Installing The Backup Battery; Earth Ground Connections - First Alert FA147C Installation Instructions Manual

Installing The Back-Up Battery
1. Place the 12-volt back-up battery in the control cabinet. To calculate the correct battery size
for an installation, refer temporarily to ÒCalculating the Battery Size NeededÓ in the Final
Power Up section.
U U U U L L L L
Use a 4AH battery or larger for UL installations.
2. Attach Red and Black wires on the battery connector cable to the control board as follows:
a. Red to the positive (+) battery tab on the control board (see Summary of Connections
b. Black to the negative (Ð) battery tab on the control board .
Ê
These wires may have already been connected to the battery tabs on the control board. If so,
disregard steps a. and b.
Do not attach the connector cable to the terminals on the battery until you are instructed to do
so later in the manual.

Earth Ground Connections

This product has been designed and laboratory-tested to ensure its resistance to damage from
generally expected levels of lightning and electrical discharge, and does not normally require
an earth ground. If an earth ground is desired for additional protection in areas of severe
electrical activity, terminal 21 on the control board, or the cabinet, may be used as the ground
connection point. The following are examples of good earth grounds available at most
installations:
Metal Cold Water Pipe:
Use a non-corrosive metal strap (copper is recommended) firmly secured to the pipe to which
the ground lead is electrically connected and secured.
AC Power Outlet Ground:
Available from 3-prong, 120VAC, power outlets only. To test the integrity of the ground
terminal, use a three-wire circuit tester with neon lamp indicators, such as the UL-Listed Ideal
Model 61Ð035, or equivalent, available at most electrical supply stores.
Diagram for location, if necessary).
ÊÊSection 2. Installing the Control
2Ð5