Wheelock HS4-24MCW Series Installation Instructions

273 Branchport Avenue
Long Branch, NJ 07740
(800) 631-2148 (USA)
(800) 397-5777 (CANADA)
www.wheelockinc.com
Use this product according to this instruction manual. Please keep this instruction manual for future reference.

GENERAL:

Wheelock's Series HS4-24MCW Multi-Candela Horn Strobe provides four selectable candela settings (15, 30, 75, 110). The HS4-24MCW 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 HS4-24MCW appliance is UL Listed
under Standard 1971 for Signaling Applicances for the Hearing Impaired and UL Standard 464 for Audible Signal Appliances. The HS4-24MCW is also ULC Listed
under Standard CAN/ULC-S526-02 for Visual Signaling Appliances and Standard CAN/ULC-S525-99 for Audible Signaling Appliances for Fire Alarm Systems. It is
listed for indoor use only and can be mounted to double-gang, 4" backbox, 100mm European backbox or SHBB surface backbox (See wiring and mounting
information). This appliance is listed for wall mounting only. The HS4-24MCW appliance uses a xenon flashtube with solid state circuitry enclosed in a polycarbonate
lens to provide maximum visibility and reliability for effective visible signaling.
The horn portion of the HS4-24MCW appliance can be field set to provide either a continuous horn when connected directly to the fire alarm control panel (FACP), or a
synchronized code 3 horn when used in conjunction with the Sync Module (SM), Dual Sync Module (DSM) or Wheelock power supplies. The horn can be field set to
provide either high (HI) dBA, medium (MED) dBA or low (LO) dBA sound output.
NOTE: The Code 3 temporal pattern (1/2 second on, 1/2 second off, 1/2 second on, 1/2 second off, 1/2 second on, 1-1/2 off and repeat) is specified by ANSI and
NFPA 72 for standard emergency evacuation signaling. The Code 3 Horn should be used only for fire evacuation signaling and not for any other purpose.
The HS4-24MCW 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 an FACP.
NOTE: All Canadian Installations should be in accordance with the Canadian Standard for the Installation of Fire Alarm Systems – CAN/ULC-S524-01 and Canadian
Electrical Code, Part 1. Final acceptance is subject to authorities having jurisdiction (AHJ).
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:

Model
HS4-24MCW
Description
Low
Continuous Horn Medium
High
Low
Code 3 Horn Medium
High
Figure 1: ULC Directional Characteristics
95dB
-3dB
-3dB
30° 27°
-6dB
48°
60°
83dB
When calculating the total current: Use Tables 3 & 3A to determine the highest value of "RMS Current" for an individual HS4 then multiply the value by the total
number of HS4 Appliances. Be sure to add the currents for any other appliances powered by the same source and to include any required safety factors.
NOTE: The maximum number of strobes on a single notification appliance circuit shall not exceed 50.
CAUTION: These notification appliances are UL Listed as "Regulated". They are intended to be used with FACPs whose notification circuits are UL Listed as
"Regulated." These appliances shall not be used on UL Listed "Special Application" notification circuits unless the appliances are identified to be compatible in the
installation instructions of the FACP or unless the FACP is identified to be compatible in this instruction manual.
Copyright 2005 Wheelock, Inc. All rights reserved.
Thank you for using our products.
INSTALLATION INSTRUCTIONS
SERIES HS4-24MCW MULTI-CANDELA FOUR WIRE APPLIANCES
(WALL MOUNT VERSIONS)
Table 1: UL/ULC Listed Models and Ratings
Regulate
Voltage Limit Per UL 1971
(VDC/VRMS)
24
Table 2: dBA Sound Output for 24VDC Models
Reverberant Per UL 464
Volume
16.0VDC
80
85
88
75
80
84
-6dB
-3dB
-6dB
20° 30°
95dB
81dB
Voltage Range Voltage Range Per
CAN/ULC-S526-02
(VDC/VRMS)
16.0-33.0
24VDC 33.0VDC
83 86
88 91
91 93
79 82
84 86
87 89
NOTES:
85dB
1. The strobe will produce 1 flash per second over the "Regulated Voltage"
range.
2. This horn/strobe model meets the required light distribution patterns
defined in UL 1971 and ULC-S526-02.
3. This model is UL/ULC Listed for indoor use with a temperature range of
+32°F to +120°F (0°C to +49°C) and maximum humidity of 93% ± 2%
RH. The effect of shipping and storage temperatures shall not adversely
affect the performance of the appliance when it is stored in the original
cartons and not subjected to misuse or abuse.
80°
-3dB
-6dB
(VDC/VRMS)
20.0-31.0
Anechoic dBA @ 10 Ft. Per CAN/ULC-S525-99
20.0VDC 24VDC
88 90
93 95
97 99
88 90
93 95
97 99
Strove
Candela
(cd)
15/30/75/110
31.0VDC
91
97
100
91
97
100
P84391 G
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