GE OSMONICS MILLENIUMTM REVERSE OSMOSIS UNIT - Manual (Page 17)

M Millenium™ RO System by GE Osmonics
14693e – 31 Mar 03 1 - 11 General Information
1.9 Optional Equipment
GE Osmonics offers a number of optional items to adapt the equipment to meet specific
needs. Options are available to improve portability, and to improve the quality of the
feedwater to the RO. Frequently requested options are briefly described in the following
paragraphs. If more information is needed, or if other options are desired, please consult
the factory.
Pretreatment Cart holds the Millenium™ RO and feedwater treatment equipment. The
cart has a bracket that provides for the attachment of prefilter cartridge housings. The
cart will hold any combination of two or three of the following tank sizes, .25 c.f., .47
c.f., or .60 c.f..
Carbon Filter Tanks remove chlorine/chloramine from the feed water, preventing
damage to the RO membrane and injury to patients. The filter incorporates a bed of
granular activated carbon. Three sizes of carbon tanks come in semi-automatic control
valve and exchange head styles.
WARNING:
Carbon is not regenerated and must be replaced when exhausted.
WARNING:
A suitable carbon filter should always be present as pretreatment for the RO unit in
order to prevent chlorine/chloramine damage to the thin film RO membrane and
harm to the patient. Osmonics strongly recommends the use of two carbon tanks,
used in a series configuration.
Softeners remove calcium, magnesium, and other scale producing contaminants from the
feed water. Their removal prevents the build-up of scale on the membrane surface. A
control valve drives the regeneration of the softener, and will remove the hardness ions
with a brine solution and rinse the ion exchange bed afterwards. The control valve is
normally governed by a semi-automatic time clock. There are three sizes of softener
tanks available.
Dealkalizers are used to lower the pH of alkaline feed water. Water with pH levels
above 8.5 with chloramines present can reduce the performance of the carbon filters and
thin-film membranes. A control valve drives the regeneration rinsing of the dealkalizer.
The control valve is normally governed by a semi-automatic time clock. There are three
sizes of dealkalizer tanks available.