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Heatpipe Furnace Models 17702W, 17702P, 17702S (13
–
07/20)
SAFETY
CAUTIONARY NOTE
Products of Isothermal Technology Ltd are intended for technically trained and competent personnel
familiar with good laboratory practice. It is expected that personnel using this equipment will be
knowledgeable and skilful in the management of apparatus which may be under power or under extremes
of temperature (molten metals, cryogenic liquids, etc.) and will appreciate the hazards which may be
associated with, and the precautions to be taken with, such equipment.
THIS EQUIPMENT MUST BE EARTHED
The furnace is supplied with a fuse carrier fitted with a neutral link. This is clearly labelled and is for use
with a mains system with a neutral line, such as the UK supply. If the furnace is to be used on a system
where both supply lines are live with respect to earth then the neutral fuse link should be replaced with a
fuse. A spare fuse is supplied with the furnace.
FUSE AND NEUTRAL LINK REPLACEMENT
Hazardous voltages are exposed when the rear furnace panel is removed. Before removing the panel, you
must isolate the furnace from the electrical supply. To replace the main electrical fuse or to replace the
neutral link bar it is necessary to remove the rear panel; see warning above. The panel will become free
after the four corner screws are removed.
The fuse holders will be seen at the lower right-hand side of the cabinet. The left-hand fuse holder will
always contain a fuse. The right-hand fuse holder will leave Isotech with a neutral shorting bar, they are
clearly labelled. As explained elsewhere, if your local supply does not have a neutral line but has both lines
live with respect to earth this link should be replaced with a fuse and the holder labelled to this effect.
The top half of the fuse carrier lifts from the lower body.
