What is EN 14825?
[edit] What is EN 14825?
EN 14825 sets out the temperatures, part-load conditions, and calculation methods for determining the Seasonal Coefficient of Performance (SCOP) and Seasonal Energy Efficiency Ratio (SEER). It applies to the operation of air-conditioning units, process chillers, and particular types of hybrid heat pumps. The values used to define the SCOP can be calculated or measured. If measured values are applied, the standard covers the applicable test methods.
[edit] The importance of SCOP and SEER as an indication of heat pump efficiency
The operation of a heat pump will be affected by the seasonal temperature changes of the energy source. Whilst the Coefficient of Performance (COP) determines the instantaneous efficiency of a heat pump based on test conditions, SCOP indicates the aggregated annual performance using climate data across Europe. The result is a standard ratio of total heat energy generated (the output) for each unit of energy or electricity consumed (input). The SEER similarly indicates the cooling efficiency of the heat pump in the annual timeframe, where the heat pump provides comfort cooling.
[edit] SCOP and SEER and specification of heat pumps
The Seasonal Energy Efficiency Ratio (SEER) and SCOP calculations consider a heat pump operation under standard conditions. It does not account for heat losses at the site of operation or its impact on space heating. Weather factors are assumed to be constant, reflecting the average European climate data.
To find out more about the impact of EN 14825 and to discuss your project in detail contact our industry experts. They can advise on a variety of industry leading heat pump solutions and heat pump designs to fit with the objectives and the energy strategy of your current or next project.
--Glen Dimplex Heating & Ventilation 14:55, 10 Aug 2021 (BST)
Featured articles and news
ECA Industry Awards 2024 shortlist revealed
22 leading businesses from across the electrotechnical and engineering services sector.
Government unveils Skills England strategy
Skills England to transform opportunities and drive growth.
New Government Hub for York Given Planning Green Light
For up to 2,600 civil servants, due for completion by 2028.
Construction Skills Certification Scheme cards
July update on Professionally Qualified and Academically Qualified Person Cards.
BSRIA Briefing 2024, November 22
Sustainable Futures: Redefining Retrofit for Net Zero Living.
The CLC on driving competency in the retrofit sector
Previously published roadmap on skills for net zero.
The first labour government King's speech in fifteen years
Construction industry reactions, support and some concern.
CIOB Retrofit of Buildings Technical Information Sheet
What retrofit is, the approach to be taken and processes to be followed.
Adapting Historic Buildings for Energy and Carbon Efficiency
Historic England advice note 18, free download published.
10 retrofit projects revisited 10 years after completion.
Information orders, building liability orders and SPVs
Key BSA terms and how they impact special purpose vehicles.
Listed despite problems with its design.
Zen and the art of cycling exploration.
Design Council Homes Taskforce launched
To support government 1.5 million homes target within UK climate commitments.