AmeriWater Central Sterile RO3 Manual

3345 Stop 8 Rd, Dayton, OH 45414 | 800 535 5585 | www.ameriwater.com 98-2005 Rev H
Manufactured With Pride in the USA
Operation & Maintenance Manual
Central Sterile RO3 & RO4
00HC-0060 and 00HC-0075

TABLE OF CONTENTS HCRO3/HCRO4
1 98-2005 Rev H
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 Electrical Schematic.........................................................................................................................11
2.7 Flow Schematics...............................................................................................................................12
3SYSTEM INSTALLATION ...............................................................................................................14
3.1 Pre-Installation Requirements .......................................................................................................14
3.2 General Installation .........................................................................................................................14
3.3 RO3/4 Installation ............................................................................................................................14
3.4 PT401 Installation ............................................................................................................................16
4SYSTEM START-UP PROCEDURES ................................................................................................17
4.1 Caution..............................................................................................................................................17
4.2 Safety Features ................................................................................................................................17
4.3 RO ......................................................................................................................................................18
4.3.1 PT401 Priming Procedure...........................................................................................................20
4.4 System Shutdown............................................................................................................................22
5OPERATION AND MONITORING .................................................................................................23
5.1 Operation..........................................................................................................................................23
5.2 Bypass Procedure............................................................................................................................23
5.3 System Monitoring ..........................................................................................................................23
5.4 AAMI Monitoring..............................................................................................................................26
6DISINFECTION ..............................................................................................................................26
6.1 Disinfection Procedure ...................................................................................................................26

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6.1.1 Disinfecting the RO3/4 ................................................................................................................26
6.2 A Word about Hydrogen Peroxide/Peroxyacetic Acid ................................................................29
7CLEAN IN PLACE (CIP) ..................................................................................................................30
8CONTROLLER................................................................................................................................32
8.1 RO 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 RO 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...........................................................................................................56

USER INFORMATION HCRO3/HCRO4
3 98-2005 Rev H
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 RO3 and RO4 models. 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.

USER INFORMATION HCRO3/HCRO4
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1.3 Electrical Leakage Standards
The AmeriWater RO3 and RO4 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

TECHNICAL INFORMATION HCRO3/HCRO4
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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
50 PSI (Pounds per Square Inch)
Pump pressure
Minimum
Maximum
150 PSI
230 PSI
Maximum output of product water
@ 77°F (25°C), TDS<1000 ppm of
NaCl, & pump pressure of 150 psi.
RO3 –APPROXIMATELY 4,200 GPD (APPROXIMATELY
15,897 LPD)
RO4 –APPROXIMATELY 5,600 GPD (APPROXIMATELY
21,196 LPD)
(Gallons Per Day / Liters Per Day)
Power Ratings
Voltage
Frequency
Phase Ø
Amp Draw
RO Controller
115 VAC
60HZ
1Ø
10
RO Pump
230 VAC
60HZ
1Ø
9.8
RO Connection
Provided Hose Length
External Connection
Inlet Tap ¾” Plain Hose
10 ft
¾” FGHT
Product ½” Plain Hose
10 ft
¾” MGHT
Reject to Drain ½” Plain Hose
10 ft
½” 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
1Phase / 230VAC/60HZ/15AMP with Ground
Shipping Weight
Operating Weight
650 lbs.
1200 lbs.

TECHNICAL INFORMATION HCRO3/HCRO4
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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.

TECHNICAL INFORMATION HCRO3/HCRO4
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2.5 System Components
Figure 1: External Front View

TECHNICAL INFORMATION HCRO3/HCRO4
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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. CHLORINE 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. PREFILTER 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.
14. REJECT PRESSURE –Gauge that measures the pressure in pounds per square inch (PSI) from
the reject of the membranes.

TECHNICAL INFORMATION HCRO3/HCRO4
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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 HCRO3/HCRO4
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IDENTIFICATION OF COMPONENTS (Figure 2)
19. PRODUCT CONDUCTIVITY CELL: Measures the conductivity of the product water.
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. INLET PRESSURE SWITCH: Pressure switch to protect the pump from running dry in the
event that water pressure drops too low.
22. INLET CONDUCTIVITY CELL: Measures the conductivity of the incoming water.
23. DISINFECT SOLENOID: Solenoid valve that opens during the disinfect cycle to allow
disinfectant to be drawn into the RO.
24. INLET SOLENOID: Solenoid valve that opens during normal operation to allow flow of water
into the device.
25. PUMP: Provides the pressure for the RO system. The RO ON/OFF switch controls the pump
motor
26. MEMBRANES: Spiral-wound, thin film, composite membranes for reverse osmosis.
27. MOTOR CONTACTOR / OVERLOAD RELAY: Starts and stops the pump motor and protects
the motor from overload.

TECHNICAL INFORMATION HCRO3/HCRO4
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2.6 Electrical Schematic
Figure 3: Electrical Diagram, RO3 & RO4

TECHNICAL INFORMATION HCRO3/HCRO4
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2.7 Flow Schematics
Figure 4: RO3 Flow Schematic

TECHNICAL INFORMATION HCRO3/HCRO4
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Figure 5: RO4 Flow Schematic

SYSTEM INSTALLATION HCRO3/HCRO4
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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 RO3/4 Installation
1. The electrical source must be single phase, 3-conductor type provided with a hospital grade
receptacle and a ground fault interrupter (GFI) at 115V, 15amp, 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. The pump for the RO must be plugged into a
dedicated 220V/60Hz/15A outlet.
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.

SYSTEM INSTALLATION HCRO3/HCRO4
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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 chlorine 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 @ 6 GPM (while the RO is in operation, with flow).
Maximum feed pressure is 50 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 HCRO3/HCRO4
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4SYSTEM START-UP PROCEDURES
4.1 Caution
NOTE: This entire Operations Manual should be read before operating or servicing the RO system.
The Operations 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 CHLORINE 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.
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
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.

SYSTEM START-UP PROCEDURES HCRO3/HCRO4
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An audible alarm sounds whenever water quality drops to an unacceptable level.
WARNING: The AmeriWater model RO3/4 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.
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