Replacing Roof Ec Fans; Procedure - ABB ACS580MV Hardware Manual

116 Maintenance

Replacing roof EC fans*

Procedure


1. Stop, de-energize and ground the drive following the steps in section
the drive for maintenance
2. Switch off the motor starter of the fan unit to isolate the fan unit from the auxiliary
power supply. To identify the motor starter, see the
3. Remove the hex-head combination screws that attach the top cover to the fan box. Lift
the top cover and pull it away from the fan box.
M6X12
combination screw
4. Disconnect the control and power supply cables of the fan.
5. Remove the fastening screws from the support plate and the duct ring.
6. Using the lifting eyes in the fan housing cover and a lifting gear, lift off the support
plate with the fan attached to it.
6 M6X16
combination screw
before you start the work.
Shutting down
ACS580MV Wiring Diagram.
Support beam