Installer manual Autotrol Magnum 293 - 298 Logix 742-762 - Description
26 / 110 Ref. MKT-IM-012 / D - 03.02.2022
3.7 Systems regeneration cycle
3.7.1 298 Valves (5 - Cycle softener)
Service (downflow) — cycle C0
Untreated water is directed down through the resin bed and up through the riser tube. The
hardness ions attach themselves to the resin and are removed from the raw water being
exchanged on the resin beads against sodium ions. The water is conditioned as it passes through
the resin bed.
Backwash (upflow) — cycle C1
The flow of water is reversed by the valve and directed down the riser tube and up through the
resin bed. During the backwash cycle, the bed is expanded and debris are flushed to the drain,
while the media bed is remixed.
Brine (downflow) — cycle C2
The controller directs water through the brine injector and brine is drawn from the brine tank. The
brine is then directed down through the resin bed and up through the riser tube to the drain. The
hardness ions are displaced by sodium ions and are sent to the drain. The resin is regenerated
during the brine cycle. When the air check valve closes brine drawing finishes, and then the slow
rinse phase starts.
Slow rinse (downflow) — cycle C3
Fast rinse (downflow) — cycle C5
The controller value directs water down through the resin bed and up through the riser tube to the
drain. Any residual brine is rinsed from the resin bed, while the media bed is re-compacted.
Brine refill — cycle C8
Water is directed to the brine tank at a rate controlled by the refill controller, to create brine for
the next regeneration. During brine refill, treated water is already available at the valve outlet.
Info
For illustration purpose only. Always verify inlet and outlet marking on the valve.
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