Carbolite HRF 7/45 - Manual (Page 2)

HRF
2 MLF05-1.23
1.0 S YMBOLS & W ARNINGS
1.1 Switches and Lights
1.2 Warning Symbols
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. Use two
people to carry the furnace where possible.
Remove any packing material from the door gear and furnace chamber before use.
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.
Ensure that there is free space around the furnace. Do not obstruct any of the vents in the control
section: they are needed to keep the controls cool. Keep a space of 50mm free at the back of the
furnace behind the circulating fan.
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.
If the optional chimney is supplied, then fit it into the hole in the top of the furnace case. If the
furnace is to be used to heat substances which emit fumes, then a fume extraction duct of about
150mm inlet diameter may be placed directly above the chimney outlet.
Do not make a sealed
connection to the furnace chimney as this causes excessive airflow through the chamber and gives
poor temperature uniformity.
DANGER of electrical shock– read any warning printed by this symbol.
DANGER – hot surface. Read any warning printed by this symbol.
WARNING: all surfaces of a furnace may be hot.
DANGER – read any warning printed by this symbol.
Heat Light: the adjacent light glows or flashes to indicate that power is
being supplied to the elements
Instrument switch: when the instrument switch is operated the temperature
control circuit is energised.