VERDER CARBOLITE GERO CDHT 450 Installation, Operation And Maintenance Instructions
200c coal drying oven 450 litres no controller
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Summary of Contents for VERDER CARBOLITE GERO CDHT 450
- Page 1 Installation, Operation and Maintenance Instructions 200°C Coal Drying Oven - CDHT Model: 450 Litres No Controller CDHT 450 + No Controller MEN-CDHT450-005_NOCTRL (18-10-2021)
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Page 2: Table Of Contents
Contents This manual is for guidance on the use of the Carbolite Gero product specified on the front cover. This manual should be read thoroughly before unpacking and using the furnace or oven. The model details and serial number are shown on the back of this manual. - Page 3 Fuses Power Settings 8.0 Fault Analysis Oven Does Not Heat Up Oven Overheats 9.0 Wiring Diagrams 10.0 Specifications 10.1 Environment...
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Page 4: Symbols And Warnings
1.0 Symbols and Warnings Switches and Lights Instrument switch: when the instrument switch is operated the temperature control circuit is energised. General Warnings DANGER – Electric shock. Read any warning printed next to this symbol. WARNING: Risk of fatal injury. DANGER –... -
Page 5: Installation
2.0 Installation Unpacking and Handling When unpacking or moving the product, always lift by its base; do not use the door or any other projecting cover or component to support the equipment when moving it. Use a fork lift or pallet truck to move the product; position the product on a level surface and use an adequate number of personnel to safely move the product into position. -
Page 6: Electrical Connections
Depending on the application of the product, it may be appropriate to position it under an extraction hood. Ensure the extraction hood is switched on during use. Ensure that the product is placed in such a way that it can be quickly switched off or disconnected from the electrical supply. - Page 7 Product without supply cable: a permanent connection to a fused and isolated supply should be made to the internal terminals after temporary removal of the product access panel. The access panel is located at the top of the 'A' models and the right hand side of the 'B' models.
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Page 8: Temperature Controller
3.0 Temperature Controller If this product is fitted with a temperature controller, instructions are provided separately. -
Page 9: Operation
4.0 Operation Operating Cycle The product is fitted with an instrument switch. The switch cuts off power to the controllers and elements. The circulation fan will operate when the instrument switch is on. An optional door switch may be fitted. If so, ensure that the door is closed to operate the fans and heating elements. -
Page 10: Coal Drying Application
Coal Drying Application The CDHT is designed to operate at typically 150°C - 200°C to dry and test coal samples in accordance with international standards. The oven has air inlet and outlet vents designed to ensure a constant flow of fresh air to dry the samples and carry moisture away. -
Page 11: Maintenance
5.0 Maintenance General Maintenance Preventive rather than reactive maintenance is recommended. The type and frequency depends on the product use; the following are recommended. Maintenance Schedule CUSTOMER QUALIFIED PERSONNEL DANGER! ELECTRIC SHOCK. Risk of fatal injury. Only electrically qualified personnel should attempt these maintenance procedures. Frequency Maintenance Method... - Page 12 Performance Check whether the cooling fans are Cooling Fans (if fitted) working Circulating Fan Visual check to see if it is running (if fitted) Circulating Fan Check bearings and replace if neces- (if fitted) sary Element Circuit Electrical measurement Measure the current drawn on each Power Consumption phase / circuit Shelves...
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Page 13: Cleaning
5.2.1 Cleaning The product's outer surface may be cleaned with a damp cloth. Do not allow water to enter the interior of the case or chamber. Do not clean with organic solvents. Under no circumstances should any objects be placed on top of the product. - Page 14 In some cases the supply voltage may be outside the range 220-240 V or the 3-phase equivalent, the power limit parameter may be set to a value other than 100%. Do not increase the value to 100%, see section 7.0 for details of power limit settings.
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Page 15: Repairs And Replacements
6.0 Repairs and Replacements Safety Warning - Disconnection from Power Supply Immediately switch the product off in the event of unforeseen circumstances (e.g. large amount of smoke). Allow the product to return to room temperature before inspection. Always ensure that the product is disconnected from the electrical supply before repair work is carried out. -
Page 16: Temperature Controller Replacement
Remove the screws holding the panel. Do not disconnect any wiring without first making a careful note of all the connections. For the internal element cover. Open the door. Remove any screws holding the panel and any clips holding thermocouples in position. Remove the cover. Temperature Controller Replacement Refer to the controller instructions for more information on how to replace the temperature controller. -
Page 17: Element Replacement
Element Replacement Remove the cover plate over the element tails on top of the oven. Open the door and remove the shelves and the element cover. The elements will be directly in front of you. Release the gland nut on the compression fitting holding the element, and remove the element. -
Page 18: Fuses And Power Settings
7.0 Fuses and Power Settings Fuses F1 - F2: Refer to the circuit diagrams. Fitted if supply cable fitted. Internal 38 mm x 10 mm type F fitted on Supply Fitted on board to some types EMC filter circuit board(s) Fuses of EMC filter. -
Page 19: Fault Analysis
8.0 Fault Analysis Oven Does Not Heat Up temperature No power from Check the fuses in the supply controller is supply line The controller shows a very high temperature The temperature sensor has temperature or a controller is broken or has a wiring fault code such as EEE or --- or S.br The SSR could be failing to... -
Page 20: Wiring Diagrams
9.0 Wiring Diagrams For wiring diagrams, please contact Carbolite Gero Service. Please quote the serial number and model. -
Page 21: Specifications
10.0 Specifications Carbolite Gero reserves the right to change the specification without notice. Approx Chamber Size Max Temp Max Power Net Weight Model Capacity (°C) (kW) (kg) CD Range Ovens for Coal Drying CDHT 1220 /450 10.1 Environment The models listed in this manual contain electrical parts and should be stored and used in indoor conditions as follows: Temperature: 5 °C - 40 °C... - Page 23 Notes Service Record Engineer Name Date Record of Work...
- Page 24 The products covered in this manual are only a small part of the wide range of ovens, chamber furnaces and tube furnaces manufactured by Carbolite Gero for laboratory and industrial use. For further details of our standard or custom built products please contact us at the address below, or ask your nearest stockist.