Frico Thermozone AD300A Mode D'emploi page 28

Thermozone AD300A/E, AD400A/E
the pressure. An angle up to 15° is recommended. THe
more load caused by negative pressure, temperature
differences and wind, the more should the air beam be
directed outwards.
Basic air low settings
The air low is set with the air low selector so that the
speed of the air is 3-4 m/s 1m above the loor. The
direction of the air beam and the air speed may need
to be adjusted more exactly depending on the load on
the door.
Adjusting the air curtain and air stream
The direction and the velocity of the air stream should
be adjusted in regard to the load on the doorway. Pres-
sure forces the air stream to bend towards the interior
of the room (when the room is heated and the exterior
is cold).
The air stream should be directed outwards to resist
the pressure. An angle up to 15° is recommended. The
more load caused by negative pressure, temperature
differences and wind, the more should the air beam be
directed outwards.
Basic air low settings
The air low is set with the air low selector so that the
speed of the air is 3-4 m/s 1m above the loor. The
direction of the air beam and the air speed may need
to be adjusted more exactly depending on the load on
the door.
Trouble shooting
If the fans stand still, check the following:
a) Power supply; check fuses, circuit-breaker,
time switch (if any) that starts and stops
the unit.
b) That the air low selector is correctly set.
c) That the position limit switch is working
(if any).
If the error cannot be ixed, please contact qualiied
service technician.
If there is no heat, check the following:
a) Power supply to electric heater; check fuses and
circuit-breaker (if any).
b) Thermostat settings and actual temperature.
c) That the output selector (if any) is set
correctly.
d) That the overheat protection has not been
released.
Overheating (applies to units with electric heat)
The Thermozone is equipped with an overheat protector.
If it is released due to overheating, reset as follows:
1) Disconnect the electricity with the fully isolated
switch.
2) Investigate the matter and repair the fault.
3) Reset is performed as follows:
• Locate the red button which is located inside
the unit at the inner gable to which the fan and
the motor are attached. You can see it if you
remove the front plate, see page 2.
• Press the button until a click is heard
4) Connect the Thermozone again.
If the error cannot be ixed, please contact qualiied
service technician.
Maintenance
Note! Disconnect electricity prior to cleaning or inspec-
tion (units with electric heat can be supplied from more
than one connection).
The fan motors and the other components require
no maintenance other than cleaning when necessary,
however at least once year. Grille, impeller and ele-
ments are vacuum cleaned or dried clean with a damp
cloth. Open the inspection hatch to reach elements and
impellers.
Safety cut-out
(applies to units with electric heat)
If the installation is protected by means of a safety cut-
out, which trips when the appliance is connected, this
may be due to moisture in the heating element. When
an appliance containing a heater element, has not been
used for a long period and is stored in a damp environ-
ment, moisture can enter the element. This should not
be seen as a fault, but is simply rectiied by connecting
the appliance to the mains supply via a socket without a
safety cut-out, so that the moisture can be driven out of
the element.
The drying time can vary from a few hours to a few
days. As a preventive measure the Thermozone should
occasionally be run for a short time when it is not being
used for an extended period of time.
The garantee is only valid if the Thermozone
units are used in the manner intended by the
manufacturer and in accordance with the installation
and maintenance instructions.
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