EME Newsletter MEssage #1/2022

NEWSLETTER
TECHNICAL PAPER
information for following
the testing standards while
restricting the intervention of
the manufacturer not allowing
any changes to be made to the
unit that are not present when
operating in the field. This could
be visible in the results of the
2020 surveillance campaign
where 7% (Figure 6) of the
tested seasonal efficiencies has
been rerated, even though that
the manufacturer provided the
setting parameters for the IAC’s
as allowed by the standards.
Conclusion
IAC and AC have a different
type of compressor and though
different functionality. According
to the reviewed established test
procedure, IAC’s are currently
tested at fixed compressor
speeds. To achieve that, the
current test standards allow
IAC manufacturer to lock the
compressor speed for a desired
rated capacity. This could be
done by setting the parameters
of the unit on each of the
targeted capacity tests. This
requires an allowed intervention
of the manufacturer when
testing these units which opens
the procedure to interference.
The EU and Canada are working
on other test methods to
prevent this intervention, in the
meanwhile using a third-party
certification body such as ECC
proved to be an efficient method
to perform the test while
guaranteeing the minimum
required intervention of the
manufacturer.
References
[1 Grand View Research, “Air
Conditioning Systems Market
Size, Share & Trends Analysis
Report By Type (Unitary, Rooftop,
PTAC), By Technology (Inverter,
Non-inverter), By End-use, By
Region, And Segment Forecasts,
2021 - 2028,” 2021. Accessed:
Apr. 01, 2022.
[Online]. Available: https://www.
grandviewresearch.com/industryanalysis/air-conditioning-systemsindustry#:~:text=Inverter%20
segment%20dominated%20the%20
air,share%20of%2065.6%25 %20
in%202020.
[2] Ankur Sharma, “Room air
conditioners Focus shifting
to inverters,” Motilal Oswal,
Apr. 2017. https://www.
motilaloswal.com/site/rreports/
html/636288151341015916/index.
htm (accessed Apr. 01, 2022).
[3] S. Mavuri, “Testing inverter type air
conditioners for field performance,”
Ecolibrium, pp. 44–49, 2014,
[Online]. Available: www.gzlans.
com
[4] H. Hui, Y. Ding, and M. Zheng,
“Equivalent Modeling of Inverter
Air Conditioners for Providing
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IEEE Transactions on Industrial
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1413–1423, Feb. 2019, doi: 10.1109/
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[5] S. Mavuri, “Field Behaviour of
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nternational Journal of Application
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[6] A. Almogbel, F. Alkasmoul, Z.
Aldawsari, J. Alsulami, and A.
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consumption between non-inverter
and inverter-type air conditioner in
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vol. 4, no. 2, pp. 191–197, Dec. 2020,
doi: 10.1007/s41825-020-00033-y.
[7] G. Du, S. Zhou, Y. Zhou, and X.
Liu, “ScienceDirect ScienceDirect
Design of Performance Testing
System for HVAC Based on
Enthalpy Difference Method,”
Procedia Engineering, vol. 205, pp.
2156–2163, 2017, doi: 10.1016/j.
proeng.2017.10.035.
[8 R. Carmichael, S. Widder, N.
Baker, and J. Dewitt, “Domestic
Air Conditioner Test Standards and
Harmonization,” Washington, Mar.
2020.
[9] “AC | Eurovent Certita
Certification.” https://www.
eurovent-certification.com/
en/third-party-certification/
certification-programmes/ac
(accessed Apr. 04, 2022).
[10]“Eurovent Certita Certification.”
https://www.eurovent-certification.
com/en/ (accessed Apr. 04, 2022).
[11]“Technologies | Daikin Reefer.”
https://www.ref.daikin.com/zestia/
technologies (accessed Apr. 01,
2022).
Webinar on Energy Efficiency
of Air Handling Units in Hot
and Humid Climates
On 28 April 2022, Eurovent, Eurovent Middle East and Eurovent Certita Certification
hosted a joint webinar on energy efficiency of Air Handling Units in hot and humid
climates, introducing the new energy label by Eurovent for AHUs for such conditions.
Watch the recordings on our YouTube channel.
www.eurovent.me MAY 2022 VOL. 01