Variable Refill/Brining Regeneration Cycle (5-Cycles Operation) - Pentair FOLEO 5800 XTR Installer Manual

Installer Manual Foleo - Description

3.1.3. Variable Refill/Brining regeneration cycle (5-cycles operation)

Service — normal use
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.
Brine tank refill — cycle C1
Water is directed to the brine tank, at a rate controlled by the refill controller [BLFC], to create brine
for the next regeneration. Refill duration is calculated by the controller on the basis of real resin
consumption. During brine refill, treated water is available at the valve outlet.
Service — cycle C2
After the refill, the valve comes back in to service position and stays as long as needed for brine
saturation.
Brine draw & slow rinse — cycle C3
The valve directs water through the brine injector and brine is drawn from the brine tank. The brine
is then directed down through the riser tube and up through the resin bed to the drain. The hardness
ions are replaced by sodium ions and are sent to the drain. The resin is regenerated during the brine
cycle. Then the slow rinse phase starts.
Backwash — cycle C4
The flow of water is reversed by the valve and directed down through the riser tube and up through
the resin bed. During the backwash cycle, the bed is expanded and debris is flushed to the drain, while
the media bed is remixed.
Rapid rinse — cycle C5
The valve 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 recompacted.
NOTE

For illustration purpose only. Always verify inlet and outlet marking on the softener.
18 / 112 Ref. MKT-IM-038 / C - 15.11.2019