I. INTRODUCTION
The Gentex Model GEC3-12/GES3-12/GEH12, horn/strobe, strobe or horn, is a high quality audible and/or visible signaling appliance. 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 GEC3-12 and GES3-12 are provided with a slider switch
which allows for candela selection at the installation site. The intensities which can be selected are 15Cd, 30Cd, 60Cd or 75Cd. 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 strobe is listed in
compliance with UL 1971, Signaling Appliances for the Hearing Impaired and CAN/UL S526-M87 Visible Signal Devices for Fire Alarm Systems.
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 GEC3-12/GES3-12 is
intended for indoor installations only. This appliance is not weatherproof for outdoor or drip proof applications.
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 90in. (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.
Two Lights per Four Lights per
Meters Feet One Light Room (Located on Room (One Light
per Room Opposite Walls) per Wall)
6.10 x 6.10 20 x 20 15 NA NA
8.53 x 8.53 28 x 28 30 Unknown Unknown
9.14 x 9.14 30 x 30 34 15 NA
12.2 x 12.2 40 x 40 60 30 15
13.7 x 13.7 45 x 45 75 Unknown Unknown
15.2 x 15.2 50 x 50 94 6 30
16.5 x 16.5 54 x 54 110 Unknown Unknown
18.3 x 18.3 60 x 60 135 95 30
21.3 x 21.3 70 x 70 184 95 60
24.4 x 24.4 80 x 80 240 135 60
27.4 x 27.4 90 x 90 304 185 95
30.5 x 30.5 100 x 100 375 240 95
33.5 x 33.5 110 x 110 455 240 135
36.6 x 36.6 120 x 120 540 305 135
39.6 x 39.6 130 x 130 635 375 185
Minimum Required Light Output (Effective Intensity, Cd)
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.
Attention: 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.
GEC3-12, GES3-12
& GEH12 SERIES
UL 1971 COMPLIANT
CAN/ULC S526-M87 Compliant
VISIBLE AND/OR AUDIBLE SIGNALING APPLIANCES
**Effective Intensity Requirements
for Sleeping Areas
Visible Notification Appliance
Distance from Ceiling to Top of Lens Intensity
greater than or equal to 24" 110cd
less than 24" 177cd
1
NA = Not allowable.
Table A
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