Continuous product development at IV Produkt may give rise to specification changes without notice.
Flexomix 060-950
DU14.F.110907.05.EN
Measures
Before working on the unit – switch off the unit via the control
terminal, then turn the safety switch to the 0 position. For
dual engines, there may be two
safety switches.
WARNING!
High voltage and rotating impeller, risk of
personal injury. Before working on/servicing
the unit
–
switch off the unit via the control
terminal, then turn the safety switch to the 0
position and lock it.
WARNING!
Rotating fan impeller, risk of personal injury.
Shut down the air handling unit and wait at
least 3 minutes before you open the inspection
doors.
Operation and Maintenance
Instructions
General
The function of the fan is to transport air through the system,
i.e. the fan must overcome the air stream resistance present
in air diffusers and grilles, the ducting and the air handling
unit.
The fan speed is adjusted to provide the correct airflow. If
the fan generates a lower airflow, this may disturb ventilation
system performance.
• If the
supply airflow
is too low, there will be imbal
-
ance in the system and this may cause draught
problems. If the ventilation capacity is too low, this
may contribute to poor room climate.
•
If the
extract airflow
is too low, poor ventilation capac-
ity will result. Imbalance can also lead to damp air being
pressed out into the building structure. An excessively
low extract airflow causes increased power consump-
tion if a means of heat recovery is installed. The reason
why the fan impels too little air may be effect of dust
deposits on the impeller blades.
• If a centrifugal fan rotates in the
wrong direction
,
the air will flow in the correct direction but with re
-
duced capacity. The direction of rotation should
therefore be checked.
Fan unit with EC motor
1. EC motor with control unit
2. Fan impeller
3. Anti-vibration mountings
3
1
2
Fan unit including mounted frequency inverter
1. Motor
2. Control unit
3. Fan impeller
4. Anti-vibration mountings
1
2
3
4
