Firex 5700 User Manual

The Firex®5700 Heat Alarm offers contractors the same reliability and quality they have long depended
on from the leader in fire safety technology. The Firex Heat Alarm, Model 5700, is a fixed temperature
unit that detects heat at 135°F (57°C) or greater. It relies on a thermistor that is sensitive only to temper­ature. When the temperature reaches 135°F (57°C) or greater, the alarm is triggered. The 5700 requires
120V AC power and includes a 9V battery back-up for added protection in the event of a power failure.
The 5700 heat alarm is interconnectable with other AC/DC Firex heat alarms, smoke alarms, smoke/co
combo alarms, and carbon monoxide alarms. Up to 11 other smoke alarms and smoke/co combo alarms
can be interconnected, and 6 Firex heat alarms and carbon monoxide alarms for a total of not more than
18 devices. Contractors have been installing the best selling Firex smoke alarms for over 20 years and
will appreciate the design similarities when installing Firex heat alarms. Both products utilize a Quick
Connect wire harness, an optional tamper-resist feature and a unique power connector that prevents
interconnection with incompatible heat alarms, smoke alarms or security systems.

5700 Features and Benefits

Heat alarms are sensitive only
to a fixed temperature — Less

nuisance alarms due to contamination,
dust and insects

Installation design and features
similar to other Firex®Smoke
Alarms — Contractor familiarity

with installation

Interconnects with other Firex
Smoke Alarms, CO Alarms,
Smoke/CO Alarms, and Heat
Alarms — Compatible with contractor

preferred Firex products

Large, easy to use push-to-test
button — Quickly locate and access

test button to test all alarm functions
once installation is complete

LED — Green “power-on” LED confirms
constant AC power and red LED displays
alarm/battery status

Incorporates Firex installer-focused
innovations — Fastest and easiest

installation available

9 Volt battery back-up (included) —

Provides extra protection during power
outages

Attractive, low-profile design —

Our contemporary StyleLine design™
is a favorite among consumers

Why Install a Firex Heat Alarm?

Some environments can trigger nuisance alarms in conventional smoke alarms due to shifts in
temperature and humidity as well as dust, fumes and insects. Heat alarms are intended for use
in the locations listed below because they are virtually unaffected by these adverse conditions:

• Kitchens • Unfinished Attics • Basements

• Garages • Boiler Rooms • Other areas where high levels
of dust and fumes are present

Heat alarms should always be interconnected
with smoke alarms to provide early
warning when fire is present.

5

Year
Limited
Warranty

Description

Item 5700

Technical Specifications

Architectural Specifications

Shipping Specifications

This heat alarm should be installed in accordance with the NFPA’s Standard
72 (National Fire Protection Association, Batterymarch Park, Quincy, MA

02269) and any local codes that apply.
Use #18 AWG minimum solid or stranded wire. When interconnecting,

maximum wire length between any two is 1,500 feet for #18 AWG or
4,000 feet for #14 AWG (20 OHMS loop resistance).

DO NOT connect to any other type or model of heat or smoke alarm. 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.

Installation of Heat Alarm

Individual Carton Dimensions 5-1/4" x 2-11/16"x 5-1/4"
Master Carton Quantity 10
Master Carton Dimensions 15-3/4" x 11-1/4"x 6"
Master Carton Weight 7.62 lbs.

150-1344E

Side View

Mounting Bracket

The heat alarm shall be a StyleLine design™ (2-1/8" high, 5"
diameter), powered by 120V AC, 60Hz source with a 9-volt battery
back-up. The alarm shall have a fixed temperature sensor set to
alarm at nominal 135°F (57°C). The alarm shall be rated at no
greater than .05W in standby. Operating temperature range shall
be between -10°F and 158°F; 10%-93% relative humidity; 100%
solid state circuits over an input range of 100-130V AC. A green
continuous power on indicator shall be a built-in light emitting
diode (LED) in the standby condition; a second red blinking LED
shall indicate that a sufficient 9-volt battery back-up is present;
when activated; the initiating alarm red LED shall flash while the
interconnected alarms remain extinguished. The test switch
shall activate the alarm function by electronically simulating
a temperature greater than 135°. The alarm shall mount to a
single gang box, 4" octagon junction box, or a square to round
drywall ring without screw removal. It shall have a Quick Connect
molded harness, pigtail wiring and separate mounting bracket.
It shall meet the requirements of U.L. Standard 539 and 217.

5"

2.125"

Item 5700
Model ADH
Product Weight 8.6 ounces
Operating Temperature -10°F to 158°F (-23°C to 70°C)
Interconnect Qty Up to 18 Firex devices maximum: 12 smoke alarm

items 5000, 4618 and 46182 (model FADC), 4518
(model ADC) and 4480 (model PAD). Up to 6 heat, car­bon monoxide or smoke and carbon monoxide combi­nation alarms maximum; Firex carbon monoxide alarm
item 6045 (model COQ8), Firex smoke and carbon
monoxide combination alarm item 7000 (model
FADCQ) or Firex heat alarm item 5700 (model ADH).

Electrical Rating 120V AC, 60HZ, 50mA max, 9 Volt Battery Back-up
Alarm Point 135°F (57°C) fixed temperature

triggers alarm

Horn Output 85 decibels at 10 feet
Listing U.L. 539 and 217
U.L. Recommended
Coverage 2500 square feet
U.L. Recommended
Spacing 50 feet
Maximum Distance
from Wall 25 feet

Item 5700

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