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RDC - Refrigerated display cabinets
Certification manual
Certification Manual
Documents
Technical Certification Rules

Scope of the programme

The programme scope covers Remote Refrigerated Display Cabinets (RRDC) intended to be used in retail applications and using natural refrigerant R744 (CO2).
Exclusions: Cabinets with wooden parts that affect performance are excluded. Cabinets operated only with other fluids than R744 (CO2) are excluded too.

Definitions

Refrigerated Display Cabinet (RDC): Cabinet cooled by a refrigerating system which enables chilled and frozen foodstuff placed therein for display to be maintained within prescribed temperature limits.

Remote Refrigerated Display Cabinet (RRDC): Refrigerated Display Cabinet connected to a remote refrigerating unit.

Product family:  Group of cabinets in accordance with the standard terminology Annex A of EN ISO 23953-1:2015

M-package temperature class: Classification of M-package temperature according to temperatures of warmest and coldest M-packages during the temperature test according to the table 1 of standard EN ISO 23953-2:2015. For cabinets with night covers and lighting the M-package temperature class is only based on the second test part b) of EN ISO 23953-2:2015 chapter 5.3.2.7.2 with 12 hours day and 12 hours night.

Refrigeration Electrical energy Consumption (REC) [kWh/day]: According to EN ISO 23953-2:2015 chapter 5.3.6.3.3, calculated with the following formula:
RECRemote=(24-tdeft)xHERavgx(Tc-Tmrun)/(0.34xTmrun)

Direct Electrical Energy Consumption (DEC) with 12h lighting [kWh/day]: According to EN ISO 23953-2:2015 chapter 5.3.5.

TEC: for remote cabinets, TEC is the sum of REC and DEC
TECRemote = REC + DEC

Total Display Area (TDA) [m2]: According to EN ISO 23953-2:2015 Annex A rounding all terms in the formula to the second decimal.

Energy Efficiency Index (EEI) : According to regulation (EU) 2019/2024, the Energy Efficiency Index (EEI) means an index number for the relative energy efficiency of a refrigeration appliance with a direct sales function expressed in percentage [%] and rounded to the first decimal place. It is the ratio of AE [in kWh/a] and the reference SAE [in kWh/a] and is calculated as:
EEI=AE/SAE

Annual Energy Consumption (AE): According to regulation (EU) 2019/2024, the Annual Energy Consumption (AE) means the average daily energy consumption Edaily (see §I.3.7) multiplied by 365 (days per year) expressed in kilowatt hour per year [kWh/a] and rounded to two decimal places.
AE=365×𝐸𝑑𝑎𝑖𝑙𝑦

Standard Annual Energy Consumption (SAE): According to regulation (EU) 2019/2024 the Standard Annual Energy Consumption (SAE) means the reference annual energy consumption of a refrigeration appliance with a direct sales function expressed in kilowatt hour per year [kWh/a] with all compartments having the same temperature class and rounded to two decimal places. 
SAE= (𝑀+𝑁×𝑌)×365×𝐶×𝑃

Certified Characteristics

The following performance items are certified:
• Warmest product temperature (laboratory conditions)
• Coldest (chilled) product temperature (laboratory conditions)
• Heat extraction (laboratory conditions) [kWh/24h]
• Evaporating temperature (laboratory conditions)
• Direct Electrical energy Consumption DEC [kWh/24h]
• Refrigeration Electrical energy Consumption REC [kWh/24h]
• Total Electrical energy Consumption TEC [kWh/24h]
• Total Display Area TDA [m²]
• Energy Efficiency Index EEI (laboratory conditions)
• M-package temperature