Energy-Efficient and Climate-Friendly Air Conditioners and Air-to-Air Heat Pumps - Model Regulation Guidelines

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dc.contributor.approvalRecordUNEP Publication Board
dc.contributor.authorUnited Nations Environment Programme
dc.contributor.organizationClimate Change Division
dc.contributor.otherHoluj, Brian
dc.contributor.otherPitarch, Miquel
dc.contributor.otherBlake, Patrick
dc.contributor.otherPark, Won Young
dc.contributor.otherShah, Nihar
dc.date.accessioned2026-04-30T07:56:57Z
dc.date.issued2026-04
dc.date.submitted2026-04-30
dc.descriptionThis technical guideline document provides practical guidance for governments and regional organisations to design and implement energy efficiency regulations for air conditioners and air-to-air heat pumps, one of the fastest-growing electricity-consuming product groups in developing and emerging economies. It addresses Minimum Energy Performance Standards, energy labels, and refrigerant-related requirements to support improved energy efficiency and climate performance. The updated 2026 edition expands the scope of the 2019 version to include multi-split systems, such as variable refrigerant flow systems, and ducted split systems with cooling capacities up to 70 kilowatts. It introduces seasonal performance metrics, including Cooling Seasonal Performance Factor, Annual Performance Factor, and Heating Seasonal Performance Factor, which better represent annual operation and part-load behaviour. The Guidelines apply a climate-sensitive approach using climate groups and outdoor temperature bin hours to help countries adapt regulatory design to local climatic conditions. The recommendations aim to balance ambitious efficiency improvements with product availability and affordability. An accompanying Supporting Information Document provides additional technical background and justification for the recommendations, including details on product scope, performance metrics, and proposed efficiency levels. Countries and regions can assess potential savings from these recommendations through the United for Efficiency Country Savings Assessments, which are available for 156 countries.en
dc.description.reviewStatuspeer-reviewed
dc.description.statusAdopted
dc.formatpdf
dc.identifier.doihttps://doi.org/10.59117/20.500.11822/49483
dc.identifier.isbn978-92-807-4280-0
dc.identifier.otherCLI/2762/PA
dc.identifier.urihttps://wedocs.unep.org/handle/20.500.11822/49483
dc.languageEnglish
dc.page.number63 p.
dc.relation.TableOfContentsAcknowledgements
dc.relation.TableOfContentsAbout United for Efficiency
dc.relation.TableOfContentsAbbreviations
dc.relation.TableOfContentsForeword
dc.relation.TableOfContents1. Scope of Covered products
dc.relation.TableOfContents2. Terms & Definitions
dc.relation.TableOfContents3. Test Methods and Energy Efficiency Performance Calculation
dc.relation.TableOfContents4. Minimum Energy Efficiency Requirements
dc.relation.TableOfContents5. Functional Performance
dc.relation.TableOfContents6. Refrigerant Requirements
dc.relation.TableOfContents7. Labelling Requirements
dc.relation.TableOfContents8. Entry into Force
dc.relation.TableOfContents9. Conformity Assessment
dc.relation.TableOfContents10. Market Surveillance
dc.relation.TableOfContents11. Revision
dc.relation.TableOfContentsAnnex 1. Minimum Performance Requirements
dc.relation.TableOfContentsAnnex 2. Performance Grade Requirements
dc.relation.TableOfContentsAnnex 3. (Informative) Climate Groups and Countries
dc.relation.TableOfContentsAnnex 4. Outdoor Temperature Bin Hours
dc.relation.TableOfContentsAnnex 5. (Informative) Performance Specifications for a Super-Efficient Air Conditioner
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 IGOen
dc.rights.accessLevelPublic
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/igo/
dc.subjectSDG 12 - Responsible Consumption and Production
dc.subject.sdgSDG 7 - Affordable and Clean Energy
dc.subject.sdgSDG 9 - Industry, Innovation and Infrastructure
dc.subject.sdgSDG 11 - Sustainable Cities and Communities
dc.subject.themeclimate
dc.subject.themeair conditioning
dc.subject.themeenergy
dc.subject.themeheat pump
dc.subject.themeenergy efficiency
dc.subject.themerefrigerant
dc.subject.themeglobal warming
dc.subject.themeindustry
dc.subject.themecooling
dc.titleEnergy-Efficient and Climate-Friendly Air Conditioners and Air-to-Air Heat Pumps - Model Regulation Guidelinesen
dc.typeTechnical guideline
wd.identifier.institutionsUnited for Efficiency (U4E)

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