What are natural refrigerants?

Natural refrigerants are naturally occurring, non-synthetic substances, that can be used as cooling agents. These substances include R717 (Ammonia), R744 (Carbon Dioxide), R290 (Propane) and R600a (Isobutane). 

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Where can I see the new f-gas regulation?

The original F-gas Regulation, adopted in 2006, is being replaced by a new Regulation adopted in 2014 which applies from 1 January 2015. The new f-gas regulation is available on the European Commission website at this link.

I have heard that the use of R404A for servicing is banned from 2020, is this true?

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What F-gases are used for?

F-gases are used in several types of products and appliances, mainly as substitutes for ozone-depleting substances such as chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and halons which are being phased out under the Montreal Protocol and EU legislation.

-       Hydrofluorocarbons (HFCs) are used in various sectors and applications, such as refrigerants in refrigeration, air-conditioning and heat pump equipment; as blowing agents for foams; as solvents; and in fire extinguishers and aerosols.

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What are Fluorinated gases?

Fluorinated gases (‘F-gases’) are a family of man-made gases used in a range of industrial applications. Because they do not damage the atmospheric ozone layer, they are often used as substitutes for ozone-depleting substances. However, F-gases are powerful greenhouse gases, with a global warming effect up to 23 000 times greater than carbon dioxide (CO2), and their emissions are rising strongly. The three groups of F-gases are hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulphur hexafluoride (SF6).

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What are refrigerant safety groups?

The Refrigerant Safety Group classification consist of two alphanumeric characters (e.g. A2); the capital letter corresponds to toxicity and the digit to flammability. For toxicity, Class A toxicity signifies no toxicity at less than or equal to 400ppm, Class B toxicity signifies for which there is evidence of toxicity.

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Where are Tazzetti's branches based in the world?

Counting two business and production facilities in Europe, specifically in Italy and in Spain, and a strategic one in Asia, Tazzetti carries out business over an extensive territory through partnerships with clients in the 4 continents. To date Tazzetti's business activities cover 35 countries, including 20 EU member states and 15 countries in South America, North Africa and the Middle East.

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How are refrigerant fluids classified?

Regarding the identification of halogenated hydrocarbons, they are univocally designed with initials based on ASHRAE nomenclature (American Society of Heating, Refrigerating and Air Conditioning Engineers). Like the AHRI (Air Conditioning and Refrigeration Institute) and its definition of marketing specifications for refrigerant fluids, said organisation is not a regulatory institution. However, its identification of refrigerant fluids is a landmark that is universally acknowledged and accepted by companies.

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What is the difference between primary refrigerant fluids and heat transfer fluids?

Primary fluids are always used in compression refrigeration cycles that include a compression, condensation, expansion and evaporation sequence; therefore, they are direct expansion fluids because they directly evaporate in the utility that requires refrigeration.

Heat exchange fluids exchange heat with primary fluids to transfer cold into large circuits, thus optimising costs and safety because they are not hazardous fluids. This remarkably reduces levels of circulating primary fluids and the probability of accidental losses.

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