Section 5
OPERATION
43
5.1 GENERAL
While Sullair has built into this Vacuum System a
comprehensive array of controls and gauges to
assure you that it is operating properly, you will
want to recognize and interpret the readings which
will call for service or indicate the beginning of a
malfunction. Before starting your Sullair Vacuum
System, read this section thoroughly and familiarize
yourself with the controls and indicators - their pur-
pose, location and use.
5.2 PURPOSE OF CONTROLS
CONTROL OR INDICATOR PURPOSE
START PUSHBUTTON Depress to turn the Vacuum System ON.
STOP PUSHBUTTON Depress to turn the Vacuum System OFF.
HOURMETER Records cumulative hours of Vacuum System
operation; useful for planning and logging service
schedules.
SYSTEM VACUUM GAUGE Continually monitors system vacuum.
INLET VACUUM GAUGE
Continually monitors unit's inlet vacuum. Along
with the system vacuum gauge, indicates air filter
condition for maintenance purposes.
DISCHARGE TEMPERATURE GAUGE
Monitors temperature of vacuum unit gas/fluid
discharge. For both air and water-cooled Vacuum
Systems, normal reading is approximately 180ºF
(82ºC).
LOW FLUID PRESSURE SWITCH
Shuts the machine down when the fluid pressure
is too low. This switch is set at 10 psig (69kPa).
RUPTURE DISK
Relieves the sump pressure if the pressure is too
high. Relieves at 15 psig (103kPa).
FLUID FILTER MAINTENANCE GAUGE
Indicates when a filter element change is
required.
SEPARATOR MAINTENANCE GAUGE
Indicates when separator element change is
required.
FLUID LEVEL SIGHT GLASS
Indicates fluid level in the sump. Proper level is
not to fall below the center of the sight glass.
Check level when machine is shut down. DO
NOT OVERFILL.
FLUID RETURN SIGHT GLASS(ES)
Used to indicate fluid flow in the return line(s).
When the Vacuum System runs at full load, fluid
flow should be visible. There may be little or no
flow when the Vacuum System is running
unloaded, but a sluggish flow at full load indicates
a need to clean the return line strainer(s) or ori-
fice(s).
Continued on page 44
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