CASE STUDY 1TARGET CHERMSIDE
CASE STUDY 2SOFITEL HOTEL BRISBANE

CASE STUDY 1TARGET CHERMSIDE

When faced with any chiller problem, Four Seasons has the experience and knowhow to provide solutions, so when the Carrier screw chiller serving the large Target store located within the Westfield Shopping Centre at Chermside failed, our client needed a cost effective solution and fast.

Scenario

One of the three screw compressors serving the chiller had failed due to electrical fusion. Since these compressors are unable to be repaired, and with delivery of a new screw compressor over 12 weeks away, Four Seasons needed to find a solution to get the chiller back on line quickly.

Our engineers worked through a design to incorporate the Turbocor compressor technology into the refrigeration system i.e. replace the Carrier screw compressor with a new Turbocor compressor. As this was the first time this type of retrofit had been attempted on this type of chiller, our engineers carefully thought through the problem and came up with a satisfactory solution to suit not only the refrigeration aspect, but the control of the compressor staging which is vital to ensure the chiller performs correctly in all conditions.

After effectively installing and commissioning the new Turbocor compressor, routine observation and testing of the new equipment proved the solution had been a total success and, 3 years after the installation, the chiller has not missed a beat and the client very happy with the outcome.

The additional bonus for the client is the chiller now performs more efficiently using less energy due to the efficiency of the Turbocor compressor technology.

CASE STUDY 2SOFITEL HOTEL BRISBANE

In 2006, the centrifugal chiller serving the air conditioning plant at the Sofitel Hotel required replacement as the machine had reached the end of normal serviceable life, and the client needed an energy efficient solution.

Our Sydney based business partner, Inter-Chillers, had been successful with their bid to carry out the work, and, engaged Four Seasons to perform the difficult task of removing the disused chiller then installing the new Powerpax chiller machine.

Scenario

The main plant room being condensed and located on the 28th floor of the hotel, posed a new challenge not only to remove the redundant chiller, but to install the new chiller, as the building surrounds precluded the use of a crane to lift the machine into position.

First the old chiller was dismantled, cut up then removed form site.

The new Powerpax chiller was delivered to Four Seasons workshop in knocked down form, then transported to site. The new split vessel design of the Powerpax chiller made installation possible as all components needed to be manually handled to the plant room, this difficult task was co-handled via a local Brisbane company Hector the Erector.

The new chiller has run without incident since installation with the client very happy with the success of the installation and the energy efficiency of the machine.

Since this is the first installation of this type in the world, Four Seasons, via Inter-Chillers, has once again set a new bench mark in our industry.