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P/N 3101209 • REV 03 • REB 28JAN13
Figure 2: Breakaway tab
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Breakaway tab
Test
NFPA 72 and CAN/ULC S537 require a calibrated sensitivity
test upon completion of the original installation and following
any modifications or additions to the system. The detector can
perform this test and generate a system sensitivity report.
To test the detector:
1. Before initial testing, remove the dust cover from the
detector and notify the proper authorities that the fire
alarm system is undergoing maintenance and will be
temporarily out of service.
2. Test the detector for proper operation using a heat gun
maintaining a six-inch minimum distance. Use caution as
excess heat can damage the detector and detector
housing.
Specifications
Communication line voltage
Maximum 20 V peak-to-peak
Normal operating current
45 µA
Alarm current
45 µA
UL/ULC fixed-temp alarm rating
135°F (57°C)
Actual alarm point
130 to 140°F (54 to 60°C)
Rate-of-rise
15°F (8°C)/min.
Compatible bases
Standard: B4U, B4U-LP
Relay: RB4U
Isolator: IB4U
Audible: SB4U
Maximum spacing
50 ft. (15 m) centers
Maximum distance from ceiling
wall-mounted
12 in. (305 mm)
Storage temperature
−4 to 140°F (−20 to 60°C)
Operating environment
Temperature
Humidity
32 to 120°F (0 to 49°C)
0 to 93% RH, noncondensing at
90°F (32°C)
Certification and compliance
Manufacturer
Edwards, A Division of UTC Fire & Security
Americas Corporation, Inc.
8985 Town Center Parkway, Bradenton, FL 34202,
USA
Year of
manufacture
The first two digits of the date code (located on the
product identification label) are the year of
manufacture.
North American
standards
Meets: UL 521, CAN/ULC-S530-M91,
Follow: NFPA 72, CAN/ULC-S524
Contact information
For contact information, see our Web site:
www.edwardssignaling.com.
