D400-06-00
3
I56-286-03
2. Line up arrows on the detector with arrows on the
mounting bracket.
3. Turn the detector clockwise until the detector clicks into
place.
4. After all detectors have been installed, apply power to
the control unit.
5. Test the detector as described under TESTING.
6. Reset the detector at the System Control Panel.
7. Notify the proper authorities the system is in operation.
CAUTION
Dust covers provide limited protection against airborne
dust particles during shipping. Dust covers MUST be re-
moved before the smoke detectors can sense smoke. Re-
move sensors before beginning heavy remodeling or
construction.
Testing
Before testing, notify the proper authorities that the smoke
detector system is undergoing maintenance, and therefore
the system will temporarily be out of service. Disable the
zone or system undergoing maintenance to prevent un-
wanted alarms.
Before testing the detector, look for the presence of the
flashing LED. If it does not flash, power has been lost to the
detector (check the wiring), or it is defective (return for re-
pair).
Detectors must be tested after installation and following
periodic maintenance. The 2412 and 2424 may be tested as
follows:
A. Recessed Test Switch
1. A test switch is located on the detector housing (see
Figure 4).
2. Push and hold the recessed test switch with a 0.1 inch
maximum diameter tool.
3. The detector’s LED should light within 5 seconds.
B. Calibrated Test Card (Model R59-18-00)
TEST MODULE
SOCKET
LED
RECESSED TEST
SWITCH
PUSH RECESSED SWITCH WITH
A .1" MAX. DIAMETER TOOL
Figure 4. Top and side views showing position of recessed test switch:
A78-1393-00
1. Remove the detector cover by placing a small-bladed
screwdriver in the side slot of the detector cover,
twisting slightly until the cover can be turned coun-
terclockwise for removal.
2. Insert the NO ALARM end of the test card fully into
the test slot (see Figure 5), then slide it counterclock-
wise until it stops.
3. The detector should not alarm after 20 seconds.
4. Remove the test card by sliding it clockwise before re-
moving, then insert the ALARM end.
5. The LED should latch on within 20 seconds, indicat-
ing alarm and annunciating the panel.
6. Put the cover back by gently rotating it clockwise un-
til it locks in place.
C. Test Module (System Sensor Model No. MOD400R)
The MOD400R is used with an analog or digital voltme-
ter to check the detector sensitivity as described in the
MOD400R manual.
D. Aerosol Generator (Gemini 501)
Set the generator to represent 4%/Ft. to 5%/Ft. obscura-
tion as described in the Gemini 501 manual. Using the
bowl shaped applicator, apply aerosol until unit alarms.
Detectors that fail these tests should be cleaned as de-
scribed under MAINTENANCE and retested. If the detec-
tors still fail these tests, they should be returned for
repair.
E. Direct Heat Test (Models 2412TH & 2424TH only)
To test the bi-metallic thermal collector on the Models
2412TH and 2424TH, use a low powered heat gun or
blow dryer, aiming the heat source across the detector.
Hold the heat source about 12 inches (30 cm) from the
detector to avoid damaging the plastic. When the heat
rises to greater than 135
°
F, the detector will latch in
alarm. After the test, the bi-metallic collector will self-re-
store.
Notify the proper authorities that the system is back on
line when tests are complete.
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