Final Power-Up Procedure; Earth Ground Considerations; Connecting The Transformer - ADEMCO VISTA-120 Installation And Setup Manual

Final Power-Up Procedure

This section provides the following information:
General
Information
Earth Ground
Considerations
Connecting the
Transformer
–58–
SECTION 16
•

Earth ground considerations

• Connecting the AC transformer
• Connecting the backup battery
• Auxiliary and Polling Loop Current Drain Worksheets
• You can power the control from a 1361 transformer, rated 16.5VAC, 40VA,
which plugs directly into a 24 hour, 120VAC, 60 Hz outlet.
• If using power line carrier devices, you can use the 4300 transformer instead
in 120VAC, 60Hz countries, and the XF10 in 220/240VAC, 50Hz countries
where transformers can be located outside of the control cabinet (e.g.
Australia).
In order for the lightning transient protective devices in this product to be
effective, the designated earth ground terminal (terminal 30), must be
terminated in a good earth ground.
copper wire run at a maximum length of 7.5m. 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 power outlets only. To
test the integrity of the ground terminal, use a three-wire circuit tester with
neon lamp indicators.
1. Use the Polling Loop Current Drain and Auxiliary Device Current Drain
Worksheets found later in this section to make sure that the currents
consumed by the devices connected to the system do not exceed the system's
respective ratings.
Failure to observe the polling loop current rating will cause polling loop malfunction
(CHECK 997 will be displayed). Failure to observe the auxiliary output current rating
will result in a battery which does not charge properly or possibly a tripped circuit
breaker.
2. Connect all installed devices to the control.
3. Wire the transformer to the panel (before connecting the battery) or wire
the 4300 or XF10 transformer (if using Powerline Carrier devices) in
countries where the transformer can be located outside of the control
cabinet (refer to the following diagrams).
4. Plug the transformer into a 24 hour, uninterrupted, AC mains outlet.
After a few seconds, the keypad display will appear.
We recommend using 1.3mm diameter