Page 20
7.3 BASIC OPERATIONAL PROGRAMMING
7.3.1
Adjusting the Chlorine Output %
Typically, once the initial setting is established, very little adjustment is needed. The chlorine %
setting refers to the amount of time the cell is energized within a 15 minute cycle. The system
cycles on-and-
off, as indicated on the display's lower right display and “
On
,” when generating
chlorine. Higher settings will generate more chlorine.
1) Press the UP/DOWN (
or
) arrow buttons to enter the chlorine adjustment mode.
If the optional 863A Expansion Board has been installed along with the Pool Cover
Switch, two Purifier % numbers will be displayed. The left one is the value when the
pool cover is open and the right is when the cover is closed.
2) Use the UP/DOWN (
or
) arrow buttons to adjust the Purifier /Chlorine Output
percentage to the desired output: from 0% (off) to 100 % (maximum output when the
pool cover is open) and 20% when the cover is closed for models with the optional
863A Expansion Board; then press SELECT to save the new output value and default
back to the normal display. At startup of a new system, the standard output setting
starting point is 50%.
50% setting = 50% of 15 minutes or 7.5 minutes ON and 7.5 minutes OFF.
25% setting = 3.75 min ON, 11.25 min OFF
Once the percentage is set, the unit will implement the temperature compensation algorithm
based on current water temperature.
Refer to
section 7.3.4 “Chlorine % Adjustment Procedure” on page 21 for more information.
7.3.2
Boost or Super Boost
The Boost feature is used to increase the chlorine % from its normal setting to 100% for a
cumulative 24 hour or 72 hour period. When the Boost period expires or is manually terminated,
the chlorine % returns to its previous setting and normal operation.
Boost chlorine output to 100% for 24 hours: From the normal operation mode, press
and release the BOOST button. The display will flash: "
Boost 24 hour on
", then
“
Boost hh
” (with the “hh” actually being the displayed hours remaining in the boost
period).
Boost chlorine output to 100% for 72 hours: From normal operation mode, press and
hold the BOOST button until: “
Boost 72 hour on
” is displayed; then release the
BOOST button. Display will show: “
Boost
” for approximately 8 seconds, after that:
“
Boost 72 hour on
” will display; then, “
Boost hh
” (with the “hh” actually being the
displayed hours remaining in Boost period).
If an external time clock or controller turns off power to the Digital Nano/Nano+ while
Boost is active, the Boost timer is stored in memory and the Boost time countdown will
resume when power is reapplied to the unit.
If water flow is stopped during a Boost cycle, chlorine generation will stop while there is
no flow but the Boost timer will continue to count down as long as the Digital
Nano/Nano+ has power.
%% When the cover is open
% When the cover is closed
