Nortec MH Series manual

2544831-A MH Series CONTROL UNIT Inst allation Manual TM[...]

PROPRIETARY NOTICE This document and the info rmation disc losed herein are propriet ary data of W AL TER MEIER L TD. Neither this documen t nor the information cont ained herein shall be reproduced used, or disclosed to others without th e written authorization of W AL TER MEIER L TD., except to the extent required for installation or maintenance [...]

TABLE OF CONTENTS Subject Page 10-00 INT RODUCTI ON 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1 NOTES ON THE OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.2 SAF[...]

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10-00 Page 1 2008-12-03 10-00 INTRODUCTION[...]

10-00 Page 2 2008-12-03 1. INTRODUCTION 1.1 NOTE S ON THE OPERATING I NSTRUCTIONS 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 instruc[...]

10-00 Page 3 2008-12-03 2. OPERATING THE MH CONTROL UNIT 2.1 FUNCTI ON OF THE DISPLAY AN D 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 oper ation please follow the procedures described in the installa tion 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 [...]

10-00 Page 5 2008-12-03 2.4 OVE RVIEW AND OPER ATING 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 6 2008-12-03 3. EXPLANATION OF CONFIGURATION SETTINGS 3.1 EXPLANAT ION OF THE STATUS INFORMATION (INDICATION STAT US) In normal operation mode the control un it is in the status level. The status level fo rms a lo op that includes several pages holdi ng op erating information which ca n be acce ssed with the arrow keys. The various displ[...]

10-00 Page 7 2008-12-03 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. – Tim[...]

10-00 Page 8 2008-12-03 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: Sup[...]

10-00 Page 9 2008-12-03 3.2 EXPLANAT ION 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: Actua[...]

10-00 Page 10 2008-12-03 3.3 EXPLANAT ION OF ERROR HISTORY LIST The last 10 faults that occurred during o peration 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 oc[...]

10-10 Page 11 2008-12-03 10-10 CONFIGURATION[...]

10-10 Page 12 2008-12-03 1. CONFIGURATION 1.1 UNIT SETTI NGS 1.1.1 Launching the unit settings menu Path: Main menu > User > Password entry: 8808 > Settings Press the < È > and < Ç > keys in order to select the individual settings in the settings menu. Detailed information on the different settings are found in the following [...]

10-10 Page 13 2008-12-03 1.1.3 Control Settings 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. DESCRIPTION OF THE SETTINGS SignalSource Sel[...]

10-10 Page 14 2008-12-03 . 1.1.4 Setting the capacity limitation 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 % 1.1.5 Configuring the supply pipe[...]

10-10 Page 15 2008-12-03 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 /cleanin g cycle. This option does not appear for other models[...]

10-10 Page 16 2008-12-03 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 ca[...]

10-10 Page 17 2008-12-03 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 cond[...]

10-10 Page 18 2008-12-03 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 triggered or, interval controlled, or it can be deactivated. Note : During operation, the drying process of the humidif[...]

10-10 Page 19 2008-12-03 1.1.10 Configuring the Humidifier Maintenance Interval Select “Maintenance” in the settings menu, then press the <Set> key. In the following dialogue set the desired maintenance interval time in hours. After the maintenance interval time has elapsed a maintenance message appears in the display and the yellow LED l[...]

10-10 Page 20 2008-12-03 1.1.12 Performing remote relay tests With the test functions under “ Remote Test ” you can check the function of the relays “Humidification”, “Service”, “Error” and “Unit on”. Select “Remote Test” in the settings menu, then press the <Set> key. Press the < Ç > and < È > keys in or[...]

10-10 Page 21 2008-12-03 1.2 Modbus Settings Select the Modbuus menu: Path: Main menu > User > Password entry: 8808 > Modbus The settings for the Modbuus appear. Description of Modbus Settings Modbus Add.: Setting the modbus address of the Nortec MH. Factory setting: 1 Setting range: 1...247 Parity: Selecting the parity bit for the data tr[...]

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

10-20 Page 24 2008-12-03 1. OPEARTION AL FUNCTIONS 1.1 CAR RYING OUT MANUAL DRAIN ING / PIPE FLUSHING To carry out a manual draining (MHTC Reflow) or pipe flushing (MHTC Flow) proceed as follows: Drain 1. Briefly press the drain key . The drain/flush dialogue appears in the display. 2. Press the <Start> key. – Models MHTC Reflow: The drain [...]

10-20 Page 25 2008-12-03 1.2 RESETTI NG 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. Select the maintenan[...]

10-20 Page 26 2008-12-03 1.3 RESETTI NG 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. Select the maintenance menu: Path: Main menu > User > Password[...]

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

10-30 Page 28 2008-12-03 1. FAULT INDICATION 1.1 FAULT INDI CATION Malfunctions during operati on are indicated by a corresponding warning or e rror message in the display of the control unit: Warning messages (additionally to the error me ssage the red LED is on) Further operation is still possible. If the cause of the malfunction disappears of i [...]

10-30 Page 29 2008-12-03 1.2 TROUBLESHOOTING 1.2.1 System Faults Warning Erro r Cause Remedy LED Display LED Display MH Card missing (Test run possible) MH Card Missing Red flashes Red lights No MH Card installed on the control board. Install MH Card or start test run. MH Card is Empty -- -- Red lights No data stored on the MH Card Install new MH C[...]

10-30 Page 30 2008-12-03 1.2.2 Unit Faults Warning Error Cause Remedy LED Display LED Display External safety chain is open Red and green flash -- Air proving interlock open. If applicable, check/turn on fan. Air flow monitor triggered Check fan/filter of the fan system. Safety humidistat triggered. Wait, if applicable, check safety humidistat Erro[...]

10-30 Page 31 2008-12-03 When draining the water tub float is not open within 8 minutes When draining the w ater tub the float is not open within 4 hours Red flashes Red lights Drain valve blocked/defective or clogged. Check/clean or replace drain valve. Siphon clogged. Clean siph on. Relay defective (weld-shut). Replace control board. Level sensor[...]

10-30 Page 32 2008-12-03 Warning Error Cause Remedy LED Display LED Display Maintenance due Maintenance not pe rformed and/or maintenance indication not reset Red flashes and yellow lights red and yellow lights Maintenance due. Perform maintenance according to section 10-40 of the installation and operating instructions for the Nortec MH. Then, res[...]

10-30 Page 33 2008-12-03 No signal from conductiv ity sensor No signal from conductiv ity sensor Red flashes Red lights Sensor cable not connected or sensor cable interrupted. Connect/replace sensor cable. Conductivity transmitter defective or wrong version (conductivity constant). Replace conductivity transmitter. Conductivity transmitter not conf[...]

10-30 Page 34 2008-12-03 Water pressure too lo w (flow only) Water pressure for more than 4 hours too lo w (flow only) Red flashes Red Lights Water supply blocked/shut-off valve closed/water pressure too low. Water treatment unit (fully demineralised water) is regenerating. Check water supply (fil ter, pipes, etc.), Check/open shut-off valve. Check[...]

WARRANTY (1) WALTER MEIER INC. and/or WALTER MEIER LTD. (hereinafter collective ly referred to as THE COMPANY), warrant for a period of two years afte r installation or 30 months from manufacturer’s ship date, whichever date is earlier, th at THE COMPANY’s manufactured and assembled products, not ot herwise expressly warranted (with the excepti[...]

U.S.A. W alter Meier (Climate USA) In c. 826 Proctor Avenue Ogdensburg, NY 13669 TEL: 1-866-NORTEC-1 EMAIL: northamerica.climate@waltermeier .com WEBSITE: www .humidity .com CANADA W alter Meier (Cli mate Canada) Ltd. 2740 Fenton Road Ottawa, ON K1 T 3T7 TEL: 1-866-NORTEC-1 F AX: (613 ) 822-7964 Authorized Agent:[...]