Edwards Signaling 2453BSA User Manual

Edwards Signaling Safety

Installation Instructions for Bell/Strobe Adapter Plate

CAUTION

Electrical supervision requires wire run to be broken at each device.

Do not loop signaling circuit field wires around bell/strobe leads.

See Figure 2 for wiring connections. Use wire nuts (not provided) to

connect wires. The strobe must be connected to a signal circuit that outputs

a constant voltage. Polarity must be observed for the unit to function

properly. Figure 2 details wiring for connecting the bell and strobe to the

same circuit or to separate circuits.

For additional wiring connection details, see the applicable installation

instructions for the signaling modules or circuits used in the fire alarm

control panel.

Mount the bell/strobe adapter plate to the electrical box using the 3/4" (19

mm) phillips head screws provided.

Mount the bell onto the adapter plate and fasten the assembly to the

electrical box with the screws provided with the bell.

Replace the gong and fasten with the gong support bolt.

Apply power and activate the unit to verify that it is operating properly.

MAINTENANCE

CAUTION

Should the unit fail to operate, do not attempt repair. Contact the

supplier for replacement.

Perform a visual inspection and an operational test twice a year or as directed

by the local authority having jurisdiction.

DESCRIPTION

The bell/strobe adapter plates come equipped with an electronic strobe signal

and has provisions for mounting a fire alarm bell (not supplied). The units are

intended for indoor use only with compatible fire protective signaling systems.

The strobes are self-synchronized to flash at 1 fps across their full operating

voltage range. Studies show that people with photosensitive conditions may

experience a photoconvulsive response from multiple random flashes of light.

This risk is minimized with these strobes. The strobe operates on any existing 2-

wire signal circuit. Separately installed "sync control modules" are not required.

The bell/strobe adapter plate is to be installed in accordance with the latest edi-

tion of NFPA 72, National Fire Alarm Code. It is recommended that these prod-

ucts be installed in accordance with the requirements in the latest recognized

edition of national and local fire alarm and electrical codes.

Synchronization of less than 200 milliseconds will be maintained for no less

than 60 hours supervision followed by 30 minutes in alarm.

See Table 1 and Figures 1, 3 and 4 for specifications.

INSTALLATION

WARNINGS

This device will not operate without electrical power. As fires

frequently cause power interruptions, discuss further safeguards with

your local fire protection specialist.

To reduce the risk of shock, always disconnect all power before

handling the unit.

To reduce the risk of shock, do not tamper with unit when circuit is

energized. Disconnect all power and allow 5 minutes for stored energy

to dissipate before handling.

Select any standard electrical box. Install the electrical box using suitable

hardware.

Bring signaling circuit field wiring into the electrical box.

Figure 1. Detailed View