Frequency Inverter For Ac Fan Motors - Dantherm DanX XWPRS Series User Manual

3. INSTALLATION

3.3.10 Frequency inverter for AC fan motors

The voltage of the frequency inverter is dangerous whenever the equipment is connected to
mains. Incorrect installation of motor or frequency inverter may cause damage to the
equipment, serious injury or death. Touching the electrical parts may be fatal - even after the
equipment has been disconnected from mains: Wait at least 4 minutes for current dissipates.
Installation must comply with the instructions in this manual and the separate manual for the
frequency inverter as well as national and local legislation and safety regulations.
NB!
It is the responsibility of the user or installer to ensure correct earthing and protection in
accordance with national and local standards.
Frequency inverters delivered by Dantherm Air Handling are found in the fan section, where
they are stored under transport. Unpack the frequency inverters and mount them either on a
special framework on the fan section or in another place next to the DanX unit, depending on
what has been ordered.
If the frequency inverters are mounted on the fan section, all cabling in the DanX unit has
been done from the factory and only the following steps should be done to finish the
installation:
•
Remove the lower plastic protection for the frequency inverter terminals.
•
Connected the control current cable to the frequency inverters terminals (4) accordingly
to the DanX wiring diagram.
•
Connected the prewired cables for mains (3)
•
Connected the prewired cables for the motor (1).
If the frequency inverters are mounted separately from the DanX unit all cabling has to be
done according to the wiring diagrams and the inverters handbook supplied with the DanX
unit and the separate handbook for the Danfoss inverter.
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