CONNECTING AN EARTH GROUND
A power surge is a sudden rise in voltage on the power main line. It is
then often followed by a drop in voltage as the power line equipment
tries to protect area users. A lightning strike on the power grid is the
most common cause of power surges and can be damaging to the
controller. *Surge protection is built into the Custom Command PC
board to reduce the potential for surge damage by shunting the voltage
to earth ground. Therefore, an important step in the installation
process is to properly connect the controller to an earth ground
source, especially if the controller is located in a lightning-prone area.
*Note: The Custom Command international units are manufactured
without output surge protection. If output surge protection is required,
contact your local Toro dealer for assistance.
Caution: The built in surge protection components cannot
effectively protect the controller circuitry from power surge unless
properly connected to an earth ground source.
To connect an earth ground:
1.
Route a 12–16-gauge (2.0–1.0mm
2
) solid copper wire in the most
lug, located on the
direct path from the “EART H GN D”
controller’s terminal board (see item 20 on page 3), to an earth
ground source such as metal (not plastic) water pipe or copper-
clad ground rod.
TEST
24V
AC
Figure 8
See Figure 8.
G
N
D
2.
Clamp the bare wire securely
to the pipe or ground rod.
Make sure the wire contact
area is free of dirt and
corrosion.
SENSOR
Earth Ground
Lug
Earth Ground
Connection
Installation Procedures
23
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
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| Document Type | Owner's Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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