Mar Cor Purification WRO 300 Service Manual
  1. Manuals
  2. Brands
  3. Mar Cor Purification Manuals
  4. Water Filtration Systems
  5. WRO 300
  6. Service manual

Mar Cor Purification WRO 300 Service Manual

Hide thumbs Also See for WRO 300:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Operator's Manual
Mar Cor Purification
WRO 300/300 H
Service Manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the WRO 300 and is the answer not in the manual?

Questions and answers

Daphne Hunter
May 21, 2025

I have a WRO300H PRO alarming 103:25 internal error message.

0
1 comments:
Mr. Anderson
May 24, 2025

The 103:25 internal error message for the Mar Cor Purification WRO 300 indicates a "Heater start-up test in heat disinfection or low flow heat" issue related to the product water temperature sensor (T1).

Action:
1. Check the connection of the product water temperature sensor (T1).
2. If needed, replace the sensor.

This answer is automatically generated

0

Related Manuals for Mar Cor Purification WRO 300

Summary of Contents for Mar Cor Purification WRO 300

  • Page 1 Mar Cor Purification WRO 300/300 H Service Manual...

  • Page 2: Important User Information

    Important User Information Copyright © 2012 by Mar Cor Purification, Inc. All rights reserved. No part of the contents of this manual may be reproduced, copied, or transmitted in any form or by any means including graphic, electronic, or mechanical methods or...

  • Page 3: Table Of Contents

    WRO 300/300 H Table of Contents Table of Contents Important User Information ..... . . 2 Intended Use........2 Table of Contents .
  • Page 4 External Communication Connections ..28 Heaters (only WRO 300 H) ....28 Mains Power Cable ......29 Description of Indications .
  • Page 5 WRO 300 H....... . . 103 WRO 300 ........104 Maintenance .
  • Page 6 Operation....... . 132 Heat (only WRO 300 H)..... 138 Chem/Rinse.

  • Page 7: Preface

    Preface This manual provides the information needed to carry out maintenance and to identify and remedy any fault that may occur on the WRO 300 water purification unit and the WRO 300 H water purification unit. The complete model name WRO 300 unit or WRO 300 H unit is used only when the information is specific and only valid for one of the mod- els.
  • Page 8 Preface WRO 300/300 H CAUTION • Dialysis machines that are supplied with water from the WRO unit, must comply with IEC 60601-2-16. • The WRO unit should only be operated by persons trained in the use of this equipment and who have studied the instruc- tions in the Operator’s Manual.

  • Page 9: List Of Symbols

    This way up Keep dry Separate collection for electrical and electronic equipment Year of manufacturing The WRO 300/300 H is protected against dripping water Recycling symbol -General Reject water connection Feed water inlet connection Loop connections (Product water outlet and return)

  • Page 10: Certification Marks

    US and Canada. The C and the US adjacent to the CSA mark indicates that the WRO 300/300 H water purifi- cation units have been evaluated to the applicable ANSI/UL and CSA standards for use in the US and Canada.

  • Page 11: Introduction

    Introduction 1 Introduction 1.1 Intended Use The MCP WRO 300/300 H Water Purification Unit is intended to be used as a dialysis accessory to produce water through reverse osmo- sis for one hemodialysis equipment. The WRO 300/300 H can be connected to hemodialysis equipment...

  • Page 12: Water Quality

    Introduction WRO 300/300 H 1.4 Water Quality 1.4.1 Pretreatment The quality of the incoming water varies from one place to another. Dif- ferent pretreatment equipment may be required depending on the local water quality and regulations. An acceptable quality of the feed water is required, that is in accordance to Technical Data on page 115.
  • Page 13 WRO 300/300 H Introduction CAUTION The conductivity value does not always indicate the suitability of the water for dialysis. For example, aluminium may be present in concentrations well exceeding recommended standards without affecting the conductivity. Therefore the quality of the product water, used for dialysis, should be verified by regular analysis of the water.
  • Page 14 Introduction WRO 300/300 H This page is blank. P/N 3027437 Rev. B...

  • Page 15: Technical Description

    Constant flow valve L.E. Chemical Intake Needle valve REVA BYVA Heater A Drain outlet Fig.2.1 — Flow diagram for the WRO 300 H unit Drain Flow block Constant flow valve Feed OFVA water INVA Loop Tank air vent Spray nozzle L.H.

  • Page 16: Components In Flow Diagram

    Low level sensor (LL) Float level switch Empty level sensor (LE) Optical sensor RO pump RO module The WRO 300 unit and the WRO 300 H unit have different membranes and different pressure vessels. Flow meter In product water line only in the...

  • Page 17: Flow Description

    WRO 300/300 H Technical Description Components Additional Information Tank air vent Connects the tank to the atmosphere and is also used as overflow connec- tion. 2.3 Flow Description 2.3.1 Run Flow block Constant flow valve Feed OFVA water INVA Loop...
  • Page 18 Also, excess product water is recirculated to save water. When the product water leaves the RO module in a WRO 300 H unit, it flows by the flow meter, the heater B, and the temperature sensor T1, (in a WRO 300 unit only T1).

  • Page 19: Chemical Disinfection And Cleaning

    WRO 300/300 H Technical Description Flow From Type of water liter/min product water loop tank product water, recirculated tank feed water product water loop dialysis machine product water 1. In this example: Flow Sum of Flows to and from the RO module, (according...

  • Page 20: Components

    Technical Description WRO 300/300 H 2.4 Components 2.4.1 Overview Fig.2.4 — The WRO 300 H unit overview P/N 3027437 Rev. B...

  • Page 21: Casing

    WRO 300/300 H Technical Description Fig.2.5 — The WRO 300 unit overview 2.4.2 Casing The casing consists of four pieces as shown in the figure below. Casing top Detachable cover Casing back Tray Fig.2.6 — Casing P/N 3027437 Rev. B...

  • Page 22: Operator Panel

    Technical Description WRO 300/300 H 2.4.3 Operator Panel The circuit board with the display, buttons, buzzer and LCD screen is covered with an overlay. Overlay depends on model; WRO 300 unit or WRO 300 H unit. Arrow buttons Disinfection button...

  • Page 23: Y Coupling And Product Water Loop

    The tank air vent outlet must be connected with an air gap to drain. If a hose is connected to the tank air vent the hose should have a constant slope. Feed water inlet Temperature sensor (T3) (only WRO 300 H) Product water return Spray nozzle Level sensor 1 (High) Tank air vent...

  • Page 24: Ro Modules

    Fig.2.9 — RO module for the WRO 300 H unit NOTE • In a WRO 300 H unit, a new membrane element must be exposed to at least one heat cycle before the rejection rate is acceptable. • The membrane element must not be exposed to a pressure exceeding 3 bar at temperatures above 45 °C.

  • Page 25: Motor And Ro Pump Unit

    There are 4 holes, used to remove Reject water outlet the end plug with withdrawing tool Product water outlet Fig.2.10 — RO module for the WRO 300 unit. 2.4.9 Motor and RO Pump Unit Cooling fan Motor controller unit Pump motor RO pump Fig.2.11 —...

  • Page 26: Flow Block Complete

    Technical Description WRO 300/300 H 2.4.11 Flow Block Complete A number of the components required for the operation of the WRO unit are located in the flow block. Bypass valve (BYVA) Reject valve Inlet valve (REVA) (INVA) Return overflow valve (OFVA)

  • Page 27: Needle Valve

    WRO 300/300 H Technical Description Valves Description Return overflow valve The spring-assisted solenoid valve (OFVA) has two func- (OFVA) tions: • To maintain pressure in the loop. When deactivated (run), the valve remains closed (= no flow) at pressures below 0.25 MPa (2.5 bar). When the pressure increases further, it gradually opens and lets water through.

  • Page 28: Cpu Board

    External Equipment on page 118. 2.4.17 Heaters (only WRO 300 H) The WRO 300 H unit is equipped with two heaters with different prop- erties. The electrical connections are therefore different and marked REJECT and PRODUCT on the AC relay board. Mount the reject water heater to the left and the product water heater to the right as seen in the figure below —...

  • Page 29: Mains Power Cable

    Medium flash 0.4 sec 0.4 sec Fast flash 0.2 sec 0.2 sec Indications Description Indicates that the WRO 300 is energized. Green General Run mode, auto flush or manual flush in Green Steady progress. light The auto flush function is activated (only in Slow flash standby mode).
  • Page 30 Technical Description WRO 300/300 H Indications Description Chemical disinfection or cleaning is in Yellow Steady progress. light The disinfection wand connector is inserted Medium into the chemical intake. flash SELECT During selection of procedure in CHEM SELECT. The chemical intake phase is paused.

  • Page 31: Buzzer Sounds

    Heat disinfection activated Initiate Heat Disinfec- Slow flash of during by time channel tion on page 48 standby indicates that WRO 300 H only automated heat disinfec- tion by time channels is preset. Run activated by time Slow flash of during...

  • Page 32: Run Mode

    Flush on page 31). NOTE Auto flush mode has the same functionality as run mode but during a finite time period of maximum 100 minutes. The WRO 300 H unit performs a temperature test when initiating auto flush. 2.6.3 Run Mode...
  • Page 33 WRO 300/300 H Technical Description amounts of water leaving the WRO unit through the air vent in case of a failure of level sensor LH. Alarm 104 INVALID WATER LEVEL displays if the opening time for INVA exceeds the value for preset S233 (only changeable from GXP, refer to Tank on page 23).
  • Page 34 Technical Description WRO 300/300 H The conductivity limits should be set in relation to the feed water con- ductivity. Local regulation must be considered when determining the values of the limits. NOTE High product water conductivity value can be caused by several fac- tors, such as fouling or degradation of the RO membrane or change in the feed water quality.

  • Page 35: Changing From Run To Standby Mode

    WRO 300/300 H Technical Description changes in performance of the WRO unit which may be caused by fouling or degradation of the RO membrane. The rejection rate notification default setting of 90 percent (S149 changeable from GXP software or internal service mode, refer to Rejection Rate and Peak Test on page 86 or Alarm Limits on page 85) is relevant for most inlet water supplies.
  • Page 36 Technical Description WRO 300/300 H power loss (even if the WRO unit was in standby at the time of the power loss). When the power returns after a power loss the recovery function in the WRO unit tries to bring the machine back to the mode it was in, at the time of the power loss.

  • Page 37: Hygiene Functions

    WRO 300/300 H Technical Description 2.8 Hygiene Functions 2.8.1 Manual Flush The manual flush function is initiated by the operator when the WRO until SELECT displays. Use the unit is in standby mode. Press arrow buttons to display MANUAL FLUSH. Press to initiate.
  • Page 38 Technical Description WRO 300/300 H 2.8.2.1 Intake Phase The optical sensor detects when the disinfection wand is connected to the chemical intake. CHEM SELECT displays and starts to flash. The other end of the disinfection wand should be inserted into an external container with cleaning or disinfection solution.
  • Page 39 WRO 300/300 H Technical Description been performed and the conductivity reading (C2) is below the notifica- tion limit for product water, S33, refer to Alarm Limits on page 85. When the preset intake phase has ended, both the RO pump and the chemical intake pump stop and 401 REMOVE WAND displays until the disinfection wand is removed from the chemical intake.
  • Page 40 /alkaline cleaning) the function has to be enabled in preset 1. Only in the WRO 300 H unit 2. Warm Acid cleaning in the WRO 300 H unit 3. S-number; S153, S154, S155, S156, refer to Time Since Last on page 97.
  • Page 41 WRO 300/300 H Technical Description 2.8.2.6 Disinfectant Concentration Calculate the concentration of disinfectant in the WRO unit by using the variables described in the table below and the formula in the follow- ing table: Value Description Unit Internal water volume in the WRO unit (3500 ml) +...
  • Page 42 Technical Description WRO 300/300 H starts and runs until LL indicates air. The RO pump stops and the inlet valve (INVA) opens. It stays open until LL again senses water. When the disinfectant level in the tank reaches the high level sensor (HL), the reject valve (REVA) opens to drain.
  • Page 43 2.8.2.9 Acid Cleaning (only WRO 300) For a description of the intake phase refer to Chemical Disinfection and Cleaning on page 37). During the intake phase and dwell of acid cleaning, the bypass valve BYVA is open when the RO pump is run- ning.

  • Page 44: Dwell And Rinse

    If the preset temperature value is not reached during warm acid clean the alarm 407 INSUFFICIENT TEMPERATURE is activated. 2.8.2.11 Alkaline Cleaning Refer to Acid Cleaning (only WRO 300) on page 43. 2.8.3 Dwell and Rinse After a disinfection or cleaning program, the intake phase will automat- ically be followed by dwell and rinse.
  • Page 45 Verify the absence of chemicals or cleaning solution with approved methods. Refer to the Operator’s Manual for the WRO 300 unit or the WRO 300 H unit. 1. S43, S53, S63, S73, S83, S93, S103, S113, S123, S133, 2.

  • Page 46: Preservation

    Technical Description WRO 300/300 H 2.8.3.4 Residual Test After Central Chemical Disinfection: After central chemical disinfection the WRO unit goes to standby, when the rinse phase is completed. There is no request from the WRO unit to perform residual test. This has to be performed on the dialysis machine after the dialysis machine’s rinse, according to the Operator’s...
  • Page 47 WRO 300/300 H Technical Description sensor (LL). These steps are repeated eleven times and then 401 REMOVE WAND displays. Flow block Constant flow valve Feed OFVA water INVA Loop Tank air vent Spray nozzle Flow meter L.H. Product Heater B...

  • Page 48: Heat Disinfection (Only Wro 300 H)

    Refer to Rinse Phase and Residual Test on page 45. 2.8.5 Heat Disinfection (only WRO 300 H) If the WRO 300 H unit will not be used for an extended period of time, heat disinfection, either manually initiated or set by time channels, will maintain the microbiological quality of the product water.
  • Page 49 Initiation of any procedure (heat disinfection or low flow heat) in the WRO 300 H using the heater rods starts with functional tests to verify proper function of the following components (refer to Internal Error : N INTERNAL ERROR on page 126): •...
  • Page 50 The over heat protection function has higher priority than the soft- ware. This is a safety precaution so that the WRO 300 H unit will never be able to turn the heater rods on if the water flow is insuffi- cient.
  • Page 51 WRO 300/300 H Technical Description Flow block Constant flow valve Feed OFVA water INVA Loop Tank air vent Spray nozzle Flow meter L.H. Product Heater B Chemical water Drain Tank intake pump RO module RO pump Chemical L.L. Connector Constant flow valve L.E.
  • Page 52 40 ºC. The WRO 300 H unit then goes to standby mode. 2.8.5.7 Cool Down If active cool down is disabled in the preset, the WRO 300 H unit goes to standby after termination of heat disinfection. 2.8.5.8 Stop During Heat Disinfection To stop the heat disinfection press until light goes on.

  • Page 53: Features - Extra Functions

    WRO 300/300 H Technical Description 2.9 Features — Extra Functions 2.9.1 Water Save Function The drain flow from the WRO unit is approximately 1.3 l/min when the WRO unit is in run mode. In situations where water is scarce or expen- sive, the water save function can be used in order to reduce the water consumption.

  • Page 54: Reminders

    Technical Description WRO 300/300 H The table below shows the recovery ratios (that is, the percentage of the feed water that is converted to product water) for the WRO unit that will be obtained at different water save factors and at different dialysis fluid flow rates.

  • Page 55: Time Channels

    Time Channels on page 98). • Automatic start of heat disinfection; the WRO 300 H unit must be in standby mode. If heat disinfection is not started when preset in a time channel, alarm 303 OVERDUE HEAT displays when entering standby.
  • Page 56 Technical Description WRO 300/300 H This page is blank. P/N 3027437 Rev. B...

  • Page 57: Replacements

    WRO 300/300 H Replacements 3 Replacements 3.1 Replacement Matrix After replacing components, MCP recommends performing the differ- ent actions in the table below in a specific order to verify the function of the WRO unit. The order of actions is set by numbers for each compo- nent in the matrix below.
  • Page 58 Replacements WRO 300/300 H This page is blank. P/N 3027437 Rev. B...

  • Page 59: Internal Service

    WRO 300/300 H Internal Service 4 Internal Service 4.1 Changing Configuration Parameters The internal configuration parameters used by the WRO unit during operation can be changed in three different ways: • From internal service mode, see below. • New program version downloaded. Refer to GWD - Download on page 75.

  • Page 60: Internal Service Loop

    Internal Service WRO 300/300 H When (2) ENTER SERVICE CODE displays, use the arrow Step 4 buttons to change the value to 90 and then press When(3) ENTER SERVICE CODE displays, use the arrow Step 5 buttons to change the value to 00 and then press The INTERNAL SERVICE list is entered.
  • Page 61 WRO 300/300 H Internal Service 4.2.2.2 Internal Service List Sub Menus The sub menus are presented in this section, (one table for each menu in the internal service list). NOTE When the character / is used in this description, the sub menu can display either the text before or the text after /.
  • Page 62 Internal Service WRO 300/300 H Sub menus for TIME CHANNELS Information SET TYPE Use the arrow buttons to change the INACTIVE / STANDBY / SAV- type. Confirm by pressing RUN / HEAT displays and followed by WEEKDAY (the first sub menu for the time channel).
  • Page 63 WRO 300/300 H Internal Service Sub Menus for Reminders Information INACTIVE SET DAYS displays use the arrow INACTIVE / Y DAYS Y DAYS buttons to change to Y DAYS displays use the arrow but- tons to change the time period (1-730 days).
  • Page 64 Internal Service WRO 300/300 H Sub menus for CLEAR CHEM FLAG Information CHEM. FLAG Use the arrow buttons to change TRUE FALSE between . Confirm TRUE FALSE . SAVING by pressing displays, CLEAR CHEM FLAG followed by in the internal service list.
  • Page 65 WRO 300/300 H Internal Service 4.2.2.8 Calibrate Cond When CALIBRATE COND displays in the internal service list press to adjust the conductivity sensors C1 and C2. NOTE Only use COEFF. to adjust the conductivity sensors; for both the feed water FW (C1) and the product water PW (C2). Always set OFFSET to zero for both conductivity sensors.
  • Page 66 Internal Service WRO 300/300 H 4.2.2.9 Safe Memory Area When SAFE MEM. displays in the internal service list press enter the sub menu where all values in the safe memory area can be set to default values by choosing TRUE.
  • Page 67 WRO 300/300 H Internal Service 4.2.2.10 Default Presets When DEFAULT PRESETS displays in the internal service list press to enter the sub menu where all values in the preset area can be set to default values by choosing TRUE. Sub menus for...
  • Page 68 LOGGING displays. LOGGING Sub menus for Information RETURN TEMP. Temperature measured by T3. The read- ing is only valid in a WRO 300 H unit. X °C (116 indicates that no temperature sen- sor is connected.) P/N 3027437 Rev. B...
  • Page 69 PUMP SPEED Measured RO pump speed. 0 RPM REJECT TEMP Temperature measured by T2. The read- ing is only valid in a WRO 300 H unit. X °C indicates that no temperature sen- sor is connected.) 4.2.2.14 Cond. Alarm Limits When COND.
  • Page 70 Internal Service WRO 300/300 H NOTE The limits are also changeable from GXP, presets S33, S34, S35 and S149. Refer to Alarm Limits on page 85 and Rejection Rate and Peak Test on page 86. 4.2.2.15 Activate Functions When ACTIVATE FUNCTIONS displays in the internal service list press to display the list of functions.

  • Page 71: Pc Support Software

    Unzip W405050.zip to the desktop. Double click the W405050.bat file found in the extracted W405050 directory — this will install the driver. Step 2 Connect the USB cable from the WRO 300/300 H to an avail- able USB port. Step 3 Windows will detect new hardware.
  • Page 72 Internal Service WRO 300/300 H Step 5 Click Install from a list or specific location (Advanced) click Next Step 6 Click , select Search for the best driver in these locations check box, click Include the location in the search...
  • Page 73 WRO 300/300 H Internal Service Step 8 If the window below displays, click Continue Anyway Step 9 On the dialog Completing the Found New Hardware Wizard box, click Finish Step 10 On the dialog box shown below, click Finish P/N 3027437 Rev. B...

  • Page 74: Gxl - Logging

    Internal Service WRO 300/300 H Step 11 Windows displays the message Found New Hardware Step 12 The window displays with the COM port visi- Device Manager ble. The COM port number assigned will vary — the WRO software only recognizes ports 1–6. Please check what your installation resulted in.

  • Page 75: Checksum Status

    Verify the values with the program documentation. 4.3.5 GWD - Download NOTE Requires GWD version 2. GWD is a tool to upgrade the software in a WRO 300/300 H using a connected PC. 4.3.6 Start the GWD Step 1 Press the button and at the same time turn on power to the WRO unit using the mains power switch.
  • Page 76 Internal Service WRO 300/300 H Step 2 On the desktop, double click the icon to start the pro- gram and display the window. 4.3.6.1 Menus Menus Description File Re-scan COM Ports GWD will update the list of COM ports. Exit Ends the GWD program.
  • Page 77 WRO 300/300 H Internal Service Step 2 If the cable to the WRO 300/300 H is not connected when GWD is started, connect the cable and update the list with COM ports. To update the list point to and click...
  • Page 78 Internal Service WRO 300/300 H Step 5 On the window, Click Download Step 6 The program will proceed with the download, displaying the status. Step 7 When the download finishes, the program calculates a check- sum (CRC) to verify that the software has been downloaded correctly.

  • Page 79: Presets And Defaults

    101 HEATING Heat Set Tempera- ture on page 88 Active Cooldown on page 89 Low Flow Heat on page 89 WRO 300 Flow Kit Installed on page 90 User Interface Panel (LCD) on page 87 P/N 3027437 Rev. B...
  • Page 80 Internal Service WRO 300/300 H Number of presets Group within this group Refer to REMINDERS Reminders on page 99 REMOTE Remote on page 100 RO PUMP RO Pump on page 83 TANK CONTROL Tank Control on page 83 TIME MANAGER...
  • Page 81 WRO 300/300 H Internal Service INDEX: S-Numbers S28, page 83 S70, page 94 S112, page 94 S154, page 97 S197, page 94 S29, page 84 S71, page 94 S113, page 94 S155, page 97 S198, page 94 S30, page 88...

  • Page 82: Change Presets For Wro 300 H

    Fig.4.1 — Data from flash memory to non volatile memory. The WRO 300 H setup reverts to WRO 300 basic settings. Values in the table below must be preset in a WRO 300 H unit for the machine to function as a WRO 300 H unit.

  • Page 83: Ro Pump

    WRO 300/300 H Internal Service Default Value for the Parameter Value WRO 300 H Unit Refer to 8 WARMACID Default Setting of Disin- fection Protocol on WARM WARM CITRIC page 94 ACID 4.4.2 RO Pump Group: RO Pump Parameter Settings...

  • Page 84: Water Save

    Internal Service WRO 300/300 H Group: Tank control Parameter Settings 0 = Timer off 0 = MECHANICAL Scale 1 - 600 (seconds) 1 = OPTICAL Default Low Limit High Limit NOTE • In WRO units manufactured with program version 3.2 or earlier, all three level sensors are optical sensors.

  • Page 85: Conductivity

    WRO 300/300 H Internal Service 4.4.5 Conductivity The conductivity monitoring uses three limits: notification, alarm and stop, allowing for individual adaptation of alarm settings to local prefer- ences and regulations. NOTE • For the operator to get an early warning of change in the product water conductivity;...
  • Page 86 • S33, S34, S35 are changeable from internal service mode. • Factory settings of limits for notification, alarm and stop are all pre- set to 60 µS/cm. With these preset limits the WRO 300 unit will stop without any previous warning if the product water conductivity exceeds 60 µS/cm for more than 30 seconds (since the priority of...

  • Page 87: User Interface Panel (Lcd)

    WRO 300/300 H Internal Service 4.4.6 User Interface Panel (LCD) Group: LCD Parameter Settings Name Language Backlight Timeout Loop Timeout S143 S144 S Number. Language for the LCD backlight time out. LCD list time out Description texts displayed for until the display the operator.
  • Page 88 Internal Service WRO 300/300 H 4.4.7.1 Heat Supply Voltage Group: Heating Parameter Settings Supply voltage Name S No. Heating Preset group Mains supply voltage for the WRO unit’s heater function. Description 0 = no heater function available Scale 1 = 220 - 240 V AC...
  • Page 89 High Limit NOTE The WRO 300 H has a feature called low flow heat that is used in conjunction with certain dialysis machines. This feature is not approved in the US by the FDA or currently compatible with any U.S.

  • Page 90: Disinfection Protocol Manager

    This preset must only be set to TRUE if a flow kit has been installed Description in a WRO 300 unit. Then the product water flow displays for operator and the notification for low product flow notification limit can be issued...
  • Page 91 WRO 300/300 H Internal Service Group: DisProtManager Parameter Settings Low Limit High Limit NOTE • The first protocol to display when the disinfection wand is con- nected and the down arrow button is pressed, is defined in S138 • The protocol defined by S138 will be shown whether the actual protocol is visible or invisible.·...
  • Page 92 Internal Service WRO 300/300 H 4.4.8.2 Disinfection Protocol The protocol parameters are described in table below. All S-numbers and default values for the protocols are presented on page 94. Group: DisProtManager LIMIT Scale Further Description High Name PROTX_VISIBLE 1 = visible...
  • Page 93 WRO 300/300 H Internal Service Group: DisProtManager LIMIT Scale Further Description High Name PROTX_INT_MIT_RU 1 minute The time for the RO pump 1000 N_TIME to be on, PROTX_INT_MIT_RUN_ MODE is set to TRUE. PROTX_INT_MIT_ST 1 minute The time, for the RO pump...
  • Page 94 Internal Service WRO 300/300 H 4.4.8.3 Default Setting of Disinfection Protocol Protocol No. Name Cold Cold PROTX_VISIBLE S107 S107 S117 S127 PROTX_TYPE S108 S108 S118 S128 PROTX_TITLE S109 S109 S119 S129 PROTX_CONT_TIME S100 S110 S110 S120 S130 PROX_CH_VL S101 S111 S111 S121 S131...

  • Page 95: Chemical Disinfection

    WRO 300/300 H Internal Service 4.4.9 Chemical Disinfection 4.4.9.1 Chemical Intake Pump Capacity Group: Chem Parameter Settings PUMP_CONSTANT_WATER Name S151 S No. The value represents the pump capacity in terms of volume per sec- Description ond. 1/10 ml/second Scale Default...
  • Page 96 Internal Service WRO 300/300 H Group: Chem Parameter Settings Low Limit High Limit 4.4.9.4 Manual Flush Group: DisProtManager Parameter Settings CDM_MANUAL_FLUSH_TIME Name S223 S No. The duration of manual flush mode. Description 1 minutes Scale Default Low Limit 1000 High Limit...

  • Page 97: Time Manager

    WRO 300/300 H Internal Service 4.4.10 Time Manager 4.4.10.1 Auto Flush Group: Time manager Parameter Settings Autoflush standby Autoflush run-time Standby flush Name time enable/disable S139 S140 S 185 S No. Time in standby Duration of an Auto Enables or disables...

  • Page 98: Time Channels

    Refer to the Operator’s Manual. NOTE Setting S153 to visible in a WRO 300 unit will enable the TIME SINCE LAST HEAT message in the information list. However, the value has no meaning to the operator.

  • Page 99: Reminders

    WRO 300/300 H Internal Service Group: Time channel Parameter Settings Examples: Further Explanation 08:0021 means that 08:00 o’clock on Wednesday a Heat dis- infection will automatically be started. 00:3512 means that 00:35 o’clock on Tuesday run will auto- matically be started.

  • Page 100: Remote

    Default Reminders_5 Reminders_52 Name S179 S180 S No. REMI NDER5 Default 4.4.13 Remote Group: Remote Parameter Settings WRO 300 - AK pro- CRC_RUN_SIGNAL_ Enable/disable Name tocol INVERSED_POLARITY remote chem dis stop S182 S208 S234 S No. Setting of serial or...

  • Page 101: External Relay

    WRO 300/300 H Internal Service 4.4.14 External relay Group: External Relay Parameter Settings External buzzer relay on/off Name S226 S No. If enabled (TRUE), it is possible to use the external alarm output to Description control opening and closing of the external tap water valve. Makes it possible to activate run by Time channels and at the same time con- trol the external tap.
  • Page 102 Internal Service WRO 300/300 H This page is blank. P/N 3027437 Rev. B...

  • Page 103: Wiring Diagram

    Chemical wand sensor Flow Sensor Ground Flow Sensor Output Flow Sensor Supply P606 AC Relay Product P603 board heater rod P604 Reject heater P602 P601 Flow indicator Fig.5.1 — Wiring diagram for the WRO 300 H unit P/N 3027437 Rev. B...

  • Page 104: Wro 300

    Inlet valve Overflow valve Operator’s Reject valve Panel Bypass valve Chemical wand sensor Flow Sensor Ground, not connected Flow Sensor Output, not connected Flow Sensor Supply, not connected Fig.5.2 — Wiring diagram for the WRO 300 unit P/N 3027437 Rev. B...

  • Page 105: Maintenance

    WRO 300/300 H Maintenance 6 Maintenance 6.1 Water Testing Certain tests of the water are required to insure proper function of the WRO unit. The testing frequency depends on system setup and local conditions and regulations. The following tests are recommended.

  • Page 106: Replacing Carbon Block Filters

    Maintenance WRO 300/300 H ter. Different sizes and filtration rates are available to fit different requirements. 6.2.2 Replacing Carbon Block Filters 6.2.2.1 Frequency The cartridge should be exchanged before the total chlorine concen- tration exceeds0.1 mg/l. Proactive replacement on a regular basis should be done to avoid an excessive pressure drop over the filter.
  • Page 107 Mount a pressure gauge in the quick connector on the RO module. Step 2 Connect the service tool to the Y-coupling on the loop of a WRO 300 or WRO 300 H. Step 3 Connect a hose to the outlet of the tool and lead it to drain. Step 4 Start the WRO in Run.

  • Page 108: Using Adjustment Tool Wt100Test

    Maintenance WRO 300/300 H 6.4.2 Using Adjustment Tool WT100TEST Step 1 Attach a pressure gauge to the quick connector on the RO module. Step 2 Attach another pressure gauge and an adjustable valve after the Y coupling on the product water loop.

  • Page 109: Conductivity Adjustment

    The product water temperature sensor is also used for the tempera- ture compensation calculation of the feed water conductivity. If the adjustment is to be made after a heat disinfection of a WRO 300 H unit, 30 extra minutes is required for the temperature equalization within the flow path.

  • Page 110: Checking Operator Panel

    During approximate two seconds after start verify that a frame with the outermost pixels are activated (the overlay blocks the lower part of the display). NOTE The text TEST WRO 300 will appear on the LCD after the time has expired. Step 3 Press and hold and verify that the button lights.

  • Page 111: Checking Chemical Intake O-Rings

    To avoid insufficient intake of chemicals because of air leakage, regu- larly check that the o-ring on the disinfection wand and the two o-rings in the chemical intake are intact. Change if any sign of damage. 6.8 Battery Replacement 6.8.1 WRO 300/300 H Battery Description Type Location...

  • Page 112: Waste Handling

    Maintenance WRO 300/300 H 6.8.3 Waste Handling Battery from WRO 300/300 H shall not be discarded in normal waste — instead separate and proper collection systems must be used. If improperly disposed, battery might contaminate the environment and risk the health of people.

  • Page 113: Electrical Safety

    Step 2 Check that the resistance between the grounding clips of the mains plug and the chassis grounding screw is 0.3 Ohm. 7.1.3 PET for WRO 300 H Step 1 Check that the resistance between the grounding clips of the mains plug and the exterior cover of the power supply is 0.3...

  • Page 114: Elt Wro 300

    Wait 5 minutes; verify that the WRO unit is still in LFH. Record the reading. Step 5 Check that the highest measured readings don't exceed the earth leakage current limit for WRO 300 H, see table below. 7.2.5 Earth Current Limits Voltage Current 220 –...

  • Page 115: Technical Data

    WRO 300/300 H Technical Data 8 Technical Data 8.1 Performance and Specification Values Output flow Minimum 1.1 l/min Product water • at +10 °C feed water temperature • at 0.15 MPa (22 psi) pressure in the product water loop Product water loop...
  • Page 116 Technical Data WRO 300/300 H Values Input Min. 3.0 l/min required Water Supply Feed Water Pressure During operation — there is an inlet flow of water into the WRO unit. 0.15 to 0.3 MPa (22 to 45 PSI) Maximum design pressure: 0.8 MPa (115 psi)
  • Page 117 WRO 300/300 H Technical Data Values Designed for flexible, reinforced tubing 8 mm x 2.5 mm (5/16 in. I.D.) Fluid The product water loop is designed for flexible, reinforced tubing 5 mm x 3 Connections Operating range 1–500 µS/cm Conductivity...
  • Page 118 Technical Data WRO 300/300 H Values Connection of External connector 8 pins REDEL, yellow. External Not used. Equipment External connector 8 pins REDEL, black. RS-232 Max input voltage ±15 VDC High level min output 5.0 VDC voltage Logging interface Low level max output 5.0 VDC...

  • Page 119: Chemical Disinfection

    WRO 300/300 H Technical Data 8.2 Chemical Disinfection The following disinfectants may be administered via the chemical Disinfection intake: • MINNCARE® Cold Sterilant • Other peracetic acid disinfectants, provided that they are approved by the manufacturer for disinfection of thin film composite reverse osmosis membranes made of modified polyamide.

  • Page 120: Materials Contacting Product Water

    Air Pressure range 500 to 1060 hPa For transportation and storage below the freezing point, the WRO 300 H must be filled with a preservation solution of 2% MEMSTOR, at least 9% glycerol and the remaining parts RO water. During transportation and storage the equipment must be kept in its original packing.

  • Page 121: Electromagnetic Environment

    Value The WRO 300 H is intended for use in the electromagnetic environment specified below. The cus- tomer or the user of the WRO 300 H should assure that it is used in such an environment. Emissions Test Compliance Electromagnetic Environment — Guidance...
  • Page 122 Portable and mobile RF communica- 61000-4-6 tions equipment should be used no 150 kHz to 80 closer to any part of the WRO 300 H, including cables, than the recom- mended separation distance calcu- lated from the equation applicable to the frequency of the transmitter.
  • Page 123 WRO 300 H The WRO 300 H is intended for use in an electromagnetic environment in which radiated RF distur- bances are controlled. The customer or the user of the WRO 300 H can help prevent electromag-...

  • Page 124: Safety

    Technical Data WRO 300/300 H 8.7 Safety The machine complies with the following standards: IEC 60601-1 General requirements for safety, Class I, type B, and IPX1. IEC 60601-1-2 Electromagnetic compatibility. P/N 3027437 Rev. B...

  • Page 125: Troubleshooting

    WRO 300/300 H Troubleshooting 9 Troubleshooting 9.1 Alarms A message text is shown on the display when an alarm condition exists. If multiple alarm conditions are present, only the last generated alarm message displays. The others can be accessed by pressing and then using the arrow buttons to scroll through the messages.
  • Page 126 Troubleshooting WRO 300/300 H Alarm Message Definition 102 HIGH LEVEL The WRO unit stops, buzzer sounds with SENSOR FAIL- stop sound, flashes, message text dis- plays. Reason Failure of high level sensor in tank. NOTE This alarm relates to optical sensors only.

  • Page 127: Internal Error (103:N)

    WRO 300/300 H Troubleshooting 9.1.2 Internal Error (103:N) 103:N Reason for Internal Error Action The preset memory structure is veri- 1 Restart the WRO unit. Verify that the fied at start-up. If the structure is alarm is not re-issued and that the...
  • Page 128 The reading from the flow indicator Before re-start of the heating/low flow (located in reject line) and from the heat, start the WRO 300 H in RUN. flow meter (located in the Product Let the WRO unit remain in RUN for water line) are both verified.
  • Page 129 WRO 300/300 H Troubleshooting 103:N Reason for Internal Error Action Error when read old preset values 1 Restart the WRO unit and verify that the alarm is not re-issued. Replace moving to E2-prom. the CPU board if problem persists. Perform all necessary actions...
  • Page 130 Troubleshooting WRO 300/300 H 103:N Reason for Internal Error Action Heater start-up test in heat disinfec- Replace AC relay board. tion or low flow heat. The control circuit on the AC relay board is verified to be turned off when the flow indicator and flow meter indicates flow.

  • Page 131: Internal Error (104)

    WRO 300/300 H Troubleshooting 103:N Reason for Internal Error Action The RO pump motor controller unit is 1 Start the WRO unit in RUN mode. supervised. It is verified that the 2 If the alarm is issued, immediately motor is rotating when the motor is continue as follows: commanded to run.

  • Page 132: Operation

    Troubleshooting WRO 300/300 H 9.1.4 Operation Alarm and Notifications Definition 201 CONDUCTIVITY When entering STANDBY mode, buzzer sounds with NOTIFICATION notification sound, flashes, message text dis- plays. Reason The conductivity value has exceeded the notification limit for more than 30 consecutive seconds during previous run period.
  • Page 133 WRO 300/300 H Troubleshooting Alarm and Notifications Definition 202 CONDUCTIVITY Buzzer sounds with alarm sound, flashes, mes- ALARM sage text displays Reason The conductivity value has exceeded the alarm limit for more than 30 consecutive seconds. Action 1 Start the WRO unit and let it run for at least 15 minutes (to allow for equalization of the water temperature within the unit).
  • Page 134 (18) for obstructions. Also check the function of the three- way valve REVA (20). Refer to component 18 and Flow diagram for the WRO 300 H 20 in unit on page 15 Flow diagram for the...
  • Page 135 WRO 300/300 H Troubleshooting Alarm and Notifications Definition 8 If the product water conductivity has increased without a change in feed water conductivity, per- form cleaning according to the Operator's Man- ual (if not already done). Recheck pressure and flow.
  • Page 136 Troubleshooting WRO 300/300 H Alarm and Notifications Definition 205 LOW REJECTION When entering STANDBY mode, buzzer sounds with RATE notification sound, flashes, message text dis- plays. Reason The conductivity rejection rate has been below set limit for more than 5 consecutive minutes during pre- vious Run period.
  • Page 137 WRO 300/300 H Troubleshooting Alarm and Notifications Definition 206 LOW PRODUCT When entering STANDBY mode, buzzer sounds with FLOW notification sound, flashes, message text dis- plays. Reason The purpose of this notification is to give an early warning of reduced product water output. The notifi-...

  • Page 138: Heat (Only Wro 300 H)

    Notification sound, flashes, message text displays. Reason Automatic start of heat disinfection is acti- vated by Time channel settings but cannot start because the WRO 300 H is not in STANDBY mode. Action Check Time channel settings. 304 INCORRECT...

  • Page 139: Chem/Rinse

    WRO 300/300 H Troubleshooting 9.1.6 Chem/Rinse Alarm and notifications Definition 401 REMOVE WAND Buzzer sounds with alarm sound, flashes, message text displays. Reason The chemical intake sensor indicates that the wand is still in place. Action 1 Check the connection cable to the chemical intake sensor.
  • Page 140 Troubleshooting WRO 300/300 H Alarm and notifications Definition 404 RINSE Buzzer sounds with alarm sound, REQUIRED flashes, message text displays. Reason The WRO is filled with chemicals. Action If the alarm persists after a second Rinse cycle replace the CPU board.

  • Page 141: Boot Loader

    WRO 300/300 H Troubleshooting Alarm and notifications Definition 408 INSERT WAND The WRO unit stops, buzzer sounds with alarm sound, flashes, message text displays. Reason A Central Chemical disinfection has been initiated via the remote control and the dis- infection wand is not inserted.
  • Page 142 Troubleshooting WRO 300/300 H This page is blank. P/N 3027437 Rev. B...

  • Page 143: Index

    Presets ......79 Fuses (WRO 300 H unit) ... 22 Chemical disinfection .
  • Page 144 Wiring diagrams WRO 300 ....104 WRO 300 H ....103 Y coupling .
  • Page 145 This page is blank.
  • Page 146 Toll Free: (800) 633-3080 Toll Free: (800) 633-3080 Fax: (484) 991-0230 Fax: (763) 210-3868 Fax: (210) 227-0735 Fax: (978) 453-1223 Fax: (714) 736-9402 ©2012 Mar Cor Purification, Inc. All rights reserved P/N 3027437 Rev. B Visit http://www.mcpur.com or call 1-800-633-3080 for more information.

This manual is also suitable for:

Wro 300 h

Table of Contents

Save PDF