Lessons and Measures Learned from Continuous Commissioning(SM) of Central Chilled/Hot Water Systems

Abstract

As it has been proved repeatedly that commissioning is very necessary for new construction and renovation/retrofit projects, we found continuous commissioningSM (CC) is an effective and efficient way to manage and optimize existing central chilled water and hot water system operation. It can be performed before, during, or after building side continuous commissioning. Successful central chilled/hot water system CC not only results in improved production and distribution, but also achieves significant thermal and pump power savings. It quickly evaluates building HVAC (Heating, Ventilating, and Air-Conditioning) system performance for savings opportunities when carried out before building CC, or serves as a necessary and productive follow-up when performed after. Meanwhile, continuity is the key factor to achieve the persistence of savings and optimized performance.