Interlogix HDX-135Z-433 User manual

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Attention: Please take a few minutes to thoroughly read this user guide which should be
saved for future reference.
NOTE: Leave this user guide with the home owner.
You do NOT need a home wi-fi system to use these units. Multiple wireless units create
their own independent wireless alarm network.
HDX-135Z-433
Wireless Interconnected
Heat/Freeze sensor 433-63
User Guide

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Thank you for purchasing this Interlogix heat alarm
This model is powered by a non-replaceable, long life sealed lithium battery system, and
includes SMART HUSH®Control to temporarily silence nuisance alarms. It is capable of
Wireless Interconnect with compatible units.
WARNING! THIS HEAT ALARM IS NOT DESIGNED TO PROTECT LIFE SAFETY
AGAINST FIRE AND SMOKE. SEE LIMITATIONS IN SECTION 6 FOR DETAILS.
READ SECTION 8: Installation / Activation / Wireless, before powering the units.
You do NOT need a home wi-fi system to use these units. Multiple wireless units
create their own independent wireless alarm network.
Teach children how to respond to the alarm and that they should never play with the unit. Your
Interlogix heat alarm was designed for use in a residential environment. It is not designed for
use in a recreational vehicle (RV) or boat.
NOTE: Please thoroughly read this user guide and save the document for future reference and
to pass on to any subsequent owner.
The manufacturer recommends replacing this alarm ten years from the date code on back of
the alarm.
Customer Service: 1-855-286-8889
Please write down the below information and have this at hand when you call.
Model (on back): _________________
Date Code (on back): _________________
Date of Purchase: _________________
Where Purchased: _________________
Date to Replace: _________________

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Contents
1. Heat Alarm: What To Do When The Alarm Sounds.........................................................4
2. Other Alarm Visual And Audible Indicators .....................................................................5
3. Troubleshooting Guide ...................................................................................................... 7
4. Introduction, Product Features & Specifications............................................................ 9
5. Limitations Of Heat Alarms.............................................................................................. 13
6. Recommended Locations For Heat Alarms ...................................................................14
7. Locations To Avoid ........................................................................................................... 17
8. Installation / Activation / Wireless ................................................................................... 18
8.1 Set Up A Wireless Alarm Network (Wireless Interconnect) .................................................. 19
8.2 Adding Alarms to an Existing Wireless Interconnected Network ......................................... 21
8.3 Resetting an Alarm’s Wireless Interconnect Settings ........................................................... 22
9. Operation and Testing……………………………………………………............................. 23
10. Recognizing Nuisance Alarms …………………………………………............................. 25
11. Battery ………………………………………….................................................................... 26
12. Permanently Disable Alarm / Discharge Battery .......................................................... 27
13. Cleaning Your Alarm …………………….......................................................................... 28
14. Good Safety Habits ……………………........................................................................… 29
15. Service And Warranty …………………........................................................................…31

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1. Heat Alarm: What To Do When the Alarm Sounds
Heat alarm pattern is three long beeps, a 1.5 second pause, and three long beeps repeating.
The red LED blinks in time with alarm pattern.
•Alert small children in the home as well as anyone else that might have difficulty recognizing the
importance of the alarm sounding or that might have difficulty leaving the area without help.
•Leave immediately by your escape plan. Every second counts, so don’t waste time getting dressed or
picking up valuables.
•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 the inside of the door is cool,
place your shoulder against it, open it slightly and be ready to slam it shut if heat and smoke rush in.
•If the escape route requires you to go through smoke, stay close to the floor where the air is cleaner.
Crawl if necessary, and breathe shallowly through a cloth, wet if possible.
•Once outside, go to your selected meeting place and make sure everyone is there.
•Call the fire department from your cell phone outside, or from your neighbor’s home-not from yours!
•Don’t return to your home until the fire officials say that it is all right to do so.
•There are situations where an alarm may not be effective to protect against fire as stated in the NFPA
Standard 72. For instance:
a) smoking in bed
b) leaving children home alone
c) cleaning with flammable liquids, such as gasoline
NOTE: See Section RECOGNIZING NUISANCE ALARMS, for nuisance alarm situations.

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2. Other Alarm Visual and Audible Indicators
Operational Mode Visual Indications Audible Indications Action/Note:
Normal Operation
(standby)
One GREEN LED blink
every 60 seconds.
Freeze Warning One RED LED blink
every 20 seconds.
None None. Flashing continues
while condition exists.
Tamper Condition One RED LED blink
every 30 seconds
(after a 3 minute
delay).
Alarm chirps once when tamper
condition is rst sensed, then the
alarm will chirp every 30 seconds
after a 3 minute delay.
Reattach alarm to its trim
plate, otherwise ashing and
chirping will continue while
condition exists.
System Test Mode Rapidly ashing RED
LED for 10 seconds
duration
1 alarm chirp when magnet
detected, 2 alarm chirps when System
Test mode enabled
Hold magnet next to button
for 4 seconds. See Figure 5.
Local Alarm Test
(button press when
no alarm condition
is present)
Flashes RED, AMBER,
GREEN, then current
protocol
Temporal T3 pattern Allow completion of test or
perform button press to
cancel, return to normal
operation
System Alarm Test (but-
ton press in System Test
Mode when no alarm
condition is present)
Flashes RED, AMBER,
GREEN, then current
protocol on each alarm
in the network
Temporal T3 pattern Allow completion of test or
perform button press to
cancel, return to normal
operation.

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Operational Mode Visual Indications Audible Indications Action/Note:
Heat Alarm Memory
(alarm has experienced
an alarm event within
the last hour)
Alternating ashing
RED and AMBER
LEDs. 1 second RED/1
second AMBER/ 10
seconds OFF,
repeating for 1 hour
None Press test button to clear alarm
memory, or allow 1 hour time out
to return to normal operation.
NOTE: standard test sequence
will follow. (Push/release button
again to cancel test).
Heat Alarm Hush Mode
(Heat HUSH
®
CONTROL)
Red LED blinks
every 2 sec.
After button push: Heat alarm
pattern stops. (If the unit still
detects a dangerous situation
the alarm will sound again)
This feature is to be used only
when a safe condition is known
to exist.
Locate None After button push on non-ini-
tiating unit, only initiating unit
continues alarm pattern.
Use this to quickly locate the
alarm source and determine if
alarm is nuisance or real.
Initiating Alarm Alarm
(multiple alarms in an
interconnected system)
Green LED blinks once
per sec indicating that
this is the unit
initiating the alarm in
an interconnected,
multiple alarm, system.
Unit in Heat Alarm mode. During alarm, the initiating alarm
red blink will be interrupted by a
green blink.

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3. Troubleshooting Guide
Trouble Condition Visual Indications Audible Indications Action:
Fault Mode/Fatal
Error
One AMBER
LED blink every 5
seconds.
Alarm chirps
every 30 seconds.
1. Push the Test/Hush button once to attempt to
reset the alarm.
The RED LED will blink out an Error Code
(number of blinks) when the Test/Hush button
is pushed/released once.Report the number of
blinks to Customer Service, if needed.
2. Clean your alarm. See “Cleaning Your Alarm”
for instructions.
3. Remove alarm from service. If fatal error
cannot be cleared, permanently discharge and
decommission the alarm.
Network Error
(if a alarm loses
wireless interconnect
connection due to
loss of signal)
One AMBER
LED blink every 5
seconds.
Alarm chirps every
30 seconds. (NOTE:
chirps only occur if
network includes more
than 2 alarms.)
Remove device from mounting bracket, and try
rotating and re-installing the device in a different
orientation on the mounting bracket. This might
align the antenna in a better position.
1. Push the Test/Hush button once to silence the
audible indication for 24 hours at a time.
The RED LED will blink out an Error Code
(number of blinks) when the Test/Hush button
is pushed/released once. Report the number of
blinks to Customer Service, if needed.
2. Follow instructions in “Resetting an Alarm’s
Wireless Interconnect Settings.”, then attempt
to rejoin the network by following the instruc-
tions in ”Adding Alarms to an Existing Wireless
Interconnected Network .”*If the error persists,
remove, discharge, and replace the alarm as
soon as possible.
Network Error due to
loss of radio
(CCI supervision)
One AMBER
LED blink every 5
seconds.
Alarm chirps every 30
seconds, regardless of
the number of
alarms in the network.
1. Push the Test/Hush button once to silence the
audible indication for 24 hours at a time.
The RED LED will blink out an Error Code (4
blinks) when the Test/Hush button is pushed/
released once. Report the number of blinks to
Customer Service, if needed.
2. Remove, discharge, and replace the alarm as
soon as possible.

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Trouble Condition Visual Indications Audible Indications Action:
Low Battery One AMBER LED blink
every 5 seconds.
Alarm chirps every 60
seconds
Remove, discharge, then dispose of
alarm. Replace as soon as possible.
End of Alarm
Life (EOL)
One AMBER LED blink
every 5 seconds.
Double alarm chirp every
30 seconds.
The RED LED will blink out an Error
Code of 9 blinks. Start of EOL will be
delayed if Night Detect is active.
Hush (for Network
Error, End of Life)
One AMBER LED blink
every 5 seconds.
Chirp temporarily
silenced for 24 hours.
Push the Test/Hush button to
initiate Hush for 24hrs.
Alarm Fault: Number of RED LED Blinks (short
duration blinks) Wireless Fault: Number of RED LED Blinks (long duration
blinks)
7: Push to Test
8: Memory
9: Life Expiration
12: Temperature Sensor Supervision
2: Fault Coordinator
3: Fault RFD
4: CCI Supervision
5: RFD Check In
6: RFD Time Sync

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4. Introduction, Product Features and Specifications
Introduction
The HDX-135Z-433 supervised heat alarm with freeze sensor is a self-diagnostic alarm with wireless
interconnection, 10-yr sealed battery and sensor life, built-in sounder, diagnostic/status LED,
integrated fixed temperature and rate-of-rise heat sensor and a pre-freeze condition indicator.
The HDX-135Z-433 uses a 918MHz transceiver for interconnection communication between
networked alarms. Up to 24 alarms can be a part of the same interconnected network.
The HDX-135Z-433 uses 10-year sealed-in lithium batteries ensuring continuous operation over the
10 year life of the alarm. This eliminates worry about battery removal or unauthorized deactivation of
the alarm. The self-activation feature activates the alarm when attached to the mounting bracket. At
the end of alarm life, the unit will chirp, indicating the alarm is in need of replacement (see
Troubleshooting Guide).
To help identify the date to replace the alarm, a label has been affixed to the side of the alarm. Write
the “Install date” in the space provided, and then write in the “Replace by” date (10 years from initial
power up) in permanent marker on the label prior to installing the alarm.

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Power 3V DC non-replaceable sealed lithium batteries
Temperature sensor NTC Thermistor
Battery life 10 years*
Alarm life 10 years
Audible alarm
Heat
85dB at 10’ @ 3.0 to 3.5 KHz pulsing alarm
Temporal T3 pattern
Single Unit Box Dimensions 142mmx149mm x 65mm (W x L x H)
Product Dimensions Ø142.3 ± 0.3mm x 59.0 ± 1.0mm
Gross Weight (unit, pkg, etc) 452 grams
Net Product Weight 327 grams
Product Features and Specifications:

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Rate-of-Rise (ROR)
heat detection
15°F/min (8.3C/min) monitoring above 85°F (29.4°C)
Fixed temperature
heat detection
~135°F (57.2°C)
Freeze warning 41°F (5°C) ± 5°F (2.8°C)
Storage temperature -4 °F (-20°C) to 140°F (60°C)
Operating environment
Temperature
Relative humidity
32 °F to 100 °F (0 °C to 37.8 °C)
0 to 95% noncondensing
Regulatory
Listings
UL539
*3 year warranty. Not a battery performance claim.
Product Features and Specifications:

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Model Description
HDX-135Z-433 Wireless Interconnected Heat/Freeze sensor 433-63. UL539.
Product Ordering:

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5. Limitations of Heat Alarms
•Heat alarms are not designed to protect life safety against fire and smoke. In most fires, hazardous
levels of toxic gases, smoke and heat can build up before a heat alarm will operate. In cases where life
safety is an issue, heat alarms should only be used to provide an added source of information and as
a supplement to the smoke alarm installation. Heat alarms do not always detect fires, the fire may be
a slow smoldering (smoke producing) low heat producing type, the fire may be in a different room than
the alarm, or the heat from the fire may bypass the alarm. This alarm will not detect smoke, gases or
flames.
•Leading authorities recommend that both ionization and photoelectric smoke alarms be installed to
help insure maximum detection of the various types of fires that can occur within the home. Ionization
sensing alarms may detect invisible fire particles (associated with fast flaming fires) sooner than pho-
toelectric alarms. Photoelectric sensing alarms may detect visible fire particles (associated with slow
smoldering fires) sooner than ionization alarms.
•Life safety from fire in residential occupancies is based primarily on early notification to occupants of
the need to escape, followed by the appropriate egress actions by those occupants.
•Fire warning systems for dwelling units are capable of protecting about half of the occupants in po-
tentially fatal fires. Victims are often intimate with the fire, too old or young, or physically or mentally
impaired such that they cannot escape even when warned early enough that escape should be pos-
sible. For these people, other strategies such as protection-in-place or assisted escape or rescue are
necessary.
•A battery powered alarm must have a battery of the specified type, in good condition and installed
properly (This model has a sealed battery).
•Heat alarms must be tested regularly to make sure the battery and the alarm circuits are in good operating
condition.
•If the alarm is located outside the bedroom or on a different floor, it may not wake up a sound sleeper.
•Heat alarms cannot provide an alarm if heat does not reach the alarm. Therefore, heat alarms may not
sense fires starting in chimneys, walls, on roofs, on the other side of a closed door or on a different
floor. If the alarm is located outside the bedroom or on a different floor, it may not wake up a sound
sleeper. The use of alcohol or drugs may also impair ones ability to hear the alarm. For maximum
protection heat alarms should only be used as a supplement to smoke alarms. Smoke alarms should be
installed in each sleeping area on every level of a home and be interconnecte with each other and the
heat alarms.
•Although heat alarms when combined with smoke alarms, can help save lives by providing an early
warning of a fire, they are not a substitute for an insurance policy. Home owners and renters should
have adequate insurance to protect their lives and property..
NOTE: This alarm is not intended to alert hearing impaired individuals.

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6. Recommended Locations for Heat Alarms
•The most favorable mounting location for a heat alarm is on the ceiling in the center of the room. At this
location the alarm is closest to all areas of the room (see Figure 1). EXCEPTION: When the mounting
surface might become considerably warmer or cooler than the room, such as a poorly insulated ceiling,
below an unfinished attic, or an exterior wall. In these cases the alarm should be mounted on an inside
wall.
•If the alarm cannot be located in the center of the room, an off-center location can be used on the
ceiling. When off center mounting an alarm on the ceiling, locate it at a minimum of 4” (10 cm) from the
side wall (see Figure 1).
•If a ceiling mounting location is not feasible the next logical location for mounting heat alarms is on the
side wall. When mounting the alarm on the wall, use an inside wall with the top edge of the alarm at a
minimum of 4” (10 cm) and a maximum of 12” (30.5 cm) below the ceiling (see Figure 1).
•Install Heat Alarms on sloped, peaked or cathedral ceilings at or within 3 ft (0.9m) of the highest point
(measured horizontally). NFPA 72 states: “Smoke alarms in rooms with ceiling slopes greater than 1 ft
in 8 ft (.3m in 2.4m) horizontally shall be located on the high side of the room.” NFPA 72 states: “A row
of alarms shall be spaced and located within 3 ft (0.9m) of the peak of the ceiling measured
horizontally” (see Figure 3).
•In rooms with open joists or beams, all ceiling mounted alarms shall be located on the bottom of such
beams (see Figure 2).
•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 the solid joist (See Figure 2).
•UL recommended coverage per heat alarm is 2500 square feet. NOTE: Maximum coverage
established by U.L. is based on providing equal response time as sprinkler devices spaced at 10-Ft
intervals (100 Sq/Ft) on a smooth ceiling approximately 15 feet high. Higher ceilings may adversely
affect response time and earlier response time may be obtained by reducing the spacing between
alarms.
•UL recommended spacing between heat alarms is 50 feet.
•Maximum distance from wall is 25 feet. NOTE: Maximum distance is from any wall or ceiling projection
extending down more than 12 inches.

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MOBILE HOME INSTALLATION
Modern mobile homes have been designed and built to be energy efficient. Install heat alarms as recom-
mended above (refer to RECOMMENDED LOCATIONS and Figure 1).
In older mobile homes that are not well insulated compared to present standards, extreme heat or cold can
be transferred from the outside to the inside through poorly insulated walls and roof. This may create a
thermal barrier which can prevent the heat from reaching an alarm mounted on the ceiling. In such units,
install the heat alarm on an inside wall with the top edge of the alarm at a minimum of 4” (10 cm) and a maxi-
mum of 12” (30.5 cm) below the ceiling (see Figure 1).
If you are not sure about the insulation in your mobile home, or if you notice that the outer walls and ceiling
are either hot or cold, install the alarm on an inside wall.
WARNING: TEST YOUR HEAT ALARM OPERATION AFTER MOBILE HOME VEHICLE HAS BEEN
IN STORAGE, BEFORE EACH TRIP AND AT LEAST ONCE A WEEK DURING USE.
This equipment should be installed in accordance with the National Fire Protection Association’s 72 (National
Fire Protection Association, Batterymarch Park, Quincy, MA 02269).

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FIGURE 1 FIGURE 2
FIGURE 3

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7. Locations to Avoid
• In front of forced air supply ducts used for heating and air conditioning, near ceiling fans, or other high air flow
areas.
• In an area where the temperature may fall below -20ºF or rise above 100ºF.
• Near fluorescent lights – electronic “noise” may cause nuisance alarms.
• Heat alarms are not to be used with alarm guards unless the combination (alarm and guard) have been
evaluated and found suitable for that purpose.
• In very humid areas (above 95% RH, non-condensing). Moisture or steam can cause nuisance alarms.
• Alarms should not be installed within 3 ft (.9m) of the door to a bathroom containing a tub or shower, forced air
supply ducts used for heating or cooling, ceiling or whole house ventilating fans, or other high air flow areas.
Do not install near fans, doors, windows or areas directly exposed to the weather.

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8. Installation / Activation / Wireless
You do NOT need a home wi-fi system to use these units. Multiple wireless units create their own indepen-
dent wireless alarm network (wireless interconnect between multiple alarms).
WARNING: THIS ALARM SHOULD BE INSTALLED BY A CERTIFIED TECHNICIAN.
WARNING: FAILURE TO PROPERLY INSTALL AND ACTIVATE THIS ALARM WILL PREVENT
PROPER OPERATION AND RESPONSE TO HAZARDS.
If you are installing alarms and will use the wireless interconnect function, proceed to section
8.1 “Set Up a Wireless Alarm Network (Wireless Interconnect)” If you are not using the
wireless alarm-to-alarm interconnect function, then proceed with the following two steps.
1. After selecting the proper location for the alarm, attach the mounting bracket (trim plate) to the wall or
ceiling. To ensure aesthetic alignment of the alarm with the hallway, or wall, the “A” line on the mount-
ing bracket (trim plate) must be parallel with the hallway when ceiling mounted or horizontal when wall
mounted.
2. Install the alarm fully on the mounting bracket (trim plate) by rotating the alarm in a clockwise
direction.
NOTE: Installing the alarm on the mounting bracket (trim plate) will automatically activate the battery.
The power up sequence is indicated by the LED ring slowly glowing GREEN on/off one time.
NOTE: Alarms will emit a series of slow RED LED glowing on/off as the alarm searches for a wireless
network. If you are intending to use the alarms without the wireless interconnect function, ignore these
notifications, and the wireless interconnect function will eventually turn off (~15 minutes) OR to immediately
finish this process, push the Test/Hush button until two beeps are heard (approximately 4 seconds).
The LED will change to glowing GREEN on/off every second. Repeat the button push/hold for another 4
seconds, until two beeps are heard, and then release the button. This will close the network.
•When the network has been closed, each alarm’s GREEN LED will change from glowing on/off every
second to flashing once every 60 seconds to indicate normal operation.
NOTE: The battery activation is a one-time feature. After activation, the battery cannot be turned off, and
can only be discharged at the end of unit life. If the alarm is removed from the mounting plate, the battery
will remain active. See Permanently Disable Alarm / Discharge Battery section to de-energize the alarm.

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8.1 Set up a Wireless Alarm Network (Wireless
Interconnect)
1. Remove all wireless alarms from their packaging (suggest using a table and activating all alarms in a group).
2. Power on all alarms by attaching the alarms onto the mounting bracket (trim plate) to activate the bat-
tery, or by carefully turning the red activation wheel with a screwdriver. See Figure 4.
•
The GREEN LED will fade on and off once, then the RED LED will begin fading on/off every 3 seconds.
NOTE: If no further steps are taken within 15 minutes of initial power up, the wireless function will turn
off. The alarm will then perform as a single station alarm.
WIRELESS
These models have wireless alarm interconnect capability. When one interconnected alarm sounds an
alarm, all other compatible wireless alarms in the wireless alarm network will alarm.
A maximum of 24 compatible devices may be interconnected in a multiple station arrangement.
This alarm is not designed to be interconnected with other manufacturer’s products, unless otherwise
specified.
WIRELESS INTERCONNECT MODEL COMPATIBILITY
The following Interlogix models can be interconnected using wireless interconnect:
• SDX-135Z-433, HDX-135Z-433
• Maximum distance between wireless interconnect models is 300 feet in open air.
Figure 4

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3. After all alarms are powered on and the RED LED is glowing on/off, push and hold the Test/Hush button
on any one alarm until two beeps are heard (approximately 4 seconds) and then release the button. This
alarm will automatically create a new wireless network.
• A brief series of quick GREEN LED blinks will occur and then the GREEN LED will fade on/off every
second on the button-pushed alarm (network creator).
4. Wait for the other wireless alarms to join the wireless network.
• A brief series of quick GREEN LED blinks will occur and then the GREEN LED will fade on/off
approximately every 3 seconds.
NOTE: At this point, you can push/release the test button once on any alarm, and the RED LED will
flash the number of enrolled alarms.
5. Wait for the network setup to timeout (approximately 15 minutes), OR to immediately close the network,
push the Test/Hush button until two beeps are heard (approximately 4 seconds) and then release the
button. The network can be closed from any device enrolled in the network.
• When the network has been closed, each alarm’s GREEN LED will change from glowing on/off
every second to flashing once every 60 seconds to indicate normal operation.
6. After selecting the proper location for your alarm, attach the mounting bracket to the wall or ceiling. To
ensure aesthetic alignment of the alarm with the hallway, or wall, the “A” line on the mounting bracket
must be parallel with the hallway when ceiling mounted or horizontal when wall mounted.
• Install the alarm fully on the mounting bracket (trim plate) by rotating the alarm in a clockwise
direction. NOTE: The alarm will mount to the bracket in 4 positions (every 90 degrees).
7. The alarm is now activated. After installation / activation, test your alarm as described in
Operation and Testing section.