GE Autorol 255 Valve / 400 Series - Manual (Page 15)

15
Hardness Setting
Move the jumper to the set of pins next to the word HARDNESS (Figure 14). Press the
black TIME SET button until the hardness of the incoming water supply is displayed.
The hardness range is from 1 to 99 grains per gallon.
To change water hardness stated in parts per million (PPM) to grains per gallon (GPG)
use this formula:
Capacity Setting
Move the jumper to the set of pins next to the word CAPACITY (Figure 15). Press the
black TIME SET button until the correct capacity value is displayed. The capacity
range is 1 to 99 kilograins. Refer to the Suggested Salt Dial Settings table.
Return the jumper to the top set of pins next to the word TIME and replace the access
door. The jumper must NOT be left on any pins other than the top pair next to the
word TIME. Otherwise, the unit may show a blank display.
Note: A spare jumper is located on the bottom set of pins.
In the event that the hardness or capacity setting must be changed, simply follow the
appropriate steps described above.
Calendar Override Setting
1. Disconnect power.
2. Place jumper on Pin A and reconnect power.
3. Move jumper to Pin B. A zero will appear, indicating zero days of calendar override.
All 460i controllers are preprogrammed in this manner at the manufacturer.
Parts per Million
Grains per Gallon
17.1
=
Figure 13 Figure 14 Figure 15