Division Common definitions

F1‘conversion coefficient’ (CC) means a coefficient the value of which is CC = 2.5.

‘gross calorific value’ (GCV) means the total amount of heat released by a unit quantity of fuel when it is burned completely with oxygen and when the products of combustion are returned to ambient temperature; this quantity includes the heat of condensation of any water vapour contained in the fuel and of the water vapour formed by the combustion of any hydrogen contained in the fuel;

‘global warming potential’ (GWP) means the climatic warming potential of a greenhouse gas relative to that of carbon dioxide (CO₂), calculated in terms of the 100-year warming potential of one kilogram of a greenhouse gas related to one kilogram of CO₂. GWP values considered are those set out in Annexes I, II and IV to Regulation (EU) No 517/2014. GWP values for mixtures of refrigerants shall be based on the method presented in Annex IV of the Regulation (EU) No 517/2014;

‘air flow rate’ means the air flow rate in m³/h measured at the air outlet of indoor and/or outdoor units (if applicable) of comfort chillers, air conditioners or heat pumps, and fan coil units at standard rating conditions for cooling, or heating if the product has no cooling function;

‘sound power level’ (L_WA ) means the A-weighted sound power level measured indoors and/or outdoors, at standard rating conditions, and expressed in dB;

‘supplementary heater’ means a heat generator of the air heating product that generates supplemental heat during conditions where the heating load exceeds the heating capacity of the preferred heat generator;

‘preferred heat generator’ means the heat generator of the air heating product that has the highest contribution in the total heat supplied over the heating season;

‘seasonal space heating energy efficiency’ (η_s,h ) means the ratio between the reference annual heating demand pertaining to the heating season covered by an air heating product, and the annual energy consumption for heating, corrected by contributions accounting for temperature control and the electricity consumption of ground water pump(s), where applicable, expressed in %;

‘seasonal space cooling energy efficiency’ (η_s,c ) means the ratio between the reference annual cooling demand pertaining to the cooling season covered by a cooling product, and the annual energy consumption for cooling, corrected by contributions accounting for temperature control and the electricity consumption of ground water pump(s), where applicable, expressed in %;

‘temperature control’ means equipment that interfaces with the end-user regarding the values and timing of desired indoor temperature and communicates relevant data, such as actual indoor and/or outdoor temperature(s), to an interface of the air heating or cooling product such as a central processing unit, thus contributing to the regulation of the indoor temperature(s);

‘bin’ (bin_j ) means a combination of an ‘outdoor temperature (T_j )’ and ‘bin hours (h_j)’, as set out in Annex III, Tables 26, 27 and 28;

‘bin hours’ (h_j ) means the hours per season, expressed in hours per year, at which an outdoor temperature occurs for each bin, as set out in Annex III, Tables 26, 27 and 28;

‘indoor temperature’ (T_in ) means the dry bulb indoor air temperature, expressed in degrees Celsius; the relative humidity may be indicated by a corresponding wet bulb temperature;

‘outdoor temperature’ (T_j ) means the dry bulb outdoor air temperature, expressed in degrees Celsius; the relative humidity may be indicated by a corresponding wet bulb temperature;

‘capacity control’ means the ability of a heat pump, air conditioner, comfort chiller or high temperature process chiller to change its heating or cooling capacity by changing the volumetric flow rate of the refrigerant(s), to be indicated as ‘fixed’ if the volumetric flow rate cannot be changed, ‘staged’ if the volumetric flow rate is changed or varied in series of not more than two steps, or ‘variable’ if the volumetric flow rate is changed or varied in series of three or more steps;

‘degradation coefficient’ ((C_dh ) for heating mode and (C_dc ) for cooling or refrigeration mode) means the measure of efficiency loss due to cycling of the product; if it is not determined by measurement then the default degradation coefficient shall be 0,25 for an air conditioner or heat pump, or 0,9 for a comfort or high temperature process chiller;

‘nitrogen oxides emissions’ means the sum of the emissions of nitrogen monoxide and nitrogen dioxide by air heating products or cooling products using gaseous or liquid fuels, and expressed in nitrogen dioxide, established while providing the rated heating capacity, expressed in mg/kWh in terms of GCV.