Carbolite HTF Series - Manual (Page 3)

RHF & HTF
MF22 3.09
3
2.0 I NSTALLATION
2.1 Unpacking & Handling
When unpacking or moving the furnace always lift it by its base. Never lift it by the door. Even the
smaller models contain transformers and are heavy: use two or more people to carry them.
Remove any packing material from the door gear and from inside the furnace chamber. The door
can be lifted manually and supported open, but in the electric door models it is not
counterbalanced. Close the door with care to prevent any damage to insulation surfaces; or for
electric door models, await electrical connection and close the door electrically.
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.
2.2 Siting & Setting Up
Place the furnace in a well ventilated room, away from other sources of heat, and on a surface
which is resistant to accidental spillage of hot materials. Do not mount the furnace on an
inflammable surface. Do not mount the furnace where radiated heat from an open door could cause
damage.
Ensure that there is free space around the furnace. Do not obstruct any of the vents in the case:
there are cooling fans in the case which must not be obstructed.
Ensure that the furnace is placed in such a way that it can be quickly switched off or disconnected
from the electrical supply - see below.
2.3 Fitting the Heating Elements
Wear eye protection when handling the heating elements. See the warning in section 5.6.
The Molybdenum Disilicide elements are EXCEPTIONALLY FRAGILE and are packed separately,
together with other items as shown in the list.
separately packed
items
RHF 17/25
HTF 18/15 HTF 18/27
Elements 6 9
Element clamps 12 18
Element clips 12 18
Braids 1 set 1 set
Separators/Blocks 6 9
Chimney unit 1 1
Remove the top access panel to allow element fitting.
Fit the heating elements vertically into the chamber. Handle the elements with great care. The
installation of these elements is described in section 5.6. Connect the aluminium braids securely as
indicated in the element installation instructions.