HARMONAC Case study report: IT Case Study 1: Office – Water system. ISBN: 978-1-899895-72-4

This case study examines a 10 floor office building built between 1969 and 1972. The A/C system of the office spaces is an all-water, two-pipe, fan coil type. No mechanical ventilation is provided. The main plant comprises a cogeneration unit. The cold generators for the system are one Trane RTWB 214 (screw) and an absorption unit, Broad BDH 20, installed in June 2008. Condenser heat rejection is achieved with underground water. The building has an online electrical consumption metering system that was installed within the EU funded Policity project, in which Politecnico di Torino is also involved; aim of the project is the detailed analysis of electrical energy consumption of buildings.