9
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 7 –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 8 – 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. 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 9 – Warning Antifreeze
