System Sensor 2112_24AITR Photoelectronic User Manual

Page 4

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D200-85-00

4

I56-1241-03R

©

2002 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, Returns

Smoke detectors shall be replaced after being in service for 10 years. However, any smoke detector, fire alarm equipment, or any component of that sys-
tem which fails prior to that shall be repaired or replaced as soon as possible. Batteries shall be replaced upon indication of a pre-low battery condition.

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.

A78-2565-04

Figure 5. Removal of cover and screen for cleaning:

Testing
NOTE:

Before testing, notify the proper authorities that the smoke
detector system is undergoing maintenance and will be tem-
porarily out of service. Disable the zone or system undergoing
maintenance to prevent unwanted alarms.

Detectors must be tested after installation and following periodic mainte-
nance. Test the 2112/24AITR as follows:
A. Test Switch

1. A recessed test switch is located on the detector housing (See

Figure 4).

2. Press and hold the recessed test switch with a 0.18 inch maximum

diameter tool such as an allen wrench or small screwdriver.

3. The detector’s LED should light within 5 seconds.

B. Test Module (System Sensor Model No. MOD400R).

The MOD400R test module can be used with a DMM or analog volt-
meter to check the detector sensitivity as described in the test mod-
ule’s manual.

C. Smoke Entry Test

Hold a smoldering punk stick or cotton wick at the side of the detec-
tor and gently blow smoke through the detector until the unit alarms.

D. Direct Heat Method (Hair dryer of 1000-1500 watts)

Direct the heat toward either of the side thermistors. Hold the heat
source about 12 inches from the detector in order to avoid damage to
the plastic. The detector will reset only after it has had sufficient time
to cool and the power source has been momentarily interrupted.

Both smoke and heat detection testing are recommended for verifying sys-
tem protection capability.

A detector that fails to activate with any of the above tests should first be
cleaned as outlined in MAINTENANCE. If the detector still fails to acti-
vate, return it for repair.

Notify the proper authorities the system is back in operation.

REMOVABLE
HOUSING

REMOVABLE
SCREEN

SENSING
CHAMBER
COVER

BASE

SENSING
CHAMBER

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Please refer to insert for the Limitations of Fire Alarm Systems

Maintenance

NOTE:

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.

NOTE:

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

1. 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.

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

LED

RECESSED TEST
SWITCH

TEST MODULE
SOCKET

PUSH RECESSED
SWITCH WITH A
0.18

MAX. DIAMETER TOOL

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Figure 4. Top and side views showing position of test switch:

A78-2564-00

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