
Fire Safety
Installation Instructions
Model DB-ADPT
Detector/Base Adapter
The SIEMENS Model DB-ADPT detector/base adapter
interfaces Series 11 detectors with previously installed
DB-3S bases. For Series 3 air duct detector models
AD-3P, AD-3ILP, and SA-3P, use Series 11 Air Duct
Update Kit AD-11UK, which contains both the DB-ADPT and
the required DA-304 air duct cover for Series 11 detectors.
WARNING:
When replacing a detector with a different model, be
aware that existing detector accessories connected
to the base or air duct housing that were compatible
with the old detector may not be compatible with the
new detector. Always read the Installation InstrucĀtions accompanying the detector to determine detecĀtor and accessory compatibility.
Siemens Building Technologies, Inc.
8 Fernwood Road
Florham Park, New Jersey 07932
P/N 315-094200-6
Siemens Building Technologies, Ltd.
2 Kenview Boulevard
Brampton, Ontario L6T 5E4 CN

INSTALLATION
For DB-3S Bases:
1. Remove the existing detector from the DB-3S base.
2. To install the DB-ADPT adapter into the DB-3S base,
align the notch in the outer flange of the adapter to the
raised surface on the outer ring of the base (Refer to
Figure 1).
3. Push the adapter into the base and rotate clockwise to
engage the electrical connections. The adapter will
automatically stop and lock into place.
4. To make the adapter to DB-3S interface tamperproof
in the base, use the Model DB-LK.
5. Install a Series 11 detector following the installation
instructions included with the detector.
NOTE: If it becomes necessary to remove the
adapter, push the adapter up into the base
while rotating the adapter counterclockwise.
Continue to rotate counterclockwise until stop
is reached. Then pull downward to disengage
from the base. When the DB-LK lock is used,
disengage the locking mechanism prior to
removing the adapter.
2