Equilibrium Air Conditioning designed and installed chilled water/hot water systems for two major retailers, Coles and David Jones, at the Macquarie Centre redevelopment project. Equilibrium has over 40 employees including 12 professional engineers and seeks sustainable solutions by providing design and construct services for commercial, retail, health, and specialist projects. The main challenge was installing major equipment into the completed structure which required extensive horizontal movement of chillers and air handling units, but Equilibrium completed the work on time.