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Caution: Regardless of retractable pool cover position, when the Boost feature is
activated the unit will increase chlorine production to 100% for 24 or 72 hours based on
the Boost time selected.
To exit Boost or Super Boost mode and revert to normal operation:
Allow the Boost cycle to expire, or
Press BOOST at any time to manually deactivate Boost.
7.3.3
Chlorine Mode
The Digital Nano/Nano+ will automatically display informative messages about the condition of
the Digital Nano/Nano+ (Chlorine output %, water temperature, warning messages, etc.), and
responds to manual adjustment of chlorine % setting (as described below). The Digital
Nano/Nano+ will revert to the normal display if there is no activity on the keypad for thirteen (13)
or more seconds.
7.3.4
Chlorine % Adjustment Procedure
1) Balance water chemistry according to necessary water chemistry parameters. See
” starting on page 48. For new startups, if free chlorine level as tested is not
at least 1 ppm (mg/L), add liquid chlorine to ensure 1 to 3 ppm (mg/L) free chlorine reading.
2) Add the proper amount of salt as indicated by the Digital Nano/Nano+ (or as described on
page 52), and run the circulation pump continuously for 24 hours allowing the salt to be fully
mixed and dissolved into the pool. If the salt level is too low, the Digital Nano/Nano+ will
provide a warning, and will not generate chlorine until the minimum salt level has been
reached.
3) Use the UP and DOWN arrow buttons to set the chlorine % to 50%, and then allow the pool
to operate normally. If the pool cover is closed, adjust chlorine to 10% rather than 50%.
For the first two weeks, test the water chemistry parameters every 3-4 days. Adjust chemicals
as needed to maintain correct water balance.
For the Free Chlorine adjustment, use the following table for fine-tuning the controller output
percentage (%):
Table 4
CHLORINE %
CURRENTLY
SET TO:
IF FREE CHLORINE IS LOWER THAN
IDEAL RANGE
…
IF FREE CHLORINE IS HIGHER THAN
IDEAL RANGE
…
0% - 25%
The chlorine % output needs to be
increased.
The chlorine % setting is too high.
Use the UP arrow button to increase
the Chlorine Output %. Press
SELECT to lock in change.
Use the DOWN arrow button to lower
output. Press SELECT to lock in change.
The free chlorine will need to be tested
frequently and the chlorine output % will
need to be adjusted as needed to attain
desired level.
25% - 100%
The chlorine % output needs to be
increased.
The chlorine % output needs to be
decreased.
Use the UP arrow button to increase
the chlorine output %. Press SELECT
to lock in change.
Use the DOWN arrow button to decrease
the chlorine output %. Press SELECT to
lock in change.
After the optimal output percentage (%) has been determined, this setting will not normally
require further adjustment. Select a Boost cycle to compensate for increased bather usage or
heavy rainfalls (which can both quickly consume chlorine).
