VERDER CARBOLITE GERO RHF 14/35 Installation, Operation And Maintenance Instructions
1400 c rapid heating furnace 35 litres no controller
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Summary of Contents for VERDER CARBOLITE GERO RHF 14/35
- Page 1 Installation, Operation and Maintenance Instructions 1400 °C Rapid Heating Furnace - RHF Model: 35 Litres No Controller RHF 14/35 + No Controller MEN-RHF1435-005_NOCTRL (29-10-2021)
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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 Thermocouple Replacement Element Replacement Fuse Replacement Door Plug Replacement Air Inlet Adjustment 7.0 Fault Analysis Furnace Does Not Heat Up Product Overheats 8.0 Wiring Diagrams WA-11-30 WA-11-31 WA-22-30 WA-22-31 9.0 Wiring Diagrams WA-11-30 WA-11-31 10.0 Fuses and Power Settings 10.1 Fuses 10.2 Power Limit...
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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. Heat light: the adjacent light glows or flashes to indicate that power is being supplied to the elements. General Warnings DANGER –... -
Page 5: Prerequisites To Use
1.3 Prerequisites to Use Prior to the commissioning and use of this product, all personnel involved in its installation, operation and maintenance must be deemed competent and have: Read and understood the information contained within this manual Received the relevant training with regard to safety and operation of the product Been provided with the appropriate PPE (Personal Protective Equipment) required for the safe operation of this product Note: The customer is responsible for ensuring that all of the above conditions are... -
Page 6: Installation
2.0 Installation Unpacking and Handling When unpacking and handling the product, always lift it by its base. Do not use the door or any other projecting cover or component to support the equipment when moving it. Use two or more people to carry the product where possible. Carefully remove any packing material from inside and around the product before use. -
Page 7: Chimney
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 8: Hearth
Duct (75mm-150mm diameter) Ambient air is drawn into duct Chimney 25mm vertical gap between chimney and duct Hearth The chamber floor (hearth) is supplied with a ceramic tile. This may already be in position in the chamber. If it is packed separately, unwrap it and place it carefully on the chamber floor. - 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: Temperature Controller
3.0 Temperature Controller If this product is fitted with a temperature controller, instructions are provided separately. -
Page 11: Operation
4.0 Operation Operating Cycle This product is fitted with an instrument switch which cuts off power to the control circuit. Connect the product to the electrical supply. Turn on the instrument switch to activate the temperature controllers. The controllers illuminate and go through a short test cycle. As the product heats up, the heat light glows steadily at first and then flashes as the product approaches the desired temperature. -
Page 12: Use Of Probes And Metal Sheathed Thermocouples
Use of Probes and Metal Sheathed Thermocouples Any metal object used to probe into the product chamber while the product is connected to the electrical supply must be earthed. This applies in particular to metal sheathed thermocouples, where the sheaths must be earthed. The refractory material of the chamber lining becomes partly conductive at high temperatures and the electric potential inside the chamber can be at any value between zero and the supply voltage. -
Page 13: Power Adjustment
Power Adjustment The product control system incorporates electronic power limiting. Depending on the model and the destination country the power limit maybe set to 100% or a lower figure. Where appropriate the power limit parameter OP.Hi is accessible to the operator, but it should not generally be altered. -
Page 14: 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 15 Check that all functions are working nor- Operational Check mally Thorough inspection and report incor- Operational Check porating a test of all functions Performance Element Circuit Electrical measurement Measure the current drawn on each Power Consumption phase / circuit Hearth Visual check for fit and damage Check whether the cooling fans are work- Cooling Fans (if fitted)
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Page 16: Cleaning
5.2.1 Cleaning Soot deposits may form inside the furnace, depending on the process. At appropriate intervals remove these by heating as indicated in the General Operation Notes. 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. -
Page 17: After-Sales Service
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. Carbolite Gero can supply these items. Depending on the controller fitted, the controller instructions may contain calibration instructions. -
Page 18: 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 19: Solid-State Relay Replacement
Solid-state Relay Replacement Disconnect the product from the power supply and remove the appropriate cover as given above. 1. Make a note of the wire connections to the solid state relay, then disconnect them. 2. Remove the solid state relay from the base panel or aluminium plate. 3. -
Page 20: Element Replacement
Element Replacement See section 6.2 - wearing a face mask is required. The element is supplied in the form of a complete inner chamber. Disconnect the furnace from the electrical supply and remove the furnace case back panel. Pull the chimney out of the top of the furnace. Make a note of the wiring connections. -
Page 21: Fuse Replacement
Element ELF 11/6 & 11/14 ELF 11/23 Live Neutral Fuse Replacement Fuses are marked on the wiring diagram with type codes, e.g. F1, F2. For more information on fuses refer to section 10.0. Depending on model and voltage, the different fuse types may or may not be fitted. If any fuse has failed, it is advisable for an electrician to check the internal circuits. -
Page 22: Air Inlet Adjustment
The “door plug” is also known as the “door insulation piece”. Lower the furnace door to the fully open position. Loosen the four M6 Screws, two on either side of the door plug carrier. Remove the door plug and carrier. Remove the air inlet blanking plate screws (see section 6.9). -
Page 23: Fault Analysis
7.0 Fault Analysis Furnace Does Not Heat Up The HEAT The heating element Check also that the SSR is light is ON has failed working correctly The HEAT The controller shows a The thermocouple has broken or light is very high temperature has a wiring fault or code such as S.br The controller shows a... -
Page 24: Product Overheats
Product Overheats Product only heats The controller up when the shows a very high The controller is faulty instrument switch is temperature The thermocouple may be The controller faulty or may have been shows a low removed out of the heating temperature chamber The thermocouple may be... -
Page 25: Wiring Diagrams
8.0 Wiring Diagrams WA-11-30 Connections below show single phase with indirect safety switch(es). F1, F2, F3 Fuses Filter R1/1, R1/2 Relay Contactor Relay Cables Temperature Controller Blue Control Thermocouple Solid State Relay GR/Y Green + Yellow Safety Switch Grey Heat Lamp Pink Element(s) Instrument Switch(es) - Page 26 WA-11-31 Connections below show single phase with safety switches and over-temperature control. F1, F2, F3 Fuses Filter R1/1, R1/2 Relay Contactor Relay Temperature Controller Cables Over-Temperature Controller Blue Over-Temperature Thermocouple Control Thermocouple GR/Y Green + Yellow Solid State Relay Grey Safety Switch Pink Heat Lamp...
- Page 27 WA-22-30 Connections below show 2-phase +N with indirect safety switches. F1, F2, F3 Fuses Filter R1/1, R1/2 Relay Contactor Relay Cables Temperature Controller Blue Control Thermocouple Solid State Relay GR/Y Green + Yellow Safety Switch Grey Heat Lamp Pink Element(s) Instrument Switch(es) Neutral L1/L2...
- Page 28 WA-22-31 Connections below show 2-phase +N with indirect safety switches and over- temperature control. F1, F2, F3 Fuses Filter R1/1, R1/2 Relay Contactor Relay Temperature Controller Cables Control Thermocouple Blue Over-Temperature Over-Temperature Thermocouple GR/Y Green + Yellow Safety Switch Grey Heat Lamp Pink Element(s)
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Page 29: Wiring Diagrams
9.0 Wiring Diagrams WA-11-30 Connections below show single phase with indirect safety switch(es). F1, F2, F3 Fuses Filter R1/1, R1/2 Relay Contactor Relay Cables Temperature Controller Blue Control Thermocouple Solid State Relay GR/Y Green + Yellow Safety Switch Grey Heat Lamp Pink Element(s) Instrument Switch(es) - Page 30 WA-11-31 Connections below show single phase with safety switches and over-temperature control. F1, F2, F3 Fuses Filter R1/1, R1/2 Relay Contactor Relay Temperature Controller Cables Over-Temperature Controller Blue Over-Temperature Thermocouple Control Thermocouple GR/Y Green + Yellow Solid State Relay Grey Safety Switch Pink Heat Lamp...
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Page 31: Fuses And Power Settings
10.0 Fuses and Power Settings 10.1 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 32 Power (%): 1-phase Power (%): 2-phase +N Please refer to the rating label for product specific information.
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Page 33: Specifications
11.0 Specifications Carbolite Gero reserves the right to change the specification without notice. Chamber Size (mm) Approx Weight Model Temp Power Capacity (kg) (°C) (kW) Chamber furnaces heated by coiled resistance wire embedded in light weight ceramic fibre forming the furnace chamber. ELF 11/06B 1100 ELF 11/14B... - Page 35 Notes Service Record Engineer Name Date Record of Work...
- Page 36 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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