This project encompassed our whole range of services. The overall project was completed via 4 smaller jobs. The first part of the project was to replace highly un-reliable compressors. The next was to retrofit a Trend Control System after the Dunham Bush Controller had failed. We then carried out an R22 refrigerant Conversion to R422D. As part of these works we also retrofitted Electronic Expansion Valves. Effectively re-using the Evaporator & Condenser Heat Exchangers we have prolonged the Chillers life for another 10 Years.