POTTER LFH-24 Series Audible Signal Light User Manual

POTTER LFH-24 Series Audible Signal Light

INTRODUCTION

The Potter Electric models LFH-24 and LFHS-24 are high quality low frequency audible and/or visible signaling appliances. This appliance is intended to provide a low frequency audible or audible/visible, depending on the model, notification signal for the purpose of life safety and property protection. The LFHS-24 is a fixed candela unit; the candela intensities which can be
ordered are 15 Cd, 110Cd and 177Cd. The LFHS-24 strobe is listed in compliance with ANSI/UL 1971, Signaling Appliances for the Hearing Impaired.
This appliance is ideal for any occupancy that requires notification appliances per the applicable building or fire code or wherever dependable alarms are required. As of January 1, 2014
NFPA 72 requires that audible appliances installed in sleeping areas produce a low frequency alarm signal. For your information, the National Fire Protection Association’s (NFPA) Standard 72, 2013 Edition, Chapter 18, Section 18.4.5 Sleeping Area Requirements, states the following:
18.4.5.3 Effective January 1, 2014, audible appliances provided for the sleeping areas to awaken occupants shall produce a low frequency alarm signal that complies with the following:

1. The alarm signal shall be a square wave or provide equivalent awakening ability
2. The wave shall have a fundamental frequency of 520Hz ± 10 percent

LOCATION

This appliance is intended for use in fire alarm systems and is to be installed in accordance with this manual, the recommendation of the local authorities having jurisdiction, and other NFPA documents that provide standards on notification appliances for protective signaling systems. The LFH-24 and LFHS-24 are intended for indoor installations only; these appliances are not
listed for outdooror drip proof applications.
Wall mounted strobe appliances shall have their entire lens at heights above the finished floor of not less than 80 in. (2m) and not greater than 96 in. (2.4m)**. Spacing shall be in accordance with Table A. If a room configuration is not square, the room size that will entirely encompass the room or subdivide the room into multiple squares shall be used. Wall mounted horn only appliances shall have their tops above the finished floors at heights of not less than 90 in. (2.30m) and below the finished ceilings at heights of not less than 6 in. (152mm). Different mounting heights shall be permitted by the AHJ provided the sound pressure level requirements of NFPA 72 are met.

MOUNTING, ROUGH-IN BOX AND RUN WIRING

This unit is designed for mounting to most single gang boxes, 4″ square outlet boxes, 2-gang masonry boxes or non-metallic 2-gang switch boxes. Conduit entrance to boxes should be selected to insure sufficient wiring clearance.

1. Run a minimum 18 gauge insulated 2 or more conductor cable.
2. Mount a box for each remote signaling appliance. Screw bracket onto box. Insert signal into bracket and slide to the right firmly into the terminal block receptacle. Insert mounting screw as shown and tighten. Cover assembly with the plastic housing.
   NOTICE:WIRING SHOULD BE CONNECTED TO MOUNTING BRACKET PRIOR TO MOUNTING SIGNAL. INCOMING POSITIVE POWER LEAD MUST BE BROKEN AND EACH LEAD IS TO BE INSERTED INTO EACH OF THE TOP TWO TERMINALS. A BARRIER IS PROVIDED TO PREVENT BOTH LEADS FROM BEING PLACED UNDER THE SAME TERMINAL.

AUDIBLE SIGNALING APPLIANCE OUTPUT

• The three pulse temporal pattern (temporal 3) is to be used for evacuation use only.

• The standard fire alarm evacuation signal is a three-pulse temporal pattern. The pattern consists of the following in this order:

  • (1) An “on” phase lasting 0.5 second ± 10 percent
  • (2) An “off” phase lasting 0.5 second ± 10 percent for three successive “on” periods
  • (3) An “off” phase lasting 1.5 seconds ± 10 percent
    Total cycle lasts for 4 seconds ± 10 percent

• The sound output for the temporal 3 tone is rated lower since the time the horn is off is averaged into the sound output rating. Units have been tested to 0°C, 49°C and 93% humidity.

• The four pulse temporal pattern (temporal 4) is to be used for carbon monoxide alarm signal use only.

• The standard carbon monoxide alarm is a four pulse temporal pattern. The audible carbon monoxide alarm signal shall comply with the following:
  (1) Signals shall be a single tone pattern consisting of four cycles of 100 milliseconds ± 10 percent “on” and 100 milliseconds of ± 10 percent “off,” followed by 5 seconds ± 10 percent “off.”
  (2) After the initial 4 minutes of alarm, the 5-second “off” time shall be permitted to be changed to 60 seconds ± 10 percent.

• The four pulse temporal pattern (Temporal 4) can only be obtained on this product when used in conjunction with the Potter Electric GTSM synchronization module or GTSM synchronization protocol.

LFH-24 PRODUCT INFORMATION

LFH-24 Horn Decibel Levels and Current Ratings

 | Horn Decibel Levels:

Reverberant Room

| 24VDC Nominal Horn

Current Ratings (mA)

| Horn Current Ratings (UL Max) 2

Over Input Voltage Range of 16-33V (mA)

---|---|---|---

Horn Mode

| Minimum SPL at 10Ft. Per ANSI/UL 464 (NORMAL)| Minimum SPL at 10Ft. Per ANSI/UL 464 (LOUD)| 24VDC

Operating Current (NORMAL)

| 24VDC

Operating Current (LOUD)

| 24VFWR

Operating Current (NORMAL)

| 24VFWR

Operating Current (LOUD)

| Regulated 24VDC Max.

Operating Current (NORMAL)

| Regulated 24VDC Max.

Operating Current (LOUD)

| Regulated 24VFWR Max.

Operating Current (NORMAL)

| Regulated 24VFWR Max.

Operating Current (LOUD)

Temporal 3 520 Hz| 77.8 dBA| 79.8 dBA| 72.1 mA| 120.1 mA| 104.6 mA| 158.4 mA| 99.4 mA| 155.8 mA| 152.1 mA| 213.5 mA
Temporal 4 520 Hz1| 81.5 dBA| 83.4 dBA| 75.9 mA| 116.0 mA| 108.1 mA| 182.0 mA| 100.1 mA| 157.2 mA| 163.1 mA| 235.2 mA

1 Temporal 4 520 Hz measured per ANSI/UL 2075 2 Recommended

LFHS-24 PRODUCT INFORMATION

Table A

Room Spacing for Wall-Mounted Visible Appliances per NFPA 72, 2016 Edition

Maximum Room Size| Minimum Required Light Output ( Effective Intensity, Cd)
Meters| Feet| One Light per Room| Four Lights per Room (One Light per Wall)
6.10 x 6.10| 20 x 20| 15| NA
8.53 x 8.53| 28 x 28| 30| NA
9.14 x 9.14| 30 x 30| 34| NA
12.2 x 12.2| 40 x 40| 60| 15
13.7 x 13.7| 45 x 45| 75| 19
15.2 x 15.2| 50 x 50| 94| 30
16.5 x 16.5| 54 x 54| 110| 30
16.8 x 16.8| 55 x 55| 115| 30
18.3 x 18.3| 60 x 60| 135| 30
19.2 x 19.2| 63 x 63| 150| 37
20.7 x 20.7| 68 x 68| 177| 43
21.3 x 21.3| 70 x 70| 184| 60
24.4 x 24.4| 80 x 80| 240| 60
27.4 x 27.4| 90 x 90| 304| 95
30.5 x 30.5| 100 x 100| 375| 95
33.5 x 33.5| 110 x 110| 455| 135
36.6 x 36.6| 120 x 120| 540| 135
39.6 x 39.6| 130 x 130| 635| 185

LFHS-24 Horn Decibel Levels and Horn/Strobe Current Ratings

 |  | Horn Decibel Levels:

Reverberant Room

| ****

1 Temporal 4 520 Hz measured per ANSI/UL 2075

2 Recommended

---|---|---|---

Horn Mode

| Minimum SPL

at 10Ft. Per ANSI/UL 464 (NORMAL)

| Minimum SPL

at 10Ft. Per ANSI/UL 464 (LOUD)

Temporal 3 520 Hz| 76.3 dBA| 78.8 dBA
Temporal 4 520 Hz1| 80.6 dBA| 82.0 dBA
 |  | 24VDC Nominal Horn/Strobe

Current Ratings (mA)

| Horn/Strobe Current Ratings (UL Max) 2

Over Input Voltage Range of 16-33V (mA)

Candela

| ****

Horn Mode

| 24VDC

Operating Current (NORMAL)

| 24VDC

Operating Current (LOUD)

| 24VFWR

Operating Current (NORMAL)

| 24VFWR

Operating Current (LOUD)

| Regulated 24VDC Max. Operating Current (NORMAL)| Regulated 24VDC Max. Operating Current

(LOUD)

| Regulated 24VFWR Max.

Operating Current (NORMAL)

| Regulated 24VFWR Max.

Operating Current (LOUD)

15| Temporal 3 520 Hz| 112.0 mA| 144.0 mA| 163.0 mA| 198.0 mA| 124.0 mA| 182.0 mA| 201.0 mA| 252.0 mA
Temporal 4 520 Hz| 158.0 mA| 175.0 mA| 210.0 mA| 269.0 mA| 195.0 mA| 291.0 mA| 273.0 mA| 339.0 mA
110| Temporal 3 520 Hz| 193.0 mA| 223.0 mA| 259.0 mA| 295.0 mA| 280.0 mA| 326.0 mA| 348.0 mA| 427.0 mA
Temporal 4 520 Hz| 241.0 mA| 291.0 mA| 325.0 mA| 383.0 mA| 384.0 mA| 474.0 mA| 470.0 mA| 555.0 mA
177| Temporal 3 520 Hz| 268.0 mA| 293.0 mA| 325.0 mA| 329.0 mA| 365.0 mA| 393.0 mA| 465.0 mA| 478.0 mA
Temporal 4 520 Hz| 337.0 mA| 391.0 mA| 428.0 mA| 477.0 mA| 427.0 mA| 525.0 mA| 639.0 mA| 759.0 mA

WIRING

Wiring for synchronized strobes and horns. Using this method you may:

• Use the Potter Electric GTSM synchronization protocol to provide synchronization of temporal 3 and temporal 4 tones and mute the horn, if required.
  NOTICE:

• THIS APPLIANCE IS NOT RECOMMENDED FOR USE ON CODED OR PULSING SIGNALING CIRCUITS. HOWEVER, USE OF THE GTSM CONTROL MODULE IS PERMITTED TO SYNCHRONIZE THE HORN.

• THE FOUR PULSE TEMPORAL PATTERN (TEMPORAL 4) CAN ONLY BE OBTAINED ON THIS PRODUCT WHEN USED IN CONJUNCTION WITH THE POTTER ELECTRIC GTSM SYNCHRONIZATION MODULE OR GTSM SYNCHRONIZATION PROTOCOL.

• SEE GTSM CONTROL MODULE MANUAL (550-0634, MANUAL ISSUE DATE (02-01-15) FOR SYNCHRONIZATION MODULE WIRING DIAGRAMS. GTSM MANUAL CAN BE OBTAINED BY CALLING POTTER ELECTRIC SIGNAL COMPANY AT 1-800-325-3936.

Conventional Method:
You may connect the horn directly from a source of rated power without the use of a control module. However, the horns will NOT be synchronized.

Mounting Bracket

Allows the installer to pre-wire the system, test for system supervision, remove the signal head until occupancy, switch out Potter Electric signals without changing mounting brackets and has locking edge connector for snap-in- place installation.

Instant Voltage Verification:

It is often necessary to confirm the voltage drop along a line of devices. The access holes are provided in the back of the terminal block to allow the voltage to be measured directly without removing the device. Typically this would be done at the end of the line to confirm design criteria. Most measurements will be taken using the S+ and S- locations although access is provided to other locations.
NOTICE: CARE SHOULD BE TAKEN TO NOT SHORT THE TEST PROBES.

WARNING
THIS APPLIANCE WILL NOT OPERATE WITHOUT ELECTRICAL POWER. AS FIRES FREQUENTLY CAUSE POWER INTERRUPTIONS, POTTER ELECTRIC SUGGESTS YOU DISCUSS FURTHER SAFEGUARDS WITH YOUR LOCAL FIRE PROTECTION SPECIALIST.

CHECKOUT AND TROUBLESHOOTING

1. Supply power to the system control panel. The auxiliary signaling appliances in the system should not be activated.
2. If the signal is activated:
   • Check all smoke and fire detectors in the system to make sure they have not been activated.
   • Check all wiring connections to make sure the signal detection circuits are not reversed or shorted together. Check wire color codes and traces.
   • Verify that the jumpers and switches are properly set on both the control module and signal appliance. If the jumper on the GTSM is removed, the horns will not produce any sound unless there is an input to the H+ and H- terminals on the control module.
3. To test the signal appliances, trip the auxiliary panel or activate the alarm circuit at the main control panel or activate one of the fire detection units in the system. All auxiliary signals should be activated.
4. An operational test on this product should be conducted in accordance with National Standards or at a minimum annually and more often if dictated by local and state codes or authorities having jurisdiction.
   NOTICE: THESE TESTING PROCEDURES AND TROUBLESHOOTING INSTRUCTIONS ARE GENERALIZED. PLEASE REFER TO THE SYSTEM CONTROL PANEL OPERATING INSTRUCTIONS FOR PROPER OPERATION OF THE PANEL AND FIRE DETECTION SYSTEM.
   SIGNALING APPLIANCE LIMITATION:
   Your horn meets or exceeds the current audibility requirements of ANSI/UL 464. However, if the appliance is located outside a bedroom it may not wake up a sound sleeper, especially if the room door is closed or only partially open.

TO RETURN AN APPLIANCE

Should you experience problems with your appliance, proceed as follows:

1. Turn off electrical power to the auxiliary alarm circuit.
2. Remove the bezel, then mounting screw and slide signal off from bracket
3. Replace unit that was removed to restore wiring supervision and to eliminate system trouble alert.
4. Carefully pack the defective unit (the manufacturer cannot be responsible for consequential damage due to shipping or mis-handling). Include a return address and complete details as to the nature of the difficulties being experienced and date of installation.
5. Return to: Potter Electric Signaling Company, LLC 1609 Park 370 Hazelwood, MO 63042. Prior to returning, call the Potter Electric Customer Service Department at 1-800-325-3936 to obtain a RMA Number.

PRODUCT INFORMATION

This appliance is intended to provide an audible or audible/visible, depending on the model, notification signal for the purpose of life safety and property protection. This appliance is ideal for any occupancy that requires notification appliances per the applicable building or fire code or wherever dependable alarms are required. This appliance is listed in compliance with CAN/ULC S525 and or CAN/ULS S526. This appliance is intended for use in fire alarm systems and is to be installed in accordance with this manual, the National Building Code of Canada, CAN/ULC S524 and local codes that provide standards on notification appliances for protective signaling systems. Potter electric recommends spacing notification appliances in compliance with CAN/ULC S524.
This unit is designed for mounting to most single gang boxes, 4″ square outlet boxes, 2-gang masonry boxes or non-metallic 2-gang switch boxes. Conduit entrance to boxes should be selected to insure sufficient wiring clearance.

1. Wiring is to be in accordance with CSA C22.1 Canadian Electrical Code, Part 1, Safety Standard for Electrical Installations, Sec. 32
2. Run a minimum 18 gauge insulated 2 or more conductor cable.
3. Mount a box for each remote signaling appliance. Screw bracket onto box. Insert signal into bracket and slide to the right firmly into the terminal block receptacle. Insert mounting screw as shown and tighten. Cover assembly with the plastic housing.

CAN/ULC HORN DECIBEL AND CURRENT RATINGS PRODUCT INFORMATION: HORN & HORN/STROBE

• OBTAIN THE CAN/ULC HORN DECIBEL AND CURRENT RATINGS FOR THE LFH-24 AUDIBLE APPLIANCE, SEE INFORMATION FOUND ON PAGE 1.
• OBTAIN THE CAN/ULC HORN/STROBE DECIBEL AND CURRENT RATINGS FOR THE LFHS-24 AUDIBLE APPLIANCE, SEE INFORMATION FOUND ON PAGE 2.

NOTICE:

• THE NATIONAL BUILDING CODE AND CAN/ULC S525 REQUIRES THAT ALL HORNS USED FOR BUILDING EVACUATION PRODUCE TEMPORAL CODED SIGNALS.
• UNITS HAVE BEEN TESTED TO 0°C, 49°C AND 93% HUMIDITY.
• THE FOUR PULSE TEMPORAL PATTERN (TEMPORAL 4) CAN ONLY BE OBTAINED ON THIS PRODUCT WHEN USED IN CONJUNCTION WITH THE POTTER ELECTRIC GTSM SYNCHRONIZATION MODULE OR GTSM SYNCHRONIZATION PROTOCOL.

HORN DeCIBeL RAtINgS IN ULC ANeCHOIC ROOM

(dBA @ 3 meters) HORN

Horn Mode

|

Min. SPL Rating

Temporal 3 520 Hz (NORMAL)| 84.7 dBA
Temporal 3 520 Hz (LOUD)| 88.3 dBA
Temporal 4 520 Hz (NORMAL)| 84.7 dBA
Temporal 4 520 Hz (LOUD)| 88.3 dBA
HORN DeCIBeL RAtINgS IN ULC ANeCHOIC ROOM

(dBA @ 3 meters) HORN/StROBe

Horn Mode

|

Min. SPL Rating

Temporal 3 520 Hz (NORMAL)| 88.2 dBA
Temporal 3 520 Hz (LOUD)| 90.1 dBA
Temporal 4 520 Hz (NORMAL)| 87.1 dBA
Temporal 4 520 Hz (LOUD)| 88.0 dBA
Directional Sound Characteristic:

Horn and Horn/Strobe

 | Horizontal Angle
-3 dBA| 155 and 55
-6 dBA|  
 | Vertical Angle
-3 dBA| 150 and 55
-6 dBA| 155

LIMITED WARRANTY

For a period of 60 months from the date of manufacture (or as long as required by applicable law), Potter Electrical Signal Company, LLC warrants to you the original purchaser that your appliance will be free from defects in workmanship and materials under normal use and service.
This warranty does not apply and is void if damage or failure is caused by: accident, abuse, misuse, abnormal use, faulty installation, liquid contact, fire, earthquake or other external cause; operating the appliance outside Potter Electrical Signal Company, LLC’s published guidelines; or service, alteration, maintenance or repairs performed by anyone other than Potter Electrical Signal Company, LLC. This warranty does not transfer to subsequent owners or purchasers of this appliance. This warranty also does not apply to: consumable parts, such as batteries; cosmetic damage, including but not limited to scratches or dents; defects caused by normal wear and tear or otherwise due to the normal aging of the appliance, or if any serial number has been removed or defaced from the appliance.

TO THE EXTENT PERMITTED BY LAW, THIS WARRANTY AND THE REMEDIES SET FORTH HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, REMEDIES AND CONDITIONS, WHETHER ORAL, WRITTEN, STATUTORY, EXPRESS OR IMPLIED. POTTER ELECTRICAL SINGAL COMPANY, LLC DISCLAIMS ALL STATUTORY AND IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND WARRANTIES AGAINST HIDDEN OR LATENT DEFECTS TO THE EXTENT PERMITTED BY LAW. TO THE EXTENT SUCH WARRANTIES CANNOT BE DISCLAIMED, AND TO THE EXTENT PERMITTED BY APPLICABLE LAW, SUCH IMPLIED WARRANTIES SHALL APPLY ONLY FOR THE WARRANTY PERIOD SPECIFIED ABOVE. PLEASE NOTE THAT SOME STATES (COUNTRIES AND PROVINCES/TERRITORIES) DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY (OR CONDITION) LASTS. SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU. EXCEPT AS PROVIDED IN THIS WARRANTY AND TO THE EXTENT PERMITTED BY LAW, POTTER ELECTRICAL SINGAL COMPANY, LLC WILL NOT BE LIABLE FOR ANY DIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF WARRANTY OR CONDITION, OR ARISING IN CONNECTION WITH THE SALE, USE OR REPAIR OF THE APPLIANCE, OR UNDER ANY OTHER LEGAL THEORY, INCLUDING BUT NOT LIMITED TO LOSS OF USE, LOSS OF REVENUE, LOSS OF ACTUAL OR ANTICIPATED PROFITS, LOSS OF THE USE OF MONEY, LOSS OF BUSINESS, LOSS OF OPPORTUNITY, LOSS OF GOODWILL, AND LOSS OF REPUTATION. THE MAXIMUM LIABILITY OF POTTER ELECTRICAL SINGAL COMPANY, LLC SHALL NOT IN ANY CASE EXCEED THE PURCHASE PRICE PAID BY YOU FOR

THE APPLIANCE. PLEASE NOTE THAT SOME STATES
(COUNTRIES AND PROVINCES/TERRITORIES) DO NOT ALLOW THE EXCLUSION OR LIMITATION OF DIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.

If a defect in workmanship or materials causes your appliance to become inoperable within the warranty period, you must return the appliance to Potter Electrical Signal Company, LLC postage prepaid to: Potter Electrical Signal Company, LLC, 1609 Park 370, Hazelwood MO 63042. You must prove to the satisfaction of Potter Electrical Signal Company, LLC the date of purchase of your appliance. You must also enclose a return address. Warranty service may only be performed by Potter Electrical Signal Company, LLC personnel at Potter Electrical Signal Company, LLC’s facilities in Hazelwood, Missouri. You must also pack the appliance to minimize the risk of it being damaged in transit. If we receive an appliance in a damaged condition as the result of shipping, we will notify you and you must seek a claim with the shipper.

If you submit a valid claim to Potter Electrical Signal Company, LLC during the warranty period, Potter Electrical Signal Company, LLC will, at its option, repair your appliance or furnish you with a new or rebuilt appliance without charge to you except for postage required to return the appliance to us. Potter Electrical Signal Company, LLC will not reimburse you for repairs or replacement parts provided by other parties. Your repaired or replacement appliance will be returned to you free of charge and it will be covered under the warranty for the balance of the warranty period, if any. When a product or part is replaced, any replacement item becomes your property and the replaced item becomes property of Potter Electrical Signal Company, LLC. For additional warranty and product information go to www.pottersignal.com.

THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE (OR BY COUNTRY OR PROVINCE/TERRITORY). BY THIS WARRANTY, POTTER ELECTRIC SIGNAL COMPANY, LLC DOES NOT LIMIT OR EXCLUDE YOUR RIGHTS EXCEPT AS ALLOWED BY LAW. TO FULLY UNDERSTAND YOUR RIGHTS, YOU SHOULD CONSULT THE LAWS OF YOUR COUNTRY, PROVINCE/TERRITORY OR STATE.

Important Notice:

These materials have been prepared by Potter Electrical Signal Company, LLC (“Potter”) for informational purposes only, are necessarily summary, and are not purported to serve as legal advice and should not be used as such. Potter makes no representations and warranties, express or implied, that these materials are complete and accurate, up-to-date, or in compliance with all relevant local, state and federal laws, regulations and rules. The materials do not address all legal considerations as there is inevitable uncertainty regarding interpretation of laws, regulations and rules and the application of such laws, regulations and rules to particular fact patterns. Each person’s activities can differently affect the obligations that exist under applicable laws, regulations or rules. Therefore, these materials should be used only for informational purposes and should not be used as a substitute for seeking professional legal advice. Potter will not be responsible for any action or failure to act in reliance upon the information contained in this material.

Potter Electric Signal Company, LLC 1609 Park 370, Hazelwood, MO 63042 Phone: 800-325-3936
www.pottersignal.com

firealarmresources.com

References

• Fire Alarm Resources | Download fire alarm documents
• Potter Electric: Fire Alarms & Fire Sprinkler Systems

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