6
NOTE: The minimum accumulated cycle time re-
quired to prevent a second start within a given
hour is 20 minutes. Conversely, the maximum
accumulated time to permit a cycle start on a
consecutive hour is 55 minutes. Total cycle time
of more than one hour is permissible.
NOTE: It takes about 20 minutes for the hour
dial pin that started a watering cycle to move off
the cycle-start switch behind the face panel. To
make sure the RC-4Bi will not start another cy-
cle when the combined running time of stations
1 through 4 is less than 20 minutes, the con-
troller will stop at the non-existent station #6 po-
sition and time out 20 minutes before returning
to "REST."
This completes the automatic setting of the con-
troller. Move the MODE switch to the AUTO po-
sition. The controller will now automatically con-
trol the landscape irrigation according to the
SEMI-AUTOMATIC OPERATION
The controller may be operated at any time in a semi-automatic mode simply by turn-
ing the STATION dial counterclockwise to position the desired station at the top, just
ahead of the Station pointer. Allow the automatic mechanism to advance into the de-
sired timing zone. The selected station will operate for the time set on the dial, after
which, the remaining stations will follow in sequence until the REST position again ap-
pears under the Station pointer.
RAIN SHUTDOWN
There may be occasions where it is desired to interrupt all landscape irrigation. Condi-
tions such as rainy weather, system repair, landscape renovation, or other excavation
work. The temporary shutdown of the system is accomplished by moving the MODE
switch to the OFF position. This eliminates controller output to the valves without inter-
rupting the controller timing circuitry. The controller will not operate either automati-
cally or semi-automatically. A summary of the operating instructions is provided on the
label inside the controller door.
MAINTENANCE
The controller is designed to provide years of trouble-free service. The controller re-
quires no preventative maintenance or lubrication. Should trouble occur, refer to the
Troubleshooting chart for possible remedies, or contact your local authorized Rain
Bird dealer.
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