Designing a refrigeration unit calls for precise selection of components that meet both functional and regulatory requirements. The key groups of parts are set out below.

1. The refrigeration circuit

  • Compressor – selected for the required capacity, certified to EN 12900 and EN 60335,
  • Condenser – finned or microchannel, compliant with EN 13215,
  • Evaporator – selected for the evaporating temperature,
  • Refrigerant – natural refrigerants preferred: R290 (propane) or R744 (CO₂), compliant with Reg. 2024/573.

2. Electrical parts and controls

  • EC fan motors (Reg. 2019/1781, class IE3+),
  • controllers and sensors with RS485 support,
  • LED modules and power supplies compliant with EN 60335.

3. Lighting

  • LED modules rated at ≥120 lm/W,
  • class VI power supplies meeting ECODESIGN standards.

4. Housing and structural parts

  • insulated doors and gaskets (EN 12150, EN 14285),
  • hinges, handles and runners in corrosion-resistant AISI-304,
  • components compliant with Reg. 1935/2004 (food contact).

5. Additional components

  • condensate evaporation systems,
  • ventilation and adjustable feet.

Choosing the right components ensures compliance with EU standards, energy efficiency and ease of assembly, and lowers the total cost of ownership.