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Screw for setting adjustment (set point)
Terminal block
Minimum speed adjustment (cut-off)
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D
to increase pressure: turn screw clockwise
E
cut-off: turn setting to 2)) and the speed of the fan will vary from 0 to 100% depending on
the condensing pressure, whereas if turned clockwise it is possible to set the minimum fan
speed.
The control is factory set so that the fan is able to work from 0 to 100% of its speed, since the fans
normally used are capable of operating throughout the whole tension range.
Fig. 11
27