Performance measurement at only one measuring point in cooling and heating mode
Prior to 2013, air conditioning units were only rated by their EER and COP and heat pumps only by their COP. EER rated efficiency in cooling mode. COP defined efficiency in heating mode. The values were orientated towards a single operating point – less realistically and disadvantageously for consumers.
The performance data is only recorded at a single measuring point during full-load operation for the COP and EER.
With the ErP Directive:
Optimised performance measurement at four measuring points in cooling and heating mode
The performance data for SEER and/or SCOP is recorded at four different measuring points in line with DIN EN14825. The measuring points are weighted differently according to the temperature curves of the reference climate in Strasbourg, in order to reflect the energy efficiency of the unit under the most realistic conditions possible.
The following are also taken into consideration:
- Thermostat-Off consumption
- Standby consumption
- Crankcase heating
The SCOP value recorded is included in the calculation of the seasonal space heating energy efficiency (ηs
) within Lot 1. Space heaters have to meet certain minimum requirements depending on the energy carrier used. The yardstick for heat pumps is significantly higher than for all other technologies. The energy efficiency of hot water heating (ηwh
) is relevant for the energy efficiency classification in Lot 2.