Ac Power, Battery, And Ground Connections; 1321 Transformer; Battery Connections; Battery Saver Feature - Honeywell ADEMCO VISTA Series Installation And Setup Manual

AC Power, Battery, and Ground Connections

1321 Transformer

Battery Connections

Battery Saver Feature

Earth Ground

Mounting and Wiring the Control (Continued)
Connect the 1321 Transformer (1321CN in
Canada) to terminals 1 and 2 on the control
board. See Wire Run Chart for wire size to
use.
 Use caution when wiring the transformer
to the control to guard against blowing
the transformer fuse (the fuse is non-
replaceable).
 Wiring to the AC transformer must not exceed 250 feet using 16-gauge wire. The voltage
reading between terminals 1 and 2 of the control must not fall below 16.5VAC or an "AC
LOSS" message will be displayed.
 Do not plug the transformer into the AC outlet until all wiring connections to the control
are complete. As a safety precaution, always power down the control when making such
connections.
1. Place the 12-volt backup battery in the cabinet.
2. After all connections to the control are completed and AC power has been applied,
connect the red and black flying leads on the control board to the battery. Do not attach
these leads to the battery terminals until all connections are completed.
UL
For UL installations and Residential fire installations, refer to the chart on page 2-2
at left for the correct battery size required to meet the mandatory standby time.
The battery will disconnect from the system after its voltage decreases below 9VDC. This
assists the control panel in recharging the battery when AC is restored.
IMPORTANT: The panel will not power up initially on battery power only. You must plug the
transformer in first, and then connect the battery.
 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 25 on the control board, or the cabinet, may be used as the ground connection
point (use minimum 14AWG wire). 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 3-wire circuit tester with neon lamp indicators, such as
the UL Listed Ideal Model 61-035, or equivalent, available at most electrical supply stores.
VISTA-15P/20P/SIA Installation and Setup Guide
Wire Run Chart
Distance from control
Up to 50 feet
50–100 feet
100-250 feet
5
Wire Size
# 20
# 18
# 16