Table of Contents
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Installation, Operation &
Maintenance Instructions
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.
Section
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
Manuals are supplied separately for the temperature controller
Please read the controller manuals before operating the oven.
1.0
Clean Room Ovens
CR models
C
ONTENTS
(and overtemperature controller when fitted).
Page
2
3
4
6
7
10
12
15
16
MF21
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Table of Contents
Related Manuals for Carbolite CR SERIES
Summary of Contents for Carbolite CR SERIES
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Page 1: Table Of Contents
Installation, Operation & Maintenance Instructions Clean Room Ovens CR models 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 & Warnings... -
Page 2: Symbols & Warnings
Clean Room Ovens & W YMBOLS ARNINGS Switches and Lights Supply Light: when the oven is connected to the electrical supply the light in the adjacent switch glows Warning Symbols DANGER of electrical shock– read any warning printed by this symbol. DANGER –... -
Page 3: Installation
Clean Room Ovens 2.0 I NSTALLATION Unpacking & Handling Lift the unit 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 oven where possible. Remove any packing material from the inner chamber before use, and locate the shelves as required. -
Page 4: Operation
Clean Room Ovens 3.0 O PERATION The instructions for operating the temperature controller are given in a separate manual. If the oven is fitted with a time switch, see also the supplementary manual MS03. If cascade control is fitted, see the supplementary manual MS07. If the oven has variable speed fan, air extraction or stoving and curing options, please also see the appropriate section on the next page of this manual. - Page 5 Clean Room Ovens Variable Speed Fan Option When this is ordered, or in any model where it is supplied as standard, a variable speed control is fitted in the fan circuit. Operation of the rotary control is self-explanatory. Please note that there is a minimum setting at which the fan motor starts up when the oven is switched on.
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Page 6: Maintenance
Recommended Spares Kits Carbolite can supply individual spares, or a kit of the items most likely to be required. Ordering a kit in advance can save time in the event of a breakdown. Each kit comprises a fan and motor assembly, a thermocouple, a solid state relay, an instrument switch, an element or set of elements, and a door seal. -
Page 7: Repairs & Replacements
Clean Room Ovens 5.0 R & 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. - Page 8 Clean Room Ovens Temperature Controller Replacement 200 & 201. These controllers are fitted to the back of the control panel, which can be removed as given above. Before handling the controller: wear an anti-static wrist strap or otherwise avoid any possibility of damage to the unit by static electricity.
- Page 9 Clean Room Ovens Element Replacement Remove the control panel and the internal cover as given above, and the rear motor cover. Disconnect the wires from the 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 element.
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Page 10: Fault Analysis
Clean Room Ovens 6.0 F AULT NALYSIS A. Oven Does Not Heat Up No power from the Check the fuses in the supply The SUPPLY light is supply line The SUPPLY light is The controller shows a The thermocouple has broken very high temperature or has a wiring fault or a code such as S.br... - Page 11 Clean Room Ovens MF21...
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Page 12: Circuit Diagrams
Clean Room Ovens 7.0 C IRCUIT IAGRAMS Single Phase only if overtemperature control fitted Filter (if fitted) relay or contactor Supply light Instrument Switch circulation coil overtemp. controller thermocouple temperature controller thermocouple Three Phase with Neutral if overtemperature control fitted Filter (if fitted) contactor Supply light... - Page 13 Clean Room Ovens Three Phase without Neutral (delta e.g. 208-240V) if overtemperature control fitted Filter contactor Supply light Instrument Switch instrument and fan circuit as above Three phase without Neutral (star – e.g. 380-415V) The circuit is similar to 7.4, but the “neutral” ends of the elements are not connected to a neutral terminal block.
- Page 14 Clean Room Ovens Stoving & Curing The following addition is made to the circuit. element circuit Relay or Contactor control circuit Fan Motor exhaust Fan Fault light o/temp if fitted COIL Pressure Switch MF21...
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Page 15: Fuses & Power Settings
Clean Room Ovens 8.0 F & P USES OWER ETTINGS Fuses F1-F2: Refer to the circuit diagrams. Internal supply Fitted if supply cable fitted. on-board and up to 16 Amps: fuses 32mm x 6mm type F Fitted on board to some types of EMC filter. other: GEC Safeclip Auxiliary Fitted on board to some types of EMC filter. -
Page 16: Specifications
Thank you for reading this data sheet. For pricing or for further information, please contact us at our UK Office, using the details below. UK Office Keison Products, P.O. Box 2124, Chelmsford, Essex, CM1 3UP, England. Tel: +44 (0)330 088 0560 Fax: +44 (0)1245 808399 Email: sales@keison.co.uk...
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