Technical data

184
Control features (Pro-Dialog Plus/Pro-Dialog touch screen)
• An advanced numeric control system, combining complex intelligence with
great operating simplicity.
• Constantly monitors all machines parameters and safety devices and precisely
manages the operation of compressors, fans and water pump.
• PID control algorithm anticipates load variations, guarantees leaving water
temperature stability and prevents unnecessary compressor cycling.
• The long stroke electronic expansion valves (EXV) and PID superheat control,
together with the head pressure control algorithm, improve energy eciency
at part load conditions and optimise unit operation.
• Automatic reset of the chilled-water temperature set point for optimised
power consumption.
• Several capacity loading possibilities for improved start-up at low outdoor
temperature and use of one refrigerant circuit as back-up.
• Provides preventive protection and enhanced unit reliability.
• Equalisation of operating time and number of compressor start-ups.
• Monitors all safety parameters. Fault history function and 80 fault code for
immediate fault location.
• Parallel control of two units as standard.
• Extensive remote control capabilities allow integration into building
management systems.
• RS-485 serial port for connection to the Carrier Comfort Network and any
other monitoring system (through gateways).
Operator interfaces
• Clear and easy to use operator
interfaces
• Pro-Dialog Plus interface
Organisation of information
around 10 menus directly
accessible through hard keys
• Pro-Dialog touch screen
interface
Organisation of information
around 12 menus directly
accessible through soft keys
and possibility to install the
touch screen remotely from the
chiller
• Pro-Dialog+ screen interface
Pro-Dialog
PRO-DIALOG CONTROL
Pro-Dialog touch screen interface - optional
according to range (30XA, 30XW)
Pro-Dialog Plus interface
Controls