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4.3
Regular use
The heater ventilates for about one and a half minute after the heater has been
switched off. During this one and a half minute the fan cools the burning chamber.
The "ventilate" mode is particularly useful in the summer. However, make sure that
there is enough oil in the tank, since the oil pump could seize if it is not being
lubricated by the oil.
The selector switch has four positions:
Position 0 (off):
•
The heater is switched off.
Position 1 (automatic heating):
•
Turn the switch to this position to control the
heater external by means of a 24 Volts signal
or with a room thermostat (see paragraph 3.4
and 4.4).
Position 2 (continuous heating):
•
Option to manually turn on the heater. The fan
starts working and the heater will ignite.
Position 3 (continuous ventilating):
•
Option to ventilate only.
4.4
Room thermostat
It is advised to use a room thermostat with a differential of ± 2C.
It will activate the heater when the room temperature drops 1C below the set
temperature, and deactivate when the room temperature rises 1C above the set
temperature. Using a thermostat of this kind will reduce the likelihood of failures and
improve the performance of the heater.
For the heater to be regulated automatically, the burner controller has to be in mode "automatic". Set
the room thermostat to the required temperature. When the room temperature falls below the set level,
the heater will start and will keep heating until the temperature reaches the set level.
Depending on the type of room thermostat in use and where it is positioned, the room temperature is
able to vary within a band either side of the temperature to which the thermostat is set. The difference
between the temperature at which the room thermostat cuts in and the temperature at which it cuts out
is referred to as the thermostat's differential. The smaller the thermostat's differential, the more often
the heater will come on and go off.
V16 HHO SERIES
29
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