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MH
TM
Series
CONTROL UNIT
Installation Manual
2544831-A
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PROPRIETARY NOTICE This document and the information disclosed herein are proprietary data of WALTER MEIER LTD. Neither this document nor the information contained herein shall be reproduced used, or disclosed to others without the written authorization of 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. LIABILITY NOTICE WALTER MEIER LTD. does not acc
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TABLE OF CONTENTS Subject Page 10-00 INTRODUCTION 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1 NOTES ON THE OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.2 SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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10-00 INTRODUCTION 10-00 Page 1 2008-12-03
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1. INTRODUCTION 1.1 NOTES ON THE OPERATING INSTRUCTIONS 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. Safekeeping Please safeguard these operating instructions in a safe place, where they
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2. OPERATING THE MH CONTROL UNIT 2.1 FUNCTION OF THE DISPLAY AND OPERATING ELEMENTS Figure 1. Display 10-00 Page 3 2008-12-03
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2.2 SWITCHING THE CONTROL UNIT ON AND OFF NOTE: For putting the unit into operation and taking the unit out of operation please follow the procedures described in the installation and operating instructions for the Nortec MH. Switching the MH control unit on The control carries out a system test, during which all the LEDs light up and the opposite display is shown. If a failure occurs on the system test, a corresponding error message is shown in the display. After the syste
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2.4 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
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3. EXPLANATION OF CONFIGURATION SETTINGS 3.1 EXPLANATION OF THE STATUS INFORMATION (INDICATION STATUS) In normal operation mode the control unit is in the status level. The status level forms a loop that includes several pages holding operating information which can be accessed with the arrow keys. The various displays of the status level are shown below. Standard operating display The appearance of the standard operating display depends on the actual operating status and the conf
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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. – Time controlled draining/box cleaning (Timer). – Actual time of day. – Point in time of the next draining/cleaning cycle. – Configured cleaning mode. – Interval c
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Info Page: Box drying This page shows the settings for box drying. – Time controlled box drying (Timer) – Actual time of day – Point in time of the next drying cycle – Interval controlled box drying (Periodic) – Configured interval time in hours – Remaining time in hours up to the next drying cycle Info Page: Supply line flushing function/water quantity reduction function – Indicates if the supply line flushing function. – Indicates if the "Softstart" water conservation fun
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3.2 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. – Relay Humidity: Actual status of the remote indication relay “Humidify”. – Relay Service: Actual status of the remote indication relay “Service”. – Relay Error: Actual status of the remote ind
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3.3 EXPLANATION OF ERROR HISTORY LIST The last 10 faults that occurred during operation are saved in the error history list and can be reviewed. Path: Main menu > Info > Error History The last error that occurred is shown with: – Current Error being viewed / Total number of errors recorded. – date and time of occurrence – error code (Warning: W..., Error: E...– error message – additional info text regarding the error Press < > and < > keys, in order to select further err
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10-10 CONFIGURATION 10-10 Page 11 2008-12-03
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1. CONFIGURATION 1.1 UNIT SETTINGS 1.1.1 Launching the unit settings menu Path: Main menu > User > Password entry: 8808 > Settings Press the < > and < > keys in order to select the individual settings in the settings menu. Detailed information on the different settings are found in the following chapters sections. 1.1.2 Select dialogue language Select “Language” in the settings menu, then press the key. In the following modification dialogue select t
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1.1.3 Control Settings Select “Controls” in the settings menu, then press the 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. DESCRIPTION OF THE SETTINGS SignalSource Selecting the signal source. Factory setting: Analog Options: Analog Modbus Hum.Control: Selecting the control type. Factory setting: External O
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. 1.1.4 Setting the capacity limitation Select “Power Limit” in the settings menu, then press the 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 % 1.1.5 Configuring the supply pipe flushing Select “Inlet Flush” in the settings menu, then press the key. Used to configure the unit to flush supply lines even if there is no d
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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. This option does not appear for other models. Select “Clean Mode” in the settings menu, then press the key. In the upcoming modification dialogue select the desired cleaning/draining mode.
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1.1.7 Configuring the cleaning trigger 1 (Clean Trg. 1) With the cleaning trigger 1 settings you determine whether the forced draining/cleaning (MHTC Reflow) or the box cleaning (MHTC Flow) is time or interval controlled or triggered via an external signal. The forced draining can be deactivated, however the box cleaning can be deactivated. The forced draining cannot be deactivated for the MHTC Reflow. The washing can be deactivated for either the MHTC Flow or Reflow. Note: the
