Treasury Building, King Edward Terrace
Base building mechanical refurbishment of the Commonwealth Treasury Building in Canberra, comprising replacement of four cooling towers with Baltimore Aircoil PCT0909P3L units, supply and installation of seventeen high-efficiency motors across six chilled water pumps and eleven AHUs, Aquatherm PPR condenser water pipework, precast concrete cooling tower piers, and Schneider EcoStruxure BMS controls integration. Delivered as a joint venture between QEG and CBR Mechanical as mechanical subcontractors to head contractor Cockram Construction.
Completing on budget for Treasury is quite novel but well received
Project story
QEG was engaged as joint venture partner with CBR Mechanical as mechanical engineering subcontractors to Cockram Construction for the Treasury Building base building refurbishment in Canberra. QEG's scope encompassed full 3D Revit mechanical coordination drawings, design engineering, project management, and commissioning for the replacement of four cooling towers with Baltimore Aircoil PCT0909P3L units, supply and installation of seventeen Pope E-Series high-efficiency motors across six chilled water pumps and eleven air handling units, and Aquatherm PPR condenser water pipework. Precast concrete pedestals were prefabricated off-site and installed to support the new cooling tower array. BMS integration using Schneider EcoStruxure provided full CT controls monitoring and VSD integration, commissioned in August 2020. NEBB-certified commissioning was performed by Flowtech. All site personnel were required to hold baseline security clearances for unescorted access within the Commonwealth facility.
Equipment installed
- 4 x Baltimore Aircoil PCT0909P3L cooling towers (CT1–CT4, serials 19J0463–19J0466, belt SPR3750, shipped December 2019)
- 3 x chilled water pumps — Pope E-Series (CHWP-5/6/7, 30 kW D200L frame)
- 3 x chilled water pumps — Pope E-Series (CHWP-8/9/10, 7.5 kW D132M frame)
- AHU-A01/02/04: Pope E-Series 15 kW D160L
- AHU-A03: Pope E-Series 11 kW D160M
- AHU-A05/06: Pope E-Series 5.5 kW D132S
- AHU-A07: Pope E-Series 4 kW D112M
- AHU-B01: Pope E-Series 18.5 kW D180ML
- AHU-B02: Pope E-Series 7.5 kW D132M
- AHU-C01: Pope E-Series 15 kW D160L
- AHU-C02: Pope E-Series 7.5 kW D132M
- Aquatherm PPR condenser water pipework
- Precast concrete cooling tower pedestals (prefabricated off-site)
- Schneider EcoStruxure BMS — cooling tower controls and VSD integration
- Airmaster VSDs (AHU motor starters)
“The cooperation between CBR and QEG provided valuable combined engineering and installation capabilities that benefited this project greatly. The weekly progress reports kept us fully informed of their past and future activities.”
Photography