Product Manual

5: Operation ShopTek™ ST45, ST55, ST75 (U.S.A. & Mexico) Operation & Maintenance Manual
88292021-240 R01
30 Subject to EAR, ECCN EAR99 and related export control restrictions.
5.3 Starting the compressor
If the compressor has been out of service for more than
60 days or you have installed the compressor in a new
location, follow the steps under Section 5.2: Starting the
compressor for the first time instead of this procedure.
1. Open the isolation gate valve if it is installed.
2. Press the Start button.
5.4 Shutting down the compressor
1. Press the Stop button.
• The compressor will begin a delayed stop
sequence and will stop automatically after
the delayed stop sequence is complete.
• During the delayed stop sequence
pressing the Start button will not restart
the compressor. You can only restart
the compressor after the delayed stop
sequence is complete.
5.5 Electronic controller
The EC2000 Controller Operation Manual describes the
layout and explains the features of the ShopTek™ elec-
tronic controller.
5.6 High temperature shutdown
The electronic controller will shut down the compressor if
the fluid temperature sensor reports a separator tank
temperature above 113°C (235°F). This shutdown tem-
perature is set at the factory and should not be changed.
A high temperature shutdown places the electronic con-
troller into fault mode, which prevents the compressor
from restarting. After the compressor cools down, the
fault mode may be cleared by pressing the Reset button
on the controller.
5.7 Motor overload protection
Both the compressor main drive motor and the fan motor
have overload protection. If either motor draws too much
current, its overload protection will shut down the com-
pressor.
A motor overload protection shutdown places the elec-
tronic controller into fault mode, which prevents the com-
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.
WARNING
For safety reasons, the electronic controller
pressure settings should never be adjusted to
anything other than the required settings for the
serial plate nominal operating pressure. If you
require different pressure settings, contact your
Sullair representative.
Adjusting the nominal operating pressure above
the maximum working pressure of your com-
pressor as indicated on the serial number plate
may damage your compressor and void your
warranty.
CAUTION
In the event of a high operating temperature
shutdown fault, do not attempt to restart the
compressor without first finding and correcting
the underlying cause. Contact your Sullair repre-
sentative for assistance.