Pentair FOLEO 5800 XTR Installer Manual page 16

Installer Manual Foleo - Description
Should the softener be subject to 24/24h water production, the optional installation of the Pentair
fast brine valve is required so that this pause cycle duration can be reduced to 3 minutes. Contact your
supplier for more information.
As an example, assuming the XTR has calculated a variable reserve to 20% of the initial full capacity
based on registered water consumptions, then the XTR will calculate a refill time so that only 80% of
the total theoretical brine quantity is produced, saving therefore 20% salt for this regeneration.
This variable refill function, combined with the upflow regeneration mode of Foleo's series where
brine is injected from bottom to top in a packed resin bed at low velocity is ensuring the best optimized
performances and savings in water softeners segment.
NOTE

Any manually started regeneration will initiate a regeneration with 100% of the theoretical
brine quantity to produce regardless from the water usage for the current service cycle.
Should a controller initiated regeneration (including remote signal started regenerations
and days override regeneration) start while less than 10% of the capacity is used, in any case
the calculated refill time will correspond to a minimum of 10% of the total theoretical brine
quantity.
*Compared to a standard downflow softener with optimized programming and configuration.
16 / 112 Ref. MKT-IM-038 / C - 15.11.2019
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