NCCx: Multi-Use Challenges

  • Harunori Yoshida, Professor Emeritus – Non-Profit Organization Building Services Commissioning Association, Japan
  • Naomiki Matsushita – Aleph Networks Corporation
  • Jorge Torres-Coto, PE, CCP, CxA, BECxP, CxA+BE, EMP, LEED AP BD+C – Kitchell

This session presents challenges for commissioning of multi-use new construction and existing buildings. First up is the Kyoto Station Building, a 235,942 m2 (2,539,658 SF) complex with a department store, hotel, theater, and specialty shops. Constructed in 1997, the facility consumed the largest primary energy as a single building in the Environmental Model City of Kyoto, Japan. The speakers describe their process, findings, and conclusions in detail; this EBCx project began in 2010 with investigation and analysis using MBCx, followed by design and construction completed in 2016. Project implementation included new building systems configuration and implementation of the most advanced available energy management system to meet the energy use reduction goal of 60%. Optimization is continuing with ongoing commissioning and functional performance testing through 2019.

The second presentation focuses on a large detention facility, where providing commissioning services can be a daunting undertaking. The speaker presents differences between commissioning in a “standard” commercial building and this sector’s high-priority operating requirements. The critical nature of the building use means issues that could be left due to sampling can be unforgiving. The interdisciplinary systems can be overwhelming: lighting control systems, water management systems, detention systems, video systems, intercom systems, etc., all going through an IP network system that also has to be commissioned, not to mention the comfort and lighting control systems. The possibility of “glitches” during a power outage on the majority of systems in a facility of this nature should be tested [again] at the end of the commissioning process. Even though the majority of the Cx Team may have finished and left, the final “test to rule all tests”, the Facility Shut Down Test, must be completed.