NAPCO GEM-SM Installation Instructions Manual

INSTALLATION INSTRUCTIONS INSTALLATION INSTRUCTIONS

GEM-SMKGEM-SMK

NAPCO SECURITY SYSTEMS,NAPCO SECURITY SYSTEMS,

333 BAYVIEW AVENUE333 BAYVIEW AVENUE

AMITYVILLE, NEW YORKAMITYVILLE, NEW YORK

Description.Description. The GEM-SMK is a high-quality photoelec-

tric smoke detector with built-in supervised digitally-coded
radio transmitter. It is compatible with Napco’s GEM-RECV
Series supervised security receivers that monitor alarms,
restores, low battery and status.

The GEM-SMK sounds a local alarm as soon as smoke is
detected and the transmitter will send an alarm signal to the
supervised receiver. The alarm signal will be repeated every
10 seconds thereafter as long as smoke is still present. A
restore report will be sent when the smoke-detection cham-

Step 1. Remove the mounting plate.Step 1. Remove the mounting plate. Remove the GEM­SMK mounting plate by turning the plate counterclockwise
and pulling it up.

INC.INC.

1170111701

Digital Smoke DetectorDigital Smoke Detector

© Napco 1998 WI750A 12/96

SupervisedSupervised

ber clears. Supervisory status reports are sent from the
GEM-SMK every hour.

Coding switches are not required or used in the GEM­SMK. Each transmitter is assigned a unique identification
code number at the factory.

The smoke detector and transmitter are powered by two
9-volt alkaline batteries (supplied) which can power the unit
for up to two years. If the battery voltage drops below
normal, a low-battery report will be sent to the receiver with
any status or alarm transmission. If a low-battery condition
is indicated, replace both batteries. Note:Note: Temperature and
humidity extremes may reduce the life of the battery.

Step 3. Install batteries.Step 3. Install batteries. Connect the two 9-volt alkaline
batteries and place them into the battery holding clips.

Step 2. Identify components.Step 2. Identify components. Examine the GEM-SMK

to identify the component locations.

Step 4. Pick smoke-detector location.Step 4. Pick smoke-detector location. Referring to the
NFPA standard on page 3, select a good location to mount
the GEM-SMK. Mounting the GEM-SMK on foil-backed

wallpaper or on metal single-gang electrical box is not
recommended because the radio range will be reduced.

Step 5. Install mounting plate.Step 5. Install mounting plate. Use the two screws and
anchors provided to attach the mounting plate to the wall
or ceiling. Alternatively, the mounting plate may be at­tached to a plastic single-gang electrical outlet box.

Step 6. Map the GEM-SMK Transmitter.Step 6. Map the GEM-SMK Transmitter. Referring to
the instructions for the panel and keypad in use, enter the
following:

• the zone to which the transmitter will be mapped;

• the 6-digit identification number/1-digit checksum

number printed on the transmitter (include all numbers
and/or letters and leading zeros, if any); and

• the transmitter point number (‘‘1’’).

Step 7. Attach the GEM-SMK to mounting plate.Step 7. Attach the GEM-SMK to mounting plate.

Match up alignment tabs on detector and plate. Turn
detector clockwise until it locks into place.

Step 8. Test system with unit mounted.Step 8. Test system with unit mounted. If the system
is monitored, notify central station of impending test. Press
and hold the test button. Keep the button depressed for
30 seconds after the local alarm sounds. Verify that the
GEM-SMK triggers the correct zone on the control panel
and that the correct report is sent to the central station.

Maintenance. Maintenance. To clean the smoke detector, vacuum the
outside of the unit at least once a year (preferably every six
months) using a soft brush attachment. Do not attempt to