Citibank House

Major commercial building air conditioning conversion achieving significant energy reductions.

The Citibank House in Perth undertook a comprehensive retrofit of their existing air conditioning systems, switching to Engas hydrocarbon refrigerants. The project focused on replacing older, less efficient chemical refrigerants with our natural M‑series blends. The result was an immediate reduction in compressor operating temperatures and a measured 28% drop in energy consumption for the building's main chillers. The conversion process was completed with minimal disruption to building occupants, demonstrating the ease of retrofitting existing systems with Engas products.

The Challenge

Prior to the conversion, the existing HVAC infrastructure was reliant on man-made chemical refrigerants that were not only environmentally damaging but also inherently inefficient. The high operating pressures caused significant wear and tear on the compressors, leading to increased maintenance costs and frequent downtime.

The Engas Solution

Our engineering team conducted a thorough assessment and recommended a direct drop-in replacement using Engas hydrocarbon blends. The retrofit process was completed seamlessly without the need for extensive hardware replacements. Safety protocols in accordance with AS/NZS 3000, AS/NZS 60079.1.10 & AS/NZS 5149.1-4 were strictly followed throughout the implementation.