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Opening of Quotations - WWTP Server Room Fire Suppression System Proj No 124-038R - Larson-Danielson
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Opening of Quotations - WWTP Server Room Fire Suppression System Proj No 124-038R - Larson-Danielson
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4/17/2025 4:25:16 PM
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2/11/2025 1:57:02 PM
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Board of Public Works
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Projects
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2/11/2025
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15 cd <br />30 mA <br />42 mA <br />62-82 <br />100 <br />30 cd <br />35 mA <br />58 mA <br />62-82 <br />100 <br />60 cd <br />66 mA <br />97 mA <br />62-82 <br />100 <br />75 cd <br />80 mA <br />116 mA <br />62-82 <br />100 <br />110 cd <br />103 mA <br />161 mA <br />62-82 <br />100 <br />Temp 3 24001-lz <br />78 dBA <br />71* <br />dBA <br />28 mA <br />Temp 3 Mechanical <br />76 dBA <br />70* <br />dBA <br />25 mA <br />Temp 3 Chime <br />70* dBA <br />66* <br />dBA <br />15 mA <br />Continuous 24001-lz <br />81 dBA <br />74* <br />dBA <br />28 mA <br />Continuous Mechanical <br />80 dBA <br />72* <br />dBA <br />25 mA <br />Continuous Chime <br />70* dBA <br />66* <br />dBA <br />15 mA <br />Whoop <br />82 dBA <br />69* <br />dBA <br />56 mA <br />NOTES: <br />• For nominal and peak current across ANSI/UL regulated voltage range for filtered DC power and <br />unfiltered (FWR [Full Wave Rectified]) power, see installation manual. <br />• Janus Fire Systems does not recommend using a coded or pulsing signaling circuit with any of <br />our strobe products. <br />• The sound output for the temporal 3 tone is rated lower since the time the horn is off is averaged <br />into the sound output rating. While the horn is producing a tone in the temporal 3 mode its <br />sound pressure is the same as the continuous mode. <br />• Operating the horn in this mode at this voltage will result in not meeting the minimum ANSI/ <br />UL 464 reverberant sound level required for public mode fire protection service. These settings <br />are acceptable only for private mode fire alarm use. Use the high dBA setting for public mode <br />application (not applicable when using the chime tone. The chime tone is always private mode). <br />Engineering Specifications <br />The audible and/or visible signal shall be HS-24RW horn/strobe or approved equal and shall be <br />listed by Underwriters Laboratories, Inc. perANSI/UL 1971 and/or ANSI/UL 464. <br />The notification appliance (combination audible/visible) shall produce a peak sound output of <br />100dBA or greater at 24VDC as measured in an anechoic chamber. The signaling appliance shall <br />also have the capability to silence the audible signal while leaving the visible signal energized with <br />the use of a single pair of power wires. Additionally, the user shall be able to select either continuous <br />or temporal tone output with the temporal signal having the ability to be synchronized. <br />Unit shall be capable of being installed so that any unauthorized attempt to change the candela <br />setting will result in a trouble signal at the fire alarm control panel. <br />The audible/visible and visible signaling appliance shall also maintain a minimum flash rate of <br />1 Hz or up to 2Hz regardless of power input voltage. The strobe appliance shall have an operating <br />current of 42mA or less at 24VDC for the 15Cd strobe circuit. <br />The appliance shall be polarized to allow for electrical supervision of the system wiring. The unit <br />shall be provided with a mounting bracket with terminals and barriers for input/output wiring and be <br />able to mount to a single gang or double gang box or double workbox without the use of an adapter <br />plate. The unit shall have an input voltage range of 16-33 volts with either direct current or full wave <br />rectified power for 24VDC models. <br />The appliance shall be capable of testing supervision without disconnecting wires, verify voltage <br />without removing unit and be capable of mounting to a surface back box. <br />DS1281 Revised: 28-Jan-2014 <br />Page 3 of 4 <br />
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