5. Operation
y y
Contrast
Adjusts the display screen contrast (0~5). The default value is 2.
y y
Buzzer
Sets the buzzer on/off and issues an audible alarm to remind the user of any alarm events. The default is ON.
y y
Language
Set the display language. Select a language and press
y y
User PW
To change the current user's password, enter four digits.
y y
Unit
Sets the temperature unit. The default is (°C).
y y
Delay On
Shows the time difference between setting the startup in automatic mode and the unit's actual operation. The cooling unit will start up
in the seconds you have designated.
y y
Baud Rate
Sets the on-line speed based on the Modbus protocol. Options include 9600, 19200, 38400 and 57600. The default value is 9600.
y y
Total Alarm
Decides what event can trigger the output dry contact 1. Refer to the following:
1. All: Any alarm and fault event can trigger it.
2. Fault: Only fault events can trigger it.
Alarm events
1. Filters are clogged
2. Abnormal internal communication
3. High and low air supply/return temperature and humidity
4. High and low chilled water inlet/outlet temperature
Fault events
1. Emergency stop/remote emergency stop
2. Condensed water overflow
3. Leakage alarm/leakage open-circuit alarm
4. Fire
5. Smoke
6. Abnormal air supply/return temperature and humidity sensor
to confirm. The default is English (EN).
5. High and low chilled water flow
6. High and low remote temperature and humidity
7. Maintenance overtime
7. Abnormal remote sensor
8. Abnormal chilled water inlet/outlet temperature sensor
9. Abnormal chilled water flow meter
10. Abnormal fan
11. Abnormal three-way ball valve
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