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minutes as necessary by pressing UP or DOWN. After 5 seconds, the dis-
play will return to normal.
10.2 Changing Skimming/Heating Cycles
The Sentry Control System allows you to easily adjust two separate aspects
of each of the skimming/heating cycles (1) the time of day at which each
cycle begins, (2) the duration of each cycle.
To make adjustments, first press CYCLE to enter the skimming/heating cycle
programming mode. The LCD screen will display the following in the upper
right corner:
ADJUST START TIME
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CYCLE
This means the system is ready to accept your changes to the start time for
skimming/heating cycle number one. Simultaneously, the large four-digit dis-
play in the center of the screen displays the currently programmed start time
for that cycle. At this point, you have four options. You may:
(1) Press UP or DOWN to adjust the start time in increments of 30
minutes.
(2) Press CYCLE to display and adjust each subsequent skimming/heating
cycle start time. With each press, the currently programmed status will be
shown in the large four digit display. To adjust any display value, simply
press UP or DOWN.
(3) Press SELECT to move down the menu from Start Time to Duration.
With each press, the programmed duration will be shown in the large four-
digit display. Press UP or DOWN to adjust the duration in increments of 15
minutes.
(4) Press DISPLAY to make the skimming/heating cycle programming
characters disappear from the screen and the main display return to show-
ing the water temperature. If no sensor is pressed within 30 seconds, the
screen automatically returns to the standard water temperature display.
At any time, you may check the programming of any aspect of any skim-
ming/heating cycle by first pressing CYCLE then moving through the menu
by pressing either CYCLE or SELECT. The programming is changed only by
pressing UP or DOWN during this process.
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START TIME