Operator`s manual

P/N 3027435 Rev. C
Technical Data
28
WRO 300
Water supply
Input Min. 3.0 l/min required
Feed Water Pressure During operation — there is an inlet flow
of water into the WRO unit.
0.15 to 0.3 MPa (22 to 45 PSI)
Maximum design pressure:
0.8 MPa (115 PSI)
If the feed water pressure exceeds 0.3
MPa (45 PSI), a flow regulator, order
number WTW522001001, should be
installed.
Feed Water Tempera-
ture
+5 to +30 °C
Feed Water Quality Potable water should be used.
Particle filtration shall be used (<5 m)
Carbon filtration shall be used if water is
chlorinated, see limits below.
Membrane life expectancy might be
reduced if the unit is operated outside of
the following limits. For example, addi-
tional maintenance such as cleaning to
remove scale from hard water buildup
may be required if the hardness level is
exceeded.
Hardness <1 °dH (20 ppm as CaCO
3
)
1 grain/gallon
Iron <0.1 mg/l
Manganese <0.1 mg/l
Turbidity <1 JTU
Total dissolved salts
(TDS)
<1500 mg/l
Fouling index (silt den-
sity index)
<5
Chlorine (total) <0.1 mg/l
Drain
Drain output flow dur-
ing RUN mode
1.2 ±0.1 l/min
Height difference
between the drain
hose outlet and the
WRO 300 drain outlet.
Maximum 1.0 m
Drain (length of hose) Maximum 5 m
Drain flow capacity Minimum 3.0 l/min required
Values