10 - EN
EN - 11
Electrical connection
■
Connect the fan in accordance with the
enclosed diagram, EN 60204 and the
locally applicable regulations;
■
The power supply cable can be fed
from inside through a gland in the base
or over the roof;
■
The electrical connection is made on
the external mains switch or terminal
box (VDA 200 to 560), or under the mo-
tor protection cover (VDA 160 and 180).
Setting into operation
■
Check the free rotation of the vane;
■
Check whether the electrical connec-
tions have been made in accordance
with the supplied diagram;
■
The fan must be protected against over-
loading;
■
If motor protection is fitted, set to 5%
above the current indicated on the VDA
type plate;
■
Start the fan;
■
Check the direction of rotation of the
vane (see arrow on fan). Incorrect rota-
tion may result in the motor burning out;
■
Measure the current consumption of
each phase. The measured current (on
a nonvariable speed fan) must not be
higher than stated on the type plate.
The protection must be set to the high-
est current measured. On a variable
speed fan, the current must be meas-
ured over the entire speed range. Set
the protection to the highest current
measured.
N.B. Not all VDA roof fans are speed
variable. Please check in the documen-
tation;
■
The permissible temperature of the air
to be exhausted is -30°C to +40°C for
the types VDA 160 and 180, and -30°C
to +120°C for the types VDA 200 to 560;
■
The fan is designed for continuous
operation and must be not be switched
on and off at intervals of less than 5
minutes;
■
Do not use the mains switch as On/Off
switch. This may damage the fan (at
capacities > 2.0 kW).
Inspection/Maintenance
■
Before carrying out any inspection/
maintenance activities, isolate the fan
from the mains; first turn off the op-
erating switch, followed by the mains
switch;
■
To enable inspection, remove the upper
casing(7) with protective grille(1);
■
Loosen the nuts(5) and remove the
outer assembly plates(6);
■
Remove the upper casing(7) and the
protective grille(1);
■
The motor is fitted with ball-bearings
with a grease filling, which under
normal circumstances is sufficient for
30,000 hours of operation;
■
Check that the vane, motor and base
are not damaged or dirty;
■
Clean the components if necessary.
Avoid damaging of the protective coat-
ing;
■
The fan may not be sprayed with water;
■
Following assembly, switch on the fan;
first the mains switch, followed by the
operating switch.
