
(57.2°C) fixed temperature heat detector.
Please refer to the operation manual for the UL listed
control unit for specific operation of the IDP-Photo, IDPPhoto-T and IDP-Acclimate.
The IDP-Photo, IDP-Photo-T and IDP-Acclimate require
compatible addressable communications to function
properly. Connect these sensors to listed-compatible
control panels only.
IDP-Photo, IDP-Photo-T and
IDP-Acclimate Intelligent
Photoelectric Smoke Sensors
Installation and Maintenance
Instructions
SPECIFICATIONS
Operating Voltage Range: 15 to 32 VDC
Standby Current: 300µA @ 24 VDCMax.
Alarm Current (LED on): 6.5 mA @ 24 VDC
Operating Humidity Range: 10% to 93% Relative
Humidity, non condensing
Operating Temperature Range: 0° to 49°C (32° to 120°F);
IDP-Photo 0° to 38°C
(32° to 100°F); IDP-
Photo-T, IDP-Acclimate
Height: 2.0 inches (51mm)
installed in SS-B6 Base
Diameter: 6.1 inches (155 mm)
installed in SS-B6 Base
4.1 inches (104 mm)
Weight: 5.2 oz. (147 g)
This sensor must be installed in compliance with the
control panel system installation manual. The installation
must meet the requirements of the Authority Having
Jurisdiction (AHJ). Sensors offer maximum performance
when installed in compliance with the National Fire
Protection Association (NFPA); see NFPA 72.
installed in B501 Base
SPACING
Silent Knight recommends spacing sensors in compliance
with NFPA 72. In low air flow applications with smooth
ceilings, space sensors 30 feet apart. For specific information
regarding sensor spacing, placement, and special
applications, refer to NFPA 72.
Duct Applications: IDP-Photo and IDP-Photo-T are listed
for use in ducts.
NOTE: These products are not listed for use inside duct
smoke detectors.
WIRING GUIDE
All wiring must be installed in compliance with the
National Electrical Code, applicable local codes, and any
special requirements of the Authority Having Jurisdiction.
Proper wire gauges should be used. The installation
wires should be color-coded to limit wiring mistakes and
ease system troubleshooting. Improper connections will
prevent a system from responding properly in the event
of a fire.
Remove power from the communication line before
installing sensors.
1. Wire the sensor base (supplied separately) per the
wiring diagram, see Figure 1.
2. Set the desired address on the sensor address switches,
see Figure 2.
3. Install the sensor into the sensor base. Push the sensor into
the base while turning it clockwise to secure it in place.
4. After all sensors have been installed, apply power to
the control unit and activate the communication line.
5. Test the sensor(s) as described in the TESTING
section of this manual.
GENERAL DESCRIPTION
Models IDP-Photo, IDP-Photo-T and IDP-Acclimate
are plug-in type smoke sensors that combine a
photoelectronic sensing chamber with addressableanalog communications. The sensors transmit an analog
representation of smoke density over a communication
line to a control panel. Rotary decade switches are
provided for setting the sensor’s address.
Two LEDs on the sensor are controlled by the panel
to indicate sensor status. An output is provided for
connection to an optional remote LED annunciator (P/N
RA400Z). Models IDP-Acclimate and IDP-Photo-T
combines a photoelectronic sensing chamber and 135°F
K200-04-00 1 I56-2720-00R
Dust covers provide limited protection against airborne
dust particles during shipping. Dust covers must be
removed before the sensors can sense smoke. Remove
sensors prior to heavy remodeling or construction.
TAMPER-RESISTANCE
Models IDP-Photo, IDP-Photo-T and IDP-Acclimate
include a tamper-resistant capability that prevents their
removal from the bracket without the use of a tool. Refer to
the base manual for details on making use of this capability.

TESTING
LED Status
Indicators
Magnet T est
Marker
Tes t
Magnet
Position
Tes t
Magnet
Position
Magnet T est
Marker
TENS ONES
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
3
2
1
3
2
1
+
–
–
+
OPTIONAL RETURN LOOP
REMOTE ANNUNCIATOR
+ –
Before testing, notify the proper authorities that the system
is undergoing maintenance, and will temporarily be out of
service. Disable the system to prevent unwanted alarms.
All sensors must be tested after installation and periodically
thereafter. Testing methods must satisfy the Authority
Having Jurisdiction (AHJ). Sensors offer maximum
performance when tested and maintained in compliance
with NFPA 72.
The sensor can be tested in the following ways:
A. Functional: Magnet Test (P/N M02-04-01 or M02-09-00)
This sensor can be functionally tested with a test
magnet. The test magnet electronically simulates
smoke in the sensing chamber, testing the sensor
electronics and connections to the control panel.
1. Hold the test magnet in the magnet test area as
shown in Figure 3.
2. The sensor should alarm the panel.
Two LEDs on the sensor are controlled by the panel
to indicate sensor status. Coded signals, transmitted
from the panel, can cause the LEDs to blink, latch
on, or latch off. Refer to the control panel technical
documentation for sensor LED status operation and
expected delay to alarm.
B. Smoke Entry: Aerosol Generator (Gemini 501 or
other UL lised devices)
The GEMINI model 501 aerosol generator can be
used for smoke entry testing. Other UL listed smoke
generating devices may be used as well. Set the
generator to represent 4%/ft to 5%/ft obscuration as
described in the GEMINI 501 manual. Using the bowl
shaped applicator, apply aerosol until the panel alarms.
For IDP-Acclimate, smoke entry testing should be
performed immediately following the magnet test.
Magnet test initiates an approximately 10 minute period
when the detector’s signal processing software routines
are not active. Failure to first perform the magnet test
will introduce a time delay before the detector alarms.
C. Direct Heat Method (Hair dryer of 1000-1500
watts). IDP-Photo-T and IDP-Acclimate only.
A hair dryer of 1000-1500 watts should be used to
test the thermistors. Direct the heat toward either
of the two thermistors, holding the heat source
approximately 12 inches from the detector in order to
avoid damaging the plastic housing. The detector will
reset only after it has had sufficient time to cool. Make
sure both thermistors are tested individually.
A sensor that fails any of these tests should be cleaned as
described under CLEANING, and retested. If the sensor fails
after cleaning, it must be replaced and returned for repair.
When testing is complete, restore the system to normal
operation and notify the proper authorities that the system
is back in operation.
K200-04-00 2 I56-2720-00R
CONTROL PANEL
UL LISTED COMPATIBLE
Figure 1. Wiring Diagram
Caution: Do Not Loop Wire Under Terminal 1 or 2.
Break Wire Run To Provide Supervision of Connections.
Figure 2. Rotary Address Switches
Figure 3.
C0100-00
C0146-00
C0145-00