I N S T A L L A T I O N
MODULATING PRESSURE CONTROL
1.
Screw for setting adjustment (set point)
2.
Terminal block
3.
Minimum speed adjustment (cut-off)
Adjustments :
a.
to increase pressure: turn screw 1 clockwise
b.
cut-off: turn setting to OFF 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.
42
3
1
2
05.08 Ref.200989 Rev.100