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3. Determine system output – Heat balance
Calculating the heat balance of an air-conditioning system makes it possible to determine the system's capacity in summer and winter, based mainly on two criteria:
1) internal heat gains from sources inside the room: number of occupants, lighting, household appliances; these gains are relatively constant depending on the time of day. It is important to take this into account in summer;
2) external inputs: sunlight and heat or cold inputs through walls, openings (glazing), roof, ceiling, floors and air renewal. These inputs depend on insulation, room orientation and size, outside temperature variations and building location.
The heat balance must be carried out by a professional. It is very important, because an installation that is too weak generates high electricity consumption, and one that is too powerful is too...
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Determine system output – Heat balance
Conclusion
Standards and norms
- Refrigeration systems and heat pumps – Safety and environmental requirements – Part 1: Basic requirements, definitions, classification and selection criteria – Refrigeration systems and heat pumps – Safety and environmental requirements – Part 1: basic requirements, definitions, classification and selection criteria - NF EN 378-1 - Avril 2017
- Air conditioners, liquid chillers and heat pumps with electrically driven...
Regulations
Commission Regulation (EC) No 1516/2007 of December 19, 2007 establishing, pursuant to Regulation (EC) No 842/2006 of the European Parliament and of the Council, standard leakage checking requirements for stationary refrigeration, air conditioning and heat pump equipment containing certain fluorinated greenhouse gases.
Regulation (EU) No 517/2014 of the European Parliament and of the Council of 16...
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