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273 Branchport Avenue
Long Branch, N.J. 07740
(800) 631-2148
www.cooperwheelock. com
Use this product according to this instruction manual. Please keep this instruction manual for future reference.
MODELS:
STH-15S
STH-15SR
GENERAL:
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, 1 to 15 Watts for either 25VRMS or 70VRMS audio systems. The Series 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 speaker line inputs are compatible with standard reverse polarity supervision of circuit wiring by a Fire Alarm Control
Panel (FACP). A capacitor is wired in series with the multi-tap transformer for this purpose.
NOTE: All CAUTIONS and WARNINGS are identified by the symbol
WARNING: PLEASE READ THESE INSTRUCTIONS CAREFULLY. FAILURE TO COMPLY WITH ANY OF THE
FOLLOWING INSTRUCTIONS, CAUTIONS AND WARNINGS 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:
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 @ 15W, 1 Meter
6. Dimensions: 7-7/8W X 8-3/4H X 9-5/16L
CAUTION: 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 2006 Cooper Wheelock, Inc. All rights reserved.
Thank you for using our products.
INSTALLATION INSTRUCTIONS
STH-15 HORN SPEAKER WITH MULTI-TAP TRANSFORMER
AND CAPACITOR FOR LINE SUPERVISION
Grey
UL Listed under UL 1480 for Speaker Appliances
Red
UL Listed under UL 1480 for Speaker Appliances
Table 1: Wattage Selector Switch Settings and dBA
Setting
70V
1
0.9W
2
1.8W
3
3.8W
4
7.5W
5
15.0W
6
Not Used
7
Not Used
. All warnings are printed in bold capital letters.
dB
25V
93
Not Used
96
Not Used
96
0.48W
99
0.94W
102
1.8W
Not Used
7.5W
Not Used
15.0W
dB
Not Used
Not Used
90
90
93
99
102
Sheet 1 of 4
P82697 K
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Summary of Contents for Cooper Wheelock STH-15S
- Page 1 CAUTION: 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 2006 Cooper Wheelock, Inc. All rights reserved. P82697 K Sheet 1 of 4...
- Page 2 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.
- Page 3 WIRING INFORMATION: UL Listed Models Remove the Interface Adapter, to expose the two (2) screw terminals, and connect the audio installation wires as shown in Figure 3. The terminals are numbered (1 and 2) to indicate phasing, which should be maintained throughout the system. For example: In an installation with multiple horns, connect the same color audio wire to all number 1 terminals and another color audio wire to all number 2 terminals to ensure proper phasing, as shown in Figure 4.
- Page 4 Inc.'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, Inc. In no event shall Cooper Wheelock, Inc. be liable for any claim of any kind unless it is proven that our product was a direct cause of such claim.
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