Sundance Spas 850 - Manual (Page 31)

Summer Logic: In warm weather, the water temperature in the hot tub may
exceed the set temperature. This condition may occur due to heat transfer-
ence from the main pump and 24-hour circulation pump. If the water tem-
perature is higher than 95°F (35°C) and rises two degrees above the set
temperature, a “Summer Logic” condition occurs that deactivates the circu-
lation pump and ozonator (if equipped). This safety feature cannot be
altered! The circulation pump and ozonator will remain off until the water
temperature cools to the set temperature (except between12AM-2AM when
the circulation pumps runs for it’s manditory 2-hour “clean-up” cycle). To
help prevent a “Summer Logic” condition, it may be necessary to reduce fil-
ter cycle and/or circulation pump run times in warm weather.
9.4 Preset Filter Cycles
Your hot tub comes with four 30-minute filter cycles already programmed
in, beginning at 6:00 a.m., noon, 6:00 p.m., and midnight. You can eas-
ily change the start time, or the cycle length for any of these cycles to
suit your individual needs by following the steps in section 10.2, page 28.
9.5 Clean-Up Cycle
The clean-up cycle is once per day in both Standard and Economy mode
at 12:00 PM for two minutes. This is not user programmable. Pump #2
and blower activate for one minute to circulate any water in the plumbing.
After 1 minute they both go off and Pump #1 runs for 1 minute. If the fil-
ter cycle is also set at 12:00 PM, pump #1 will continue to run for the
duration of the filter cycle.
10.0 Programming Instructions
10.1 Adjusting Time of Day
The Sentry control system remembers the time of day even in the event of a
prolonged power outage. However, it may occasionally be necessary to reset
the time of day. For example: if you are not in the Pacific Time Zone you
will want to reset the time for your own time zone. (The system will auto-
matically adjust to and from daylight savings time.) To accomplish this,
press DISPLAY, MODE and DISPLAY within five seconds each. A number
representing the hour will be displayed, followed by AM or PM. The hour
will advance or decrease each time UP or DOWN is pressed within five
seconds. Then, press DISPLAY again to display the minutes. Adjust the
minutes as necessary by pressing UP or DOWN . After 5 seconds, the dis-
play will return to normal.
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