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IOM_ACVBA-ACVA_351a2402_207958_180109_EN
ACVBA-ACVA
PACKAGED VERTICAL COMPACT UNITS
AIR-AIR
OPTIONAL
EC MOTOR FANS
Working on device
Danger due to electric current
Waiting period at least 3 minutes!
Attention, automatic restart!
It is generally forbidden to carry out work on electical live parts. The protection class
of the device when it is completely open is IP00! Be carefull not to touch hazardous
voltages directly.
The rotor is not protected against indirect contact neither by supplementary or
reinforced insulation nor by connection to safety-earth in accordance with EN 60204-
1. Therefore the installer must provide the needed protection according to the EN 61140
before he connects the motor to the power supply. This protection could be for
example a guard grille (Product overview: Application operational area and
Installation: General).
When the motor runs independently due to an air flow it will continue running after it
has been turned off. There migh be dangerous voltajes of over 50 V
on the motor’s
internal connections due to the operation of the generator.
The safe isolation from the supply must be checked using a two-pole voltage detector.
Even after disconnecting the main voltage, life-threatening charges may appear
between the protective ground “PE” and the main connection.
The protective earth is conducting high discharge currents (depending on the
switching frequency, current-source voltage and motor capacity). Earthing in
compliance with EN specifications shall therefore be observed even for testing and
trial conditions (EN 50 178, Art. 5.2.11). Without earthing, dangerous voltages can be
present on the motor housing.
Maintenance work shall only be carried out by suitably qualified personnel.
The use of capacitors entails the danger of death even after the device has been switched
off if the energized parts are touched. The controller housing may only be removed or
opened when the power line has been switched off and a period of three minutes has
elapsed since switching it off.
The fan/motor may switch on and off automatically for functional reasons.
After a power failure or a main disconnection an automatic restart of the fan takes place
after voltage returns!
Wait for the fan to come to a complete standstill before approaching it!
In the external rotor motor, the external rotor turns during operation!
WARNING!
WARNING!
WARNING!