
ST18 & ST22 (U.S.A. & Mexico) Operation & Maintenance Manual
5: Operation
88291013-137 R05
Subject to EAR, ECCN EAR99 and related export control restrictions.
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pressor from restarting. The fault mode may be cleared
by pressing the Reset button on the controller.
5.8
Run-on timer
Keeping with Sullair’s philosophy of minimizing energy
consumption, the electronic controller has a run-on timer.
The run-on timer monitors how long the compressor has
run without compressing air. If this length of time is
greater than the pre-set run-on time, the compressor will
enter standby mode. The compressor will automatically
restart if a fall in system pressure is registered.
The factory setting of the run-on time is 15 minutes. Con-
tact your Sullair representative before making any adjust-
ments, since an incorrect setting may result in damage to
the compressor.
CAUTION
In the event of a motor overload protection shut-
down fault, do not attempt to restart the com-
pressor without first finding and correcting the
underlying cause that triggered the motor over-
load protection.
You can contact your Sullair representative for
assistance in finding and correcting the underly-
ing cause of a motor overload protection shut-
down condition.
WARNING
Never assume that the compressor has com-
pletely stopped, even if the compressor does not
appear to be running. The compressor may be in
standby mode and restart at any time. Do not
remove any covers or panels or attempt any ser-
vice without first isolating the compressor from
the mains power supply and tagging it.