Ziehl-Abegg product manager, Michael Martin, explains why it is important to optimise the devices and equipment that use refrigerants to ensure users get the best results.
Fans, especially axial fans, are essential components in refrigeration technology.
With chiller design, safety aspects must be taken into account when selecting a fan.
Fans and motors must be approved for use in systems that operate with flammable refrigerants and meet the requirements of DIN EN 60335-2-40 (e.g. for heat pumps and chillers) or 2-89 (e.g. for commercial refrigerated counters).
For example, when using flammable refrigerant gases, even if there is no point of contact during normal operation, a temperature difference must be maintained between the hottest electrical component that could come into contact with the refrigerant.
This also applies to the auto-ignition temperature of the refrigerant. The requirements are even stricter when it comes to a potentially explosive atmosphere. However, compliance with the above-mentioned standards is usually sufficient.
The ECblue axial fans from Ziehl-Abegg meet the corresponding specifications so they can be readily used with flammable refrigerants in accordance with the aforementioned standards; taking into account the specific requirements during installation or use.
Ziehl-Abegg’s ECblue technology helps to break the cycle created by the problems often associated with refrigerant gases.
With Ziehl-Abegg products the refrigeration circuit will continue to function even when using refrigerants that are problematical as there may be instances when no other alternatives are available.