Alarms
1. Alarms display and Resetting
A fault on a unit will be shown through the user interface or through 2 digital outputs, one for each refrigerant circuit.
The alarms are divided into 3 categories:
-Warning. Shows that something is wrong on the unit but unit can be kept in operation. A message is displayed on the user interface screen. These messages are not recorded in the history list.
-Fault with automatic reset: when the cause of the fault disappears, the fault is cancelled and unit operation will return to normal. The messages displayed on the user interface screen disappear but are recorded in the history list of faults. The fault is relayed through the digital output if I/O parameter is set to show a circuit fault.
-Fault with manual reset: when the cause of the fault disappears, a manual reset is required to restart the unit. The messages displayed on the user interface screen disappear and are recorded in the history list of faults. The fault is relayed through the digital output if I/O parameter is set to show a circuit fault.
Should an alarm occur, 
will be lit in red.
Pressing 
once will display the alarm message (refer to table 4 for possible messages)
When alarm message is displayed
press 
to reset the default if necessary.
2. Alarms history
200 events can be recorded by TRACER CH532. Each record will give the fault description, the reset type, the order and the day and time of occurrence.
Maintaining 
for 5 seconds give will access to the last event recorded.
Then using 
allows the user to view the complete history. (refer to table 5 for possible messages)
22 |