AEC Glacier Series Air and Water Cooler Portable Chillers - Manual (Page 50)

Glacier Series Portable Chillers Page 49
6 Operation
6-1 Introduction
Standard Glacier chillers use a microprocessor based PID 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.
NXGA & NXGW Control Operation Range
Standard Models 20°F to 65°F
Low Temp Models 0°F to 30°F
6-2 LED Indicators
PV or Process Value Numeric LED
During normal operation, this large red LED on the control displays the actual process
temperature at the To Process thermocouple. It also lists parameters during setup and error
messages if an error occurs.
SV or Set Value Numeric LED
During normal operation, this green LED on the control displays the process set point you want
the chiller to maintain. It also displays parameter and pre-set function values during setup.
Figure 22
Microprocessor Control