OPER
ATING MANUAL FOR SELECT ANALYST
Issue: A, part number R041118
37
10.3 Process flow
(to be read in conjunction with flow diagram)
All external hydraulic and electrical connections are positioned at the
rear of the unit, in order to protect them from accidental damage.
On entering the Select Analyst an internal feed water strainer removes
any large debris remaining in the feed water supply. When operated,
an inlet solenoid opens and allows water to pass to the reverse
osmosis boost pump (option).
The boost pump increases the feed water pressure to a level to enable
the reverse osmosis (RO) membranes to operate efficiently.
Prior to entering the RO modules the water is passed through a pre-
treatment pack to remove chlorine from the feed water to protect the
RO membranes.
The Pre-filtered, water enters the reverse osmosis module/s. Purified
water passes through the membrane and is termed; the permeate (85-
95% of salts removed). The water containing the rejected salts passes
across the membrane and out of the RO module to drain and is termed,
the concentrate.
The concentrate flow rate is controlled by a fixed orifice restrictor
located in the drain line.
The, permeate is further purified by a Puripac media cartridge
containing mixed ion-exchange resin and activated carbon. The
deionised water then feeds directly into the integral 20 litre storage
tank. Water can be dispensed from this tank via the front mounted bib
tap.
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