ACR Journal

Tributes paid to Dr Guy Hundy The Institute of Refrigeration (IOR) has paid tribute to past president Dr Guy Hundy, who died in January aged 79. He began his career with a technical apprenticeship at J&E Hall and later worked in technical roles in Prestcold, Copeland and Emerson. Throughout his 50-year career, he was instrumental in the development of scroll compressor technology and heat pump efficiency. Dr Hundy served as president of the IOR from 2004-07 and also shared his knowledge by writing technical papers for the IOR and International Institute of Refrigeration. He was awarded the IOR Lightfoot Medal for best paper five times and was also active in FETA, chairing technical committees. In the later part of his career he was editor of the 5th edition of the textbook, Refrigeration and Air Conditioning, from which he donated royalties of over £5,000 to the IOR Presidents’ Fund for Education. He was also responsible for the development of the IOR’s website for schools (www.fantasticfridges.com ) . A celebration of his life is planned to take place in the summer. 07 NEWS Wozair completes NSV & AC purchase HVAC equipment manufacturer Wozair Energy Holdings Limited has completed its acquisition of North Sea Ventilation and Air Conditioning Limited (NSV & AC). The purchase follows the majority acquisition of Thermoplant Offshore Services Limited (TOSL) in 2019, and Wozair says it means that the company and its partners can together provide an unrivalled service of specialist ventilation equipment to the energy and marine industries. Two of the directors of TOSL, Tony Williams and Kevin Atkinson, assisted in the restructure and continue to work in the day-to-day running of the business, as well as organising staff, services and procurement activities after the acquisition. The actual asset purchase was completed with the help of the two main shareholders of Wozair, Simon Collins and Paul Azzopardi. NSV & AC has re-employed around 20 staff and successfully turned £1.5 million of work-in- progress into complete projects for customers. https://wozair.com/ CMYK / .ai CMYK / .ai CMYK / .ai acrjournal.uk City Multi delivers hotel upgrade A 4-star hotel in Sheffield is benefiting from a new energy efficient air conditioning system which provides controllable comfort and air filtration for guests. During a recent refurbishment at the Leopold Hotel, Sheffield-based Greenhill Air Conditioning installed seven new City Multi R2 VRF outdoor units, which use heat recovery to balance energy use across the hotel. Greenhill is a Mitsubishi Electric Diamond Quality Partner, meaning it is able to offer the Prem Hotel Group a 10-year warranty. Consultants Shearstone Mechanical worked with distributor Kooltech to establish the best solution for the hotel using existing refrigerant pipework. The new systems are now keeping hotel rooms at the right temperature for guests, and also bring advanced control for hotel staff, while helping to minimise disruption during routine maintenance schedules. PEFY-P VMS slimline ducted indoor units were installed in each of the 90 bedrooms, with each indoor unit linking back to a Branch Controller Box that sends heating or cooling to each room as required by guests. These boxes were factory-fitted with Kooltech’s K-con port isolation valves, making future service and maintenance to individual rooms easy without the need to shut down the complete system. “Our engineers also installed Mitsubishi Electric’s unique Plasma Quad technology to the indoor fan coils in each bedroom to improve guest comfort and give reassurance on the back of the Covid pandemic,” said Ian Hunter, director at Greenhill AC. This award-winning technology improves air quality by neutralising irritants such as pollen, bacteria, dust and viruses, and microscopic particles down to PM2.5, as well as inhibiting SARS-CoV-2.