Sterling GP20-50 Series Reference Manual

Safety Concerns

Quickstart Installation Checklist

(Refer to main manual for complete installation instructions).
1. Connect 3-phase power based on nameplate data.
2. Apply power to chiller for at least 24 hours prior to start up.
3. Install properly sized plumbing between portable chiller and primary
processing equipment (supply and return).
4. Ensure proper pump rotation. (The pump motor should be turning
clockwise while looking at the motor fan end).

Unit Operation

(Refer to main manual and controller manual for complete operating
instructions).

Start Up

1. Add fluid to the reservoir tank until the level is near the top of the tank.
2. Turn power switch to ON position.
3. Depress the "On|Off"
4. Maintain the minimum tank level based on size of tank. Handheld display will notify you about tank level.
5. To change the setpoint, press the menu
and press enter. Press the enter
down button to increment or decrement the value. Press enter
button twice to return to the main status screen.

Shut Down

1. Depress the "On|Off"
2. Maintain power switch in the ON position.

Standard Display

Sterling, Inc.
2900 S. 160 th Street • New Berlin, WI 53151 USA
Tel. 262.641.8610 • Fax 262.641.8653
button to start the pump.
button, press the up
button to move the cursor to the CHILLED FLUID SP line. Press the up
button to shut down chiller.
GP20-50 Series Portable Chillers
Reference Manual (PN: 882.93092.01) for
Complete Operation and Installation Instructions
(Available online at www.sterlco.com)
or down
to accept the value. Press the escape
arrow button to highlight SETTINGS
Part No: 882.93615.06
Bulletin No: HC3-300.2
or