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4
CHILLER CONTROLS
4.1
CONTROL AND MONITORING ELEMENTS
Main Power Switch
Status LED
Warning/Alarm LED
External controller display
Webserver controller display
The following elements allow controlling the chiller and monitoring its status:
1. Status LED:
It blinks when the unit is turned Off and is waiting for an On signal. It is lit steadily when the
unit is turned On.
2. Warning/Alarm LED:
It blinks when a Warning is active, the chiller is still running. It is lit steadily when an
Alarm is active; either the refrigerant circuit or the complete unit is stopped. See point 6 for troubleshooting.
3. Main power switch:
Located on the right side of the chiller. It connects and disconnects the Ultracool unit
from the power supply.
4. Controller display:
It shows all information on the operation of the chiller and allows controlling it. It can be
accessed either from the external display connected to the chiller or from any computer connected to the
same Ethernet network as the chiller by accessing its webserver from a web browser.
To access the webserver, the chiller must be connected to the network with an Ethernet cable, see point 2.6.
