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PLC/Human Machine Interface

PLC with touchscreen HMI is standard on TX Series Central Chillers. The most sophisticated and easy-to-operate HMI touchscreens provide more information and come standard with many powerful features for unique, customized equipment control. Many standard and custom screen options are available. Please contact Thermal Care for more information.

Standard chiller report screens include:
Real-time system status with instant feedback
Compressor status and running hours
Chiller capacity profile with compressor index
Automatic lead/lag and run times
Chill water temperatures:
-Set point
-Process water supply and return
-Condenser water supply and return
 
PLC/HMI touchscreen display features include:
Eight possible text font sizes
Up to 256 possible colors
Wide viewing angle
7.7 inch screen standard on chillers
10.4 inch screen standard on systems or optional on chillers
Password protection
 
Alarms include:
Low process water flow
High oil temperature
High discharge temperature
Low compressor pressure
High water temperature
Refrigerant high/low pressure
Compressor motor winding thermostat
Thermocouple fault
Compressor fault
PLC low battery
100-line alarm history storage
Low oil pressure differential
Phase monitoring
 
Optional PLC/HMI capabilities include:
Water pump run time readouts
Water flow and pressure readouts
Remote interface up to 150 feet away
Event log and tracking
Modem or Ethernet network communication
Exporting data to spreadsheets, databases or word processing software
Ability to daisy chain multiple HMIs