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Benchmark 2500DF-3000DF Installation, Operation & Maintenance Manual
CHAPTER 5 – MODE OF OPERATION
While it is possible to change other temperature-related functions for combination mode, these functions
are preset to their factory default values. These default settings work well in most applications. It is
suggested that AERCO be contacted prior to changing settings other than the unit's setpoint. For a
complete listing of temperature related function defaults, see Appendix E.
To set the unit to the manual mode, press the AUTO/MAN switch. The MANUAL LED will light.
To set the unit back to the auto mode, press the AUTO/MAN switch. The MANUAL LED will go off and
the REMOTE LED will light.
When the boiler is switched to ACS control, the ACS controls the valve position. There are no setup
requirements to the boiler(s) in this mode.
OMM-0099_0A
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Page 75 of 234
GF-145
Ph.: 800-526-0288
PR1: 05/21/2014
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