Product Manual

ShopTek™ ST45, ST55, ST75 (U.S.A. & Mexico) Operation & Maintenance Manual 5: Operation
88292021-240 R01
Subject to EAR, ECCN EAR99 and related export control restrictions. 31
pressor from restarting. The fault mode may be cleared
by pressing the Reset button on the controller.
5.8 Phase failure/reversal
The electronic controller includes a phase failure/reversal
monitor to protect against reverse motor rotation. The
monitor can detect an under voltage condition, the
absence of a supply phase, or the incorrect phase
sequence of the supply power. If the monitor detects any
of these conditions, the electronic controller will shut
down the compressor. A licensed electrician must exam-
ine the compressor to resolve the problem.
5.9 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. You
can use the electronic controller to adjust the run-on time,
but ensure that the compressor does not exceed six shut
downs per hour. Contact your Sullair representative
before making any adjustments, since an incorrect set-
ting 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.