AHRI 1230 (I-P): Performance Rating of Variable Refrigerant Flow (VRF) Multi-split Air-conditioning and Heat Pump Equipment

Standard Scope

This standard establishes definitions, classifications, test requirements, rating requirements, determination of published ratings, operating requirements, marking and nameplate data, conformance conditions, and minimum data requirements for published ratings and calculations for variable refrigerant flow (VRF) multi-split air-conditioners and heat pumps.

AHRI Standard 1230 applies to VRF multi-split air-conditioners and multi-split heat pumps using distributed refrigerant technology, including VRF water-source heat pump systems of any cooling capacity and VRF air-source systems with cooling capacity ≥ 65,000 Btu/h, as defined in Section 3 and referenced as the basic model.

If this standard is used to demonstrate regulatory compliance, stakeholders shall abide by all published requirements applicable to the regulated product. For example, for products that contain one or more design characteristics that either prevent testing according to this standard or cause this standard to evaluate the equipment in a manner unrepresentative of the equipment’s true energy consumption characteristics, DOE requires the manufacturer submit a petition for waiver that includes an alternative method of test.

This standard applies to VRF systems defined in Section 3.2.47.


This standard does not apply to the rating and testing of:

∙ Individual assemblies, such as separate condensing units or indoor units;

∙ Air-conditioners and heat pumps, with capacities less than 65,000 Btu/h as defined in AHRI 210/240;

∙ Water-source heat pumps (other than multi-split systems) as defined in AHRI/ASHRAE/ISO 13256-1 (RA 2012);

∙ Unitary air-conditioners and unitary heat pumps as defined in AHRI 340/360, with capacities ≥ 65,000 Btu/h;

∙ Units equipped with desuperheater/water heating devices as defined in AHRI 470; and

∙ Commercial and industrial condensing units with a capacity greater than 135,000 Btu/h as defined in AHRI 365 (I-P).

Energy Source

AHRI Standard 1230 applies only to electrically operated, vapor compression refrigeration systems.

Free Download

© 2023, by Air-Conditioning, Heating and Refrigeration Institute