7. Feed Water Hardness (Display Code H)
Press the Extra Cycle button. Use this display to set the feed water hardness. Enter the feed water hardness in grains per unit
volume for softener systems, or
1 for filter systems. This option setting is identified by “H” in the upper left hand corner of the
screen. The feed water hardness parameter is only available if the control type has been set to one of the metered options. Use
the Up and Down buttons to adjust the value as needed.
Range: 1-199 hardness
The hardness level should be set 5 GPG above the actual water feed hardness. The
hardness level from the original feed water test will either be expressed in GPG (grains per
gallon) or ppm/mg/L (parts per million/milligrams per liter). If the reading is in ppm/mg/L,
then divide that value by 17.1 to get GPG. This system only allows hardness inputs in GPG.
8. Reserve Selection (Display Code RS)
Press the Extra Cycle button. Use this display to set the Safety Factor. Use this display to select the type of reserve to be used in
your system. This setting is identified by “RS” in the upper left-hand corner of the screen. The reserve selection parameter is only
available if the control type has been set to one of the metered options. There are two possible settings.
SF
Safety Factor
RC
Fixed Reserve Capacity
9.
Safety Factor (Display Code SF)
Press the Extra Cycle button. Use this display to set the Safety Factor. This setting specifies what percentage of the system
capacity will be held as a reserve. Since this value is expressed as a percentage, any change to the unit capacity or feed water
hardness that changes the calculated system capacity will result in a corresponding change to the reserve volume. This option
setting is identified by “SF” in the upper left hand corner of the screen. Use the Up and Down buttons to adjust the value from 0 to
50% as needed.
Add 10% for each member in the home up to 50%.
Range: 0-50%
