UGH017/0500
Series 1 Portable Chillers, PLC Control
O
PERATION
4-7
Verify that the readings each screen displays are the ones
you want. You cannot change the readings of the screens
from the Status screens. You can change to status of:
●
Setpoint temperature
●
Percent Ethylene Glycol by volume
by going to the Setup screens. You can not change the
other readings; they are read-only screens, reporting envi-
ronmental conditions.
Press the Escape/Previous button at any time
to return to the main screen.
Ref Suction Pressure
70 PSIG
Ref Discharge Pressure
250 PSIG
●
Refrigerant Discharge pressure -
View the status of
the refrigerant discharge pressure in PSIG. Typical dis-
charge pressure is between 190 PSIG and 325 PSIG.
% E.G. BY VOL
0
LOW TEMP CUTOUT
40 F
V
IEWING
C
HILLER
S
TATUS
CONT
’
D
●
Percent Ethylene Glycol by Volume and Low tem-
perature Cutout -
displays the percentage of ethylene
glycol or propylene glycol solution (by volume) in the
chiller in degrees Fahrenheit. Changing the percent glycol
automatically changes the low temperature cutout.
●
Refrigerant suction pressure -
shows the status of the
refrigerant suction pressure in PSIG. NOTE: Typical
refrigerant suction pressure is between 55 PSIG and 95
PSIG.
3
