General Service Hints For Meter Control; Water Conditioner Flow Diagrams - Pentair FLECK 3900 Service Manual

GENERAL SERVICE HINTS FOR METER
CONTROL
Problem: Softener delivers hard water
Reason: Reserve capacity has been exceeded.
Correction: Check salt dosage requirements and reset
program wheel to provide additional reserve.
Reason: Program wheel is not rotating with meter output.
Correction: Pull cable out of meter cover and rotate manually.
Program wheel must move without binding and clutch must
give positive clicks when program wheel strikes regeneration
stop. If it does not, replace timer.
Reason: Meter is not measuring flow.
Correction: Check meter with meter checker.
28 • FLECK
3900 Service Manual
®

WATER CONDITIONER FLOW DIAGRAMS

1 Service Position
Service Outlet
Inlet
Inlet
Hard water enters at valve inlet and flows down thru mineral
to the bottom distributor. Conditioned water flows up thru the
distributor tube, around the piston and out the outlet.
2 Backwash Position
No Hard Water Bypass
Service Outlet
Hard water enters at valve inlet – flows thru service adapter
piston for by-pass, and up thru coupling to regeneration valve
inlet. Flow continues thru the regeneration valve piston – down
the distributor tube – thru the bottom distributor and up thru
the mineral – around the piston and out the drain. If optional no
hard water by-pass piston is used, water flow to service outlet
is prevented by an extension on the service outlet until the end
of the rapid rinse cycle or brine tank refill cycle, depending on
options chosen.
Drain
Regeneration
Valve
Service
Valve
Drain
Inlet