ACR Journal

April | May 2020 AIR CONDITIONING 12 450 FCUs and 54 outdoor condensing units form one of the biggest Toshiba VRF projects to date. Landmark installation Volume 6 No.3 It is the scale of the project which makes the name of a recent installation of VRF air conditioning particularly appropriate. Landmark Manchester is one of the largest UK installations of Toshiba VRF equipment, with the recently completed 180,000 sq ft multi-storey oce development cooled and heated by a VRF system in a setting once dominated by chiller solutions. The installation, led by mechanical and electrical contractor Castle Building Services with main contractor Bowmer + Kirkland, includes 450 high-performance Toshiba in-ceiling fan coil units (FCUs). The FCUs are connected to 54 Super Heat Recovery Multi Enhanced (SHRM-e) VRF outdoor condensers with intuitive control provided by TCUK TouchScreens and Black Pear Building Management System (BMS) interfaces. “It is a magnificent building and a superb example of a Toshiba heat recovery VRF installation,” said Andrew Bradison, specification manager for Toshiba distributor Cool Designs. “With its best-in-class energy performance, the system operates with significantly reduced running costs, with savings continuing to accrue over the life- time of equipment. Flexible zoning enables the complex requirements of tenants to be accommodated, ensuring very high comfort and satisfaction levels.” The client required the highest eciency combined cooling and heating system possible for the premium quality building, incorporating heat recovery, in order to achieve a Building Research Establishment Environmental Assessment Method (BREEAM) standard of “Excellent”. The design is based on Toshiba’s 3-pipe heat recovery SHRM-e VRF air conditioning, which in addition to class-leading energy eciency delivers an outstanding kW / kg refrigerant ratio, as defined in POL 01 of BREEAM. Close collaboration The design, which follows the British Council for Oces standard BCO 2014, required each storey to be divided into Toshiba SHRM-e condensing units in position on the roof, ready for piping up