2
HFPT-11 DETECTOR PLACEMENT
Locate Model HFPT-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). Locate detectors 25 feet from side walls or room
partitions. For FM Approved installations this device has an
RTI rating of FAST. Use maximum center spacing of 25 feet
(625 square feet). Locate detectors 12.5 feet from side walls
or room partitions.
Actual job conditions and sound engineering judgment must
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 impor-
tant! 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.
Temperature – Humidity – Pressure – Air Velocity
The operating temperature range for the HFP-11 and HFPT-11
detectors is 32°F (0°C) to 100°F (38°C). The thermal alarm
temperature is rate compensated at 135°F (57°C).Use these
detectors in environments where the humidity does not ex-
ceed 93% (non-condensing). Normal changes of atmospheric
pressure do not affect detector sensitivity. For HFP-11 open
area 0-1200 ft/min applications, use the appropriate applica-
tion from the FirePrint ASD application list. Use the ASD duct
application for 300-4000 ft/min applications a) in above-ceil-
ing and under-floor plenums, b) inside an air duct, and c) in an
air duct housing using sampling tubes. Follow detector spac-
ing and location requirements in NFPA 72 Chapter 5 for
High
Air Movement Areas
and
Control of Smoke Spread.
When installing Model HFP-11 in existing installations with an
existing duct detector housing, order an AD-11UK Air Duct
Upgrade Kit DA-304, P/N 500-695967 and use it in that installation.
This kit includes the required housing cover, P/N 305-095676.
Do not use Model HFP-11 with any other air duct cover.
For air duct and open area applications, the
HFP-11 smoke sensitivity range is indicated on its name-
plate. For application/sensitivity settings, refer to the
FireFinder-XLS System Manual, P/N 315-033744, or the
FS-250 Manual, P/N 315-049353.
OPERATION
LED Indicators
The Model HFP-11 / HFPT-11 contains an LED indicator ca-
pable of flashing either one of three distinct colors: green,
yellow, or red. During each flash interval, the microprocessor-
based detector checks the following:
•
For smoke in its sensing chamber.
•
That its smoke sensitivity is within the range indicated
on the nameplate label.
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•
That its critical smoke sensing electronics are
operating.
Based on the results of these checks, the LED indicator flashes
the following:
DETECTOR PROGRAMMING
Each detector on a loop must be programmed to respond to
a unique system address between 001-252.
•
To program the detector address, use the Model DPU
Device Programming Unit. Refer to the DPU Manual,
P/N 315-033260.
•
Record the loop and device number (system address)
for the detector on the detector label and on the base to
prevent installing the detector in the wrong base. The
optional DPU label printer can be used for this purpose.
Detector Guard Programming
When using the DGH-11 or the STI 8100IS detector guards
with with the FireFinder-XLS system, program the HFP-11 for
DUCT Application using the Zeus Programming Tool. For FS-
250 systems, program the HFP-11 for DUCT Application us-
ing the FS-CT2 Configuration Tool.
System Configuration
Model HFP-11 can be programmed to optimize environmental
response using Application Specific Detection (ASD). All param-
eters, such as Sensitivity, Pre-Alarm and Advanced Environmen-
tal Algorithms are downloaded to the detector from the FireFinder-
XLS or FS-250 control panel. For air duct applications, the proper
ASD application (DUCT)
must
be selected. Refer to the ZEUS
Programming Tool Manual, P/N 315-033875, or the FS-250 In-
stallation, Operation and Maintenance Manual, P/N 315-
049353, as applicable.
WIRING
Detector bases for Model HFP-11/HFPT-11 should be con-
nected as shown in Figure 2.
Detector Mounting
To ensure proper installation of the detector head into the base,
be sure the wires are properly dressed at installation:
•
Position all wires flat against the base.
