fIgURE 3. TEST MAgNET POSITION:
LED STATUS
INDICATORS
MAGNET TEST
MARKER
TEST MAGNET
POSITION
TEST MAGNET
POSITION
MAGNET TEST
MARKER
C0145-00
B. Smoke Entry: Aerosol Generator (Gemini 501)
The GEMINI model 501 aerosol generator can be used for smoke entry
testing. Set the generator to represent 4%/ft to 5%/ft obscuration as de-
scribed in the GEMINI 501 manual. Using the bowl shaped applicator,
apply aerosol until the panel alarms. Additionally, canned aerosol simu-
lated smoke (canned smoke agent) may be used for smoke entry testing
of the smoke detector. Tested and approved aerosol smoke products are
the Smoke Detector Tester model 25S available from Home Safeguard In-
dustries and Chekkit Smoke Detector Tester models CHEK02 and CHEK06
available from SDi. 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.
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.
For 2251TMB, smoke entry testing should be performed immediately fol-
lowing 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) 2251TB and
2251TMB only
A hair dryer of 1000-1500 watts should be used to test the thermistors. Di-
rect 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.
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 un-
wanted 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.
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. Make sure that the thermistors do not
become bent under the cover on 2251TB and 2251TMB models.
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 combina-
tion has been evaluated and found suitable for that purpose.
fIgURE 4. SENSOR ASSEMBLy:
SENSOR
COVER
SENSING
CHAMBER
COVER AND
SCREEN
COVER
REMOVAL
TABS
SENSING
CHAMBER
OPTIONAL
THERMISTORS
(2251TB AND 2251TMB)
C0215-00
D200-29-00
4
I56-1909-003R
©2008 System Sensor
System Sensor warrants its enclosed smoke detector to be free from defects in materials
and workmanship under normal use and service for a period of three years from date
of manufacture. System Sensor makes no other express warranty for this smoke detec-
tor. No agent, representative, dealer, or employee of the Company has the authority to
increase or alter the obligations or limitations of this Warranty. The Company’s obligation
of this Warranty shall be limited to the repair or replacement of any part of the smoke
detector which is found to be defective in materials or workmanship under normal use
and service during the three year period commencing with the date of manufacture.
After phoning System Sensor’s toll free number 800-SENSOR2 (736-7672) for a Return
Authorization number, send defective units postage prepaid to: System Sensor, Returns
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 installa-
tion. 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.
ThREE-yEAR LIMITED WARRANTy
Department, RA #__________, 3825 Ohio Avenue, St. Charles, IL 60174. Please include a
note describing the malfunction and suspected cause of failure. The Company shall not
be obligated to repair or replace units which are found to be defective because of damage,
unreasonable use, modifications, or alterations occurring after the date of manufacture.
In no case shall the Company be liable for any consequential or incidental damages for
breach of this or any other Warranty, expressed or implied whatsoever, even if the loss
or damage is caused by the Company’s negligence or fault. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation
or exclusion may not apply to you. This Warranty gives you specific legal rights, and you
may also have other rights which vary from state to state.
Please refer to insert for the Limitations of Fire Alarm Systems
