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5. In this example Fan 1 and Fan 2 work continuously, and Fan 3 is an efficiency fan whose
maximum speed is 65% of the fan’s possible speed. The ventilation capacity reflects the efficiency
fan’s capacity.
9.2.2.4
Fan Rotation
Using the same fan or a limited number of fans exclusively can lead to mechanical wear and tear, for
example to the drive belt. To minimize this damage, Trio enables “rotating” between fans. The rotation
function switches between cycle fans in the same stage.
To enable fan rotation:
1. Go to System > Control Strategy > Ventilation.
2. Enable Fan Rotation and Minimum Ventilation Cycle.
3. Go to Climate > Ventilation.