EN 14825
Air conditioners, liquid chilling packages and heat pumps for space heating and cooling — testing and rating at part load and seasonal performance (SEER/SCOP)
Standard Introduction
EN 14825 is an active standard published by CEN/CENELEC (European Standardization). It is commonly used across Machinery, Manufacturing, Energy, Construction and applies in European Union, European Economic Area.
Use this page to review the official documentation, current status, and the certification or assessment bodies most commonly associated with EN 14825.
Seasonal Efficiency
Defines part-load test points and the calculation of SEER (seasonal energy efficiency ratio) and SCOP (seasonal coefficient of performance).
Real-World Performance
Captures efficiency across a range of outdoor temperatures and load conditions, better reflecting actual seasonal use than single-point ratings.
Regulatory Basis
Provides the metrics used in EU ecodesign minimum requirements and the A–G energy label for air conditioners.
list_alt What It Defines
- Part-load test points (e.g. 100/74/47/21%)
- Reference heating/cooling seasons and climates
- SEER calculation for cooling
- SCOP calculation for heating
- Bivalent and cut-off temperatures for heat pumps
- Backup-heater treatment in SCOP
- Inputs to ecodesign and energy-label classes
Who Needs to Comply?
Manufacturers, test laboratories, and certification bodies determining seasonal efficiency of air conditioners and heat pumps for EU ecodesign and energy-labelling compliance.
Key Requirements
Run Part-Load Tests
Measure performance at the specified part-load conditions and outdoor temperatures using EN 14511 as the full-load reference method.
Calculate SEER and SCOP
Apply the standard's weighting and bin methodology to compute seasonal cooling and heating efficiency for the relevant climate.
Document Assumptions
Record the climate, design conditions, and backup-heater assumptions used so the declared seasonal figures are reproducible.
Declare for Compliance
Use the resulting SEER/SCOP for ecodesign minimum-efficiency checks and the energy-label class.
Implementation Roadmap
Define EN 14825 scope
Identify the seasonal performance rating for air conditioners, chillers and heat pumps in scope, the legal or customer obligations that apply, accountable owners, affected products or services, jurisdictions, suppliers and evidence expectations. Confirm coverage for part-load test points, reference climates, bin hours, SEER, SCOP, backup-heater treatment, bivalent and cut-off temperatures, calculation worksheets and declared seasonal values.
Assess obligations and gaps
Compare current design, operations and documentation against EN 14825. Review part-load test points, reference climates, bin hours, SEER, SCOP, backup-heater treatment, bivalent and cut-off temperatures, calculation worksheets and declared seasonal values, then prioritise gaps by safety, legal exposure, market-access impact, customer commitments, reporting deadlines and assurance readiness.
Implement controls and evidence
Deploy the procedures, technical controls, testing, training, supplier controls, review gates and operating records needed for EN 14825. Maintain part-load test reports, EN 14511 input data, bin calculations, climate assumptions, backup-heater assumptions, SEER/SCOP worksheets, product fiches and certification records as traceable evidence.
Review, verify and maintain
Run management review, internal checks, retesting or independent assessment where appropriate. Refresh the program when products, services, suppliers, standards, regulations, incidents, customer commitments or market-surveillance expectations change.
Compliance Checklist
checklist Scope and accountability
checklist Controls and records
checklist Monitoring and assurance
Penalties & Enforcement
EN 14825 is a voluntary standard, but the SEER/SCOP values it produces are the basis for mandatory ecodesign thresholds and energy labels. Overstated values can trigger enforcement, fines, and withdrawal under those regimes.
Frequently Asked Questions
Who needs EN 14825?
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EN 14825 is relevant to organizations that design, manufacture, import, distribute, operate, certify, test or procure seasonal performance rating for air conditioners, chillers and heat pumps. Exact applicability depends on the product or service scope, jurisdiction, role in the supply chain, customer commitments and the specific obligations triggered by the standard or regulation.
Is EN 14825 certifiable?
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EN 14825 is not a certificate. It provides the method used to substantiate seasonal efficiency declarations for ecodesign, energy labelling and voluntary product certification.
What should a EN 14825 implementation start with?
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Start by defining scope and accountable owners, then map the applicable requirements to existing products, services, systems, suppliers and evidence. A focused gap assessment should identify missing tests, records, procedures, labels, declarations, risk assessments or assurance steps before detailed remediation begins.
What evidence is useful for EN 14825?
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Useful evidence includes part-load test reports, EN 14511 input data, bin calculations, climate assumptions, backup-heater assumptions, SEER/SCOP worksheets, product fiches and certification records. Evidence should be version-controlled, traceable to requirements and owners, retained for the required period and ready for customers, auditors, certification bodies, regulators or market-surveillance authorities.
How often should EN 14825 compliance be reviewed?
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Review it on a planned cycle and whenever products, services, suppliers, manufacturing sites, legal requirements, harmonised standards, test methods, incidents, customer commitments or market access assumptions change. High-risk products and regulated services should also be reviewed after complaints, field failures or regulator guidance.
Official Documentation
Official PDF for EN 14825
Official publication or summary for EN 14825
Official online resource
CEN/CENELEC (European Standardization) guidance and reference material
Implementation toolkit
Templates, guidance, or companion resources for EN 14825