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COTES C30

OPERATING AND SERVICE HANDBOOK

page 33/48

Replacing fans

The following is standard procedure for replacing the process air fan;

•

Remove top cover

•

Disconnect cables for process air fan

•

Remove the screws on the fan bracket

•

Remove the screws on the fan

•

Remove the fan bracket

•

Remove the fan

•

Replace the process air fan

The following is standard procedure for replacing the regeneration air fan:

•

Disconnect cables for regeneration air fan

•

Dismount screw clamp fastened to the regeneration air fan box

•

Remove the regeneration air fan box

•

Insert a replacement regeneration air fan box, or remove the screws on the regeneration air
fan box and replace the regeneration air fan

Process air fan

Regeneration air fan

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Содержание C30C

Страница 1: ...COTES C30 OPERATING AND SERVICE HANDBOOK page 1 48 COTES ALL ROUND C30 How to install set up operate and service your Cotes dehumidifier Cotes dehumidifier C30E C30C Manual number 140720 Revision K 3 ...

Страница 2: ...COTES C30 OPERATING AND SERVICE HANDBOOK page 2 48 COTES COM ...

Страница 3: ...MATION FOR C30C DEHUMIDIFER COLD STORE MODEL 25 HOW TO COMMISSION THIS DEHUMIDIFIER 27 SECTION 5 OPERATION 29 HOW TO OPERATE THE C30 DEHUMIDIFIER 29 SECTION 6 SERVICE AND REPAIR 30 HOW TO SERVICE AND REPAIR THIS DEHUMIDIFIER 30 SECTION 7 CONDENSATION OR HEAT RECOVERY UNIT 37 RECOMMENDED COMBINATIONS OF DEHUMIDIFIERS AND MODULES 37 SPECIFICATIONS ASSEMBLIES AND COMPONENTS 38 HOW TO INSTALL A CONDEN...

Страница 4: ...COTES C30 OPERATING AND SERVICE HANDBOOK page 4 48 ...

Страница 5: ...l 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 hel...

Страница 6: ...ticular 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 ...

Страница 7: ...ways 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 e...

Страница 8: ...ion module and additional filters if needed Design priorities The Cotes C30 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...

Страница 9: ...ent of external humidity sensor External humidify control and sensors are not included as standard but are available for purchase from Cotes Remote start stop option Configuration SENSOR In addition to the Configuration BASIC features the Configuration SENSOR provides Current sensor that provides you valuable information about the status of the regeneration filter heating element and the regenerat...

Страница 10: ...s standard models E For the process and regeneration air inlet the following operating conditions must be respected Relative humidity 0 100 Temperature 0 40 C Pressure Ambient 100 Pa It is only possible to deviate from these ranges if such deviations were specifically mentioned when the order was placed and special considerations have been incorporated into the unit in order to deal with this Oper...

Страница 11: ... respected Relative humidity 0 90 Temperature 20 C to 50 C It is only possible to deviate from these ranges if such deviations were specifically mentioned when the order was placed and special considerations have been incorporated into the unit in order to deal with this NOTE Storage conditions for the dehumidifier must be respected ...

Страница 12: ...bed and lodge in the pores on the surface of the silica gel This means the air leaves the rotor containing less moisture humidity than when it entered E And because the adsorption process releases energy to the air the temperature increases during the process The process air is controlled by a process air fan D The regeneration process F to J The second air flow the regeneration air J is filtered ...

Страница 13: ...t HR module Cotes adsorption dehumidifiers can be fitted with a heat exchanger to make sure that part of the thermal energy from the regeneration air leaving the unit is extracted and reused for preheating the incoming regeneration air The heat exchanger is placed in an external box equipped with inlets and outlets for the incoming and outgoing regeneration air The heat recovery unit can save as m...

Страница 14: ...dditional insulation and noise suppression equipment Configurations individually customised to each project installation Key components are standardised units easily available throughout the world Less downtime Savings on maintenance and service work Most effective rotor currently available anywhere in the world Most humidity removed from the flow of air at lowest cost Highly durable rotor bushes ...

Страница 15: ...ehumidifier The serial number identification code for your particular model is located in the top of the dehumidifier see drawing below V HZ SUPPLY KG ITEM NO TYPE NO KW HEAT KW TOTAL Cotes A S Ndr Ringgade 70C DK 4000 Slagelse 30242E 20 C30E 1 2 230V 50Hz PLUS YY XXXXXX 53 0 230 50 1PH N PE 1 6 1 8 Serial number Example 18 12345 12345 Serial number 18 Year of production ...

Страница 16: ... dry air at nominal air flow Pa 200 200 200 200 External pressure regeneration air at nominal air flow Pa 150 180 140 150 Capacity at 20ºC 60 relative humidity kg hour 0 9 1 2 1 9 Capacity at 18ºC 25ºC 95 relative humidity kg hour 0 3 0 15 Electric heater maximum kW 1 2 1 6 2 7 1 2 Fuse min A 10 10 5 1 0 Fuse max A 10 10 16 10 Maximum connected load kW 1 4 1 8 2 9 1 4 Voltage V 230 230 400 230 Fre...

Страница 17: ...ments Type C30E C30C Model 0 9 1 2 1 9 0 3 L x W x H cabinet mm 398 x 554 x 771 L x W x H total mm 437 x 631 x 789 Weight kg 52 53 53 53 Regeneration air outlet mm Ø100 Regeneration air inlet mm Ø100 Process air inlet mm 200x180 ø200 Process air outlet mm 200x180 ø200 ...

Страница 18: ...ts 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 Your Cotes C30 dehumidifier has been configured to meet the particular requirements of your installation Dimensions C30E C30C dehumidifier ...

Страница 19: ...COTES C30 OPERATING AND SERVICE HANDBOOK page 19 48 Spare parts C30E C30C dehumidifier ...

Страница 20: ... Gear 110414 110414 4 Gear motor 110404 110404 5 Drive belt 132109 132109 6 Process air filter 130350 130350 7 Regeneration air filter 130268 130350 8 Rotor 124055 124058 124058 9 Heater 111468 614188 111468 Configuration PLUS 10 Pressure switch for process air filter 126843 11 Rotor guard 823188 Mounted externally before duct heating element See the Additional information for C30C dehumidifiers C...

Страница 21: ...ound levels for each particular dehumidifier can be found on page 16 Measuring sound levels Sound levels for Cotes dehumidifiers are measured in accordance with the provisions of the ISO11201 standard While the sound level is being measured the dehumidifier is placed on the floor Ducts for regeneration air and for incoming air outgoing air are installed and led out of the measuring room The sound ...

Страница 22: ...fier around and place it in position Where to mount this dehumidifier Cotes adsorption dehumidifiers are designed for installation indoors The back of the dehumidifier should be placed against an outer wall to make it easier to install the regeneration air ducts The three other sides of the unit should have at least 1 metre of unobstructed access for easy service and maintenance Where not to mount...

Страница 23: ...ace available for ducting A 200mm diameter duct is normally recommended for the process air flow When installed the process air flow should be adjusted by means of a damper NOTE Electrical work should only be carried out by an authorised electrician NOTE Make sure power is switched off before installing and servicing NOTE The electrical board may include circuits that can retain a charge even if t...

Страница 24: ...ds is not possible drill a ø6mm hole in the lowest part of the duct so that any accumulated water can drain away A damper for adjusting the regeneration air flow must be installed on the outlet in order to adjust the regeneration air flow If not the regeneration air flow will in most cases be too high making it impossible to reach the desired temperature for the regeneration air and thus making th...

Страница 25: ...t Any work in the electrical box should only be carried out by authorised electricians Any duct connections to and from the dehumidifier should only be carried out by authorised plumbers ADDITIONAL INFORMATION FOR C30C DEHUMIDIFER COLD STORE MODEL Where to mount this dehumidifier Cotes C30C adsorption dehumidifiers are specially designed for installation inside cold storage facilities Where not to...

Страница 26: ...ation air flow must be installed on the outlet in order to adjust the regeneration air flow If not the regeneration air flow will in most cases be too high making it impossible to reach the desired temperature for the regeneration air and thus making the unit less efficient Use a standardised tool for measuring the air flow according to specifications from page 16 NOTE A 30 minute timer is activat...

Страница 27: ... that any condensed water flows away If the regeneration air outlet does not drain away from the dehumidifier check whether there is a 6mm diameter hole drilled in the lowest part of the duct so that any accumulated water can drain away c Suggested damper positions air flow settings at commissioning Dampers settings should be set in the following positions o Damper at process air outlet Fully open...

Страница 28: ...g the current sensor relay The current sensor relay is monitoring the current used by the PTC heating element If the regeneration flow is reduced or stopped by a damaged fan the current uptake by the heater drops The reduced flow is often caused by a blocked filter but it can also be caused by a damaged heater or regeneration fan The sensor is adjusted from factory but it is recommended to do an a...

Страница 29: ...eter first Turn the rotary switch back to neutral position to stop the dehumidifier HOUR COUNTER The mechanical hour counter is located on the front of the machine ALARM The red signal lamp in the front of the panel lights up if an alarm occurs and the external alarm relay is closed The dehumidifier cannot provide information about what type of alarm has been triggered An alarm can be triggered by...

Страница 30: ...nt Specified for 8 700 hours under normal conditions o Air filter for electrical box Depends on the working environment Specified for 8 700 hours under normal conditions o Process air fan 30 000 hours o Regeneration air fan 25 000 hours o Motor and gear for rotor 25 000 hours o Heaters 40 000 hours o Rotor 50 000 hours o Electrical board 50 000 hours External humidity sensor should be calibrated o...

Страница 31: ...ns before you open top cover or front door For 400V models the safety switch should also be switched OFF and locked You should never just turn off the power to the dehumidifier while it is running The correct procedure is to switch the rotary switch to neutral position after which the machine runs a cooling cycle before the regeneration air fan stops Turning off the dehumidifier properly prevents ...

Страница 32: ...ake them easy to get to All other electrical components fan motors gear motor heating elements etc are easy to access when the service door for these parts is opened Connecting 230V motors All C30 dehumidifiers are fitted with 230V AC electric motors for the fans This means it doesn t matter how the phase neutral cables are connected Nevertheless the gear motor must be connected correctly and you ...

Страница 33: ...an Remove the fan bracket Remove the fan Replace the process air fan The following is standard procedure for replacing the regeneration air fan Disconnect cables for regeneration air fan Dismount screw clamp fastened to the regeneration air fan box Remove the regeneration air fan box Insert a replacement regeneration air fan box or remove the screws on the regeneration air fan box and replace the ...

Страница 34: ...onnected to the electrical board Remove the screws fastening the electrical board to the cabinet Replace the electrical board Replacing gear motor Remove the drive belt from the pulley and then remove the gear motor after disconnecting all electrical connections You should then fit a replacement gear motor When re starting the unit check that the rotor is moving If not swap the two cables on the m...

Страница 35: ...eneration heater box You can then withdraw the heater from the heater box Replacing rotor and shaft The following is standard procedure for replacing the rotor Open door at the front of the cabinet Remove the drive belt from the pulley Remove the screws for the rotor shaft Remove the screws for the lower divider and spacers in between the dividers Carefully slide out the rotor including rotor shaf...

Страница 36: ...been triggered Turn all fuse breakers on The air is not as dry as expected The rotor is not turning The regeneration air temperature is lower than expected The regeneration air flow is too low If the drive belt is intact change the gear motor Check that the regeneration air flow is not too high Check that all heating elements are functioning Check that the regeneration air filter is not clogged Th...

Страница 37: ...odule itself This loss of external pressure is because the airflow must be increased and because the heat exchanger in the module itself adds a resistance to the flow of air Note that the energy consumption of a Cotes dehumidifier in BASIC configuration will remain the same with a HR module However the running time will fall due to the increased capacity when using a HR module without modulating h...

Страница 38: ...le 4 Technical data C30LK Type LK Maximum connected load kW 0 05 Voltage V 230 Frequency Hz 50 Electrical connection PH N PE Table 5 Measurements C30LK C30HR Type LK HR L x W x H cabinet mm 398 x 554 x 771 398 x 354 x 771 L x W x H total mm 409 x 555 x 790 398 x 391 x 789 Weight kg 35 21 Regeneration air outlet mm 200x180 ø200 Ø100 Regeneration air inlet mm 200x180 ø200 Ø100 Drain size inch 1 2 1 ...

Страница 39: ...COTES C30 OPERATING AND SERVICE HANDBOOK page 39 48 Dimensions Condensation module Heat recovery module ...

Страница 40: ...ING AND SERVICE HANDBOOK page 40 48 Spare parts Condensation module CONDENSATION UNIT 1 Condensation air filter 130268 2 Condensation fan 801715 Heat recovery module HEAT RECOVERY UNUT 1 Regeneration air filter 130268 ...

Страница 41: ... them in position Where to mount the condensation or heat recovery unit The condensation and heat recovery units are designed for indoor installation mounted directly onto the Cotes adsorption dehumidifier on the right side connecting the units to the regeneration air flow Note that both units cannot be mounted on the dehumidifier at the same time The condensation or heat recovery unit must be ins...

Страница 42: ...n pipe must be of sufficient size and mounted on the outside of the drain pipe see illustration on the next page Minimum internal diameter of the Hose 14mm For the LK HR unit s main drain an air lock must be made with or in connection with the drain hose and must be minimum 30mm below the drain For the LK unit if an air lock is not in place the low relative pressure inside the unit will pull outsi...

Страница 43: ...ed for the condensation unit electrical First make sure that the main switch is OFF The condensation unit has a pre mounted cable connected to the condensation air fan This cable must be directly connected to the terminals 306X1 1 2 PE in the electrical board located in the C30 dehumidifier Water ...

Страница 44: ...ranty 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 All spare parts must have been purchased from Cotes or an authorised Cotes dealer ...

Страница 45: ... A S is not liable for any loss or damages including consequential damages caused by disregard of any advice or warnings in relation to safety in this publication This publication cannot be deemed to contain any express or implied warranties of any kind concerning the construction or the suitability of the products described or the fitness of the products for any particular purpose This publicatio...

Страница 46: ...n liability that the following models of Cotes adsorption dehumidifiers C30 C35 C65 C105 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 between and 125W to 500kW EMC Directive 2014 30 EU RoHS 2011 65 EC Aarhus Denmark 01 12 2020 Thomas Rønnow...

Страница 47: ...e 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 Additional increased filter class If cleaner air is needed it is possible to replace the fitted filter with a different filter featuring other specifications If an additional filter is required please contact a Cotes expert and find out how the u...

Страница 48: ...BOOK page 48 48 WHOM TO CONTACT Help when and where you need it Contact Cotes in Denmark or your local dealer Cotes contact information Cotes A S Mariane Thomsens Gade 2f 11 8000 Aarhus C Denmark 45 5819 6322 info cotes com www cotes com ...

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