WERTAIR CMC90/10 Manual De Instrucciones página 20

1. adjustment of max. pressure (cut out)
Max pressure can be adjusted through the two screws "A" and "B" or "A".
Rotate the screws "A" and "B" or "A" clockwise in order to increase pressure.
2. adjustment of differential pressure (cut in)(where available).
Differential pressure can be adjusted through the screw "C".
Rotate the screw "C" clockwise to reduce differential pressure.
If the pressure switch does not work (overpressure), the safety valve automatically
opens when the pressure exceeds its rating.
19
4.3 - ADJUSTMENT OF PRESSURE SWITCH (fig. 4):
Pressure switch adjustment must be carried out by skilled personnel only.
Never set a cut-out pressure level exceeding the pressure value indicated
on the compressor data plate. Refer to pag.53 for the right settings.