Watts Autotrol Magnum (CV+ Series) - Manual (Page 54)

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7.2.1 Parallel Control Set-Up
Initial Setup
• It is advantageous to perform all control
programming prior to start up of the entire water
treatment system.
• Open the system manual bypass valve and close
all inlet and outlet valves.
• Mount all 962 controls on the valves. All controls
must indicate that they are in the REGENERATION
COMPLETE position before inserting the camshaft.
• Connect the 12VAC power supply to each control.
• Connect the interconnect cable provided with the
system to the factory installed 4 pin connector on
each control. Also connect the optional battery
back-up if provided.
• Program each 962 control in the system. See Table
IIA and Special Programming below for
programming parameters. On initial power-up, the
LED display will show an ERR4 message which
indicates that one or more of the programming
parameters are not set or is out of the allowable
range. Enter and exit the programming mode by
depressing the UP [
↑ ] and DOWN [ ↓ ] buttons for
3 seconds. The programming mode can also be
exited by not pressing a button for 30 seconds.
Special Programming
• Set P5-Capacity - below actual capacity - a reserve
sufficient to provide two hours of service flow is
recommended. This provides soft water when
regeneration is delayed because another unit is
already in regeneration.
• Set P15-Reserve Type - “3” - fixed reserve with
immediate regeneration. This causes the control to
do an immediate regeneration when the gallons
remaining reaches zero.
• Set P16-Fixed Reserve - “0” - zero reserve. This
prevents the control from initiating a regeneration
at the programmed time, P2.
• Set all other parameters, 1 through 20, except
those identified above, as you would a standard
962 single control.
Additional Conditions
• Each 962 control requires its own 12-volt
transformer. They should all be plugged into the
same power circuit. Power loss to only one
transformer within the system may cause the
system to malfunction.
• Each control valve should be equipped with a no
hard-water bypass cartridge.
• The flow through each control valve should be
balanced.
• The programming for all controls should be the
same.
• Three brine tanks are recommended on triple
parallel systems. This will provide adequate salt
brine for all regenerations and eliminates concern
for lack of brine strength when utilizing a single
brine tank, should back to back regenerations take
place.