本标准涵盖使用分布式制冷剂技术的匹配可变制冷剂流量多联机空调和多联机热泵，其制冷和制热能力为12000 Btu/h[3508 W]至300000 Btu/h[90000 W]的室外机和5000 Btu/h[1000W]至60000 Btu/h[20000 W]的室内机。每台室内机都设计用于调节单个区域。

This standard covers matched variable refrigerant flow Multi-Split Air Conditioners and Multi-Split Heat Pumps using distributed refrigerant technology with cooling and heating capacities for outdoor units from 12,000 Btu/h [3508 W] to 300,000 Btu/h [90,000 W] and indoor units from 5,000 Btu/h [1,000W] to 60,000 Btu/h [20,000 W]. Each indoor unit is designed to condition a single zone.