System Sensor DH500ACDC Installation And Maintenance Instructions Manual page 8

Figure 7. Testing detector alarm:
DETECTOR
HEAD
TEST
LOCATOR
Step 8. Install the Cover
Install the cover using the four screws. Be certain filters are
installed as specified in Step 6. Make sure that the cover fits
into the base groove and that all gaskets are in their proper
positions. Tighten the four cover screws to 10 in-lbs.
Step 9. Perform the Final System Check
Position the test magnet as shown in Figure 7. The LEDs
on the detector should light. Any accessory LED(s) should
also light and the system control panel should indicate an
alarm condition.
Periodic Maintenance Requirements
Air duct smoke detectors should be maintained at least
once a year – more often if the detector heads become
obviously dirty. The detectors must also be cleaned imme-
diately after a fire. Failure to properly maintain air duct
smoke detectors may cause unnecessary false alarms.
Figure 9. RTS451/RTS451KEY Test Coil Installation:
D500-07-00
DUCT
HOUSING
TEST
RESET
MAGNET
LOCATOR
PAINTED SIDE
TOWARD HOUSING
TEST COIL
DETECTOR
HEAD
Figure 8. Detector head removal:
DETECTOR
HEAD
TWIST
CLOCKWISE
TO INSTALL
H0243-00
It is recommended that a permanent Detector Test Log be
set up and maintained, with a record for each individual
smoke detector in each building. Each detector should be
clearly described, with information on the type of detector,
the model number, the serial number (if any), the location,
and the type of environment. Data entries should include
test dates, type of test mode, test results, maintenance, and
comments. A Detector Test Log is included at the end of
this manual.
Recommended Detector Maintenance Procedure
NOTE: Notify the proper authorities that the smoke detec-
tor system is undergoing maintenance and will be
temporarily out of service. Disable the zone or sys-
tem undergoing maintenance to prevent unwanted
alarms and possible dispatch of the fire depart-
ment.
8
TWIST
COUNTERCLOCKWISE
TO REMOVE
DUCT
HOUSING
H0244-00
H0245-0
I56-432-11R