Testing of heat pump
The following trends are currently observed:
- The dominant ground source for heat pumps is and will remain in the near future;
- The fastest-growing segment of the heat pump market are pumps dedicated to domestic hot water (in this category, two-digit increases are recorded);
- There is a growing interest in high power heat pumps for commercial, industrial and heating applications. These pumps usually use geothermal or hydrothermal energy.
For standardization reasons, we distinguish the following types of heat pumps:
- heat pumps with electrically driven compressors for space heating – CO (PN-EN 14511);
- heat pumps for the preparation of domestic hot water – DHW (PN-EN 16147);
- heat pumps with electrically driven compressors such as ground (direct evaporation) / water (cooling) for space heating -CO (PN-EN 15879).
(1) Tests are conducted to determine the energy characteristics
1.1 Testing of heat pumps with electrically driven compressors for space heating according to EN 14511:
- Heating/cooling capacity,
- Electric power consumption,
- Heating coefficient of performance COP
- Energy Efficiency Ratio EER
1.22 Testing of heat pumps with electrically driven compressors of the ground (direct evaporation)/water (refrigerant) type for space heating, according to PN-EN 15879-1:
- Heating/cooling capacity,
- Electric power consumption,
- Heating coefficient of performance COP
- Energy Efficiency Ratio EER
1.3 Testing of heat pumps with electrically driven compressors for domestic hot water preparation (according to EN 16147):
- Warm-up time,
- Determination of standby power consumption,
- Determination of useful energy,
- Determination of COP (coefficient of performance),
- Electricity consumption,
- Determination of reference hot water temperature and maximum hot water volume.
- Determination of seasonal heating efficiency index SCOPDHW,
- Determination of seasonal energy efficiency of space heating ηs;
A heat pump for domestic hot water preparation is, according to EN 16147, a heat pump as defined in EN 14511-1, connected to or with a hot water storage tank.
1.4 Testing of heat pumps with electrically driven compressors for space heating and cooling at partial load conditions and calculation of seasonal performance according to PN-EN 14825 and Commission Regulation (EU) No. 813/2013 of 2 August 2013, Commission Regulation (EU) No. 811/2013 of 18 February 2013, European Parliament and Council Directive 2009/125/EC
- Heating efficiency at partial load conditions
- Determination of the seasonal heating efficiency ratio SCOP,
- Determination of the seasonal energy efficiency ratio of space heating ηs,
- Determination of the seasonal cooling efficiency ratio SEER
2. Performance testing of heat pumps
according to the requirements of EN 14511-4
- Testing of the application range specified by the manufacturer
- Test with shutdown of heat transfer fluid flow
- Test with total loss of electric power supply
- Test on defrosting system
- Evaluation of condensation drainage and casing sweating test
3. Tightness and durability testing of heat pump installations
- Testing according to PN-EN 378-2, PN-EN 14276-1, PN-EN 14276-2
- Tests for conformity with the PED directive
Refrigeration R&D Centre “COCH” in Cracow is a notified body within the scope of the PED 2014/68/EC directive. The identification number assigned to the COCH certification body by the European Commission is 1462.
4. Acoustic and noise testing
Acoustic tests complement our offer of comprehensive tests of refrigeration equipment and heat pumps (among others, tests for obtaining the European quality mark KEYMARK). We perform measurements of the A-weighted sound pressure level, as well as determine the A-weighted sound power level in selected measurement conditions specified in the PN-EN 12102-1:2018-03 (as the only company in Poland), PN-EN 12102-2:2019-06, PN-EN ISO 3744:2011 and PN-EN ISO 3746:2011 standards.
Accredited testing refers to measurements for equipment such as air conditioners, liquid chillers, heat pumps, industrial process chillers and dryers with electrically driven compressors, heat pump water heaters and other machinery and equipment.
5. Safety testing of electrical household and similar equipment - heat pumps, air conditioners and dehumidifiers
These tests complement the testing of equipment such as electric heat pumps, air conditioners and dehumidifiers.
These tests focus on determining and evaluating the characteristics of the equipment in order to classify it as safe to operate. This includes tests of the unit’s operation under controlled conditions and abnormal conditions with overloading of the compressor motor and fan, and electrical circuits. In addition, mechanical strength, resistance to high temperatures, use of components, correctness of grounding connections, etc. are also assessed.
6. KEYMARK for heat pumps - HP KEYMARK
KEYMARK is the European certification mark indicating compliance of products and services with European standards. While the CE marking indicates compliance with minimum legal requirements, KEYMARK provides the consumer with a real added value: verified and certified compliance with uniform European Quality Standards.
A product can only be marked with KEYMARK if it has been previously tested and certified by a neutral, independent and competent body. The factory inspection and Initial Type Testing (ITT), in addition to regular maintenance, is an essential part of the KEYMARK procedure. The Heat Pump KEYMARK granted in one country will be respected in all the countries participating in the scheme.
7. Other tests
The laboratory also performs other non-standard tests, e.g. in thermo-climatic chambers or other tests within the available research capabilities. It is also possible to design and perform new test stands for the needs of specific tests, according to the arrangements with the customer.
Contact
-
COCH Refrigeration R&D Center in Krakow
Juliusza Lea 116,
30-133 Kraków, Poland -
mgr inż. Dorota Niedojadło
- laboratory manager -
+48 12 637 08 57
+48 667 600 635
+48 503 021 131 - laboratorium@coch.pl