PCA Series Chillers
Page 27
Figure 12: Typical PCA Series E5CK Microprocessor Controller
PV
SV
OUT1
OUT2 MANU STOP RMT
AT
SUB1
AT
E5CK
OMRON
OUT2 LED
The orange
OUT2
energizes whenever the process temperature is two degrees (2
°
F/ºC)
or more above the To Process set point. The compressor then comes on and runs until
the temperature at the To Process thermocouple is two degrees (2
°
F/ºC) below the set
point.
This +2°F/ºC control set point is factory-set for proper compressor operation. Changing
it is
not recommended
without consulting the AEC Service Department.
MANU LED
The orange
MANU
LED does not light because it is not used.
STOP LED
The orange
STOP
LED does not light because it is not used.
