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PS QuarterHorse Series Chillers Page 19
5 Microprocessor Control
5-1 Introduction
Standard PS Series chillers use a microprocessor based controller. The controller is a
modular, self-contained unit that can slide from its mounting housing. It is factory set
and adjusted; no field adjustment to the internal controls is necessary.
5-2 Setting the Process Water Temperature
• Press and hold the star key.
• While holding down the star key, press the arrow up or arrow down key to
raise or lower the process water temperature set point.
5-3 Power Switch
POWER
This switch energizes the control circuit; it also turns off the chiller.