GE Security 521CXT-ID Installation Guide

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