Technical Information
Features and benets
TCGB0079 rev.0 - 01/2013
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2.2 Eco-Desing and Seasonal Efciency
To respond to the European Environmental Objectives of the 3 x 20 (-20% energy consumption, -20% CO
2
emission, +20%
renewable energy) within 2020, Europe revised the original Ecodesign Directive (Directive 2005/32/CE) and enlarged the
applications covered. Initially the scope of Eco-Design was products using energy (E.u.P.). From now on, the scope of
Eco-Design will be all products related to energy reduction (ex : air conditioning, windows…) and is called ErP (Energy
related Products).
2.2.1 Eco-Design
The Eco-Design of Energy-related products (ErP) Directive provides consistent EU-wide rules for improving the environ-
mental performance of energy related products (ErP) by requiring integration of eco considerations at the outset of product
design – ensuring reduced energy consumption to benet both businesses and consumers. It implies a consideration of
the environmental aspect of any products or services developed. This approach consists of qualifying ‘CO2 emission’ and
‘energy consumption’ during the whole life of the product (from design to the end life, including transport).
Eco-Design analyses highlighted the fact that the major environmental impact is related to the ”usage period” of the above
products. For this reason, ErP xes minimum performance levels to allow products coming in the European market. Simul-
taneously, ErP xes technical communication contents to end user through a label (data on performance, sound level) in
order to help them to make their choice.
ErP will be applied to all air conditioning and heating equipments, whatever the type (air/air, air/water, water/water, boil-
ers…), the capacity, the usage (heating, cooling, SHW) is, through different “Lots” and at different application frameworks.
The rst one, coming into application on 1rst January 2013, is “Lot 10”. It does concern all air conditioning systems (air/air),
with a capacity lower than 12kw, operating in heating and/or cooling mode.
These regulations include air conditioning products, which are a key source of energy consumption in buildings, and re-
quire all manufacturers to calculate energy usage in a more realistic way, moving from nominal to seasonal, creating a
more accurate calculation and representation of products in the market.
3 Key issues in terms of compliance are described in Directive 2010/30/UE N°626/2011 dated from 4th May 2011 and
Directive 2009/125/EC N°206/2012 dated from 6th March 2012.
(a) Fixing a minimum level of performance in heating and cooling mode
(b) Fixing a maximum sound power level for indoor and outdoor units
(c) Fixing communication of above characteristics to end users through labelling
Hitachi has always engineered the most environmentally-friendly heating and cooling products from its factories, and is
proud to launch a complete range of fully ErP-compliant air conditioning products. Where product ranges and models fall
outside the scope of the ErP directive (<12kW), there are a series of enhancements for RAC; in particular IVX Premium
and IVX Standard Series, which already are market leaders in Japan’s Annual Performance Factor (APF) for seasonal
efciency.
2.2.2 Seasonal Efciency
Seasonal Efciency has been developed in the Eco Design Directive (EU’s Energy Related Products Directive), which
species the minimum requirements that manufacturers must integrate into their energy using products.
Target will rely on a seasonal performance of the equipment called SCOP (heating mode) and SEER (cooling mode) for an
average European climate. This performance value will replace historical nominal values of COP and EER.
The new calculation uses several rating temperatures for cooling and heating, and integrates partial capacity operation
in the calculation. Since most systems operate most of the time under a partial load, the new methodology gives a better
indication of expected real-life performance. The new seasonal efciency calculation will also take into consideration the
power consumed by devices in auxiliary modes like standby mode.
Seasonal Energy Efciency Ratio (SEER) in cooling and the Seasonal Coefcient of Performance (SCOP) in heat-
ing give a more accurate estimation of the real performance of the equipment during the whole period of usage, all while
considering:
• Several points of measure (In cooling mode: an outside temperature of 20 °C, 25 °C, 30 °C and 35 °C; in heating mode:
an outside temperature of +12 °C, +7 °C, +2 °C, and -7 °C.
• Different compressor speeds (full load and partial load), Auxiliary consumption (crankcase heaters, thermostat off
mode, OFF mode…)
TCGB0079_rev0_11-2012.indb 20 29/01/2013 14:26:51