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INSTALLATION AND MAINTENANCE INSTRUCTIONS
SK-PHOTO-R-W
Intelligent Photoelectric Smoke Sensor with Remote Test Capability in Duct Applications
SPECIFICATIONS
12 Clintonville Road, Northford, CT 06472-1610
Phone: 203-484-7161 Fax: 203-484-7118 www.silentknight.com
Operating Voltage Range:
Operating Current @ 24 VDC:
Maximum Alarm Current:
Maximum Current:
Operating Humidity Range:
Operating Temperature Range:
Air Velocity:
Height:
15 to 32 VDC
200 uA (one communication every 5 seconds with green LED blink on communication)
2 mA @ 24 VDC (one communication every 5 seconds with red LED solid on)
4.5 mA @ 24 VDC (one communication every 5 seconds with amber LED solid on)
10% to 93% Relative Humidity, Non-condensing
32°F to 122°F (0°C to 50°C), -4°F to 158°F (-20°C to 70°C) in duct applications
0 to 4000 ft./min. (0 to 1219.2 m/min.)
2.0˝ (51 mm) installed in B300-6 Base
Diameter:
Weight:
6.1˝ (155 mm) installed in B300-6 Base; 4.1˝ (104 mm) installed in B501 Base
5.2 oz. (147 g)
Isolator Load Rating: 0.0063*
*Please refer to your isolator base/module manual for isolator calculation instructions.
UL268A listed for Duct Applications
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.
GENERAL DESCRIPTION
Model SK-PHOTO-R-W is a plug-in type smoke sensor that combines a photoelectronic sensing chamber with addressable-analog communications. When used in duct applications with a DNR(W), testing can be done remotely using approved System Sen sor test accessories, eliminating the need for a test coil. The sensors transmit an analog representation of smoke density over a communication line to a control panel. Rotary dial switches are provided for setting the sensor’s address.
FIGURE 1. ROTARY ADDRESS SWITCHES:
4
5
3
2
6
7 8
1 0
TENS
9
10
11
12
15
14
13
4
5
3
2
6
7 8
1 0
ONES
9
C0162-00
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 RA100Z).
Note: Only System Sensor approved accessories may be used with the
SK-PHOTO-R-W.
Silent Knight panels offer different feature sets across different models. As a result, certain features of the photoelectric sensors may be available on some control panels, but not on others. These devices support SK protocol mode.
The possible features available if supported by the control panel include:
1. The sensor’s LEDs can operate in three ways—on, off, and blinking–and they can be set to red, green, or amber. This is controlled by the panel.
2. The remote output may be synchronized to the LED operation or controlled independent of the LEDs.
3. Devices are point addressable up to 159 addresses.
Please refer to the operation manual for the UL listed control panel for specific operation. The SK-PHOTO-R-W requires compatible addressable communications to function properly. Connect these sensors to listed-compatible control panels only.
SPACING
Silent Knight recommends spacing sensors in compliance with NFPA 72. In low air flow applications with smooth ceilings, space sensors 30 feet apart
(9.1 m). For specific information regarding sensor spacing, placement, and special applications, refer to NFPA 72 or the System Smoke Detector Application Guide, available from Silent Knight.
Duct Applications: SK-PHOTO-R-W is listed for use in ducts. See Duct Smoke
Detectors Applications Guide HVAG53 for details on pendant mount applications. NOTE: SK-PHOTO-R-W is also listed for use inside DNR(W) 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, Figure 2.
2. Set the desired address on the sensor address switches, see Figure 1.
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 panel and activate the communication line.
5. Test the sensor(s) as described in the TESTING section of this manual.
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.
FIGURE 2. WIRING DIAGRAM:
(+)
(–)
Remote
Annunciator
+ -
RA
3
+
2
+
1
–
CAUTION
CAUTION: Do not loop wire under terminal 1 or 2. Break wire run to supervise connections.
RA
3
+
2
+
–
1
RA
3
+
2
+
(–)
(+)
CLASS A OPTIONAL WIRING
C0129-10
TAMPER-RESISTANCE
Models SK-PHOTO-R-W includes a tamper-resistant capability that prevents removal from the base without the use of a tool. Refer to the base manual for details on making use of this capability.
TESTING
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
Preliminary 1 I56-6528-001
09/23/2019
offer maximum performance when tested and maintained in compliance with
CAN/ULC S536.
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
Sensitivity readings are available through the FACP. Refer to the manufacturer’s published instructions for proper use.
Additionally, canned aerosol simulated smoke (canned smoke agent) may be used for smoke entry testing of the smoke detector. Tested and approved aerosol smoke products are:
Manufacturer
HSI Fire & Safety
SDi
Model
25S, 30S (PURCHECK)
SMOKE CENTURIAN, SOLOA4,
SMOKESABRE, TRUTEST
TESTIFIRE 2000 No Climb
When used properly, the canned smoke agent will cause the smoke detector to go into alarm. Refer to the manufacturer’s published instructions for proper use of the canned smoke agent.
5. Use a vacuum cleaner or compressed air to remove dust and debris from the sensing chamber.
6. Reinstall the chamber cover/screen assembly by sliding the edge over the sensing chamber. Turn until it is firmly in place.
7. Replace the cover using the LEDs to align the cover and then gently pushing it until it locks into place.
8. Reinstall the detector.
9. Test the detector as described in TESTING.
10. Reconnect disabled circuits.
11. Notify the proper authorities that the system is back on line.
SPECIAL NOTE REGARDING SMOKE DETECTOR GUARDS
Smoke detectors are not to be used with detector guards unless the combination has been evaluated and found suitable for that purpose.
FIGURE 3: FEATURES OF THE PHOTO DETECTOR
Magnet
Test
Marker
Base
Alignment
Notch
LED
Remote le
Base Alignment Notch
Magnet Test Marker
FIGURE 4: CLEANING THE PHOTO DETECTOR
Sensor Cover
LED
C2021-01
CAUTION
Canned aerosol simulated smoke (canned smoke agent) formulas will vary by manufacturer. Misuse or overuse of these products may have long term adverse effects on the smoke detector. Consult the canned smoke agent manufacturer’s published instructions for any further warnings or caution statements.
C. Remote Test.
SK-PHOTO-R-W can be remotely tested using the RTS151 or RTS151KEY test accessories. Refer to the DNR(W) manual for wiring diagrams. Maximum test response time may be up to two communications from the panel.
A sensor that fails any of these tests may need to be cleaned as described under CLEANING, and retested. When testing is complete, restore the system to normal operation and notify the proper authorities that the system is back in operation.
CLEANING
Before removing the detector, notify the proper authorities that the smoke detector system is undergoing maintenance and will be temporarily out of service. Disable the zone or system undergoing maintenance to prevent unwanted alarms.
1. Remove the sensor to be cleaned from the system.
2. Remove the sensor cover by pressing firmly on each of the four removal tabs that hold the cover in place.
3. Vacuum the screen carefully without removing it. If further cleaning is required continue with Step 4, otherwise skip to Step 7.
4. Remove the chamber cover/screen assembly by pulling it straight out.
Cover
Removal
Tabs
Sensing Chamber
Cover and Screen
Sensing Chamber
C2022-00
SPECIAL APPLICATION
When configured at the fire alarm control panel, this detector is capable of operating in a special application mode such that it has a higher sensitivity than is normally allowed by UL 268 for areas where early warning is important. In this mode, the detector does not comply with the Cooking Nuisance Smoke
Test. Detectors (Sampling ports) set to the special application mode are not suitable for use in areas where cooking appliances may be used. If cooking appliances are used within the protected space, a normal application detector or normal application mode must be used for that area.
Special application mode is not for general use and the detector may be more prone to false alarms if used in unsuitable environments. While no list is all-inclusive, some examples of unsuitable environments for special application mode are areas with airborne particulate or aerosols including sawing, drilling, and grinding operations, textile or agricultural processing, or areas with engines that are not vented to the outside. A complete list of aerosol and particulate sources is available in the Annex of NFPA 72.
Suitable environments for special application mode could include early warning for hospitals, museums, assisted living and other areas that do not have airborne particulate or aerosols.
Refer to the fire alarm control panel documentation for information on how to configure the detector for special application mode.
Please refer to insert for the Limitations of Fire Alarm Systems
FCC STATEMENT
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
– Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
– Consult the dealer or an experienced radio/TV technician for help.
This Class B digital apparatus complies with Canadian ICES-003.
DEVICE AND SYSTEM SECURITY
Before installing this product ensure that the tamper seal on the packaging is present and unbroken and the product has not been tampered with since leaving the factory. Do not install this product if there are any indications of tampering.
If there are any signs of tampering the product should be returned to the point of purchase.
It is the responsibility of the system owner to ensure that all system components, i.e. devices, panels, wiring etc., are adequately protected to avoid tampering of the system that could result in information disclosure, spoofing, and integrity violation.
Silent Knight ® is a registered trademark of Honeywell International, Inc.
Preliminary 2 I56-6528-001
©2019 Silent Knight. 09/23/2019
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