AIR CONDITIONING
Just when you thought it was safe to buy a chiller…
Buying a chiller can be an emotional experience nowadays – even Ecodesign is in tiers. Darren Farrar, marketing manager, Airedale International Air Conditioning explains.
2
018 seems like a long time ago now. Since then we’ve had a world cup, a royal wedding, a presidential impeachment,
a new Prime Minister, Brexit shenanigans, a global pandemic…and Greta Thunberg has led the world in demanding a greener future for our planet. One of the EU’s responses to the global climate emergency was the introduction of Ecodesign regulations for energy using products…and the specific legislation covering much of the HVAC industry came into force on what seems like eons ago now, the 1st January 2018. We know…Ecodesign has been done to death, not least on these pages. End users, consultants and contractors may be forgiven for thinking that all is rosy; after all, it is incumbent on manufacturers, not them, for ensuring the regulations are adhered to. However, with Tier 2 now looming ever closer, it is time for the whole industry to once again pay attention.
A Quick Recap The Ecodesign legislation was introduced by the EU in order to reduce the impact that energy- using products such as air conditioning has on the planet. The directive sets out minimum mandatory requirements for the energy
20 September 2020
efficiency of these products and helps prevent creation of barriers to trade, improve product quality and deliver environmental protection. As well as air conditioning equipment, it also affects consumer goods like dishwashers, vacuum cleaners, computers and TVs. With the introduction of the Ecodesign Directive, the different product categories were separated into groups called Lots. Lots that affect industrial refrigeration end-users are collected in two product groups: ENTR Lot 1 includes Medium and Low Temperature process chillers (supply water temperatures <-8°C and <-25°C respective- ly) and condensing units.
ENTR Lot 21 includes air heating products with a rated capacity not exceeding 1MW, fan coil units and cooling products and high temperature process chillers with a rated cooling capacity not exceeding 2MW
This article focuses on Lot 21. Ecodesign allows decision makers to easily compare chiller efficiency performance by looking at two well- defined and straightforward sets of figures for comfort and process cooling. It is important, wherever you sit in the supply chain, to have an understanding of these metrics and how they relate to performance.
The Ecodesign metric for comfort cooling
chillers is Seasonal Space Cooling Energy Efficiency (SSCEE). It applies to comfort chillers with a supply water temperature exceeding +2°C and is defined as a percentage. It takes into account the SEER (Seasonal Energy Efficiency Ratio) and annual electricity consumption. It is a similar metric to ESEER in terms of ambient temperature but has defined accurate weightings based on ambient run hours and standby power consumption. The Ecodesign metric for industrial High Temperature (HT) Process chillers is Seasonal Energy Performance Ratio (SEPR). It applies to HT process chillers with supply water temperatures between +2°C and +12 °C and defined as a figure (similar to that shown as a SEER or ESEER value), It is calculated as the ratio between the annual refrigeration demand and the annual electricity consumption.
Why should I be aware of the Tier 2 regulations?
Tier 2 compliance becomes law on 1st January 2021. This means that if you are specifying a chiller now, there is a good chance that it will have to be Tier 2 compliant. Products must be compliant with the relevant tier at the date at which they are placed onto the market, i.e. delivered to a customer – either site or a customer’s storage facility. BREXIT does not
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