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Condair ME Series Operation Manual

Adiabatic air humidification/air cooling system, direct feed
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OPERATION MANUAL
Adiabatic air humidification/air cooling system
Condair ME Direct Feed
Humidification and Evaporative Cooling

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Summary of Contents for Condair ME Series

  • Page 1 OPERATION MANUAL Adiabatic air humidification/air cooling system Condair ME Direct Feed Humidification and Evaporative Cooling...
  • Page 2 Condair Ltd., except to the extent required for installation or maintenance of recipient's equipment. Liability Notice Condair Ltd. does not accept any liability due to incorrect installation or operation of the equipment or due to the use of parts/components/equipment that are not authorized by Condair Ltd.

  • Page 3: Table Of Contents

    3.3.1 Construction of the evaporative module 3.3.2 Construction of the hydraulic manifold System overviews 3.4.1 Typical system Condair ME Direct Feed (internally mounted) 3.4.2 Typical system Condair ME Direct Feed (externally mounted) Operation Important notes on operation Initial commissioning Display and operating elements of Condair control units...
  • Page 4 Product specifications Technical data Appendix Wiring diagram Condair ME Direct Feed with stage control Wiring diagram Condair ME Direct Feed with optional On/Off control unit Contents...

  • Page 5: Introduction

    Improper use of the Condair ME Direct Feed may result in danger to the user or third parties and/or impairment of material assets.
  • Page 6 If the operation manual gets mislaid, please contact your Condair representative. Language versions This operation manual is available in various languages. Please contact your Condair representative for information. Introduction...

  • Page 7: For Your Safety

    For safety and warranty reasons any action beyond the scope of this manual must only be carried out by personnel with appropriate industry recognised qualifications or training. It is assumed that all persons working with the Condair ME Direct Feed are familiar and comply with the appropriate local regulations on work safety and the prevention of accidents.
  • Page 8 When inadequately operated and/or poorly maintained micro-organisms (including the bacterium which causes Legionnaire’s disease) may grow in the evaporative module, the water tank and the water system of the Condair ME Direct Feed and may affect the air in the AHU/air duct.
  • Page 9 Preventing unsafe operation If it is suspected that safe and hygienic operation is no longer possible, then the Condair ME Direct Feed should immediately be shut down and secured against accidental power-up according to chapter 4.6. This can be the case under the following circumstances: –...

  • Page 10: Product Overview

    4.5 m/s (886 fpm). Evaporative module Blanking ● ● Kit to secure Condair ME and prevent air-bypass within the duct / AHU. Stage valves ––– ● Valve kit which facilitates stage control of direct feed systems using customer controls or the ME Direct Feed Stage Control Unit.

  • Page 11: Product Designation / Which Model Do You Have

    Product designation / Which model do you have The product designation and the most important unit data (e.g. serial number, evaporative module product key, etc.) are found on the rating plates fixed on the left side of the evaporative module and on the right side of the control unit (if applicable).

  • Page 12: Construction Of The System Components

    Construction of the system components 3.3.1 Construction of the evaporative module Air flow direction Upstands Evaporative cassettes (F75, F85, F95, P85, P95, Tank connector ø50 mm, or ø54 mm (2.125"), C85 or C95) as applicable Distribution heads Rating plate Blanking plates (option) Droplet separator, mandatory for high face velocities Mounting frame for evaporative cassettes (allows velocities up to 4.5 m/s (886 fpm))

  • Page 13: Construction Of The Hydraulic Manifold

    3.3.2 Construction of the hydraulic manifold Fixing bracket Connector stage 1 Drain valve (option or supplied by others) Connector stage 2 Supply valve (option or supplied by others) Connector stage 4 Connector stage 5 Stage valve 2 (option or supplied by others) Connector stage 3 10 Purge valve (option or supplied by others) Fig.

  • Page 14: System Overviews

    Wall feed through and stage valves) Water supply line Shut-off valve Air flow direction Purge valve Tank drain with trap AHU drain with trap Fig. 5: Typical system Condair ME Direct Feed (internal installation with optional valves) Product Overview...

  • Page 15: Typical System Condair Me Direct Feed (Externally Mounted)

    Purge valve Air flow direction Hydraulic manifold (with op- tional supply valve, drain valve and stage valves) AHU drain Tank drain with trap with trap Fig. 6: Typical installation Condair ME Direct Feed (external installation with optional valves) Product Overview...
  • Page 16 Drain solenoid valve (NC) valve (NO) Water tank Drain trap (building side) Tundish (building side) Fig. 7: Schematic flow diagram Condair ME Direct Feed System (internally mounted) Stage valve Hydraulic manifold (optional) Shut-off valve with Inlet solenoid strainer valve (NC)
  • Page 17 Functional description As standard the Condair ME Direct Feed is operated with On/Off control (requires a drain and a supply valve fitted to the hydraulic manifold (both valves available as options) and a customer supplied On/Off control or the optional direct feed On/Off control unit).

  • Page 18: Operation

    Important notes on operation Qualification of personnel The Condair ME Direct Feed must be commissioned and op erated only by personnel familiar with the system and adequately qualified for the respective tasks. It is the owner’s responsibility to verify proper qualification of the operating personnel.

  • Page 19: Initial Commissioning

    If you are unsure of the quality of your water please consult your Condair distributor for advice.
  • Page 20 5.9 of this manual. 4. Validate the system controls and enable a full demand to unit. If the Condair control unit is used, check for correct connections and operation when switched on. 5. If using a Condair control unit the system should purge the water supply line when first switched on.

  • Page 21: Display And Operating Elements Of Condair Control Units

    Electrical isolator Note: the electrical isolator (supplied by the customer) must be installed in the mains supply line! Fig. 9: Display and operating elements Condair control units (option) DANGER! Risk of electric shock! Mains supply to the control unit is not interrupted by switching off the <Humdification/Cooling On/ Off>...

  • Page 22: Start Up For Normal Operation

    Damaged systems and/or systems with damaged or faulty installation must not be operated. 3. If Condair ME Direct Feed has been disconnected from the mains for more than 48 hours: •...

  • Page 23: Notes On Operation

    Important notes on operation If your system is equipped with the optional Condair control unit and the optional purge valve, the water supply line is purged every 20 hours for approximately 3 minutes in order to flush water supply line.

  • Page 24: Decommissioning The System

    Condair ME Direct Feed is not being used for a prolonged period of time. Only the <Hum- dification/Cooling On/Off> switch should be switched off. This keeps the hygiene functions (e.g.

  • Page 25: Maintenance

    The instructions and details for maintenance work must be followed and upheld. Only carry out the maintenance work described in this documentation. The Condair ME Direct Feed must be maintained in the prescribed intervals, the cleaning work must be carried out correctly.

  • Page 26: Maintenance Intervals

    Note: We recommend to perform a minor service between two complete system service. Maintenance guide The Condair ME unit will form part or your cold water system and as such require you to undertake certain duties with regards to local regulations and bylaws concerning the control of Legionella microbes in water systems.
  • Page 27 Operations Minor Complete Service System Service Check distribution headers Clean distribution headers ––– Clean front section of tank Check droplet separator (if applicable) and evaporator cassettes in suit- able condition Lightly brush evaporator cassettes if necessary, replace if heavily soiled –––...

  • Page 28: Dismantling And Installation Of Components For Maintenance

    Dismantling and installation of components for maintenance WARNING! A full risk assessment must be completed by suitably trained personnel prior to carrying out mainte- nance of the ME unit. There may be increased risk when carrying out maintnenance on systems that necessitate working at height.

  • Page 29: Dismantling And Installation Of The Evaporative Module

    5.4.1 Dismantling and installation of the evaporative module 1. Take the Condair ME Direct Feed out of operation as described in chapter 4.6 and allow to drain and dry. 2. Switch the AHU off, and isolate the power and water supply to the AHU.

  • Page 30: Health And Safety Requirements

    This work should only be carried out by fully trained specialist organisations or individuals. 2. The optional Condair ME Direct Feed control unit must be left powered on to allow auto- matic flushing and cleaning cycles to occur. If the optional Condair ME Direct Feed control unit is powered off for prolonged periods, water stagnation might occur and contamination result, so the system, including any storage tanks or vessels should be drained and left dry.

  • Page 31: Routine Water Sampling And Testing

    4. Clean and disinfect the system in accordance with local regulations and bylaws, and the instructions in this manual. 5. The Condair ME Direct Feed system MUST be connected to a clean, wholesome mains water sup- ply and it is recommended that the supply water is chlorinated. It is the responsibility of the user to ensure that the water system complies with local regulations and bylaws, particularly those for the control of Legionella microbes.

  • Page 32: Cleaning And Disinfection

    1. A qualified person appointed by the customer must risk assess the cleaning and disinfection operation. This assessment should include but is not limited to observance of local regulations and the use of PPE, working at heights and ensuring a full understanding of the Condair ME Direct Feed. 2. Coordinate with relevant responsible persons.

  • Page 33: Cleaning And Disinfection Method Statement

    • If the unit is already in operation, check for correct operation. • Ensure the Condair ME system is OFF and isolated. • If the system has been without power for more than 48 hours, flush the water supply. •...
  • Page 34 Drain neutralised disinfection solution into appropriate drain (depending on Risk Assessment) . • Always leave work area clean, dry and tidy. Step 6 - Re-assemble evaporative module and Re-start the Condair ME system • Re-assemble evaporative module and restart ME system. Refer to the corresponding section.

  • Page 35: Fault Elimination

    Check design conditions of AHU. and increase temperature. Humidity/cooling demand pre- Shut-off valve in the water supply Open shut-off valve. sent however the Condair ME line closed. Direct Feed does not humidify. Site control are not correct. Prove controls and control module.

  • Page 36: Notes On Fault Elimination

    Notes on fault elimination – For the elimination of faults set the Condair ME Direct Feed out of operation as described in chapter 4.6, disconnect control unit from the mains and close shut-off valve in the water supply line. DANGER! Make sure the control unit is separated from the mains (check with voltage detector) and the shut- off valve in the water supply line is closed.

  • Page 37: Taking Out Of Service/Disposal

    Taking out of service/Disposal Taking out of service If the Condair ME Direct Feed must be replaced or if the humidification system is not needed any more, proceed as follows: 1. Take the Condair ME Direct Feed out of operation as described in chapter 4.6.

  • Page 38: Product Specifications

    Product specifications Technical data Condair ME Direct Feed With optional With optional On/Off control unit Stage control unit Supply voltage optional On/Off and stage control unit 100...240 VAC/50...60 Hz Power consumption 40 W 100 W Control signals On/Off 0..10 VDC 2...10 VDC...

  • Page 39: Appendix

    LED 1 LED white (control unit switched ON) Terminal mains supply voltage LED 2 LED green (humidification ON) Terminals 24V valves Mains filter Ground terminals valves Fig. 10: Wiring diagram Condair ME Direct Feed with optional stage control unit Appendix...

  • Page 40: Wiring Diagram Condair Me Direct Feed With Optional On/Off Control Unit

    Terminal mains supply voltage LED 2 LED green (humidification ON) Terminal valves and On/Off controller Mains filter Terminals 24V valves External electrical isolator Ground terminals valves Fig. 11: Wiring diagram Condair ME Direct Feed with optional On/off control unit Appendix...
  • Page 41 Notes...
  • Page 42 Notes...
  • Page 43 Warranty Condair Inc. and/or Condair Ltd. (hereinafter collectively referred to as THE COMPANY), warrant for a period of two years after installation or 30 months from manufacturer’s ship date, whichever date is earlier, that THE COMPANY’s manufactured and assembled products, not otherwise expressly warranted, are free from defects in material and workmanship.
  • Page 44 U.S.A. 835 Commerce Park Drive Ogdensburg, New York 13669 CANADA 2740 Fenton Road Ottawa, Ontario K1T 3T7 TEL: 1.866.667.8321 FAX: 613.822.7964 EMAIL: na.info@condair.com WEBSITE: www.condair.com...

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Me direct feed series

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