AIR HANDLING UNIT FUTURE
INSTRUCTIONS FOR OPERATION AND MAINTENANCE
Fan secon, motors and frequency converters
2017-02-13 V. 2.0 35
and maximum frequency instructions (specific to the fan in question). Other parameters are according to the
factory settings of the frequency converter in question, and if necessary, they are set as desired at the site.
If the frequency converter parameterisation is finalized at the site, minimum frequency instructions must be set
to approx. 10 Hz and maximum frequency instructions according to the fan-dependent maximum frequency.
The current limit is set close to the rated current. The frequency converter motor parameters are set according
to the plate values.
The frequency converter takes care of motor output protection and frequency converter overload protection.
The short-circuit protection for the frequency converter and overload protection for the installation must be
provided with, for example, a fuse protection. Protective earth must be provided, according to the regulations.
Check the rotation direction of the fan before final commissioning.
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