Siemens DT-11 Installation, Operation And Maintenance

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 environ-
mental factors including ambient temperature fluctua-
tion, 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.
P/N 315-095429-5
SPECIFICATIONS
Environmental
Temperature: 32 F (0
O
Humidity: Up to 93% RH, non condensing
Air Pressure: No effect.
Alarm Temp: 135 F (57
O
Electrical
Voltage:
Ripple:
Supervisory Current: 110μA max
Alarm Current:
Start-up Time:
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.
Building Building T T T T T ec Building
Building Building
C) to 100 F (38 C).
O O O
C)
O
16-27 VDC
3V peak-to-peak
33-50mA
50 seconds max
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