Pentair EZ-RO 200/2G-BL Original operating instructions

EZ-RO SYSTEMS
INSTALLATION & OPERATION GUIDE
For Reverse Osmosis Systems
with Blending & Hydropneumatic Tanks
foodservice.pentair.com

2 | PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE FOODSERVICE.PENTAIR.COM
SAFETY INSTRUCTIONS
NOTES
• The appliance is only to be installed in locations
where its use and maintenance are restricted to
trained personnel.
• Children should be supervised to ensure that they do
not play with the appliance.
• Cleaning and user maintenance shall not be made by
children without supervision.
• The appliance is not suitable for installation in an area
where a water jet could be used.
• Substances listed as reduced are not necessarily in
your water. System must be maintained according to
manufacturer’s instructions, including replacement of
lter cartridges.
• Your water must be within required inuent water
characteristic limits for satisfactory operation. If not,
the reverse osmosis (RO) membrane cartridge’s life
may be shortened and your warranty will be voided
(see Installation Requirements).
• Install on cold water line only.
• Do not install where system will be exposed to direct
sunlight.
• Make certain that installation complies with all state
and local laws and regulations. Only use PTFE thread
seal tape or plumbers tape without adhesive backing
to seal joints. Do not use pipe compound (“pipe dope”),
sticks, or similar compounds with this unit; they
contain petroleum derivatives which can cause crazing
and cracking of the plastic in the lter housing.
WARNINGS
• Installation shall comply with applicable local, state,
and national plumbing and electrical regulations.
• The appliance is intended to be permanently
connected to the water mains and not connected by
a hose-set.
• Before installing the system, make certain your
water supply complies with the following operating
specications. Failure to do so may reduce the
effectiveness of the system and will void the warranty.
Consult your local water treatment utility or a
certied water testing lab to determine the quality of
your water.
• Do not use with water that is microbiologically unsafe
or of unknown quality without adequate disinfection
before or after the system. The Pentair EZ-RO System
will not protect against disease-causing bacteria or
remove naturally occurring harmless bacteria.
• The EZ-RO System contains replaceable components
that are critical to the e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
eciency and contaminant reduction performance.
• The EZ-RO System has lter cartridges and an RO
membrane cartridge included with the system that
have limited service lives which are critical for the
effective reduction of total dissolved solids. Product
water should be tested periodically to verify that the
system is working properly.
CAUTIONS
• The EZ-RO System must be protected against
freezing which can cause the lter housing to crack,
resulting in water leakage.
• Do not use electrical heating tape or a propane torch
on this unit.

PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE FOODSERVICE.PENTAIR.COM | 3
EZ-RO REVERSE OSMOSIS SYSTEM
INSTALLATION AND OPERATION GUIDE FOR MODEL NUMBERS:
EZ-RO 200/2G-BL
EZ-RO 200/5G-BL
EZ-RO 200/10G-BL
EZ-RO 200/16G-BL
EZ-RO 375/2G-BL
EZ-RO 375/5G-BL
EZ-RO 375/10G-BL
EZ-RO 375/16G-BL
INDEX
Safety Instructions..............................................................2
Introduction........................................................................3
General Information ............................................................4
Unpacking and Inspection ..................................................4
Part Names .........................................................................5
Installation Requirements...................................................6
Items Required for Installation ............................................7
Using Push-to-Connect Fittings.......................................... 7
Wall-Mount Installation .......................................................8
Optional Floor Stand Mount Installation...............................8
Connect Tubing...................................................................9
Reject Flow Restrictor Chart............................................. 10
System Startup and Flushing Process................................ 11
Prelter and Mineral Addition Flush and Tank Fill ............... 11
Twenty-four Hour Flush and Soak.......................................13
System Dump and Fill, Connect to Equipment................... 14
Adjust Blend Valve..............................................................15
Filter Change and Flushing Procedure................................16
TDS Monitor .......................................................................19
Troubleshooting................................................................20
Replacement Parts ...........................................................22
Dimensions .......................................................................23
Plumbing Flow ..................................................................24
NSF Product Certication Information..............................24
Warranty Information ........................................................24
INTRODUCTION
Leveraging proprietary technology, the Pentair® Everpure® EZ-RO system provides high quality water for applications, such
as premium espresso, coffee, ice, and blended beverages. The system combines multiple water treatment technologies,
providing superior protection against taste and odor-causing contaminants. The system meets espresso, coffee, ice, and
tea equipment and customer water quality standards, known to signicantly reduce scale and corrosion problems due
to high TDS, water hardness†, and chlorides* while reducing dirt†, particulates†and dissolved solids that may foul or scale
equipment or may contribute to corrosion.
*When installed, serviced and maintained according to Pentair Everpure installation and operation instructions.
† These contaminants are not performance tested or certied by NSF®.
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7
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8
A A
B B
C C
D D
68.00"
24.00"
24.00"
30.00"
47"
MODULAR RO -
DISPLAY SIZE ESTIMATE
HYDRO PNEUMATIC SYSTEM
68" TALL AREA x 24" WIDE x 30 DEEP TO WALL
16 GALLON TANK SHOWN
ALTERNATE TANKS DISPLAY OPTIONAL
15.4
20.3
23.2
30.4
13.9
17.9
15.3
15.3
12.3
11.00
DETAIL A
SCALE 1 / 2
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8
A A
B B
C C
D D
24.3
22.8
14.1
8.0
18.0
20.5
16.6
17.4
8.0
ATM SYSTEM
WITH #7 CANS
HYDRO PNEUMATIC TANK
AND SMALL ATM TANK
SYSTEM SIZE
Wall-mounted EZ-RO processor EZ-RO on (optional) oor stand Hydropneumatic tank sizes, depending on model purchased:
2 gal, 5 gal, 10 gal, 16 gal

4 | PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE FOODSERVICE.PENTAIR.COM
GENERAL INFORMATION
EZ-RO for Hardness Minerals and Undesirable TDS
Unltered water can degrade equipment and affect product taste, which hits food service business owners two
ways—operational costs and prot loss. Like most reverse osmosis systems, EZ-RO reduces contaminants before
they enter the equipment and the end user experience.
EZ-RO reduces high TDS (Total Dissolved Solids) on a molecular level. It then adds back calcium and magnesium
from the mineral addition cartridge and allows you to blend back additional TDS to your specic requirements
with the built in TDS meter, making it ideal for ice machines, coffee and espresso brewing equipment. It achieves
next level quality water through its ease of use from install through on-going maintenance, water eciency, and
expandability.
Quality System for Quality Water
EZ-RO features a compact body with a built-in bypass and ush valves, so you cut down on steps during install and
servicing. From there, we ensure seamless performance. The reimagined RO solution lters contaminants—all
while adding back the minerals you want. This tailored blending process moderates the right amount of dissolved
minerals to achieve your desired nal water quality.
Easy – With more accessible parts and no extra SKUs, this all-inclusive system makes specication, installation,
and maintenance easier. It’s universal, so contractors know what they’re dealing with after one encounter.
Expandable – Our system grows with the business by design. The system is compact, yet customizable to expand
no matter how it’s installed—wall mounted, free standing or under the counter. Upgrade lters or tanks as
operational needs increase, as available.
Ecient – The small footprint optimizes space. The remineralization technology safeguards the investment to
avoid premature replacements as the high output membrane recovers up to 50% water.
UNPACKING AND INSPECTION
Inspect the carton for damage. Carefully unpack and inspect each item. Report any damage to freight carrier
immediately and retain all packaging materials.
The Pentair EZ-RO system includes all the necessary ttings for installation except for an air gap for the waste
water. Lengths of 1/4", 3/8", and 1/2" tubing have been provided.
The Pentair EZ-RO system is packaged as a complete unit in two cartons. You should have the following:
Parts Quantity
Box 1 1. EZ-RO Processor with Plug 1
2. Pre Filter Cartridge 1
3. 4CM Mineral Addition Cartridge 1
4. EZ-RO Membrane: Size 200 or 375 1
5. Installation Kit,Tubing 1
6. Installation and Operation Guide (not shown) 1
Box 2 A. HP Tank Assembly: 2, 5, 10, or 16 Gal 1
Box 3 Optional Floor Stand (if ordered) (See page 22.) 1
Before mounting the EZ-RO System, inspect the parts. Use the table and illustration provided to verify the parts
and quantities. If you do not have these components, do not attempt to install this system. Contact Everpure
for assistance. If any parts are missing, contact Customer Service at 800.942.1153 / 630.307.3000 or by email at
[e-mail].
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One of the above

PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE FOODSERVICE.PENTAIR.COM | 5
PART NAMES
Cover
Blend Valve
RO Inlet
Pressure Dial Reject Flush Valve
Floor Stand (optional)
Outlet Valve
Inlet Valve
Permeate
Sample Port Valve
Optimized water TDS:
Measures the TDS of the
water from the mineral feed
cartridge and blend valve.
On/off button for
TDS monitor
Prelter
Tank
Tank Valve
Mineral Addition
Membrane Filter
Tank Tube
1/2" blue tube
connects to tank
Feed Water IN
3/8" green tube
1/2"MPT x 3/8" PTC (Push-to-Connect)
connection included to attach to inlet
water supply valve
Reject Water OUT
1/4"black tube
Tank sizes by water volume in gallons:
2 gal, 5 gal, 10 gal, 16 gal
(Currently shown is 5 gal)
10 psi precharge is standard.
TankTank
SamplingSampling
ValveValve
Total dissolved solids (TDS)
measured by parts per million.
Outlet Tube
Optimized Water OUT
to equipment
1/2" blue tube
1/2"MPT x 1/2" PTC 1/2"
connection included
to attach to outlet
water supply

6 | PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE FOODSERVICE.PENTAIR.COM
INSTALLATION REQUIREMENTS
This product is for commercial use only and must be installed and maintained in accordance with manufacturer’s
guidelines and local regulatory plumbing and electrical codes.
LOCATION
The system should be installed indoors and close to:
•RO processor: The hydropneumatic (HP) tank can be
no further than 10 feet from the RO processor due
to the tubing connections.
•Water source
•Drain (within ve feet of unit)
•Equipment served (within 25 feet of unit)
Do not let the processor or storage tank freeze or be
exposed to rain or direct sunlight.
WATER REQUIREMENTS
Feed Water
Adequate ow and pressure of water to the unit is
essential.
Water supply should be:
•Cold water only
•Minimum 50 psi dynamic pressure, maximum 100
psi static pressure
• Supplied by a dedicated 1/2" water line to the installation
Install a full-ow ball valve and pressure gauge with 1/2"
female pipe thread (user supplied) for connection to
installation hardware provided with the system.
Feed-water chemistry
Operating a system on water supplies outside of these
parameters may lead to premature membrane failure.
Feed TDS Up to 1000 ppm
Feed pH 5 - 10
Hardness <12 grains
Free chlorine <3.0 mg/l
Turbidity <1.0 NTU
Iron (Fe) <0.1 mg/l
Manganese <0.05 mg/l
Hydrogen sulde 0.0 mg/l
Silica <20 mg/l
A water analysis must be conducted before installing
the system, or the required information can be obtained
from your local water utility. If your water analysis
shows that any of these parameters are not within
range, additional pretreatment and/or higher frequency
of maintenance may be necessary. Contact your
Everpure distributor for assistance.
The membrane can be fouled by:
•Silica
•Flocculants such as alum or cationic polymers
•Hardness, iron, manganese and hydrogen sulde
The presence of silica or occulants in the feed water may
require special chemical pretreatment or more frequent
membrane replacing. Please note that membrane failure
due to fouling is not covered by the warranty.
DRAIN
The drain should:
•Be located within ve feet of the unit
•Have a locally compliant air gap
The drain must:
•Allow a minimum ow of two gallons per minute
•Be accessible for system set-up and service
STORAGE TANK
The tank must be located 10 feet or less from the water
processor unit. The oor beneath the storage tank
should be smooth, clean and free of sharp objects that
could scratch or puncture the bottom of the tank.
OPTIMIZED WATER LINES TO EQUIPMENT
Tubing, piping and associated ttings connecting
optimized water lines to equipment should be food
grade material that meets NSF Standards 51 or 61 with
a minimum pressure rating of 100 psi.
Optimized water may react with most metal piping
imparting a bad taste. Plastic pipe or reinforced opaque
beverage tubing are acceptable choices for optimized
water distribution. A 1/2" or larger inside diameter
tubing or hose will minimize pressure drop.
INSTALL

PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE FOODSERVICE.PENTAIR.COM | 7
ITEMS REQUIRED FOR INSTALLATION
In most cases, common hand tools and plumbing materials suitable for use with potable water are all that is
needed for system installation. The system setup and calibration requires special equipment:
•Two - 32 ounce or 1,000 ml graduated containers
•Stopwatch
•Air pressure gauge
•Bicycle tire pump with Schrader valve
•TDS meter
•Tube cutter
•Pencil or pen
•5.25% household bleach or equivalent disinfectant
•Full ow ball valve with 1/2" female NPT thread
•Phillips head screwdriver
•PTFE tape
•Adjustable wrench
•Cable ties
•Air gap accessory (optional)
•1/4" tubing clamps (included)
•Food grade (NSF) plumbers grease,
•5 gallon bucket (recommended for ushing)
•Four wall anchors to support processor adequately
for the installation area walls (included for drywall
with wood studs)
OR clean surface on which to place the processor in
(optional) stand
NOTE: Consult with your local building inspector for approval and required permits to install this system.
Additional equipment may be required. Installation must meet all local and national codes.
Fitting Overview
Collet/Gripper (dark gray)
Tubing Preparation
The tubing outside must be free of
nicks or gouges.
Cut tubing with a proper tube cutter
for a clean, round cut.
After cutting, make sure the
end of the tube is round. Fix if
needed.
Mark on the tube the depth that it
should go in. This will help you see
when the tube is fully inserted.
Size and color
of tube
Insertion
depth to mark
1/4"black 1/2" to 5/8"
3/8" green 3/4" to 7/8"
1/2" blue 1" to 1-1/8"
To Remove Tubing
Press collet in to release the
grippers while pulling out the tubing.
To Attach Tubing
To lubricate, moisten end of tubing
with fresh water.
Push tubing straight in.
You will feel resistance when the
tubing meets the O-ring.
Keep pushing past the resistance
until the tubing rests against the
stop. Check the mark that you made
on the tube to make sure the tube is
inserted far enough.
USING PUSH-TO-CONNECT FITTINGS
Get to know how to use the tubing connections before going forward.
O-ringO-ring StopStop
INSTALL

8 | PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE FOODSERVICE.PENTAIR.COM
WALL-MOUNT INSTALLATION
Locate system near equipment, drain, and water source.
• Do not block access to controls and lters.
• Leave at least 3" clearance below the cartridges
for removal.
• Mount processor where it is well-supported.
• Using appropriate wall anchors or screws, fasten
anchors into concrete or screw directly into studs
beneath wall board. If using concrete fasteners,
follow manufacturer's instructions.
NOTE: If mounting on drywall, locate studs. Make sure that
at least two of the anchors will be fastened into a stud.
1. Remove RO processor top cover by loosening
Phillips screw in the back. Using a level, draw a line
where the top or bottom of the bracket will be. Hold
the RO processor on the line in the position it will be
mounted and mark the four holes on the bracket.
2. Secure RO processor to wall using appropriate wall
anchors. Put in screws with enough clearance to
install the bracket.
3. How to use the supplied drywall/stud anchors:
a.Using #2 Phillips screwdriver, press drywall/stud
anchor tip slightly into drywall. Applying pressure,
turn anchor. If wood stud is hit, increase pressure.
Continue turning anchor until ush.
b. Insert screw into anchor and mostly screw it in.
4. Hook processor over all
four screws.
5. Slide processor to one
side and tighten screws.
• You can leave cover
off until nal ushing.
INSTALL
OPTIONAL FLOOR STAND MOUNT INSTALLATION
Locate system in a secure location that’s near
equipment, drain, and water source.
The oor stand kit part number is: EV315968.
• Do not block access to controls and lters.
1. Note the screw slots and tabs on the oor stand.
• On 200 and 375 models (size 4 cans: 14.5 inches
long) use the lower tabs and screw slots.
• On 650 models (size 7 cans: 20.75 inches long) use
the upper tabs and screw slots.
2. Hook the appropriate two slots on the back of the
processor over two tabs on the oor stand.
3. From the back of the stand, screw the stand and
processor together.
• You can leave cover off until nal ushing.
3
12
1
12"
13"
2
5
34

PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE FOODSERVICE.PENTAIR.COM | 9
CONNECT TUBING
NOTE:
• Follow instructions from “Using Push-to-Connect
Fittings” (page 7) when connecting tubing to ttings.
• At the connections ensure the tubes are cut as
straight as possible.
• Elbows are included in the optional oor stand
kit to keep the tubing from bending too much,
therefore preventing leaks.
• Locate the tank close to the processor, a distance
of 10 feet or less.
Inlet Tubing Connections (3/8" Green Tubing)
1. Install 3/8" green tubing to FEED WATER IN port at
bottom of RO processor.
2. Turn off incoming water supply at valve. Apply three
wraps of PTFE tape to NPT threads of 1/2" NPT x 3/8"
push to connect. Screw in tting to NPT threads on
water supply valve; hand tighten and tighten to no
more than 2ft lbs of torque. Leave enough tubing
for servicing and cut tubing to length. Insert other
end of 3/8" green tubing to 3/8" PTC tting installed
on incoming water supply.
Drain Tubing Connections (1/4" Black Tubing)
3. Install 1/4" black tubing to REJECT WATER OUT port.
4. Air gap: Install the other end of the 1/4" black drain
tubing to an air gap compliant with local codes.
Air gaps are available from Pentair.
(optional part no.: 164-89905)
5. Install the air gap to a drain pipe.
6. Secure drain tubing with 1/4" loop clips [two provided]
as permeate pump will cause drain line to kick.
Tank Tubing Connections (1/2" Blue Tubing)
7. Install 1/2" blue tubing to CONNECT TO TANK port.
NOTE: Two and ve gallon tanks require tank shutoff
valve installation. Install shutoff valve onto 1/4" NPT tting
on tank. Use PTFE tape (thread seal tape) on tank
tting. Twist shut off valve until tight on tank. Do not
tighten over 2ft lbs of torque.
8. Cut tubing to length and make connection to
TANK VALVE. (Save additional tubing for outlet
connection.)
NOTE: Valves on 10 and 16 gallon tanks have a double
O-ring. Make sure the tubing cut is square when viewed
from the side and round when viewed from the end. Make
sure O-rings are in correct location in tting. Insert
tubing past both O-rings until it comes to a hard stop.
5 6
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3 4
INSTALL
2

10 | PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE FOODSERVICE.PENTAIR.COM
CONNECT TUBING (CONTINUED)
Install Tee with Tank Sampling Valve
9. Install a tee with a sampling valve in a convenient
location on the 1/2" line recently installed to the tank.
This will be used to sample the water going to the tank
and used for ushing the cartridges. Make sure the
valve is closed and the end of the tube stays clean.
Outlet Tubing Connection (1/2" Blue Tubing)
10. Install 1/2" blue tubing into OPTIMIZED WATER OUT
port. This tube will be connected to the equipment after the ushing procedure.
11. Run other end of the blue optimized outlet tube to a clean sink or drain. Secure
tubing (with zip ties or similar) so that it doesn't leap out of position during
ushing. Maintain an air gap.
IMPORTANT: Do NOT connect to equipment at this time. Connection to equipment
will follow ushing process.
NOTE: Make sure outlet tubing will not come dislodged from drain or sink. Water ow
rates can cause the tubing to kick.
• A 1/2" NPT x 1/2" push-to-connect tting is included.
9
tank tank
samplingsampling
valvevalve
(closed)(closed)
teetee
11
10
EZ-200 RO Module - Reject Line Flow Restrictor Guide Hydropneumatic Systems
RO Permeate Production Rate High Medium Low
FEED WATER
TDS / PPM
psi greater than 70
or Lpm greater than 0.4
psi between 50 & 70
or Lpm Between 0.3 & 0.4
Low Pressure /
Low Temperature
Lpm Less than 0.30
Soft Water & >300 GREEN 0.5 Lpm GREEN 0.5 Lpm GREEN 0.5 Lpm
300 to 700 GREEN 0.5 Lpm BLUE 0.7 Lpm GREEN 0.5 Lpm
700 to 1200 BLUE 0.7 Lpm BLUE 0.7 Lpm GREEN 0.5 Lpm
EZ-375 RO Module - Reject Line Flow Restrictor Guide Hydropneumatic Systems
RO Permeate Production Rate High Medium Low
FEED WATER
TDS / PPM
psi greater than 70
or Lpm greater than 0.75
psi between 50 & 70
or Lpm between 0.5 & 0.75
Low Pressure /
Low Temperature
Lpm Less than 0.50
Soft Water & >300 WHITE 1.052 Lpm* BLUE 0.735 Lpm GREEN 0.525 Lpm
300 to 700 WHITE 1.052 Lpm* WHITE 1.052 Lpm* GREEN 0.525 Lpm
700 to 1200 GRAY 1.577 Lpm WHITE 1.052 Lpm* BLUE 0.735 Lpm
*WHITE 1.052 Lpm ow restrictor comes pre-installed in RO processor.
Production rate can be between High/Medium/Low caused by water temperature, incoming pressure (psi), and TDS of water.
NSF testing completed at inuent water conditions of 750 ppm TDS and at 50 psi water, using reject ow restrictor as indicated.
REJECT FLOW RESTRICTOR CHART
FLOW RESTRICTOR INSTALL