Munters MX2 30 User Manual
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Munters MX2 30 User Manual

Desiccant dehumidifier with steam heater for reactivation
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Original instructions
User manual
MX² 30–95S
Desiccant dehumidifier
with steam heater for reactivation
Applies to all units manufactured
from week 01, 2015.
190TEN–1089–G1412
© Munters Europe AB 2015

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Summary of Contents for Munters MX2 30

  • Page 1 Original instructions User manual MX² 30–95S Desiccant dehumidifier with steam heater for reactivation Applies to all units manufactured from week 01, 2015. 190TEN–1089–G1412 © Munters Europe AB 2015...

  • Page 2: Important User Information

    Important user information Intended use Safety Munters dehumidifiers are intended to be used for the Information about dangers are in this manual indicated dehumidification of air. Any other use of the unit, or by the common hazard symbol: use which is contrary to the instructions given in this...

  • Page 3: Table Of Contents

    Table of contents Important user information ....Steam regulation ..... . Intended use ......Steam heater –...
  • Page 4 Scrapping ........Fault tracing list, steam heater unit . .. 10 Contact Munters ......Technical specification ....

  • Page 5: Introduction

    1.1 General Munters manufactures a wide range of efficient dehumidifiers designed for different uses and applications. Contact your nearest Munters office if you have any questions regarding the installation or the use of your dehumidifier. For product data, see section Technical specification.

  • Page 6: Safety Labels

    1.3.1 Safety labels The safety labels below are attached to the unit. Make sure that all personnel working with or near the unit are aware of the meaning of each label. Figure 1.1 Risk of personal injury due to electric shock. Figure 1.2 Risk of personal injury due to hot surfaces.

  • Page 7: Application Limitations

    1.5 Application limitations The dehumidifier conforms to the emission limits of residential, commercial and light-industrial environments except for the emission limits for harmonics emission (EN 61000-3-12). As the equipment exceeds the limits for harmonics it must not be used in residential, commercial or light-industrial environment without taking proper steps regarding the power installation like supplying the equipment from a dedicated transformer connected to the high or medium voltage network.

  • Page 8: Steam Supply

    Fabr. year 2010 3 ~ 400V 50 Hz 4,1 kW STEAM 4,6 kW IP33 Made in Sweden Munters Europe AB Isafjordsgatan 1 MX² 35-95S MX² 30S 164 26 Kista, Sweden Figure 1.3 Position of identification plate Figure 1.4 Identification plate, example Explanation of "Fabr.
  • Page 9 MX² 30S MX² 35-95S Figure 1.5 Label position Figure 1.6 Pressure test points TP1. Process air TP1–TP4. Differential pressure, process air TP2. Wet air TP2–TP3. Differential pressure, reactivation air TP3. Reactivation air TP4. Dry air Introduction 190TEN–1089–G1412...

  • Page 10: Dehumidifier Design

    Dehumidifier design 2.1 Product description The desiccant dehumidifier has been designed to effectively dehumidify the air in environments requiring low air humidity. ® All functional components are enclosed in a corrosion resistant Aluzink casing (standard) or stainless steel casing (option) which makes installation and maintenance easy. The unit is constructed on a steel base frame which allows the use of a fork-lift truck during transportation and installation.
  • Page 11 1. Process air 2. Dry air 3. Reactivation air 4. Wet air 5. Reactivation fan 6. Rotor 7. Process fan Figure 2.2 Airflow overview Dehumidifier design 190TEN–1089–G1412...

  • Page 12: Main Components, Mx² 30

    2.3 Main components, MX² 30 Figure 2.3 Exploded view Figure 2.4 Front view Dehumidifier design 190TEN–1089–G1412...
  • Page 13 Item No. Description Reactivation fan Filter, reactivation air Filter, process air Steam coil Cooling fan with filter Filter, cooling fan Connector, RJ45 Main power switch Pressure sensor Process fan Duct, bypass damper Rotor Drive motor, rotor Electrical panel Control system display Control panel Pressure sensor Filter guard...

  • Page 14: Main Components, Mx² 35-95

    2.4 Main components, MX² 35–95 Figure 2.5 Exploded view Figure 2.6 Front view Dehumidifier design 190TEN–1089–G1412...
  • Page 15 Item No. Description Control system display Control panel Process fan Duct, bypass damper Duct, purge, right Electrical panel Drive motor, rotor Rotor cassette Duct, purge, left Filter guard Plate, bypass Pressure sensor Filter, process air Reactivation fan (left) Reactivation fan Filter, reactivation air Steam coil Connector, RJ45...

  • Page 17: Configuration Features

    2.5 Configuration features This chapter includes information about functions and components that can be added when ordering an MX² dehumidifier. 2.5.1 Insulated process air inlet All dehumidifier units supplied with pre-cooled process air should have insulated process air inlet. The process air sector in front of the rotor has an internal lining of isolation to prevent condensation on the unit.

  • Page 18: Bypass Damper

    2.5.3 Bypass damper MX² 30 MX² 35-95 Figure 2.7 Handle for bypass damper An installed bypass damper kit allows a fixed airflow to be used when the process airflow exceeds the maximum rotor flow capacity. The bypass function consists of an adjustable damper positioned in the bypass airflow channel.

  • Page 19: Energy Efficiency Purge

    2.5.4 Energy Recovery Purge and Energy Efficiency Purge 1. Reactivation air 2. Heated reactivation air 3. Wet air 4. Process air 5. Dry air 6. Purge air 7. Warm purge air Figure 2.9 Principle for Energy Recovery Purge and Energy Efficiency Purge Energy Recovery Purge (ERP) and Energy Efficiency Purge (EEP) are two energy saving solutions that recycles heat from the rotor, after the reactivation section in the rotational direction of the rotor.

  • Page 20: Low Dewpoint Purge

    2.5.5 Low Dewpoint Purge 1. Reactivation air 2. Heated reactivation air 3. Wet air 4. Process air 5. Dry air 6. Warm purge air 7. Adjustable damper Figure 2.11 Low Dewpoint Purge principle Low Dewpoint Purge (LDP) is used to enable extra low dewpoints. A minor part of the process airflow is forced through a smaller sector of the rotor which, according to the rotor rotation direction, is positioned directly after the reactivation sector.

  • Page 21: Installation

    3. Remove all packaging material from the unit, and make sure that no damage has occurred during transportation. 4. Any visible damage must be reported in writing to Munters within 5 days and prior to installation of the unit. 5. Dispose of the packaging material according to local regulations.

  • Page 22: Scope Of Delivery - Steam Reactivation System

    Refer to Munters for advice if in doubt. NOTE! If there is a need for reduction of vibrations from the dehumidifier, contact Munters for instructions. Refer to standard EN1299+A1:2008. See section 8.3, Dimensions and service space for unit and service dimensions.

  • Page 23: Foundation

    3.7 Foundation The dehumidifier must be installed on a level floor, or platform, which has been designed with a floor loading capacity capable of supporting the machine’s weight. If the maximum floor loading weight is not exceeded, special foundations are not required. When the dehumidifier has been installed, it should be checked that it is level.

  • Page 24: Steam Regulation

    3.8 Steam regulation NOTE! Steam regulation setting must only be changed by authorised personnel. Contact Munters for more information. For dehumidifiers with steam reactivation heater, the dehumidification capacity/reactivation heater effect can be regulated according to the two different principles described below.
  • Page 25 A non-return valve must be installed in the condensate return line to prevent condensate from returning ■ to the heater and to protect against any hammering in the condensate system. This applies if the condensate return line has condensate from more than one steam trap as there could be differing pressures and temperatures and/or to protect against return flow when condensate is "lifted"...
  • Page 26 >0.5 % >0.5 % 18 19 >0.5 % >0.5 % Figure 3.3 Installation of steam heater. Steam supply Condensate drainage Condensate return, dehumidifier Closed condensate return Condensate return, drainage Open condensate return Thermal de-aerator Ball valve Vacuum valve Steam trap (float) Manometer Condensate tank Modulating steam valve...

  • Page 27: Set-Up And Running Checks

    NOTE! All pipework must be supported to ensure minimal strain on the connections. NOTE! It is important that the control valve does not open too quickly, including during "On/Off" control as this might damage the steam heater and other components. WARNING! When the steam control valve opens, no condensate must remain in the steam heater.
  • Page 28 Horizontal wet air ducts must be installed with a slight decline (away from the dehumidifier) to drain ■ away possible condensation. Suitable condensation drains should be installed at low points in the wet air outlet duct, see Figure 3.5 . Ensure that access for operation and servicing is not restricted when designing and installing ducting.

  • Page 29: Duct For Outdoor Air Inlet

    3.11.2 Duct for outdoor air inlet When bringing ambient air from outdoors into the dehumidifier, the inlet duct opening must be located sufficiently high above ground level to prevent dust and debris from entering. The ducting must be designed to prevent rain and snow from being drawn into the dehumidifier. The air inlet must be located away from possible contaminants such as engine exhaust gases, steam and harmful vapours.

  • Page 30: Duct Connection Dimensions, Air Inlets

    3.11.4 Duct connection dimensions, air inlets MX² 30S MX² 35-95S MX² 30 MX² 30 M6 (10x) M6 (14x) 200 (3x) 200 (2x) MX² 35-55 MX² 35-55 M8 (14x) M8 (18x) 1075 200 (4x) 200 (2x) MX² 60-95 MX² 60-95 M8 (14X) 1040 M8 (20x) 1199...

  • Page 31: Duct Connection Dimensions

    3.11.6 Duct connection dimensions (unit without process fan) MX² 30S MX² 35-95S MX² 35-55 MX² 30 MX² 60-95 Figure 3.7 Dry air outlet (C) and process air inlet without filter (D) Installation 190TEN–1089–G1412...

  • Page 32: Duct Connection Dimensions, Process Fan

    3.11.7 Duct connection dimensions, process fan MX² 30-95S M8 (8x) MX² 30 M8 (8X) M8(10x) 23,5 141,5 (2x) 154,5 (2x) MX² 35-55 MX² 60-95 Figure 3.8 Process air outlet (dry air outlet) C. Use hexagon head bolts (M8 x 25). Installation 190TEN–1089–G1412...

  • Page 33: Duct Connection Dimensions, Reactivation Fan

    3.11.8 Duct connection dimensions, reactivation fan MX² 30-95S M8 (6x) M8(8x) 95 (2x) MX² 30 MX² 35-55 110,5 (2x) M8(8x) 27,5 M8(8x) 133,5 (2x) MX² 60 MX² 80 MX² 95 Figure 3.9 Reactivation air outlet (wet air outlet) C: Use hexagon head bolts (M8 x 25) Installation 190TEN–1089–G1412...

  • Page 34: Electrical Connections

    3.12 Electrical connections The dehumidifier is designed for operation with a three-phase four wire system. All dehumidifiers are delivered complete with all internal wiring installed and configured in accordance with the voltage and frequency specified on the identification plate. The mains power supply is connected directly to the main power switch in the unit. The supply cable and main fuses must be dimensioned to suit the unit being installed.

  • Page 35: Commissioning

    For more information about the control system, parameters and settings, see the control system supplement. Contact Munters for help with installation and settings. For contact addresses, see section 10, Contact Munters. NOTE! The application software settings for the frequency converter are set at the factory. The frequency control range is limited to correspond to an acceptable fan speed.

  • Page 36: Setting The Rated Airflows

    Failure to correctly adjust the airflows can cause malfunction of the unit. Any damage to the unit resulting from incorrect adjustment of the airflows can invalidate the warranty of the unit. The airflows must never be set above the rated airflows without consulting Munters for verification. 4.2.2 Setting the rated airflows Process fan control with fixed speed...

  • Page 37: Set-Up And Test Of Steam Heater

    Fan coefficient Air flow Differential Fan speed pressure (rpm) (Pa) Process fan 2700 3000 MX² 30 Reactivation fan 3000 Process fan 3500 2400 MX² 35 Reactivation fan 1080 2550 Process fan 4000 2770 MX² 40 Reactivation fan 1260 3000 Process fan 5500 3000 MX²...

  • Page 38: Operation

    Operation 5.1 Control panel ALARM SERVICE SIEMENS Figure 5.2 Main power switch Figure 5.1 Control panel Item Switch/Indicator Function Figure 5.2 Main power switch (see When the main power switch is in position 0, the unit is not powered beyond the switch. When the main power switch is in position 1, the dehumidifier can be started.

  • Page 39: General

    5.2 General The mode switch on the control panel has two operating positions: AUTO (Automatic position): The dehumidifier’s fans, rotor and reactivation heater are activated only ■ when the humidity exceeds the desired value (the set point). If continual process air operation is selected in the control system, the process air fan continues to run even after the unit has stopped dehumidifying.

  • Page 40: Operating The Unit

    5.4 Operating the unit 5.4.1 Initial start–up, Manual mode (MAN) 1. Set the main power switch to position 1 and check that the display lights up. 2. Set the mode switch to MAN position. Check that: The white lamp which indicates that the dehumidifier is in operational mode lights. A few seconds ■...

  • Page 41: Service And Maintenance

    This value is programmed by Munters personnel at initial start-up of the unit. Service and maintenance...

  • Page 42: Service Options

    Munters products. All test equipment used by our personnel to ensure proper system balancing is certified for accuracy. Munters Service can offer a service plan adapted to suit the conditions of a specific installation. See contact addresses on the back page of this manual.

  • Page 43: (0-24000 Hours)

    Not required for units with steam reactivation heater. Table 6.1 Service and maintenance schedule (0–24000 hours) NOTE! Commissioning/Start-up inspection "S" by Munters is mandatory to validate the full warranty. NOTE! Service work should be performed at indicated operating hours or calendar time, whichever is reached first.

  • Page 44: Service And Maintenance Schedule (28000-48000 Hours)

    6.7 Service and maintenance schedule (28000–48000 hours) Service level Service work Operating time in hours 28000 32000 36000 40000 44000 48000 Calendar time in months Filter inspection, filter replacement if necessary, operational checks Preventive inspection, safety checks Capacity monitoring, rotor inspection Replacement of HTCO Thermostats Inspection of electric heater / steam heater Replacement of drive belt and belt lock...

  • Page 45: Maintenance Of Steam Reactivation Heater

    6.8 Maintenance of steam reactivation heater Adjustment, maintenance and repairs should only be carried out by qualified personnel who are aware of the hazards of operating and maintaining equipment operating with high voltages and high steam temperatures. Before attempting to carry out any inspection or maintenance in the heater compartment, the reactivation heater must be allowed to cool down.

  • Page 46: Air Filter Replacement

    6.9 Air filter replacement MX² 30 MX² 35-95 Figure 6.1 Tools required The procedure for filter replacement is the same for process filter and reactivation filter. Replacement of reactivation filter on MX² 55 shown as an example. The numbers within brackets refer to Figure 6.2 and Figure 6.3 .
  • Page 47 8. Clean the filter clamps and filter box using a vacuum cleaner. 9. Put the new filter between the filter clamps and push the filter fully into the filter box . Make sure that the arrow on the filter points in the same direction as the air stream (5). 10.

  • Page 48: Fault Tracing

    Fault tracing 7.1 Safety WARNING! Installation, adjustments, maintenance and repairs must only be carried out by qualified personnel who are aware of the risks involved when working with equipment operating with high electrical voltage and high machine temperatures. WARNING! The mains power supply is permanently connected to the main power switch of the unit. Risk of electric shock. WARNING! The dehumidifier can restart automatically after a power cut.

  • Page 49: Fault Tracing List, Dehumidifier

    7.2 Fault tracing list, dehumidifier Before contacting Munters, go through the fault tracing list below. Investigate the cause of alarm and rectify if possible. The list provides help in identifying faults that can often be rectified without the assistance of specially trained personnel.
  • Page 50 Check that the sensor is working. Power failure. Check the power supply to the unit. – React Heater Fault Reactivation heater error. Contact Munters Service. Yellow alarm when the unit is in The yellow alarm lamp on the operation. control panel is lit. The following text is shown on the display: –...

  • Page 51: Fault Tracing List, Steam Heater Unit

    7.3 Fault tracing list, steam heater unit The fault tracing list below provides help in identifying faults related to the steam heater unit. Before contacting Munters service, go through the list below and rectify the fault if possible. Fault symptom...

  • Page 52: Technical Specification

    Technical specification 8.1 Capacity diagrams NOTE! The figures in the diagrams are based on a rated airflow (1/1). MX² 30 kg/h MX² 35 kg/h 80 % RH 60 % RH 80 % RH 60 % RH 40 % RH 40 % RH °...
  • Page 53 kg/h MX² 60 MX² 80 kg/h 80 % RH 80 % RH 60 % RH 60 % RH 40 % RH 40 % RH °C °C kg/h MX² 95 80 % RH 60 % RH 40 % RH °C Technical specification 190TEN–1089–G1412...

  • Page 54: Noise Data

    8.2 Noise data 8.2.1 Noise to room Figure 8.1 Duct connection setups Setup A: All ducts connected 1. Ductwork for dry air Setup B: Process inlet not connected to duct 2. Ductwork for process air Setup C: Reactivation inlet not connected to duct 3.
  • Page 55 MX² 40E Correction Kok dB at ISO-band centre frequency, Hz Setup Lp(A) 100 m 1000 2000 4000 8000 (dB) MX² 55E Correction Kok dB at ISO-band centre frequency, Hz Setup Lp(A) 100 m 1000 2000 4000 8000 (dB) MX² 60E Correction Kok dB at ISO-band centre frequency, Hz Setup Lp(A) 100 m...

  • Page 56: Noise In Ducts

    8.2.2 Noise in ducts Figure 8.2 Duct connection setups Setup A: All ducts connected 1. Ductwork for dry air Setup B: Process inlet not connected to duct 2. Ductwork for process air Setup C: Reactivation inlet not connected to duct 3.
  • Page 57 MX² 55E Correction Kok dB at ISO-band centre frequency, Hz Ductwork Lwt (dB) 1000 2000 4000 8000 1. Dry air 2. Process air 3. Reactivation air 4. Wet air MX² 60E Correction Kok dB at ISO-band centre frequency, Hz Ductwork 1000 2000 4000...

  • Page 58: Dimensions And Service Space

    8.3 Dimensions and service space 8.3.1 Dimensions Figure 8.3 MX² 30S Figure 8.4 MX² 35–95S Technical specification 190TEN–1089–G1412...

  • Page 59: Dimensions (Unit Without Process Fan)

    8.3.2 Dimensions (unit without process fan) Figure 8.5 MX² 30S without process fan Figure 8.6 MX² 35–95S without process fan Technical specification 190TEN–1089–G1412...
  • Page 60 Dimensions MX² 30S MX² 35S MX² 40S MX² 55S MX² 60S MX² 80S MX² 95S (mm) 1091 1091 1091 1307 1307 1307 1068 1068 1068 1068 1068 1068 1882 1899 1899 1899 2204 2204 2204 1058 1284 1284 1284 1589 1589 1589 48,7 (1½”...

  • Page 61: Service Space

    8.3.3 Service space Figure 8.7 Required service space (S) Technical specification 190TEN–1089–G1412...

  • Page 62: Technical Data

    8.4 Technical data MX² 30S MX² 35S MX² 40S MX² 55S MX² 60S MX² 80S MX² 95S Process air Figures quoted are rated, based on a fan inlet temperature of 20 °C and an air density of 1,2 kg/m Rated airflow (m 0,750 0,972 1,111...
  • Page 63 MX² 30S MX² 35S MX² 40S MX² 55S MX² 60S MX² 80S MX² 95S Steam data Steam consumption (g/s) at 3 barg 14,1 14,1 19,7 16,9 30,9 39,4 28,1 Steam consumption (g/s) at 5 barg 14,4 14,4 20,1 17,3 31,6 40,3 28,8 Steam consumption, ERP (g/s) at 3 barg...

  • Page 64: Scrapping

    Scrapping The unit must be scrapped in accordance with applicable legal requirements and regulations. Contact your local authorities. The rotor material is not combustible, and should be deposited like glass fibre materials. If the rotor has been exposed to chemicals that are dangerous to the environment the risk must be assessed. The chemicals can accumulate in the rotor material.

  • Page 65: Contact Munters

    Munters Belgium nv Blarenberglaan 21c Tel: +3215285611 Air Treatment B-2800 Mechelen service@muntersbelgium.be www.muntersbelgium.be CZECH REPUBLIC Tel: +420 775 569 657 Munters CZ, organizacni slozka Slevacská 2368/68 info@munters-odvlhcovani.cz Air Treatment CZ-615 00 BRNO www.munters-odvlhcovani.cz DENMARK Munters A/S Ryttermarken 4 Tel: +4544953355...
  • Page 68 www.munters.com...

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