wheelock HS4-24185W-FR, HS4-24185W-FW INSTALLATION INSTRUCTIONS

273 Branchport Avenue
Long Branch, NJ 07740 Thank you for using our products.
[phone]
www.wheelockinc.com

INSTALLATION INSTRUCTIONS

SERIES HS4 HIGH INTENSITY

FOUR WIRE APPLIANCES

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

GENERAL:

Wheelock’s Series HS4 High Intensity Horn Strobes can provide a non-synchronized strobe appliance when
connected directly to a Fire Alarm Control Panel (FACP), or provide a synchronized strobe
appliance when used in conjunction with a Sync Module (SM), Dual Sync Module (DSM) or

Wheelock’s Power Supplies. The HS4 allows for independent operation of the strobe circuit and the horn circuit. It is the

ideal choice for retrofit applications as well as new installations. The HS4 Appliances are UL Listed under Standard 1971 for
Signaling Devices for the Hearing Impaired and UL Standard 464 for Audible Signal Appliances. It is listed for indoor use only

and

can be mounted to double-gang, 4” backbox, 100mm European backbox or SHBB surface backbox (See Mounting Options). The

strobes use a Xenon flashtube with solid state circuitry enclosed in a rugged Lexan lens
to provide maximum visibility and reliability for effective visible signaling.

The horn portion of the HS4 Appliances can be field set to provide either Continuous Horn or Code 3 Horn. They can provide a
continuous horn when connected directly to the Fire Alarm Control Panel (FACP), or synchronized code 3 horn when used in
conjunction with the Sync Module (SM), Dual Sync Module (DSM) or Wheelock’s Power Supplies. HS4 appliances can be field set
to provide either High (HI) dBA, Medium (MED) dBA or Low (LO) dBA sound output. The audible portion of the HS4 appliances
can be used on coded systems in which the applied voltage is cycled on and off.

The HS4 is designed for use with either filtered DC or unfiltered Full-Wave-Rectified (FWR) input voltage. All inputs are polarized
for compatibility with standard reverse polarity supervision of circuit wiring by a Fire Alarm Control Panel (FACP).

: “Lexan” is a registered trademark of General Electric Corporation.

NOTE

: All

NOTE

WARNING: THE STROBE APPLIANCE IS A "FIRE ALARM DEVICE - DO NOT PAINT."

WARNING: PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE USING THIS PRODUCT. FAILURE TO COMPLY WITH
ANY OF THE FOLLOWING INSTRUCTIONS, CAUTIONS AND WARNINGS COULD RESULT IN IMPROPER APPLICATION, CANDELA
SETTING, INSTALLATION AND/OR OPERATION OF THESE PRODUCTS IN AN EMERGENCY SITUATION, WHICH COULD RESULT
IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.

SPECIFICATIONS:

CAUTIONS

and

WARNINGS

Model

HS4-24150C 24 16.0-33.0 150 Ceiling A,B,C,D
HS4-24185W 24 16.0-33.0 185 Wall A,B,C,D

Model

16.0VDC 0.014 0.018 0.020 0.033 0.035 0.067

24.0VDC 0.017 0.024 0.026 0.052 0.055 0.098

HS4-24185W 33.0VDC 0.021 0.027 0.035 0.068 0.069 0.110

HS4-24150C 16.0VRMS ------ 0.016 ------ 0.028 ------ 0.052

24.0VRMS ------ 0.031 ------ 0.043 ------ 0.075

33.0VRMS ------ 0.041 ------ 0.050 ------ 0.094

Description

Low 80 83 86

Continuous Horn Medium 85 88 91

High 88 91 93
Low 75 79 82

Code 3 Horn Medium 80 84 86

High 84 87 89

are identified by the symbol . All warnings are printed in bold capital letters.

Table 1: Ratings Per UL

Regulated

Voltage

VDC/VRMS

Regulated

Voltage

Voltage Range Limit

Per UL 1971
VDC/VRMS

Table 2: Rated Current Draw with Horn Only

Lo Med Hi

MEAN RMS MEAN RMS MEAN RMS

Table 3: dBA Sound Output for 24VDC Models

Volume

16.0VDC 24VDC 33.0VDC

Strobe

Candela

(cd)

Reverberant Per UL 464

Mounting

Options

P84425 D

Sheet 1 of 7

Copyright 2003 Wheelock, Inc. All rights reserved.

P84425 D

Sheet 2 of 7

NOTE: THE MAXIMUM WIRE IMPEDANCE BETWEEN STROBES SHALL NOT EXCEED 35 OHMS. THE MAXIMUM
NUMBER OR STROBES ON A SINGLE NOTIFICATION APPLIANCE CIRCUIT SHALL NOT EXCEED 47.

NOTES

:

1. Regulated Voltage: 24VDC HS4 appliances are UL Listed to operate over a voltage range from 16.0VDC to 33.0VDC using

filtered DC or unfiltered FWR input voltage.

2. Anechoic dBA is measured on-axis in a non-reflective (free field) test room using fast meter response. For peak dBA (measured

with peak meter response), add 5dBA to anechoic values shown in Table 3. Reverberant dBA is a minimum UL rating based on
sound power measurements in a reverberant test room.

3. Indoor operating temperature: +32°F to +120°F (0°C to +49°C) @ 85% RH.

4. Strobe flash rate over voltage range: 1.010 –1.045 without sync module, 1.000-1.020 with sync module

WARNING: FOR UL APPLICATIONS THESE APPLIANCES WERE TESTED TO THE OPERATING VOLTAGE LIMITS
OF 16-33 VOLTS USING FILTERED (DC) OR UNFILTERED FULL-WAVE-RECTIFIED (FWR). DO NOT APPLY 80% AND
110% OF THESE VOLTAGE VALUES FOR SYSTEM OPERATION.

WARNING: CHECK THE MINIMUM AND MAXIMUM OUTPUT OF THE POWER SUPPLY AND STANDBY BATTERY
AND SUBTRACT THE VOLTAGE DROP FROM THE CIRCUIT WIRING RESISTANCE TO DETERMINE THE APPPLIED
VOLTAGE TO THE STROBES.

Table 4: Current Ratings (AMPS)

Rated Average Current

150cd 185cd

16.0VDC 0.506 0.570

24.0VDC 0.308 0.350

33.0VDC 0.227 0.250

16.0VRMS 0.773 0.865

24.0VRMS 0.469 0.540

33.0VRMS 0.398 0.415
Rated Peak Current *

Voltage 150cd 185cd

16.0VDC 0.768 0.850

24.0VDC 0.648 0.700

33.0VDC 0.800 0.900

16.0VRMS 2.400 2.500

24.0VRMS 1.800 2.100

* The time duration for the peak current is 1 millisecond.

NOTE: Inrush current is less than rated peak current.

33.0VRMS 1.800 2.000

When calculating the total average and peak currents: Use Table 3 to determine the highest value of “Rated Average Current” for an
individual strobe (across the expected operating voltage range of the strobe), and use Table 3 to determine the highest value of “Rated
Peak Current” of an individual strobe (across the expected voltage range of the strobe), then multiply these values by the total number
of strobes; 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.

If the peak current exceeds the power supplies’ peak/inrush capacity, the output voltage provided by the power supplies may drop
below the listed voltage range of the appliances connected to the supply and the voltage may not recover in some types of power
supplies. For example, an auxiliary power supply that lacks filtering at its output stage (either via lack of capacitance and/or lack of
battery backup across the output) may exhibit this characteristic.

WARNING: MAKE SURE THAT THE TOTAL AVERAGE CURRENT AND TOTAL PEAK CURRENT REQUIRED BY ALL
APPLIANCES THAT ARE CONNECTED TO THE SYSTEM’S PRIMARY AND SECONDARY POWER SOURCES,
SIGNALING CIRCUITS, SM, DSM SYNC MODULES AND WHEELOCK’S POWER SUPPLIES 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.

P84425 D

Sheet 3 of 7