RT null T1 Energy-Efficient and Climate-Friendly Air Conditioners and Air-to-Air Heat Pumps - Executive Summary A1 United Nations Environment Programme, YR 2026 FD 2026-05 LK https://wedocs.unep.org/handle/20.500.11822/49501 UL https://wedocs.unep.org/handle/20.500.11822/49501 NO This executive summary document provides supporting information for the Model Regulation Guidelines on energy-efficient and climate-friendly air conditioners and air-to-air heat pumps. It explains the purpose and scope of the updated guidelines, including expanded product coverage, testing approaches, and efficiency requirements. The document reviews air conditioner market trends, policy implementation experiences, energy performance requirements, cost-effectiveness of multi-split variable refrigerant flow systems, and improvements in testing methods. It presents analyses based on market data, performance databases, technical studies, and referenced standards to describe developments in energy efficiency regulations, product performance, and evaluation methods across different regions NO https://united4efficiency.org/resources/model-regulation-guidelines-for-energy-efficient-and-climate-friendly-air-conditioners-and-air-to-air-heat-pumps/ DS UN Environment Document Repository RD Sep 19, 2026