Section 5
OPERATION- ELECTRO-MECHANICAL
25
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 for
service or indicate the beginning of a malfunction.
Before starting your Sullair compressor, read this
section thoroughly and familiarize yourself with the
controls and indicators -- their purpose, location and
use.
5.2 PURPOSE OF CONTROLS--STANDARD ELECTRO-MECHANICAL
CONTROL OR INDICATOR
PURPOSE
EMERGENCY STOP SWITCH
Pushing in this switch, found adjacent to the controller,
cuts all AC outputs from the latter and de--energizes
the starter. A fault message (E STOP) is displayed by
the Supervisor until the button is pulled out and the “
O
”
pad is depressed.
START “
I
” PAD
Depress to turn the compressor ON.
STOP “
O
” PAD
Depress to turn the compressor OFF and reset the com-
mon fault circuit.
AUTO “
” PAD
To select between continuos (HAND) operation and au-
tomatic stop/start (AUTO) operation. Shuts off compres-
sor automatically after the compressor runs unloaded for
a specified time (ranging from 3--60 minutes [T1]). Re-
starts compressor when the pressure switch trips to the
reload setting. Dual control is enabled by pressing the
“AUTO” pad.
HOURMETER
Records cumulative hours of compressor operation;
useful for planning and logging service schedules.
LINE PRESSURE GAUGE
Continually monitors service line air pressure. It is lo-
cated on dry side of receiver downstream from check
valve.
SUMP PRESSURE GAUGE
Continually monitors receiver/sump pressure at vari-
ous load and/or unloaded conditions.
DISCHARGE TEMPERATURE GAUGE
Monitors temperature of the air leaving the compressor
unit. For both air and water--cooled compressors, the
normal reading should be approximately 180
_
F to
205
_
F (82
_
C to 96
_
C ).
AIR FILTER RESTRICTION GAUGE
Indicates when the air filter element change is required.
The gauge shows the red zone when drop through the
filter is excessive. The compressor must be running full
load for an accurate indication.
FLUID FILTER MAINTENANCE GAUGE
Indicates when a fluid filter element change is required.
It shows red when the pressure drop through the filter is
excessive.
SEPARATOR MAINTENANCE GAUGE
Indicates when separator element change is required.
Shows red when the pressure drop through the filter is
excessive. The compressor must be running full load
for an accurate indication.
POWER ON (
) LED
Indicates when the starter is receiving power.
ON LED
Indicates when compressor is in operation.
AUTO LED
Indicates when compressor is in auto mode.
Summary of Contents for LS-10 series
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