Removal and replacement procedures 33
5.
Pull the fan controller from the ceiling (2).
Replacing the cooling fan controller
1.
Insert the fan controller into the ceiling (1).
2.
Replace the four screws (2).
3.
Reconnect the outbound 24 V dc fan power cables.
4.
Reconnect the inbound 230 V power connectors.
5.
Return power to the controller.
6.
Take manual control of the fan speed in the affected zone from the ECS panel.
7.
Verify that the fans work properly.
8.
Return the fan bank to the AUTO mode of operation.