wheelock 31T-115 INSTALLATION INSTRUCTIONS

273 Branchport Ave.
Long Branch, N.J. 07740 Thank you for using our products.
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www.wheelockinc.com

INSTALLATION INSTRUCTIONS

HORNS

Use this product according to this instruction manual. Please keep this instruction manual for future reference.

GENERAL:

Wheelock offers a complete line of high performance AC horns. Wheelock's Horns are ideal for General Signaling Applications
where high output, low current draw and dependability are of critical concern.

All models provide rugged, vandal resistant construction with die cast housing to protect the horn mechanism. A full range of
mounting options are provided for indoor and outdoor installations.

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.

WARNING: THE 31T HORN APPLIANCE IS A “FIRE ALARM DEVICE – DO NOT PAINT.”

SPECIFICATIONS:

. All warnings are printed in bold capital letters.

Table 1: Ratings Per UL

Model

Number

Regulated

Voltage

(VRMS)

Voltage

Range

(VRMS)

Maximum

RMS Current

(AMPS)

Reverberant

dBA

Per UL 464

Mounting

Options

31T-115 120 96-132 0.160 87 A,B,C,D,E

WARNING: FOR UL APPLICATIONS THESE APPLIANCES WERE TESTED TO THE OPERATING VOLTAGE LIMITS
OF 96-132 VOLTS. DO NOT APPLY 80% AND 110% OF THESE VOLTAGE VALUES FOR SYSTEM OPERATION.

WARNING: MAKE SURE THAT THE TOTAL RMS CURRENT REQUIRED BY ALL APPLIANCES THAT ARE
CONNECTED TO THE SYSTEM’S PRIMARY AND SECONDARY POWER SOURCES DO NOT EXCEED THE POWER
SOURCES’ RATED CAPACITY OR THE CURRENT RATINGS OF ANY FUSES ON THE CIRCUITS TO WHICH THESE
APPLIANCES ARE WIRED. OVERLOADING POWER SOURCES OR EXCEEDING FUSE RATINGS COULD RESULT IN
LOSS OF POWER AND FAILURE TO ALERT OCCUPANTS DURING AN EMERGENCY, WHICH COULD RESULT IN
PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.

When calculating the total currents: Use Table 1 to determine the highest value of “RMS Current” for an individual horn (across
the expected operating voltage range of the horn), then multiply these values by the total number of horns; be sure to add the
currents for any other appliances, including audible signaling appliances, powered by the same source and include any required
safety factors.

.

WIRING DIAGRAM:

Figure 1: Figure 2: Typical Wiring

FROM PRECEDING APPLIANCE,
FIRE ALARM CONTROL PANEL (FACP)

+

-

+

TO NEXT APPLIANCE OR

END OF LINE

-

RESISTOR (EOLR)

Copyright 2004 Wheelock, Inc. All rights reserved.

(+) (-)

P10010 AC

Sheet 1 of 4

MOUNTING OPTIONS:

CAUTION: The following figures show the maximum number of field wires (conductors) that can enter the backbox used

with each mounting option. If these limits are exceeded, there may be insufficient space in the backbox to accommodate the
field wires and stresses from the wires could damage the product.

Although the limits shown for each mounting option comply with the National Electrical Code (NEC), Wheelock recommends
use of the largest backbox option shown and the use of approved stranded field wires, whenever possible, to provide additional
wiring room for easy installation and minimum stress on the product from wiring.

BASIC HORN

A

FLUSH BACKBOX
TO BE MOUNTED
IN WALL

FLUSH MOUNTING

THE BASIC HORN IS SUPPLIED
WITH SCREW TERMINALS FOR

CONNECTION TO THE POWER

SOURCE, (2) #10-32 SCREWS

FOR ACCESSORIES *

MOUNTED TO THE UNIT

GRILLE IF REQUIRED, AND

(2) #8-32 SCREWS FOR

INSTALLATION.

* IF NO ACCESSORIES ARE

USED REQUIRING THESE

SCREWS, INSERT THEM INTO

THE UNUSED HOLES.

B

WEATHER RESISTANT MOUNTING

1/2" CONDUIT
WEATHER RESISTANT
BACKBOX TO BE
MOUNTED IN WALL

MAXIMUM NUMBER OF CONDUCTORS

AWG #18 AWG #16 AWG #14 AWG #12

4 4 44

D

CONCEALED CONDUIT MOUNTING

ADAPTOR PLATE WITH
(4) #8-32 & #6-32
SCREWS & BUSHING

STANDARD 4"
SQUARE BACKBOX

ENTRANCE
ON TOP

BASIC HORN

(4) #8-32 SCREWS

EXISTING BOX
IN WALL

BASIC HORN

FLUSH PLATE WITH
(2) #10-32 AND
(2) #8-32 SCREWS

MAXIMUM NUMBER OF CONDUCTORS
AWG #1 8 AWG #16 AWG #1 4 AWG #12

4

C

SEMI-FLUSH PLATE
WITH (2) #8-32
SCREWS

BASIC HORN

(2) #10-32
SCREWS

MAXIMUM NUMBER OF CONDUCTORS

AWG #18 AWG #16 AWG #14 AWG #12

E

BASIC HORN

4 4 4

SEMI-FLUSH MOUNTI NG

STANDARD 4" SQUARE
BACKBOX TO BE
MOUNTED IN WALL

(2) #8-32 SCREWS

4 4 44

SURFACE MOUNTING

STANDARD 4" SQUARE
BACKBOX TO BE
MOUNTED ON WALL
SURFACE

(2) #10-32

SCREWS

MAXIMUM NUMBER OF CONDUCTORS

AWG #18 AWG #16 AWG #14 AWG #12

BASIC HORN

(2) #8-32 SCREWS

4 4 44

(2) #10-32
SCREWS

MAXIMUM NUMBER OF CONDUCTORS

AWG #18 AWG #16 AWG #14 AWG #12

4 4 44

(2) #8-32 SCREWS

P10010 AC

Sheet 2 of 4