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REMOTE CONTROL INTERFACE
The Sterling is designed for direct interface with TRC
2
remote control system
from Remote Control Technology, Redmond, Washington. The DC1-1 cable in-
cluded with TRC
2
connects directly to the six pin connector labeled Remote on
the Sterling for quick and easy installation.
When using the TRC
2
, set the dial on the Sterling at the Rain-Off position. The
controller will disallow operation if the dial is set at any other position.
HOW THE BACKUP SYSTEM WORKS
The Sterling is equipped with a non-volatile memory that retains programmed
information during power outages of any length. There is no need to reprogram
when power is restored.
The controller is also equipped with a time-keeping circuit. A lithium battery en-
ables the time-keeping circuit to maintain accurate time during power outages of
any length.
If the power is restored during the time a watering cycle is normally under-way,
the controller will resume operation at the station normally running at the time
of power restoration.
Changing the Battery
Although the lithium battery has a potential life of 10 years, a high temperature
environment may necessitate that it be replaced more frequently. If the controller
fails to maintain current time during a power outage, the battery should be re-
placed.
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