Wheelock STH-15S-ULC User manual

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Wheelock
273 Branchport Avenue
Long Branch, N.J. 07740
[phone]
www.coopernotification.com Thank you for using our products.
INSTALLATION INSTRUCTIONS
STH-15 HORN SPEAKER WITH MULTI-TAP TRANSFORMER
AND CAPACITOR FOR DC LINE SUPERVISION
Use this product according to this instruction manual. Please keep this instruction manual for future reference.
MODEL:
STH-15S-ULC Grey ULC Listed under CAN/ULC-S541-2016 for Speaker Appliances
STH-15SR-ULC Red ULC Listed under CAN/ULC-S541-2016 for Speaker Appliances
GENERAL:
Wheelock STH-15S-ULC and STH-15SR-ULC Horn Speakers are Listed for indoor fire protection service under Standard ULC-
S541-2016 (Speakers for Fire Alarm and Signaling Systems). The STH-15 is designed for multiple power requirements with high
dBA output at each power tap. STH-15 models offer a choice of field selectable taps, 0.48 to 15 Watts for use with either
25VRMS or 70VRMS audio systems. The STH-15 design incorporates a compression driver, mounted on a double re-entrant
horn for maximum output at minimum power across a frequency range of 400 to 4,000Hz. The STH-15 input is compatible with
standard DC supervision of circuit wiring by a Fire Alarm Control Panel (FACP). A capacitor is internally wired in series with the
multi-tap impedance matching transformer for this purpose.
CAUTION: Do not change factory applied finishes. “DO NOT PAINT”.
ATTENTION: Ne pas modifiez les finitions appliquées en usine. “NE PAS PEINTURER”
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. FAILURE TO COMPLY WITH ANY OF THE
FOLLOWING INSTRUCTIONS, COULD RESULT IN IMPROPER APPLICATION, INSTALLATION AND/OR OPERATION OF
THESE PRODUCTS IN AN EMERGENCY SITUATION, WHICH COULD RESULT IN PROPERTY DAMAGE, SERIOUS
INJURY OR DEATH TO YOU AND/OR OTHERS.
SPECIFICATIONS:
Table 1: Wattage Selector Switch Settings and dBA
Setting
70V
dB
25V
dB
1
0.9W
93
Not Used
Not Used
2
1.8W
96
Not Used
Not Used
3
3.8W
96
0.48W
90
4
7.5W
99
0.94W
90
5
15.0W
102
1.83W
93
6
Not Used
Not Used
7.0W
99
7
Not Used
Not Used
13.9W
102
NOTES:
1. Power Handling Capacity (RMS): 15W
2. Sound Dispersion: 70 Degrees
3. Constant Voltage Line: 25V or 70V
4. Frequency Response: 400 - 4,000Hz (@ Full Rated Output)
5. Sound Level (Peak): 120dB at 15W, 1 Meter
6. Dimensions: 7-7/8W X 8-3/4H X 9-5/16L
IMPORTANT: Do not place switch in settings marked "not used". Failure to comply with these restrictions may cause damage
to components and will void the warranty.
Copyright 2021 Cooper Wheelock, Inc. dba Cooper Notification.
NOTE:STH-15 Horn Speaker is not intended for use in hazardous locations.
INSTALLATION INFORMATION:
There is a slotted shaft, underneath the cable entrance interface adapter, which operates a 7-position selector switch. Remove
the interface adapter and set the switch for the desired wattage at the specified speaker line voltage (25V or 70V). Adjust the
switch by turning the slotted shaft until the end of the slot which is opposite the flat on the shaft points to the desired number.
The wattage provided at each selector number is shown on the decal affixed to the rear of the housing.
MOUNTING INFORMATION:
The STH-15 Horn Speaker may be wall mounted by simply using the holes in the swivel base to locate and drill mounting holes.
Mount the base to the surface with appropriate hardware. Slots are also provided in the base for banding straps, to allow
mounting to beams, poles, and girders. The mounting base is also fully adjustable in both the vertical and horizontal planes (See
Figure 1).
Figure 1:
WING NUTFORROTATIONAND
SWIVELADJUSTMENTS
BASEROTATES360 DEGREES
BANDINGSLOT(2)
MOUNTINGHOLE(3)
MOUNTINGARM
SWIVELS
OVERHEADVIEWOF
MOUNTINGBASE
(SHOWNWITHOUTHORN)
IMPORTANT: Loosening the wing nut will allow for both pitch and rotation of the unit.
(When adjusting horn position, be careful not to lose adjusting hardware.)
The interface adapter (mounted to the horn) permits conduit connection. The interface adapter is threaded for standard 1/2"
pipe, and will accommodate BX cable, flexible or rigid conduit and matching connectors. The interface adapter is shown in
Figure 2 below. Figure 2:
INTERFACE ADAPTER

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All installations shall be in accordance with:
1) In Canada, CSA C22.1, Canadian Electrical Code, Part I, Safety Standard for Electrical Installations, Section 32; and the
Canadian Standard for the Installation of Fire Alarm Systems - CAN/ULC-S524.
2) In the United States, the National Electrical Code, NFPA 70, and the National Fire Alarm and Signaling Code NFPA 72.
WIRING INFORMATION:
Figure 3: Wiring Diagram
IMPORTANT: Break IN/OUT wire runs to provide for supervision of ALL connections.
APPLICATION NOTES:
1. STH-15 Horn Speakers are ULC Listed for indoor/outdoor use with a temperature range of -40°F to 151°F (-40°C to
66°C) and maximum humidity of 95% RH.
2. A blocking capacitor for DC supervision of audio lines by the FACP is factory wired in series with the speaker input.
3. Excessive bass energy can damage horn voice coils, especially at high power levels. To avoid possible damage, an
amplifier with a bass roll-off filter (horn protect circuit) should be used.
4. Always operate audio amplifiers and speakers within their specified ratings. Excessive input may distort sound quality
and may damage audio equipment. Do not exceed +130% of speaker input voltage. Improper input voltage can
damage speaker. If distortion is heard, check for clipping of the audio appliance with an oscilloscope and reduce the
amplifier input level or gain level to eliminate any clipping.
5. Do not over tighten screws or terminals. Excessive torque may affect operation. When using power tools, ensure the
torque is set to the lowest setting available.
IMPORTANT: Check the installation instructions of the manufacturers of other equipment used in the system for any guidelines
or restrictions on wiring and/or locating Notification Appliance Circuits (NAC) and notification appliances. Some system
communication circuits and/or audio circuits, for example, may require special precautions to assure electrical noise immunity
(e.g. audio crosstalk).
ANY MATERIAL EXTRAPOLATED FROM THIS DOCUMENT OR FROM COOPER WHEELOCK MANUALS OR OTHER
DOCUMENTS DESCRIBING THE PRODUCT FOR USE IN PROMOTIONAL OR ADVERTISING CLAIMS, OR FOR ANY
OTHER USE, INCLUDING DESCRIPTION OF THE PRODUCT'S APPLICATION, OPERATION, INSTALLATION AND
TESTING IS USED AT THE SOLE RISK OF THE USER AND COOPER WHEELOCK WILL NOT HAVE ANY LIABILITY FOR
SUCH USE.
IMPORTANT: READ SEPARATE "GENERAL INFORMATION" SHEET FOR INFORMATION ON THE PLACEMENT,
LIMITATIONS, INSTALLATION, FINAL CHECKOUT, AND PERIODIC TESTING OF NOTIFICATION APPLIANCES.
Limited Warranty
Cooper Wheelock products must be used within their published specifications and must be PROPERLY specified, applied,
installed, operated, maintained and operationally tested in accordance with these instructions at the time of installation and at
least twice a year or more often and in accordance with local, state and federal codes, regulations and laws. Specification,
application, installation, operation, maintenance and testing must be performed by qualified personnel for proper operation in
accordance with all of the latest National Fire Protection Association (NFPA), Underwriters' Laboratories (UL), Underwriters'
Laboratories of Canada (ULC), National Electrical Code (NEC), Occupational Safety and Health Administration (OSHA), local,
state, county, province, district, federal and other applicable building and fire standards, guidelines, regulations, laws and codes
including, but not limited to, all appendices and amendments and the requirements of the local authority having jurisdiction
(AHJ). Cooper Wheelock products when properly specified, applied, installed, operated, maintained and operationally tested as
provided above are warranted against mechanical and electrical defects for a period of three years from date of manufacture (as
determined by date code). Correction of defects by repair or replacement shall be at Cooper Wheelock's sole discretion and
shall constitute fulfillment of all obligations under this warranty. THE FOREGOING LIMITED WARRANTY SHALL
IMMEDIATELY TERMINATE IN THE EVENT ANY PART NOT FURNISHED BY COOPER WHEELOCK IS INSTALLED IN THE
PRODUCT. THE FOREGOING LIMITED WARRANTY SPECIFICALLY EXCLUDES ANY SOFTWARE REQUIRED FOR THE
OPERATION OF OR INCLUDED IN A PRODUCT. COOPER WHEELOCK MAKES NO REPRESENTATION OR WARRANTY
OF ANY OTHER KIND, EXPRESS, IMPLIED OR STATUTORY WHETHER AS TO MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE OR ANY OTHER MATTER.
USERS ARE SOLELY RESPONSIBLE FOR DETERMINING WHETHER A PRODUCT IS SUITABLE FOR THE USER'S
PURPOSES, OR WHETHER IT WILL ACHIEVE THE USER'S INTENDED RESULTS. THERE IS NO WARRANTY AGAINST
DAMAGE RESULTING FROM MISAPPLICATION, IMPROPER SPECIFICATION, ABUSE, ACCIDENT OR OTHER
OPERATING CONDITIONS BEYOND COOPER WHEELOCK'S CONTROL.
SOME COOPER WHEELOCK PRODUCTS CONTAIN SOFTWARE. WITH RESPECT TO THOSE PRODUCTS, WHEELOCK
DOES NOT WARRANTY THAT THE OPERATION OF THE SOFTWARE WILL BE UNINTERRUPTED OR ERROR-FREE OR
THAT THE SOFTWARE WILL MEET ANY OTHER STANDARD OF PERFORMANCE, OR THAT THE FUNCTIONS OR
PERFORMANCE OF THE SOFTWARE WILL MEET THE USER'S REQUIREMENTS. COOPER WHEELOCK SHALL NOT BE
LIABLE FOR ANY DELAYS, BREAKDOWNS, INTERRUPTIONS, LOSS, DESTRUCTION, ALTERATION, OR OTHER
PROBLEMS IN THE USE OF A PRODUCT ARISING OUT OF OR CAUSED BY THE SOFTWARE.
THE LIABILITY OF COOPER WHEELOCK ARISING OUT OF THE SUPPLYING OF A PRODUCT, OR ITS USE, WHETHER
ON WARRANTIES, NEGLIGENCE, OR OTHERWISE, SHALL NOT IN ANY CASE EXCEED THE COST OF CORRECTING
DEFECTS AS STATED IN THE LIMITED WARRANTY AND UPON EXPIRATION OF THE WARRANTY PERIOD ALL SUCH
LIABILITY SHALL TERMINATE. COOPER WHEELOCK IS NOT LIABLE FOR LABOR COSTS INCURRED IN REMOVAL,
REINSTALLATION OR REPAIR OF THE PRODUCT BY ANYONE OTHER THAN COOPER WHEELOCK OR FOR DAMAGE
OF ANY TYPE WHATSOEVER, INCLUDING BUT NOT LIMITED TO, LOSS OF PROFIT OR INCIDENTAL OR
CONSEQUENTIAL DAMAGES. THE FOREGOING SHALL CONSTITUTE THE SOLE REMEDY OF THE PURCHASER AND
THE EXCLUSIVE LIABILITY OF COOPER WHEELOCK.
IN NO CASE WILL COOPER WHEELOCK'S LIABILITY EXCEED THE PURCHASE PRICE PAID FOR A PRODUCT.
Limitation of Liability
COOPER WHEELOCK'S LIABILITY ON ANY CLAIM OF ANY KIND, INCLUDING NEGLIGENCE AND BREACH OF
WARRANTY, FOR ANY LOSS OR DAMAGE RESULTING FROM, ARISING OUT OF, OR CONNECTED WITH THIS
CONTRACT, OR FROM THE MANUFACTURE, SALE, DELIVERY, RESALE, REPAIR OR USE OF ANY PRODUCT
COVERED BY THIS ORDER SHALL BE LIMITED TO THE PRICE APPLICABLE TO THE PRODUCT OR PART THEREOF
WHICH GIVES RISE TO THE CLAIM. COOPER WHEELOCK'S LIABILITY ON ANY CLAIM OF ANY KIND SHALL CEASE
IMMEDIATELY UPON THE INSTALLATION IN THE PRODUCT OF ANY PART NOT FURNISHED BY COOPER WHEELOCK.
IN NO EVENT SHALL COOPER WHEELOCK BE LIABLE FOR ANY CLAIM OF ANY KIND UNLESS IT IS PROVEN THAT
OUR PRODUCT WAS A DIRECT CAUSE OF SUCH CLAIM. FURTHER, IN NO EVENT, INCLUDING IN THE CASE OF A
CLAIM OF NEGLIGENCE, SHALL COOPER WHEELOCK BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO
THE PRECEDING LIMITATION MAY NOT APPLY TO ALL PURCHASERS.
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