General; Purpose Of Controls - Sullair 10B Series Operator's Manual

5.1 GENERAL

While Sullair has built into this compressor a com-
prehensive array of controls and indicators to as-
sure you that it is operating properly, you will want
to recognize and interpret the reading which will

5.2 PURPOSE OF CONTROLS

CONTROL OR INDICATOR
START PUSHBUTTON
STOP PUSHBUTTON
HOURMETER
LINE PRESSURE GAUGE
SUMP PRESSURE GAUGE
FLUID TEMPERATURE GAUGE
FLUID FILTER MAINTENANCE GAUGE
SEPARATOR MAINTENANCE GAUGE
AIR FILTER MAINTENANCE INDICATOR
FLUID LEVEL SIGHT GLASS
SEPARATOR RETURN LINE SIGHT GLASS
COOLER BYPASS VALVE
(air---cooled only)
MINIMUM PRESSURE/CHECK VALVE
DISCHARGE TEMPERATURE SWITCH
call for service or indicate the beginning of a mal-
function. Before starting your Sullair compressor,
read this section thoroughly and familiarize your-
self with the controls and indicators --- their pur-
pose, location and use.
PURPOSE
Depress to turn the compressor ON.
Depress to turn the compressor OFF.
Records cumulative hours of compressor operation;
useful for planning and logging service schedules.
Continually monitors service line air pressure. (Lo-
cated on the optional auxiliary air tank if supplied).
Continually monitors receiver/sump pressure at vari-
ous load and/or unloaded conditions.
Monitors temperature of fluid in the sump. for air---
cooled and water---cooled compressors, normal
reading is approximately 170_F (77_C ) with a 70_F
(21_C) ambient temperature.
Indicates when a filter element change is required.
Indicates when separator element change is re-
quired.
Shows red when air filter element servicing is re-
quired. This indicator must be manually reset after
servicing filter.
Indicates fluid level in the sump. Proper level is not to
fall below the center of the sight glass. Check level
when compressor is shut down. DO NOT OVERFILL.
Used to indicate fluid flow in the return line. When the
compressor is running at full load, fluid flow should be
visible in this sight glass. There may be little or no flow
when the compressor is running unloaded, but a
sluggish flow at full load indicates a need to clean the
return line strainer.
Regulates flow of fluid to and around the cooler.
Designed to maintain a minimum operating
temperature of 170_F (77_C); used for fast
warm---up on start ---up.
Maintains minimum of 50 PSIG (345kPa) in the com-
pressor sump. Valve piston restricts receiver air dis-
charge from receiver/sump when pressure falls to 50
PSIG (345kPa). Also incorporated in this valve is a ter-
minal check valve which prevents line pressure back-
flow into the sump during unload conditions and after
shutdown.
Shuts the compressor down when the discharge tem-
perature exceeds 240_F (116_C).
Section 5
OPERATION
21