Carbolite VCF Series - Manual (Page 8)

VCF
8
MF25 – 3.09
5.0 R EPAIRS & R EPLACEMENTS
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. These materials
may be in the form of blanket or felt, formed board or shapes, mineral wool slab or loose fill wool.
Whilst there is no evidence of any long term health hazards, we strongly recommend that safety
precautions are taken whenever the materials are handled.
Exposure to fibrous dust may cause respiratory disease.
When handling the material always use an approved respiratory protection equipment
(RPE-i.e. FFP3), eye protection, gloves and long sleeved clothing.
Avoid breaking up waste material. Dispose of waste in sealed containers.
After handling rinse exposed skin with water before washing gently with soap (not
detergent). Wash work clothing separately.
Before commencing any major repairs we recommend reference to the European Association
representing the High Temperature Insulation Wool industry (www.ecfia.eu)
We can provide further information on request. Alternatively our service division can quote for
any repairs to be carried out at your premises or ours.
5.3 Panel Removal
For replacing parts, panels may need to be removed. Refer to the instructions below, and to the
outline drawing for definition of panels. To remove the bottom panel it is necessary to turn the
furnace onto its back: do this carefully using two or more people.
5.4 Temperature Controller Replacement
200 & 201. Access to the back of the control panel can be effected by removal either of the front
panel, or of the adjacent right panel.
Before handling the controller: wear an anti-static wrist strap or otherwise avoid any possibility
of damage to the unit by static electricity.
Refer to the instructions supplied with the replacement controller.
2132, 2416, 2408 etc. Ease apart the two lugs at the side; grip the instrument and withdraw it from
its sleeve; push in the replacement.
5.5 Solid-state Relay Replacement
Disconnect the furnace from the supply and remove the right panel. The SSR is mounted on the
vertical aluminium power plate.
Make a note how the wires are connected to the solid state relay, and disconnect them. Remove the
solid state relay from the aluminium plate.