Service Tech Information

WATER FLOW THROUGH THE SOFTENER VALVE

SERVICE CYCLE

SERVICE CYCLE

Hard water enters the valve inlet port. Internal valve porting routes the water down and out the top distributor, into the resin tank. Hard water is softened as it passes through the resin bed, then enters the bottom distributor. Soft water flows back into the valve and out the valve outlet, to the house soft water pipes.

To Valve Inlet (Soft Water)

Bottom

Distributor

From Valve Inlet

(Hard Water)

Top Distributor

Resin Tank

Position

Switch

FIG. 69

FILL CYCLE

To begin a regeneration, the electronic timer ener- gizes the circuit to the valve motor. The valve motor rotates the rotor and disc and the valve cam until the position switch lever drops, to open the motor circuit and position the valve in FILL. As the rotor and disc rotates, the port opens for SOFT water fin through the venturi. Fill flow continues to the brine valve, and into the salt storage tank. Soft water is still available to the house lines.in.

position switch

fill flow

plug

fill water

(soft)

To Valve Outlet

(Soft Water)

bottom

distributor

FILL CYCLE

valve cam

rotor & disc

from Valve Inlet

(hard water)

Top Distributor

Resin Tank

Position

Switch

FIG. 70

BRINING AND BRINE RINSE CYCLE

BRINING AND BRINE RINSE CYCLES

After fill, timer/switch action allows the motor to turn the rotor and disc into BRINING position. Water flow is directed to the nozzle. Suction, creat- ed by the nozzle and venturi, draws brine from the salt storage tank and injects it into the resin bed via the bottom distributor. Flow continues out the top distributor and to the drain. Hard water is avail- able at the valve outlet.

When the brine valve closes to end brine draw, water flow continues in the same directions to slowly RINSE brine from the resin bed and to the drain.

Venturi

Nozzle

Brine from Salt

Storage Tank

Bypass Hard

Water To

Valve Outlet

Drain

from valve inlet

(Hard Water)

Position

Switch

FIG. 71

Questions? Call The Kenmore Water Line 1-800-426-9345

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Kenmore 420 Series warranty Water Flow Through the Softener Valve Service Cycle, Fill Cycle, Brining and Brine Rinse Cycle

420 Series specifications

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