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MRO2X

– 5X Manual

- 1 -

98-0058

Rev. R

SECTION 1, GENERAL INFORMATION

1.1

INTRODUCTION

Congratulations on your decision to use the MRO system!  The MRO is a water treatment
system for use in hemodialysis applications.  It is designed to pretreat and purify water resulting
in product water that meets or exceeds ANSI/AAMI RD62 requirements for use in making
dialysate for hemodialysis.

All models of the MRO are shipped completely assembled with required and optional water
treatment components.  The model that you purchased was selected for the volume of water
needed and the analysis of your input water. This Operation Manual was written for the
MRO2X, MRO3X, MRO4X, and MRO5X models.

Your MRO 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 MRO as soon as you receive it.  Please notify AmeriWater

®

if any problems are

encountered.

The initials “PAA” are used occasionally throughout this manual to generically represent the
hydrogen peroxide/peroxyacetic acid solution that is to be used for disinfection. Peracidin

®

is

an example of this solution. The caution on the front panel of the MRO that states “Use only

PAA/Use no substitutes” means that any of these products are acceptable. Do not attempt to
use anything other than hydrogen peroxide/peroxyacetic acid disinfecting solution.

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.

NOTE:

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.

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.

CAUTION:

No person should attempt to operate or service the AmeriWater MRO without

prior authorization, instruction, and training from AmeriWater and/or your
medical facility director.

1.2

RESTRICTION ON USE

Federal law restricts this device for sale by or on the order of a physician (medical director) for
use as a water treatment device for hemodialysis.

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Содержание MRO2X

Страница 1: ...R MROX OPERATION MAINTENANCE MANUAL FOR MODELS MRO2X MRO3X MRO4X AND MRO5X FOR CENTRAL SYSTEM APPLICATIONS Manufactured With Pride In The USA www ameriwater com 800 535 5585 AmeriWater 3345 Stop 8 Road Dayton OH 45414 ...

Страница 2: ......

Страница 3: ...er potentiel For service by qualified service personnel only Entretien par le personnel qualifié seulement Replace only with 120Vac 15amp time delay fuse Remplacer avec 120Vac 15 amp fusible à retardement seulement Earth Ground terminal Borne de mise à la terre Product marked with this symbol indicates that it is protected throughout by double insulation or reinforced insulation This product has b...

Страница 4: ...SINFECTING THE SYSTEM 18 5 2 DISINFECTING AN MRO AND LARGE LOOP SYSTEM 23 5 3 A WORD ABOUT HYDROGEN PEROXIDE PEROXYACETIC ACID 24 5 4 MEMBRANE FLUSH FEATURE AUTO FLUSH 25 SECTION 6 MRO CONTROLLER 26 6 1 FRONT PANEL CONTROLS AND INDICATORS 26 6 2 CONTROLLER OPERATION 27 6 3 CONTROLLER ADJUSTMENTS 30 6 4 STANDARD SETPOINTS 33 6 5 TO DISPLAY OR CHANGE SETPOINTS 35 SECTION 7 EXTERNAL WIRE INSTALLATION...

Страница 5: ... caution on the front panel of the MRO that states Use only PAA Use no substitutes means that any of these products are acceptable Do not attempt to use anything other than hydrogen peroxide peroxyacetic acid disinfecting solution 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...

Страница 6: ...8 LPD MRO5X 9 244 GPD 34 822 LPD Gallons Per Day Liters Per Day Connections Feed 3 4 plain hose Product 1 2 plain hose Drain 3 4 plain hose Electrical Requirements For the controller 115V 60Hz GFI Ground Fault Interrupter For the pump 208V 230V or 460V three phase 15 Amp fused disconnect 220V single phase 15 Amp fused disconnect Dimensions Packaged Dimensions not Packaged 64 H x 42 W x 38 D 59 H x...

Страница 7: ...ater and also is responsible for monitoring the water The AmeriWater MRO System is designed to produce water that meets or exceeds ANSI AAMI RD62 requirements Thin Film Composite Membrane PT401 Antiscalant Scale Inhibitor Contaminants Chemical Feed System Membrane Scale Control Not to exceed 40 ppm Contaminants Percentage Removal Calcium Magnesium Sodium Potassium Fluoride Nitrate NO3 Sulfate Copp...

Страница 8: ...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 ...

Страница 9: ...MRO2X 5X Manual 5 98 0058 Rev R SECTION 3 COMPONENTS AND SCHEMATICS 3 1 EXTERNAL FRONT VIEW ...

Страница 10: ... Gauge that measures the pressure in pounds per square inch of the Incoming Tap Water 7 PRODUCT WATER FOR DIALYSIS Connection carrying Product Water For Dialysis 8 REJECT WATER TO DRAIN Connection carrying Reject to the drain 9 INCOMING TAP WATER Hose carrying Incoming Tap Water that is to be treated by the RO 10 PAA JUG Plastic jug to mix hydrogen peroxide peroxyacetic acid PAA disinfecting solut...

Страница 11: ...MRO2X 5X Manual 7 98 0058 Rev R 3 2 INTERNAL REAR VIEW ...

Страница 12: ...R ASSY This header directs all product water from the membranes to the flow meter 20 INCOMING CONDUCTIVITY SENSOR Cell that reads the quality of the feed water 21 PRODUCT TO DRAIN SOLENOID Opens when water quality is below set point 22 PRODUCT TO USE SOLENOID Closes when water quality is below set point 23 DISINFECT SOLENOID ASSEMBLY Opens to allow the hydrogen peroxide peroxyacetic acid mixture t...

Страница 13: ...MRO2X 5X Manual 9 98 0058 Rev R 3 3 ELECTRICAL DIAGRAM MRO2X MRO3X MRO4X MRO5X ...

Страница 14: ...MRO2X 5X Manual 10 98 0058 Rev R 3 4FLUID DIAGRAM MRO2X MRO3X MRO4X ...

Страница 15: ...MRO2X 5X Manual 11 98 0058 Rev R 3 5 FLUID DIAGRAM MRO5X ...

Страница 16: ...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 3 All local plumbing and electrical requirements should be met To avoid electrical shock always unplug the MRO system before opening the face of the electrical controller 4 Incoming water should be between 41 F and 90 F 5 C and 33 C It is not recommended to...

Страница 17: ...et 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 MRO fail safe modes will be disabled and damage to the MRO or injury to the patient may occur 13 Minimize the opportunities for bacterial growth between uses Whenever the MRO is not used for a period of several hours and connected ...

Страница 18: ...ad them carefully 2 INCOMING TAP WATER PRODUCT WATER and REJECT WATER TO DRAIN hoses are labeled to prevent incorrect connections 3 Low pressure shutdown protects the pump if the feed pressure drops below 20 PSI 4 An audible alarm sounds whenever water quality drops to an unacceptable level WARNING The AmeriWater model MRO 2X through 5X is considered a non portable device It can be connected to a ...

Страница 19: ... clamp to hold in the necked down area of the barbed fitting 5 Connect the MRO 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 6 The REJECT WATER TO DRAIN hose coming out of the MRO system is for reject water The water from this hose will always...

Страница 20: ...conductivity alarm may sound which is normal when the MRO is in FLUSH Press the ALARM SILENCE key on the MRO controller to silence the alarm The alarm will restart after a 3 minute delay 16 The conductivity value after flushing and being put back into the service mode must be within the acceptable limit 17 After a thorough flushing of the preservative the MRO must be disinfected prior to being put...

Страница 21: ...o Drain feature of the MRO to the drain This will only occur when the Tank Full High limit switch indicates that the tank is full for a long period of time usually around 6 hours since the last use of the MRO If the MRO must be shut down for an extended period however use the following instructions 1 Before turning off the MRO by pressing the POWER key turn the REJECT VALVE counter clockwise to al...

Страница 22: ...containers of PAA solution into the MRO and loop system If this can t be accomplished refer to section 5 1 b that describes disinfecting a large loop system 1 Switch off the MRO by pressing the POWER key the display will show STANDBY Disconnect any dialysis machines from the Direct Feed Loop or Central System from the water loop before starting the disinfection procedure Disinfectant for the MRO o...

Страница 23: ...cular motion for approximately 10 seconds 9 Connect the PAA tubing male fitting into the quick disconnect fitting that is mounted on the front of the MRO Figure 5 1 10 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 the keys can be released 11 When in DISINFECT MODE the signal from the c...

Страница 24: ...d on the Start Up Log that this step was performed 16a The MRO if not connected to a loop should be filled PAA disinfecting solution To ensure that PAA solution has been pumped through the MRO use Peracid test strips P N 97hp20401 a Using a test strip test the water the REJECT WATER TO DRAIN hose the result must be at least 1 500 ppm b Use another test strip at the PRODUCT WATER hose the result mu...

Страница 25: ... THE LOOP USING THE CIP SWITCH IN THE ON POSITION WHEN THE MRO IS IN THE DISINFECTION MODE 17 Label the MRO with appropriate WARNING signs Example DO NOT USE CONTAINS DISINFECTANT 18 Leave the MRO in the DISINFECT ENABLED mode and allow the PAA solution to soak for 60 minutes within the MRO and the loop if connected to one WARNING Soaking longer than twelve hours may cause damage to the membrane 1...

Страница 26: ...t Begin to test for the presence of PAA with residual test strips Renal Check PX Test Strips P N 97PX20501 at all water outlet points if connected to a loop 25a If the MRO is not connected to a loop periodically test for the presence of residual PAA at the ends of the REJECT and PRODUCT WATER hoses as the water exits into the sink until no trace of PAA is detected by the residual test strips 25b I...

Страница 27: ...e the CIP Clean In Place mode will have to be accessed to assure complete circulation of the PAA through the MRO through the large direct feed loop and back to the MRO WARNING Circulate the PAA solution only enough to achieve a minimum required amount of 0 5 at each water outlet in the loop system and at the Product Recovery water return to the CIP2 tank Once the minimum amount is achieved at all ...

Страница 28: ... disinfecting solution down the drain taking care to avoid spills splashes or breathing the vapors CAUTION Splashing PAA concentrate may cause severe chemical burns 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 with tap water to remove res...

Страница 29: ...ATER to the drain This minimizes bacterial growth and directs all the water to the drain rather than refill the storage tank FLUSH MODE 3 will cause all the water to be diverted to drain for each MEMBRANE AUTO FLUSH cycle On the other hand when an MRO is connected to a Direct Feed Loop the PRODUCT water should be directed into the loop during the MEMBRANE AUTO FLUSH cycle to keep the water in the ...

Страница 30: ...first Setpoint RIGHT ARROW KEY Scrolls through Setpoints starting with last Setpoint UP ARROW KEY Increases value of Setpoint DOWN ARROW KEY Decreases value of Setpoint ENTER KEY Confirms entry of new Setpoint value ALARM SILENCE RESET KEY Push once for alarm silence and twice to reset system after a shutdown has occurred ACCESSING DISINFECT MODE Push and hold the left arrow key and then push the ...

Страница 31: ... display Set point information can also be shown on this display OPERATING STATUS MESSAGES 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 STANDBY The unit is in the STANDBY mode DELAY 99 The unit is in the RO start delay The number is the seconds remaining before the RO pump starts OPERATING The RO unit...

Страница 32: ...will shut down on tank full TANK FULL will show on the display When the tank full condition clears the display will show TANK FULL 99 The number is the tank full restart time and the unit will restart when this delay times out For 2 level switch operation the upper switch is connected to the tank full high input and the lower switch is connected to the tank full low input When both switches are op...

Страница 33: ...0 the unit will automatically clear the pressure fault and attempt to restart after this delay times out ALARM SILENCE When a shut down occurs that causes the audible alarm to sound the alarm can be silenced by pressing the Alarm Silence Reset key once The alarm will remain silenced for 3 minutes 180 seconds AAMI RD62 standard when the Alarm Silence Setpoint is programmed to the factory default 3 ...

Страница 34: ...efer to Figure 6 2 for adjustment location SPAN To calibrate the Conductivity place the cell in a known standard solution Adjust the span adjustment for the correct reading If the cell is installed the unit can be calibrated by taking a sample from the PRODUCT TEST PORT and testing it with a known calibrated meter Adjust the span control until the reading matches the meter Refer to figure 6 for ad...

Страница 35: ...MRO2X 5X Manual 31 98 0058 Rev R FIGURE 6 2 ...

Страница 36: ...MRO2X 5X Manual 32 98 0058 Rev R FIGURE 6 3 ...

Страница 37: ... 10 Auto Reset When a pressure fault shut down is active the system will attempt to restart after this delay If set to 0 system must be manually reset 0 99 minutes 0 Alarm Silence If the audible alarm is silenced after this delay the alarm will resound If set to 0 the alarm will remain silenced 0 99 minutes 3 TF Restart Delay When a tank full condition clears the system will restart after this del...

Страница 38: ...TE If this Set point is changed the unit must be recalibrated 0 6 1 C2 Range Selects range of TDS Conductivity monitor 0 50 1 100 2 250 3 500 4 1000 5 2500 6 5000 NOTE If this Set point is changed the unit must be recalibrated and range components may need to be changed 0 6 4 C2 Limit When this value is met or exceeded the alarm lamp will light and high TDS Cond will show on the display To disable...

Страница 39: ...inning Setpoint and the Right arrow key starts with the last Setpoint 3 The Up and Down arrow keys are used to increase or decrease the Setpoint value The value will change by 1 count each time a key is pressed If the key is pressed and held for 1 second the Setpoint value will change at a fast rate When the key is released the fast rate will be reset Pressing both the UP and DOWN ARROW keys toget...

Страница 40: ...from outer shroud and remove inner terminals 3 Loosen the nut and run the float switch wires through the outer housing 4 Connect the High Tank float wires to contacts 1 6 Low Tank wires to contacts 2 7 Pretreatment Lockout wires to contacts 3 8 and RO Alarm Relay wires to contacts 4 9 5 Replace the inner terminals into the outer shroud 6 Tighten the nut replace the retaining screws and re install ...

Страница 41: ...sician medical director A water sample should be sent to a lab yearly for a complete AAMI water analysis to ensure that the product water meets AAMI standards 5 MRO System product water quality is dependent on input water quality Actual product water quality may vary substantially from the value for specified input water The expected results for the user s water can only be verified on the basis o...

Страница 42: ...g the procedure You may get wet 1 Place a container under the CHLORAMINE SAMPLE TEST PORT and slowly open the port to relieve the pressure on the MRO system 2 Place a container under the PRODUCT SAMPLE TEST PORT on the front panel and open to allow to drain 3 Open the back panel of cabinet 4 Press release button on Product Water Manifold Manifold located near top at back of left wall looking in ba...

Страница 43: ...lockwise to give full reject flow 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 2 hours to rinse out the preservative During this operation verify that the membranes are leak free 4 Turn the knob on the Reject Flow Control Knob clockwise so that the Product Water flow and Reject Water flow are app...

Страница 44: ...not plugged in Circuit breaker blown MRO in a FAULT condition Plug into electrical outlet Reset the breaker Check MRO controller display for FAULT condition and correct the FAULT System has power but no water flow Feed source not open Feed pressure 20 PSI Incoming hose kinked Prefilter clogged Circuit board relay is not operating Open Incoming Tap Water valve Increase pressure to 20 PSI Straighten...

Страница 45: ...utlet gauge PSI must be 20 PSI and verify that the product flow flowmeter 1 GPM Test the solenoid Section 9 5 Replace the valve if it is defective see Section 9 6 Check PUMP PSI GAUGE to verify that it is within operating parameters Replace the pump assembly if necessary see Sections 9 3 and 9 4 Poor quality product water High Chlorine levels MRO not rinsed thoroughly Reject Flow Meter not properl...

Страница 46: ...at 175 250 PSI Adjust Reject Water flow rate Check for restrictions in the PRODUCT WATER FOR DIALYSIS hose Check the feed pressure gauge on the dialysis machine If the dialysis machine does not have a pressure gauge install one inline Consult the Temperature Correction Chart to determine if the flow rate is normal in relation to the feed water temperature Check the prefilter gauges for pressure dr...

Страница 47: ...w 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 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 Display Blank Is th...

Страница 48: ...No or incorrect conductivity reading Is sensor wired correctly If yes is sensor installed inline as shown in the tubing diagram on page 14 If yes verify correct Conductivity range Range correct Does unit calibrate OK 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 to...

Страница 49: ...feed tube from inlet header by loosening the hose clamp on the hose barb tee 4 Disconnect the pump discharge hose Remove the pump PSI tubing by loosening the compression fitting 5 Remove the clamp securing the pump assembly and remove the assembly from the cabinet 6 Pull the release tab from the top of the pump to allow the old pump to be removed from the housing Remove all fittings from the exter...

Страница 50: ...le closing the valve will increase the product flow rate As the valve is being adjusted check product flow rate and pump pressure on the front of the unit The pump pressure is not to exceed 270psi and the flow rate cannot exceed 6 5gpm or damage to the pump and or over fluxing the membranes will occur 9 5 SOLENOID TEST PROCEDURE Feed Solenoid 1 With the MRO Off turn the Incoming Tap Water supply o...

Страница 51: ...bing from the solenoid valve 7 Remove the valve from the MRO cabinet by unbolting it from the cabinet 8 Remove the hose tube fittings from the defective valve 9 Make sure that the flow direction arrow located on the side of the valve is pointing in the correct direction same as one being replaced 10 Install per the kit instructions 11 Reattach the hose tubing to the corresponding fittings on the v...

Страница 52: ...MRO2X 5X Manual 48 98 0058 Rev R SECTION 11 SPARE PARTS LISTING ...

Страница 53: ...MRO2X 5X Manual 49 98 0058 Rev R ...

Страница 54: ...or Measuring High Range Paracetic Acid 97PX20501 Test Strips Renal Check 6 Bottles of 100 Strips each For Measuring Residual Peroxide 97PH20901 Test Strips pH 6 Bottles of 100 Strips each For Measuring pH Water Acid Base Bicarbonate Dialysate 97RC22101 WaterCheck RC 6 Bottles of 100 Strips each For Measuring Residual Chlorine 97CM20201 WaterCheck 2 6 Bottles of 100 Strips each For Measuring Low Le...

Страница 55: ... the correct housing being used with your product reference the pictures below The 0013 0002 o ring kit contains a quantity of 2 of the 24 0029 o rings and a quantity of 2 of the 24 0028 u packing seals that are used on the Pureteck membrane housing for the 2 end caps Also included in the kit are a quantity of 4 of the 24 0018 o rings used on the Axeon membrane housing for the 2 end caps See the d...

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