SENTRY II 972SM Series, Руководство по эксплуатации и обслуживанию

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8
Introduction
hub and lateral distribution system, up the distributor pipe and exits through the drain
port of the control valve and out to drain. The level of water in the brine tank should be
drawn down from the preset level. The brine float air-check valve shuts off air when
the preset drawdown is reached. Raw water continues to the drain through the main
control valve slow rinsing the resin for the remainder of the cycle. Brine and slow
rinse sequence lasts approximately 60 minutes.
D. SECOND BACKWASH
Water flow is the same as the first backwash. This step in the regeneration process
helps to remove iron that was released from the resin during the Brine cycle. The
second Backwash sequence lasts approximately 6 minutes.
E. FAST RINSE
Raw water passes through the inlet of the control valve and down-flow through the
resin bed, through the lower hub and lateral distribution system, up the distributor pipe
and exits through the drain port of the control valve and out to drain. This sequence
removes all remaining brine from the resin bed. The Fast Rinse sequence lasts
approximately 10 min.
F. BRINE REFILL
When the regeneration cycle is finished, fresh water flows through the brine line and
into the brine tank refilling it to the preset level. The brine valve float will control water
makeup level.
A WORD OF CAUTION -- DON'T ARBITRARILY MAKE CHANGES, IF YOU WISH
TO MAINTAIN EFFICIENT REGENERATIONS.