Technical information

Portable Chillers UGH024/1103
6-24 TROUBLESHOOTING
The alarm history screens display the last 10 alarms that have
occurred. They are listed in the order of newest to oldest.
Scroll through the alarm history screens by pressing the scroll
arrows. The Next arrow takes you back in time. The alarm
screen displays the alarm number (1-10) and an alarm descrip-
tion. Pressing the Select Option arrows allows the operator to
view the pressures and temperatures at time of the alarm.
PLC CONTROL
ALARM
HISTORY
SCREENS
1 Hi Dis Press - Compl
PRESS TEMP
Press arrows to
view pressure
and temperature
For dual compressor units, the suction and discharge pressures
at time of alarm of the second compressor are also captured.
These can be viewed by pressing the scroll arrows.
When Temp is selected from the alarm screen, the To Process
Temperature at the time of the alarm displays. Pressing the
RET select option key returns to the alarm.
Pressing the Next arrow displays the From Process
Temperature at the time of the alarm. Scroll through the four
temperature values by pressing the Prev and Next arrows.
When PRESS is selected discharge pressure information at the
time of the alarm displays.
Discharge Press RET
351 PSIG
Press arrow to
return to previous
alarm screen
Pressing the Escape key returns to the main menu. Pressing
the Next arrow displays the suction pressure at time of the
alarm.
Suction Pressure RET
57 PSIG
Press arrow to
return to previous
alarm screen
To Process RET
Temperature 51 F
Press arrow to
return to previous
alarm screen