AHRI 1230-2014

Performance Rating of Variable Refrigerant Flow (VRF) Multi-Split Air-Conditioning and Heat Pump Equipment (with Addendum 1)

This standard covers matched variable refrigerant flow Multi-split Air Conditioners and Multi-split Heat Pumps using distributed refrigerant technology as defined in Section 3 of this standard. This standard applies to variable refrigerant flow multi-split systems consisting of the following matched components: a) an outdoor unit with single or multiple compressors or variable capacity compressor or with a variable speed drive; b) indoor unit(s) that have a coil, air movement device intended for single zone air distribution, and a temperature sensing control; and c) a zone temperature control device. The multi-split systems covered in this standard are Variable Refrigerant Flow (VRF) Multi-Split Systems and Heat Recovery (VRF) Multi-Split Systems. Included are multi-split, matched system air conditioners and Heat Pumps irrespective of their type of electric power source, type of refrigeration cycle, or secondary fluid (e.g. air-to-air or water-to-air).