9
Prior to initial use
1. Correct mechanical installation
must be verified.
2. Correct connection to the
heating system on-site must be
verified.
3. It must be ensured that hot
surfaces are protected against
accidental contact.
4. It must be verified that the
electrical wiring of the units has
been carried out in compliance
with the applicable directives
and standards using the sup-
plied wiring diagrams.
5. The fan space as well as the
inlet and outlet area must be
checked for the presence of
foreign bodies.
6. It must be ensured that all air
outlets are open.
7. The fan must be checked for
smooth operation.
8. Switch on the power to the con-
trol unit (accessory) and switch
on the unit via the control
switch of the control.
Commissioning
Switching off
AttENtiON
Commissioning can only
take place when it is ensured
that mounting and electrical
installation has been carried
out in compliance with the
pertinent requirements of the
EC Directives.
Set the switch of the respective
control unit to the “Off” or “0”
position.
For extended periods of non-
use:
■
Disconnect the electrical con-
nection in all poles.
■
Shut-off the heating medium
connection.
■
Where there is s risk of frost,
the entire system must be
drained if no suitable antifreeze
agent has been added.
NOtE
The heat exchanger can only
be drained completely using
compressed air.
9. It must be ensured that the fan
rotates in the direction of the
arrow.
The direction of rotation can
be changed by interchanging
two phases.
10. It should be noted that when
using a speed control (acces-
sory) the power of the control
unit must correspond to the
power of the motor.
During initial
commissioning
During initial commissioning, all
regulating, control and safety
devices must be checked for their
proper functioning and correct
adjustment.
1. The power consumption of the
fan must be measured.
The nominal current must not
exceed the values on the rating
plate at the respective opera-
ting speeds.
2. Check the control/regulating
function of the fan.
3. Check the motor protection
function of the fan.
4. If fitted
,
check the function of
the frost protection and room
thermostats.
5. Check the complete system for
de-energised installation and
possible vibrations.
6. Check the heating medium sup-
ply pipes for correct connection
and tightness.
NOtE
After disconnecting the control
unit from the power supply, in
the event of a power failure or
shutdown on faults, the con-
trol switch must always first be
switched to back to the “0
”
position.
