3. Reversible heat pumps with chilled or hot water terminals
3.1 Heat pumps (production)
3.1.1 Air-to-water aerothermal heat pump
In the 2010s, heat pumps stopped working as soon as the temperature dropped below – 5°C; today, most heat pumps still operate at – 15°C, or even – 25°C.
This was a problem because users of the special EDF, EJP or TEMPO tariffs could not use their heat pump when the tariff was most expensive, forcing them to have a backup boiler. Don't forget that the coefficient of performance drops when the temperature is low....
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Reversible heat pumps with chilled or hot water terminals
Air handling units
Standards and norms
- Ergonomics of thermal environments – Analytical determination and interpretation of thermal comfort by calculating PMV and PPD indices and local thermal comfort criteria - NF EN ISO 7730 - 03-06
- Air conditioners, liquid chillers and heat pumps with electrically driven compressors for space heating and cooling – Testing and determining part-load characteristics and calculating seasonal performance [cancelled July...
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