AmeriWater Central Sterile RO3X Manual

3345 Stop 8 Rd, Dayton, OH 45414 | 800 535 5585 | www.ameriwater.com 098-0002 Rev B
Manufactured With Pride in the USA
Operation & Maintenance Manual
Central Sterile RO3X
00HCRO3X402

TABLE OF CONTENTS HCRO3X
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TABLE OF CONTENTS
TABLE OF CONTENTS ............................................................................................................................1
1USER INFORMATION......................................................................................................................3
1.1 Manual Definitions ............................................................................................................................3
1.2 Introduction........................................................................................................................................3
1.3 Electrical Leakage Standards ...........................................................................................................4
1.4 Cautionary Symbols ..........................................................................................................................4
1.5 Warranty Policy ..................................................................................................................................4
2TECHNICAL INFORMATION ...........................................................................................................5
2.1 System Specifications........................................................................................................................5
2.2 Environmental Conditions Anticipated...........................................................................................6
2.3 Transport Conditions Anticipated ...................................................................................................6
2.4 Theory of Operation..........................................................................................................................6
2.5 System Components .........................................................................................................................7
2.6 Electical Schematic ..........................................................................................................................11
2.7 Flow Schematic ................................................................................................................................12
3SYSTEM INSTALLATION ...............................................................................................................13
3.1 Pre-Installation Requirements .......................................................................................................13
3.2 General Installation .........................................................................................................................13
3.3 RO3X Installation .............................................................................................................................13
3.4 PT401 Installation..........................................................................................................................15
4SYSTEM START-UP PROCEDURES ................................................................................................16
4.1 Caution..............................................................................................................................................16
4.2 Safety Features ................................................................................................................................16
4.3 RO ......................................................................................................................................................17
4.3.1 PT401 Priming Procedure...........................................................................................................20
4.4 System Shutdown............................................................................................................................21
5OPERATION AND MONITORING .................................................................................................22
5.1 Operation..........................................................................................................................................22
5.2 Bypass Procedure............................................................................................................................22
5.3 System Monitoring ..........................................................................................................................22
5.4 AAMI Monitoring..............................................................................................................................24
6DISINFECTION ..............................................................................................................................24
6.1 Disinfection Procedure ...................................................................................................................24

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6.1.1 Disinfecting the RO3X .................................................................................................................25
6.2 A Word about Hydrogen Peroxide/Peroxyacetic Acid ................................................................27
6.3 Membrane Flush Feature (Auto Flush) .........................................................................................29
7CLEAN IN PLACE (CIP) ..................................................................................................................30
8RO CONTROLLER..........................................................................................................................32
8.1 Front Panel Controls and Indicators .............................................................................................32
8.2 Controller Operation.......................................................................................................................33
8.3 Controller Adjustments...................................................................................................................36
8.4 Standard Set-points.........................................................................................................................39
8.5 To Display or Change Set-points ...................................................................................................41
8.6 Changing Resistors on the RO Control Board for C2 Range......................................................41
9MAINTENANCE.............................................................................................................................43
9.1 Maintaining the System ..................................................................................................................43
9.2 PT401 Anti-Scalant...........................................................................................................................43
9.3 Membrane Maintenance Instructions ..........................................................................................43
9.3.1 Membrane Replacement Procedure:........................................................................................43
9.3.2 Rinse Out Cycle ............................................................................................................................45
10 TROUBLESHOOTING AND REPAIR..........................................................................................46
10.1 Troubleshooting Chart....................................................................................................................46
10.2 Controller Troubleshooting............................................................................................................48
10.3 Pump Repair.....................................................................................................................................50
10.4 Installing a Replacement Pump Assembly ...................................................................................50
10.5 Solenoid Test Procedure.................................................................................................................51
10.6 Solenoid Valve Replacement..........................................................................................................52
11 SPARE PARTS LISTING .............................................................................................................53
CALIFORNIA PROPOSITION 65...........................................................................................................57

USER INFORMATION HCRO3X
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1USER INFORMATION
1.1 Manual Definitions
NOTE: This symbol points out important information for working with the system in a proper
manner.
WARNING: This symbol refers to a possible danger that threatens the safety and life of
persons.
CAUTION: This symbol refers to a possibly hazardous situation. Failure to observe these
references may result in minor injuries and/or damage to property.
1.2 Introduction
This system is designed to pretreat and purify water for use in sterile processing applications. The
system is shipped with required water treatment components. If the system will be running without
softened water, the PT401 system will need to be connected to the side of the RO. This Operation
Manual was written specifically for the RO3X model. Your system was thoroughly tested and in
excellent condition when it was shipped to you. However, because damage during shipment is
possible, please unpack and carefully inspect the system as soon as you receive it. Please notify
AmeriWater if any problems are encountered.
Please read the Operation Manual before using the system. Contact AmeriWater Customer
Service with any questions at 1-800-535-5585 Monday through Friday 8:00 a.m. to 5:00 p.m. Eastern
Time. For after-hours emergencies call 1-800-535-5585 and follow the instructions on the recorded
message. Our on-call technician will return your call as soon as possible. This entire Operation
Manual should be read before operating or servicing the system. This Operation Manual should
then be kept near the system and used as a reference and troubleshooting guide.
WARNING: This Reverse Osmosis System (RO) contains a preservative solution to prevent
microbiological growth and freezing. Discard all product water for at least two hours of
operation before placing the RO in service.
Materials that Contact Product Water
ABS
Acrylic
Carbon
EPDM
Nylon
Polyester
Polyethylene
Polypropylene
PVC
Stainless Steel
TFCM* (Polyimide)
Tygon
*Thin Film Composite Membrane
All of the above listed materials meet FDA and/or NSF standards.
Safety Features: The RO is equipped with several safety features for the benefit of the user.
•INCOMING TAP WATER, PRODUCT WATER, and REJECT WATER TO DRAIN hoses are labeled to
prevent incorrect connections.
•An audible alarm sounds whenever water quality drops to an unacceptable level.

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1.3 Electrical Leakage Standards
The AmeriWater RO water treatment systems comply with the IEC 61010-1 Standards for Product
Safety and Construction.
The cabinet of the RO is PVC for additional operator safety.
The RO is compliant with IEC 61010-1 Safe Current Limits. All major components of the RO
(controller, pump, solenoid valve, anti-scalant pump, etc.) are UL listed.
1.4 Cautionary Symbols
Caution, risk of electrical shock!
Attention, risque de choc électrique!
Open by qualified service personnel only!
Ouverture par le personnel qualifié seulement!
Refer to this Operation and Maintenance Manual for
instructions and safety considerations. Référez-vous au
manuel des Opérations et Entretien pour instructions
et mesures de sécurité.
Caution, risk of danger!
Attention, danger potentiel!
For service by qualified service personnel only!
Entretien par le personnel qualifié seulement!
Replace with 120Vac, 15amp, time-delay fuse only.
Remplacer avec 120Vac, 15 amp, fusible à
retardement seulement.
Earth Ground terminal
Borne de mise à la terre
This product has been tested to the requirements of
CAN/CSA-C22.2 No. 61010-1, second edition, including
Amendment 1, or a later version of the same standard
incorporating the same level of testing requirements.
Product marked with this symbol indicates that it is
protected throughout by double insulation or reinforced
insulation.
1.5 Warranty Policy
This product is covered under the standard AmeriWater warranty policy. For specific terms and
conditions, please contact your AmeriWater Sales Representative.
120
15

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2TECHNICAL INFORMATION
2.1 System Specifications
Ideal, minimum, and maximum
incoming water temperature
Min = 41° F (5° C)
Max = 90° F (33° C)
Ideal Temperature = 77° F (25° C)
Pre-filter gauge pressure (when the
RO is running)
Minimum
Maximum
20 PSI
90 PSI (Pounds per Square Inch)
Pump pressure
Minimum
Maximum
150 PSI
275 PSI
Maximum output of product water
@ 77°F (25°C), TDS<1000 ppm of
NaCl, & pump pressure of 150 psi.
RO3X –APPROXIMATELY 5,500 GPD (APPROXIMATELY
24,800 LPD)
(Gallons Per Day / Liters Per Day)
Power Ratings
Voltage
Frequency
Phase Ø
Amp Draw
RO Controller
115 VAC
60HZ
1Ø
10
RO Pump
208 VAC
60HZ
3Ø
10
RO Connection
Provided Hose Length
External Connection
Inlet Tap ¾” Plain Hose
10 ft
¾” FGHT
Product ½” Plain Hose
10 ft
½” MGHT
Reject to Drain ¾” Plain Hose
10 ft
¾” Plain Hose
Electrical Requirements
Controller Power: 115V/60Hz/15A dedicated Dual Outlet GFI
(Ground Fault Interrupter) for RO controller
Pump Power: dedicated disconnect switch rated for 3Phase /
208VAC/60HZ/20AMP with Ground
Shipping Weight
Operating Weight
300 lbs.
420 lbs.

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2.2 Environmental Conditions Anticipated
This device is intended to be used under the following conditions:
•Indoor use
•Altitude up to 6562 feet (2000 m)
•Temperature between 41°F and 104°F (5°C and 40°C)
•Maximum relative humidity 80% for temperatures up to 87.8°F (31°C) decreasing linearly to
50% relative humidity at 104°F (40°C)
•MAINS supply voltage fluctuations up to + 10% of the nominal voltage
•Transient overvoltages present on MAINS supply = CATEGORY II
•Applicable RATED POLLUTION degree 2
2.3 Transport Conditions Anticipated
•Altitude up to 6562 feet (2000 m)
•Temperature between 41°F and 104°F (5°C and 40°C)
•Maximum relative humidity 80% for temperatures up to 87.8°F (31°C) decreasing linearly to
50% relative humidity at 104°F (40°C)
2.4 Theory of Operation
The process of osmosis can be reversed by placing pressure upon the feed water side (concentrated
solution side) of the membrane. Water will be forced through the membrane barrier to yield water
that is purer on the lower pressure side of the membrane than on the more concentrated solution
side (higher pressure side) of the membrane. The feed water will become more “concentrated,” and
will be discharged through the reject port known as “reject water” or “concentrate”.
Hence, the liberation of purer water from its solutions is caused by the reversal of the osmotic
pressure; the operation is termed “Reverse Osmosis”. Reverse Osmosis is commonly referred to as
“RO”.
Plastic container filled with PT401 solution to prevent the RO membranes from scaling is provided
and should be used in the absence of a water softener.

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2.5 System Components
Figure 1. External Front View

TECHNICAL INFORMATION HCRO3X
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IDENTIFICATION OF COMPONENTS (Figure 1)
1. SIDE ENTRY HOODS: External connection for float level switches (4 pin connection) and PT
Pump power connection (5 pin connection).
2. PRE-FILTER INLET GAUGE –Gauge that measures the pressure in pounds per square inch
(PSI) of the incoming tap water as it enters the carbon block pre-filters.
3. CARBON CARTRIDGE FILTERS –Dual 10-micron carbon cartridges for removal of chlorine
& sediment.
4. PRODUCT WATER –Hose transmitting purified water from the RO system to the DI
Polisher or Storage Tank.
5. PT401 FEED PUMP –Injects PT401 Anti-scalant / Scale inhibitor solution at a
predetermined dosage based on a water hardness. The PT401 pump runs when the main
pump runs.
6. PT401 ANTI-SCALANT / SCALE INHIBITOR –Plastic container filled with PT401 solution to
prevent the RO membranes from scaling. The plastic container should be refilled with
PT401 solution when it reaches the half-full level. Do not use if water supply is softened.
7. INCOMING TAP WATER –Hose feeding tap water into the RO system.
8. REJECT WATER TO DRAIN –Hose transmitting wastewater to the drain.
9. CHLORAMINE SAMPLE PORT –Valve with nozzle to let small amounts of water out to test
for the presence of chlorine before the RO membranes.
10. PAA QUICK CONNECT FITTING (RO) –Quick connect fitting that the PAA container is
connected to on the RO for sanitization.
11. PRODUCT WATER SAMPLE PORT –Valve with nozzle to let small amounts of water out to
test the quality of the product water.
12. PRE-FILTER OUTLET GAUGE –Gauge that measures the pressure in pounds per square
inch (PSI) of the water after going through the carbon cartridge filters. Change the filters
when the outlet gauge reads 15 PSI less than the inlet gauge.
13. PUMP PRESSURE –Gauge that measures the primary feed pressure in pounds per square
inch (PSI) from the pump to the RO membranes.

TECHNICAL INFORMATION HCRO3X
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14. REJECT PRESSURE –Gauge that measures the pressure in pounds per square inch (PSI)
from the reject of the membranes.
15. CONTROLLER –Control mechanism for the RO.
16. RECIRCULATION GPM –Flowmeter that indicates the flow of water that is recirculated
back to the pump’s inlet. A valve is incorporated into the flowmeter to allow adjustment.
17. REJECTION GPM –Flowmeter that indicates the flow of water that is rejected to the drain.
A valve is incorporated into the flowmeter to allow adjustment.
18. PRODUCT GPM –Flowmeter that measures the flow of the product water in gallons per
minute (GPM) and liters per minute (LPM).
Figure 2: Internal Rear View

TECHNICAL INFORMATION HCRO3X
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IDENTIFICATION OF COMPONENTS (Figure 2)
19. MOTOR CONTACTOR/OVERLOAD RELAY: Starts and stops the pump motor and protects
the motor from overload.
20. CLEAN IN PLACE SWITCH (ALARM FAULT OVERRIDE): When the Clean In Place (CIP)
switch is placed to the ON position, all RO fail-safe modes are disabled for low-pressure
membrane cleaning with the optional AmeriWater Clean In Place system (P/N 00CIP2). The
controller will display a warning that the CIP mode is active.
21. MEMBRANE: Fiberglass wrapped, spiral-wound, thin film composite membrane for
reverse osmosis.
22. PUMP: Provides the driving pressure for the reverse osmosis system.
23. PRODUCT HEADER ASSY: This header directs all product water from the membranes to
the flowmeter.
24. INCOMING CONDUCTIVITY SENSOR: Cell that reads the quality of the feed water.
25. PRODUCT TO DRAIN SOLENOID: Opens when water quality is below set-point.
26. PRODUCT TO USE SOLENOID: Closes when water quality is below set-point.
27. DISINFECT SOLENOID ASSEMBLY: Opens to allow the hydrogen peroxide/peroxyacetic
acid mixture to draw into the system to soak for the sanitize cycle.
28. FEED SOLENOID ASSEMBLY: Opens when the RO system is on to allow water to feed
through the system, closes when the system is OFF.
29. DISINFECT EJECTOR: Causes suction to draw solution from PAA jug when the Disinfect
Solenoid is opened.
30. LOW PRESSURE SWITCH: Switch to protect the pump in the event that the feed pressure
drops below 20 PSI.
31. PRODUCT CONDUCTIVITY SENSOR: Cell that reads the quality of the product water.

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2.6 Electical Schematic
Figure 3: Electrical Diagram, RO3X

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2.7 Flow Schematic
Figure 4: RO3X Flow Schematic

SYSTEM INSTALLATION HCRO3X
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3SYSTEM INSTALLATION
3.1 Pre-Installation Requirements
1. Utility requirements;
a. Plumbing: ¾” ball valve with NPT threads and dynamic pressure of at least 20 PSI at
10 GPM.
b. Electrical: see Section 2.1.
2. Hot and cold city/tap water supply line flushed and free of debris before equipment
installation.
3. Floor drain within 4 feet of the RO/DI system capable of handling up to 10 GPM flow.
4. Supply piping to the washer/disinfector/sterilizer system(s) within 3 feet of the RO/DI
distribution pump with a shut off valve.
5. Access space of 1 foot on each side and behind the water treatment equipment with a 3 foot
aisle in front of the equipment or required to meet local codes.
3.2 General Installation
1. If there is a need for more pressure or flow rate, the high flow storage tank should be
considered.
2. Two (2) hose clamps are to be used per hose connection.
3. A visual inspection is to be performed upon finishing installation and start-up of each system
to ensure each component will function as intended. This includes, but is not limited to: lids
and respective O-rings are not damaged or loose, damaged or loose hoses, leakage, secured
power outlets, etc.
3.3 RO3X Installation
1. The electrical source must be three phase, 3-conductor type provided with a hospital grade
receptacle and a ground fault interrupter (GFI) at 115V, 20amp, and 60Hz. The proper
polarity and ground integrity must be initially checked and thereafter maintained. Failure to
do so may result in electrical shock to the operator. It is suggested that the RO be placed on
an electrical supply with emergency backup.
2. The RO must only be plugged directly into a GFI receptacle. It must not be plugged into an
extension cord or power strip that could cause low amperage.
CAUTION: To avoid electrical shock, always unplug the RO system before opening the face of
the electrical controller.
3. Incoming water should be between 41°F and 90°F (5°C and 33°C). It is not recommended to
use water at temperatures below 41°F (5°C) as it will reduce membrane performance
significantly. Use only the cold water supply unless using an automatic blending valve to get
77°F (25°C) water. Never use water warmer than 90°F (33°C).
4. Water with silt density index (SDI) above 5 SDI will foul the membrane.

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5. The RO system may be equipped with a pretreatment system to remove chlorine. It is
important to test for chlorine at the chloramine sample port periodically. Chlorine will
deteriorate the membrane and cause system failure. It is recommended to use a chlorine
test strip.
6. Incoming tap water pH should be within EPA National Secondary Drinking Water Regulations
of 6.5 –8.5. Incoming tap water with pH higher or lower than the regulation will cause higher
conductivity in the product water. If the water changes drastically, the membrane will be
harder to clean. Periodically check the pH of the incoming tap water to verify that it is within
the specified range (IBT pH Water Test Strips P/N 97PH20901).
7. Always maintain water flow and pressure to avoid damage to the pump.
8. Minimum feed pressure is 20 PSI (while the RO is in operation, with flow). Maximum feed
pressure is 90 PSI.
9. Remove the plugs from the product water, reject water to drain, and incoming tap water
fittings on the front of the RO.
10. Connect the INCOMING TAP WATER,
PRODUCT WATER and REJECT WATER TO
DRAIN hoses to the appropriate fittings
on the RO. All hoses should run to the
right side of the RO. This will allow you to
move the RO forward to access the rear
panel.
NOTE: To remove the hoses, depress the gray
“collet” inward while gently pulling the hose out.
The tubing extension MUST be fully inserted into
the fitting body to the tube stop.
CAUTION: To ensure proper assembly, tubing
extension MUST be fully inserted into the
fitting body to the tube stop.
11. Open the back cover and remove any packing foam.

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3.4 PT401 Installation
1. The anti-scalant feed system should be installed before the RO in a water treatment system.
2. Install the anti-scalant feed system on a firm, level floor. Be sure to follow all local plumbing
and electrical codes.
3. Place the solution tank with injection pump in place and connect one end of the loose hose
to the empty connector on the pump and the other end of the hose to the connector on the
RO in after the pre-filters.
4. Fill the solution tank with the supplied chemical and follow the pump priming procedure.
NOTE: Use AmeriWater, CP Grade (Chemically Pure) chemicals only!
CAUTION: Disconnect ALL power supplies to the RO prior to connecting the metering pump to
the RO control or electrical shock could result.
5. Plug the male 5-pin connector from the metering pump into the female 5-pin connector via
the hood on the side of the RO.
6. Turn on the power to the RO and place RO into service, for the anti-scalant metering pump
to turn on.
NOTE: In order for the metering pump to run, the RO pump must also be running.

SYSTEM START-UP PROCEDURES HCRO3X
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4SYSTEM START-UP PROCEDURES
4.1 Caution
NOTE: This entire Operation Manual should be read before operating or servicing the RO3X system.
The Operation Manual should then be kept near the system and used as a reference and
troubleshooting guide.
WARNING: This Reverse Osmosis System (RO) contains a preservative solution to prevent
microbiological growth and freezing. Discard all product water for at least two hours of
operation before placing the RO in service.
1. It is important to test for chlorine and chloramines at the CHLORAMINES SAMPLE PORT
before each use of the system. Chlorine will deteriorate the membrane and cause system
failure. It is recommended to use a Total Chlorine test kit, such as Water Check 2 Low Level
Chlorine/Chloramines Test Strips (P/N 97CM20201).
CAUTION: Mixing chlorine and hydrogen peroxide/peroxyacetic acid causes a toxic chemical
reaction. Never allow them to mix! Do not use chlorine to disinfect the system!
2. Use only the exact amount of hydrogen peroxide/peroxyacetic acid disinfectant solution
(PAA) and in proper dilution during disinfection of the system.
3. It is important to test for PAA in the Product Water after rinsing during disinfection of the
system. Do not use the system until all traces of the disinfecting solution in the Product
Water are gone.
WARNING: The Clean In Place Switch, located inside the cabinet on the back of the controller,
must be in the OFF position during normal operation. If the Clean In Place Switch is left in the
ON position during normal operation, all RO fail-safe modes will be disabled, and damage to
the RO.
4. Ameriwater recommends installing a sediment filter added as pretreatment for the RO.
5. Minimize the opportunities for bacterial growth between uses! Whenever the RO is not used
for a period of several hours, and connected to a Storage Tank, the “Membrane Flush
Feature” of the RO should be programmed to be active when in the OPERATE mode. See
Section 6.3 for activating this feature. This feature will flush the RO when the Storage Tank is
full and the water level is maintained at the Tank Full High float switch by diverting the
Product Water to drain.
4.2 Safety Features
The RO is equipped with several safety features for the benefit of the user. They consist of the
following:
Disinfection using (PAA) disinfecting solution instead of formaldehyde increases safety and avoids
health risks associated with formaldehyde. Using PAA does not require additional ventilation, and

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disposal is safe and easy. Important information regarding the usage and handling of PAA is listed in
Section 6.2, A WORD ABOUT HYDROGEN PEROXIDE/PEROXYACETIC ACID. Please read carefully.
INCOMING TAP WATER, PRODUCT WATER, and REJECT WATER TO DRAIN hoses are labeled to
prevent incorrect connections.
Low pressure shutdown protects the pump if the feed pressure drops below 20 PSI.
An audible alarm sounds whenever water quality drops to an unacceptable level.
WARNING: The AmeriWater model RO3X is considered a non-portable device. It can be
connected to a Storage Tank system. For this reason, there is a divert to drain on this model.
The Product water will divert to drain as long as the conductivity is out of specification (no
water will be sent to the Storage Tank). The poor quality alarm for the RO will sound, but the
water that is already in the storage tank can continue to be used.
4.3 RO
1. Lock the two front casters so that the RO will remain stationary during start-up.
NOTE: The incoming, product, and reject hoses were installed on the RO in the install steps.

SYSTEM START-UP PROCEDURES HCRO3X
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NOTE: Before connecting incoming feed water to RO, ensure feed water line is routed to drain
and until the water is clear to prevent rusty water from clogging the system.
2. Connect the RO incoming tap water hose to the potable cold water supply using the
incoming tap water hose and fittings supplied. If utilizing a blending valve, ensure hot and
cold water lines are flushed prior to operating the RO. Adjust blend valve to 77°F (25°C). Do
not exceed 82°F (28°C).
3. The reject water to drain hose coming out of the RO system is for reject water. The water
from this hose will go down the sink or drain. Leave at least a 2" air gap between the hose
and the drain to prevent contamination or siphoning.
4. The product water hose should also be secured to the drain until the start-up flush and
initial disinfection cycle are completed, and the water quality is in the good range (below the
conductivity set-point, and not in alarm).
5. Open the access cover and make sure that the “CIP” switch is in the “ON” position.
6. Plug the controller power cord into a dedicated 115-volt, 20-amp GFI receptacle.
7. Plug the pump power cord into a 220-volt, 15-amp receptacle.
8. For 3-phase applications, the 3-wire connections must be verified to give the correct rotation
on the RO pump. If not, specified pressure cannot be obtained, and the pump will quickly
overheat.
WARNING: Before start-up, membranes on the RO will need to be wetted in order to prevent
damage caused by air pressure.
9. Turn off high voltage to the pump. This will allow the pump to run at a low pressure.
10. Turn on the potable water supply to the RO and press the power button. Allow the
membranes to fill with water. This may take up to 5 minutes. Ensure water is flowing
through the drain and flowmeters.
11. Open the access cover and switch the “CIP switch to the “OFF” position.
12. Turn on high voltage to the pump.
13. Turn on the RO by pressing the POWER key, and allow it to run making sure the water is
properly flowing out the Reject and Product hoses.
14. With the RO operating, adjust the valve on the reject flowmeter until the flow rate is equal to
the product flow rate of the RO; this will be 50% recovery. Operating the RO at higher
recovery percentage may reduce the life span of the RO membranes. Recovery is calculated
via the following equation: