Section 4
53
1600C LP USER MANUAL
OPERATION
4.1
GENERAL
While Sullair has built into this compressor a
comprehensive array of controls and indicators 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 compressor, read this
section thoroughly and familiarize yourself with the
controls and indicators—their purpose, location and
use.
4.2
PURPOSE OF CONTROLS
CONTROL OR INDICATOR
PURPOSE
OFF/ON/START Switch
The engine switch is used to both energize the compressor’s electrical system
and engage the engine/starter. It also has a built-in anti-restart device that
protects the starter from engaging while the engine is running. The switch must
be turned back to the “OFF” position before the engine can be re-started.
Voltmeter
Monitors the condition of the batteries and the charging circuit. The normal
reading is 24 to 48 volts.
Air Pressure Gauge
Continually monitors the pressure inside the receiver tank at various load and
unload conditions.
Engine Coolant Temperature
Gauge
Monitors the temperature of the engine coolant. The normal operating
temperature should read approximately 160
°
F to 210
°
F (71
°
C to 99
°
C).
Compass Controller
Depicts system related diagnostics. Can be used for system performance
monitoring.
Compressor Discharge
Temperature Gauge
Monitors the temperature of the air/fluid mixture leaving the compressor unit. The
normal reading should be approximately 210
°
F to 230
°
F (99
°
C to 110
°
C).
System Pressure Sensor
Prevents starter engagement when the air system is pressurized.
Fluid Level Sight Glass
Monitors the fluid level in the receiver tank. Proper level is always visible in the
sight glass. Check the level when the compressor is shutdown.
Receiver Tank Temperature Switch
Opens the electrical circuit to shut down the compressor when the receiver tank
temperature reaches 250
°
F (121
°
C).
Reducing Regulator Valve
Provides regulated air pressure to the inlet valve.
Control Regulating Valve
Provides an air signal to the inlet valve and engine speed controller to close the
inlet valve and reduce engine speed to control air delivery according to demand.
NOTE
When restarting the compressor, the Compass
Controller will not allow restart until system
pressure falls below 10 psig (0.7 bar) or less.
More than 10 psig (0.7 bar) can put extra load
on the starter.
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