15INSTALLER SETTINGSSTEP 1I - Press NEXT and ▲ simultaneously for 3 seconds.STEP 2I – Hardness: Set the amount of hardness in grains of hardness ascalcium carbonate per gallon using the ▲ or ▼ buttons. The default is 20 withvalue ranges from 1 to 150 in 1 grain increments. Note: The grains per gallon canbe increased if soluble iron needs to be reduced. This display will show “–nA–”the system is set up for a filter or if „AUTO‟ is not selected in Step 7S. PressNEXT to go to step 3I. Press REGEN to exit Installer Display Settings.STEP 3I – Day Override: When gallon capacity is set to off, sets the number ofdays between regenerations. When gallon capacity is set to AUTO or to anumber, sets the maximum number of days between regenerations. If value setto “oFF” regeneration initiation is based solely on gallons used. If value is set asa number (allowable range from 1 to 28) a regeneration initiation will be called foron that day even if sufficient number of gallons were not used to call for aregeneration. Set Day Override using ▲ or ▼ buttons:• number of days between regeneration (1 to 28); or• “oFF”.See Setting Options Table for more detail on system setup. Press NEXT to go tostep 4I. Press REGEN to return to previous step.STEP 4I – Next Regeneration Time (hour): Set the hour of day for regenerationusing ▲ or ▼ buttons. AM/PM toggles after 12. The default time is 2:00 a.m. Thisdisplay will show “REGEN on 0 GAL” if “on 0” is selected in Step 8S. PressNEXT to go to step 5I. Press REGEN to return to previous step.STEP 5I – Next Regeneration Time (minutes): Set the minutes of day forregeneration using ▲ or ▼ buttons. This display will not be shown if “on 0” isselected in Step 8S. Press NEXT to exit Installer Display Settings. Press REGENto return to previous step.To initiate a manual regeneration immediately, press and hold the “REGEN”button for three seconds. The system will begin to regenerate immediately. Thecontrol valve may be stepped through the various regeneration cycles bypressing the “REGEN” button.