Sydney Central Station

A heritage-listed railway station in the heart of Sydney’s CBD, Sydney Central Station is the largest and most engaged train terminus in all of Australia. 

Having opened in 1906 and achieving NSW State Heritage Registry in 1999, Sydney Central Station’s operation plays a hand in the learning, working and recreation of millions of Australians and tourists alike. 

The iconic station was upgraded between 2019 and 2020, with a revitalised HVAC system being part of the upgrade’s brief. Masterflow supplied carefully selected Clivet units to the East and West Wing of the Metro Platform. 

Our consultants required high-specification TB1 thermal bridging, as well as horseshoe heat pipe configuration for powerful dehumidification capabilities. 

  • Location:Haymarket (NSW)
  • Industry:Government

Our Process: 

In discussing the brief’s specification in terms of required dehumidification capabilities, low Global Warming Potential (GWP), energy efficiency, airflow requirements, noise level and duct design – we determined that the 24.4 kW Air Handling Unit by Clivet was the ideal solution.  

Two units were supplied to Sydney Central Station, one for the East Wing, and one for the West Wing of Basement Level 1, providing air filtration, temperature and humidity control to guests of the station year-round. 

These units include sensors for monitoring CO2 levels, providing readings that can be used to adjust ventilation rates, ensuring that indoor air quality meets specified standards – and that use is modulated for efficiency and environmental conservation. 

With TB1 specification, the unit’s frame structure is fully insulated with composite materials and has a lower heat transfer factor than aluminium frame structures, and achieves a TB1 Thermal Bridge Free class. This makes it exceptionally suitable for high humidity environments .



Thanks to the Horseshoe Heat Pipe Configuration of these Clivet units, there is powerful energy recovery from exhaust air stream available, as well as excellent thermal performance. This reduces energy expenses while enhancing humidity control and heat transfer. 

The protection offered by the TB1-rated frame ensures that condensation will not leak onto the unit or plantroom floor, preventing health hazards for staff, preventing the formation of rust causing untimely and costly repairs, and preventing premature reductions in efficiency. 

We are proud to report that the units remain in use at Sydney Central Station, creating comfortable and safe air to guests, as well as longevity and efficiency to the developer, while operating with low emissions for the safety of the planet. 

Solutions Used