Cooling: a safe and certified range of fans

For efficient and environmentally friendly refrigeration appliances

Feb. 17, 2022

When it comes to cooling, fans are usually used to facilitate heat exchange with the environment, in combination with compressors and evaporators. However, the use of new gases in refrigerant circuits places them in situations of potential ignition risk, in the event of leaks.

Gases in cooling circuits

It has been decades since the global awareness that the chlorine contained in the so-called chlorofluorocarbons (CFCs) was the cause of the thinning of the atmospheric ozone layer. Abandoned the first refrigerant gases from 1980s, therefore, the replacement went in favour of hydrofluorocarbon gases (HFCs) and hydrochlorofluorocarbons (HCFCs), and the introduction of the obligation of periodic checks and plant certificates.


Since 2014, new restrictions on the use of refrigeration fluids containing chlorine have further contributed to reducing their use, in favour of natural hydrocarbon (HC) refrigerants such as ethane, propane, cyclopropane, (N) butane, (iso) butane, pentane, given that hydrocarbons that contain neither chlorine nor fluorine are compatible with the objectives of eco-sustainability and safeguarding the ozone layer.


To protect the environment, however, we have been called to face a new challenge: HCs are flammable under normal environmental conditions and it was necessary to regulate their use with extreme care, so much that the EU has published Directives and Standards the entire life cycles of the entire refrigerating apparatus, from design to disposal.


The Fandis range

All the active components of the refrigerating appliances are involved in this control and disposal process and, for this reason, Fandis, our new supplier, has expanded its range of TÜV certified fans according to the requirements of the following safety standards, particularly for household and similar electrical appliances:


  • CEI EN 60335-2-89 (commercial refrigeration appliances),

  • CEI EN 60335-2-24 (refrigeration appliances and ice cream makers),

  • CEI EN 60335-2-40 (heat pumps, air conditioners, and dehumidifiers).


The three standards indicated, referring to IEC 60079-15, guide the manufacturer to exclude the risk of ignition of the refrigerant gas, prescribing a series of checks on the components. For fans, in particular, attention is paid to surface temperatures, electrical discharges between metal parts, and the integrity of resins and insulators.


The use of certified fans allows reducing development times and certification costs.


To learn more about the Fandis range of fans and refrigeration components, click here or contact us. Our product specialist will find the best solution for you application. To learn more about fans for serial production in our offer, visit our website.

CONTACT

Aleksandra Memon

Power Electronics | PCB Relays & SSR | PCB Connectivity


T: +386 41 681 876

E: aleksandra@nexum.si