5 | Installation
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• Make sure that the fan motor is connected such that is running when the machine is
started.
5.8.1 Wiring Diagram Heat Exchanger Fan Motor
230/400 VAC fan motor version:
Delta connection (low voltage):
Star connection (high voltage):
U1 = Black ; V1 = Blue ; W1 = Brown ; U2 = Green ; V2 = White ; W2 = Yellow
U = 230/400 VAC 50 Hz ; I = 0.9/0.5 A
U = 230/400 VAC 60 Hz ; I = 0.95/0.54 A
P = 0.195 kW
• Make sure that the air flow blows in the right direction according to the following il-
lustration.
If the rotation of the motor must be changed:
• Switch any two of the motor phase wires.
5.9 Electrical Connection of the Monitoring Devices
NOTE
In order to prevent potential nuisance alarms, Busch recommends that the control system
is configured with a time delay of at least 10 seconds.
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