VERDER CARBOLITE GERO CDLT 450 Manual

Installation, Operation and Maintenance Instructions
50°C Coal Drying Oven - CDLT Model: 450 Litres
No Controller
CDLT 450 + No Controller
MEN-CDLT450-005_NOCTRL (18-10-2021)

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. Use the product for the purpose for which it is intended.
1.0 Symbols and Warnings 4
1.1 Switches and Lights 4
1.2 General Warnings 4
2.0 Installation 5
2.1 Unpacking and Handling 5
2.2 Siting and Setting Up 5
2.3 Electrical Connections 6
3.0 Temperature Controller 8
4.0 Operation 9
4.1 Operating Cycle 9
4.2 Over-Temperature Control (if fitted) 9
4.3 Explosive Vapours 9
4.4 Coal Drying Application 9
5.0 Maintenance 11
5.1 General Maintenance 11
5.2 Maintenance Schedule 11
5.2.1 Cleaning 13
5.3 Calibration 13
5.4 After-Sales Service 13
5.5 Recommended Spare Parts and Spare Parts Kit 13
5.6 Power Adjustment 13
6.0 Repairs and Replacements 15
6.1 Safety Warning - Disconnection from Power Supply 15
6.2 Safety Warning - Refractory Fibre Insulation 15
6.3 Panel Removal 15
6.4 Temperature Controller Replacement 16
6.5 Fuse Replacement 16
6.6 Element Replacement 17
6.7 Thermocouple Replacement 17
6.8 Solid-state Relay Replacement 17
7.0 Fuses and Power Settings 18
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7.1 Fuses 18
7.2 Power Settings 18
8.0 Fault Analysis 19
A. Oven Does Not Heat Up 19
B. Oven Overheats 19
9.0 Wiring Diagrams 20
10.0 Specifications 21
10.1 Environment 21
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1.0 Symbols and Warnings
1.1 Switches and Lights
Instrument switch: when the instrument switch is operated the
temperature control circuit is energised.
1.2 General Warnings
DANGER – Electric shock. Read any warning printed next to this
symbol.
WARNING: Risk of fatal injury.
DANGER – Hot surface. Read any warning printed next to this
symbol.
WARNING: All surfaces of a product may be hot.
DANGER – Read any warning printed next to this symbol.
Caution – Double Pole/Neutral Fusing
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2.0 Installation
2.1 Unpacking and Handling
When unpacking or moving the product, always lift by its base; do not use the door or
any other projecting cover or component to support the equipment when moving it.
Use a fork lift or pallet truck to move the product; position the product on a level
surface and use an adequate number of personnel to safely move the product into
position.
Carefully remove any packing material from inside and around the product before use.
Avoid damaging the surrounding insulation when removing packing materials.
Locate the shelves as required.
Some models may be lifted by fitting lifting bolts to captive threads which are fitted in
the top of the case, whilst others may have welded on lifting eyes.
NOTE: This product contains Refractory Ceramic Fibre (also known
as Alumino Silicate Wool - ASW). For precautions and advice on
handling this material see section 6.2.
2.2 Siting and Setting Up
Note: This LGP oven is supplied with a floor stand that elevates it approximately 500
mm off the ground.
Place the product on a level surface in a well ventilated area.
Site away from other sources of heat and on a non-flammable surface that is resistant
to accidental spillage or hot materials.
The surface on which the equipment is mounted should be stable and not subject to
movement or vibrations.
The height of the mounting surface is important to avoid operator strain when loading
and unloading samples.
Unless otherwise stated elsewhere in this manual, ensure that there is at least 150
mm of free space around the back and sides of the product. Clear space is required
above the product to dissipate heat.
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