General; Purpose Of Controls- Electro-Mechanical - Sullair LS-25 Operator's Manual And Parts List

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 call

5.2 PURPOSE OF CONTROLS- ELECTRO-MECHANICAL

CONTROL OR INDICATOR
START "I" PAD
STOP "O" PAD
AUTO " " PAD
HAND/AUTO SELECTOR SWITCH
HOURMETER
LINE PRESSURE GAUGE
SUMP PRESSURE GAUGE
DISCHARGE TEMPERATURE GAUGE
FLUID FILTER MAINTENANCE GAUGE
AIR FILTER MAINTENANCE GAUGE
SEPARATOR MAINTENANCE GAUGE
POWER ON ( ) LED
"ON" (RED) LED
-SOLID (CONTINUOUS) RED LED
-BLINKING RED LED
for service or indicate the beginning of a malfunc-
tion. Before starting your Sullair compressor, read
this section thoroughly and familiarize yourself with
the controls and indicators - their purpose, location
and use.
PURPOSE
Depress to turn the compressor ON.
Depress to turn the compressor OFF.
To select between continuous (HAND) operation and auto-
matic stop/start (AUTO) operation. Shuts off compressor au-
tomatically after the compressor runts unloaded for a speci-
fied time (ranging from 3-60 minutes[T1]). Restarts compres-
sor when the pressure switch closes to the load setting. Dual
control is enabled by pressing the "AUTO" pad.
Selects between continuous or AUTO modes of operation.
Records accumulative hours of compressor operation; useful
for planning and logging service schedules.
Continually monitors service line air pressure. Located on dry
side of receiver downstream from check valve.
Continually monitors receiver/sump pressure at various load
and/or unloaded conditions.
Monitors temperature of the air leaving the compressor unit.
For both air and water-cooled compressors, the normal read-
ing should be approximately 180°F to 205°F (82°C to 96°C)
depending on the ambient temperature.
Indicates when a fluid filter element change is required. The
pointer will move into the red zone when the pressure drop
through the filter is excessive.
Indicates when the air filter element change is required. The
pointer will move into the red zone when the pressure drop
through the filter is excessive.
Indicates when separator element change is required. The
pointer will move into the red zone when pressure drop
through the separator is excessive.
Indicates when the starter is receiving power.
Indicates when compressor is in operation.
Indicates that machine is running.
Indicates that machine is on 'standby' mode, and may start
Section 5
OPERATION
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