521CXT-ID
Dining
Room
Kitchen
Bedroom
Bedroom
Bedroom
Living Room
TV Room
Dining
Room
Kitchen Bedroom
Bedroom
Bedroom
Living Room
Smoke Detector
Installation Instructions
CSFM
Description
The 521CXT-ID Smoke Detector is an addressable 2-wire photoelectric detector that interfaces with the PinPoint
The smoke detector provides the following features:
CleanMe®
Enables the control panel to receive a warning signal via the NX-2192
PinPoint
® module, indicating that the optical chamber needs to be
replaced.
Self-diagnostics
Includes automatic sensitivity testing. Once a day and immediately
upon first power up, each 521CXT-ID detector performs a full
diagnostic test that includes a dynamic test of the sensing chamber
and internal electronics. This meets NFPA 72 field sensitivity testing
requirements without the need for external meters.
Drift compensation
The detectors automatically adjust sensitivity, up to a maximum of
0.5%/ft., as the detectors become dirty.
WARNING
This document is intended for licensed electricians/
alarm installers. GE Security cannot provide technical
support to unqualified persons.
If you have questions, call GE Security at 1-800-648-7424.
® system.
Where to Locate the Required Smoke Alarms in New Construction.
All of the smoke alarms specified for existing construction are
required and, in addition, a smoke alarm is required in each
bedroom.
Are More Smoke Alarms Desirable?
The required number of smoke alarms might not provide reliable
early warning protection for those areas separated by a door
from the areas protected by the required smoke alarms. For this
reason, it is recommended that the householder consider the use
of additional smoke alarms 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 alarms. The installation of
smoke alarms in kitchens, attics (finished or unfinished), or
garages is not normally recommended, as these locations
occasionally experience conditions that can result in improper
operation.
Important: Regulations pertaining to smoke detector installations vary from state to state. For more information, contact
your local fire department or local authority having jurisdiction.
Selecting a Location
Selecting a suitable location is critical to the operation of smoke
detectors. This equipment should be installed in accordance with the
National Fire Protection Association’s (NFPA) Standard 72.
A-11-8.3.a Where to Locate the Required Smoke Alarms in Existing
Construction.
The major threat from fire in a family living unit occurs at night when
everyone is asleep. The principal threat to persons in sleeping areas
comes from fires in the remainder of the unit. Therefore, a smoke
alarm(s) is best located between the bedroom areas and the rest of the
unit. In units with only one bedroom area on one floor, the smoke
alarm(s) should be located as shown in Figure 1 A.
In family living units with more than one bedroom area or with more
than one floor, more than one smoke alarm is required, as shown in
Figure 1 B.
In addition to smoke alarms outside of the sleeping areas, the
installation of a smoke alarm on each additional story of the family
living unit, including the basement, is required. These installations are
shown in Figure 1 C. The living area smoke alarm should be installed
in the living room or near the stairway to the upper level, 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 alarm should be placed on the bottom
of the joists. The alarm should be positioned relative to the stairway
to intercept smoke coming from a fire in the basement before the
smoke enters the stairway.
521CXT-ID
1 A
1 B
1 C
Bedroom
Living
Room
Basement
= Required smoke detectors
= Additional smoke detectors required for new construction
Figure 1. Detector placement
Bedroom
Dining
Room
1
In addition to NFPA 72, use the following location guidelines to
SON APEMS
SON APEMS
optimize performance and reduce the chance of false alarms from the
detector:
• Locate ceiling-mounted smoke detectors in the center of a room
or hallway at least 4 inches (10cm) from any walls or partitions.
• Locate wall-mounted smoke detectors so the top of the detector
is 4 to 12 inches (10 to 30cm) below the ceiling.
• Do not locate detectors in or near bathrooms or kitchens.
• Locate in a suitable environment as follows:
- Temperature between 32°F (0°C) and 100°F (37°C)
- Humidity between 0 and 95% non-condensing
• Locate away from air conditioners, heating registers, and any
other ventilation source that may interfere with smoke entering
the detector.
• Mount smoke detectors on a firm permanent surface.
Figure 3. Detector installation
From PinPoint system
To next unit
Installing the Detector
All wiring must conform to the National Electric Code (NEC) and/or
local codes having jurisdiction. Use 14 to 22 AWG wire to install the
detector; maximum of two wires per terminal.
1. If you are using the detector/base lock, remove the detector
knockout and break off the tab on the mounting base. See
Figure 2.
2. Remove the red plastic cover from the detector. The
detector is shipped with a cover for protection against
construction site dust.
3. Run PinPoint system wiring to the detector location and
mount electrical boxes if necessary.
4. Line up and attach the mounting base to the electrical box, wall,
or ceiling using the screws provided. Use the wall anchors
provided if necessary. See Figure 3.
5. Strip the system wires and connect them to the appropriate
terminals on the detector. See Figure 4.
6. Set the PinPoint address DIP switches. See Figure 4.
Note
Units are shipped with DIP switches set to 255. This is an
invalid address. The unit will not communicate with the
control panel until a valid address has been set. Refer to the
NX-2192 manual to determine the correct address setting for
each unit.
7. Attach the detector to the mounting base as follows:
- Line up the raised tab on the side of the detector with the
arrow on the mounting base. See Figure 5.
- Insert the smoke detector into the base and turn
clockwise approximately 15 degrees. It should snap
firmly into place.
8. Test the unit when the PinPoint system is completely
installed and the control panel is powered.
Break this tab to enable lock.
Remove this knockout to enable lock.
Figure 2. Detector/base lock
2
DIP switches
+ -
1 2 3 4 5 6 7 8
ON APEM
1 2 3 4 5 6 7 8
ON APEM
Note: The 521CXT-ID is polarity sensitive
Figure 4. Wiring and DIP switch diagram
Warning
The system may not operate if the detector is not
connected to the control unit initiating device circuit
as specified in the detector or control unit literature.
Figure 5. Mounting
Smoke Testing the Detector
Smoke detectors should be tested in place annually using one of the
following methods:
A. Use Smoke! in a can® (product number SM-200), a canned
aerosol simulated smoke and follow the directions on the can.
B. Use the following steps to test the detector with smoke:
1. Hold a smoldering punk or cotton wick close to the
smoke entry openings.
2. Gently direct the smoke into the detector for 20 seconds
or until an alarm is indicated by the LED flashing once every 3
seconds.
Be sure to extinguish the smoke source after testing! The
detector LED should flash once every 3 seconds. An alarm should
be indicated at the control panel. Reset the alarm condition at the
control panel after the smoke has cleared from the detector. The
LED returns to its normal 9 second flash rate.
521CXT-ID
Figure 6. Unlocking the detector
Figure 7. Testing the detector
Figure 8. Removing the detector cap
Understanding the LED
The LED on the detector indicates the status of the detector as
follows:
Flashing every 9 seconds = Normal operation.
Off or flashing once every 3 seconds = Alarm, trouble, or
maintenance is required. Test the detector. See Testing the
Detector Sensitivity.
Removing the Detector
T o r emove the detector fr om the mounting base, grasp the
detector and turn it counterclockwise approximately 15 degrees.
The detector should snap off of the mounting base.
To remove the detector from the mounting base when the
detector/base lock is used, insert a small screwdriver into the
locking tab slot on the side of the base and press in while
simultaneously turning the detector counterclockwise 15
degrees. See Figure 6.
Testing the Detector Sensitivity
The detector provides a sensitivity test that allows you to check
the detector sensitivity using a test magnet and the LED
indicator on the detector as follows:
1. Hold the test magnet up to the raised TEST letters on the
top of the detector until alarm notification. See Figure 7.
Once the test starts, remove the magnet. The alarm LED
flashes one to nine times. The LED flashes every 3 seconds
while in the test mode.
2. Count the number of times the LED flashes and use the
following table to determine the status of the detector
sensitivity and what action to take, if any.
After the test:
If the sensitivity is within limits and all other tests pass, the
detector goes back to the normal 9 second LED flash mode.
If the sensitivity is not within limits or an unserviceable
hardware fault has been detected, the detector LED flashes
every 3 seconds until the detector is serviced.
Cleaning the Detector
Clean the detector cover with a dry or damp (water) cloth as
needed to keep it free from dust and dirt.
When necessary, clean the detector interior and replace the optical
chamber as follows:
1. Disconnect the alarm notification appliances, service release
devices and extinguishing systems.
2. Slide a flat-blade screwdriver into the slot on the detector cap
and gently push the handle down to pry the cap up and off.
See Figure 8.
3. Press in on the sides of the optical chamber and pull it up and
away from the detector and discard. See Figure 9.
4. Use a vacuum to remove dust and dirt from the optical
chamber base.
5. Line the new optical chamber up with the optical chamber
baseand snap it down into place.
6. Replace the detector cap as follows:
-Line the tabs on the cap with the slots on the detector.
-Insert the cap into the smoke detector and turn clockwise
approximately 15 degrees. It should snap firmly into place.
7. Test the detector sensitivity (See Testing the Detector
Sensitivity).
8. Reconnect all alarm notification appliances, service
release devices and extinguishing systems.
Important: The control panel alarm and all auxiliary functions
should be verified for a complete test of the system.
Optical chamber base
Flashes Indications Action
1 Unserviceable Reset unit and rerun sensitivity
hardware fault test. If the error persists, replace
detected. the unit.
2-3 Detector is Clean the unit per instructions.
not sensitive Reset unit and rerun sensitivity
enough. test. If the error persists, replace
the unit.
4-7 Detector is within N/A
normal sensitivity
range.
8-9 Detector is Verify that the smoke chamber
too sensitive. is snapped down securely. Clean
the unit.
521CXT-ID
SQUEEZE
HERE
Figure 9. Removing the optical chamber
Optical chamber
Detector cap
3
Maintaining the Detector
These smoke detectors are designed for easy field service and
maintenance. When installed and used properly, they require
minimal maintenance.
The smoke detector should be tested monthly. See Testing the
Detector Sensitivity and Smoke Testing the Detector.
Fire Prevention and Escape
The purpose of an early warning smoke detector is to detect the
presence of fire in its early stages and sound an alarm giving the
occupants time to exit the premises safely.
Avoid Fire Hazards
No detection device can protect life in all situations. Therefore,
safeguards should be taken to avoid potentially dangerous
situations as follows:
• Do not smoke in bed.
• Do not leave children home alone.
• Never clean with flammable liquids such as gasoline.
• Properly store materials. Use general good housekeeping
techniques to keep your home neat and tidy. A cluttered
basement, attic, or other storage area is an open invitation to
fire.
• Use combustible materials and electrical appliances carefully
and only for their intended uses. Do not overload electrical
outlets.
• Do not store explosive and/or fast burning materials in your
home.
• Even after proper precautions have been taken, fires can start.
Be prepared.
• If you have children and/or physically challenged people
residing in your household, use window decals to help
emergency personnel identify the sleeping quarters of these
individuals.
WARNING
Smoke detectors CANNOT provide warnings for
fires resulting from explosions, smoking in bed
or other furniture, ignition of flammable liquids,
vapors and gases, children playing with matches
or lighters.
Failure to properly install, test, and maintain a
smoke detector system may cause it to fail
resulting in loss of life and/or property.
In Case of Fire
In the event of a fire, you should do the following:
• Leave immediately. Don’t stop to pack or search for
valuables.
• In heavy smoke, hold your breath and stay low , crawl if
necessary. Theclearest air is usually near the floor.
• If you have to go through a closed door, carefully feel the
door and door knob to see if undue heat is present. If they
seem cool, brace your foot against the bottom of the door with
your hip against the door and one hand against the top edge.
Open it slightly. If a rush of hot air is felt, slam the door
quickly and latch it. Unvented fire tends to build up
considerable pressure. Be sure all members of the household
realize and understands this danger.
• Use your neighbor’s phone or a street fire alarm box to call
the fire department. The job of extinguishing the fire should
be left to the professionals.
Be Prepared
Practice the following steps to prepare you and your family in the
event of a fire:
• Perform fire drills regularly. Use them to assure recognition of
an alarm signal.
• Draw a floor plan and show two exits from each room. It is
important that children be instructed carefully, because they
tend to hide in times of crisis.
• Establish one meeting place outside the home. Insist that
everyone meetthere during an alarm. This will eliminate the
tragedy of someone reentering the house for a missing
member who is actually safe.
4
521CXT-ID
Limited Warranty
The 521CXT-ID is a GE Security product. The manufacturer
warrants this smoke alarm to be free from defects in material and
workmanship under conditions of normal use for a term of 3 years
from the date of manufacture.
During the warranty period, if a GE Security product or any of its
components becomes defective, it will be repaired or replaced
without charge. Out-of-warranty units will be repaired at the
discretion of the manufacturer, if not, a card will be forwarded to
the customer suggesting a replacement unit and the cost of that unit.
This warranty does not apply to units which have been subject to
abuse, misuse, negligence or accident, or to which any modifications, alterations or repairs have been made or attempted.
This warranty is extended only to the original purchaser of the
smoke alarm and may be enforced only by such person. During the
warranty period, if the alarm or any warranted components thereof
becomes defective, at the manufacturer’s discretion, it will be
replaced or repaired without charge if returned in accordance with
the following instructions:
Obtain a Return Authorization Number by calling 1-800-648-7422
or 503-692-4052, then carefully pack it in a well padded and
insulated carton and return, postal charges prepaid to:
Customer Service RMA#
GE Security
12345 SW Leveton Drive
Tualatin, OR 97062-9938
A note should be included advising the nature of the malfunction.
Care must be exercised in the proper packing of alarms returned
under this warranty as GE Security will not be responsible for
warranty repairs to equipment damaged because of improper
packing.
The above warranty is in lieu of all other express warranties,
and implied warranties of merchantability and fitness for a
particular purpose are limited in duration for a period of 3
years from the date of manufacture. Under no circumstances
shall manufacturer be liable to the purchaser or any other
person for incidental or consequential damages of any nature,
including without limitation damages for personal injury or
damages to property, and however occasioned, whether alleged
as resulting from breach of warranty by manufacturer, the
negligence of manufacturer or otherwise. Manufacturer’s
liability will in no event exceed the purchase price of the
product. Some states do not allow limitations on how long an
implied warranty lasts, or the exclusion or limitation of
incidental or consequential damages, so the above limitations
and exclusions may not apply to you. Unless a longer period is
required by applicable law, any action against manufacturer in
connection with this smoke alarm must be commenced within
one year after the cause of action has occurred.
No agent, employee or representative of the Manufacturer nor any
other person is authorized to modify this warranty in any respect.
Repair or replacement as stated above is the exclusive remedy of the
purchase hereunder. This warranty gives you specific legal rights
and you also have other rights which vary from state to state.
WARNING
Limitations of smoke detectors
Smoke detectors are very reliable, but may not work under all
conditions. No smoke detector provides total protection of life or
property. Smoke detectors are not a substitute for life insurance.
Smoke detectors require a source of power to work.
This smoke detector will not operate and the alarm will not sound
if the detector is not installed properly.
Smoke detectors may not be heard. A sound sleeper or someone
who has taken drugs or alcohol may not awaken if the detector is
installed outside a bedroom. Closed or partially closed doors and
distance can block sound. This detector is not designed for the
hearing impaired.
Smoke detectors may not always activate and provide warning
early enough. Smoke detectors only activate when enough smoke
reaches the detector. If a fire starts in a chimney, wall, roof, on the
other side of closed doors, or on a different level of the property
enough smoke may not reach the detector for it to alarm.
Smoke detectors are a significant help in reducing loss, injury
and even death. However , no matter how good a detection
device is, nothing works perfectly under every circumstance
and we must warn you that you cannot expect a smoke
detector to ensure that you will never suffer any damage or
injury.
521CXT-ID
5
Specifications
ty
Operating voltage range 8.5-33VDC
Typical average standby current 360
A verage alarm current 500
Peak alarm current 1.5mA
Peak current 1.5mA
Photoelectic sensitivity range 1.8%/ft to 3.54%/ft
Operating termperature 32° to 100°F (0° to 38°C)
Storage temperature -4° to 158°F (-20° to 70°C)
Operating humidity range 0 to 95% non-condensing
Color White head and base
Field wiring size 14-22 AWG max. two wires per terminal
Heat detector specifications Rate-of-rise, 15
Absolute alarm temperature 135
Automatic drift compensation adjustment 0.5%/ft. max
Detector head dimensions 5 in. (12.7cm) diameter; 2 in. (5cm) deep
Mounting dimensions 4.75 in. (12.1cm) diameter; 0.3 in. (0.8cm) deep
Power-up time The unit is ready to sample smoke after 4 blinks or 20 seconds
Listings UL 268, CSFM
µA (12/24V) (used for system battery calculation)
µA (used for system battery calculation)
° F/min and >105° F (8.3° C/min and >40.6° C)
°F ± 9°F (57.2°C ± 5°C)
FCC Compliance
This device complies with Part 15 of the FCC rules. Operation
is subject to the following two conditions:
1 This device may not cause harmful interference.
2 This device must accept any interference received,
including interference that may cause undesired operation.
Product Ordering
Product Description
521CXT-ID Addressable 2-wire, photoelectric smoke detector, multi-criteria algorithms, fixed/
rate-of-rise heat, for use with the NX-2192 PinPoint® Bus Interface
40 1 Test magnet in plastic shell for pole mounting
SM-200 Smoke! in a can
21 1 Replacement optical chambers (set of 10)
® (canned smoke) for functional testing of smoke detectors
g
GE Securi
GE Security
12345 SW Leveton Drive
Tualatin, OR 97062
503-692-4052
USA & Canada: 800-547-2556
Tech Support
800-648-7424
FaxBack: 800-483-2495
www.GESecurity.com
1036871 Rev C 03/04
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