Self Diagnostic Circuit Breaker
The Toro DDC controller will detect a short circuit caused by a defective solenoid
or a short in the valve wiring. As soon as the short is detected, that station is
turned OFF. The next station in the watering sequence is turned ON and the
shorted station number icon together with OFF will start flashing.
NOTE: If the short is in the master valve, only OFF will start flashing.
Verification of a short circuit can be done in the SEMI-AUTO dial position
Press NEXT to the flashing station.
Press -/OFF to stop the flashing.
Press +/ON to turn ON the station.
If the flashing appears once again, check your wiring to this particular station. If
the wire connection is fine, the cause of the short is the solenoid, which should be
replaced.
NOTE: The 9 VDC battery must be installed for the proper operation of the
diagnostic circuit breaker.
About the DDC memory
This controller is equipped with "on board" back up battery that will keep the
program memory for a few years in case power is not available.
If you wish to program the controller without connecting it to AC power, install the
9 volt alkaline battery.
The 9 volt battery will turn on both displays and programming is possible.
Power failure indication
During a power failure the “24V” will start flashing and will continue until AC power
is restored or the 9 volt battery is exhausted. A blank display indicates that there
is no AC power and the 9 volt alkaline battery, if installed, is dead.
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Electrical Specifications:
Input power:
• 120 VAC, 50/60 Hz
(Plug-in transformer, CUL approved)
• 230 VAC, 50/60 Hz
(Plug-in transformer, CE Mark)
• 240 VAC, 50/60 Hz
(Plug-in transformer, SAA)
• 60 W (0.50 amps) maximum
-11-
Station Output Power:
• 24 VAC
6 VA (0.25 amps) per station maximum
6 VA (0.25 amps) pump start/master valve
12 VA (0.50 amps) total load
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