Electrical controller’s common characteristics:
Two speed systems that adjust air volume and two different heat powers (C1, C2).
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Thermal Limitation:
Due to its special design, the only thermal limitation of this equipment is that, to
work the heating, there must be any speed selected, what allow us to choose the maximum heating
capacity with the minimum ventilation.
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Thermostat of delay:
When the equipment is stopped, and it has been working, the electrical
heater is still heating during several minutes by thermal inertia with the consequent increase of
temperature. In order to avoid internal damages by overheating, there is a delay thermostat settled at
50ºC having the function to keep running or turn on again the fans automatically until the temperature
inside the equipment goes under 50ºC.When done, the fans stop automatically. The emergency
speed is indicated by a flashing green LED
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Safety thermostat:
Thanks to this security system the heating won’t stop for an external temporally
reason and only will turn on against a real failure. For example, a delay in cleaning the inlet grill o a
high external temperature would be an external temporally reason. Instead, the motor damage could
be a failure capable of blocking the heating system.
If the internal temperature increases up to 50ºC the air curtain reacts increasing steep by steep the
fan speed until the temperatures goes under 50ºC. If the air curtain reaches the maximum speed and
the temperature inside is still over 50ºC, the air curtain automatically reduce the heating power steep
by steep until OFF position if necessary.
The air curtain returns automatically to the programmed fan speed and heat step if the temporally
failure cause disappears and the internal temperature decreases to 40ºC.
The programmed speed and heat are indicated by lighted green LED’s. The emergency speed is
indicated by a flashing green LED. The emergency heat disconnection in indicated by a red LED
“OFF”. The heat blockage is indicated by the same red LED “OFF” flashing at higher speed. In this
situation manual reset is needed.
Auxiliary functions controller:
In case of thermostat installation, the bridge must be removed from the inside of the controller between
Terminal 4 and 5.
Optional room thermostat:
The curtain is equipped with the necessary contacts (4 and 5 terminal
block) to install a room thermostat for ON/OFF control of the heating elements that turns off when
reaching the temperature programmed. Installation of room thermostat is recommended when the air
curtain is installed in a small dimensions area or when the air curtain is used also as a heating element of
the premise. In case of the thermostat installation, the bridge inside the terminal 4 and 5 must be
removed.
