First Sales FBW10, Installation Instructions Manual

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9
How to Change the Length of Backwash Cycles:
All cycles have been factory set and should not need adjustment. If local conditions require different
cycle lengths, however, the following procedures should be followed.
1. Grasp top left corner of timer assembly and pull to swing timer open and expose the program
wheel.
2. Remove program wheel from timer by squeezing retaining lugs in center of program wheel.
Maneuver program wheel away from micro switch arms and timer assembly.
3. BACKWASH cycle may be lengthened by adding pins to 1st set of pins on program wheel. Each
pin will equal 2 minutes of backwash time. The remaining two sets of pins MUST also be
shifted clockwise to ensure 2 holes separate each cycle.
4. RAPID RINSE cycle may be lengthened by adding pins to the 2nd set of pins on the program
wheel. Each pin represents 2 minutes of rapid rinse time. The last set of pins MUST also be
shifted clockwise to ensure 2 holes separate each cycle.
5. Reinstall the program wheel on the retaining lugs by maneuvering past the micro switch arms.
6. Close and latch the timer assembly. Ensure that the retainer snaps into the hole in the back plate
and all electrical wiring is ABOVE the timer post.
FIGURE 6: Back of Timer Assembly
Timer Operation (cont.)