The FW971R and FW971W Horns are audible signal appliances listed according to UL 464 and ULC-S525 for indoor use. The temporal tone generated by the horn portion is designed as per ANSI and NFPA72 for standard emergency evacuation signaling requirement. The horn has the feature that can synchronize multiple horns in a complete fire alarm system.
SPECIFICATION
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Operating Voltage |
Regulated 16 to 33 VDC/FWR |
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RMS Operating Current (mA) |
DC |
35 |
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FWR |
47 |
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Sound Level (dBA） |
Voltage |
16V |
24V |
33V |
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Reverberant |
80 |
82 |
85 |
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Anechoic |
85 |
89 |
91 |
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Directional Characteristics |
Horizontal Axis |
Angle |
OSPL (dBA) |
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0° (ref) |
0 (ref) |
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± 44° |
-3 |
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± 54° |
-6 |
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± 90° |
-10.5 |
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Vertical Axis |
Angle |
OSPL (dBA) |
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0° (ref) |
0 (ref) |
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± 52° |
-3 |
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± 55° |
-6 |
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± 90° |
-12 |
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Operating Temperature |
0° C to 49° C (32° F to 120° F) |
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Operating Humidity |
0 to 93% RH |
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Horn Pattern |
Temporal 3 |
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Wire Size |
12 to 18 AWG |
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Location |
Indoor wall/ceiling |
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Compatible Model |
FW951 Sync Module, FW106 FACP |
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INTALLATION
1. Mount the FW900 base onto a 4x4 electrical box, see Figure 1.
Figure 1. Base Installation
2. Connect the wires. See Figure 2 and Figure 3.
(a) Class A Circuit without Audible Silence Feature
(b) Class A with Audible Silence Feature
(c) Class B without Audible Silence Feature
(d) Class B with Audible Silence Feature
Figure 2 Wiring Diagram with FW951 Sync Module
(a) Class A Circuit
(b) Class B circuit
Figure 3 Wiring Diagram with FW106 FACP
3. Combine the horn with base – Align the horn onto the base then twist it in clockwise.
4. Test for proper operation. Initiate the horn from the connected sync module or FACP and observe for proper operation.
MAINTENANCE
Scheduled inspection and operational test should be carried as per requirement set out by Local Authority Having Jurisdiction.
Return the device for reparation if it fails to alarm during testing. Do not disassemble the detector without permission.
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