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Nortec MH Series Installation Manual

Nortec humidifier installation manual
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MH
Series
TM
CONTROL UNIT
Installation Manual
2544831-A

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Summary of Contents for Nortec MH Series

  • Page 1 Series CONTROL UNIT Installation Manual 2544831-A...

  • Page 2: Proprietary Notice

    WALTER MEIER LTD., except to the extent required for installation or maintenance of recipient’s equipment. All references to the NORTEC name should be taken as referring to WALTER MEIER LTD.

  • Page 3: Table Of Contents

    Subject 10-00 INTRODUCTION INTRODUCTION ............... . 2 1.1 NOTES ON THE OPERATING INSTRUCTIONS .
  • Page 4 THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 5 10-00 INTRODUCTION 10-00 Page 1 2008-12-03...

  • Page 6: Introduction

    Limitation These operating instructions are an addendum to the installation and operating instructions for the Nortec MH and describe the operating of the MH control unit, which is used with the models Nortec MHTC Flow, MHB Reflow, MHTC Reflow. These operating instructions are meant for well trained personnel being sufficiently qualified.

  • Page 7: Operating The Mh Control Unit

    2. OPERATING THE MH CONTROL UNIT FUNCTION OF THE DISPLAY AND OPERATING ELEMENTS Figure 1. Display 10-00 Page 3 2008-12-03...

  • Page 8: Switching The Control Unit On And Off

    The display shows the standard operating display. Note: The contents of the standard operating display depends on the type (MHTC Flow, MHTC Reflow), the actual operating status and on the configuration of the Nortec MH and can differ from the opposite display. When?

  • Page 9: Overview And Operating Of The Menu

    OVERVIEW AND OPERATING OF THE MENU The operating and display is operated via the four keys located just below the display. The four status fields at the bottom of the display show the current function of the keys. Keys Figure 2. Menu Overview 10-00 Page 5 2008-12-03...

  • Page 10: Explanation Of Configuration Settings

    - Actual output unit A in kg/h. - Actual total output in kg/h (the same as Capacity A unless a second module is connected to control unit). - Total operating hours of the Nortec MH. - Remaining operating hours to the next maintenance.
  • Page 11 Info Page: Clean Trg. 1 This page shows the current settings for the time based and externally activated forced draining/box cleaning (MHTC Reflow) or the box cleaning (MHTC Flow), respectively. Note: Wash = draining with simultaneous box cleaning (MHTC Reflow) or box cleaning only (MHTC Flow), Drain = draining only.
  • Page 12 Info Page: Box drying This page shows the settings for box drying. Info Page: Supply line flushing function/water quantity reduction function Info Page: UV Module (option) 10-00 Page 8 2008-12-03 – Time controlled box drying (Timer) – Actual time of day –...

  • Page 13: Explanation Of Unit Information

    EXPLANATION OF UNIT INFORMATION Path: Main menu > Info > Unit Status Press <> and <> keys, in order to select the unit information available in the list: – System Operation Hour: Total operating hours of the control unit (unit on) since the initial commissioning of the unit.

  • Page 14: Explanation Of Error History List

    EXPLANATION OF ERROR HISTORY LIST The last 10 faults that occurred during operation are saved in the error history list and can be reviewed. 10-00 Page 10 2008-12-03 Path: Main menu > Info > Error History The last error that occurred is shown with: –...
  • Page 15 10-10 CONFIGURATION 10-10 Page 11 2008-12-03...

  • Page 16: Configuration

    1. CONFIGURATION UNIT SETTINGS 1.1.1 Launching the unit settings menu 1.1.2 Select dialogue language 10-10 Page 12 2008-12-03 Path: Main menu > User > Password entry: 8808 > Settings Press the < > and < > keys in order to select the individual settings in the settings menu.
  • Page 17 1.1.3 Control Settings DESCRIPTION OF THE SETTINGS SignalSource Hum.Control: Controlsign. Hum.Setpoint: P-Band: Integr.-Time: Select “Controls” in the settings menu, then press the <Set> key. The control settings appear. The settings available depend on the selected signal source and the control type. The opposite display shows the maximum number of settings available.

  • Page 18: Description Of The Settings

    Select “Power Limit” in the settings menu, then press the <Set> key. In the upcoming modification dialogue set the desired capacity limitation in % of the maximum capacity of the humidifier. Factory setting: 100 % Setting range: 30...100 % Select “Inlet Flush” in the settings menu, then press the <Set>...
  • Page 19 1.1.6 Setting the Cleaning Mode (MHTC Reflow only) NOTE: The cleaning mode may only be set with the MHTC Reflow. With the cleaning mode you determine whether the humidification boxes will be washed simultaneously during a draining or operation dependent draining /cleaning cycle.
  • Page 20 MHTC Reflow. The washing can be deactivated for either the MHTC Flow or Reflow. Note: the forced cleaning/draining serves to empty the water tub regularly and independent of the operation time of the Nortec MH. 10-10 Page 16...
  • Page 21 1.1.8 Configuring the cleaning trigger 2 (Clean Trg. 2) (MHTC Reflow only) Note: The cleaning trigger 2 to configure operation dependent draining appears only with the MHTC Reflow. With the cleaning trigger 2 settings you determine whether operation dependent draining is triggered depending on the fill cycles or on the conductivity of the water in the water tub (option) or whether the cleaning trigger 2 should be deactivated.
  • Page 22 1.1.9 Configuring the humidification box drying An occasional drying of the humidification boxes helps prevent germs and bacteria from developing in the humidification boxes. The drying process can be time or, interval controlled, or it can be deactivated. Note: During operation, the drying process of the humidification boxes can lead to a temporary humidity decrease.
  • Page 23 Activating/deactivating the softstart function 1.1.11 If the mats in the humidifier boxes became dry due to a operation interruption, they need a certain time until they are again moistened with water. In order to prevent too much water flows over the humidification boxes in this phase and water droplets are carried in the air flow, the amount of water can be reduced for a fixed time with the “Softstart”...
  • Page 24 Performing remote relay tests 1.1.12 With the test functions under “Remote Test” you can check the function of the relays “Humidification”, “Service”, “Error” and “Unit on”. Setting the date 1.1.13 Setting the time 1.1.14 Setting the display contrast 1.1.15 10-10 Page 20 2008-12-03 Select “Remote Test”...

  • Page 25: Modbus Settings

    Select the Modbuus menu: Path: Main menu > User > Password entry: 8808 > Modbus The settings for the Modbuus appear. Setting the modbus address of the Nortec MH. Factory setting: 1 Setting range: 1...247 Selecting the parity bit for the data transmission.
  • Page 26 THIS PAGE INTENTIONALLY LEFT BLANK 10-10 Page 22 2008-12-03...

  • Page 27: Operational Funcations

    10-20 OPERATIONAL FUNCTIONS 10-20 Page 23 2008-12-03...

  • Page 28: Operational Funcations

    1. OPEARTIONAL FUNCTIONS CARRYING OUT MANUAL DRAINING / PIPE FLUSHING To carry out a manual draining (MHTC Reflow) or pipe flushing (MHTC Flow) proceed as follows: Drain 10-20 Page 24 2008-12-03 1. Briefly press the drain key. The drain/flush dialogue appears in the display. 2.

  • Page 29: Resetting The Maintenance Indication

    RESETTING THE MAINTENANCE INDICATION After completing maintenance work, the maintenance indication (yellow LED lights) must be reset on the models MHTC Flow, MHB Reflow, MHTC Reflow. Note: If the maintenance indication is not reset within 168 hours a fault is triggered and the unit stops operation.

  • Page 30: Resetting The Hours Meter Of The Uv Lamp

    RESETTING THE HOURS METER OF THE UV LAMP After replacing the UV lamp (option) the hours meter of the UV lamp must be reset. Note: If the hours meter of the UV lamp is not reset within 168 hours the UV maintenance warning an error message is triggered.

  • Page 31: Troubleshooting

    10-30 TROUBLESHOOTING 10-30 Page 27 2008-12-03...

  • Page 32: Fault Indication

    1. FAULT INDICATION FAULT INDICATION Malfunctions during operation are indicated by a corresponding warning or error message in the display of the control unit: Warning messages (additionally to the error message the red LED is on) Error message (additionally to the error message the red LED is on) 10-30 Page 28 2008-12-03...

  • Page 33: Fault Indication 1.2 Troubleshooting

    120V supply cable disconnected. Data of CPU and Install MH Card do not correct MH match. Card. Contact your Nortec supplier. CPU on control Replace board defective. control board. CPU on control Replace board defective. control board.
  • Page 34 1.2.2 Unit Faults Warning Display External safety chain is open green flash Error level sensor flashes Maximum filling time exceeded (30 minutes) flashes 10-30 Page 30 2008-12-03 Error Display Air proving interlock open. Air flow monitor triggered Safety humidistat triggered. Error level sensor The level sensor is lights...
  • Page 35 When draining the water When draining the water tub float is not open tub the within 4 hours within 8 minutes flashes lights Conductivity of the water in Conductivity of the water the tub too high in the tub too high flashes lights float is not open...
  • Page 36 Humidity sensor defective. Cause Remedy Perform maintenance according to section 10-40 of the installation and operating instructions for the Nortec MH. Then, reset the maintenance indication. Perform maintenance according to section 10-40 of the installation and operating instructions for the Nortec MH.
  • Page 37 No signal from No signal from conductivity sensor conductivity sensor flashes lights Nortec SH2 deactivated Modbus system failed via Modbus flashes lights Timeout Modbus flashes lights Cleaning of humidification boxes in progress Draining of water tub in progress Sensor cable not...

  • Page 38: Resetting The Error Indication

    Water pressure too low (flow only) flashes RESETTING THE ERROR INDICATION To reset the error indication: Investigate and correct cause of error. Turn control panel ON/OFF switch to OFF. Wait approx. 5 seconds, then turn control panel ON/OFF switch to On position. Note: If the fault has not been eliminated, the error indication reappears after a short while.

  • Page 39: Warranty

    F.O.B. THE COMPANY’s factory, providing the defective part(s) is returned freight prepaid by the customer. Parts used for repairs are warranted for the balance of the term of the warranty on the original humidifier or 90 days, whichever is longer.
  • Page 40 U.S.A. Walter Meier (Climate USA) Inc. 826 Proctor Avenue Ogdensburg, NY 13669 TEL: 1-866-NORTEC-1 EMAIL: northamerica.climate@waltermeier.com WEBSITE: www.humidity.com CANADA Walter Meier (Climate Canada) Ltd. 2740 Fenton Road Ottawa, ON K1T 3T7 TEL: 1-866-NORTEC-1 FAX: (613) 822-7964 Authorized Agent:...

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