3
5.
Clean dust from the detector cover, foam
screen, sensing chamber and labyrinth using
a brush, or by blowing with compressed air.
CAUTION:
Do not use a compressed air
supply that may contain an oil
residue.
WARNING:
Do not remove or loosen the two
screws on the rear of the detector,
or calibration will be lost.
NOTE:
The insect screen and labyrinth may be
replaced with new parts, rather than be
cleaned. Contact Siemens Building
Technologies, Inc.'s Product Service to
order Detector Maintenance Kit, Model
DMK-11.
NOTE:
Do not disconnect the thermal wires
from the detector.
6.
Reassemble the detector by reversing the
steps used for disassembly, and reinstall in
its base.
7.
Test the detector. (See Detector Testing
section of this instruction.) Reset the control
panel zone after each alarm.
NOTE:
After applying or momentarily
interrupting power to the detector, it is
normal for it to take as long as 50
seconds for the LED to begin flashing
to indicate its operating status.
Figure 2 Disassembling of Photochamber
8.
When all service has been completed, notify
personnel (See Step 1) that system service
has been completed.
CAUTION
NO FIELD REPAIRS OF THE DETECTORS
SHOULD BE ATTEMPTED. THE DETECTORS
ARE FACTORY REPAIRABLE ONLY.
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