AC Chiller Control Upgrade

Generator Control Unit

P & S Automation have designed and successfully commissioned several AC Control systems, the latest being an upgrade for Carrier 30HT, HQ Water Cooled twin circuit, reciprocating liquid chillers.

Using modern Programmable Logic Controller (PLC) and Touchscreen Operator Interface (HMI) we have designed a control system which can be retrofitted to chillers which can still be mechanically maintained.

The original Electronic Expansion Valves (EXV) can be retained as this has the potential to provide fine control of the Superheat temperature.

When commissioned the new controls proved to enable the chiller to run with far greater efficiency cutting down the number of compressors normally in operation from 8 to 5.

The system can be set up for any refrigeration gas.

To download the full product specification in PDF format please click here.