Titon Champions Recommended Test Methods - September 2013
As legislative measures lead us down the path to increased levels of airtightness in new homes, mechanical ventilation with heat recovery (MVHR) units are set to play an important role when it comes to indoor air quality and air flow. However, Tyson Anderson, Sales & Marketing Director at Titon, feels house builders and contractors still need to be aware of the importance of adequate test methods, to guarantee acceptable levels of performance, as he comments:
All Titon MVHR units are rigorously – and individually – tested under strict conditions to ensure they perform to a high standard. The current test method for MVHR in the UK is based on the European Standard BS EN 13141-6:2004 (to define the duct configurations) and 13141-7:2004, which covers the testing of heat recovery ventilation devices. Yet Titon has now gone one step further and had its popular HRV 1, 2 and 3 Q Plus PHI units tested according to TÜV SÜD standards – including important elements of the Passivhaus testing regime, which are recognised throughout Europe for strict test criteria and commitment to quality. The ventilation industry should be striving to ensure that all products are tested to similar levels to further improve energy efficiency, as well as maintain good indoor air quality. Titon HRV PHI units perform to a higher level than those without the PHI designation and each one is tested on line to meet the strict criteria of ≤3% internal air leakage. In production Titon units regularly achieve the actual ≤1% leakage recorded during testing in Munich.
While testing MVHR units on a rig under laboratory conditions is essential, it is equally as important to consider onsite applications – taking into account the whole system, including design, ducting, terminals and units. Documents such as Approved Document F 2010 of the Building Regulations and the Domestic Ventilation Compliance Guide 2010 (DVCG), BPEC training and the forthcoming NHBC Technical Standards for MVHR have been developed to provide guidance for design, installation and commissioning to ensure ventilation systems are operating effectively and efficiently.
For optimum performance it’s wise for the manufacturer to ‘design in’ the ventilation system, and a trained installer to ensure that the installation is as specified at first fix stage. Any variations, if not resolved, can lead to problems during commissioning, which can in turn lead to inefficiencies or adverse airflow performance.
As MVHR systems will become more prevalent in domestic building projects, it is imperative that Building Regulations and Technical Handbooks, as well as manufacturers’ guidelines are adhered to – otherwise long term energy savings offered by the technology could be undermined.
Titon has a large research, development and testing department in Haverhill, Suffolk. All products are subjected to a rigorous regime of quality testing to ensure they meet the performance criteria specified, as well as delivering reliability and optimum performance. To enable Titon to demonstrate its quality, products are tested to the latest British and European standards.