Cotes C105 Operating
  1. Manuals
  2. Brands
  3. Cotes Manuals
  4. Dehumidifier
  5. C105
  6. Operating

Cotes C105 Operating

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
COTES C105 OPERATING AND SERVICE HANDBOOK
Cotes dehumidifier
Manual number:
Revision:
COTES ALL ROUND
C105
How to install, set up, operate and service your
Cotes dehumidifier
C105E/C105D
140739
D
page 1/67

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the C105 and is the answer not in the manual?

Questions and answers

Related Manuals for Cotes C105

Summary of Contents for Cotes C105

  • Page 1 COTES C105 OPERATING AND SERVICE HANDBOOK page 1/67 Cotes dehumidifier C105E/C105D Manual number: 140739 Revision: COTES ALL ROUND C105 How to install, set up, operate and service your Cotes dehumidifier...
  • Page 2 COTES C105 OPERATING AND SERVICE HANDBOOK page 2/67 COTES.COM...

  • Page 3: Table Of Contents

    3/67 CONTENTS SECTION 1 / GENERAL BACKGROUND ABOUT THIS HANDBOOK ABOUT COTES SECTION 2 / THE DEHUMIDIFIER ABOUT THE COTES C105 RANGE OF DEHUMIDIFIERS HOW IT WORKS FEATURES AND BENEFITS SECTION 3 / TECHNICAL DETAILS SERIAL NUMBER/IDENTIFICATION SPECIFICATIONS ASSEMBLIES AND COMPONENTS...
  • Page 4 COTES C105 OPERATING AND SERVICE HANDBOOK page 4/67 ELECTRICAL DIAGRAMS APPENDIX CASCADE HEAT CONTROLLER APPENDIX ALTERNATIVE HEATING SOURCES (if applicable) APPENDIX ALTERNATIVE HEATING SOURCES APPENDIX C...

  • Page 5: Section 1 / General Background

    This handbook is mainly intended for use by technicians who install and operate this Cotes dehumidifier unit, who carry out preventive maintenance and who replace defective parts.
  • Page 6 COTES C105 OPERATING AND SERVICE HANDBOOK page 6/67 SYMBOLS USED IN THIS HANDBOOK This tells you to perform a particular action Important to note, because items in the dehumidifier can cause injury or affect people’s health You need to pay special attention to this NOTE It is each operator’s responsibility to read and understand this manual and other information...

  • Page 7: About Cotes

    Cotes humidity management technologies enable you to control the levels of moisture in the air inside any building, installation or facility, using only a bare minimum of energy.

  • Page 8: Section 2 / The Dehumidifier

    SECTION 2 / THE DEHUMIDIFIER ABOUT THE COTES C105 RANGE OF DEHUMIDIFIERS The Cotes C105 range of dehumidifiers is designed and configured for a wide range of industrial uses. Prominent among these is humidity management in storage facilities and basement areas, in water works and in many kinds of process industry in which stable, well-controlled air conditions are crucial.
  • Page 9 COTES C105 OPERATING AND SERVICE HANDBOOK page 9/67 Configuration priorities The Cotes C105 range is available with four different control configurations – Configuration-A, Configuration-B, Configuration-C and Configuration-D. Control Configuration-A is stripped down to a minimum of features and is therefore not equipped with a PLC screen interface.
  • Page 10 C105 dehumidifier or can be retrofitted to an existing C105 installation. In case you would like to add an external module to you C105 dehumidifier, please contact your local COTES dealer, or contact COTES directly, for more information.
  • Page 11 The dehumidifier is designed for dehumidifying/conditioning atmospheric air only – filtered with at least a G4 filter. Unless specifically stated in the manual or in a separate agreement with Cotes or a Cotes dealer, this dehumidifier must not be used for the following purposes: •...

  • Page 12: How It Works

    HOW IT WORKS Two flows of air The effect of Cotes adsorption dehumidifiers basically stems from the action of two flows of air. The drying process (A to E) The incoming moisture-laden flow of air (process air) (A) enters one side of the cabinet and gets filtered by a process air filter (B).
  • Page 13 All models of Cotes adsorption dehumidifiers are fitted with filters to remove undesirable particles or other pollutants from the incoming process and regeneration air. Filters of the G4 class are fitted to Cotes C105 units as standard in order to filter the incoming process air.

  • Page 14: Features And Benefits

    COTES C105 OPERATING AND SERVICE HANDBOOK page 14/67 FEATURES AND BENEFITS Highlighted features How customers benefit Appearance/cabinet Eye-catching industrial design appearance. Visually attractive units that can be mounted in highly visible positions. Robust structure. Longer service life. Better return on investment.
  • Page 15 COTES C105 OPERATING AND SERVICE HANDBOOK page 15/67 Access Large door that provide rapid, easy access. Savings on maintenance and service work. Less downtime means greater operating efficiency. Filters that are easy to get out, and quick to Savings on maintenance and service work.

  • Page 16: Section 3 / Technical Details

    16/67 SECTION 3 / TECHNICAL DETAILS SERIAL NUMBER/IDENTIFICATION This is the installation and service handbook for your Cotes dehumidifier. The serial number/identification code for your specific model is located on the right side of the dehumidifier (see drawing below).

  • Page 17: Specifications

    COTES C105 OPERATING AND SERVICE HANDBOOK page 17/67 SPECIFICATIONS Please note that specifications and controls given in this handbook are in some situations approximate. Table 1 Technical data C105E/C105D C105E C105D Type Model Dry air, nominal** 4100 6100 8800 8800...
  • Page 18 998x695 (Ø630) outlet Cable glands: 2xM63 – Cable size / sealing range: 36-48 Power cable size * * Power cables are not part of the Cotes delivery. If the selected cable is smaller than sealing range, install a suitable cable gland.

  • Page 19: Assemblies And Components

    ASSEMBLIES AND COMPONENTS Customised to meet your needs Cotes dehumidifier units are based on a modular design that enables our customers to select from a broad range of carefully selected components and assemblies, to meet specific installation and operating requirements.
  • Page 20 COTES C105 OPERATING AND SERVICE HANDBOOK page 20/67 COTES.COM...
  • Page 21 COTES C105 OPERATING AND SERVICE HANDBOOK page 21/67...
  • Page 22 COTES C105 OPERATING AND SERVICE HANDBOOK page 22/67...

  • Page 23: Spare Parts

    COTES C105 OPERATING AND SERVICE HANDBOOK page 23/67 SPARE PARTS C105E/C105D dehumidifier COTES.COM...
  • Page 24 COTES C105 OPERATING AND SERVICE HANDBOOK page 24/67 Table 3: Spare parts list C105E/C105D C105E C105D Type Part Process air fan 777331 777332 777333 777331 777332 Regeneration air fan 777341 777342 777341 777342 Gear motor 777271 Pulley 120405 Taper Bush...
  • Page 25 COTES C105 OPERATING AND SERVICE HANDBOOK page 25/67 Configuration B Humidity sensor (not shown) 140655 Pressure switch for filters 126844 Rotor guard Sensor: 823182, Cable: 823183 140621 Configuration C + Configuration D I/O board (not shown, placed on the 112086...

  • Page 26: Sound Levels

    Please check the maximum sound level permitted for the installation you are working with and select the sound dampening and silencers needed for the dry air outlet duct and the regeneration air outlet duct accordingly. These are not included with the C105 dehumidifier. Measuring sound levels The sound/noise levels for the dehumidifier are shown on page 17.

  • Page 27: Section 4 / Installation

    Handling Cotes dehumidifiers are built to be very robust, so there is no need for special handling, apart from normal sensible care and attention. See the next two pages for lifting and handling instructions, and note the measurements on the drawing below.
  • Page 28 The lifting pipes that go through the floor frame of the unit, or the H-beam lifting frame, are not part of the dehumidifier unit and are not delivered by Cotes. The unit must be lifted evenly at all four corners to prevent the unit from toppling over. Lifting the unit must be done by a professional.
  • Page 29 COTES C105 OPERATING AND SERVICE HANDBOOK page 29/67 Lifting by forklift: The unit can also be moved by a forklift using the specified lifting slots. Remove both the front and back cover plates on the floor frame to provide access to the forklift lifting slots.
  • Page 30 Where not to mount it Unless it has been arranged with Cotes and special considerations have been made, the unit should not be placed outdoors. The unit should not be placed inside an office or in other locations where the sound pressure level must be kept to a minimum.
  • Page 31 To ensure low pressure drop and low sound pressure levels, please request assistance from a company that specialises in ductwork. The C105 dehumidifier is available with either a rectangular duct connection kit, or a circular duct connection kit. Please see the illustrations on page 20-21 for the measurements of duct connections.
  • Page 32 COTES C105 OPERATING AND SERVICE HANDBOOK page 32/67 Regeneration air: The ducts connected to the regeneration air intake should suck in air from the outdoors. The ducting for the outgoing humid regeneration air should lead the air back outside the building.
  • Page 33 COTES C105 OPERATING AND SERVICE HANDBOOK page 33/67 There must be at least 1200mm unrestricted access in front of the dehumidifier for easy access. Note that dimensions for the rectangular ducts are internal measurements. COTES.COM...
  • Page 34 The regeneration air inlet and outlet must be placed with sufficient distance to each other to avoid rebreathing. If possible, Cotes recommends placing the regeneration inlet and outlet on each side of a corner – or some similar location – to reduce the risk further. If nothing is done to prevent the regeneration air from "short-circuiting", a capacity loss is possible and the risk of condensation inside...

  • Page 35: How To Commission This Dehumidifier

    COTES C105 OPERATING AND SERVICE HANDBOOK page 35/67 HOW TO COMMISSION THIS DEHUMIDIFIER NOTE Only trained/authorised electricians are allowed to carry out any work required in the electrical box of this Cotes dehumidifier. When the cover of the electrical box is open, the power supply must be switched off at the main switch (load switch).
  • Page 36 COTES C105 OPERATING AND SERVICE HANDBOOK page 36/67 d) If the dehumidifier starts up as described above, then go to e) If the dehumidifier does not start, you should check the humidity set point (Configuration-B, Configuration-C and Configuration-D only). If set point is higher than measured by the humidity sensor, the dehumidifier will not start (unless the “Always On”...
  • Page 37 To adjust the Variable Speed Drive setting, the power must be ON! Only trained/authorised electricians with the proper safety equipment are allowed to carry out any work required in the electrical box of this Cotes dehumidifier. Power Regeneration fan setting:...
  • Page 38 COTES C105 OPERATING AND SERVICE HANDBOOK page 38/67 NOTE Change only parameters given in this instruction, any other changes can damage the machine. To setup everything, use the buttons shown on the picture (up and down arrow, MODE and ENT).
  • Page 39 COTES C105 OPERATING AND SERVICE HANDBOOK page 39/67 g) How to adjust the Process air fan using the Potentiometer: Note that the process fan speed must be adjusted based on the actual measured air flow. If the process air flow is not adjusted to nominal values, the dehumidifying capacity may be reduced.

  • Page 40: Section 5 / Operation

    COTES C105 OPERATING AND SERVICE HANDBOOK page 40/67 SECTION 5 / OPERATION HOW TO OPERATE WITH BASIC-PLR BASED DEHUMIDIFIER Configuration-Basic PLR is designed for maximum dehumidification, and the standard setting is that it is kept running at all times. This configuration is kept as simple as possible, which is why there is no dehumidification management installed.
  • Page 41 EXTERNAL HUMIDITY MANAGEMENT You can purchase an external humidity hygrostat to manage when the dehumidifier is operating or not. Contact Cotes or your Cotes dealer for more information. HMI PANEL The HMI panel is mounted into main PLR module inside the electrical cabinet.
  • Page 42 42/67 CONSTANT PROCESS FLOW FEATURE Cotes dehumidifiers provide a constant process air flow (CPF) mode. This means the process fan is always on, regardless of humidity levels. To activate this constant process air flow mode, you stop the dehumidifier with the start/stop button on the front panel, then press the “0”...
  • Page 43 COTES C105 OPERATING AND SERVICE HANDBOOK page 43/67 To change current date press “1” and to change current time press “2”. Enter the correct date values in the order: day/month/year. To “jump” from dd to mm to yy, press the “right arrow” next to the “OK”...

  • Page 44: How To Operate With Plc Based Dehumidifier

    COTES C105 OPERATING AND SERVICE HANDBOOK page 44/67 HOW TO OPERATE WITH PLC BASED DEHUMIDIFIER The dehumidifier needs to be turned on at the main switch. After a while the PLC overview screen will appear. Overview menu Actual measurement and target value for % relative humidity and temperature – within the space concerned (as registered by external sensors that are not part of the dehumidifier).
  • Page 45 COTES C105 OPERATING AND SERVICE HANDBOOK page 45/67 State of the regeneration air filter – If this is yellow, the filter should be replaced soon. If this is red, the service interval has been exceeded. A mechanical pressure switch triggers a warning (yellow alarm) if the set point is reached.
  • Page 46 COTES C105 OPERATING AND SERVICE HANDBOOK page 46/67 MAIN menu START/STOP Turn the dehumidifier on and off. HUMIDITY Setup target for relative humidity and/or dew point.. PROGRAMS menu. This is where you decide how you want the dehumidifier to operate: •...
  • Page 47 47/67 First setup of PLC dehumidifier The basic programs for Cotes dehumidifiers are ALWAYS ON and RH ON/OFF. You should choose the program best suited to your needs. The ALWAYS ON program is the simplest – it runs the dehumidifier at full capacity all the time.

  • Page 48: Section 6 / Service And Repair

    HOW TO SERVICE AND REPAIR THIS DEHUMIDIFIER Service and maintenance work on this dehumidifier Cotes designs its dehumidifier units so that they are as robust as possible, and only need a minimum of service and maintenance. None of the components require lubrication or adjustment.
  • Page 49 You should never just turn off the power to the dehumidifier while it is running. The correct procedure is to press STOP C105 DEHUMIDIFIER (Configuration-A; press the operating button), after which the machine runs a cooling cycle before the regeneration air fan stops. Turning off the dehumidifier properly prevents any over-heating.
  • Page 50 Easy access for quick service The C105 dehumidifier features three service doors, which are easy to open and close. All parts that need service can be accessed from the front, through these doors. Behind the first two doors are the rotor, heating elements, fans, gear motor, etc.
  • Page 51 COTES C105 OPERATING AND SERVICE HANDBOOK page 51/67 The electrical switchboard is divided into two separate electrical switchboards (where the contacts, fuse breakers, thermal relays, etc. are mounted). The first switchboard is the “control board" that determines how the dehumidifier runs. The second switchboard is the “cascade heating board”, which controls the heating elements.
  • Page 52 COTES C105 OPERATING AND SERVICE HANDBOOK page 52/67 Replacing filters The following is standard procedure for replacing the filters: • Loosen the finger screws on the filter doors • Replace the filters...
  • Page 53 53/67 Replacing fans All C105 dehumidifiers are fitted with a 400V EC electric motor (for the process air fan) and a 400V Norm electric motor (for the regeneration air fan). It is critical that the regeneration fan is connected correctly, to prevent it rotating the wrong way.
  • Page 54 COTES C105 OPERATING AND SERVICE HANDBOOK page 54/67 Replacing PLC The following is standard procedure for replacing the PLC unit. • Open the right door • Remove the cover of the electrical cabinet on the door. • Disconnect cables for the PLC •...
  • Page 55 COTES C105 OPERATING AND SERVICE HANDBOOK page 55/67 Replacing electrical board The following is standard procedure for replacing an electrical board • Open the right door • Remove the cover plate on the electrical cabinet on the door • Disconnect all cables and sensors connected to the electrical board •...
  • Page 56 COTES C105 OPERATING AND SERVICE HANDBOOK page 56/67 Replacing gear motor Remove the drive belt from the pulley, and then remove the gear motor after disconnecting all electrical connections. You can then fit a replacement gear motor. When re-starting the unit, check that the rotor is moving. If not, check the connections to the motor.
  • Page 57 COTES C105 OPERATING AND SERVICE HANDBOOK page 57/67 Replacing electric heaters All electric heaters are mounted from the front in the heater section, in the top of the dehumidifier. To replace these units, remove the cover plate, disconnect the wiring and unscrew the heater plates.
  • Page 58 COTES C105 OPERATING AND SERVICE HANDBOOK page 58/67 Replacing the rotor and shaft The following is standard procedure for replacing the rotor. • Open all three doors • Remove the middle door completely by removing the bolt, that acts as a hinge, in the bottom of the door.
  • Page 59 59/67 The next step is to remove the rotor shaft. This can be done from either side, but Cotes recommends removing it from the right (the electrical cabinet side). The rotor shaft is held in place by a bracket on both sides of the rotor.
  • Page 60 COTES C105 OPERATING AND SERVICE HANDBOOK page 60/67 With the rotor shaft removed, the rotor can now be pulled out. Carefully slide out the rotor (including the Teflon® discs).

  • Page 61: Troubleshooting

    COTES C105 OPERATING AND SERVICE HANDBOOK page 61/67 TROUBLESHOOTING Problem Cause Action The unit (or parts of One or more fuse breakers have Turn all fuse breakers on it) will not start after been triggered a power surge/an electrical short...
  • Page 62 PLR Screen Main power supply phase Check connection to the electro- displays “Phase sequence error. energetic system. sequence error! Main power supply asymmetry. Check voltage between phases. (104K1)” If you have any queries or questions, please contact your Cotes dealer.

  • Page 63: Section 7 / Formalities And General/Legal Info

    AND GENERAL/LEGAL INFO WARRANTIES Warranty conditions The Cotes factory warranty is only valid if a documented programme of service and preventive maintenance has been carried out. Maintenance must have been carried out at intervals of six months or less. Documentation for this must be in the form of a written log/journal, with attested entries.

  • Page 64: Legal Notices

    The information contained in this publication and the products and equipment described herein are subject to change at any time without prior notice. Cotes A/S has no obligation to inform buyers of the products and equipment of such subsequent changes.

  • Page 65: Eu Declaration Of Conformity

    DK-4200 Slagelse www.cotes.com info@cotes.com VAT no. 15 20 03 32 Declares at its own liability that the following models of Cotes adsorption dehumidifiers: C30, C35, C65, C105 are covered by this declaration complying with the following directives: Machinery Directive 2006/42/EC Ecodesign 327/2011 directive 2009/125/EF as regards the eco-design fans driven by motors with input power and 125W to 500kW.

  • Page 66: How To Update And Improve This Cotes Dehumidifier

    Extra insulation The doors of the Cotes dehumidifier can be insulated to ensure that the sound pressure level of the unit is reduced and to ensure that all energy (both cooling and heating) is kept inside the unit.

  • Page 67: Whom To Contact

    COTES C105 OPERATING AND SERVICE HANDBOOK page 67/67 WHOM TO CONTACT Help when and where you need it Contact Cotes in Denmark or your local dealer: Cotes contact information: Cotes A/S Ndr. Ringgade 70C 4200 Slagelse Denmark +45 5819 6322 info@cotes.com...

Table of Contents