Notifier Hwl-lf | Notifier | Accessories | Gasdetectorsusa
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NOTIFIER   HWL-LF

SKU# (7065)



NOTIFIER HWL-LF

ACCESSORIES & PARTS / ACCESSORIES
NOTIFIER

  • DESCRIPTION
  • FEATURES
  • SPECIFICATIONS
  • LITERATURE
Notifier HRL-LF or HWL-LF Low frequency wall sounder (520 Hz). Plastic housing. Includes universal mounting plate. NFPA compliance. UL Listed.

HWL-LF   
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Housing Color

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2 Variants of base SKU
General

L-Series audible visible notification products have features to maximize profits with lower current draw and modern aesthetics.

The L-Series offers the most versatile and easy-to-use line of low frequency sounder and low frequency sounder strobes in the industry. With white and red plastic housings, listed for wall and ceiling mounting, L-Series Low Frequency can meet virtually any application requirement.

To further simplify installation and protect devices from construction damage, L-Series uses a universal mounting plate with an onboard shorting spring, so installers can test wiring continuity before the device is installed.

Installers can also easily adapt devices to a suit a wide range of application requirements using field-selectable candela settings, 24 volt operation, and a rotary switch for 520 Hz low frequency sounder tones.

Features
  • 520 Hz ± 10% square wave tone, NFPA compliance
  • Full candela range plus High/Low tone options to optimize current draw for a wide variety of applications
  • Compact, standard, and round ceiling options
  • Rotary switch for High and Low, Temp 3 and Temp4 settings
  • Plug-in design with minimal intrusion into the back box
  • Mounting plate shorting spring checks wiring continuity before device installation
  • Electrically compatible with legacy SpectrAlert and SpectrAlert Advance devices, and provides a direct replacement for HW/R-LF and P2R/WH-LF
  • Compatible with MDL3 sync module
  • Sounders listed for ceiling and wall mounting
  • Updated modern aesthetics
Agency Listings and Approvals

These listings and approvals apply to the modules specified in this document. In some cases, certain modules or applications may not be listed by certain approval agencies, or listing may be in process. Consult factory for latest listing status.

  • UL Listed: S4011
  • FM Approved: PR452768
  • CSFM: Horns only: 7135-1653:0516
    Horn/Strobes: 7125-1653:0517
Architects/Engineers Specifications

L-Series low frequency sounder and low frequency sounder strobes shall mount to a standard 4 × 4 × 1.5-inch back box, 4-inch octagon back box, or double-gang back box. Two-wire products shall also mount to a single-gang 2 × 4 × 1 7 /8-inch back box. A universal mounting plate shall be used for mounting products. The notification appliance circuit wiring shall terminate at the universal mounting plate. Also, L-Series products, when used with the Sync•Circuit. Module accessory, shall be powered from a non-coded notification appliance circuit output and shall operate on a nominal 12 or 24 volts. When used with the Sync•Circuit Module, 24-volt-rated notification appliance circuit outputs shall operate between 16.5 and 33 volts. Indoor L-Series products shall operate between 32 and 120 degrees Fahrenheit (0°C to 49°C) from a regulated DC or full-wave rectified unfiltered power supply. Low Frequency Sounder strobes shall have field-selectable candela settings including 15, 30, 75, 95, 110, 135, 185. The field selectable tones will sound within the frequency range of 520 Hz ±10% square wave tone and have a permanent marking on the housing that reads “low frequency sounder”.

LOW FREQUENCY SOUNDER

The low frequency sounder shall be a System Sensor L-Series Model listed to UL 464 and shall be approved for fire protective service. The low frequency sounder and the Sync•Circuit. MDL3 Module accessory, if used, shall be powered from a notification appliance circuit output and shall operate on a nominal 24 volts (includes fire alarm panels with built in sync). When used with the Sync•Circuit Module MDL3, 24-volt rated notification appliance circuit outputs shall operate between 16.5 to 33 volts. If the notification appliances are not UL 9th edition listed with the corresponding panel or power supply being used, then refer to the compatibility listing of the panel to determine maximum devices on a circuit. The low frequency sounder has an option to switch between temporal three or temporal four pattern, non-temporal (continuous) pattern and coded supply within the frequency range of 520Hz ± 10% square wave tone. The low frequency sounder shall operate on a coded or noncoded power supply with high and low volume settings.

Physical/Electrical Specifications
Standard Operating Temperature32°F to 120°F (0°C to 49°C)
Humidity Range10 to 93% non-condensing
Frequency Range520 Hz ± 10%
Nominal Voltage Low Frequency SounderRegulated 24 DC/ FWR 1
Nominal Voltage Range Low Frequency Sounder StrobeRegulated 24 VDC/FWR 1
Operating Voltage Range16 to 33 V (24 V nominal)
Operating Voltage Range MDL3 Sync Module16.5 to 33 V (24 V nominal)
Input Terminal Wire Gauge12 to 18 AWG
DIMENSIONS
Standard Wall Sounder Dimensions5.6" L × 4.7" W × 1.5" D (142 mm L × 119 mm W × 38 mm D)

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