Chiller Units Training Bench With Industrial Controller

Chiller Units Training Bench With Industrial Controller .

Chiller Units Training Bench with Industrial Controller

Experiments

• Study and understanding of the operation of a chiller unit
• On-off control of the cooled water temperature
• Safety control using the high and low pressure switch and flow switch
• Plant start-up and system monitoring using the incorporated protection and safety devices

Detecting the system operating parameters

• Plotting of the refrigerant cycle on a pressure-enthalpy diagram of the refrigerant gas
• Calculation of thermal balances for the refrigerant and water circuit

Technical Specification

Water circuit including:

• Centrifugal pump
• Air heat exchanger
• Flow switch

Refrigeration circuit equipped with:

• Hermetic compressor with protector
• Forced air condenser
• Water evaporator
• Thermostatic expansion valve
• Dehydrator Filter and sight glass
• Liquid receiver and liquid separator
• Double pressure switch
• Valve for plant vacuum, refrigerant charging and recovery
• High and low pressure gauges

Thermomagnetic ELCB

• Start button
• Emergency stop button

Instruments and control devices including:

• 4x NTC temperature probes
• Water flow sensor
• 2x pressure transducers
• Room temperature sensor with display
• Active positioner
• Freely configurable industrial controller including:
• Software
• 8x universal inputs
• 4x analogue outputs
• 6x digital outputs
• KNX Bus connection
• Plug-in display

Extension module with 4x universal inputs and 4x digital outputs

• PC to controller interface module with RS232 port
• Programming and control software
• Cable for connection to a PC