Related Manuals for VERDER CARBOLITE GERO HRF 7/22
Summary of Contents for VERDER CARBOLITE GERO HRF 7/22
- Page 1 Installation, Operation and Maintenance Instructions 750°C Recirculating Air Furnace - HRF Model: 22 Litres No Controller HRF 7/22 + No Controller MEN-HRF7022-05_NOCTRL 02-08-2019...
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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 Power Adjustment 7.0 Repairs and Replacements Safety Warning - Disconnection from Power Supply Safety Warning - Refractory Fibre Insulation Temperature Controller Replacement Solid-state Relay Replacement Thermocouple Replacement Element Replacement Fuse Replacement 8.0 Fault Analysis Furnace Does Not Heat Up Product Overheats 9.0 Wiring Diagrams WA-11-00-H WA-11-01-H...
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Page 4: Symbols And Warnings
1.0 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: Installation
2.0 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 6: Chimney
2.0 Installation 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: Electrical Connections
2.0 Installation Duct (75mm-150mm diameter) Ambient air is drawn into duct Chimney D 25mm vertical gap between chimney and duct Electrical Connections Connection by a qualified electrician is recommended. This product requires a single-phase A.C. supply with earth (ground), which may be Live to Neutral non-reversible (polarised), Live to Neutral reversible (non-polarised), or Live to Live. - Page 8 2.0 Installation Electrical Connection Details: Supply Types Supply Terminal Label Cable Colour Reversible or Live- Live - Neutral Live to either power conductor 1-phase L Brown to live (For USA 200-240V, connect L1) to the other power conductor Blue to neutral (For USA 200-240V, connect L2) to earth...
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Page 9: Temperature Controller
3.0 Temperature Controller 3.0 Temperature Controller If this product is fitted with a temperature controller, instructions are provided separately. -
Page 10: 2132 Over-Temperature Controller Description (If Fitted)
4.0 2132 Over-Temperature 4.0 2132 Over-Temperature Controller Description (if fitted) Description Alarm Light Page Scroll D Down Display This over-temperature controller is fitted and supplied ready to use by Carbolite Gero. It is a digital instrument with a latching alarm, requiring no additional panel controls. The controller features easy setting of over-temperature setpoint and reading of current temperature by the over-temperature sensor. -
Page 11: Operation
4.0 2132 Over-Temperature 4.2.2 Operation When switched on, the controller lights up, goes through a short test routine and then displays the measured temperature or the over-temperature setpoint. The page key allows access to parameter lists within the controller. A single press of the page key displays the temperature units, normally set to °C;... -
Page 12: Audible Alarm
4.0 2132 Over-Temperature Audible Alarm If an audible alarm is supplied for use with the over-temperature controller, it is normally configured to sound on over-temperature condition and to stop sounding when the alarm is acknowledged as given in section 4.2. Note: the alarm may sound during controller start-up. -
Page 13: Operation
5.0 Operation 5.0 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. -
Page 14: Atmospheres
5.0 Operation maximum, or heat using a slowly controlled ramp rate. For more information refer to the controller instructions. When heating materials that produce smoke or fumes, the chimney must be correctly fitted and unobstructed. If not, soot will accumulate in the chamber and could possibly cause an electrical breakdown of the heating element. -
Page 15: Maintenance
6.0 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. - Page 16 6.0 Maintenance Metal Liner Visual check for fit and damage With the furnace at ambient open the door and Circulating Fan make sure the fan is working...
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Page 17: Cleaning
6.0 Maintenance 6.2.1 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. - Page 18 6.0 Maintenance 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 10.0 for details of power limit settings.
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Page 19: Repairs And Replacements
7.0 Repairs and Replacements 7.0 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 20: Solid-State Relay Replacement
7.0 Repairs and Replacements 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 21: Fuse Replacement
7.0 Repairs and Replacements Insert the new element through the glands and refit the compression collars. Their centres should be approximately 40 mm from the end of the element. Firmly tighten the gland cap, ensuring the element lies centrally between the chamber liner and the insulation. -
Page 22: Fault Analysis
8.0 Fault Analysis 8.0 Fault Analysis Furnace Does Not Heat Up The HEAT The heating element Check also that the SSR is working light is ON has failed correctly The controller shows a The HEAT The thermocouple has broken or has very high temperature light is OFF a wiring fault... -
Page 23: Product Overheats
8.0 Fault Analysis Product Overheats Product only heats up The controller when the instrument shows a very high The controller is faulty switch is ON temperature The thermocouple may be The controller faulty or may have been shows a low removed out of the heating temperature chamber... -
Page 24: Wiring Diagrams
9.0 Wiring Diagrams 9.0 Wiring Diagrams WA-11-00-H Note: before serial no. 20-301901 - fan connected on live side of instrument switch 20-3-1901 onwards - fan connected on switched side of instrument switch... -
Page 25: Wa-11-01-H
9.0 Wiring Diagrams WA-11-01-H Note: before serial no. 20-301901 - fan connected on live side of instrument switch 20-3-1901 onwards - fan connected on switched side of instrument switch... -
Page 26: Fuses And Power Settings
10.0 Fuses and Power Settings 10.0 Fuses and Power Settings 10.1 Fuses F1 - F2: Refer to the circuit diagrams. GEC Safeclip of the type shown Fitted if supply cable fitted. Internal (glass type F up to 16 A) Supply Fitted on board to some types 38 mm x 10 mm type F fitted on Fuses... -
Page 27: Specifications
11.0 Specifications 11.0 Specifications Carbolite Gero reserves the right to change the specification without notice. Chamber Size Max Power Approx (mm) Model Temp Weight Capacity (l) (kW) (°C) (kg) Recirculating Air Furnace heated by mineral insulated elements. HRF 7/22 11.1 Environment The models listed in this manual contains electrical parts and should be stored and used in indoor conditions as follows:... - Page 29 Notes Service Record Engineer Name Date Record of Work...
- Page 30 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.