User guide

HOW TO SET THE BACKWASH CYCLE PROGRAM:
The backwash cycle program on your fi lter has been factory preset. However,
portions of the cycle or program may be lengthened or shortened in time to suit
local conditions.
To expose cycle program wheel, grasp timer in upper left-hand corner and pull,
releasing snap retainer and swing timer to the right.
To change the backwash cycle program, the program wheel must be removed.
Grasp program wheel and squeeze protruding lugs towards center, lift program
wheel off timer. (Switch arms may require movement to facilitate removal.)
HOW TO CHANGE THE LENGTH OF
THE BACKWASH TIME:
The program wheel as shown in the drawing is in the service position. As you
look at the numbered side of the program wheel, the group of pins starting at
zero determines the length of time that your unit will backwash.
FOR EXAMPLE: If there are three pins in this section, the time of backwash will
be six minutes (2 min. per pin). To change the length of backwash time, add or
remove pins as required. The number of pins times two equals the backwash
time in minutes.
HOW TO CHANGE THE LENGTH
OF RAPID RINSE TIME:
The second group of pins on the program wheel determines the length of time
that your fi lter will rapid rinse (2 min. per pin.)
To change the length of rapid rinse, add or remove pins at the higher numbered
end of this cycle as required (See note below). The number of pins times two
equals the rapid rinse time in minutes.
The backwash cycle is complete when the outer micro-switch drops off the last
pin in the rapid rinse group of pins. The program wheel, however, will continue to rotate until the inner micro-switch drops into the notch on the program
wheel.
IMPORTANT NOTE
IMPORTANT NOTE
There must always be two empty holes between the backwash & rapid rinse cycles for proper cycle staging.
Return program wheel to timer and return timer to closed position engaging snap retainer in back plate. Make certain all electrical wires locate above
snap retainer post.
HOW TO MANUALLY CYCLE PROGRAM:
Manually cycling control is useful when it is desirous to check control functions. Slowly rotate programming wheel counter clockwise until valve drive
motor engages. Release program wheel until motor stops. Control will be in backwash cycle. Continue rotating wheel repeating above procedure and
motor will drive piston to the second (intermediate) position. Repeating procedure will cause motor to drive piston to rapid rinse position. Control may be
returned to service by rotating program wheel to home position (micro-switch lever will drop into notch on program wheel).
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