Energy Efficiency of Small and Large Air Conditioners · MEPS for small ACs has been slightly...

Energy Efficiency of Small and Large Air

Conditioners By

Eng. Zayed Albagami

Organised by

Buildings represented ~30% of the primary energy

consumed with ~80% of electric consumption in 2015

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Energy Efficiency of Small Air Conditioners 2

Scope

•Single-package window type, single split-system non-ducted air conditioners using air-cooled

condensers, single split-system ducted air-conditioners using air-cooled condensers, and heat pumps

using air-cooled condensers or using electric resistance for residential, commercial and industrial

sector as applicable

•Same scope as the previous standard with the exception of capacity modification (up to and including

65,000 Btu/h (19 kW) instead of 70,000 Btu/h).

‣Air conditioner with capacities exceeding 65,000 Btu/h are covered in the Large AC standard

(SASO 2874/2016)

Exclusions

•Units covered by SASO 2874 : 2016 ‘’Air Conditioners – Minimum Energy Performance

Requirements and Testing Requirements’’ standard

•Evaporative coolers

•Mobile (windowless) and portable units with exhaust air duct

•Individual assemblies not constituting a complete refrigeration system such as condensing

units for separate use

•Models that have been granted exemption by SASO due to specific design for applications

such as air-conditioners that are not intended for human comfort

The new small AC energy efficiency (EE) labels will have

7 classes

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Bar ColorEnergy Efficiency

Class (Arabic)

Equivalent Energy

Efficiency Class

EER limits (rated value)

(Btu/h)/W at T1

Dark green أ A EER ≥ 16.5

Green ب B 16.5> EER ≥ 14.5

Light green ج C 14.5> EER ≥ 13.0

Yellow د D 13.0> EER ≥ 11.8

Orange هـ E 11.8> EER ≥ 10.8

Dark orange و F 10.8> EER ≥ 9.80

Dark red ز G 9.80> EER ≥ 9.0

Note: For labelling purposes, the Arabic letters shall be used. The equivalent English version is only provided for informational purposes.

Small AC MEPS requirements will be based on rated

values according to the acceptance criteria

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Acceptance

criteria

• Tested power ……………………….....................................≤ 1.05 x rated power

• Tested cooling capacity …………….…..........…. ≥ 0.95 x rated cooling capacity

• Tested EER …………………………….….….≥ MEPS and ≥ 0.95 x rated EER

• The standard for tests is defined according to the type of AC in Clause 4

• Tested COP ………………………………….….……………...≥ 0.95 x rated COP

• Tested voltage …………….......... (refer to the standard mentioned in Clause 2)

• Test Frequency …………………...………………………..……...…….60 Hz ±2%

• Testing conditions (T1) …………..(refer to the standard mentioned in Clause 2)

• Testing conditions (T3) …………. (refer to the standard mentioned in Clause 2)

MEPS for small ACs has been slightly changed since the

last standard update

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Rated Cooling Capacity (CC) (BTU/h) at T1

MEPS

T1 EER* T3 EER**

Window AC

CC ≤ 24,000 9.8 7.0

24,000 < CC ≤ 65,000 9.0 6.20

Split AC CC ≤ 65,000 11.8 8.30

Previously split in 2:CC ≥ 24,000

and18000 < CC ≤ 24000

Previously 11.5Previously 8.5

* External testing temperature at 35oC

** External testing temperature at 46oC

There will be 2 Small AC energy efficiency labels based

on available functions

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COOLING & HEATING LABEL COOLING ONLY LABEL

Energy Efficiency of Large Air Conditioners

A team of ~60 representatives from major AC manufacturers, importers,

distributors, and retailers developed the standard for large HVAC

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The team agreed on a specific product scope, testing methods, MEPS

and enforcement dates through its consensus-driven approach

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Product scope

Testing methods

MEPS and

Enforcement

•6 main product categories fall within the product scope:-Electrically operated air conditioners

-Condensing units

-Chillers

-Absorption chillers

-Electrically operated variable refrigerant flow (VRF) air conditioners

-Close control air conditioners and condensing units serving computer rooms

•After extensive discussion, the technical team decided to adopt AHRI and ISO testing

standards for all the above categories

•SASO approved the final decision on testing standards

•Enforcement date and minimum MEPS were also unanimously agreed

upon by all participants and then validated by SEEP leadership

(Proposed date September 2017)

Electrically operated air conditioners – air cooled9

Electrically operated air conditioners – water cooled10

Electrically operated air conditioners – evaporative cooled10

Condensing units – air cooled10

Condensing units – water cooled10

Condensing units – evaporative cooled10

Chillers – air cooled10

Chillers – water cooled electrically operated, positive displacement10

Chillers – water cooled electrically operated, centrifugal10

Absorption chillers – air cooled absorption, single effect10

Absorption chillers – water cooled absorption, single effect10

Absorption chillers – absorption double effect, indirect fired10

Absorption chillers – absorption double effect, direct fired10

VRF multi split air conditioners – air cooled10

VRF multi split air conditioners – heat pumps10

VRF multi split air conditioners – water cooled10

Close control air conditioners – air cooled10

Close control air conditioners – water cooled10

Registration of the large AC product4

Thank You for attending this presentation

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