>B< MaxiPro in pole position as ACR solution at Tailem Bend Motorsport Park
Download Case Study
Air conditioning and mechanical services expert Specialist Air Management chose Conex Bänninger’s flame-free, easy-to-fit ACR press fitting >B< MaxiPro for the more than 1,000 joints needed to complete this major project.
The newly-constructed Tailem Bend Motorsport Park is home to a racetrack, second only in size to Germany’s Nürburgring. It features a world-leading single lay race surface of over 7km and includes a 128-bed hotel, corporate and media centre and all-important race control.
The months before opening were extremely busy with the installation of the park’s heating and air conditioning systems taking place over the second half of 2017.
The contract was carried out by a four-man team from Adelaide-based Specialist Air Management (SAM), which has delivered air conditioning and mechanical services to commercial and government clients for over 20 years.
For the hotel’s heating and hot water needs, the project utilised Mitsubishi VRF (variable refrigerant flow) and heat pump technology, coupled with indoor cassette and split units for cooling the bedrooms. For the race control and media centre a Temperzone air conditioning system was used.
With around 3,000 metres of hard drawn copper pipework to piece together, SAM’s installation team needed a high performance jointing solution to complete the job. They chose >B< MaxiPro, which has become the company’s fitting of choice – having used it on the majority of projects since its launch in Australia in 2016. For Tailem Bend, SAM also used Conex Bänninger’s copper >B< Press water system for the condensation drains to match the high-quality finish of the building.
>B< MaxiPro was developed specifically for air conditioning and refrigeration applications, with a maximum operating pressure of 48 bar and a temperature range of -40℃ to 121℃.
As a flame-free mechanical joint, it means there is no requirement for a hot works permit or nitrogen purge. Following preparation, it takes just five seconds to complete a joint using a ROTHENBERGER press tool.
Michael Gilroy, Managing Director of SAM said: “Each of the four SAM crews are equipped with >B< MaxiPro equipment. It is very much their tried and tested, preferred technology.
“As well as negating the need for a hot works permit, it increases productivity significantly. That’s not just down to no hot works permit but the crews could work in singles rather than pairs.
“With over 1,000 >B< MaxiPro fittings we estimate it gave us a faster installed project by around 25%.”
Conex Bänninger recommends using ROTHENBERGER press tools and jaws which are designed specifically for use with >B< MaxiPro. The tooling system is lighter and much simpler to use when compared to traditional brazing, which requires the engineer to manhandle heavy gas bottles around.
>B< MaxiPro has the benefit of a 3-point press; two presses on each side of the bead and one press compressing the O-ring. This provides a permanent and secure joint.
Michael Gilroy added: “We encountered some extremely tight and sensitive areas, which we were able to overcome because you can use the press tool in confined spaces, but also by prefabricating sections of the pipework before making the final connections.
“Having completed the work we carried out a final test programme to confirm the installation as proven. We did an initial nitrogen pressure test for 24 hours then a vacuum test to 250 microns which showed a minimal drift over 12 hours.
“Since the early days we had all our crews trained as certified >B< MaxiPro installers. We are fully convinced of the system but it’s certainly nice to have the benefit of the extended warranty that comes into effect when you have completed the training. It also means something to the client as they know they are dealing with professional companies.”
>B< MaxiPro can be used with hard, half hard or annealed copper tube conforming to AS/NZS 1571:1995. The innovative press system can be used with many refrigerants, including R1234yf, R1234ze, R32, R134a, R404A, R407C, R407F, R410A and R507.
For further information on Conex Bänninger and their range of commercial solutions, please go to conexbanninger.com.