Millennium MRO-35 - Section II. Specifications; Specifications

4
SECTION II. SPECIFICATIONS
TABLE A – QUALIFIED SYSTEM PERFORMANCE
Because the performance of an R.O. Membrane is highly dependent upon pressure, temperature and TDS, the
following should be used for comparison purposes only.
U.S. Metric
Membrane Production
1
41-53 gpd 155–201 lpd
Membrane TDS Reduction
1
96% minimum 96% minimum
System Production² 14 gpd 53 lpd
Recovery Rating
2
38% 38%
Efciency Rating
2
22% 22%
TDS Reduction² 90%+ typical 90%+ typical
Drain (reject water) Flow 3–5 x product ow 3–5 x product ow
Empty Storage Tank Precharge 5–7 psig air 35–48 kPa air
Storage Tank Capacity
2
1.8 gallons 6.8 liters
1
Industry standards measure R.O. Membranes performance with no backpressure on the product water, at 65 psig (448kPa) and 77°F
(25°C). Further conditions on the above are 250 ppm TDS. Production rate and TDS reduction gures are for a new Membrane that
has been rinsed for 24 hours. The production rate of a new Membrane can decrease by 10% per year or more, depending upon the
scaling and fouling tendencies of the Feed Water.
2
Measured at 50 psig, 77°±2° F, 750±40 mg/l TDS per section 6 of NSF/ANSI Standard 58. Recovery rating means the percentage
of the inuent water to the membrane portion of the system that is available to the user as reverse osmosis treated water when
the system is operated without a storage tank or when the storage tank is bypassed. Efciency rating means the percentage
of the inuent water to the system that is available to the user as reverse osmosis treated water under operating conditions that
approximate typical daily usage. This reverse osmosis system contains a replaceable component critical to the efciency of
the system. Replacement of the reverse osmosis component should be with one of identical specications, as dened by the
manufacturer, to assure the same efciency and contaminant reduction performance.
TABLE B – RECOMMENDED OPERATING LIMITS FOR FEED WATER
Specications T.F.C. Membrane
Water Pressure 40–100 psig (280–690 kPa)
TDS 2000 ppm (also mg/l) max.
Temperature 40–100°F (4–38°C)
pH 4–11 (optimum rejection at pH 7.0 - 7.5)
Hardness Less than 10 gpg (170 mg/l) or soften
Iron Less than 0.1 ppm (also mg/l)
Manganese Less than 0.05 ppm (also mg/l)
Hydrogen Sulde None
Chlorine See note
Bacteria Must be potable**
NOTE: Chlorine will damage a T.F.C. Membrane. The Activated Carbon Prelter has been designed to reduce chlorine from the
incoming water. Change lter every 6 to 12 months, more often if the water contains more than 1 ppm chlorine.
**DO NOT USE WITH WATER THAT IS MICROBIOLOGICALLY UNSAFE OR OF UNKNOWN QUALITY, WITHOUT ADEQUATE
DISINFECTION BEFORE OR AFTER THE SYSTEM.