Wheelock STH-4M30WC Installation Instructions

273 Branchport Avenue
Long Branch, N.J. 07740
(800) 631-2148
www.wheelockinc.com
Use this product according to this instruction manual. Please keep this instruction manual for future reference.

GENERAL:

The series STH-4M30WC Cluster Speaker Assembly is designed for ceiling, wall or roof mounting in high ambient noise level
environments. The Series STH-4M30WC Cluster Speakers are a speaker/visual alerting system, equipped with four STH-30 horn
loudspeakers, and a DC-MAX-C Strobe, mounted to a NEMA 4X rated fiberglass enclosure, 13.50"W X 15.50"L X 6.25"D.
Speakers and Strobe are pre-wired to the internal terminal block. The Series STH-4M30WC appliances are weatherproof.
The STH-30 loudspeaker provides multiple power requirements with high dBA output at each power tap. Factory setting for each
speaker is 30 Watts, at 70 Volts, (Setting #5). The ST-H30 design incorporates a compression driver, mounted on a double re-entrant
horn for maximum output at minimum power. The speaker line inputs are compatible with standard supervision of circuit wiring by
a Voice Control Panel. A capacitor is wired to the terminal block in series with the speaker for this purpose.
The DC-MAX-C strobe is a 5-inch tall, 6.2-inch diameter, cylindrical strobe light. The DC-MAX-C strobe provides a highly visible,
clear lens, 100 candela and 60 double flashes per minute that can be seen in all directions. It operates on all standard voltages from
10.5VDC to 31.0VDC, and contains a blocking diode that allows this device to be supervised using standard reverse polarity.
: All and
NOTE CAUTIONS
WARNING: 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 (SPEAKER):

Each speaker has a slotted rotating switch used to change the dB setting for the output. Table 1 shows the settings and the outputs.
WARNING: WHEELOCK STRONGLY RECOMMENDS THAT THE VOLTAGE APPLIED TO THESE PRODUCTS BE WITHIN
THEIR RATED INPUT VOLTAGE RANGE. THE APPLICATION OF IMPROPER VOLTAGE MAY RESULT IN DEGRADED
OPERATION OR DAMAGE TO THESE PRODUCTS, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY
OR DEATH TO YOU AND/OR OTHERS.
: (Per Speaker)
NOTES
1. Power Handling Capacity (RMS): 30W
2. Sound Dispersion: 70 Degrees
3. Constant Voltage Line: 70Vrms
4. Frequency Response: 275-10KHz
5. Sound Level (Peak): 125dB at 30W, 1 Meter
5. Dimensions: 10"D X 10-1/2"L
Copyright 2001 Wheelock, Inc. All rights reserved.
Thank you for using our products.
Installation Instructions
SERIES STH CLUSTER SPEAKER ASSEMBLY
(WEATHERPROOF)
are identified by the symbol
WARNINGS
Table 1: Speaker Output
Setting
1
2
3
4
5
6
7
. All warnings are printed in bold capital letters.
dB at 1 Meter
113
116
119
122
125
Not Used
Not Used
PRESSURE
LEVEL
Distance from horn (Feet on axis)
Watts at 70V
2.0W
3.8W
7.5W
15.0W
30.0W
Not Used
Not Used
P84196 C
Sheet 1 of 4