Watts N2050A - Manual (Page 7)

7
Hardness Setting
Move the jumper to the set of pins next to the word
HARDNESS (Figure 8). 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 9). 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 (8).
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.
4. Depress the black TIME SET button. The numbers
will roll from “0” to “15.” Release the switch at the
desired number of days for the calendar override.
For example, releasing the switch at “10” would
program a 10-day calendar override.
5. Disconnect power.
6. Place jumper back on TIME and reconnect power.
7. The calendar override program is maintained
during power outages by the NOVRAM circuitry.
8. To remove the calendar override, follow the same
steps above and program back to “0.”
Common Features
When using the Performa valve with the 440i or 460i
controls, there are several features and procedures that
are unique to the 400 series controls. They are as
follows:
Salt Dial Adjustment
These models may be adjusted to produce maximum
to minimum conditioning capacities by setting the salt
dial, which controls the amount of salt used per
regeneration. When desired, the minimum setting may
be used on installations if the frequency of regeneration
is increased to compensate for lower regenerated
conditioning capacity. The installing dealer will set the
unit for proper salt usage. Further adjustments are
needed only if the hardness of the water supply
changes or if water use changes dramatically. Capacity
will need to be adjusted accordingly.
To adjust salt dosage, insert a small screwdriver into
the white indicator knob and move pointer to proper
salt setting (Figure 10).
Note: To convert the salt settings from English to
metric, divide by 2.2 (e.g., 12 pounds
÷ 2.2 = 5.5 kg of
salt).
Figure 10
Parts per Million
Grains per Gallon
17.1
=
Figure 7 Figure 8 Figure 9
Indicator Knob