2
Refer to the Initiating Devices chapter of NFPA
Standard 72 for Location and Spacing requirements
for specific types of construction; e.g. beam,
suspended, level, sloped and peaked ceilings.
TEMPERATURE AND HUMIDITY
The temperature range for the ILI-1 Series is 32°F
(0°C) to 100°F (38°C). The four models can each be
used in environments where the humidity does not ex-
ceed 93% (non-condensing).
PRESSURE
Normal changes of atmospheric pressure have a
negligible effect on detector sensitivity. However, the
lower air pressure at higher altitudes does have some
effect on the sensitivity of ionization type detectors.
Refer to the following table.
APPLICATIONS
Model
Velocity
Range
(ft/min)
Altitude
Range
(feet)
Application
ILI-1
0-300
0-4000
Open area
ILI-1H
0-300
3000-8000
Open area
ILI-1A
0-1200
0-4000
Open area/Computer facilities/
Air duct spots
ILI-1AH
0-1200
3000-8000
Open area/Computer facilities/
Air duct spots
SPECIAL NOTE - HIGH STOCKPILING
In general, detector placement for high stockpiling re-
quires closer spacing, depending on the nature of the
stock, its stored height, and the height of the building.
Newer technologies recommend additional detector
locations at tiered, lower levels. Detector placement
for this type hazard requires a judgment factor that
can only be provided by experienced, qualified
personnel.
DETECTOR WIRING
Siemens Building Technologies, Inc. detectors should
be interconnected as shown in Figure 1 and wired to
the control panel by following the
Wiring Diagram
installed on the inside face of the control panel or in
the Control Panel Manual provided. Note any
limitations on the number of detectors permitted on
each circuit.
DETECTOR MOUNTING
The detector has a separate base which attaches to a
standard 4 inch square, 4-11/16 inch square, 4 inch
octagonal, or single gang outlet electrical box. The depth
of the box is determined by the NEC for the number and
size of the conductors used. A finishing trim ring (Model
RA-ADB) is available for bases using a 4 inch square box.
TO MOUNT:
• Route all wires outward from outlet box.
• Place the detector so that the ALARM LED is
normally visible by positioning the LED mark in the
base in the necessary direction. (See Figure 2.)
• Mount base to outlet box and
route wires through the hole
in the center of the base.
Make connections directly
to the base terminals. Refer
to Figure 1 for details.
• When mounting the
detector base and routing
wires through the cutouts in
the air shield, make sure
the shield is sealed against
air leaks. Open the cutouts
only as much as required.
• Remove factory installed
jumper in base between
terminals 1a and 1b.
Figure 2
Detector Installation
Figure 1
ILI-1, ILI-1H, ILI-1A, and ILI-1AH Installation and Wiring Diagram
