Installation, Operation & Maintenance Instructions Minimum Free Space Ovens MFS/1 and MFS/4 This manual is for the guidance of operators of the above Carbolite products and should be read before the oven is connected to the electricity supply. ONTENTS Section page Symbols &...
& W YMBOLS ARNINGS Switches and Lights Supply Light: when the furnace is connected to the electrical supply the light in the adjacent switch glows Heat Light: the adjacent light glows or flashes to indicate that power is being supplied to the elements Warning Symbols DANGER of electrical shock–...
NSTALLATION Unpacking & Handling When unpacking or handling the oven always lift it by its case. Do not apply lifting force to a door or any other protruding part. Remove any packing material from the oven chamber(s) before use. Siting & Setting Up Place the oven in a well ventilated room, away from other sources of heat, and on a surface which is resistant to accidental spillage of hot materials.
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The second passes from the chamber through the valve labelled "OFF/TEST" to the exhaust port. This is a more direct route and takes the majority of the flow when the valve is in the "off" position, avoiding an accumulation of water vapour in the flowmeter. When the valve is in the "test"...
PERATION The instructions for operating the temperature controller are given in a separate manual. Operating Cycle The oven is fitted with a combined Supply light and Instrument switch. The light is on whenever the oven is connected to the supply. The switch cuts off power to the control circuit. Switch on the electrical supply.
AINTENANCE General Maintenance No routine maintenance is required other than the occasional replacement of consumable items. The oven 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. Calibration After prolonged use the controller and/or thermocouple could require recalibration.
& R EPAIRS EPLACEMENTS Safety Warning – Disconnection from Supply Always ensure that the oven is disconnected from the supply before repair work is carried out. Safety Warning - Refractory Fibrous Insulation This oven contains refractory fibres in its thermal insulation. These materials may be in the form of fibre blanket or felt, vacuum formed board or shapes, mineral wool slab or loose fill fibre.
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Thermocouple Replacement (MFS/1) Disconnect the oven from the supply, and remove the oven back panel. Make a note of the thermocouple connections. Compensating cable colour codings are: negative - white; positive - green Disconnect the thermocouple from its terminal block. Remove the gland nut from the rear of the chamber;...
Fuse Replacement Fuses are marked on the circuit diagram (section 7.0) with type codes, e.g. F1, F2. A list of the correct fuses is given in section 8.1. Remove the oven back panel (MFS/1) or side panel (MFS/4). If any fuse has failed, it is advisable for an electrician to check the internal circuits. Replace any failed fuses with items of the correct type.
IRCUIT IAGRAMS MFS/1 Filter Supply light Instrument Switch temperature controller thermocouple MFS/4 Filter Reset button Hydraulic Supply light thermostat Hydraulic Instrument Switch t/stat o/temp if fitted Warning light Fan motor temperature controller Temperature Sensor Chamber Thermocouples temperature indicator MF14...
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& P USES OWER ETTINGS Fuses F1-F2: Refer to the circuit diagrams. Supply fuses: 32mm x 6mm type F1(quick blow). Instrument circuit fuses: 20mm x 5mm glass, 2 Amps type F1; omitted in MFS/1. model volts phases supply fuse rating MFS/1 220-240V MFS/4...
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