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Work with Coral Air

Group training provided me with the opportunity to learn a trade.My employer 1300Apprentice has been very supportive from day one. They ensure all standards are being met in the workplace and my field officer is available whenever I need. Their expertise is to support young people through their apprenticeship. I would recommend using a group training company.

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IS YOUR CHILLERS CONSTANTLY TIPPING DUE TO LOW LOAD?

One of our clients was having problems with their chiller tripping out during low load conditions. The site consists of 2 water-cooled chillers 1 of which is dedicated to low load conditions. The site has a couple of zones that require cooling when the rest of the site is calling for heating.

To overcome this problem, we have installed a plate heat exchanger connected between the building’s chilled water loop and the condenser water loop. With a couple of zones calling for cooling, we redirect the chilled water to circulate through the heat exchanger rather than the chillers, the condenser water pumps are then operated. The temperature and mass of the condenser water are more than enough to provide cooling where required for long periods of time during low load conditions.

The above system has solved the problem of the chiller constantly tripping and also provided considerable cost savings by not running the chiller and using free cooling.

Ultising dormant cooling capacity in a condenser water /cooling tower loop, via a heat exchanger, generating large energy savings.

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GAS FIRED AIR CONDITIONING PLANT WHEN THERE IS NOT ENOUGH ELECTRICITY SUPPLY.

We had a client that was experiencing constant tripping of their main switch to their building due to the increased load within the building. Every time the power was lost there was a loss to the production of 3-4 hours due to the time it takes for the machinery to restart after a power failure.

For this client to upgrade the incoming power supply to the building would cost @300,000.00 and take 12 months or so to facilitate. As a solution to this issue, we implemented the below measures;

Installed a natural gas fired air conditioning plant connected to the property.
Installed power monitoring current transformers onto the building’s supply and monitor this through the building management system (BMS).
Installed a natural gas-powered generator and multiple changes over contactors. Natural gas was chosen as a fuel to eliminate the requirement for bulk liquid storage, bunting, flue cost, and refueling costs.
When the load on the building approaches the maximum the BMS switches of air conditioning systems as required, then starts the generator, swaps the power supply for the air conditioners over to the generator supply, and then restarts the air conditioning.
When the load on the building decreases then automatically swap the air conditioning load back onto the mains supply.
Since this system has been implemented there has not been a power loss to the building.