6
R.O. membrane:
The third and main stage of the filtration is high-production R.O. membrane. It is “semi-perme-
able”, which means that it allows water to pass through but prevents dissolved particles from
passing through. It splits the feed water into two streams: clean water goes to the post-filter
and then onto the heater and cooler. Waste water with rejected particles goes down the drain.
Post-Filter:
Last stage of filtration is an activated carbon post-filter and/or remineralization for fine con-
ditioning and keeping the extra freshness of your water.
Specification
Operating requirements:
■
Minimum supply water pressure: 7.25 psi (0.05 MPa)
■
Maximum supply water pressure: 80 psi (0.55 MPa)
■
Minimum water temperature: 41
o
F (5
o
C)
■
Optimal water temperature: 59–77
o
F (15–25
o
C)
■
Maximum water temperature: 95
o
F (35
o
C) / up to 105
o
F (40.5
o
C) short-term
■
Ambient air temperature: 41–105
o
F (5–40.5
o
C)
■
Water source: tap water supply, chlorinated or non-chlorinated, bacteriologically safe
■
Supply water pH range: 4.0-11.0
■
Supply water turbidity: < 1 NTU
■
Supply water components: Hardness (CaCO
3
) <180 mg/L (<10.5 gpg), Iron <0.1 mg/L,
Manganese <0.05 mg/L, Hydrogen Sulfide 0.00 mg/L
■
Maximum supply water TDS: 1000 ppm
■
Indoor use only.
■
Electrical input: AC 220-240V 4.0A 50/60 Hz
■
Maximum length of the line between the inlet valve and the dispenser
1
: 23 ft (7 m) - 1/4”
tubing; 160 ft (50 m) - 3/8” tubing. Purchase of extra tubing may be required.
Performance:
Performance of the appliance such as filtered water delivery rate, rejection rate, hot and cold
water temperature, etc. is highly dependent on local conditions (inlet water pressure, water
and ambient air temperature, TDS and degree of contamination, etc.) and system use pattern.
Actual performance may vary.
■
Filtered water production rating: 400 gpd (1500 lpd) maximum
■
Filtered water delivery rate, typical: 0.159–0.330 gpm (0.6–1.7 l/min)
■
Membrane rejection rate
2
, typical: 90%
■
Recovery rate (system efficiency
3
), typical: 50%
■
Drain water flow restrictor: 300 cc (ml/min) nominal, up to 450 cc in working mode, open
flow in flush mode.
■
Auto-flush duration: 18±5% s
1
Average maximum length is given. Actual maximum supported length depends on supply water pressure.
2
For all dissolved solids combined as measured by TDS or conductivity meter.
3
Efficiency rating means the percentage of the influent water to the system that is available to the user as
reverse osmosis treated water under operating conditions that approximate typical daily usage.
