Nor-tec MH Series Bedienungsanleitung

2544831-A

Series

CONTROL UNIT

Installation Manual

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 accept any liability for installations of humidity equipment installed

by unqualified personnel or the use of parts/components/equipment that are not authorized or

approved by WALTER MEIER LTD.

RECORD OF REVISIONS

For each revision, put the revised pages in your manual and discard the superseded pages. Write the

revision number and revision date, date put in manual, and the incorporator’s initials in the applicable

columns on the Record of Revisions.

Revision

Number Revision

Date Date Put

In Manual By Revision

Number Revision

Date Date Put

In Manual By

TABLE OF CONTENTS

Subject Page

10-00 INTRODUCTION

1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.1 NOTES ON THE OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.2 SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2. OPERATING THE MH CONTROL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 FUNCTION OF THE DISPLAY AND OPERATING ELEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2.2 SWITCHING THE CONTROL UNIT ON AND OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2.3 REMOTE OPERATING AND FAULT INDICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2.4 OVERVIEW AND OPERATING OF THE MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

3. EXPLANATION OF CONFIGURATION SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3.1 EXPLANATION OF THE STATUS INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3.2 EXPLANATION OF UNIT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3.3 EXPLANATION OF ERROR HISTORY LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

10-10 CONFIGURATION

1. CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

1.1 UNIT SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

1.2 MODBUS SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

10-20 OPERATIONAL FUNCATIONS

1. OPERATIONAL FUNCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

1.1 CARRYING OUT MANUAL DRAINING / PIPE FLUSHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

1.2 RESETTING THE MAINTENANCE INDICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

1.3 RESETTING THE HOURS METER OF THE UV LAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

10-30 TROUBLESHOOTING

1. FAULT INDICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

1.1 FAULT INDICATION 28

1.2 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

1.3 RESETTING THE ERROR INDICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

WARRANTY

THIS PAGE INTENTIONALLY LEFT BLANK

10-00

Page 1

2008-12-03

10-00

INTRODUCTION

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2008-12-03

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 can be

immediately accessed. If the equipment changes hands, the documentation must be

passed on to the new operator.

If the documentation gets lost, please contact your local Nortec representative.

The present operating instructions are protected under the Copyright Act. Passing-on

and reproduction of the manual (or part thereof) as well as exploitation and

communication of the contents are prohibited without written permission by the

manufacturer. Violation of copyright terms is subject to legal prosecution and arises

liability for indemnification. The manufacturer reserves the right to fully exploit

commercial patent rights.

1.2 SAFETY

Every person operating the MH control unit must have read and understood the

operating instructions of the MH control unit as well as the installation and operating

instructions of the Nortec MH (specially the safety instructions).

Knowing and understanding the contents of the operating instructions of the MH

control unit and the installation and operating instructions of the Nortec MH is a basic

requirement for protecting the personnel against any kind of danger, to prevent faulty

operation, and to operate the unit safely and correctly.

10-00

Page 3

2008-12-03

2. OPERATING THE MH CONTROL UNIT

2.1 FUNCTION OF THE DISPLAY AND OPERATING ELEMENTS

Figure 1. Display

10-00

Page 4

2008-12-03

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 system test the control is in normal operation mode.

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.

Switching the MH control unit off

The display goes out. On models MHB Reflow and MHTC Reflow the drain valve

opens and the water tub empties.

Note: The different hygiene functions (regular draining, flushing of the supply line, etc.)

remain active also in times without humidification / cooling demand, the control unit

should only be switched off for maintenance or, troubleshooting, or to disable

completely operation (as in seasonal shutdown).

2.3 REMOTE OPERATING AND FAULT INDICATION

If your control is equipped with a remote indication board (accessory) the following

operating status are shown remotely:

Activated remote

indication relay When? Display on Unit

H1 “Error” A fault is present, further

operation is not possible Red LED lights. An error

message is shown in the

display

H2 “Service” Maintenance or UV lamp

(option) replacement is

due. The unit remains

operational for a certain

time

Yellow LED lights. The

service warning message

is shown in the display

H3 “Humidification” Unit is humidifying Green LED lights

H4 “Unit on” Unit ready for operation Unit switch lights

10-00

Page 5

2008-12-03

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

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Page 6

2008-12-03

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 configuration of the Nortec MH

Standard operating display with external control via the

external controller.

Standby (no humidity demand) or Demand % (humidity

demand present).

Standard operating display with internal control.

- Actual humidity in %rh.

- Configured humidity setpoint in %rh.

Info Page: Settings

- Software version.

- Selected control signal source.

- Configured control signal range.

- Configured Modbus address of the unit.

Info Page: Performance data

- Configure power limitation in % of the maximum output.

- 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).

Info Page: Operating hours

- Total operating hours of the Nortec MH.

- Remaining operating hours to the next maintenance.

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