Frico Thermozone AG 4000 A Serie Mode D'emploi page 15

Basic setting fan speed
Set the fan speed using the fan speed controls
so that the air speed 1 metre above the floor
is 3-4 m/s. Note that the airflow direction
and speed may need further fine adjustment
depending on the loading of the door.
Service, repairs and maintenance
For all service, repair and maintenance first
carry out the following:
1. Disconnect the power supply.
NOTE! Units with electrical heaters can be
supplied from more than one connection.
2. The service hatch is opened by first opening
the intake grille and then slackening off
the screws in the underside of the unit, as
illustrated on page 3.
Maintenance
Since fan motors and other components are
maintenance free, no maintenance other than
cleaning is necessary, this can vary depending
on local conditions. Undertake cleaning
at least twice a year. Grille, impeller and
elements can be vacuum cleaned or wiped
using a damp cloth. Avoid the use of strong
alkaline or acidic cleaning agents.
Overheating
The air curtain unit with electric heater is
equipped with an overheat protector. If it is
deployed due to overheating, reset as follows:
1. Disconnect the electricity with the fully
isolated switch.
2. Allow the electrical coil to cool.
3. Determine the cause of overheating and
rectify the fault.
4. Reconnect the power and start the unit.
All motors are equipped with an integral
thermal safety cut-out. This will operate,
stopping the air curtain should the motor
temperature rise too high. The cut-out
will automatically reset when the motor
temperature has returned to within the
motor's operating limits.
All manuals and user guides at all-guides.com
AG 4000 A/E
Fan replacement
1. Determine which of the fans is not
2. Disconnect the cables to the relevant fan.
3. Remove the screws securing the fan and lift
4. Install the new fan in reverse order to the
Replacing the electric coil
1. Mark and disconnect the cables to the
2. Remove the mounting screws securing the
3. Install the new coil in
Trouble shooting
If the fans are stationary, check the following:
1. Operating power supply to the unit;
2. That the air flow selector is correctly set.
3. That the position limit switch is working (if
4. That the intake grille is not dirty.
If there is no heat, check the following:
1. Power supply to electric heater coil; check
2. That the heat demand exists; check
3. That the output selector (if any) is set
4. That the intake grille is not dirty.
If the fault cannot be rectified, please contact
a qualified service technician.
Safety cut-out
(applies to units with electric heater)
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
functioning.
the fan out.
above.
electric coil.
coil in the unit and lift the coil out.
the above.
check fuses, circuit-breaker, time switch/
thermostat (if any) that starts and stops the
unit.
installed).
fuses and circuit-breaker (if any).
thermostat settings and actual temperature.
correctly.
GB
reverse order to
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