Energy savings and environmental matters have been a major concern during the past years, today more crucial today than ever. So much that in 2008, the EU adopted an action plan intended to reduce CO2 emissions by 20% (compared to 1990 levels) and increase energy efficiency by 20% by 2020. In this context, the directive Ecodesign for Energy-related Products 2009/125/EC (ErP) was introduced.
For practical reasons, the implementation of the Ecodesign directive is divided into a number of product families, called ‘lots’, focusing on products with significant energy consumption and for which energy saving potential is significant. Therefore these ‘lots’ are regulations implementing the directive by product family, setting up energy efficiency requirements.
After setting energy efficiency requirements for fans (regulation 327/2011, also known as ErP 2013-2015), the Commission set under regulation 1253/2014 the thresholds for all ventilation units, provided that power consumption is greater than 30 watts by air flow.
All ventilation units are not subject to the same requirements. There are two major categories of devices according to their airflow and for which the requirements are different: Residential Ventilation Units or RVU (airflow < 250 m³/h) and Non-Residential Ventilation Units or NRVU (airflow > 1000 m³/h). Devices with between 250 and 1000 m³/h flow can belong as well to the UVR than to the UVNR. However, the manufacturer must specify the category to which they belong. Among the UVNR, a distinction is also planned between the units to simple UVSF (insufflation or air extraction) and double flow UVDF (blowing and extraction of air).
Exceptions to this regulation are ventilation units designed specifically to work in case of emergency, to be used in a potentially explosive atmosphere or designed to move air to “extreme” temperatures (above 100 °C or below -40 °C). Kitchen range hoods are exempted as well since they are the subject of another regulation. Same for air handling units aimed to heat and/or conditioning (LOT 21).
The implementation of the requirements takes place in two tiers, first scheduled for January 2016 and the second for January 2018.
As announced here above, the requirements depend on the category of the ventilation unit.
Concerning residential ventilation the main requirement appears as a particular coefficient: the Specific Energy Consumption SEC. It is an energy-efficiency indicator which reflects the annual energy consumption for ventilation per m² heated floor area, taking into account the annual energy savings thanks to the heat recovery and expressed in kWh/m²a.
In other words a SEC value of 0 kWh/(m²a) means that the annual energy consumption of the unit is exactly balanced by the heat gains due to the heat recovery system (by the way 0 is the 2016’s threshold imposed by the Commission). Energy classes have been defined depending on this value, in order to set up an eco-labelling as already done for other products. There are eight categories RVU can belong to, from A+ (the more efficient one) to G.
So starting from 2016 all RVU will be sold with the following label:
In addition to a list of parameters and technical information that must be published, a minimum set of criteria to be achieved have been set:
The thresholds for 2016 and 2018 are calculated based on a formula which takes into account the airflow, the type of filter used and dry efficiency of the heat recovery.
It is important to know that, if the reference values for requirements are taking into account M5 and F7 filters, these types of filters are not a requirement. Using filters with lower filtration class creates a penalty on the SFPint threshold to respect (lowest value and therefore more severe).
In addition to a list of parameters and technical information that must be published, specific requirements have been set:
For non-ducted unit, sound power level thresholds of 45 dBA (2016) and 40 dBA (2018) are required.
The targeted products are devices intended for the heating of air or air cooling.
More precisely, there is 3 distinct group :
-air heating products with a rated heating capacity not exceeding 1 MW;
-cooling products and high temperature process chillers with a rated cooling capacity not exceeding 2 MW;
-fan coil units.
The standard applies in 3 steps : firstly in January 2018, secondly for the 26th of September 2018 (does not concern Lemmens products) and finally, for January 2018. These requirements depend on the category of device :
Air heating products :
For those devices, the Commission defined a factor called “seasonal energy efficiency”, which represent a ratio between the useful effect of the product (warm/cold produce over the heating season, ratio of temperature, …) and the costly effect (energy used for the warm/cold production).
Among its lines of products, P. Lemmens company made some air heating products using electric batteries. From 1 January 2018, this units have to present a minimal seasonal energy efficiency of 30%, then 31% from 1 January 2021.
It relate to the following products :
-Single flow ventilation unit COMPO with electrical battery (KW);
-Air curtain with electrical resistance AIRA E
In addition to the seasonal energy efficiency, the manufacturer is required to publish some technical information.
Cooling products :
The Lemmens products making cold are not part of this group because that cold is made neither compression cycle or sorption cycle.
Fan coil units :
This category is not concerned by the seasonal energy efficiency. However, the Commision order to publish some technical information for fan units.
Model | NRVU (LOT6) | RVU (LOT6) | Lot 21 | ERP |
---|---|---|---|---|
Fan | TAC5 | |||
AIRA | All | |||
AE | All | |||
LCO | All | |||
COMPO | All | |||
CUBUS | All | |||
DAC | All | |||
Global | All | |||
Global ECO | All | |||
Up | HR up 800-2000 | HR up 450 | ||
Flat | HRf 600-2000 | HRf 450 | ||
Mural | HRm 600-1200 | HRm 450 HRm 450 Eco (HP) | ||
Total Eco | All |
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