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P a g e
Simplified circuit diagram:
7.
Operation
:
The motors that are used are self-protecting. They cool themselves down with the air that
they take in from the room. They are protected thermostatically: they come on
automatically at high speed when the temperature below the fire chamber reaches 80°C.
They may come on at any time as soon as this temperature is reached. It can happen when
the fans are off or on slow speed. This is not a temperature regulation, but a protection
against over heating. As a security measure, for the protection of the motors, should there
be an electrical power failure, one should reduce the combustion rate of the fire. During
normal operation, the air that comes in at an average temperature of 18°C, is expelled at a
temperature of 150°C.
In order for the motors to be properly “run-in” it is recommended that they be used for
several hours at high speed (position 2) before using low (speed position 1).
