Aerus Origins WC400, Operation Manual

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14
System Operation
Treated Water (Downflow)
Untreated water is conditioned as it flows through the resin bed
and up the riser.
If the model selected at first start-up was 268r, this is a system
that will refill the salt tank at the start of a regeneration cycle.
When a regeneration cycle begins, the salt tank is filled and brine
is allowed to develop before Cycle 1 starts.
Backwash (Upflow) – Cycle C1
Flow is reversed by the control valve, directed down the riser, up
through the resin bed and sent to drain. The bed is expanded and
debris is flushed to the drain.
Regenerant Draw (Downflow) – Cycle C2*
Water passes through the injector and regenerant is drawn from
the regenerant tank. The regenerant is directed to the resin bed.
The hardness ions are displaced by sodium ions. Regenerant
draw is completed when the air check closes.
Slow Rinse (Downflow) – Cycle C3*
Water flow moves the regenerant through the resin at a specific
rate and rinses to the drain. The resin is regenerated.
Repressurization – Cycle C4
Pressure is balanced in the valve before continuing the
regeneration.
Fast Rinse (Downflow) – Cycle C5
Water passes through the resin bed and up through the riser
to drain. All remaining regenerant residual is rinsed from the
resin bed.
2nd Backwash (Upflow) – Cycle C6
Flow is identical to C1 Backwash. The resin is reclassified.
2nd Rinse (Downflow) – Cycle C7
Flow is identical to C5 Fast Rinse. The resin bed is rinsed
to quality.
Regenerant Refill Last – Cycle C8
Refill last only occurs if the model selected at first power up
was 268.
Water is directed to the regenerant tank to create regenerant
for the next regeneration.
Cycle Water Flows
Backwash Fast Rinse Service
Regenerant Draw/
Slow Rinse
From
Regenerant Tank
Repressurize
To Regenerant
Tank
Refill
*The camshaft does not change position between C2 and C3 cycles. C2 is only momentarily displayed.