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11–1
SECTION 11
Final Power-Up
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In This Section
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Earth Ground Connections
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Wiring the AC Transformer
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AC Power-Up
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Calculating the Battery Size Needed
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Connecting the Backup Battery
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Battery Tests
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Earth Ground Connections
The designated earth ground terminal (21) must be terminated in a good earth ground for
the lightning transient protective devices in this product to be effective.
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 61–035, or equivalent, available at most electrical supply stores.
Wiring the AC Transformer
1321 Transformer
Wire the 1321 Transformer to terminals 1 and 2 on the control board. See wiring table below
for wire gauge to use.
WIRING TABLE
Distance of Transformer
From the Control Panel
Wire Gauge
to Use
Up to 50 feet # 20
50 – 100 feet # 18
100 – 250 feet # 16
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Wiring to the AC transformer must not exceed 250 feet using 16 gauge wire.
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Do not plug the transformer into the AC outlet until you are instructed to do so later in the
manual.