AmeriWater 00HC-2015, 00HC-2045 User guide

MODEL 00HC-2015 & 00HC-2045

OPERATION & MAINTENANCE MANUAL

Manufactured With Pride

In The USA

www.ameriwater.com • 800-535-5585

AmeriWater • 3345 Stop 8 Rd. • Dayton, OH 45414

98-2004

Rev. H

TABLE OF CONTENTS

SECTION 1, GENERAL INFORMATION ................................................................................................................ 1

1.1 INTRODUCTION ................................................................................................................................... 1

1.2 ELETRICAL LEAKAGE STANDARDS .................................................................................................. 2

1.3 CAUTIONARY SYMBOLS .................................................................................................................... 3

SECTION 2, TECHNICAL INFORMATION ............................................................................................................. 4

2.1 THEORY OF OPERATION ................................................................................................................... 4

2.2 SPECIFICATIONS ................................................................................................................................ 5

2.3 SPECIFIC ENVIRONMENTAL/TRANSPORT CONDITIONS ANTICIPATED ...................................... 6

2.4 TEMPERATURE CORRECTED ROS PRODUCTION RATES ............................................................ 7

SECTION 3, COMPONENTS AND FLOW SCHEMATICS ..................................................................................... 8

3.1 ROS EXTERNAL VIEW ........................................................................................................................ 8

3.2 ROS INTERNAL VIEW ........................................................................................................................ 10

3.3 DI POLISHER EXTERNAL FRONT VIEW .......................................................................................... 12

3.4 STORAGE TANK ................................................................................................................................ 14

3.5 ELECTRICAL DIAGRAM .................................................................................................................... 18

3.6 SIDE ENTRY HOOD ........................................................................................................................... 18

3.7 FLUID DIAGRAM ................................................................................................................................ 19

SECTION 4, INSTALLATION ................................................................................................................................ 20

4.1 GENERAL INSTALLATION ................................................................................................................. 20

4.2 ROS INSTALLATION .......................................................................................................................... 20

4.5 DI POLISHER INSTALLATION ........................................................................................................... 21

4.6 STORAGE TANK INSTALLATION...................................................................................................... 22

SECTION 5, SYSTEM START-UP ....................................................................................................................... 23

5.1 PT401 PRIMING PROCEDURE ......................................................................................................... 25

5.2 REFILLING PT401 .............................................................................................................................. 26

5.3 PT401 ANTISCALANT SETTINGS ..................................................................................................... 26

SECTION 6, SYSTEM OPERATION .................................................................................................................... 27

6.1 OPERATION ....................................................................................................................................... 27

6.2 BYPASS PROCEDURE ...................................................................................................................... 27

SECTION 7, MONITORING .................................................................................................................................. 28

SECTION 8, MAINTENANCE ............................................................................................................................... 29

8.1 ROS NORMAL MAINTENANCE ITEMS ............................................................................................. 29

8.2 DI POLISHER RESIN PACK EXCHANGE ......................................................................................... 31

8.3 DI POLISHER RESIN PACK REGENERATION ................................................................................. 32

SECTION 9, ALARMS ........................................................................................................................................... 33

9.1 ROS OPERATING STATUS MESSAGES & ALARMS....................................................................... 33

SECTION 10, STANDARD SETPOINT TABLE .................................................................................................... 34

SECTION 11, OPTIONAL DISINFECTION ........................................................................................................... 35

11.2 A WORD ABOUT HYDROGEN PEROXIDE/PEROXYACETIC ACID ................................................ 37

11.3 SILEX DISINFECTION ........................................................................................................................ 38

11.4 TANK DISINFECTION ........................................................................................................................ 39

SECTION 12, CLEAN IN PLACE (CIP) ................................................................................................................ 40

SECTION 13, TROUBLESHOOTING GUIDE ....................................................................................................... 42

SECTION 14, SPARE PARTS LIST ..................................................................................................................... 47

SECTION 1, GENERAL INFORMATION

1.1 INTRODUCTION

This system is designed to pretreat and purify water for use in healthcare applications. The
system is shipped completely assembled with required and optional water treatment
components. This Operation Manual was written for the ROS model with storage tank and
DI polisher. Your ROS 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 Operations 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 standard 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 Operations Manual should be read before operating or
servicing the system. This Operations Manual should then be kept near the system and used
as a reference and troubleshooting guide.

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.

Life Expectancy of Components:

The 2 Carbon Cartridge Filters will last for up to 700 hours depending upon the content of the
incoming water. These should be changed whenever chlorine breakthrough occurs.

The PT401 anti-scalant should be refilled every 700 hours as well.
DI resin packs should be changed whenever the quality indicator light changes from green to

red.

Safety Features

The ROS is equipped with several safety features for the benefit the user. They consist of
the following:

Color-coded inlets and outlets are on the membrane assemblies to avoid mix-ups.
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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1.2 ELETRICAL LEAKAGE STANDARDS

ROS ELECT

RICAL

ANSI / AAMI SAFE

The AmeriWater ROS water treatment system complies with the National Electrical
Standards for Product Safety and Construction.

During the design process the individual components were tested and the initial test results
for the electrical components (pump, solenoid valves, and controller) were all less than 0.1
microampere leakage.

Completed product testing with the ROS functioning resulted in the following ROS standards
being set.

TEST PERFORMED

LEAKAGE STANDARD

LIMITS STANDARDS

Normal Polarity <10 microamperes 100 microamperes
Neutral Open (single fault) <100 microamperes 500 microamperes
Ground Open (single fault) <100 microamperes 500 microamperes
Ground & Neutral Open * <200 microamperes Not Required
* Although this test is not required by ANSI/AAMI, it is still performed as an additional safety measure.

The cabinet of the ROS is PVC plastic for additional operator safety.
The ROS is compliant with ANSI/AAMI ESI-1993, Safe Current Limits for Electro medical

Apparatus. All major components of the ROS (controller, pump, solenoid valve, antiscalant
pump) as well as other components are UL listed.

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.

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1.3 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!

120 15

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

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SECTION 2, TECHNICAL INFORMATION

2.1 THEORY OF OPERATION
ROS:

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”.

DI Polisher:

This system is designed to polish the ROS product water in order to provide purified water
used in laboratory applications. The facility’s tap water first passes through the ROS, then
enters the first deionizer column (worker) where the deionizer resin removes chemical
contaminants from the water through an ion exchange process. The water then passes into
the “polisher” column. As water leaves the polisher, the purified water passes through a
200,000-Ohm resistivity monitor with alarm and on to the storage tank.

Storage Tank:

The storage tank is equipped with high and low level float switches, which will turn the
reverse osmosis unit off when the water reaches the predetermined cutoff point and turn the
ROS on when the tank is drained to the low level float. The distribution pump on the storage
tank will cycle whenever the internal pressure of the pump drops below 29 PSI or there is
flow greater than 0.3 GPM.

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2.2 SPECIFICATIONS

Prefilter gauge pressure (when the

Pump pressure

–

Minimum, Maximum, and Ideal
incoming water temperature

Min = 41° F (5° C) Max = 90° F (33° C)
Ideal Temperature = 77° F (25° C)

Incoming water pH range 6.5 – 8.5

ROS is running) –
Minimum
Maximum

Minimum
Maximum

20 PSI
50 PSI (Pounds per Square Inch)

100 PSI
160 PSI

Water pressure to point of use less than 35 PSI

Maximum output of product water
@ 77°F (25°C), TDS<1000 ppm of
NaCl, & pump pressure of 150 PSI

ROS - 800 GPD (3000 LPD) using two
membranes (2.5” dia x 21”)

(Gallons Per Day / Liters Per Day)

ROS Feed = 3/4" Female GHT

ROS Product = 3/4" Male GHT

Connections

ROS Reject to Drain = 3/8" hose

(Garden Hose Thread)

Distribution Pump 3/4” FPT & MPT

Electrical Requirements

Tank High / Low Connection

Dimensions Installed

Shipping Weight

Operating Weight

115V/60Hz/20A GFI (Ground Fault Interrupter)

24 V max voltage, 500 mA max current

62”L x 30” D x 62” H

467 LBS
935 LBS

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2.3 SPECIFIC ENVIRONMENTAL/TRANSPORT CONDITIONS ANTICIPATED
ENVIRONMENTAL CONDITIONS ANTICIPATED

This device is intended to be used under the following conditions:
Indoor use;
Altitude up to 2000 m;
Temperature between 5°C and 40°C;
Maximum relative humidity 80% for temperatures up to 31°C decreasing linearly to 50%

relative humidity at 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.

TRANSPORT CONDITIONS ANTICIPATED

Altitude up to 2000 m;
Temperature between 5°C and 40°C;
Maximum relative humidity 80% for temperatures up to 31°C decreasing linearly to 50%

relative humidity at 40°C;

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2.4 TEMPERATURE CORRECTED ROS PRODUCTION RATES

Chemical Feed

System

Membrane Scale Control

Not to exceed 40 ppm

ROS membrane performance is affected by water temperature. The Product Water Flow
Rate and Output decreases as the temperature of the Incoming Tap Water decreases. The
chart below provides both Total Product Output (in Gallons Per Day) and Product Flow Rate
(in Gallons Per Minute).

• Measure your Incoming Tap Water temperature using an external temperature gauge
(NOTE: the temperature reading on the controller LCD display represents the Product
Water temperature).

• Follow the chart across to find your Temperature Corrected Product Water Total
Output and Flow Rates.

ROS TEMPERATURE CORRECTED PRODUCTION RATES

Temperature

F

40
45
50
55
60
65
70
75

Temperature

C

4.45

7.23

10.01

12.79

15.57

18.35

21.13

23.91

Total Output

GPD

416
468
519
571
623
675
727
779

PT401 Antiscalant/Scale Inhibitor

Contaminants

Flow Rate

GPM (cc/min)

0.29 (1097 cc/min)

0.33 (1249 cc/min

0.36 (1362 cc/min)

0.40 (1514 cc/min)

0.43 (1627cc/min)

0.47 (1778 cc/min)

0.50 (1892 cc/min)

0.54 (2043 cc/min)

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SECTION 3, COMPONENTS AND FLOW SCHEMATICS

3.1 ROS EXTERNAL VIEW

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IDENTIFICATION OF COMPONENTS (ROS EXTERNAL VIEW)

1. PRODUCT GPM - Flowmeter that measures the flow of the Product Water in gallons

per minute (GPM) and liters per minute (LPM).

2. FLUSH VALVE - When the ROS is in operation (feeding a point of use), the valve
must be in the OPERATION position. Change to the FLUSH position to bypass the
flow control, and allow a faster flow of water to drain.

3. CHLORINE SAMPLE PORT – Valve with nozzle to let small amounts of water out to
test for the presence of chlorines before the ROS membrane.

4. PRODUCT SAMPLE PORT - Nozzle with valve to let a small amount of water out to
test the PRODUCT WATER quality.

5. PRODUCT WATER HOSE - Hose transmitting purified water from ROS system to the
point of use.

6. REJECT WATER TO DRAIN - Hose carrying wastewater to drain.

7. INCOMING TAP WATER - Hose feeding tap water into the ROS.

8. HOSPITAL GRADE POWER CORD - must be connected to a single phase, 3-

conductor type, hospital grade receptacle with a ground fault interrupter (GFI) at 115V,
20amp, and 60Hz.

9. PAA CONNECTION - Quick connect that the PAA CONTAINER’S tubing is connected
to the ROS connector for disinfection.

10. PUMP PSI - Gauge that measures the primary feed pressure (in pounds per square
inch) from the pump to the ROS membrane.

11. PREFILTER OUTLET GAUGE - Gauge that measures the pressure (in pounds per
square inch) of the water after going through and out the micron prefilter. The outlet
pressure should never be greater than 10 psi different from the PREFILTER INLET
GAUGE.

12. PREFILTER INLET GAUGE - Gauge that measures the pressure (in pounds per
square inch) of the INCOMING TAP WATER going into the micron prefilter.

13. SIDE ENTRY HOOD - External wire installation for float level switches.

14. ROS CONTROLLER - Control mechanism for the ROS.

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3.2 ROS INTERNAL VIEW

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IDENTIFICATION OF COMPONENTS (ROS INTERNAL VIEW)

15. CARBON CARTRIDGE FILTERS – Dual 10-micron carbon cartridges for removal of

chlorine.

16. MEMBRANES – Spiral-wound, thin film, composite membranes for reverse osmosis.

17. PT401 ANTISCALANT/SCALE INHIBITOR - Plastic bottle filled with 2 1/2 gallons of

PT401 solution to prevent the ROS membrane from scaling. The plastic bottle should
be refilled with PT401 solution when it reaches the half-full level.

18. PUMP - Provides the pressure for the ROS. The ROS ON-OFF switch controls the
pump motor.

19. PT401 FEED PUMP (Optional) - Injects PT401 Antiscalant/Scale Inhibitor solution at
a predetermined dosage based on a water analysis. The PT401 pump runs when the
main pump runs.

20. CLEAN IN PLACE SWITCH (ALARM FAULT OVERRIDE) - When the Clean In Place
(CIP) switch is placed to the ON position, all ROS fail-safe modes are disabled for low­pressure membrane cleaning with the optional AmeriWater Clean In Place system
(P/N 00CIP1). The controller will display a warning that the CIP mode is active.

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3.3 DI POLISHER EXTERNAL FRONT VIEW

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IDENTIFICATION OF DI POLISHER COMPONENTS

21. AIR VENT SCREWS – Vents provided to break the vacuum seal to facilitate resin

changes.

22. 200,000 OHMS QUALITY LIGHT – Light with alarm that will indicate when the water is

outside of the limit.

23. DRAIN VALVES – To allow for draining each column of the DI Polisher individually.

24. WATER INLET – Inlet for water from the ROS.

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3.4 STORAGE TANK

EXTERNAL FRONT VIEW

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IDENTIFICATION OF STORAGE TANK COMPONENTS (FRONT VIEW)

25. WATER INLET – Connection for the purified water into the tank.

26. DISTRIBUTION PUMP – Pump that is used to distribute water to the system whenever

the internal pressure drops to 29 PSI or there is greater than 0.3 GPM flow.

27. SYSTEM OUTLET HOSE – Hose that is provided to change the system outlet from ¾”

FPT to ¾” MPT.

28. BYPASS QUICK CONNECT – Used to allow untreated water to completely bypass the

system in the event of downtime.

29. RETURN FROM LOOP – Connection that can be utilized to allow the loop to re-circulate

back into the storage tank to minimize opportunities for bacteria growth. The return flow
control on this is 3 GPM.

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STORAGE TANK EXTERNAL SIDE VIEW

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IDENTIFICATION OF STORAGE TANK COMPONENTS (SIDE VIEW)

30. HIGH LEVEL FLOAT – Sends a signal to the RO when the tank is full to stop water

purification.

31. LOW LEVEL FLOAT – Sends a signal to the RO when the predetermined low level has

been breached to have the RO begin water purification.

32. SIDE ENTRY HOOD – Provides connection between storage tank floats and the ROS.

PUMP CONTROL PANEL

2

3

4

5

6

1. ON/OFF BUTTON – Starts and stops the pump. The button can also be used to

manually reset an alarm condition (press once to reset, press once more to start).

2. POWER INDICATOR LIGHT – Indicates that the pump is ready for operation (green).

When the light is on, the pump will start automatically when water is consumed and
stop a few seconds after the water consumption has ceased.

3. POWER INDICATOR LIGHT – Indicates that the pump is in standby (red).

4. PUMP ON (GREEN) – Indicates that the pump is running (green).

5. AUTO RESET (GREEN) – Indicates that the auto reset function is active. When on,

the pump will automatically attempt to restart every 30 minutes after an alarm / fault
over a period of 24 hours, after which the pump will remain in an alarm condition.
When off, the pump will not restart after an alarm / fault. The auto-reset function can be
activated / deactivated by pressing the ON/OFF button for 5 seconds.

6. ALARM (RED) – Indicates that the pump is in and alarm state. Manual resetting is

possible by pressing the ON/OFF button.

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3.5 ELECTRICAL DIAGRAM

3.6 SIDE ENTRY HOOD

The external wire connection for High/Low Tank signals has a maximum voltage of 24 V and
a maximum current of 500 mA. The connection allows signals from float switches in the
storage tank to be sent to dry contacts within the ROS controller. The high tank float signals
the RO to shut off in a tank-full condition, and the tank low float signals the RO to turn on
when the water level in the storage tank is low. Installation of float wiring should be
conducted by an AmeriWater service representative.

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3.7 FLUID DIAGRAM

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SECTION 4, INSTALLATION

CAUTION: Local plumbing and electrical codes must be observed.

4.1 GENERAL INSTALLATION

1. The high purity water system can be installed with up to 50’ of pipe from the point of
use.

a. Subtract 2’ from the 50’ length for each elbow in the pipe.
b. Pipe size and the number of worker/disinfector/sterilizers will also affect the

distance.

2. If there is a need for more pressure or flow rate, the high flow storage tank should be
considered.

4.2 ROS 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, 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 ROS be placed on an electrical supply with emergency backup.

2. The ROS 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.

To avoid electrical shock, always unplug the ROS system before opening
the face of the electrical controller.

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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.

5. The ROS system is 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 @ 5 GPM (while the ROS is in operation, with flow).
Maximum feed pressure is 50 PSI.

9. Lock the two front casters so that the ROS will remain stationary during startup.

10. Remove the plugs from the PRODUCT WATER, REJECT WATER TO DRAIN, and
INCOMING TAP WATER fittings on the front of the ROS.

11. Connect the INCOMING TAP WATER, PRODUCT WATER and REJECT WATER TO
DRAIN hoses to the appropriate fittings on the ROS. All hoses should run to the right
side of the ROS. This will allow you to move the ROS forward to access the rear
panel.

CAUTION: To ensure proper assembly, tubing extension MUST be fully inserted into

the fitting body to the tube stop.

12. Open the back cover and remove the gray packing foam between the PT401
CONTAINER and the cabinet wall.

13. Plug the power cord into a dedicated 115-volt, 20-amp GFI receptacle.

4.5 DI POLISHER INSTALLATION

1. Locate the DI Polisher to the right of the ROS, just before the storage tank.

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4.6 STORAGE TANK INSTALLATION

1. Locate the storage tank on a firm, level foundation. For seismic requirements, install
(4) 5/8” diameter, HILTI KB-TZ Expansion anchors through the 4 holes on the pads to
anchor into the ground. A minimum of 4 threads for each anchor must be below the
concrete prior to application of 60 ft-lbs of torque.

2. Connect the DI Polisher outlet hose to the storage tank’s inlet.

3. Connect the discharge from the pump to the distribution piping.

4. Run the float – switch quick disconnect to the ROS and lock in place.

5. Prime the pump by loosening the priming plug on
the top of the pump and opening the valve from the
tank to allow 1.2 – 1.5 gallons of water to fill the
pump. Replace the priming plug.

6. Plug the pump directly into a dedicated 115-volt,
20-amp GFI receptacle.

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SECTION 5, SYSTEM START-UP

1. Connect the ROS INCOMING TAP WATER hose to the potable cold water supply
using the Incoming Tap Water hose and fittings supplied. If blending both warm and
cold water to improve product flow rate, do not exceed 90° F (33° C).

2. The REJECT WATER TO DRAIN hose coming out of the ROS 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.

3. The PRODUCT WATER hose should also be secured to the sink or drain.

4. Open the back cover, turn the CIP SWITCH to off and verify that the carbon cartridges
are installed.

5. Turn on the potable cold water supply to the ROS.

6. Turn on the ROS and place the FLUSH VALVE in the FLUSH position. Allow ROS to
run in FLUSH for 30 minutes.

NOTE: The ROS conductivity alarm may sound, which is normal when it is in FLUSH.

Press the ALARM SILENCE key on the RO controller to silence the alarm. The
alarm will restart after a 3 minute delay.

7. After flushing for 30 minutes, turn the FLUSH VALVE to OPERATION position.

8. Run the product water to drain for at least 10 minutes.

9. Verify that the PRODUCT GPM FLOWMETER indicates at least 0.25 GPM.

10. Refer to the Operation Log in Section 7.0 MONITORING. Complete the log; making
sure that the system is operating within all the required ranges.

WARNING: Do not use the RO until all specifications are met.

11. When the log shows that all start-up conditions are met, the system is now ready for
use. Press the POWER key (the display will show STANDBY). Connect the
PRODUCT WATER hose to the DI Polisher inlet.

12. Install the resin packs in the DI Polisher

a) Lock the front wheels. Remove the cover

plates by unscrewing the four black knobs
on each plate. To break the seal between
the cover plates and the upper plates, use a
slotted screw driver in the pry notch located
in the top of each upper plate. Open the
drain valve at the bottom of each column.

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b) Remove the resin pack from the shipping box and open the tied end of the

plastic sleeve. DO NOT remove the resin pack from the plastic sleeve at this
time.

c) Stretch the resin pack over your arm

to elongate the pack, and feed it into
the column allowing the pack to slide
out of the plastic sleeve. Save the
plastic bag for future exchange.

d) Verify that the O-ring is clean and in

place and replace the cover plates.
Tighten the black knobs evenly by
turning the knobs at opposite
corners at the same time. Repeat for the other two corners.

CAUTION: Failure to tighten the knobs completely may cause the cover plate to

separate from the system when pressurized.

e) Close the drain valve at the bottom of the column.

AIR VENT

f) Repeat steps a. through e. for each of the columns.

13. Open the air vents located on the top of the cover plates and
turn on the water supply and the ROS. Tighten the air vents
closed when water begins to escape through the vents.

14. Ensure that the DI Polisher quality light is plugged into a GFI
receptacle.

15. When the resin is changed, the light may indicate red
initially, but should switch to green, indicating good quality.

16. Lock the casters on the DI Polisher and connect the product hose to the storage tank
inlet.

17. Verify that the distribution pump is plugged into a dedicated 115-volt, 20-amp GFI
receptacle.

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5.1 PT401 PRIMING PROCEDURE

AmeriWater RO products featuring the PT401 antiscalant system are equipped with a priming
valve. The following procedure should be followed during the initial start up of the ROS
system, and whenever the PT401 pump loses its prime:

1. Verify that the RO is on and running.

2. Be sure the injection pump’s suction line is immersed in solution in the PT401
container.

3. Press the ON key to turn on the PT401 injection pump.

4. Press the “UP” key to increase the STROKE RATE up to approximately 150 to 200, or
the “DOWN” key if already greater than 200.

5. Remove the lid form the container and verify that there is discharge of PT401.

6. Close the adjustment knob completely by turning clockwise until the knob stops,
making sure there is no liquid flow out of the air bleed tubing.

If the pump does not prime, repeat the foregoing
steps.

Once the pump has been primed, and is
pumping the chemical through the head into the
water stream, adjust the stroke rate to “5”.

At the stroke rate of 5, the PT401 injection pump
will put about 150 milliliters (approximately 5
liquid ounces) per hour into the ROS incoming
water stream.

Repeat these steps as necessary when the
system is started after sitting for extended
periods of time or the PT401 Bottle is empty and
air has drawn into the pump. The priming may
not take as long as the initial time.

WARNING: Overdosing PT401 will adversely affect (blind) the membrane causing a

decrease and/or loss of permeate flow.

WARNING: If softened water is supplied, turn off the PT401 system by depressing the

on/off button on the chemical feed pump and emptying the PT401 jug.

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98-2004, Healthcare RO2 Manual, Rev. H

5.2 REFILLING PT401

HARDNESS (Grains Per Gallon)

STROKE SETTINGS

The amount of PT401 in the container should be checked weekly. When it is less than half
full, you should add more PT401.

Remove the cap from the PT401 Container. It is not necessary to remove the rubber stopper
with the hose; this will break the prime of the PT401 pump. Refill the bottle with new PT401
purchased from AmeriWater (P/N 95810125, sold in (4) 1 gallon containers). Close the bottle
with the cap. If the PT401 Container is ran dry, follow the priming procedures above.

5.3 PT401 ANTISCALANT SETTINGS

The digital readout on the PT401 injection pump can be adjusted from 0 to 360 strokes per
minute. Based on the hardness of the feed water, the following stroke settings are
recommended:

1-6 GPG 2

7-20 GPG 3

21-40 GPG 4

For water with hardness greater than 40 GPG, contact AmeriWater for consultation

1-800-535-5585

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98-2004, Healthcare RO2 Manual, Rev. H

SECTION 6, SYSTEM OPERATION

6.1 OPERATION

Once the system has been started, the ROS will continue to make water until the high-level
float switch is tripped on the storage tank. At this point, the ROS will be placed into standby
(tank full) until the low-level float switch is tripped.

Once the low level float is tripped, the ROS will re-initialize and begin to produce water again.
In the event that the conductivity is above the pre-determined set-point, the ROS will

automatically divert to drain and an alarm will sound.
The storage tank will still operate as normal, however, there will be no water flow from the

ROS through the DI Polisher until the alarm condition is corrected.

6.2 BYPASS PROCEDURE

1. Turn off the POWER to the ROS and Distribution Pump.

2. Shut off the water supply to the system.

3. Remove the ROS water inlet hose from the source.

4. Retrieve the bypass hose and install to the incoming water supply.

5. Connect the CPC
connector into the fitting
just after the pump on the
storage tank.

6. Turn on the water to begin
bypass operation.

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98-2004, Healthcare RO2 Manual, Rev. H

SECTION 7, MONITORING

Fill out the monitoring log prior to each use. Having this information available will help to
quickly diagnose issues related to performance. Failure to carry out the daily monitoring and
maintenance at the indicated intervals will result in reduced performance of the ROS system
and may void the warranty.

1) DATE
RO PERFORMANCE (DURING WATER FLOW)

2) Temperature (41ºF - 90ºF)

3) Product flow (0.25 GPM)

4) Pump PSI (100 - 160 PSI)

5) Filter Pressure Drop (maximum 15 PSI)

6) Hour Meter Reading

7) Chlorine Test (maximum 0.1 PPM)

8) Product Water Quality Reading

9) Verify light on DI Polisher is Green

10) Verify that the distribution pump is not in alarm

EXCHANGE

11) Carbon Block Filter Cartridges

12) Clean or Replace the Membrane

13) Add PT401 Antiscalant

14) DI Polisher Resin Change

INITIALS

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98-2004, Healthcare RO2 Manual, Rev. H

SECTION 8, MAINTENANCE

WARNING: If any component of the water treatment system is changed or replaced,

the user should conduct appropriate tests to ensure that the revised
system meets all standards to which it was initially tested.

1. AmeriWater has provided an Operation Log for the ROS system. The recorded
information may be useful in troubleshooting problems encountered with the system.

2. The DI resin, membrane and carbon cartridges are non-durable components and will
need to be exchanged periodically.

8.1 ROS NORMAL MAINTENANCE ITEMS

Preparation

1. Turn off the RO and remove from the power source.

2. Turn off the incoming tap water supply.

3. Place a container under the CHLORINE TEST PORT. Slowly open the sample port to
relieve the pressure and let the water drain.

4. Remove the access cover.

To Exchange the Carbon Block Filters:

1. Use the filter wrench to unscrew the filter housing and discard the used filter(s).

2. Partially unwrap the plastic from a brand new filter. Holding the end covered with
plastic, place the new filter in the housing. Discard the plastic after installation.

3. Screw the filter housing back on making sure the o-ring is in the groove and not
pinched. Hand-tighten, only.

To Exchange the Membrane:

1. Disconnect the fittings that secure the tubing to the sides of the membrane.

2. Remove the Unistrut clamp holding the membrane assembly.

3. Lift out the membrane assembly.

4. Compress the retaining ring on the inlet side to remove the cap and slide old
membrane out of the housing and discard.

5. Install the new membrane in the housing with the brine seal at the Inlet end of the
housing, and replace the cap and retaining ring.

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98-2004, Healthcare RO2 Manual, Rev. H

6. Connect the feed (brown) fittings at the bottom of the new membrane housing in the
same way the system was initially connected. Secure the new membrane assembly
into place, and connect the remaining fittings at top of membrane housing (Reject =
red, Product = blue, Inlet = Brown).

Rinse Out Cycle

After the exchange is complete, it is important to put the RO through a rinsing out cycle to
flush the preservative out of the new membrane.

1. Put the PRODUCT WATER hose at a sink or drain.

2. Turn the FLUSH VALVE to the FLUSH position. The Pump pressure will be lower
than normal during this rinse out cycle.

3. Turn on the RO and allow water to run through the system for a minimum of 30
minutes until the water is clear. This will rinse the preservative out of the new
membrane.

CAUTION: The membrane is not rinsed thoroughly until the water is clear!

4. Turn the FLUSH VALVE to the OPERATION position and allow the RO to run until the
conductivity is below the setpoint and no longer alarming. Turn off the RO.

5. Reconnect the PRODUCT WATER hose to the DI Polisher.

6. Turn on the RO. The rinse out cycle is now complete, and the RO is ready for use.

To Replenish PT401:

1. Remove the access cover, then, simply unscrew the cap on the bottle, and add the
PT401. After refill, the PT401 pump may need to be primed again.

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98-2004, Healthcare RO2 Manual, Rev. H

8.2 DI POLISHER RESIN PACK EXCHANGE

1. Turn off the water supply to the ROS system.

2. Open the air vents located in the center of the cover plates.

3. Place a container under the Drain Valves located on the bottom plates of the system.

4. Open the valves and allow the water to drain into the container. The container may be
emptied at a drain.

5. Remove the cover plates by unscrewing the black knobs located at each corner of the
cover plates.

6. Pull the exhausted resin pack part of the way out of the column and lay it over the top
of the system.

NOTE: If the Drain Valve located on the bottom plate is not open, a vacuum will be

created making it difficult to remove the resin pack.

7. Slowly pull the exhausted pack over the side of the column while sliding it out of the
column and into the plastic sleeve that it was shipped in.

8. Remove the new resin pack from the shipping box and open the tied end of the plastic
sleeve.

9. Stretch the resin pack over your arm to elongate the pack.

10. Feed the pack into the column allowing it to slide out of the plastic sleeve. Save the
plastic sleeve for the return shipment of the resin pack at the next exchange.

11. Carefully wipe the O-rings and the grooves on the top plate and cover plate to remove
any debris from the surfaces that must seal together.

12. Replace the cover plates and tighten the knobs. To ensure proper tightening and a
good seal, hand-tighten the knobs in opposite corners simultaneously. Repeat for the
other two corners.

13. Turn on the water supply to the ROS and remove trapped air by loosening the air
vents located in the center of the cover plates.

14. Tighten the air vents when water begins to escape through the vent. This ensures that
all of the air has been removed from the system and maximizes the life and efficiency
of the resin packs.

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98-2004, Healthcare RO2 Manual, Rev. H

8.3 DI POLISHER RESIN PACK REGENERATION

Regeneration certificates are used to simplify the exchange of your exhausted DI Polisher
system packs. The certificate has been purchased and will be used as payment for the resin
pack regeneration service. Simply follow these steps:

Fill out a regeneration certificate by printing your name, phone number, company and
address.
When you send each pack to AmeriWater, enclose the regeneration certificate in the box.
AmeriWater will ship you a freshly regenerated resin pack.
To order more certificates, contact the company that originally sold you the deionizer. Be
sure to keep regeneration certificates on hand to ensure uninterrupted service.
It is recommended to send the exhausted resin to AmeriWater immediately after exchange.
This will allow time for shipment and will maintain your uninterrupted supply of deionized
water.

Certificates Make Exchanging Packs a Breeze!

Fill out and enclose in box for return shipment

• NO Paperwork

• NO Phone Calls

• NO Purchase Orders

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98-2004, Healthcare RO2 Manual, Rev. H

SECTION 9, ALARMS

9.1 ROS OPERATING STATUS MESSAGES & ALARMS

The operating status of the unit is shown on the top line of the display. The following list
describes the items shown for the operating status and alarms.

STANDBY - The unit is in the STANDBY mode.
DELAY 99 - The unit is in the ROS start delay. The number is the seconds remaining before

the pump starts.
OPERATING - The RO unit is operating.
TANK FULL - The unit is shut down due to a tank full condition.
PERCENT REJECTION – Shows the % of TDS rejected by the ROS.
TEMPERATURE – Indicated the temperature of the incoming water.
CONDUCTIVITY – Measurement of the quality of the water.
PRESS FAULT - If the pressure fault input becomes active (closes) and stays active for the

delay programmed in the PF Delay Setpoint, the unit will shut down for a pressure fault. The
display will show PRESS FAULT, the alarm lamp will flash and the audible alarm will sound.
The pressure fault can be cleared by pressing the Alarm Silence/Reset key twice.

MEMB FLUSH 99 – Membrane Flush is active. The number is the minutes remaining in the
flush cycle. This setting is not normally used.

HI COND - If the Conductivity reading exceeds the limit programmed the Cond Limit Setpoint
for the delay programmed in the Cond Delay Setpoint, the alarm lamp will light and the HI
COND warning message will show on the display. This warning will clear when the
Conductivity drops below the Setpoint.

When the High Conductivity warning message is active, the ROS model will divert the
Product water to drain (through the Reject hose), until the Product water goes back into the
acceptable range.

9.2 DI POLISHER ALARMS

WATER QUALITY INDICATOR LIGHT – Will illuminate green when the water is within the
required parameters. When the light changes to red and there is an audible alarm during
normal product flow, this indicates that the resin packs will need to be exchanged. The
audible alarm can be silenced by depressing the detent on the face of the alarm.

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98-2004, Healthcare RO2 Manual, Rev. H

SECTION 10, STANDARD SETPOINT TABLE

SET POINT

FACTORY SETTING

TDS / Conductivity Limit

50

TDS / Conductivity D

elay

10

Press Fault Delay

10

Auto Reset (PSI)

0

Alarm Silence

3

TF Restart Delay

5

TF Restart

0

Flush Type

0

Flush Time

0

Flush Interval

0

Flush Mode

0

Maximum Hours

0

Expander

Mode

0

Temperature Offset

0

Temperature UOM

0

Switch Select

0

TDS / Conductivity UOM

0

C2 RANGE

4

C2 LIMIT

0

% Rejection

1

VIEWING THE SETPOINTS;

Press the LEFT ARROW key to view the set points.
Press the ALARM SILENCE/RESET key to cancel the operation.

RO Start Delay 10

TFO Time 3
Tank Low Restart 0

Current Hours 0

TDS / Conductivity Range 1

34

98-2004, Healthcare RO2 Manual, Rev. H

SECTION 11, OPTIONAL DISINFECTION

AmeriWater recommends that all HCRO systems should be disinfected at least annually.
The following sections will outline the disinfection steps for the RO, optional Silex deionizer
and Storage Tank.

11.1 RO DISINFECTION

1. Switch off the RO by pressing the POWER key (the display will show STANDBY).

2. Disconnect the RO PRODUCT WATER hose from the next point of use.

3. Place the PRODUCT WATER hose with the REJECT WATER TO DRAIN hose at a
sink. Secure PRODUCT WATER hose in place so that the entire length of the hose
will “flood” during disinfection.

4. Put on rubber gloves, apron, and goggles.

5. Unscrew the cap assembly of the PAA container.

6. Add 150 ml of 100% hydrogen peroxide/peroxyacetic acid disinfecting solution to the
PAA Container and fill with water to the red line. (You may use tap water or treated
water). Screw the cap assembly back on the PAA container.

CAUTION: Exposure to hydrogen peroxide/peroxyacetic acid (PAA) concentrate or

solution may cause severe chemical burns to skin or eyes. Additional
information regarding PAA is found in this section, on your PAA bottle, and
the Material Safety Data Sheet. Please read carefully before using.

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98-2004, Healthcare RO2 Manual, Rev. H

7. Lightly shake or tilt the container to mix the solution.

8. Connect the PAA tubing to the PAA connection on the front of the RO.

9. Turn the FLUSH VALVE to the FLUSH position.

10. Turn on the feed water supply to the RO.

11. Press and hold the LEFT ARROW key, and then, press the RIGHT ARROW key. This
will access the DISINFECT MODE. The controller display will show DISINFECT
ENABLED, and then the keys can be released.

12. Press and hold the ENTER key. Pressing and holding the ENTER key will turn on the
Disinfect Draw function and THE DISPLAY WILL READ DISINFECT ENABLED
DRAW. Continue to hold the ENTER key, until all of the PAA is drawn in.

13. If the PAA tubing begins to suck air, immediately release the ENTER key. Place the
FLUSH VALVE in the OPERATE position. Avoid extra time running because PAA will
be diluted.

CAUTION: Avoid sucking air when the container is near empty.

NOTE: The ENTER key must be held until the PAA is drawn container is
nearly drawn empty into the RO.

a. Avoid stopping and starting the disinfect function which may cause a

thermal overload of the RO pump. If a thermal overload occurs, it will
automatically reset from 1 to 5 minutes – wait until the pump overload
resets to resume the PAA draw.

b. Releasing the ENTER key may cause the system to lose its prime

preventing all of the disinfectant from being drawn into the MRO.

c. Approximately ¼” of the solution will remain in the bottom of the plastic

container. This is normal and may be emptied down the drain after the
entire process is complete.

14. At this point, the RO is filled with the hydrogen peroxide/peroxyacetic acid disinfecting
solution. To ensure that this solution has passed through the system, use a PAA test
strip (Peracid Test Strips, P/N 97HP20401) at the REJECT WATER TO DRAIN hose;
the results should be at least 1% (500 ppm). Use another PAA test strip (Peracid Test
Strips, P/N 97HP20401) at the PRODUCT WATER hose; the result here should be at
least 0.5% (250 ppm).

NOTE: You may need to press the ENTER key to sample the flow being discharged

from the REJECT WATER TO DRAIN and PRODUCT WATER hoses. If the test
strip does not show PAA disinfecting solution at the specified levels in the
Reject Water and Product Water, press the ENTER key again to continue flow;
repeat the PAA test until both test positive (at the specified levels). If the test
strip still does not show the disinfecting solution at the required levels, repeat
disinfect draw procedure until the tests show positive at the required levels.

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98-2004, Healthcare RO2 Manual, Rev. H

15. Allow the PAA mixture to soak in the RO for at least 60 minutes.

WARNING: Soaking longer than five hours may cause damage to the membrane.

16. After the soaking time has elapsed, turn on the RO by pressing the ALARM/SILENCE
RESET to restart the RO in the operating mode. Allow the machine to run at its
current setting for at least 15 minutes.

17. After rinsing the RO in the normal operating mode for 15 minutes (minimum) turn the
FLUSH VALVE to the FLUSH position, and allow the RO to run for another 15
minutes.

18. After the time has elapsed running in the FLUSH position, return the FLUSH VALVE to
the OPERATION position, and continue rinsing for 15 minutes or until the water from
the PRODUCT WATER hose, REJECT WATER TO DRAIN hose and the product
sample port test negative for PAA.

WARNING: Continue rinsing and testing until both test strips show a negative result

(no color change) to ensure that there is less than 3 PPM of PAA in the
system. AmeriWater recommends using Renal Check PX Test Strips (P/N
97PX20501).

19. Disinfection is now complete. Press the POWER key to turn off the RO. The display
will show STANDBY.

11.2 A WORD ABOUT HYDROGEN PEROXIDE/PEROXYACETIC ACID

Do not use hydrogen peroxide/peroxyacetic acid concentrate (PAA) after the expiration date.
Using outdated PAA concentrate may cause incomplete disinfection.

PAA loses effectiveness if not kept out of direct sunlight and/or the cap is not tightly sealed.
Using ineffective disinfecting solution will cause incomplete disinfection.

Using less than the required volume of PAA will result with incomplete disinfection.

Disposal of Outdated Hydrogen Peroxide/Peroxyacetic Acid:

Supplies Needed - a sink with a supply of tap water

- rubber gloves, lab apron, and goggles

- a supply of paper towels

1. Put on rubber gloves, apron and goggles.

CAUTION: Exposure to PAA concentrate or solution can cause severe chemical burns

to skin or eyes.

2. Start a flow of cold tap water to dilute the PAA as it flows down the sink drain.

3. Slowly and carefully pour the disinfecting solution down the drain, taking care to avoid
spills, splashes, or breathing the vapors.

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98-2004, Healthcare RO2 Manual, Rev. H

4. Rinse the emptied PAA container with tap water to remove all traces of the chemical.

Rinsing emptied containers is needed to protect waste handlers from accidental
exposure to the chemical.

5. Rinse the sink surfaces with tap water to remove residual disinfecting solution and to
flush the chemical from the sink traps.

6. Discard the emptied and rinsed container in a waste receptacle or set aside for
recycling.

7. Inspect the area for spilled or dripped disinfecting solution. Wipe up small spills with a
damp paper towel. Larger spills should be either flushed to drain with water or
removed with a water bucket and floor mop.

WARNING: Verify that there is no chlorine (bleach) in the water bucket or floor mop.

Chlorine (bleach) will cause a severe chemical reaction when it comes in
contact with hydrogen peroxide/peroxyacetic acid concentrate!

8. Rinse rubber gloves with tap water to remove any residues from handling.

9. Remove and return rubber gloves, apron, and goggles to their storage area.

11.3 SILEX DISINFECTION

1. Turn off the water supply to the Silex system and remove the discharge from the
storage tank.

2. Remove the resin packs from the system.

3. Pour 5 oz (150 mL) of PAA into each Silex column.

4. Close all drain valves and sample ports and open the air vents located in the center of
the top plates.

5. Turn on the water supply to the Silex and allow it to fill with water until the presence of
PAA can be detected at the outlet of the system. Verify the concentration of PAA at
the outlet using a high level concentration PAA test strip (P/N 9778339-000).

6. Turn off the water supply and allow the system to soak for 1 hour.

7. After the soak time, drain the water out of the system by placing a container under the
drain valves and opening the valves.

8. Close all valves and turn on the water supply to the system.

9. Direct the product water to a drain and allow system to flush until PAA is no longer
detected. (Use low-level PAA test strips, P/N 9778338-000, to test for residual PAA).

10. Drain the water out of the system by placing a container under the drain valves and
opening the valves.

11. Close all drain valves and sample ports and open the air vents located in the center of
the top plates.

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98-2004, Healthcare RO2 Manual, Rev. H

12. Replace the resin packs and return system to service.

11.4 TANK DISINFECTION

1. The storage tank can be disinfected using household bleach or a peracetic acid
disinfectant (PAA).

WARNING: Never allow Chlorine (bleach) to come into contact with PAA. Doing so

will cause a severe chemical reaction!

a. For a 55 gallon tank, fill to the RO shut-off level mark and add 1 quart of

household bleach or PAA.

b. For a 100 gallon tank, fill to the RO shut-off level mark and add 2 quarts of

household bleach or PAA.

2. If your system is installed with a recirculation loop back to the storage tank, recirculate
the system for 30 minutes.

3. If your system is a demand feed (where the pump only operates when your equipment
calls for water), connect the bypass hose to the quick disconnect and place the other
end of the bypass hose into the storage tank, recirculate for 30 minutes.

4. After recirculation, drain the tank, fill with RO water, and recirculate for 5 minutes.

5. Drain and refill the tank, and recirculate for 5 minutes. Use a chlorine test strip to
verify the residual chlorine level or a PAA test strip to verify the residual PAA level.

6. Repeat step 4 and 5 until the test strip indicates a residual level at or below 1.0 ppm.

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98-2004, Healthcare RO2 Manual, Rev. H

SECTION 12, CLEAN IN PLACE (CIP)

1. Move the CLEAN IN PLACE SWITCH (inside the RO on
the back of the controller) to the ON position.

To avoid electrical shock, always unplug the ROS
system before opening the side panel or the face of
the electrical controller.

2. Place the FLUSH VALVE in the FLUSH position.

3. Connect the RO PRODUCT WATER hose to the
PRODUCT RETURN connection (female garden hose
thread) on the CIP Cleaning Drum.

4. Connect the RO REJECT TO DRAIN HOSE to the REJECT RETURN connection
(hose barb) on the CIP Cleaning Drum.

5. Connect the RO INCOMING TAP WATER HOSE to the CIP PUMP OUTLET (male
garden hose thread).

6. Leave the micron filter in the filter housing, but
remove the carbon block..

ALARM

ALARM

POWER

SILENCE/

ENTER

RESET

S150

7. Add 1 cup of AmeriClean B (base cleaning) to
the CIP Cleaning Drum and fill with RO water (if
available). Stir until dissolved.

8. Plug in the CIP Pump and turn on the RO.
Verify recirculation flow inside the cleaning

  

 

⌧  

  

drum.

9. Allow the system to recirculate the cleaning
solution for 30 minutes.

10. Turn off the RO and the CIP Pump. Allow the system to soak for 30 minutes.

11. Turn on the RO and CIP Pump and allow them to run an additional 5 minutes.

12. Turn off the RO and CIP Pump.

13. Disconnect the RO REJECT TO DRAIN HOSE and direct it to a drain.

14. Turn on the RO and CIP Pump and run to drain until the CIP Cleaning Drum is
emptied.





 

 

 

 
 





15. Turn off the RO and CIP Pump and fill the CIP Cleaning Drum with approximately 2
gallons of clean water.

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98-2004, Healthcare RO2 Manual, Rev. H

16. Connect the RO REJECT TO DRAIN HOSE to the REJECT RETURN connection on
the CIP Cleaning Drum.

17. Turn on the RO and CIP Pump and allow the water to recirculate for at least 1 minute.

18. Turn off the RO and CIP Pump and disconnect the REJECT TO DRAIN HOSE from
the CIP Cleaning Drum. Direct the REJECT TO DRAIN HOSE to a drain.

19. Turn on the RO and CIP Pump and continue running to drain until the CIP Cleaning
Drum is emptied.

CAUTION: Verify that the AmeriClean B has been thoroughly rinsed from the system

prior to proceeding to the next step. Mixing the chemicals may result in
an exothermic reaction that may damage the RO+ system.

20. Repeat steps 7 to 19 using AmeriClean A (acid cleaning) and then proceed to step 21.

21. Disconnect the RO hoses from the CIP system and run the PRODUCT WATER hose
and REJECT TO DRAIN hose to a drain. Connect the INCOMING TAP WATER hose
to a water supply.

22. Replace carbon block filter and replace micron filter, if necessary.

23. Turn on the feed water supply and the RO, and allow running for 10 minutes.

24. Turn the TEMPORARY FLUSH VALVE to the OPERATION position, and continue
running to drain until the conductivity drops below the setpoint (not in alarm).

WARNING: DO NOT place the RO in service until all operational parameters are within

specification. Consult the STARTUP LOG to verify that all specifications
are met.

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98-2004, Healthcare RO2 Manual, Rev. H

SECTION 13, TROUBLESHOOTING GUIDE

WARNING: Only those persons who have read the complete operations manual or

who have received authorization from the medical facility director should
attempt to troubleshoot and/or repair the RO+ system.

NOTE: At times it may become necessary to replace parts on your RO. AmeriWater stocks

all parts and components for the system, and can ship the necessary replacement
parts to you if you call Customer Service at 1-800-535-5585 between 8:00 a.m. and
5:00 p.m. EST.

To assist you in quickly restoring your system into service, AmeriWater will send your
replacement part out immediately and check your bad part when it comes in to verify

if it is covered under your equipment warranty.
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
RO will not start RO not plugged in

Circuit breaker blown
RO in a FAULT condition

System has power but no
water flow

Feed source not open

Feed pressure < 20 PSI

Incoming hose kinked

Prefilter clogged

Plug into electrical outlet.
Reset the breaker.
Check RO controller display

for FAULT condition and
correct the FAULT.

Open Incoming Tap Water
valve.

Increase pressure to > 20
PSI.

Straighten kinks from the
INCOMING TAP WATER
hose.

Check the prefilter gauges for
pressure drop; replace the
carbon blocks if the pressure
drop is 15 PSI or greater.

Circuit board relay is not
operating

Feed solenoid is not
operating

42

Replace the controller circuit
board

Test the solenoid. Replace
the valve if it is defective.

98-2004, Healthcare RO2 Manual, Rev. H

PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
Low product flow rate Low pressure feeding

membrane

Low pump PSI

Reject GPM flow rate too
high

Excessive PRODUCT line
backpressure

Relief valve has failed shut.
Low temperature incoming

tap water

Verify that the incoming tap
water supply is fully open.
The pressure on the prefilter
gauges should be > 20 PSI
when the RO is operating.

Pump should be operating at
100 – 160 PSI.

Turn FLUSH VALVE to the IN
SERVICE position.

Check for restrictions in the
PRODUCT WATER hose.

Replace the relief valve.
Consult the Temperature

Correction to determine if the
flow rate is normal in relation
to the feed water
temperature.

Prefilter clogged

Membrane needs replaced

Disinfect cycle will not
operate when holding the

DISINFECT MODE has not
been accessed correctly.

ENTER key

Circuit board relay not
operating in DISINFECT
MODE.

Disinfect Solenoid Valve not
operating

Pressure fault Low incoming pressure to the

system

Check the prefilter gauges for
pressure drop. Replace the
prefilter and carbon block
cartridges if the pressure
drop is > 15 PSI.

Replace the membrane.
Access DISINFECT MODE

Replace the controller circuit
board.

Test solenoid valve. Replace
the valve if it fails.

Verify that the incoming
pressure to the system is
above the minimum
requirements.

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98-2004, Healthcare RO2 Manual, Rev. H

PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION

a. Exchange all water

RO Pump making excessive
noise

Low pressure or flow rate
feeding the RO

Feed solenoid is not
operating

Pump motor or impeller
failing

Poor quality product water High Chlorine levels

RO not rinsed thoroughly
FLUSH VALVE in the FLUSH

position

Check the prefilter outlet
gauge PSI (must be > 20
PSI), and verify that the
product flow (flowmeter) >

0.25 GPM.
Test the solenoid. Replace

the valve if it is defective.
Check PUMP PSI GAUGE to

verify that it is within
operating parameters.
Replace the pump assembly
if necessary.

Replace the Carbon
Cartridge filter.

Rinse membrane.
Put the FLUSH VALVE in the

IN SERVICE position.

Fouled membrane

Anti-scalant not working

treatment components.
b. Check and correct the

antiscalant system.
Verify the conductivity cell

accuracy with a known good
meter. Follow the calibration
procedures or replace cell if
necessary.

Verify anti-scalant system is
in operation.

44

98-2004, Healthcare RO2 Manual, Rev. H

ROS CONTROLLER TROUBLESHOOTING

Hazardous voltages are present when power is applied to the unit. Care should
be taken when troubleshooting any of the input power or output circuits. When
disconnecting or connecting any board or accessory, be sure power is
unplugged.

Before contacting AmeriWater for technical help, verify the programming of all Setpoints,
check the display and check the status of all lights and indicators. The more information
available when you contact us, the easier it will be to determine the source of the problem.
Standard setpoints, and drawings of the controller and pc boards can be found in Section 10,
ROS Controller.

PROBLEM INVESTIGATION CORRECTIVE ACTION
System Inoperative Is the yellow CPU active LED

blinking?
If no, is the green power

LED, DS1 Lit?
If no, is the fuse OK?
If no, replace the fuse.
If yes, with a voltmeter, verify

power is applied to the power
terminals L1 and L2.

Display Blank Is the green power LED, DS1

lit?
If yes, is the CPU active LED,

DS9 blinking?
If yes, adjust the display

contrast adjustment, R3. Is
the display still blank?

If power is applied to the
power terminals and the
other checks are OK, the pc
board is defective and should
be replaced.

If no power is applied to the
board, check the power
wiring to the system.

If no, refer to the system
inoperative section.

If no, replace the board.

If yes, replace the board.

Inlet Valve Will Not Operate Is the system in standby?

If no, are any shut down
conditions active?

If no, is the inlet LED, DS8
lit?

If yes, with a voltmeter, verify
if there is power on the inlet
terminals. Is there power?

45

If no, replace the board.

If no, replace the board.
If yes, check the valve and
wiring.

98-2004, Healthcare RO2 Manual, Rev. H

PROBLEM INVESTIGATION CORRECTIVE ACTION
RO Pump Will Not Operate

(Cont.)

No or incorrect conductivity
reading

Is the system in standby?
If no, are any shut down

conditions active?
If no, is the RO LED, DS6 lit?
If yes, with a voltmeter, verify

if there is power on the RO
pump terminals. Is there
power?

Is sensor wired correctly?
If yes, is sensor installed

inline?
If yes, verify correct

Conductivity range. Range
correct?

Does unit calibrate OK?

If no, replace the board.
If no, replace the board.
If yes, check the pump and

wiring.
If no, correct wiring.
If no, install correctly.

If no, correct range.

If yes, calibrate unit.

If no, disconnect green and
white wires of sensor. Does
reading show 0?

If yes, reconnect wires and
remove sensor from piping
and dry. Does reading show
0?

If yes, short terminals of cell
together. Does reading show
‘^^^’ ?

If no, replace board.

If no, replace cell.

If no, replace board.

46

98-2004, Healthcare RO2 Manual, Rev. H

SECTION 14, SPARE PARTS LIST

Consumables
Part # Name
002101C Regeneration Certificate, Standard DI
20-5102 Carbon Block Filter (10 micron block, 2.5” X 20”)
95-0007 Peracidin Disinfectant, 4 Quarts
95810125 PT401 Antiscalant, 4 Gallons
97HP20401 High Range Peracetic Acid Test Strips
97PX20501 Low Range Peracetic Acid Test Strips
R22-2521 Membrane

Replacement Parts
Part # Name
0013-0001 O-Ring Kit for 21-0032 Filter Housing (20”)
0119-0007 Drain Port Assembly
0119-0008 Drain Tee Assembly
0119-0010 Column Assembly
19300001-00 Column O-Ring
19530901 Air Vent
19560310 Knob Assembly
21-0032 Filter Housing (20”)
24-0015 Membrane Housing O-Ring Set
430002 0 – 100 PSI Pressure Gauge
430001 0 – 300 PSI Pump Pressure Gauge
67511004 Floatswitch
69932109 Wire Harness for Solenoid Valves
75679118 Resistivity High Trans with Patch
75679122 Hydro-Check, 200K Light with Alarm
92-0042 Hilti Anchor
94560410 DI Polisher, Caster, Twin Wheel with Brake
94560411 DI Polisher, Caster, Twin Wheel no Brake
R45760200 Mini-relief Valve
R59-0012 Normally Closed Solenoid Valve
R65511105 Incoming Pressure Switch
R69446010 Controller
R80-0002 MQ Distribution Pump
R080-0001 ROS Pump Assembly
R84-0002 PT401 Pump Assembly

47

98-2004, Healthcare RO2 Manual, Rev. H