Sullair E900H User Manual page 46

E900H USER MANUAL
UNLOAD PRESSURE SETTING
1. Start compressor with service valve closed
or slightly open.
2. Observe the pressure at which the contacts
open and machine unloads.
3. Turn the range adjustment screw until
desired unload pressure setting is achieved.
46
DIFFERENTIAL SETTING
1. Unload compressor and allow receiver pres-
sure to reach its minimum.
2. Open service valve and observe the pres-
sure at which the pressure switch contacts
close and the compressor loads.
3. Turn the differential adjustment screw until
the desired load pressure and differential is
achieved.
02250203-986 R01
SECTION 6