Application - Ecosoft ROBUST MINI Installation And Operation Manuallines

INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS ECOSOFT ROBUST MINI,
ROBUST 1500, ROBUST PRO, ROBUST 3000, ROBUST 3000MAX, ROBUST 4000

1. APPLICATION

Robust reverse osmosis systems are designed for water purification using reverse osmosis
membranes — special semipermeable membranes that allow purifying tap water from all harmful
impurities, including nitrates and viruses (see Figure 1 below).
Tap water under
pressure
RObust is a multistage direct flow filtration system, which operates according to the following
scheme:
• Feed cold water first undergoes pre-filtration (1st pre-filter in the Robust 3000 system or 1st and
2nd pre-filters in other systems) where it is stripped of suspended particles (rust, sand, hemp
strands etc.).
• The pressure booster pump feeds water to the reverse osmosis membranes mounted in parallel
or in series. If the supply of feed water is cut off or the input pressure is lowered below 0.15-0.2
bar, a low-pressure switch is triggered, closes the inlet valve and turns off the pump. Even when
the purified water faucet is opened, the system will not start until the supply of feed water is
restored with sufficient pressure.
• Permeate (purified water) goes to purified water outlet or pressure tank outlet (if installed),
passing through the carbon post-filter (if provided dy the filter design), and the concentrate —
through the flow restrictor is discharged into the drain.
• RObustPro system is equipped special RObustPro replacement filter allows to get water with
a small content of magnesium and calcium, which enhance the extraction of coffee flavor and
aroma components.
High pressure switch installed before the post-filter reads pressure in permeate line and starts the
reverse osmosis system when the pressure drops (due to taking of some water from the pressure
tank or opening purified water faucet). When the system switches on, entry solenoid valve is
opened and booster pump is powered up, which allows feed water into the system. When purified
water faucet is closed, pressure starts to build up, closes high pressure switch turns off the system.
On the Robust system front panel there are two pressure gauges (if provided dy the filter design). One
shows the water pressure after the pre-filters, and the second shows the pressure after the pump
in the membrane unit. The panel also provides information on requirements, recommendations for
resolving possible problems if requirement are not met.
This manual is the intellectual property of Ecosoft. Copying and reprinting is prohibited. © 2024
Molecules of smaller
size, pure water
Figure 1. Reverse osmosis process illustration
Larger molecules
Concentrate
for disposal
Membrane
Water
molecules
4