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Programming the Control
CONTROL SETTINGS REQUIRED upon installation
and after an extended power outage.
NOTES:
■ WHEN THE TRANSFORMER IS PLUGGED INTO
THE ELECTRICAL OUTLET, 12:00 PM (flashing),
and an arrow is displayed next to PRESENT TIME
on the faceplate decal. The blue indicator light will
also flash. Program the control as instructed below.
■ If - - - is flashing, use the UP button to set
the correct F or H code as follows: F35 for GXSF35E
or F39 for GXSF39E. If you pass by the correct code
number, use the DOWN button. Then press the
MODE button to accept the correct model.
■ A “beep” sounds while pressing buttons for control
programming. One beep signals a change in the
control display. Repeated beeps mean the control
will not accept a change from the button you have
pressed, and you should select another button.
■ To program the control, you will use the UP ,
DOWN and MODE buttons.
■ Use the MODE button to scroll arrow to desired
control function.
SET PRESENT TIME OF DAY
1. Press the MODE button until
arrow points to PRESENT
TIME.
2. Press UP or DOWN button to set. The UP button
advances the time; the DOWN button moves the time
in reverse.
2. If the present time is between noon and midnight,
be sure PM shows in the display. If the present time
is between midnight and noon, be sure AM shows in
the display.
NOTE: Each press of an UP or DOWN button changes
the time by one minute. Holding the button changes the
time at a rapid rate.
3. When the present time is correct, press MODE to accept.
SET WATER HARDNESS NUMBER
1. Press the MODE button until
arrow points to HARDNESS.
2. Press UP or DOWN button
to set your water hardness number in the display. DOWN
decreases the hardness value. UP increases the hardness
value.
NOTE: Each press of a button changes the display by 1,
between 1 and 25. Above 25, the display changes 5 at a time
(25, 30, 35, etc.). Holding a button in changes the numbers
at a rapid rate.
3. When the display shows your water hardness (in grains
per gallon), press MODE to accept.
NOTE: If there is clear water iron in your water supply,
you will need to increase the hardness setting by 5 for
each 1 ppm of clear water iron in your water supply.
You can get the grains per gallon (gpg) hardness of your
water supply from a water analysis laboratory. If you are
on a municipal supply, call your local water department.
Or call Legend Technical Services, an independent
laboratory, to request a water hardness test kit at
1.800.826.8553, extension 47. If your report shows
hardness in parts per million (ppm) or milligrams per liter
(mg/l), simply divide by 17.1 to get the equivalent number
of grains per gallon.
SET RECHARGE (STARTING) TIME
1. Press the MODE button until
arrow points to RECHARGE
TIME.
NOTE: A flashing 2:00 AM (factory default) should show in
the display. This is a good time for recharge to start (takes
about 2 hours) in most households because water is not
in use. HARD WATER is bypassed to house faucets during
recharge.
If no change is needed, go to step 3. To change the
recharge starting time, follow step 2.
2. Press UP or DOWN button to set the desired
recharge start time. Be sure to observe the AM or PM
as you did when setting the time of day.
NOTE: Each press of a button changes the time by 1 hour.
Holding the buttons in changes the time at a rapid rate.
3. Press the MODE button to accept.
SALT
LEVEL
PM
SALT
LEVEL
SALT
LEVEL
AM