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Menu 1 - Alarms
Alarms Active
When a critical system fault occurs, the controller
logs the faults to the HMI alarm handler. To silence
this alarm, press the ALARM SILENCE button. If
multiple alarms are active at once, use the DOWN
and UP buttons to view all alarms. All alarms must be
resolved and then reset using the RESET ALARM
button.
Figure 13 –Alarms Active Handler
Note: The above shows there are no alarms; if an alarm condition
were present, it would appear in this window.
Alarms History
Figure 14 – Alarm History
Note: The above shows there are no alarms in history; if an alarm
condition previously existed, it would appear in this window.
Warning Glycol
If the Chiller Setpoint goes below 45°F, the Glycol
Warning Screen will appear as in Figure 15. The
amount of antifreeze will vary depending on the
actual desired operating conditions and should be
enough to provide freeze protection to temperatures
15°F colder than the coldest temperature
anticipated. Use only antifreeze solutions designed
for heat exchanger duty. Do not use automotive
antifreeze due to the potential for fouling that can
occur once its relatively short-lived inhibitors break
down. Verify the proper Glycol solution is used and
acknowledge “OK” the Warning.
Figure 15 – Warning Antifreeze
