A.O. Smith Pro AOW-S400 Owner's Manual page 14

14
Setting the Controller
10
1 On the home screen, press the "MENU" button.
2 On the Main Menu screen, press the button for "Hardness".
3 On the Water Hardness screen, press the "+" button to increase hardness or "-" button to
decrease hardness. Input the compensated hardness calculated on page 5.
4 Press the "SAVE" button to save the value and return to the Main Menu screen.
5 Press the "BACK" button to return to the home screen.
The Main Menu screen has other options if you choose to change the factory default settings.
Depending on the model, not all options will apply. The controller should only display
options available to the model for which it is programmed.
Main Menu
Display Settings:
Units: Toggle between English and Metric
units
Time: Set the current time of day
Regen Time: Set the regeneration time
Regeneration Settings:
Type: Toggle between High Efficiency, High
Capacity, or Automatic
Mode: Toggle between Delayed or Demand
Override: Toggle between 96 Hours or None
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Manual Regeneration:
User can press and hold "REGEN" button
to force an immediate regeneration. The
"NEXT" button that appears on the screen
allows the user to advance the cycle to the
next position.
Factory Reset:
On Main Menu screen there is a button
labeled "RESET". Pressing this button brings
up Restore Defaults screen. Pressing "Yes"
will return controller to factory default
settings.