Installation, Operation & Maintenance Instructions 1100°C Rotary Reactors HTR 11/75 & HTR 11/150 This manual is for the guidance of operators of the above Carbolite products and should be read before the furnace is connected to the electricity supply. CONTENTS Section 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.
HTR 1.0 SYMBOLS & WARNINGS 1.1 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 1.2 Warning Symbols DANGER of electrical shock– read any warning printed by this symbol. DANGER – hot surface. Read any warning printed by this symbol. WARNING: all surfaces of a furnace may be hot.
HTR 2.0 INSTALLATION 2.1 Unpacking & Handling When unpacking or moving the furnace lift it by both ends of its base. Never lift it by any protruding parts or by the lid. Preferably, use two people to carry the furnace. Remove any packing material from around or inside the furnace before use. NOTE: This product contains Refractory Ceramic Fibre (better described as Alumino Silicate Wool) for precautions and advice in handling this material see the ‘Repairs and Replacements’ section. 2.
HTR 2.5 Installing the Vessel Silica vessel: see section 3.5. Handle the vessel with care. The drive coupling assembly is fitted to the vessel as indicated in fig. 1, using the special spanner provided. Slide the components into place, support part 2 firmly with the hand, and tighten part 1 with the spanner. Do not overtighten. The end of the vessel with this assembly fitted becomes the left-hand end. Lightly lubricate the drive coupling assembly and the furnace drive wheels, using 300°C grease.
HTR 3.0 OPERATION The instructions for operating the temperature controller are given in a separate manual. If the furnace is fitted with a time switch, see also the supplementary manual MS03. If cascade control is fitted, see the supplementary manual MS07. 3.1 Operating Cycle The furnace is fitted with an Instrument switch. The switch cuts off power to the controller(s), to the heating elements (via a contactor), and to the vessel drive motor. Connect the furnace to the electrical supply.
HTR 3.4 Operator Safety The ceramic materials used in furnace manufacture become electrically conductive to some extent at elevated temperatures. Do not insert conductive tools or items in the chamber without isolating the elements. If a metal vessel is used, it should be guarded against being touched when the furnace is on. The elements are isolated when lid is open or the instrument switch is off. For full safety, disconnect the furnace from the electrical supply. Avoid burns.
HTR 4.0 MAINTENANCE 4.1 General Maintenance No routine maintenance is required. The outer surfaces may be cleaned with a damp cloth. Do not allow water to enter the interior of the case, tube or control box. Do not clean with organic solvents. Silica vessels should be kept clean - see section 3.5. 4.2 Calibration After prolonged use the controller and/or thermocouple could require recalibration.
HTR 5.0 REPAIRS & REPLACEMENTS 5.1 Safety Warning – Disconnection from Supply Always ensure that the furnace is disconnected from the supply before repair work is carried out. 5.2 Safety Warning - Refractory Fibrous Insulation Insulation made from High Temperature Insulation Wool Refractory Ceramic Fibre, (better described as Alumino Silicate Wool) (ASW) This product contains alumino silicate wool products in its thermal insulation.
HTR 5.5 Thermocouple Replacement Disconnect the furnace from the supply, and remove the back panel. The thermocouple and its sheath are on the exhaust (right-hand) side. Make a note of the thermocouple connections. The negative leg of the thermocouple is marked blue. Compensating cable colour codings are: negative positive (type K) white green Disconnect the thermocouple from its terminal block. Withdraw the thermocouple from its sheath and remove any broken bits of thermocouple.
HTR 6.0 FAULT ANALYSIS A. Furnace Does Not Heat Up 1. The HEAT light The heating element has failed is ON 2. The HEAT light is OFF Check also that the SSR is working correctly The controller shows a very high temperature or a code such as S.
HTR 7.0 CIRCUIT DIAGRAMS 7.1 N L PE Rotary Reactor: 208V-240V F1 Filter (if fitted) contactor or relay F2 Instrument Switch heat on door switch motor controller motor e l e m e n t (s) coil overtemperature if fitted overtemp. controller thermocouple SSR temperature controller thermocouple MF30 – 3.
HTR 7.2 Rotary Reactor: 110-120V N L PE F1 Filter (if fitted) contactor or relay F2 Instrument Switch heat on 115V motor controller motor 240V overtemperature if fitted door switch transformer e l e m e n t (s) coil overtemp. controller thermocouple SSR temperature controller thermocouple 12 MF30 – 3.
HTR MF30 – 3.
HTR 8.0 FUSES & POWER SETTINGS 8.1 Fuses F1-F3: Refer to the circuit diagrams. F1 F2 F3 Internal supply fuses Auxiliary circuit fuses Fitted if supply cable fitted. Fitted on board to some types of EMC filter. Heat Light fuses Fitted on board to some types of EMC filter. May be omitted up to 25Amp/phase supply rating. May be omitted up to 25 Amp/phase supply rating. Customer fuses Required if no supply cable fitted. Recommended if cable fitted.
HTR 8.2 Power Settings The following values of the OP.Hi parameter apply. Do not increase the setting beyond the value in the table: the wiring and the elements are designed on the basis of the declared settings. Model Volts: HTR 11/75 HTR 11/150 (before year 2001) HTR 11/150 (year 2001 on) MF30 – 3.
9.0 SPECIFICATIONS Carbolite reserves the right to change specifications without notice. 9.1 Models Covered by this Manual MODEL Max. Temp. Max. Power Vessel Capacity (°C) (kW) (gm) High temperature Rotary Reactor Heated by resistance wire embedded in ceramic fibre HTR 11/75 1100°C 1.5 120 HTR 11/150 1100°C 2.6 950 9.2 Net Weight (approx.
