Page 1
Installation/Wiring Instructions
Model DT-11 Thermal Detector
These instructions are written in accordance with the
installation guidelines of NFPA No. 72, National Fire
Alarm Code, and CAN/ULC-S524, The Installation of Fire
Alarm Systems.
CAUTION
Detection Device Storage
DO NOT install this detection device until all
construction is completed.
DO NOT store this detection device where it can
be contaminated by dirt, dust, or humidity.
DETECTOR PLACEMENT
Locate the DT-11 on the ceiling, at least 4 inches from
the side walls. For an ideal, smooth ceiling condition,
place the detectors at a maximum center spacing of
50 feet (2500 square feet), 25 feet from side walls or
room partitions. For FM Approved installations this
detector has an RTI rating of QUICK, which allows a
maximum center spacing of 20 feet (400 square feet).
Locate detectors 10 feet from side walls or room
partitions.
Actual job conditions and sound engineering judgment
to determine detector spacing. Consider environmental factors including ambient temperature fluctuation, and the nature of the fire hazard. Room or area
configuration and ceiling type (sloped or flat, smooth
or beamed) also dictates placement.
Should questions arise regarding detector placement,
follow the drawings provided and/or approved by
Siemens Industry, Inc., or by its authorized distributors.
This is extremely important! The detector placements
shown on these drawings were chosen after a careful
evaluation of the area being protected. Siemens
Industry, Inc.'s extensive experience in design of the
system assures the best detector placement by
following these drawings.
SPECIFICATIONS
Environmental
Temperature: 32OF (0OC) to 100OF (38OC).
Humidity: Up to 93% RH, non condensing
Air Pressure: No effect.
Alarm Temp: 135OF (57OC)
Electrical
Voltage: 16-27 VDC
Ripple: 3V peak-to-peak
Supervisory Current: 110μA max
Alarm Current: 33-50mA
Start-up Time: 50 seconds max
DETECTOR WIRING
The DT-11 should be connected as shown in Figure 1
using the separate mounting base, Model DB-11.
Follow the control panel wiring connection drawing
installed on the inside face of each control panel cover.
See DB-11 instruction, P/N 315-094193, for base
mounting. Duplicate wiring information is also in the
Installation, Operation, and Maintenance Manual
provided with every control panel. Note any
limitations on the number of detectors and
restrictions on the use of remote devices
permitted for each circuit.
INSTALLATION / REMOVAL OF DETECTOR
TO INSTALL:
• Align LED in detector with LED symbol on base
and insert detector into base.
• Rotate detector counterclockwise while gently
pressing on it until the detector drops fully into base.
• Then rotate the detector clockwise until it stops and
locks in place. Insert optional locking screw (Order
Model LK-11).
TO REMOVE:
Loosen locking screw, if installed. Then rotate the
detector counterclockwise until stop is reached. Pull
detector out of base.
P/N 315-095429-5
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Page 2
DB-11
+
TO INITIATING
CIRCUIT OF
SIEMENS
INDUSTRY, INC.
CONTROL PANEL
[NO REMOTE DEVICE]
(SEE CAUTION 1)
1a
1b
5
6
-
CAUTION:
1. Do not use looped wire under base
terminal 5. Break wire run to provide
supervision of connection.
2. When a remote relay is used to
control a critical system function,
the relay and its associated detector
and optional module(s) must be the
ONLY devices on the initiating
circuit.
[WITH REMOTE DEVICE(S)]
1b
6
5
SEE REMOTE DEVICE INSTRUCTIONS
FOR WIRING DETAILS:
DEVICE
RR-11
RLC-11, RLW-11
RSAC-11, RSAW-11
ADB-11
MULTIPLE REMOTE DEVICES
If remote devices are supported by the initiating circuit,
each detector/base may have up to 2 remote devices
with the following configurations and restrictions only:
Remote
Device 1
RR-11
RR-11
RLC-11, RLW-11
RLC-11, RLW-11
DB-11
Remote
Device 2
RLC-11, RLW-11
RSAC-11, RSAW-11
RSAC-11, RSAW-11
RLC-11, RLW-11
INSTALLATION
INSTRUCTIONS
P/N 315-094924
P/N 315-094925
P/N 315-094926
P/N 315-096162
Restrictions
See Caution 2
See Caution 2
Wire from base to
RSAC-11/RSAW-11
to RL-11
1b
5
END OF
DEVICE
POLARITY
APPLICABLE)
Figure 1 Installation and Wiring Diagram for Conventional Detector
+
-
LINE
(NOTE
WHEN
LED INDICATOR OPERATION
The DT-11 contains an LED indicator capable of
flashing either one of three distinct colors: green,
yellow, or red. Every seven seconds, the
microprocessor-based detector checks that its critical
electronics are operating.
Based on the results of these checks, the LED
indicator flashes as follows:
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CAUTION: UNDER NO CIRCUMSTANCES
IS THE DETECTOR HEAD TO BE DISASSEMBLED.
NO FIELD REPAIRS SHOULD BE ATTEMPTED. THE
DETECTORS ARE F ACT OR Y REPAIRABLE ONLY.
DO NOT PAINT
The detector/base plastic is marked DO NOT P AINT .
This is intended to prohibit painting during routine
maintenance of the occupancy which can affect
proper operation of the detector.
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TESTING AND MAINTENANCE
TEST
Testing requires no test equipment. A green flash of
the detector LED about every seven seconds
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indicates that the DT-11 is operating properly. The
minimum test schedule may be found in the current
edition of NFPA 72, Chapter 7 for installations in the
U.S., and CAN/ULC-S537, The Verification of Fire
Alarm Systems, for installations in Canada.
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Siemens Industry, Inc.
Building Technologies Division
Florham Park, NJ
Siemens Canada Limited
Building Technologies Division
2 Kenview Boulevard
Brampton, Ontario L6T 5E4 Canada
P/N 315-095429-5
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