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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. 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.
2. Run a minimum 18 gauge insulated 2 or more conductor cable.

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.

GEC, GEH & GES

SERIES

UL 1971 COMPLIANT

CAN/ULC S526-M87 Compliant

VISIBLE AND/OR AUDIBLE SIGNALING APPLIANCES

I. INTRODUCTION

The Gentex Model GEC/GES/GEH, 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 and GES3 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, 75Cd, or 110Cd.  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 (15/75Cd model
is additionally listed in compliance with UL1638).

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 GEC/GES 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.

Maximum Room Size

Minimum Required Light Output, Candela (cd) Effective Intensity

One Light Per Room (cd)

Two Lights Per Room (Located on

Opposite Walls) (cd)

Four Lights Per Room (One Light Per

Wall) (cd)

20’x20’

1 5

N/A

N/A

30’x30’

3 0

1 5

N/A

40’x40’

6 0

3 0

15*

50’x50’

9 5

6 0

30*

60’x60’

135

9 5

30*

70’x70’

185

9 5

60*

80’x80’

240

135

6 0

90’x90’

305

185

9 5

100’x100’

375

240

9 5

110’x110’

455

240

135

120’x120’

540

305

135

130’x130’

635

375

185

**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

TABLE A  *- Must be used with the AVS44 control module due to 

distance between strobes being less than 55ft.

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