Single-phase non-ducted room air-conditioner (not being second-hand goods) having a cooling capacity of -

• 8.8 kW or lower, in the case of casement or window type air-conditioner;
• 10 kW or lower, in the case of split type (inverter) air-conditioner; or
• 17.6 kW or lower, in the case of split type (non-inverter) air-conditioner.

Single-phase non-ducted room air-conditioner means an encased assembly or assemblies of one or more evaporators, compressors and condensers, designed to be used as a permanently-installed piece of equipment to provide conditioned air to any enclosed space. It includes a prime source of refrigeration for cooling and dehumification and may include other means for dehumidifying, circulating and cleaning the air.

Casement or window type air-conditioner means an assembly of components of a refrigeration system fixed on a common mounting to form a single unit.

Split type air-conditioner means an assembly of components of a refrigeration system fixed on 2 or more mountings to form a matched functional unit.

Split type (non-inverter) air-conditioner means a split type air-conditioner that employs technologies that vary the output of the compressor by start-stop operation.

Split type (inverter) air-conditioner means a split type air-conditioner that employs technologies that vary the output of the compressor, by means other than start-stop operation.

Single-phase refrigerator (not being second-hand good) with an adjusted volume of up to 900 litres.

Single-phase refrigerator means an assembly consisting of a thermally insulated cabinet for the storage and preservation of foodstuffs above 0°C (32°F) and a refrigerating unit operating on the vapour compression principle and arranged to extract heat from within the cabinet, whether or not with one or more freezer compartments.

The adjusted volume of the refrigerator or V_{adj tot} is defined as the sum of the adjusted volumes of the refrigerator compartments. The adjusted volume of a compartment is the product of the rated volume of that compartment with the corresponding volume correction factor (K) found in the following table:

The compartment types are defined in accordance with Section 3.3 of the International Standards Organisation standard ISO 15502:2005.