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1. Ll l 0 5 1 0 1 5 2 0 N E B m E E E E E a 190TGB 1022 B01 12 21 Subject to change without notice Munters MA Series Dehumidifiers 84 SOUND DATA MODEL T L CORRECTION OF AT ISO BAND No CENTRE FREQUENCY Hz 1 63 2 125 3 250 4 500 5 1000 6 2000 7 4000 8 8000 A 96 33 10 5 12 27 MA 2500 C B 97 27 9 5 13 17 88 19 3 11 16 19 A 103 6 6 7 14 21 27 35 MA 3000 C B 104 6 6 9 13 17 22 30 C 93 7 D 6 14 17 22 29 A 107 8 D D 8 14 20 27 33 10000 108 6 6 6 9 13 17 22 30 97 9 5 6 14 17 22 29 NOISE PATHS TO SURROUNDINGS A Noise path to duct system B Noise path to the surroundings dry air duct length 1 m C Noise path to the surroundings duct connected SYMBOLS L Total noise level dB rel 1077 L Noise power level in octave band dB rel 1077 Correction for the calculation of L Lom dS 190TGB 1022 B01 12 22 Subject to change without notice MA Series Dehumidifiers Munters 190TGB 1022 B01 12 23 Subject to change without notice Munters MA Series Dehumidifiers d 9 GENERAL ASSEMBLY opare and replacement parts should be ordered from your local sales company For addresses and telephone numbers refer to the back page When ordering spare parts always supply the following details Type referto
2. MA Series Dehumidifiers 3 4 3 MA 10000 C Control Panel Used to start and stop the dehumidifier When the unit is switched OFF a timer is activated and the fans continue to run for the residual heat from the reactivation Reactivation power OkW Reactivation power 52kW Reactivation power 104kW Reactivation power 156kW To be used to isolate the mains supply from the unit when any form of maintenance or servicing is being carried out on the unit Pos 0 Switchboard disconnected from the mains Switchboard connected to the mains Pos 1 Power Connected Indicator Indicates that mains power is connected to the dehumidifier HL37 Unit Running Indicator Indicates that the unit is running A CAUTION SB30 Emergency Stop Use to stop the dehumidifier in the case of an emergency Pressing this button disconnects all of the electrical components from the mains The doors of the cabinet must be kept closed During operation air from the dry air fan is fed via a filter on the side of the fan and a hose to the cabinet in order to maintain a positive pressure in the cabinet 190TGB 1022 B01 12 8 Subject to change without notice MA Series Dehumidifiers 3 4 4 Humidistat MA2500 C only OPTION MA2500 C units are pre wired so that when the units are in AUTOmatic mode they can be controlled by an externall
3. airflows of 2 500 to 15 000m h 12 WARRANTY The warranty period is 12 months from the date of equipment commissioning The warranty is limited to free replacement and shipping of any faulty part or sub assembly which has failed due to poor quality or manufacturing errors All claims must be supported by evidence that the failure has occurred within the warranty period and that the unit has been operated within the designed parameters specified All warranty claims must specify the unit type number and the serial number These details are printed on the unit identification plate 13 SAFETY Standards for Safety MA C series dehumidifiers are designed and built within an EN ISO 9001 accredited design and manufacturing organisation The units comply with the specifications of the European Machinery Directive 98 37 The following standards are applicable to product design m EN60204 1 EN 292 2 A1 EN 1050 EN 292 1 EN50081 1 EN 50082 2 EN292 2 190TGB 1022 B01 12 MA Series Dehumidifiers Responsibility for Safety Every care has been taken in the design and manufacture of MA C Series dehumidifiers to ensure that they meet the safety requirements listed in Paragraph 1 3 However the individual operating or working on any machinery is primarily responsible for m Personal safety safety of other personnel and the machinery m Correct utilisation of the machinery in accordance with relevant procedu
4. containing high voltages and temperatures BEI gt gt 61 MAINTENANCE PROCEDURES MA C dehumidifiers are designed to run for long periods with the minimum of attention and will normally require very little maintenance The frequency of maintenance will be determined by the operating conditions and the quality of the environment where the unit is being used If the process air has a high dust loading the scheduled maintenance should be carried out at at more frequent intervals This can best be determined by your local Munters Service Engineer However in order to maintain reliable peformance and prolong the service life of vital components regular scheduled maintenance is recommended Recommendations for perodic maintenance are given on pages 15 and 16 of this manual Subject to change without notice MA Series Dehumidifiers Munters MA 2500 C PERIODIC MAINTENANCE Inspection Maintenance Procedure Process and reactivation air Clean the filter housing and change the filter if Clean the filter housing and change the filter if filters dirty dirty If the operating conditions and or the condition of If the operating conditions and or the condition of the process air has for example a high dust the process air has for example a high dust loading then the filter may require changing more loading then the filter may require changing more frequently frequently General assembly housing Check for signs of physical d
5. for wet air outlet 10 Electrical Connections 4 5 1 Connection to mains 11 4 5 2 External Humidistat Option 11 5 OPERATION 5 1 5 2 5 3 5 4 Presstart checks 12 Check the direction of fan rotation 000 10000 12 Running checks 59 1 MAZ500KC ate du nec tet tenute 12 5 3 2 000 MA10000 C 13 Stopping ooo 14 6 MAINTENNANCE 6 1 Maintenance Procedures 14 190TGB 1022 B01 12 Munters 7 FAULT ISOLATION 7 1 Fault isolation procedures 17 TECHNICAL DATA 18 8 1 Dimensions and Weight 19 8 2 Capacity 20 Fan uu uu poatea 21 8 4 Sound Data 22 GENERAL ASSEMBLY 24 9 1 MA 2500 C Generaly Assembly 25 9 2 3000 C General Assembly 26 9 3 10000 C General Assembly 28 Subject to change without notice Munters HUNT 1 SUPPLIER INFORMATION 11 INTRODUCTION Munters dehumidifiers provide an effective and efficient method of humidity control MA C series dehumidifiers are designed for process
6. to the corrected rated flow Failure to correctly adjust the process and reactivation air flows could cause the unit to malfunction 2 Allow the unit to run for a few minutes to ensure that the operating conditions have stabilised Ensure that the indication on the reactivation temperature gauge falls within the parameters shown in the diagram on page 13 If the temperature is too low close the reactivation damper in small stages allowing the temperature indication to stabilise each time until the temperature indication lies within the specification Subject to change without notice MA Series Dehumidifiers 5 3 2 MA 3000 C MA 10000 C NO Setthe control switch to MA 10000 C Set control MA 3000 C MA 10000 C Set the main switch to position 1 QS10 Set the control switch to 1 and allow 5 secs for the fans to reach their operating speed position 2 switch to position 3 Carry outthe airflow adjustment MA 2500 C Reactivation Temperature massa ttle ttt Ad 190TGB 1022 B01 12 V Munters MA 3000 C MA10000 C Air flow adjustment To achieve the design performance the air flow dampers must be correctly adjusted in accordance with the rated airflow detailed in the Technical Specification Paragraph 8 Failure to correctly adjust the process and reactivation air flows could cause the unit to malfunction 1 Using the damper installed in the reactiviation
7. 000 3 The whole assembled unit is housed in a rugged protective frame work with a roof 22 GENERAL The rotor is divided into two sectors comprising the process sector and the reactivation sector The air to be dehumidified process air is blown through the process sector of the rotor whose structure forms narrow air flutes The walls of the rotor are impregnated with High Performance Silica Gel HPS which absorbs the moisture from the air and the resulting dry air is delivered at the dry air outlet Simultaneously a separate airflow reactivation air is heated and blown through the reactivation sector of the rotor This heated air evaporates the moisture from the reactivation sector of the rotor The moisture laden air wet air is then vented outside the humidity controlled atmosphere Whilst this sequence is occurring the rotor is slowly rotating approximately 10 revolutions per hour This rotation ensures that a new section of the rotor requiring reactivation is continuously presented to the heated reactivation sector At the same time a new section of reactivated rotor is presented to the process air ready to absorb moisture The dehumidification process is therefore repeated continuously 190TGB 1022 B01 12 Munters 2 3 DESICCANT ROTOR The desiccant rotor is the moisture absorbing part of the dehumidifier and consists of a special composite matrix of heat resistant material which houses the desicc
8. 3 MA 10000 C GENERAL ASSEMBLY FRR _ e 22 mg WAALAAD 190TGB 1022 B01 12 28 Subject to change without notice MA Series Dehumidifiers Munters MA 10000 C GENERAL ASSEMBLY Description Description Flange Reactivation ROTOR ASSEMBLY e e 23 Process Air Connecting Piece 24 Process Air Connecting Piece PROCESS FAN ASSEMBLY z REACTIVATION FAN ASSEMBLY 29 aa Reactivation Filter Damper Electric Heater Heating Elements Thermostat ATHF Silicon Seal Reactivation Seal Process Seal Combistat Reactivation Connecting Duct Flange Process Process Filter ch Connecting Piece N Impeller Fan motor Anti vibration dampers 190TGB 1022 B01 12 29 Subjectto change without notice ARGENTINA Munters Argentina BUENOS AIRES Tel 54 0 11 4902 1874 Fax 54 0 11 4902 1823 AUSTRALIA Munters Pty NORTH ALBURY Tel 61 0 260 256 422 Fax 61 0 260 258 266 AUSTRIA Munters Luftentfeuchtung WIEN Tel 43 0 1616 42 98 Fax 43 0 1616 42 98 98 BELGIUM Munters N V AARTSELAAR Tel 32 0 3 458 2434 Fax 32 0 3 458 2433 BRAZIL Munters Brasil VILA EMILIANO PERNETA Tel 55 0 418682176 Fax 55 0 41 868 2105 CANADA Munters Inc MISSISSAUGA Tel 1 905 858 5851 Fax 1 905 858 9130 CHINA Munters Beijing Ltd BEIJING Tel 86 0 10
9. 6942 9512 Fax 86 0 10 6942 9513 DENMARK Munters A S FARUM Tel 44544 95 3355 Fax 45 44 95 3955 FINLAND Munters OY HELSINGFORS Tel 358 0 9 8386 0330 Fax 358 0 9 8386 0336 FRANCE Munters France S A COLOMBES PRINCIPAL CEDEX Tel 33 0 141 1924 42 Fax 33 0 141 19 00 32 omy Zeg GERMANY Munters GmbH HAMBURG Tel 49 0 40 7 341 601 Fax 49 0 40 7 341 6131 ITALY Munters S R L ASSAGO MI Tel 3902488 6781 3902488 1171 JAPAN Munters KK TOKYO 174 Tel 81 0 3 5970 0021 Fax 81 0 35970 3197 KOREA Munters SEOUL Tel 82 0 2 5528770 Fax 82 0 2 552 8772 MEXICO Munters de Mexico S A de C V GUADALUPE N L Tel 52 9 8 327 599010 93 Fax 52 9 8 327 5994 NEW ZEALAND Munters Pty Ltd AUCKLAND Tel 64 96 34 8241 Fax 64 96 34 8237 NORWAY Munters Norge A S OSLO Tel 47 23165230 Fax 47 2229 3644 NETHERLANDS Munters Vochtbeheersing ALPHEN a d RIJN Tel 31 0 172 4332 31 Fax 31 0 172442960 POLAND Munters Poland Sp zoo GDANSK Tel 48 58 30535 17 Fax 48 58 346 34 53 SAUDI ARABIA Hawa Munters RIYADH Tel 966 1 477 1514 Fax 966 1 476 0936 Munters SINGAPORE Munters Pte Ltd SINGAPORE Tel 65 744 6828 Fax 65 744 9585 SOUTH AFRICA Munters Pty Ltd JOHANNESBURG Tel 27 0 114552550 1 2 Fax 27 0 114552553 SPAIN Munters Spain SA MADRID Tel 34 9 1640 0902 Fax 34 9 1640 1132
10. M A C User s manual V Munters Munters Europe AB 2002 Desiccant Dehumidifier MA C Series 190TGB 1022 MA Series Dehumidifiers 1 SUPPLIER INFORMATION 1 1 ET 4 1 2 uuu uu pent 4 ko u au usss 4 1 4 Misuse of Equipment 4 1 5 Safety Symbols 4 2 PRINCIPLE OF OPERATION 2 1 Product Description 5 2 2 S cH be 5 2 9 Desiecaht BOIOE uyu 5 3 PRODUCT DESCRIPTION Sch KGOMSUUCHON m 6 3 2 Standard Equipment 6 3 3 MA 2500 C MA 3000 C 10000 6 3 4 Electrical Equipment 3 4 1 MA 2500 C Control Panel 7 3 4 2 MA 3000 C Control Panel 8 3 4 3 MA 10000 C Control Panel 8 3 4 5 External Humidistat option 9 3 4 6 Combistat MA3000 C and MA10000 C 9 CONTENTS 3 4 6 High Temperature Cut Outs HTCO 9 4 INSTALATION 4 1 4 2 4 3 4 4 4 5 Delivery and Storage 9 Moving the Dehumidifier 9 Location Requirements 9 Process and Dry Air Connections 10 4 4 1 Duct for process air 10 4 4 2 Duct for rectivation air 10 4 4 3 Duct system
11. SWEDEN Munters Europe AB SOLLENTUNA Tel 46 0 8 626 6300 Fax 46 0 8 754 8594 SWITZERLAND Munters AG Z RICH Tel 41 0 1 271 1013 Fax 41 0 1 271 1019 THAILAND Munters Co Ltd BANGKOK Tel 662 645 2708 Fax 662 645 2710 UNITED KINGDOM Munters UK Ltd HUNTINGDON Tel 44 0 1480 432 243 Fax 44 0 1480413 147 USA Munters Corporation AMESBURY Tel 1 978241 1100 Fax 1 978241 1214 www munters com
12. air inlet duct and dry air outlet if fitted adjust the airflows to the corrected rated flow NO Allow the unit to run for a few minutes to ensure that the operating conditions have stabilised CD Ensure that the indication on the reactivation temperature gauge black dial falls within the parameters shown in the diagram below If the temperature is too low close the reactivation damper in small stages allowing the temperature indication to stabilise each time until the temperature indication lies within the specification MA 10000 C Reactivation Temperature 44 44 KI 44 tt LLLA _ AA IAL Symbols t Inlet air temperature t Reactivation air temperature Example for MA10000 C Inlet air temperature t Reactivation air temperature Temperature increase 13 Subject to change without notice Munters HUNT Automatic mode MA2500 C only For the unit to operate in the AUTOMATIC mode a humidistat must be installed correctly to the unit For details refer to paragraph 4 5 2 1 Set the mode switch SA33 to the AUTO position 2 Adjust the humidistat set point for the minimum relative humidity RH value Apply power to the unit as detailed in paragraph 5 3 1 operations 1 2 3 4 and 5 for the MA 2500 C and 5 3 2 for the MA 3000 C and 10000 C Ensure that the unit is operating 3 Slowly increase the humidistat set point and check that th
13. amage and clean the Check for signs of physical damage and clean the inside and outside of the unit as required inside and outside of the unit as required Process and reactivation air Check for signs of physical damage and clean the All dust and dirt in the motor cooling slots must be fans motor casings as required removed Check the electrical connections to the motors to ensure that they are not loose Check for signs of dammage and overheating Rotor drive assembly Check the drive belt for signs of damage and Check the electrical connections to the motors to ensure the tension is correct ensure that they are not loose Check for signs of see diagram below dammage and overheating If the belt needs adjusting remove the belt connector shorten the belt and re connect Check the drive belt for signs of damage and ensure the tension is correct see diagram below If the belt needs adjusting remove the belt connector shorten the belt and re connect Electrical control panel and Inspect the components and wiring in the Inspect the components and wiring in the wiring electrical control panel for signs of dammage and electrical control panel for signs of dammage and overheating overheating Check that none of the electrical connections Check that none of the electrical connections have worked loose have worked loose Reactivation heater Check that none of the electrical connections Remove any scale deposits or dirt from the have w
14. an 0 75 and must have an insulation resistance rating in excess of 500 The must be designed so that the contacts close on a rising RH set point to complete the control circuit and start the dehumidifier Subject to change without notice Munters HUNT 5 OPERATION 51 PRE START CHECKS Before starting the dehumidifier ensure that the mains power supply is isolated from the dehumidifier and carry out the following checks 1 Make sure that the all of the air inlets and outlets are not blocked 2 Carry out a visual check on all ductwork and duct insulation for correct connection and for signs of damage 3 Check that the incoming power supply cables have been correctly installed 4 humidistat has been installed check that it has been correctly positioned and has been correctly connected to the unit For details refer to the Installation Paragraph 4 5 2 and the circuit diagrams supplied with the unit 5 2 CHECK THE DIRECTION OF FAN ROTATION MA 3000 C MA 10000 C MA 3000 C MA 10000 C 1 Turn the main switch to position 1 QS10 QS10 2 Startthe unit by turning the control switch to position 1 SA31 SA31 3 Wait a few seconds and then set the control switch to position O SA31 SA31 4 Immediately stop the unit by setting the main switch to position O QS10 QS10 5 Checkthat the fans are rotating in the direction of the arrow on the fan casing 6 Ifthe fans ar
15. ant This design produces a compact structure which has an immense surface area for moisture absorption Process air A Desiccant rotor B Heater Dry air Reactivation air Wetair C Drive motor Principal of Opetation Example Desiccant Rotor Figure 2 Subject to change without notice Munters HUNT 3 PRODUCT DESCRIPTION MA C SERIES dehumidifiers are designed for dry airflows between 2 500 and 15 000 3 The whole assembled unit is housed in a rugged protective frame work with a roof 3 1 CONSTRUCTION The main components of the dehumidifier are O The rotor unit consisting of the rotor and its driving device D For process air e QG3 EUS filter e Centrifugal fan 2500 C directly driven MA 3000 C directly driven 10000 C belt driven Forreactivation air G3 EUS3 filter e Directly driven centrifugal fan on all models e Manually operated louvred damper e Electric reactivation heater The rotor and filters are accessible for both inspection and servicing via removable inspection covers Munters 3000 Fabr No 2000 XX XXXXX 3 50Hz 380V 970kW 48 0 kw Max 57 70 kW C C Munters Europe AB MA Series Dehumidifiers O Electrical control panel The electrical controls and components for the MA 2500 unit are housed in a metal box mounted on top of the main casing The 3000 C and 10000 C electrical controls are contain
16. consult Munters SYMBOLS Moisture content of process air ma isi Process air temperature Moisture content of Dry air Dry air temperature rise SEN SR B7 Sample Calculation for dehumidifier type Process air moisture content x 12 0g kg Process air temperature f 20 Dry air moisture content x 6 0g kg Dry air temperature rise At 22 C Total Dry Air Temperature t 20 22 42 190TGB 1022 B01 12 20 Subject to change without notice MA Series Dehumidifiers Munters 8 3 DIAGRAM The fan diagrams are for inlet conditions of 20 C density 1 2kg m PROCESS AIR q mis m h REACTIVATIONAIR P Totalpressure available Pa 2500 qm h 0 500 1 000 1500 2000 2500 3 000 NI ERN D N TENES CZ SE CT UN I EN m _ _ 0 10 0 20 0 30 0 40 0 50 0 60 070 0 80 qms gt MA 3000 C MA 10000 C q mh q m h gt 1 000 2 000 3 000 4 000 5000 6 000 7 000 5 000 10 000 15 000 TTT deed _ 5 5 1500 1500 1000 1000 500 NM EN LL LE LE 500 24
17. e rotating in the wrong direction wait until the fans have stopped completely and then change the rotation by switching cables L1 amp L2 around 190TGB 1022 B01 12 12 MA Series Dehumidifiers 53 RUNNING CHECKS If the dehumidifier fails any of the following checks refer to Fault Isolation Paragraph 7 1 for actions required to identify the probable cause of the fault and the corrective action required to return the unit to service N not be run for longer than 10 minutes prior to setting up the process and reactivation airflows For details refer to Paragraphs 5 3 1 and 5 3 2 To prevent damage to the fans the unit must 5 3 1 MA 2500 C 1 Set the reactivation air adjustment damper to the fully open position 2 Set the process air adjustment damper if fitted half open A damper if fitted should be installed in the dry air duct 3 Setthe mode switch to the MAN position 4 Startthe dehumidifier by turning the POWER switch to position 2 5 Ensure that the rotor is rotating smoothly at approximately 8 r p h in the direction of the red arrow upwards as viewed through the inspection hole located on the front panel MA 2500 C Air flow adjustment To achieve the design performance the air flow dampers must be correctly adjusted in accordance with the rated airflow detailed in the Technical Specification Paragraph 8 A CAUTION 1 Using the dampers installed adjust the process and reactivation airflows
18. e unit switches Off when the set point matches the the area where the humidisat is located 4 Slowly decrease the humidistat set point and check that the unit switches on when the set point falls below the RH in the area where the humidistat is located 5 Switch off the power to the unit 6 Calibrate the humidistat in accordance with the manufacturer s recommendations 7 Reset the humidisat to the desired set point 5 4 STOPPING THE UNIT Toturn the units off under normal operating conditions MA 2500 C Set the power switch SA32 to 0 3000 Set the control switch SA31 to 0 MA 10000 C Set the control switch SA31 to 0 Ensure that after apprximately 3 minutes the fans have stopped In order to dissipate any residual heat the reactivation air fan process fan and drive motor will continue to run after the unit has been switched off In an emergency situation Use the EMERGENCY STOP 190TGB 1022 B01 12 MA Series Dehumidifiers 6 MAINTENANCE The dehumidifier contains lethal voltages Ensure that the unit is isolated from the mains supply before attempting to carry out any maintenance work The dehumidifier contains areas of high temperature The unit and the surrounding ductwork must be allowed to cool down prior to maintenance work being carried out Adjustments maintenance and repairs should only be carried out by qualified personnel who are aware of the hazards of maintaining equipment
19. ed in a metal case mounted within the protective framework 3 2 STANDARD EQUIPMENT O Connections to ductwork according to ISO 7807 standards D Process and reactivation air inlets are fitted with replaceable filters that can be easily changed via the inspection covers 3 3 2500 C MA 3000 MA 10000 L1 All models require a three phase electrical supply O All of the models are fitted with multi stage electric reactivation heaters Fabrication Number Example 2000 XX XXXXX Year of Manf Week Serial No Identification Plate Figure 3 190TGB 1022 B01 12 Subject to change without notice MA Series Dehumidifiers V Munters Mantes 3 4 ELECTRICAL EQUIPMENT 3 4 1 MA 2500 C Control Panel 2 MAN AUTO s OPERATION EMERGENCY STOP REAC TEMP Switch Indicator When the switch is in this position the electric reactivation heater operates at 2 3 capacity Power Switch SA32 When the switch is in this position the electric reactivation heater operates at full capacity The unit is normally operated in the MAN mode Mode Switch SA33 It can be used in the AUTO mode if a humidistat is used to control the dehumidifier Indicates that the unit is running or is ready to start on a signal from the humidisat AUTO mode Operation of this button stops the unit but the Power Connected Lamp remains lit Indicates the reactivation temperature To be used to isolate the mains sup
20. g the rotation of the rotor Every week Filter replacement Every 3 months Check the rotor drive belt tension MA 10000 C Check the dry air fan belt tension Every 6 months Heplace the switchboard filter MA 10000 C Dry air fan and motor Every 12 months Rotor belt tensioner MA Series Dehumidifiers MA 3000 C AND MA 10000 C PERIODIC MAINTENANCE Description Take out the filter cells and remove the dust from the filter material by shaking beating it lightly Remove one of the plastic plugs in the rotor casing and check whilst the unit is operating that the rotor is rotating correctly Clean the filter housing and change the filter If the operating conditions and the condition of the air being processed has for example a high dust loading then the filter may require changing more frequently Make sure that the white side of the filter faces towards the dehumidifier Hemove the inspection cover from the rotor casing and check the belt tension of the rotor drive The tension is correct if dimension is greater than 2 3 cm If the belt needs adjusting remove the belt connector shorten the belt x and re connect EUN rS If the belt needs adjusting remove the belt connector shorten the belt and re connect Remove the hose and filter housing from the dry air fan remove the old filter cartridge clean the filter housing and fit a new filter Lubricate Remove the inspection cove
21. identification plate on unit B Fabrication number refer to identification plate on unit B Electrical specification refer to identification plate on unit B Description of spare part required B Quantity required ORDER EXAMPLE MA 3000 C Fabrication Number 96 X 30 1 41 1 Electrical Specification 3 380V 50Hz Description Process Fan Motor Quantity Required 190TGB 1022 B01 12 24 Subject to change without notice MA Series Dehumidifiers Munters 91 MA 2500 C GENERAL ASSEMBLY Process Fan Assembly EN Ce emnes ox meme 190TGB 1022 B01 12 25 Subject to change without notice Munters MA Series Dehumidifiers 9 2 MA 3000 C GENERAL ASSEMBLY MAAAAXXJ A W lt lt AAA gi y gt gt gt gt 190TGB 1022 B01 12 26 Subject to change without notice MA Series Dehumidifiers Munters MA 3000 C GENERAL ASSEMBLY Description Description Flange Reactivation ROTOR ASSEMBLY ar PROCESS FAN ASSEMBLY Reactivation Filter Damper Electric Heater Heating Elements Thermostat ATHF Silicon Seal Reactivation Seal Process Seal Combistat Reactivation Connecting Duct Flange Process Process Filter Connecting Piece N REACTIVATION FAN ASSEMBLY Impeller Fan motor Anti vibration dampers sch 190TGB 1022 B01 12 27 Subject to change without notice Munters MA Series Dehumidifiers 9
22. length of ductwork should be kept as short as possible to minimise static air pressure losses L Horizontal reactivation duct runs should be installed sloping downwards away from the dehumidifier to allow for condensate drainage On the wet air outlet ducting suitable condensate drains should be installed at low points in the ductwork Ducts mounted directly onto the dehumidifier should be adequately supported to minimise the load and stress due to the duct weight and movement Ensure that access for operation and servicing is not restricted when designing and installing ducting To reduce noise and or vibration being transmitted along rigid ductwork good quality airtight flexible connections should be fitted Dampers for balancing the airflows must be installed in the dry air outlet The correct airflow is essential for maintaining the operating efficiency of the unit If the dehumidifier is to be connected to a duct system the procedure should be as follows 4 4 1 Duct for process air If the dew point of the process air is higher than the ambient temperature of the dehumidifier there is a risk of condensation in the duct Ducts can be installed in two ways 1 The duct is mounted sloping down and away from the dehumidifier so that any condensate formed can drain away 2 If any duct does slope upwards it should be provided with drainage holes 10 mm at the lowest point so as to prevent any condensa
23. ng indicator on Unit stopped Power connected indicator on unit running indicator off Loss of performance The dehumidifier appears to be operating correctly but is not controlling the humidity 190TGB 1022 B01 12 Power supply failure Mains fuse has ruptured Manual mode Unit inadvertently switched into AUTOmatic mode without a humidistat being connected Automatic mode MA2500 C only Humidistat fault AUTOmatic mode The high temperature cut out HTCO has tripped One of the motor overload circuit breakers has trripped Heating capacity is too low Reactivation and process airflows are not in accordance with the design specification Rotor drive failure Humidistat not functioning correctly AUTOmatic mode 17 Check the power supply to the unit Replace the fuse Switch the dehumidifier into MANual mode and check that the unit starts Check the operation and calibration of the humidistat inaccordance with the manufacturers recommendations Check the filters fan impellers air inlet and air outlet ducts are free from obstructions and are not clogged with dirt Reset the cut out when the unit has cooled down Investigate the cause of the fault and rectify Reset the breaker Check the operation of the heater Measure and adjust the reactivation airflows For details refer to Operation paragraphs 5 3 1 and 5 3 2 Check the rotor drive belt and drive motor Check the ope
24. orked loose bottom of the heater compartment Check that none of the electrical connections have worked loose Check the location and wear of the seals and Check the location and wear of the seals and replace any worn or ill fitting ones Ensure that replace any worn or ill fitting ones Ensure that the seal just touches the rotor face and that the the seal just touches the rotor face and that the rotor rotates smoothly rotor rotates smoothly Humidistat if fitted Check the calibration and adjust if necessary Check the calibration and adjust if necessary All components Check all of the functions of the unit Check all of the functions of the unit Replace any defective or worn components if Replace any defective or worn components if necessary necessary In order to maintain efficient dehumidification a full capacity check should be carried out by a Munters Service Engineer 1 In order to prevent dust and or pigment particles accumulating in the rotor which will damage the rotor the dehumidifier must NEVER be operated without all of the filters being fitted Desiccant rotor Rotor Drive Belt Tension This diagram shows that the rotor drive motor belt tension must equal to or greater than 20 mm in order to comply with the required specification 2 Min 20 mm 190TGB 1022 B01 12 15 Subject to change without notice V Munters Interval Steps to be taken Every day Cleaning of filters Checkin
25. ove the transit packing and inspect the unit to ensure that no damage has occurred during transit Any visible damage must be reported to Munters prior to installation 42 MOVING THE DEHUMIDIFIER Heavy load the dehumidifier weighs in excess N of 450kg To prevent injury or damage to the dehumidifier always use approved equipment when attempting to move the dehumidifier In order to facilitate the movement and transportation of the dehumidifier it is housed within a framework that is fitted with lifiting eyes In addition the frame also has built in lifting points for fork trucks to use 43 LOCATION REQUIREMENTS To achieve optimum performance and trouble free service itis essential that the proposed installation site meets with the location and space requirements for the model being installed For dimensions weight and space requirements including service access details refer to Technical Specification Subject to change without notice Munters HUNT 44 PROCESS amp DRY AIR CONNECTIONS The process and reactivation air ducts are sized in accordance with ISO 7807 recommendations The duct connections contain tapped inserts for M8 bolt fixings When installing ductwork the following recommendations should be observed The dehumidifier has been designed to operate N at specific process airflows corresponding to the fan sizes installed and must not be directly connected to air conditioning systems The
26. ply from the unit when any form of maintenance or servicing is being carried out on the unit Unit Running lamp OPERATION HL37 Emergency Stop Button SB30 Temperature Gauge Isolator Switch QS10 Item not illustrated Pos 1 1 Pos 2 MAN 2 AUTO Power Connected Lamp MAINS Indicates that mains power has been connected to the 3 ds HL38 dehumidifier EE a Pos 0 7 Pos 1 190TGB 1022 B01 12 7 Subject to change without notice Munters HUNT 3 4 2 MA 3000 C Control Panel Isolator Switch The emergency stop must not be used to start and stop the dehumidifier during normal operation Emergency Used to start and stop the dehumidifier When the unit is switched OFF a timer is activated and the fans continue to run for the residual heat from the reactivation heater Pos 0 Reactivation power OkW Pos 1 Reactivation power 52kW Pos 2 Reactivation power 104kW To be used to isolate the mains supply from the unit when any form of maintenance or servicing is being carried out on the unit Pos 0 Switchboard disconnected from the mains Switchboard connected to the mains Pos 1 Power Connected Indicator Indicates that mains power is connected to the dehumidifier Use to stop the dehumidifier in the case of an emergency Pressing this button disconnects all of the electrical components from the mains HL38 QS10 Isolator Switch
27. r in the rotor casing and lubricate all of the joints in the belt tensioner n order to prevent dust and or pigment particles accumulating in the rotor which will damage the rotor the dehumidifier must NEVER be operated without all of the filters being fitted 190TGB 1022 B01 12 16 Subject to change without notice MA Series Dehumidifiers Munters A 7 FAULT ISOLATION The purpose of this section is to assist the operator in recognising and rectifying faults in the unit Adjustments maintenance and repairs should only be carried out by qualified personnel who are aware of the hazards of maintaining equipment containing high voltages and temperatures The dehumidifier contains lethal voltages Ensure that the unit is isolated from the mains supply 71 FAULT ISOLATION PROCEDURES before attempting to carry out any maintenance work When a fault occurs the following fault isolation checklist should be carried out before calling a service technician This will assist in identifying faults that can be easily rectified by the operator The dehumidifier contains areas of high temperature The unit and the surrounding ductwork must be allowed to cool down prior to maintenance work being carried out A A Fault Isolation checklist for MA2500 C MA3000 C MA10000 C Fault Symptom Probable Fault Corrective Action Unit stopped All indicators are off Unit stopped Power connected indicator on unit runni
28. ration and calibration of the humidistat inaccordance with the manufacturers recommendations Subject to change without notice v Munters MA Series Dehumidifiers d 8 TECHNICAL DATA PROCESS AIR 1 Rated Airflow m3 s Rated Airflow m3 h Total Pressure Available Pa Pressure drop Pa Fan Motor Power kW REACTIVATION AIR 1 Rated Airflow m s Rated Airflow m3 h Total Pressure Available Pa Pressure drop over a clean filter Pa Fan Motor Power kW ELECTRICAL POWER AND RATED CURRENT Total Power kW Rated Current 3 50Hz 380V Rated Current 3 50Hz 400V Rated Current 3 60Hz 440V REACTIVATION HEATER Reactivation Heater Power kW MISCELLANEOUS DATA Drive Motor Power W Air Filtration Standard Dust and Water Resistance Main Case 1 Figures quoted are nominal based on fan air inlet temperature of 20 C and an air density of 1 2kg m 190TGB 1022 B01 12 18 Subject to change without notice MA Series Dehumidifiers Munters 8 1 DIMENSIONS AND WEIGHT 1 Process air 3 Reactivation air 2 Dry air EN Wet air MA 2500 C WEIGHT MODEL el MSN NNN Me kg un 2500 eo 20 wo seo 55 eo MA 3000 C MA 10000 C 190TGB 1022 B01 12 19 Subject to change without notice Munters MA Series Dehumidifiers 82 CAPACITY DIAGRAM If dry air conditions below 1 g kg are required please
29. res The contents of this manual include suggested best working practices and procedures These are issued for guidance only they do not take precedence over the above stated individual responsibility and or local safety regulations 1 4 MISUSE OF EQUIPMENT Any use of the equipment other than its intended use or operation of the equipment contrary to the relevant procedures could cause injury to the operator or damage to the equipment 15 SAFETY SYMBOLS The following symbols are used in this document to alert the reader to areas of potential hazard A WARNING is given in this document to identify a hazard which could lead to personal injury Usually an instruction will be given together with a brief explanation and the possible result of ignoring the instruction A CAUTION identifies a hazard which could lead to damage to the machine damage to other equipment and or environmental pollution Usually an instruction will be given together with a brief explanation and the possible result of ignoring the instruction A NOTE is used to highlight additional information which may be helpful to you but where there are no special safety implications Subject to change without notice MA Series Dehumidifiers 2 PRINCIPLE OF OPERATION 1 Process air 3 Reactivation air Airflow Diagram MA 3000 C MA 10000 C Figure 1 2 1 PRODUCT DESCRIPTION MA C SERIES dehumidifiers are designed for dry airflows between 2 500 and 15
30. s WARNING THIS APPLIANCE MUST BE EARTHED Electrical connections should be made by qualified persons only and in accordance with local electricity regulations A MA C dehumidifiers are supplied complete with all the internal wiring installed and configured in accordance with the specified voltage and frequency as detailed on the identification plate A All of the units are designed for 3 phase AC operation 380V 3 50Hz 400V 3 50Hz 440V 3 60Hz The dehumidifier must never be operated on a voltage or frequency other than that for which it was designed and manufactured Refer to the wiring diagrams that are despatched with the unit and connect the supply to the terminals L1 L2 and L3 which are located in the control panel Before connecting the unit to the mains supply the three phases of the power supply should be checked to ensure that the supply voltage does not vary by more than 10 of the specified operating voltage This is particularly important where large loads caused by switching of ancillary equipment could cause voltage fluctuations The unit must be adequately earthed and equipped with a fused isolator to enable isolation of the electrical power for inspection and servicing The isolator should be installed within easy reach of the dehumidifier control panel The current rating of the fused isolator must be in accordance with the type and model of dehumidifier being installed For details refer
31. te entering the dehumidifier and damaging the rotor There is a 10 mm drainage hole in the bottom of the filter unit to prevent any condensate accumulating in the filter unit 190TGB 1022 B01 12 MA Series Dehumidifiers 4 4 2 Duct for Reactivation Air If the dew point of the reactivation air is higher than the ambient temperature of the dehumidifier then the process air procedure should be used for the reactiviation air 4 4 3 Duct System for Wet Air Outlet Wet air ductwork should be manufactured in corrosion resistant material and should be capable of withstanding temperatures of up to 100 C Due to the high moisture content of the air in the wet air outlet ducting condensation will readily form on the duct walls Horizontal duct runs should therefore be installed sloping downwards away from the dehumidifier to allow for condensate drainage In addition 10 mm drain holes should be drilled at the low points in the duct to prevent water accumulating in the duct If this is impossible a rising wet air duct may be used under the following circumstances O The duct is insulated 25 mm mineral wool or equivalent The ducts are drained at their lowest points via 10 mm drainage holes The ducting must always be insulated using 25mm of mineral wool or equivalent if there is a risk of freezing Subject to change without notice MA Series Dehumidifiers 45 ELECTRICAL CONNECTIONS 4 5 1 Connection to the Main
32. to Technical Specification N All screws in the control panel must be re tightened BEFORE connecting the unit to the mains for the first time The power supply cables must be of the correct size and current rating for the dehumidifier being installed For details refer to Technical Specification 190TGB 1022 B01 12 Munters 4 5 2 Humidistat MA2500 C only option MA2500 C units are pre wired so that when the units are in AUTOmatic mode they can be controlled by an externally mounted humidistat The humidistat is connected to the terminal block on the switchboard as shown on the circuit diagrams On delivery these terminal are shortcircuited Location requirements When an external humidistat is installed it should be sited in accordance with the following guidelines The humidistat should be located at least 1 to 1 5m above the floor level so that it can sense a representative level of relative humidity in the room to be controlled The humidistat should be mounted in a position where it will not be directly subjected to the influence of either dry or moist air avoid draughts from opening doorways etc The humidistat should not be located close to heat producing equipment or exposed to direct sunlight since changes in temperature will have a direct effect on the relative humidity Electrical Specification The humidistat connecting cable should have a conductor cross sectional area of not less th
33. y mounted humidistat 3 4 5 Combistat MA 3000 C and MA 10000 C The combistat is a combined two step thermostat thermometer with an indicator dial placed on the side of the casing The indicator has three different coloured dials Black Indicates the current reactivation temperature after the air heater Green This thermostat limits the reactiviation air temperature to 140 by switching off the last step steps of the reactivation power Red This thermostat limits the reactiviation air temperature to 150 C by switching off all of the reactivation power 3 4 6 High Temperature Cut Outs HTCO The units are fitted with two independent high temperature cut outs HTCO which will stop the dehumidifier if the temperature exceeds the units design specification These cut outs can be manually reset by pressing the appropriate buttons located inside the control panel for the MA2500 C and on the side of the heater for both the MA3000 and 10000 C units 190TGB 1022 B01 12 V Munters 4 INSTALLATION 41 DELIVERY AND STORAGE To ensure consistent quality and maximum reliability each dehumidifier is inspected before leaving the factory If the dehumidifier is to be put into storage prior to installation the following precautions should be observed O The dehumidifier must be protected from physical damage The dehumidifier must be stored under cover and protected from dust frost and rain Inspection Rem

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