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Fancom VLR.6
6. Adjustment procedures
6.1 Fan without DSR-feedback
1.
Switch off the power supply to the end station.
2.
Control the jumper positions.
3.
Switch on the power supply.
4.
Set switch and knob to AUT.
5.
Turn potentiometer P1 on the VLR-board completely counter-
clockwise.
6.
Turn potentiometer P2 on the VLR-board completely clockwise.
7.
Set the knob on the front to MAN. and turn until the fan starts
running.
8.
Using potentiometer P2 adjust the minimum voltage between "U"
and "V" so that the fan is barely running. A Fancom fan is normally
2-wire connected and the voltage between "U" and "V" not set below
60Vac. (With a 3-wire connection , do not set the Fancom fan below
45Vac).
9.
Turn the knob on the front to a minimum position (not to AUT.),
until the fan stops running.
10. Using potentiometer P1 adjust the minimum voltage between "U"
and "V" (for a Fancom fan, not below 55Vac).
!
If the fan is to stop running at 0% control, do not carry out steps 9
and 10. The fan may only stop running completely with a 2-wire
connection
6. Adjustment procedures
7
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