Hochiki America HEC24 Series Instructions

VISIBLE AND/OR AUDIBLE
SIGNALING APPLIANCES

I. INTRODUCTION

The Hochiki America models HEC24, HES24, HEH24, HEH12, HEC3-24, HES3-24, HEC3-12, HES3-12, WHEC24, WHES24 are high quality audible and/or visible signaling appliances. The
high intensity strobe utilizes a Xenon flash tube that generates a high-intensity flash visible from all angles. This appliance is intended to provide a visible, audible or audible/visible, depending
on the model, notification signal for the purpose of life safety and property protection. The HEC3-24, HES3-24, HEC3-12, HES3-12 are provided with a slider switch which allows for candela
selection at the installation site; the candela intensities which can be selected are 15Cd, 30Cd, 60Cd, 75Cd, or 110Cd (24VDC only). The HEC24 and HES24 are fixed candela units; the
candela intensities which can be ordered, are 177Cd and 15/75Cd. The WHEC24 and WHES24 are fixed candela units, available in a 75 candela intensity only. This appliance is ideal for any
occupancy that requires notification appliances per the applicable building or fire code or wherever dependable alarms are required.
The HEC24, HES24, HEC3-24, HES3-24, HEC3-12, HES3-12 strobe is listed in compliance with ANSI/UL 1971, Signaling Appliances for the Hearing Impaired (The 15/75Cd model on the
HEC24 and HES24 is additionally listed in compliance with ANSI/UL1638). The WHEC24 and WHES24 strobe is listed in compliance with ANSI/UL 1638, Visual Signaling Appliances - Private
Mode Emergency and General Signaling.

II. LOCATION

This appliance is intended for use in Fire Alarm Systems and is to be installed in accordance with this manual, the recommendation of the local authorities having jurisdiction, and other NFPA
documents that provide standards on notification appliances for protective signaling systems. The HEC24, HES24, HEH24, HEH12, HEC3-24, HES3-24, HEC3-12, HES3-12 are intended for
indoor installations only; this appliance is not listed for outdoor or drip proof applications. The WHEC24 and WHES24 are intended for indoor or outdoor installations; this appliance is rated for
outdoor or drip proof applications when used in conjunction with the HGOE Enclosure.
Wall mounted strobe and horn/strobe appliances shall have their entire lens at heights above the finished floor of not less than 80 in. (2m) and not greater than 96 in. (2.4m)**. Spacing shall be
in accordance with Table A. If a room configuration is not square, the room size that will entirely encompass the room or subdivide the room into multiple squares shall be used. Wall mounted
horn only appliances shall have their tops above the finished floors at heights of not less than 90 in. (2.30m) and below the finished ceilings at heights of not less than 6 in. (152mm). Different
mounting heights shall be permitted by the AHJ provided the sound pressure level requirements of NFPA 72 are met.

III. MOUNTING, ROUGH-IN BOX AND RUN WIRING

This unit is designed for mounting to most single gang boxes, 4" square outlet boxes, 2-gang masonry boxes or non-metallic 2-gang switch boxes. Conduit entrance to boxes should be
selected to insure sufficient wiring clearance.
1. Run a minimum 18 gauge insulated 2 or more conductor cable.
2. Mount a box for each remote signaling appliance. Screw bracket onto box. Insert signal into bracket and slide to the right firmly into the terminal block receptacle. Place housing over
mounted assembly and screw together with single screw at the bottom of the signal. Cover screw with plastic tab.
NOTICE: WIRING SHOULD BE CONNECTED TO MOUNTING BRACKET PRIOR TO MOUNTING SIGNAL. INCOMING POSITIVE POWER LEAD MUST BE BROKEN AND EACH LEAD IS
TO BE INSERTED INTO EACH OF THE TOP TWO TERMINALS. IF TWO POWER RUNS ARE MADE TO THE SIGNAL, ONE FOR THE STROBE AND ONE FOR THE HORN, ONLY ONE OF
THE RUNS MUST HAVE ITS POSITIVE LEAD BROKEN AND PLACED UNDER THE TWO SEPARATE TOP TERMINALS. A BARRIER IS PROVIDED TO PREVENT BOTH LEADS FROM
BEING PLACED UNDER THE SAME TERMINAL.
Room Spacing for Wall-Mounted Visible Appliances per NFPA 72, 2010 Edition
Table A
Maximum Room Size
Meters Feet
6.10 x 6.10 20 x 20
8.53 x 8.53 28 x 28
9.14 x 9.14 30 x 30
12.2 x 12.2 40 x 40
13.7 x 13.7 45 x 45
15.2 x 15.2 50 x 50
16.5 x 16.5 54 x 54
16.8 x 16.8 55 x 55
18.3 x 18.3 60 x 60
19.2 x 19.2 63 x 63
20.7 x 20.7 68 x 68
21.3 x 21.3 70 x 70
24.4 x 24.4 80 x 80
27.4 x 27.4 90 x 90
30.5 x 30.5 100 x 100
33.5 x 33.5 110 x 110
36.6 x 36.6 120 x 120
39.6 x 39.6 130 x 130
NA = Not allowable

HEC24/HES24/HEC3-24/HES3-24/HEC3-12/HES3-12 PRODUCT INFORMATION

Minimum Required Light Output ( Effective Intensity, Cd)
Two Lights per
One Light
Room (Located on
per Room
Opposite Walls)
15 NA
30 Unknown
34 15
60 30
75 Unknown
94 60
110 Unknown
115 Unknown
135 95
150 Unknown
177 Unknown
184 95
240 135
304 185
375 240
455 240
540 305
635 375
HEC24, HES24, HEH24 & HEH12 SERIES
HEC3-24, HEC3-12, HES3-24 & HES3-12 SERIES
ANSI/UL 1971 and/or ANSI/UL 464 COMPLIANT
WHEC24 & WHES24 SERIES
ANSI/UL 1638 and/or ANSI/UL 464 COMPLIANT
Four Lights per Room
(One Light per Wall)
NA
NA
NA
15
19
30
30
28
30
37
43
60
60
95
furniture or walls block strobe light.
95
135
NOTICE:
135
THE VISUAL SIGNAL MUST BE IN THE DIRECT VIEWING AREA OF THE
185
OCCUPANT IN ORDER TO BE SEEN.
VISUAL SIGNALS FOR THE HEARING IMPAIRED ARE ONLY ONE METHOD
OF ALERTING THE HEARING IMPAIRED. VISUAL SIGNALS MAY NOT BE
THE PREFERRED METHOD FOR NOTIFYING ALL HEARING IMPAIRED
INDIVIDUALS.
THE STROBE LIGHT MUST BE SEEN BY THE SLEEPING PERSON. IF THE
PERSON HAS HEAD TURNED OR OTHERWISE UNABLE TO BE ALERTED
BY VISUAL, THE STROBE WILL NOT BE EFFECTIVE.
Strobe light can not be seen when objects such as doors,
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