The OxzeRo element consists of a meandering plastic pipe for water transport (outer diameter of 10 mm and wall thickness of 1.3 mm), the whole length of which is clamped using a specially designed aluminium heat conduction profile. The OxzeRo climate element is produced and glued in a fully automatic production process, in the company's own production facilities, which means quality is always safeguarded. During the heating process, the OxzeRo climate panel mainly releases heat into the space via radiation. When cooling, heat from the space is transferred to the ceiling panel, and then extracted from the relevant area. The permissible operating pressure amounts to approximately 6 bar, which means several storeys can be included in a single circuit.
The OxzeRo element only has limited water content and therefore low heat content. The OxzeRo climate system therefore quickly responds to temperature and/or volume fluctuations in the water supply. This means the OxzeRo climate system is ideal for change-over systems.
Oxygen diffusion when using plastic pipes and multi-layer pipes in installations is subject to norm DIN 4726: 2008-10. This norm mentions what the maximum amount of oxygen diffusion per unit must be (m2 of tube wall or per m in tune length) in order to refer to the pipe as resistant against oxygen diffusion. Depending on how much piping (walls) is used in the installation, systems with plastic pipes that are resistant against oxygen diffusion in accordance with norm DIN 4726 could still contain oxygen-rich water.
That is why development activities for the OxzeRo climate system focused on providing very high cooling and heating capacity with a minimum amount of plastic piping. The unfavourable heat conduction properties of plastic pipes are compensated in the OxzeRo climate system by increasing the heat-exchanging surface of the tube wall as well as the contact surface with the metal panel. This has been realised by clamping two thirds of the plastic pipe into the aluminium heat conduction profiles, and by gluing these 40 mm wider aluminium profiles into the ceiling panels. Due to the excellent heat conduction offered by aluminium, and the implemented glue connection, excellent heat transfer has been realised from the plastic pipe to the ceiling panel, and means the amount of required piping can be reduced by 75%.
The unique combination between the implemented oxygen diffusion resistant PE-RT pipe (according DIN 4726), the relatively low amount of plastic pipe and the 100% oxygen diffusion resistant RIXc (PE-Xc/AL/PE-Xc) distribution pipes mean the OxzeRo climate system requires hydraulic separation and the use of corrosion-proof materials. However, depending on the oxygen diffusion resistance of materials used elsewhere in the circuit, it may be necessary to implement pipes and incorporated components that are suitable for water with a higher or lower oxygen content. This helps to ensure problem-free operation.