USING THE CONTROLS
Neon Indicator
When your heater is plugged in and switched on at the
mains, the neon indicator will glow showing that the
heater is available for use, although the heating element
may not be energized, depending on the setting on the
thermostat knob:
Thermostat
The thermostat knob is calibrated with a scale marked *
and 1-5. The lowest setting * represents a temperature
of approximately 5
0
C and is suitable for frost protect on
use. (See section headed “Using the Heater for Frost
Protection”).
The other settings represent a range of temperatures
dependent on a number of factors including the size of
the area to be heated and the outside temperature
Actual settings should be found by experience for each
set of conditions. The heater will
not
emit heat if the
temperature of the air surrounding the heater is above
that set on the control knob, although the mains neon
indicator will glow showing that the heater is available
for use. The heating element will energize if the
thermostat knob setting is increased, as indicated by an
audible “click” when the thermostat knob is turned.
Thermal Overload Cut-Out
In case the heater should, for any reason, overheat (for
example, if it is inadvertently covered) a resettable
thermal overload cut-out is incorporated for safety
reasons.
If the heater should overheat the Cut-Out will operate,
isolating the heating elements from the electricity
supply.
Re-setting the Cut-Out
If the cut-out operates for any reason first
disconnect the heater from the electricity supply by
removing the plug from the socket. Examine the
heater to find the cause of the overheating and
rectify if possible. If in doubt as to the cause you
should consult a competent person with experience
of repairing domestic electrical appliances and in
full knowledge of the possible hazards involved.
Once the cause of the overheating has been
rectified the cut-out may be re-set by plugging the
appliance back into the mains supply. The heater
will automatically resume normal operation.
Using the Heater for Frost
Protection
The Heater may be used to protect water-tanks, pipes
and other frost-sensitive areas by setting the thermostat
to the Frost position.
When the thermostat is set at this
position the heater elements will emit heat only when
the temperature in the vicinity of the heater falls to
below approximately 5
0
C.
The heater will continue to emit heat until the
surrounding air again reaches approximately 5
0
C and
will then switch off until the temperature falls again. In
this way, frost protection will be provided in the area
surrounding the heater.
The Heater will also guard against frost in a confined
space such as a small greenhouse (see section
covering greenhouses, etc) or unheated WC, provided
the volume of the space in which it is installed is
appropriate to its heat output.
Using the Heater in a
Greenhouse
Thermostat Knob Mains Neon Indicator
