Page 1
Installation Instructions
Model DB-HR
Detector Base
DB-HR RELAY BASE
LINE 1
REMOTE RELAY BASE
MODEL DB-HR
TO INITIATING CIRCUIT
OF SIEMENS INDUSTRY,
INC. CONTROL PANEL
Figure 1
5
6
LINE 2
LINE 1 AND LINE 2 CAN BE EITHER LINE OF THE LOOP.
RELAY*
NO
CONTACTS
C
NC
3A, 120 VAC
3A, 30 VDC
DB-HR Wiring Diagram Using HFP-11 Series and SFP-11 Series Detectors
DETECTOR AND BASE PLACEMENT
Detector and base locations shall follow the drawings provided or approved
by Siemens Industry, Inc. or its authorized distributors. This is extremely
important! The detector placements shown on these drawings were chosen
after a careful evaluation of all facets of the protected area. When drawings
are not available, refer to Detector Placement section of detector Installation/
Wiring Instructions and to NFPA 72, National Fire Alarm Code and CAN/ULCS524.
BASE WIRING
TO NEXT DEVICE
LINE 1
DO NOT USE AN END
OF LINE DEVICE
*THE RELAY CONTACTS ARE
SHOWN IN THE NON-ALARM/
SYSTEM RESET CONDITION.
TO NEXT DEVICE
DO NOT USE AN END
LINE 2
OF LINE DEVICE
The Model DB-HR from Siemens Industry, Inc. is a polarity insensitive detector
base and works with HFP-11, HFPT-11, HFPO-11, SFP-11*, SFPT-11* and SFPO11* detectors only. Detectors should be interconnected as shown in Figure 1
and wired to the DLC (refer to DLC Installation Instructions, P/N 315-033090), FSDLC (refer to FS-250 Installation, Operation and Maintenance Manual, P/N 315-
049353) or FDLC (refer to FS-250C Installation, Operation and Maintenance
Manual, P/N 315-049589C), as applicable. Line 1 and Line 2 can be either line of
the loop. Note any limitations on the number of detectors and restrictions
on the use of remote devices permitted for each circuit.
*SFP-11, SFPT-11 and SFPO-11 detectors are approved for use in Canada only.
Siemens Industry, Inc.
Building Technologies Division
Florham Park, NJ
P/N 315-033220-5
Siemens Building Technologies, Ltd.
Fire Safety & Security Products
2 Kenview Boulevard
Brampton, Ontario
L6T 5E4 Canada
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DETECTOR MOUNTING USING THE DB-HR BASE
The detector is provided with a separate base which attaches to a standard 4
inch square or a 4 inch octagonal electrical box, with the box size and depth
required by the NEC for the number and size of conductors used. Wire size:
max – 14 AWG, min – 18 AWG.
Refer to Figure 2.
1. Route all wires outward from outlet box.
2. When the ALARM LED viewing is critical, position the LED mark in the
base in the intended direction.
3. Route wires through the hole in the center of the base and mount base
to outlet box. Make connections directly to the base terminals. Refer to
Figures 1 and 2 for details.
4. After all bases are installed, check wiring integrity.
5. To insure proper installation of the detector head into the base:
a. Route wires away from connector terminals.
b. Take up all slack in the outlet box.
c. Properly dress and position all wires flat against the base.
d. Check that screw terminals are tight.
ALARM LED
LOCATION WITH
DETECTOR
INSTALLED
IN BASE
MOUNTING
HOLE COVERS
Figure 2
Mounting the Base
P/N 315-033220-5
T
N
I
A
P
T
O
N
O
D
6
5
1b
1a
BASE
MOUNTING
HOLES
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