ACR Journal

p11 December 2020 | January 2021 NEWS 10 CIAT rises to university challenge A new building at the heart of the University of Leicester campus has been equipped with a high- e ciency CIAT air handling system. The Percy Gee Building is the university’s social and activity hub and home to the Students Union. The new four-storey addition includes a food court, dedicated Informatics Lab, high-tech media centre and a performance studio. Five ClimaCIAT air handling units (AHUs), installed by Enviroduct, provide comfort and fresh air for students and sta…, with integrated heat recovery systems making use of energy that would otherwise be lost from the building for ambient space heating and hot water production. The system includes three ClimaCIAT AirAccess 70 units, one ClimaCIAT AirAccess 10 unit and one ClimaCIAT AirTech 150 unit, all from the company’s flagship AHU range. ClimaCIAT units on site at the University of Leicester BITZER adds R515B refrigerant BITZER has added R515B refrigerant to its equipment specification software, giving contractors the option to choose the low- GWP solution for projects. The refrigerant is an A1-classified, non-flammable alternative to R1234ze(E) and R134a for use in medium temperature applications, such as comfort air conditioning, heat pumps, process air conditioning and process heating. With a GWP of 299, R515B has a global warming potential that is 80% less than that of R134a. R515B is therefore particularly interesting for screw compressor applications for which R134a was being used until now and which cannot be changed to use flammable, low-GWP refrigerants. Screw compressors from BITZER’s CSH series can be used with R515B from software version 6.15.2. R515B is also already included in the manufacturer’s Refrigerant Ruler app. R515B can nowbe usedwith BITZERCSH compressors THE SHAPE OF THINGS TO COME A Grade II-listed wedding and events venue in Norfolk has upgraded to a ground source heat pump installed by renewable heating expert Finn Geotherm. Located just outside Norwich, the eight-sided Octagon Barn was originally built as a non-conformist Methodist meeting chapel in the 1680s. Heating it was a challenge – the single skin walls, 5,000sq ft open space and 50ft high vaulted ceiling made distributing and retaining heat di cult and expensive. Having previously completed an installation at another commercial o ce on the site, Finn Geotherm specified and installed a Lämpöässä T120 ground source heat pump with 3000 litre thermal store for the barn. 6km of ground loop was laid via 16 loops in the field, with the pipes running back to the barn underneath the car park. A Lämpöässä T120 ground source heat pumpwith 3000 litre thermal storewas installed by FinnGeotherm news.indd 10 03/12/2020 11:50

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