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...
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.
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OFF position before carrying out any service work. - Use only approved lifting equipment to prevent personal injury and damage to the equipment. - Always contact Munters for service or repair. WARNING! Never lift an assembled unit using lifting eye bolts attached to the top box. Lifting eye bolts must only be used for lifting the top box during installation of a split unit.
1.5 Operation monitoring The dehumidifier is controlled and monitored from the control panel on the front of the unit, see section 5.1, Control panel. The HMI (Human Machine Interface) is used to display values and parameters, and to input settings and commands to the control system. The HMI is described in the separate supplement. 1.6 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).
3 ~ 400V 50 Hz 13,2 kW STEAM Max 13,9 kW IP33 Made in Sweden Munters Europe AB Isafjordsgatan 1 164 26 Kista, Sweden Figure 1.4 Position of identification plate Figure 1.5 Identification plate, example Explanation of "Fabr. no" on the identification plate:...
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.
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1. Process air 2. Dry air 3. Reactivation air 4. Wet air Figure 2.2 Airflow overview Dehumidifier design 190TEN–1067–J1408...
2.3 Main components, exploded view Figure 2.3 Main components 1. Reactivation fan 8. Rotor drive motor 2. Filter, reactivation air 9. Drive belt 3. Steam valve and actuator 10. Rotor 4. Process fan 11. Rotor seal 5. Steam coil 12. Filter box, process air 6.
2.4 Configuration features This chapter includes information about functions and components that can be added when ordering a MX² dehumidifier. At delivery, each unit is configured according to the configuration sheet supplied with the user manual. 2.4.1 Insulated process air inlet All dehumidifier units supplied with pre-cooled process air have insulated process air inlet.
2.4.3 Energy Recovery 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 2.4 Principle for Energy Recovery Purge Energy Recovery Purge (ERP) is an energy saving solution that recycles heat from the rotor, after the reactivation section in the rotational direction of the rotor.
Installation 3.1 Safety WARNING! All electrical equipment connections must be carried out in accordance with local regulations and by qualified personnel. Risk of electrical shock. WARNING! The unit must never be connected to a voltage or frequency other than that for which it was designed. Refer to the unit identification plate.
4. Remove all packaging material from the unit, and make sure that no damage has occurred during transportation. 5. Any visible damage must be reported in writing to Munters within 5 days and prior to installation of the unit. 6. Dispose of the packaging material according to local regulations.
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.
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Figure 3.3 Rotor box Figure 3.4 Top box Figure 3.5 Fans Figure 3.6 Filter box Figure 3.7 1. Reactivation fan 2. Process fan 3. Filter boxes Installation 190TEN–1067–J1408...
3.7.1 Assembly 1. Pull off the protection tape from the rotor box seals. 2. Make sure that the four lifting eye bolts for the top box are tightened. Figure 3.8 Lifting eye bolts for top box 3. Lift the top box onto the rotor box and make sure that the guide lips and M8 screws align in each corner, see Figure 3.9 .
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Figure 3.10 A: M8 screw seen from underneath. Figure 3.11 D: Cover plates 4. Tighten the four M8 screws (A) to compress the seals. 5. Fasten the two cover plates (D) with pop rivets (4 x 10 mm) . 6. Unscrew the lifting eye bolts from the top box to prevent lifting of the assembled unit. 7.
3.7.2 Electrical connections 1. Install the infeed box and the cable for power supply. Figure 3.14 Power supply infeed box (E) 2. Connect the cables for the reactivation fan and process fan, see Figure 3.15 , Figure 3.16 and Figure 3.17 . Figure 3.15 Fan motor wiring Figure 3.16 Process fan Figure 3.17 Reactivation fan...
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Terminal block (drive motor) Drive motor cable Brown cable Brown cable 6 (yellow) 4 (blue) 2 (green) Table 3.1 Connections for rotor drive motor 4. Connect the HTCO and PT1000, see Figure 3.19 , Figure 3.20 and Figure 3.21 . Run the cables through the rubber grommet (F).
Steam battery with flange and companion flange PN16, DN25 (1") and DN40 (1½"). The steam valve is delivered without companion flange PN16, DN15 (½") or DN20 (¾"). A data sheet for the valve and actuator are delivered with the components. Contact Munters for additional information.
3.9 Steam regulation For dehumidifiers with steam reactivation heater, the dehumidification capacity/reactivation heater effect can be regulated according to the two different principles described below. The regulating principle is set from the factory. 1. Steam pressure regulation: The steam pressure in the steam heater is regulated by a modulating reducing valve on the steam inlet.
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Both the inlet and outlet lines must have expansion bends to compensate for thermal expansion. All ■ pipework must be independently supported close to the dehumidifier to prevent strain on the steam heater. If the air temperature drops below +7 °C, a risk of freezing is presumed and a thermostat must then ■...
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>0.5 % >0.5 % 18 19 >0.5 % >0.5 % Figure 3.24 Installation of steam heater. A. Steam supply D. Condensate drainage B. Condensate return, dehumidifier E. Closed condensate return C. Condensate return, drainage F. Open condensate return 1. Thermal de-aerator 11.
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NOTE! All pipework must be supported to ensure minimal strain on the connections. NOTE! It is vital 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.
3.11 Duct installation 3.11.1 General recommendations The connections for process and reactivation air are designed in accordance with the recommendations in ISO 13351. The rectangular duct connections contain tapped inserts for M8 screws. NOTE! The dehumidifier has been designed to operate at specific process airflows (corresponding to the fan sizes installed) and must not be directly connected to air-conditioning systems.
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.
3.11.4 Duct connection dimensions for inlets MCD100-155S Figure 3.27 Reactivation air inlet 250 (5x) M8 (12x) 1250 1358 1358 1418 1408 Figure 3.28 Process air inlet Figure 3.29 Process air inlet (for installation with filter box) (for installation without filter box) C: Use hexagon head bolts (M8 x 25).
3.11.5 Duct connection dimensions for fans MCD100-155S (2x) M8 (12x) Figure 3.30 Process air outlet (dry air outlet) C: Use hexagon head bolts (M8 x 25). Installation 190TEN–1067–J1408...
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MCD100-155S 140 (2x) 134 (2x) M8 (10x) M8 (8x) MCD120 MCD100 MCD140 MCD155 Figure 3.31 Reactivation air outlet (wet air outlet) C: Use hexagon head bolts (M8 x 25). Installation 190TEN–1067–J1408...
3.12 Steam connections 1. Ensure the shut-off valves are closed. 2. Connect the reactivation heater to the steam supply. 3. Open the steam supply valves. 4. Read the manometer and make sure that the steam supply pressure is correct. 5. Check that there are no leaks from the coil or the pipe connections. 6.
3.14 External humidity transmitter The dehumidifier is delivered with one of the humidity transmitters described below. The transmitter has an output signal of 4–20 mA for temperature and humidity respectively. Humidity transmitter for relative humidity in wall mounted version (standard): ■...
Commissioning WARNING! Commissioning and initial start-up of the unit should be carried out by Munters personnel only. WARNING! The mains power supply is permanently connected to the main power switch of the unit. Risk of electric shock. 4.1 Pre-start checks 1.
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. If higher airflows are requested, consult Munters for verification.
p = Differential pressure (Pa) q = Airflow (m /h at actual temperature) Δ p = k = Fan coefficient Figure 4.1 Formula for calculation of differential pressure 4.3 Set-up and test of steam heater 1. Make sure that the shut-off valves are closed. 2.
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.
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 display, the process air fan continues to run even after the unit has stopped dehumidifying.
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 ■...
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.
6.6 Service and maintenance schedule (0–24000 hours) Service level Start Service work Operating time in hours 4000 8000 12000 16000 20000 24000 Calendar time in months Filter inspection, replace filter if necessary, function controls Preventive inspection including safety check Capacity check, rotor inspection Replacement of high-temperature protection Inspection of heater coils Replacement of drive belt and belt fastener...
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, replace filter if necessary, function controls Preventive inspection including safety check Capacity check, rotor inspection Replacement of high-temperature protection Inspection of heater coils Replacement of drive belt and belt fastener...
6.9 Maintenance of steam heater unit Before attempting to carry out any inspection or maintenance in the heater compartment, the reactivation heater must first be allowed to cool down. The following checks must be carried out before the dehumidifier is re-started: 1.
6.10 Air filter replacement 6.10.1 Preparation 1. Set the mode switch to position 0. 2. Wait 60 seconds for the heater to cool down. 3. Set the main power switch to position 0 and lock the switch. 6.10.2 Reactivation air filter 1.
6.10.3 Process air filter 1. Unscrew the screws holding one of the covers (see Figure 6.5 ). Carefully remove the cover from the filter box without damaging the gasket. 2. Pull the channel spacers straight out from the filter box to release the filters, see Figure 6.6 . 3.
The fault tracing list below provides help in identifying faults related to the steam heater unit. The list complements the fault tracing instructions found in the supplement. Before contacting Munters service, go through the list below and rectify the fault if possible.
Technical specification 8.1 Capacity diagrams Approximate capacity in kg/h. Contact your nearest Munter´s office for further information. NOTE! The figures in the diagrams are based on a rated airflow (1/1). MCD100 MCD120 kg/h kg/h 80 % RH 60 % RH 40 % RH 80 % RH 60 % RH...
8.2 Noise data 8.2.1 MCD100E 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. Ductwork for reactivation air Setup D: Reactivation and process inlet not connected to duct 4.
8.2.2 MCD120E 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. Ductwork for reactivation air Setup D: Reactivation and process inlet not connected to duct 4.
8.2.3 MCD140E 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. Ductwork for reactivation air Setup D: Reactivation and process inlet not connected to duct 4.
8.2.4 MCD155E 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. Ductwork for reactivation air Setup D: Reactivation and process inlet not connected to duct 4.
8.3 Dimensions and service space 8.3.1 Dimensions, MCD100–140S 1590 Ø 64 (2x) 3100 1300 MCD100 MCD120 MCD140 D, 3 bar D, 5 bar R - R E, 3 bar E, 5 bar Figure 8.1 Dimensions, MCD100–140S F. Item supplied loose G.
8.3.2 Dimensions, MCD155S MCD155 A, 3 bar A, 5 Bar R - R Figure 8.2 Dimensions, MCD155S B. Item supplied loose C. Option Technical specification 190TEN–1067–J1408...
8.3.3 Dimensions for units without process fan 1300 Ø 64 (2x) MCD155 Figure 8.3 Dimensions for units without process fan F. Item supplied loose 8.3.4 Service space Figure 8.4 Required service space Technical specification 190TEN–1067–J1408...
8.4 Technical data MCD100S MCD120S MCD140S MCD155S 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 2,78 3,33 3,89 4,25 Rated airflow (m 10000...
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MCD100S MCD120S MCD140S MCD155S Miscellaneous data Drive motor power, 50/60 Hz (W) 10/12 10/12 10/12 10/12 Filter class (standard) IEC protection class, unit IP33 IP33 IP33 IP33 IEC protection class, electrical panel IP54 IP54 IP54 IP54 Fan motor, winding insulation class...
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.
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