Installation and Operation Guide
MRS-100, MRS-225, MRS-350, MRS-100CC,
MRS-225CC, MRS-350CC, MRS-350BL
Reverse Osmosis Mineral Reduction System For Foodservice Applications
EV3123-42 Rev B SE09
IntroductIon
The Everpure MRS (Mineral Reduction System) is a pre-engineered,
pre-assembled Reverse Osmosis (RO) system designed to provide
high purity water for many applications, such as premium espresso,
coffee and blended beverages, to name a few. It combines a
number of water treatment technologies into one easy to install
package. The system provides superior protection against taste and
odor causing contaminants while removing dirt, particulates and
dissolved solids that can foul or scale equipment.
Initial System Production
Water production depends on supply water pressure and temperature.
See PERFORMANCE section (page 5) for normalized production.
Influent Water characteristics
The following table lists the allowable operating range of various
water properties within which the MRS will function properly.
Total Dissolved Solids (TDS)
0-1500 PPM (0-1500 mg/L)
pH
5-10
Chlorine
1
0-3 PPM (0-3 mg/L)
Chloramines
0-3 PPM (0-3 mg/L)
Turbidity
0-1 NTU
Iron
0-1 PPM (0-1 mg/L)
1
Reverse osmosis membrane filter used in this system will be damaged by chlorine. An
activated carbon filter has been provided with this system to protect the reverse osmosis
membrane from chlorine attack. Influent chlorine should not exceed 3 mg/L.
the complete MrS consists of 5 major components:
Inlet booster pump.
1.
5-Micron Pre-filter (optional).
2.
Granular Activated Carbon Taste & Odor (TO) cartridge.
3.
Reverse Osmosis (RO) membrane cartridge.
4.
Calcium carbonate (CC) re-mineralization cartridge (CC models
5.
only), or BW-4400 Sub-micron filtration cartridge (BL model only).
The optional 5-micron pre-filter removes suspended particles,
which can lead to premature plugging of the TO and/or RO
membrane cartridge. The TO cartridge removes most oxidizers, but
mainly reduces chlorine, preventing damage to the RO cartridge.
The RO cartridge contains a semi-permeable reverse osmosis
membrane. Here, most dissolved impurities are separated from the
water and flushed down the drain. The water that is able to pass
through the membrane, which is very low in dissolved impurities, is
referred to as permeate, RO water, or product water. Depending on
the model, the permeate will do one of the following:
• Systems without calcium carbonate (CC) cartridge - The permeate
will pass through the cartridge head with by-pass plug, exiting to
service and/or enters the optional storage tank.
• Systems with calcium carbonate (CC) cartridge - The permeate will
pass through calcium carbonate cartridge, where re-mineralization
occurs. This cartridge reintroduces a metered amount of minerals
into the RO permeate. After remineralization, the treated water
exits to service and/or enters the optional storage tank.
MRS-350BL Model Only - The permeate will flow into the sub-
micron filtration catridge head. A metered amount of tap water will
mix with this permeate, and this blended water will pass through
the sub-micron filter. Once filtered, the water exits to service and/or
enters the optional storage tank.
•
The optional storage tank stores water that has been produced by
the RO System. This provides a water supply “buffer”, enabling the
system to provide reasonable volumes of product water during high
demand periods.
oPeratIng SPecIfIcatIonS
Dynamic Operating Pressure: 25–80 psi (1.7–5.5 bar)
•
Static Operating Pressure: 100 psi (6.9 bar)
•
Operating Temperature 40–100°F (4.4–37.8°C)
•
Connections
•
Inlet/Outlet: 3/8-inch tube
Concentrate: 1/4-inch tube
Electrical (not field selectable):
•
115 VAC/60Hz (US Nema 5-15P Plug)
230VAC/50Hz (European “Schuko” CEE 7/7 Plug)
240VAC/50Hz (Australian AS 3112 Plug)
Branch Circuit Protection: 15 or 20 AMP Ground Fault
Protected
Pre-Installation checklist
Can the unit be mounted within a reasonable distance of the
1.
water supply and drain facilities?
Is there an un-switched GFIC (ground fault interrupter circuit)
2.
protected receptacle available for powering the system?
Is there adequate clearance and support to install the unit
3.
and permit access for maintenance? The total system weight
will vary based on model and storage tank selected. See
specification table for approximate operating weights.
Does the inlet water supply meet the requirements listed below?
4.
A minimum of 25 PSI pressure on a consistent basis
a.
Less than 1,500 ppm of Total Dissolved Solids (TDS)
b.
Less than 10 GPG of water hardness
c.
pH level between 7.0-9.0
d.
Turbidity less than 1 NTU
e.
EV3123-42 Rev B
Prints Black
Approved 11 SE 09 by Randy Hagen
3123-42b IO Guide MRS - 112108.indd 1
9/11/09 11:15:26 AM
