Carbolite HTF 18 - Manual (Page 2)

MF47-3.05 2
1.0 I NTRODUCTION
1.1 HTF Range
This manual applies to the 1700-1800°C furnace models HTF 17/5, HTF 17/10, HTF 18/4 and
HTF 18/8, from 2003 onwards. These are bench mounted units sharing a common case size and
design principles.
1.2 Switches and Lights
1.3 Warning Symbols
1.4 General Warnings
READ this manual through before installing or operating the furnace.
COMPETENT people only should be permitted to install, maintain and operate the furnace.
Installation and maintenance should be done by a qualified electrician, or by someone with a
thorough understanding of electrical components and safety. Operating should be done by a
person who has read this manual and is aware of and understands the safety issues in using high
temperature electrically heated equipment.
Heat Light: the adjacent light glows or flashes to indicate that power is
being supplied to the elements
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.
FAULT – read any information printed by this symbol.
Instrument switch: when the instrument switch is operated the temperature
control circuit is energised.