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Room Air Conditioners
Explanation of Terms

Information Provider • The company/individual (specified person) who has submitted the specified information in respect of a product model under section 6 of Energy Efficiency (Labelling of Products) Ordinance, Cap 598.
Reference Number • The number assigned to a product model by the Director of Electrical & Mechanical Services under section 8 of the Energy Efficiency (Labelling of Products) Ordinance, Cap 598.
Year • The "Year" means the year in which the reference number is assigned or, where the energy efficiency grading is calculated in accordance with the new calculation method under section 12 of the Energy Efficiency (Labelling of Products) Ordinance, the year in which the new calculation method takes effect.
Brand • The particular name used by a manufacturer or importer to identify a product range.
Model • The particular name and/or number used by a manufacturer or importer to identify an individual product within a brand.
Energy Efficiency Grade Cooling (1 to 5) • The cooling energy efficiency grade calculated in accordance with the latest edition of Code of Practice on Energy Labelling of Products. Grade 1 being the most efficient and Grade 5 being the least efficient.
Annual Energy Consumption Cooling (kWh) • The annual energy consumption (cooling) calculated in accordance with the latest edition of Code of Practice on Energy Labelling of Products.
Category •
Category 1
A single package type room air conditioner with cooling function only
Category 2
A single package type room air conditioner with both cooling and heating functions.
Category 3
A split type room air conditioner with cooling function only.
Category 4
A split type room air conditioner with both cooling and heating functions.
Rated Power Consumption Cooling (kW) • The power input of a room air conditioner running at specific cooling capacity as determined and declared by the manufacturer or importer of the room air conditioner in accordance with the standard and requirements specified in the Code of Practice.
Cooling Capacity (kW) • Means the measured amount of sensible and latent heat that a room air conditioner can remove from the conditioned space in a defined interval of time as presented in the test report submitted to the Electrical & Mechanical Services Department for assignment of reference number.
Rated Cooling Capacity (kW) • The cooling capacity of a room air conditioner as determined and declared by the manufacturer or importer of the room air conditioner in accordance with the standard and requirements specified in the latest edition of
Refrigerant • Medium of heat transfer, which passes through the closed refrigeration circuit.
Place of Manufacture • The place/country in which the room air conditioner is manufactured.
Product being Supplied by Information Provider • Whether the Information Provider still supplies the product model in Hong Kong.
Supply Information Last Updated Date • The date on which the Information Provider notified the Electrical & Mechanical Services Department on whether he still supplies the product model in Hong Kong.
Inverter • Means the capacity output of the room air conditioner can be changed.
Cooling Seasonal Performance Factor (CSPF)  • Means the ratio of the total annual amount of heat that the equipment can remove from the indoor air when operated for cooling in active mode to the total annual amount of energy consumed by the equipment during the same period.
Energy Efficiency Grade Heating (1 to 5)  • The heating energy efficiency grade calculated in accordance with the latest edition of Code of Practice on Energy Labelling of Products. Grade 1 being the most efficient and Grade 5 being the least efficient.
Annual Energy Consumption Heating (kWh)  • The annual energy consumption (heating) calculated in accordance with Code of Practice on Energy Labelling of Products 2018 edition.
Heating Capacity (kW)  • The amount of sensible and latent heat that a room air conditioner can add to the conditioned space in a defined interval of time.
Rated Power Consumption Heating (kW)  • The power input of a room air conditioner running at specific heating capacity as determined and declared by the manufacturer or importer of the room air conditioner in accordance with the standard and requirements specified in the Code of Practice.
Rated Heating Capacity (kW)  • The heating capacity of a room air conditioner as determined and declared by the manufacturer or importer of the room air conditioner in accordance with the standard and requirements specified in the latest edition of Code of Practice on Energy Labelling of Products.
Heating Seasonal Performance Factor (HSPF)  • The ratio of the total annual amount of heat that the equipment can add to the indoor air when operated for heating in active mode to the total annual amount of energy consumed by the equipment during the same period.