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Frequently Asked Questions
The natural refrigerant R744 (CO
2
)
Characteristics of R744
What is R744?
Are R744 and CO2 the same thing?
What are the main characteristics of R744?
Why is R744 environmentally friendly?
Does R744 have any impact on the Ozone layer?
Is R744 flammable?
Is R744 toxic?
Where does the CO2 used in refrigeration come from?
Is R744 a totally new refrigerant?
Applications
For which applications is R744 suitable?
What are the main benefits of R744 in Hot Water Heat Pumps?
What is the state of development in this field?
What are the main benefits of R744 in commercial refrigeration?
What is the state of development in this field?
Mobile Air Conditioning
Technology
How does a R744 MAC system work?
What pressure can a R744 system reach in operation?
How do R744 systems differ from those using HFC-134a?
What is the benefit of high-pressure operation?
Which components are different in R744 systems compared to current ones?
Are there any additional benefits resulting from the design of R744 systems?
What is the performance of a R744 MAC system compared to a current one?
Are there special requirements for using a R744 MAC system?
Can I also use the R744 MAC for heating my car?
What are the benefits for the driver?
How fast can a R744 system cool a car?
How much CO2 is needed during one life cycle?
Does a R744 MAC system require servicing?
Environment
Is CO2 not supposed to contribute to global warming?
What are direct emissions?
How does a R744 MAC system reduce direct emissions?
What are indirect emissions?
How does a R744 MAC system reduce indirect emissions?
How can I help the environment by using R744?
Concretely, how much greenhouse gases can R744 save to the atmosphere?
Economy & Market
Are R744 MAC systems already available?
For what kind of cars is R744 suitable?
How much fuel does a MAC system normally consume?
How much fuel can be saved by using a R744 MAC system?
Is a car equipped with R744 MAC more expensive than a present one ... when producing and buying a car?
... when driving and servicing a car?
... when disposing of a car?
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Johnson Controls
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Industry News
Heat pump market growing fast in China
180 million Swiss francs to support heat pumps & natural refrigerants
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2
Commercial Refrigeration
Canadian firm launches supermarket CO
2
system
Marks & Spencer reasserts CO
2
vow in new CSR report
Lidl: New distribution centre using only natural refrigerants
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