wire to any other circuits may result in damage. When heat  
alarms are interconnected, all units must be powered from a single AC branch  
circuit. If local codes do not permit be sure the neutral wire is common to both  
phases. The maximum wire run distance between the first and last heat alarm in an  
interconnected system is 1,000 feet. NOTE: Use standard household wire (18 gauge  
or larger, rated at least 300V, as required by local codes) available at all electrical  
supply/hardware stores.  
The wiring to be used shall be in accordance with the provisions of Articles 210  
and 300.3(B) of the National Electrical Code, ANSI/NFPA 70. In addition, the  
resistance of the interconnecting wiring shall be a maximum of 10 Ohms.  
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 smoke alarm  
installed in each separate sleeping area (in the vicinity of, but outside of, the  
bedrooms) and heat or smoke alarms in living rooms, dining rooms, kitchens,  
hallways, attics, furnace rooms, closets, utility storage rooms, basements and  
attached garages. Test the heat or smoke alarm weekly to assure proper operation.  
3. Attach the mounting ring to the electrical junction box.  
4. To activate 9 volt battery and smoke alarm, pull and remove the thin colored plastic  
tab at battery door hinge. Discard plastic tab.  
5. Plug theAC QUICK CONNECTORS together. Push and turn the heat alarm clockwise  
onto the mounting ring.  
6. See "TAMPER LOCKING PIN."  
7. Turn onAC power and check the LED's for proper operation. The green LED lights to  
indicate AC power. The red LED will flash every 40-60 seconds to indicate proper  
operation.  
- 7 -  
 
OPERATION, TESTING & MAINTENANCE  
OPERATION: The heat alarm is operating once the power is connected and turned  
on (the battery must also be installed). When air temperature above 135oF is sensed,  
the unit sounds a loud alarm which continues until the air is cleared.  
This alarm incorporates the internationally recognized horn signal for evacuation. During  
alarm mode, the horn produces three short beeps followed by a two second pause  
and then repeats. This pattern is somewhat different than the previous alarm sound,  
which continually beeped.  
STANDBY CONDITION: The red LED flashes once every 40-60 seconds to indicate  
the unit is properly functioning.  
LOCAL ALARM CONDITION: The red LED flashes rapidly and the unit emits a loud,  
pulsating alarm sound.  
REMOTE ALARM CONDITION: The red LED is off and the unit emits a loud, pulsating  
alarm.  
GREEN LED: The green LED is on whenever AC power is turned on.  
TESTING: Test by pushing the test button on the heat alarm cover until the alarm  
sounds, then release. The alarm sounds if all electronic circuitry, horn and battery are  
working. If no alarm sounds, the unit may have a defective battery or other failure.  
NEVER use an open flame of any kind to test this unit. You might accidentally  
damage or set fire to the unit or to your home. The built-in test switch accurately  
tests the unit's operation as required by Underwriters Laboratories Inc. (UL).  
BACKUP BATTERY REPLACEMENT  
Disconnect AC power before changing battery. Shock hazard exists if AC power  
is miswired.  
The heat alarm uses a 9 Volt battery. The battery should last for at least one year  
under normal operating conditions. The heat alarm has a low battery indicator, an  
audible "beep." It will operate at 30-40 second intervals for a minimum of 7 days.  
When this indication occurs, replace the battery with an Alkaline type (Eveready  
Energizer #522, Duracell #MN1604), Carbon-Zinc type (Gold Peak #1604P, Eveready  
#216), or Lithium type (ULTRALIFE U9VL-J).  
Push and lift the battery door latch and remove the battery from the battery door.  
While observing polarity, push the replacement battery into the battery door until it is  
held securely in place. Carefully close and latch the battery door.  
REPAIRS AND SERVICES  
If the heat alarm is defective in any way, do not tamper with the unit. Return the unit  
for servicing. (See warranty for instructions or in-warranty returns.) There will be a  
service charge for repairing out of warranty units.  
- 8 -  
 
DEVELOP AND PRACTICE A PLAN OF ESCAPE  
BASICS OF ESCAPE PLAN  
o Make a floor plan indicating all doors and windows and at least two escape routes  
from each room. Second story windows may need a rope or chain ladder.  
o Have a family meeting and discuss your escape plan, showing everyone what to  
do in case of fire.  
o Determine a place outside your home where all of you can meet if a fire occurs.  
o Familiarize everyone with the sound of the heat alarm and train them to leave your home  
when they hear the sound.  
o Identify children's bedrooms with red stickers placed in the upper left corner of the  
windows. They are available from your local fire department.  
o Practice a fire drill at least every six months. Practice allows you to test your plan  
before an emergency. You may not be able to reach your children. It is important  
they know what to do!  
WHAT TO DO WHEN THEALARM SOUNDS  
o Leave immediately by your plan of escape. Every second counts, so don't waste  
time getting dressed or picking up valuables.  
o In leaving, don't open any inside door without first feeling its surface. If hot, or if  
you see smoke seeping through cracks, don't open that door! Instead, use  
your alternate exit. If inside door is cool, place your shoulder against it, open it  
slightly and be ready to slam it shut if heat and smoke rush in.  
o Stay close to the floor if air is smoky. Breathe shallowly through a cloth, wet if  
possible.  
o Once outside, go to your selected meeting place and make sure everyone is there.  
o Call the fire department from your neighbor's home – not from yours!  
o Don't return to your home until fire officials say that it is all right to do so.  
THIS PRODUCT MEETS ALL THE REQUIREMENTS OF  
UL STANDARDS FOR SAFETY, UL217 6TH EDITIONAND UL539.  
- 9 -  
 
USI FIVE YEAR LIMITED WARRANTY  
USI ELECTRIC, INC. ("USI") warrants your USI product to be free from defects  
in material and workmanship for a period of five (5) years from the date of  
purchase. This warranty applies only to the original consumer purchaser and only  
to products used in normal residential use and service. If this product is found to be  
defective, USI's only obligation, and your exclusive remedy, is the repair or replacement  
of the product, at USI's discretion, provided that the product has not been damaged  
through misuse, abuse, accident, modifications, alteration, neglect or mishandling.  
This Warranty shall not apply to any product which is found to have been improperly  
installed, set-up, or used in any way not in accordance with the instructions supplied  
with the product. This warranty shall not apply to any batteries used in the product  
or to any damage which may be caused by such batteries. For repair or replacement,  
send the defective product to USI ELECTRIC, INC. at 11407 Cronhill Drive, Suite A,  
Owings Mills, Maryland 21117, postage prepaid with a payment of $8.50 to cover the  
costs of return postage and handling. You must include a proof of purchase (receipt)  
along with the returned product.  
USI DOES NOT WARRANT AND SPECIFICALLY DISCLAIMS ANY WARRANTY,  
WHETHER EXPRESS OR IMPLIED, OF FITNESS FOR A PARTICULAR PURPOSE,  
OTHER THAN THE WARRANTY CONTAINED HEREIN. NO IMPLIED WARRANTY ON  
THIS PRODUCT, CREATED BY STATE LAW, SHALL EXTEND BEYOND THE TERM  
OF THIS WARRANTY UNLESS SUCH LAW OTHERWISE PROVIDES. USI  
SPECIFICALLY DISCLAIMS ANY LIABILITY AND SHALL NOT BE LIABLE FOR  
ANY CONSEQUENTIAL OR INCIDENTAL LOSS OR DAMAGE, INCLUDING, BUT  
NOT LIMITED TO, DAMAGES TO ANY EQUIPMENT WITH WHICH THIS PRODUCT  
IS USED.  
Some states do not allow the exclusion or limitation of incidental or consequential  
damages so the above limitations or exclusions may not apply to you.  
No agent, representative, dealer, or employee of the company has the authority to  
increase or alter the obligations or terms of this Warranty.  
This Warranty gives you specific legal rights and you may also have other rights  
which vary from state to state.  
This Warranty is only valid for merchandise purchased from outlets in the United  
States and Canada.  
Visit Us on the Web! www.SmokeAlarms.com  
11407 Cronhill Drive, Suite A  
Owings Mills, Maryland 21117 USA  
©2000 UNIVERSAL SECURITY INSTRUMENTS, INC.  
288-3256-00D  
Printed in China  
 

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