Pentair FLECK 3150 NXT, Installer Manual

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Installer manual Fleck 3150 NXT/NXT2 - Maintenance
Ref. MKT-IM-010 / C - 18.10.2019 131 / 182
f) If pressure gauges are installed before and after softening/filtering system, verify
and record static and dynamic pressure, reporting pressure drop. Verify that inlet
pressure respects valve and softening/filtering system limits. Verify that pressure
drop stay stable year on year, adapt backwash duration if required.
g) If pressure gauges are not present, but suitable points exist, install temporary
pressure gauge(s) to perform point f .
9.1.3 Regeneration test
9.1.3.1 Valve used for softening
a) Check condition of brine tank and any associated equipment.
b) Check salt level in brine tank.
c) Initiate regeneration test.
ð Check brine draw during brine draw stage.
ð Check brine tank refill.
ð
Check operation of safety brine valve, where fitted.
ð Check for brine draw off levels.
ð Check for resin loss at the drain during regeneration.
ð Where fitted, check for satisfactory operation of solenoid, i.e. outlet shut off
during regeneration and/or brine line shut off valve(s).
d) Test and record Total Hardness of outlet water from softener vessel(s).
9.1.3.2 Valve used for filtration
a) Initiate manual regeneration and observe flow to drain.
b) Make sure flow rate correspond to DLFC configuration.
c) Check for media loss at the drain during backwash.
d) Check to see if water runs clear at the end of the backwash cycle.
e) Observe flow fast rinse cycle and measure pressure drop thought the filter
system. Pressure drop after fast rinse should return equal or very close to
pressure drop recorded after system start-up.
f) Where fitted, check for satisfactory operation of solenoid valve(s) i.e. outlet shut off
during regeneration.