Pentair FLECK PROFLOSXT DOWNFLOW, Service Manual

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28 • FLECK
Model ProFloSXT Downflow Service Manual
Seal and Spacer Replacement
To replace seals and spacers, refer to Replacing Brine Valve,
Injectors and Screen, steps 1–3.
1. Remove the control valve back cover. Disconnect the meter
cable from the meter assembly.
2. Remove screw and washer at drive yoke. Remove timer
mounting screws. The entire timer assembly will now lift
off easily. Remove end plug retainer plate.
3. Pull upward on end of piston rod yoke until assembly is out
of valve. Remove and replace seals and spacers.
4. Take piston assembly and push piston into valve by
means of the end plug. Twist yoke carefully in a clockwise
direction to properly align it with drive gear. Replace end
plug retainer plate.
5. Place timer on top of valve. Be sure drive pin on main gear
engages slot in drive yoke.
6. Replace timer mounting screws. Replace screw and
washer at drive yoke.
7. Return bypass or inlet valving to normal In Service position.
Water pressure automatically builds in the conditioner.
NOTE:
Be sure to shut off any bypass line.
8. Replace the control valve back cover.
9. Follow Injectors/Screen Replacement, steps 9–12.
Meter Replacement
To replace meter refer to Replacing Brine Valve, Injectors and
Screen, steps 1–3.
1. Remove two screws and clips at bypass valve or yoke. Pull
resin tank away from plumbing connections.
2. Pull meter module out of control valve.
3. Remove the meter cable from the meter module.
4. Apply silicone lubricant to four new o-rings and assemble
to four ports on new meter module.
5. Install signal wire into new meter module.
6. Assemble meter to control valve. Note, meter portion of
module must be assembled at valve outlet.
7. Push resin tank back to the plumbing connections and
engage meter ports with bypass valve or yoke.
8. Attach two clips and screws at bypass valve or yoke. Be
sure clip legs are firmly engaged with lugs.
9. Return bypass or inlet valving to normal In Service position.
Water pressure automatically builds in the conditioner.
NOTE:
Be sure to shut off any bypass line.
10. Check for leaks at all seal areas.
11. Follow Injectors/Screen Replacement, steps 9–12.
SERVICE INSTRUCTIONS CONTINUED