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1. Remove the detector cover by turning counterclockwise. (See
Figure 5.)
2. Vacuum the cover or use canned air to remove any dust or
debris.
3. Remove the top half of the screen/sensing chamber by lifting
straight up (Figure 5).
4. Vacuum or use canned air to remove any dust or particles that
are present on both chamber halves.
5. Replace the top half of the screen/sensing chamber by align-
ing the arrow on the screen/sensing chamber with the arrow
on the housing. Press down firmly until the screen/sensing
chamber is fully seated.
6. Replace the detector cover by placing it over the screen/sensing
chamber and turning it clockwise until it snaps into place.
7. Reinstall the detector and test. (See the Testing section.)
8. Notify the proper authorities when the system is back in service.
Figure 5: Removing/Replacing Screen/Sensing Chamber
Please refer to insert for the Limitations of Fire Alarm Systems
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 war-
ranty 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 workmanship under normal use and service during
the three year period commencing with the date of manufacture. After phon-
ing System Sensor's toll free number 800-SENSOR2 (736-7672) for a Return
Authorization number, send defective units postage prepaid to: System Sensor,
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.
D100-96-00
Electrical Specifications 2-wire 4-wire
System Voltage – Nominal: 12/24
Max. Ripple Voltage:
Max. Standby Current:
Peak Standby Current:
Max. Alarm Current:
(For 2W-B and 2WT-B,
panel must limit current) 130
Alarm Contact Ratings:
Alarm Reset Time:
Max. Start-up Capacitance: 0.1
Latching Alarm:
Maximum Initial
Start-up Time:
Alarm Verification*
Start-up Time:
*Assumes the panel's alarm verification reset time is 10 seconds
or less. Should the alarm verification reset exceed 10 seconds, use
REMOVABLE
the maximum initial start-up time.
DETECTOR
COVER
Physical Specifications
Heat Sensor
(Model 2WT-B and 4WT-B): 135°F (57.2°C)
SCREEN/SENSING
Freeze Trouble
CHAMBER
(Model 2WT-B and 4WT-B): 41°F (5°C)
(TOP HALF)
Operating Temperature Range:
2W-B and 4W-B:
2WT-B and 4WT-B:
Operating Humidity Range:
Storage Temperature Range:
Diameter (including base):
Height (including base):
DETECTOR
Weight:
HOUSING
S0136-00
Three-Year Limited Warranty
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 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 limita-
tion 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.
FCC Statement
4
12/24 Volts Non-polarized
Min.:
8.5
8.5
Volts
Max.:
35
35
Volts
30
30
% peak to peak
of applied voltage
50
50
µA average
100
—
µA
130
20
mA 12 Volt Systems
23
mA 24 Volt Systems
—
0.5
Amp @ 30 V AC/DC
0.3
0.3
sec
—
µF
Reset by momentary power interruption
45
15
sec
15
15
sec
32 to 120°F (0 to 49°C)
32 to 100°F (0 to 37.8°C)
0 to 95% RH non-condensing
–4 to 158°F (–20 to 70°C)
5.3 inches
2.0 inches
6.3 oz.
I56-1800-07R
©2004 System Sensor
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