Index A-Z
Print page Add page to my Favorites Send page

Testing of air-to-air heat pumps

 

Illustration: Fransson
Air-to-air heat pumps intended for the Nordic market are continuously tested on behalf of the Swedish Energy Agency’s Testlab and of distributors of these heat pumps. SP and its customers maintain constant contact with the manufacturers of the heat pumps, most of which are manufactured in Asia.

SP’s testing ranges from comprehensive testing of performance aspects such as heat pump capacity, efficiency, sound power level and correct operation of control and ancillary functions, to less comprehensive but more specialised testing such as that of operation under difficult outdoor climate conditions.

 

The following is a list of the most common tests that we perform on air-to-air heat pumps:

  • Capacity and efficiency at full-load and part-load operation, and correct operation of functions, normally in accordance with EN 14511, CEN/TS 14825 and prEN 14825.
  • Operation of defrost functions and safety functions etc., in accordance with EN 14511-4.
  • Sound power levels for indoor and outdoor units at specified settings, e.g. at different fan speeds for the indoor unit or different electrical drive powers for the outdoor unit, in accordance with ISO 3747 and EN 12102.
  • Testing for P-marking in accordance with SPCR 130. The P-mark is SP’s own quality symbol, developed together with the heat pump industry.
  • Calculation of energy savings in accordance with calculation model SP Method 0033, using data from capacity and efficiency testing.
  • Testing and inspection in accordance with other national and international certification systems as required.
  • In addition, SP can also measure most other functions and parameters as required by our customers, such as pressures in refrigerant systems, hot gas temperatures and ECR (Effective Cleaning Rate), which is a method used for testing room air cleaners.

Related Information

See also

EN 14511:2007CEN/TS 14825prEN 14825ISO 3747:2010SS-EN 12102P-mark/SPCR130SP method 0033

Contact Persons

Peter Lidbom

Phone: +46 10 516 55 97

Stefan Thyberg

Phone: +46 10 516 57 91

SP Technical Research Institute of Sweden, Box 857, SE-501 15 Borås Phone +46 10-516 50 00, E-mail info@sp.se