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Idiomas disponibles
GB
Adjustment of the air curtain and air flow
The direction and speed of the air flow
should be adjusted considering the load on
the opening. Pressure forces affect the air
stream and make it bend inwards into the
premises (when the premises are heated and
the outdoor air is cold). The air stream should
therefore be directed outwards to withstand
the load. Approximately 15° is a suitable
angle. Generally speaking, the higher the load,
the greater the angle that is needed.
Basic setting fan speed
The fan speed is set using the speed control.
Note that the air flow direction and speed
may need fine adjustment depending on the
loading of the door.
Filter
The heat coil plate distance in combination
with the hole diameter of the intake grille
protects against dirt and blockage and makes
a separate filter unnecessary.
Service, repairs and maintenance
For all service, repair and maintenance first
carry out the following:
1. Disconnect the power supply.
2. The service hatch is opened by first opening
the intake grille and then slackening off the
screws in the side of the unit, as illustrated
on page 3.
Maintenance
Since the fan motors and other components
are maintenance free, no maintenance other
than regular cleaning is necessary. This can
vary depending on local conditions, however
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
All motors are equipped with an integral
thermal safety cut-out. This will operate,
stopping the air curtain should the motor
0
AGV 4000 W
temperature rise too high. The cut-out
will automatically reset when the motor
temperature has returned to within the
motor's operating limits.
Fan replacement
1. Determine which of the fans is not
functioning.
2. Disconnect the cables to the relevant fan.
3. Remove the screws securing the fan and lift
the fan out.
4. Install the new fan in reverse order to the
above.
Replacing the water coil
1. Shut off the water supply to the unit.
2. Disconnect the connections for the water
coil.
3. Remove the mounting screws securing the
coil in the unit and lift the coil out.
4. Install the new coil in reverse order to the
above.
Draining the water coil
The drain valve is on the underside of the coil
on the connector side. It can be accessed via
the service hatch.
Trouble shooting
If the fans do not run, check the following:
1. Operating power supply to the unit; check
fuses, circuit-breaker, time switch (if any)
that starts and stops the unit.
2. That the air flow selector is correctly set.
3. That the position limit switch is working (if
installed).
4. That the overheat protection for the motors
has not been deployed.
5. That the intake grille is not dirty.
If there is no heat, check the following:
1. That there is hot water to the water
coil. (Check the circulation pump - if
applicable.)
2. That the heat demand exists; check
thermostat settings and actual temperature.
3. That the intake grille is not dirty.
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