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"Excalibur have installed Liquid Pressure Amplification and Inverters to 2 off 1300 kw data centre, process chillers. The cooling system is critical to this business, Excaliburs’ professional approach provided the customer with the confidence to undertake the project. Their condition monitoring also raised several maintenance issues, which we were able to resolve during the contract. Initial monitoring is demonstrating a 46% reduction in electrical consumption."

"Following successful trials Excalibur have undertaken the installation of Liquid Pressure Amplification, inverter control of condenser fans and adiabatic condenser cooling to all of the large packaged chillers at Heathrow Airport, this project was completed successfully despite the difficulties of working airside.

As a result of the improvements in chiller efficiency, Excalibur have successfully completed similar projects at Stansted, Edinburgh and Glasgow Airports. "

"Excalibur completed energy efficiency projects at 3 of our Leisure Centres, the installation of boiler and inverter control (to pumps and fans) showed a very impressive reduction in both gas and electricity consumption on all 3 sites.

The opportunities were identified by Excalibur, who then completed the work to a very high standard, and have continued to provide support as required."

"Excalibur installed LPA and inverter control to our Bitzer screw pack, the work was completed to a very high standard with minimum effect to production. Monitoring over the first 12 month period showed a reduction in power consumption of 38%. Several evaporators which had been starved of refrigerant now achieve temperatures where previously they struggled.
There have been no reliability issues and we are benefiting from a system which is not only energy efficient but also provides  improved refrigeration performance"

Excalibur have completed energy efficiency projects in many of our hotels, one of our major concerns is any disruption to the operation of the hotel and our customers.

The work was completed to a very high standard, and we were always kept informed of progress.

We are achieving the level of energy reduction projected with no adverse affect on the business and would have no hesitation in using Excalibur again.

I would like to take this opportunity to thank you and all others from within Excalibur involved with the development of this project, from my initial involvement through to today's handover meeting. All of which has run extremely well, with any issues uncovered being easily resolved with the proactive nature of you and your site team, which are a credit to Excalibur.

Hopefully, in the not to distant future I will have the opportunity to call upon Excalibur’s assistance and experience again on another LPA Project. Though in between times I would thank you again for your support and guidance.

I have employed Excalibur to improve the energy efficiency of 8 Dunham Bush and Hitachi process chillers on two newspaper print sites, both systems showed a reduction in power consumption in excess of 35%. The installations were undertaken 6 years ago and have operated reliably since their commissioning. I would have no hesitation in working with Excalibur again.

"Excalibur have been undertaking energy efficiency projects for British Telecom for over 10 years, as a company they have always been professional and diligent. Their proactive approach has also identified several areas where we have been able to improve the integrity of our equipment."

"Throughout the LPA project at Manchester Airport Excalibur provided a thorough and professional service ensuring the project was delivered on time with minimal operational disruption. The project delivered savings as quoted, the refrigerant change helped re-life ageing equipment and was seen as a great success, so much so that we are about to embark upon a second phase during 2010"

Before installation Excalibur monitored all three refrigeration systems to establish their condition

The work was carefully planned and shut-down periods were kept to a minimum.

Following the modifications, the system now operates more efficiently at much lower head pressure.