Munters DesiCool Operating Manual
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Munters DesiCool Operating Manual

Munters DesiCool Operating Manual

Air treatment system
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Original instructions
Operating manual
DesiCool™
Air Treatment System
TEN-DSC-D1401
© Munters Europe AB 2014

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Summary of Contents for Munters DesiCool

  • Page 1 Original instructions Operating manual DesiCool™ Air Treatment System TEN-DSC-D1401 © Munters Europe AB 2014...

  • Page 2: Table Of Contents

    4.2.2 Rotor ......Contact Munters ......

  • Page 3: Introduction

    1.4 Warranty The warranty is based on the terms of sale and delivery of Munters. The warranty is not valid if repairs or modifications are carried out without the written agreement of Munters, or if the unit does not operate under the conditions agreed with Munters.

  • Page 4: Inspection Of Delivery

    Inform Munters of this complaint. The unit must be fully inspected within one week from arrival. If a hidden fault is discovered, send a registered letter of complaint to the haulier within the week following delivery, and notify Munters of this. 1.6 Technical data The technical data for a specific unit can be found in the separate Data sheet issued for each unit.

  • Page 5: Safety

    2 Safety 2.1 Intended use The unit delivered by Munters must only be used for the treatment of air. This includes filtering, heating, cooling, humidifying, dehumidifying and transporting air. Munters explicitly rules out any other use. The unit is designed to meet the safety requirements, directives and standards listed in the EC Declaration of Conformity.

  • Page 6: Electrical Hazard

    DesiCool 2.2.1 Electrical hazard Figure 2.1 Electrical hazard Figure 2.2 Secure against reconnection W W W ARNING! ARNING! ARNING! 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.

  • Page 7: Physical Hazard

    DesiCool 2.2.2 Physical hazard W W W ARNING! ARNING! ARNING! Rotating hazard. The unit contains rotating fans and other moving parts. To prevent personal injury, the unit must be run with all panel doors closed and all removable panels and protective grids properly in place.

  • Page 8: Property Hazard

    DesiCool 2.2.3 Property hazard CA UTION! UTION! UTION! The unit is not intended for use in classified areas, nor for treating air polluted with solvents, dust or other aggressive, corrosive or abrasive particles. CA UTION! UTION! UTION! Failure to correctly adjust the air flows can cause malfunction of the unit.

  • Page 9: Residual Risks

    DesiCool 2.3 Residual risks In order to avoid the possible dangers in operating or maintaining the unit, necessary protections have been foreseen. However, there are still some residual risks that all personnel working with the unit must be aware The handling of fluids in refrigerating, heating or cooling circuits can be dangerous. Study the information relevant for each type of fluid to avoid dangers.

  • Page 10: Warning Signs

    DesiCool 2.4 Warning signs The following warning signs can be present on the unit, to warn the users of residual risks which can cause serious injury or death. Make sure that all personnel working with or near the unit are aware of the meaning of each sign.

  • Page 11: System Design And Function

    3 System design and function 3.1 Main function The DesiCool™ air treatment system is a highly efficient energy recovery ventilation system. It uses low cost or surplus heat to create a more comfortable indoor climate. The DesiCool combines Munters advanced desiccant dehumidification technology with evaporative cooling.
  • Page 12 DesiCool In summer time the unit produces cool and dehumidified air by a desiccant cooling process. The ambient air is dehumidified in the desiccant rotor. This process increases the air temperature. In the thermal recovery rotor the air is indirectly cooled by the evaporative cooler in the exhaust. Finally, the air is further cooled directly by the evaporative cooler in the supply.

  • Page 13: Basic Sensors Layout

    DesiCool 3.3 Basic sensors layout Figure 3.2 DesiCool basic sensors layout example 1. Differential pressure switch on filter PSW1 6. Differential pressure switch on filter PSW2 2. Input temperature and RH sensor THS1 7. Reactivation temperature sensor TS11 3. Flow control differential pressure sensor DP4 8.

  • Page 14: Pre- And Post-Treatment

    DesiCool 3.4 Pre- and post-treatment Pre- and post-treatment of the process air can be performed by the following functional components: Inlet dampers to enable isolation of the unit from the air flow. The dampers are installed on the outside ■...

  • Page 15: Main Components Description

    DesiCool 4 Main components description NOTE! Some components are optional, and individual system specifications may differ. All component pictures are examples, and may not correspond to individual units. 4.1 Desiccant rotor 4.1.1 Function 1. Process air 2. Dry air 3. Reactivation air 4.

  • Page 16: Rotor Maintenance

    DesiCool 4.1.2 Rotor maintenance The rotor surface must be inspected regularly. Perform pressure drop measurements to follow rotor aging. The desiccant rotor will not be replaced preventively, capacity monitoring will indicate when rotor replacement is necessary. 4.1.3 Rotor seals , drive belt and drive motor The rotor drive motor, drive belt and seals should be replaced if necessary, or at the maximum intervals according to the maintenance schedule.

  • Page 17: Thermal Recovery Rotor

    DesiCool 4.2 Thermal recovery rotor 4.2.1 Function Figure 4.2 Thermal recovery rotor The thermal rotor is, depending on the ambient conditions, used either for cooling or for heating of the supply air. This is done by exchanging heat between the supply air stream passing through the lower half of the rotor, and the exhaust air stream passing through the top half in the opposite direction while the rotor rotates.

  • Page 18: Water Coils

    DesiCool 4.3 Water coils 4.3.1 Cooling coils Cooling can be supplied by optional cold water coils installed in the pre- and or post-treatment sections. The coil uses chilled water, possibly mixed with glycol, as cooling medium. The coil must be connected to an external medium supply.

  • Page 19: Cleaning

    DesiCool The droplet separator is built from a patented three-plane-fluted pad that is set at an angle to the flow of air. The separator absorbs the water droplets and transports them down through the material to the drainage section. 4.3.5 Cleaning...

  • Page 20: Evaporative Coolers/Humidifiers

    DesiCool 4.4 Evaporative coolers/humidifiers Evaporative coolers/humidifiers are placed both in the supply and exhaust air streams. They can have either a direct water supply, or a recirculated system. The heart of the FA6 cooler/humidifier is a cassette made from inorganic evaporative media – GLASdek®.
  • Page 21 7. Check that the hoses and couplings do not leak. 8. Check the discharge pipe and water trap. Clean if necessary. NOTE! For more information on servicing of evaporative coolers/humidifiers, see the separate Munters FA6 manual. Main components description TEN-DSC-D1401...

  • Page 22: Fans

    DesiCool 4.5 Fans 4.5.1 Fan types Figure 4.5 Plug fan Figure 4.6 Scroll fan The unit can be equipped with plug fans or scroll fans. The fans are driven by electric motors that can be controlled by frequency converters, which enable adjustment of the air pressure and air flow from the operator panel.

  • Page 23: Filter Maintenance

    DesiCool 4.6.2 Filter maintenance W W W ARNING! ARNING! ARNING! There is a fire hazard, or risk of unit malfunction, if filters are maintained insufficiently or incorrectly. W W W ARNING! ARNING! ARNING! When replacing the filters or working in a dusty area: To protect the user from dust, wear a suitable CE marked face mask selected and fitted in accordance with the applicable safety standards.

  • Page 24: Dampers

    Keep hands clear of the dampers when they are moving. Risk of personal injury. Openings with dampers should always be covered by ducts. Any unducted air dampers should be fitted with a protective grille (not included in Munters delivery) to prevent injury from the damper blade movement.

  • Page 25: Flexible Connections

    DesiCool 4.8 Flexible connections Figure 4.10 Flexible duct connection Flexible duct connections are used in order to avoid any transmission of structure borne noise and vibrations. The length in operation is normally 120 mm (fully extended 200 mm). The flexible connections are relatively fragile and cuts must be avoided.

  • Page 26: Commissioning

    CA UTION! UTION! UTION! Commissioning and initial start-up of the unit should be carried out by Munters personnel only. 5.1 Checks before starting up Check that the fan motor transportation blocks are removed. It is always possible that during transport certain elements work loose due to vibrations. We advise you to check thoroughly that all screws and nuts, and in particular rotating parts such as turbines, pulleys, bearings, etc., are tight.

  • Page 27: Starting Up

    DesiCool Figure 5.1 Checking the direction of rotation The items below concern recirculated systems: 5. Start the pump and check the direction of rotation by touching the rubber ring with a screwdriver. Viewed from above, the motor should rotate clockwise. If it rotates in the wrong direction, switch two of the phases.

  • Page 28: Service And Maintenance

    DesiCool 6 Service and maintenance 6.1 Safety Figure 6.1 Electrical hazard Figure 6.2 Secure against reconnection Electrical hazard W W W ARNING! ARNING! ARNING! 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.
  • Page 29 DesiCool Physical hazard W W W ARNING! ARNING! ARNING! Remove hand wheels from water and steam supply valves, or otherwise lock off reopening on a component that is isolated to prevent inadvertent reopening. Alternatively, place a notice on the valve indicating that it is closed for a reason.

  • Page 30: General

    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 31: Service And Maintenance Schedule

    DesiCool 6.5 Service and maintenance schedule 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 check Preventive inspection including safety check Capacity check, rotor inspection...
  • Page 32 DesiCool 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 check Preventive inspection including safety check Capacity check, rotor inspection Replacement of HTCO Thermostats...

  • Page 33: Scrapping

    DesiCool 7 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.

  • Page 34: Supplements

    DesiCool 8 Supplements Additional information is available in supplements as applicable: Product specification data sheet ■ Control system ■ Installation ■ Humidification ■ Supplements TEN-DSC-D1401...

  • Page 35: Contact Munters

    Energieweg 69 Tel: +31 172 43 32 31 NL-2404 HE Alphen a/d Rijn vochtbeheersing@munters.nl www.munters.nl Tel.: + 48 58 305 35 17 POLAND Munters Sp. z o.o. ul. Swietojanska 55/11 Oddzial w Polsce 81-391 Gdynia dh@munters.pl Air Treatment www.munters.com.pl SPAIN Munters Spain SA Europa Epresarial.
  • Page 36 www.munters.com...

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