Cotes C105 User manual

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

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COTES.COM

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CONTENTS
SECTION 1 / GENERAL BACKGROUND 5
ABOUT THIS HANDBOOK 5
ABOUT COTES 7
SECTION 2 / THE DEHUMIDIFIER 8
ABOUT THE COTES C105 RANGE OF DEHUMIDIFIERS 8
HOW IT WORKS 12
FEATURES AND BENEFITS 14
SECTION 3 / TECHNICAL DETAILS 16
SERIAL NUMBER/IDENTIFICATION 16
SPECIFICATIONS 17
ASSEMBLIES AND COMPONENTS 18
SPARE PARTS 23
SOUND LEVELS 26
SECTION 4 / INSTALLATION 27
HOW TO INSTALL A C105E/C105D DEHUMIDIFIER 27
HOW TO COMMISSION THIS DEHUMIDIFIER 35
SECTION 5 / OPERATION 40
HOW TO OPERATE WITH BASIC-PLR BASED DEHUMIDIFIER 40
HOW TO OPERATE WITH PLC BASED DEHUMIDIFIER 44
SECTION 6 / SERVICE AND REPAIR 48
HOW TO SERVICE AND REPAIR THIS DEHUMIDIFIER 48
TROUBLESHOOTING 61
SECTION 7 / FORMALITIES AND GENERAL/LEGAL INFO 63
WARRANTIES 63
LEGAL NOTICES 64
EU DECLARATION OF CONFORMITY 65
HOW TO UPDATE AND IMPROVE THIS COTES DEHUMIDIFIER 66
WHOM TO CONTACT 67

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ELECTRICAL DIAGRAMS APPENDIX
CASCADE HEAT CONTROLLER APPENDIX
ALTERNATIVE HEATING SOURCES (if applicable) APPENDIX
ALTERNATIVE HEATING SOURCES APPENDIX C

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SECTION 1 / GENERAL BACKGROUND
ABOUT THIS HANDBOOK
This is the installation and service handbook for your Cotes dehumidifier.
You should read the whole handbook before installing and/or starting the dehumidifier unit for the first
time. It is important that you and your colleagues are familiar with the correct operating procedures
and all precautionary safety measures, in order to avoid any damage to the surroundings, materials
or installations, as well as to prevent any personal injury.
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.
Anyone using Cotes dehumidifier units, or whose responsibilities include supervising their operation,
will also benefit from reading this handbook and from consulting it as a practical help should the need
arise.
Product number for this handbook
The product number of this service handbook is 140739.
This is the number you need to give us if you would like to order additional copies for your staff,
colleagues or service personnel, or for technical staff from outside your company.

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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
and to employ the correct operating and maintenance procedures.

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ABOUT COTES
Cotes humidity management technology –cost-effective and energy-efficient
The moisture in the air all around us has surprising –and often costly –effects on the materials,
structures and processes at the heart of virtually all business processes and industrial activity.
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.
And effective control of the basic parameters for your operations is good business.
World leader
Cotes is one of the world’s leading experts in the field of adsorption dehumidification, providing
technology and expertise that enable companies to achieve better control of the humidity always
present in the air.
Better management of the humidity in the air also makes it possible to improve and optimise a wide
range of industrial processes, prevent damage and corrosion in many types of structures, and reduce
energy consumption in all kinds of installations where air specifications are important.
Big benefits
Cotes dehumidification units provide exceptional advantages.
•Our know-how and experience make sure each customer gets the right equipment to tackle all
the practical needs and operating priorities associated with the specific installation
•Our units are exceptionally reliable, and can withstand even harsh treatment unusually well
•They are very easy to maintain and service
•They only use a minimum of energy in order to achieve maximum effect.
We aim to provide our customers with the most technically effective and energy-efficient solution for
the best price. This ensures the best possible return on investment, as well as peace of mind about
having made the best decision.

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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.
C105E units are specifically configured to minimize the overall energy consumption of the
dehumidification process, whereas C105D units are configured to make sure the air flow is as dry as
possible.
Dehumidifiers in the Cotes C105 range are designed for high serviceability and easy cleaning, with
add-on configuration options that include cooling/heating coils and/or a heat recovery module.
Design priorities
The Cotes C105 range features an eye-catching modern industrial design appearance, along with
exceptional reliability.
It is designed to ensure the unhindered passage of air through the unit, which reduces
•energy consumption
•pressure losses
•noise levels
All the components, ancillary equipment and features are optimised for better performance,
exceptional service life and ease of maintenance.
Capacities
The Cotes C105 range currently features models with air volumes of between 4000 m3/hour and
8800 m3/hour.
At process air inlet conditions of 20°C and 60% relative humidity (%RH), the capacities (the amount
of water which can be removed from the air) of these units are between 25 kg/hour and 51 kg/hour.

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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.
Configuration-A/BASIC PLR
The Configuration-A configuration provides:
•High dehumidification capacity
•High energy efficiency
•Stainless steel cabinet
•Easy installation
•Low-noise running
•Low maintenance costs, reducing the overall operating cost
•Easy cleaning
•Hour counter, to keep track of how long the unit has been in operation
•Attachment of external humidity sensor (external humidify control and sensors are not
included as standard, but are available for purchase from Cotes)
•Over-heating alarm
•Remote start/stop option
•External fault signal and operation signal
•Manually adjustable process and regeneration air fans, making installation easier
Configuration-B
In addition to the Configuration-A features, the Configuration-B provides:
•Attachment of one external humidity sensor
•5.7-inch touch display
•Service indication, to keep track of any need for maintenance
•Hour counter, to keep track of how long the unit and components has been in operation
•Mechanical service alarm for rotor and filters
•Control of regeneration air fan from the PLC menu, making installation easier
•Capacity control / modulating heat control
•Measuring and controlling dew point temperature
•Data logging for keeping track of conditions in the space where the unit is installed
•Timer program
•Network connectivity (optional)
•Monitoring and control via smartphone app (optional)
•Monitoring and control by Cotes service centre (optional)

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Configuration-C
In addition to the Configuration-B features, the Configuration-C provides:
•Automatic adjustment of process and regeneration air fans based on the selected program
•Monitoring and control of air flows [m3/hour]
•Energy-saving program, for situations where energy consumption is the prime consideration
•Low-noise program, for situations where silence is the prime consideration
•CUSTOM program, for situation where dehumidifier parameters needs to be controlled
Configuration-D
In addition to the Configuration-C features, the Configuration-D provides:
•Accurate control of humidity level, whether % relative humidity or specific humidity [g/kg]
•Continuous measurement of capacity
•Detailed energy-saving program, for situations where energy consumption is the prime
consideration
Configuration combinations with optional modules
The table below shows the possible combinations of optional modules with C105, depending on
configuration.
The “Alternative Heating” modules are built into the C105 dehumidifier and thus cannot be retrofitted
or changed after purchase.
The Pre-module, Post-module and HR-modules are all external modules and can be purchased
together with the 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.
Module
Type
BASIC
PLC B
PLC C
PLC D
Alternative Heating
Steam
X
X
Alternative Heating
EW (Electric + Water)
X
X
PRE –module
Cooling
X
X
X
PRE –module
Heating
X
X
X
PRE –module
Cooling/Heating
X
X
X
POST - module
Cooling
X
X
X
POST –module
Heating
X
X
X
POST –module
Cooling/Heating
X
X
X
HR –Module
HR module (Only HR)
X
X
X
HR –Module
HR module w. Pre-cooling
X
X
X
HR –Module
HR module w. Pre-heating
X
X
X
HR –Module
HR module w. Pre-
cooling/heating
X
X
X