Related Manuals for VERDER CARBOLITE GERO HT 6/350
Summary of Contents for VERDER CARBOLITE GERO HT 6/350
- Page 1 Installation, Operation and Maintenance Instructions 600°C High Temperature Oven - HT Model: 350 Litres No Controller HT 6/350 + No Controller MEN-HT06350-005_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 7.0 Maintenance General Maintenance Maintenance Schedule Preventative Maintenance 7.3.1 General Condition Cleaning 7.4.1 Thermal Insulation and Brickwork 7.4.2 General Access 7.4.3 General Ventilation 7.4.4 Door Seal, Hinges and Latches 7.4.5 Air Inlet and Exhaust Vent 7.4.6 Door Safety Switch 7.4.7 Fan Operation 7.4.8 Shelves, Lights and Windows...
- Page 4 Element Replacement 9.0 Fault Analysis Oven Does Not Heat Up Oven Overheats 10.0 Wiring Diagrams 10.1 WV-11-00/01 10.2 WV-33-00/01 10.3 WV-43-00/01 10.4 WS-10-01 - Isolating for 208 V version only 10.5 WS-14-04 11.0 Fuses and Power Settings 11.1 Fuses 11.2 Power Settings 12.0 Specifications 12.1...
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Page 5: 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. Door lock indicator: When this lamp is illuminated, the door is locked and cannot be opened. Solenoid valve (if fitted): see section 5.6 for full details Variable speed fan (if fitted): see section 5.7 for full details Exhaust fan (if fitted): see section 5.8 for full details Stoving and curing (if fitted): see section 5.9 for full details... - Page 6 DANGER – Hot surface. Read any warning printed next to this symbol. WARNING: All surfaces of a product may be hot. DANGER – Read any warning printed next to this symbol. Caution – Double Pole/Neutral Fusing...
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Page 7: 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 8: 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 9 When the mains cable is factory fitted, internal fuses are also fitted. It is essential that the operator ensures that the product is correctly fused. Products with a factory fitted supply cable are designed to be wired directly to an isolator or fitted with a line plug.
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Page 10: Installation
3.0 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 11: 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 12 When the mains cable is factory fitted, internal fuses are also fitted. It is essential that the operator ensures that the product is correctly fused. Products with a factory fitted supply cable are designed to be wired directly to an isolator or fitted with a line plug.
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Page 13: Temperature Controller
4.0 Temperature Controller If this product is fitted with a temperature controller, instructions are provided separately. -
Page 14: Operation
5.0 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 15: Atmospheres
Atmospheres When an optional gas inlet is fitted, there is a label near the inlet saying "INERT GAS ONLY". In practice, inert or oxidising gases may be used, but not combustible or toxic gases. The chamber is not gas tight, the gas usage may be high and the chamber is always likely to contain some air. -
Page 16: Variable Speed Fan (If Fitted)
Variable Speed Fan (if fitted) If fitted, the variable speed control is fitted in the air circulation fan circuit. A panel mounted rotary dial is used to control the speed. Please note that there is a minimum setting at which the fan motor starts up when the product is switched on. -
Page 17: Maintenance
6.0 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 18 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 19: Maintenance Schedule
Maintenance Schedule CUSTOMER QUALIFIED PERSONNEL DANGER! ELECTRIC SHOCK. Risk of fatal injury. Only electrically qualified personnel should attempt these maintenance procedures. Frequency Maintenance Method Procedure Daily Weekly Monthly Annually Annually Safety With the gas supply on but the oven Safety Switch Function at ambient, open the door and make sure the gas ceases to flow Safety Switch Function... - Page 20 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 Visual check for fit and damage...
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Page 21: Cleaning
6.3.1 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 22 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 11.0 for details of power limit settings.
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Page 23: Maintenance
7.0 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 24 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 25: Preventative Maintenance
Preventative Maintenance It is suggested that a photographic record is taken during routine maintenance to help establish a record of the condition of the product and any changes that are occurring. 7.3.1 General Condition With the product switched off and cold visually check general condition looking for signs of deterioration, over-heating and spillage damage. -
Page 26: Door Safety Switch
7.4.6 Door Safety Switch If fitted with the product switched off and cold visually check securely fixed and has not been by-passed. With the product switched on but cold open door and check fans and heating elements do not operate. 7.4.7 Fan Operation Switch on from cold and open door and visually check all fans are running or have run. -
Page 27: Mains Electrical Lead And Plug
7.4.16 Mains Electrical Lead and Plug With product switched off at the mains and cold visually inspect the electrical lead and plug and look for signs of damage or deterioration. Repair or replace if necessary. 7.4.17 Gas Atmosphere Equipment If gas flow meters or solenoid control valves have been fitted starting with the product switched off and cold test the meters are registering and solenoid valves switches on and off the gas flow correctly when operated normally. -
Page 28: Final Inspection And Testing
EMC filters are generally fitted and these may give false results as they may be designed to have a small leak to earth. The insulation on heating elements generally has a small leakage particularly when older. With the oven / furnace isolated and disconnected from the mains: Earth Continuity: Measure from main incoming earth point to any accessible conducting panel, screw head, frame member, controls mounting plate or earth connection point on any... -
Page 29: Calibration
Calibration After prolonged use, the controller and/or thermocouple may require recalibration. This is important for processes that require accurate temperature readings or for those that use the product close to its maximum temperature. A quick check using an independent thermocouple and temperature indicator should be made from time to time to determine whether full calibration is required. -
Page 30: Repairs And Replacements
8.0 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 31: Temperature Controller Replacement
Control panel - HT models. Remove the screws holding the panel. Note that the panel remains connected by wiring. Do not disconnect any wiring without first making a careful note of all the connections. Internal element cover. Open the door, remove any screws holding the panel and any clips holding thermocouples in position and remove the cover. -
Page 32: Element Replacement
Element Replacement Remove the back panel and the internal cover as given above. The element terminals are accessed from the back. Disconnect the wires from the heating element terminals. Remove any starlock washers - these may need to be cut with wire cutters. Remove any clips holding the element inside the chamber and withdraw the ele- ment. -
Page 33: Fault Analysis
9.0 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 34: Wiring Diagrams
10.0 Wiring Diagrams 10.1 WV-11-00/01 Connections below show single phase with indirect safety switches, fan motor (if fitted) and over-temperature control. - Page 35 10.2 WV-33-00/01 Connections below show 3-phase +N with indirect safety switches, fan motor (if fitted) and over-temperature control. 10.3 WV-43-00/01 Connections below show 3-phase Delta with indirect safety switches, fan motor (if fitted) and over-temperature control (if fitted).
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Page 36: Ws-10-01 - Isolating For 208 V Version Only
10.4 WS-10-01 - Isolating for 208 V version only The transformer changes the supply voltage of the control circuit into the desired operating range for the controller and other components. The supply voltage as shown is taken from a single phase supply or from the phase-to- phase voltage of a 3-phase supply. -
Page 37: Ws-14-04
10.5 WS-14-04 The supplementary wiring diagram below shows the connections for a door switch on a fan oven with an existing contactor but no spare contact. The door switch is included in the contactor coil circuit. If there is no spare contact available, an additional relay is required. Circulation Fan Coil Door Switch... -
Page 38: Fuses And Power Settings
11.0 Fuses and Power Settings 11.1 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 39: Power Settings
6/220 3-phase Delta 220-240 20 A 25 A 6/350 3-phase 200-210 23 A 6/350 3-phase 220-240 13 A 6/350 3-phase + N 380-415 25 A (per phase) 6/500 3-phase + N 380-415 7/28 1-phase 208-240 16 A 7/95 1-phase 208-240 32 A (per phase) 50 (per phase) 7/220... -
Page 40: Specifications
12.0 Specifications Carbolite Gero reserves the right to change the specification without notice. Approx Chamber Size (mm) Max Temp Max Power Capacity Model Weight (°C) (kW) (kg) Industrial High Temperature Ovens HT 4/28 HT 4/95 HT 4/220 HT 4/350 HT 5/28 HT 5/95 HT 5/220 HT 5/350... - Page 41 Notes Service Record Engineer Name Date Record of Work...
- Page 42 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.
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