System Sensor 2112_24R and 2112_24TR Photoelectronic User Manual

Page 4

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D200-83-00

I56-1239-02R

2001 System Sensor

Three-Year Limited Warranty

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 detector. 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 work-
manship under normal use and service during the three year period com-
mencing 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, Repair

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 dam-
ages for breach of this or any other Warranty, expressed or implied what-
soever, 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.

REMOVABLE
HOUSING

REMOVABLE
SCREEN

SENSING
CHAMBER
COVER

BASE

SENSING
CHAMBER

;;;;;;;;;;;;;;;;

yyyyyyyyyyyyyyyy

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A78-2565-02

Figure 5. Removal of cover and screen for cleaning:

Maintenance
NOTE: Before removing the detector, notify the proper

authorities that the smoke detector system is under-
going maintenance and will be temporarily out of
service. Disable the zone or system undergoing
maintenance to prevent unwanted alarms.

NOTE: (Model 2112/24TR only) Before removing the detec-

tor cover, note the position of the thermistors. Make
sure the thermistors are not bent over when the
housing is replaced.

Remove the detector housing by gently prying the four
housing tabs on the bottom of the base with a small-
bladed screwdriver and pull the housing from the base.
Use caution to avoid damaging the thermistors,
(2112/24TR only).

2. Vacuum the screen carefully without removing it.
3. Remove screen assembly, pulling straight out (see

Figure 5).

4. Remove the sensing chamber cover.
5. Clean the sensing chamber by vacuuming or blowing

out dust and particles.

6. Replace the sensing chamber cover, aligning the arrow

on the cover top with the arrow on the printed circuit
board.

7. Replace the screen by placing the screen assembly over

the sensing chamber cover and twisting until it snaps
into place.

8. Replace the housing by aligning the three triangular

slots on the base with their counterparts on the hous-
ing. Gently press the housing until it locks in place.
Check to make sure that the thermistors are in the
upright position.

9. Reinstall the detector.

10. Notify the proper authorities that the system is back in

operation.

Please refer to insert for the Limitations of Fire Alarm Systems

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