ACR Journal

CMYK / .ai CMYK / .ai CMYK / .ai 17 AIR CONDITIONING acrjournal.uk introduction is reduced and the AHU operates more air recirculation. When the system starts, the AHU is in full recirculation mode reaching a room temperature of 20°C, with fresh air then mixed depending on CO2 levels. Effective and efficient With 350 people in the club the system is in full fresh air mode. The rooftop Fujitsu Airstage V-III heat pump, twinned with four Fujitsu DX EEV kits for AHU integration, is capable of raising the temperature from -5°C in winter to 16°C and can provide cooling without pumping large quantities of cold air into the building when fully occupied. Fruit is surrounded by residential buildings and one concern was music a‹ecting nearby homes through the ductwork, with attenuation used to reduce the impact. Consultant Rob Smelt, Director of BREng in Hull, said that the client wanted to create an attractive venue in a key area of the city, and deliver an e‹ective and e’cient solution for climate control. He added: “The original project design would have used a lot of mechanical plant when space is tight and the noise element crucial. It also o‹ered no cooling and was non-renewable. “We designed a cost-e‹ective solution providing ventilation with heating and cooling from a renewable source. It is controlled by both temperature and CO2, maximising e’ciency and comfort when the venue is used as a night club or as exhibition hall during the day.” Outstanding support Andrew Gill, Regional Sales Manager at CDL, said: “The Fujitsu equipment is fantastic. I believe it is the only system on the market able to rejoin refrigerant pipework after expansion to reduce the number of DX coil paths. “It was selected because it can operate as a DX method of heating at -5°C ambient with an air on coil temperature of 3°C at a high COP (3.8 at -5°C ambient). “We also had outstanding support from Fujitsu from the design stage through to commissioning.” Nick Wilks, National Distribution Sales Manager at Fujitsu, said: “CDL has been a Fujitsu customer for seven years and has great technical capabilities in terms of design and specification, as well as being VRF and project focused. “In terms of the installation, our DX systems are really simple to integrate with third-party equipment, so it’s good to see that making a di‹erence.’ Equipment • Fujitsu Modular Airstage V-III Heat Pump • 4x Fujitsu DX EEV kits • 0-10V BMS connection to Fujitsu equipment www.fujitsu-general.com/uk/ The installation layout on the rooftop at Fruit in Hull AHUs integrated easily with Fujitsu DX communication kits