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REGULATION ON ENERGY LABELLING AND MINIMUM 
ENERGY PERFORMANCE REQUIREMENTS  
FOR SMALL CAPACITY AIR- CONDITIONERS  2  Contents  
1. SCOPE AND OBJECTIVE  .................................................................................................................................. 3 
2. NORMATIVE  REFERENCES ............................................................................................................................ 4 
3. TERMS AND  DEFINITIONS  ............................................................................................................................. 5 
4. REGISTRATION REQUIREMENTS  ................................................................................................................. 6 
5. MEPS  .................................................................................................................................................................... 8 
6. NAME PLATE AND INSTRUCTION SHEET OR MANUAL  ......................................................................... 9 
7. SEASONAL ENERGY EFFICIENCY RATIO (SEER) CLASSIFICATION  .................................................. 10 
8. ENERGY LABELLING REQUIREMENTS  ..................................................................................................... 12 
 3   
REGULATION ON ENERGY LABELLING AND MINIMUM 
ENERGY PERFORMANCE REQUIREMENTS  
FOR SMALL CAPACITY AIR-CONDITIONERS  
 
 
1. SCOPE AND OBJECTIVE 
1.1 Scope  
This regulation specifies the Minimum Energy Performance Standard (MEPS) 
and the energy labelling requirements for air conditioning units and heat pumps used in residential, commercial and industrial sectors with nominal ca pacities 
less than or equal to 65,000 Btu/h.  
The following types of air conditioning or heat pumps  units are included within the scope 
of this regulation:  
1. Single -package units  of window  type  
2. Single split- system non- ducted units  using air -cooled condensers  
3. Single split- system ducted units using air -cooled  condensers  
4. Units using electric resistance heaters  
The following units are excluded from the scope of this regulation:  
1. Evaporative coolers  
2. Mobile (windowless) and portable units with exhaust air  duct 
3. Individual assemblies not constituting a complete refrigeration system such as condensing units for separate use 
4. Air conditioners that are not intended for human comfort  
5. 100% solar energy powered air conditioning systems 
 
1.2 Objective  
The objective of this regulation is to:  
a) Provide detailed information on the performance and energy labeling requirements which an air -conditioning appliance has to meet in order to 
carry a valid energy efficiency label;  and 
b) Provide detailed information on the performance requirements which an  
air-conditioning appliance has to meet in order to meet minimum energy 
performance standard  requirements.  
 4  2. NORMATIVE  REFERENCES  
Updated editions of the following normative references are applied (Including any changes 
on these  normative references).  
 
2.1 GSO ISO 5151 “Non- ducted air conditioners and heat Pumps - Testing and 
rating for Performance”.  
2.2 GSO ISO 13253 “D ucted air -conditioners and air -to-air heat Pumps - Testing 
and rating for Performance”.  
2.3 GSO ISO 16358- 1 Air -Cooled Air Conditioners and Air -To-Air Heat Pumps 
— Testing and Calculating Methods for Seasonal Performance Factors — Part 
1: Cooling Seasonal Performance Factor. 
2.4 ISO 16358- 1:2013/Cor 1:2013 Air -Cooled Air Conditioners and Air -To-Air 
Heat Pumps — Testing and Calculating Methods for Seasonal Performanc e 
Factors — Part 1: Cooling Seasonal Performance Factor — Technical 
Corrigendum 1 
2.5 ISO 16358- 1:2013/Amd 1:2019 Air -Cooled Air Conditioners and Air -To-Air 
Heat Pumps — Testing and Calculating Methods for Seasonal Performance 
Factors — Part 1: Cooling Sea sonal Performance Factor — Amendment 1 
 5  3. TERMS AND DEFINITIONS  
For the purposes of this regulation, the terms and definitions given in 
references mentioned in sub- clauses 2.1 and 2.2 and those below are 
considered.  
3.1 Ducted  air conditioners  
An air conditioner model configuration where the indoor side is situated remote  
to the space to be conditioned. The conditioned air is supplied or extracted via 
a duct. 
 
3.2 Non-ducted air  conditioner  
An air conditioner model configuration where the indoor side is situated partly 
or wholly within the space to be conditioned. The conditioned air is supplied and extracted directly to and from the conditioned space.  
 
3.3 Rated  capacity  
The nominal rated capacity claimed by the manufacturer of an air conditioner model determined as follows, as applicable:  
(a) Rated total cooling c apacity as claimed by the manufacturer for 
temperature condition T1. (Units: Btu/h).  
(b) Rated heating capacity as claimed by the manufacturer for indicated heating capacity test conditions specified in the normative references in clause (2). (Units : W). 
The rated capacity appears on the energy label as ‘Capacity Output’ (heating 
and/or cooling as applicable. (Units: Btu/h). 
 
3.4 Rated  power  
Effective power input of the air conditioner model as claimed by the 
manufacturer during the determination of rated cooling capacity and rated heating capacity, as applicable. (Units: W or kW.)  
 
3.5 Split  system  
An air conditioner with separate indoor and outdoor components that are connected with refrigerant piping. The indoor unit usually lies within the conditioned space and may be installed or portable/mobile. 
 
3.6 Star rating  
The number of stars displayed on the energy label. Available stars are between 6  a minimum of one and a maximum of six. It is considered as an indication of 
the claimed energy efficiency of a model at rated conditions. A higher star 
rating indicates a higher  energy efficiency. It is derived from the measured 
SEER . 
 
3.7 Estimated annual energy  consumption  
Estimated annual energy consumption at rated power will be kWh consumed in 
2700 hours at full load. 
3.8 Energy Efficiency Ratio EER  
Ratio of the cooling capacity to the cooling power input value (Unit: 
(Btu/h)/W).  
 
3.9 Coefficient of Performance C OP 
Ratio of  the heating capacity to the power input value (Unit: W/W).  
 
3.10 Cooling Seasonal Energy Consumption (CSEC)  
Total annual amount of energy consumed by the equipment when it is operated for cooling in active 
mode . 
 
3.11 Cooling Seasonal Performance Factor (CSPF)  
Ratio  of  the  total  annual  amount  of  heat  th at  the  equipment  can  remove  from  the  indoor  air  
when operated for cooling in active mode to the total annual amount of energy consumed by the 
equipment during the same period 
3.12 Seasonal Energy Efficiency Ratio (SEER)   
Cooling Seasonal Performance Factor (CSPF) multiplied by 3.412 (Unit: Btu/(W.h)). 
 
4. REGISTRATION REQUIREMENTS  
4.1 Registration is mandatory for all imported and locally manufactured products. 
The information about registration requirement for energy labelling and MEPS 
is available at EER platform.  
4.2 To register products for energy labeling and MEPS, a test report from an 
accredited laboratory in accordance with recent edition of the standards referenced in Clause 2 and the test points specified under Table 1, as  
applicable, shall be uploaded to the EER  platform for each model.  
 7   
 
Table 1 – Temperature and Humidity Conditions  
Test Characteristics  Fixed  Two-
stage  Multi- stage  Variable  Default Values  
Standard 
cooling  
capacity  
 Indoor  
DB 29°C  
WB 19°C  
 
Outdoor  
 
DB 46°C 
WB 24°C  Full capacity 
 (46) (W) or (Btu/h)  
        ‒ 
 Full power input 
  (46) (W)  
Half capacity 
  (46) (W) or (Btu/h)  
‒ ‒ D D 0.859 x ϕhaf (35)  
Half power input 
  (46) (W) 1.25 x Phaf (35)  
Minimum capacity 
  (46) (W) or 
(Btu/h)  ‒ D D D 0.859 x ϕmin (35)  
Minimum power input 
  (46) (W) 1.25 x Pmin (35)  
Standard 
cooling  
capacity 
Indoor  
DB 27°C  
WB 19°C  
 
Outdoor  
 
DB 35°C 
WB 24°C  Full capacity 
  (35) (W) or (Btu/h)  
        ‒ 
Full power input 
  (35) (W)  
Half capacity 
  (35) (W) or (Btu/h)  
‒ ‒     ‒ Half power input 
  (35) (W) 
Minimum capacity 
  (35) (W) or 
(Btu/h)  
‒   O O ‒ 
Minimum power input 
  (35) (W) 
Low 
Temperature  
cooling 
capacity  
 Indoor  
 
DB 27 °C  
WB 19 °C  
 
Outdoor  
DB 29 °C  
WB 24 °C  Full capacity 
  (29) (W) or (Btu/h)  
D D D ‒ 1.077 x ϕful (35)  
Full power input 
  (29) (W)  0.914 x P ful (35)  
Half capacity 
  (29) (W) or (Btu/h)  
‒ ‒ D D 1.077 x ϕhaf (35)  
Half power input 
  (29) (W) 0.914 x P haf (35)  
Minimum capacity 
  (29) (W) or 
(Btu/h)  ‒ D D D 1.077 x ϕmin(35)  
Minimum power input 
  (29) (W) 0.914 x Pmin (35)  
Low 
humidity 
and cyclic 
cooling Indoor  
DB 27 °C  
WB 16 °C  
or lower  
Outdoor DB 
35 °C  
WB -  
 
 Degradation 
coefficient (C D) Full capacity  O ‒ ‒ ‒ 
0.27  
 Half capacity  ‒ 
 
 
 
  
 ‒ O ‒ 
Minimum capacity  ‒ O O ‒ 
▪ : Required test / ‒  : Not applicable                                                                                              D :  Default value /O : Optional test.  8  4.3 Energy Label Validity (Check Testing)  
The energy label shall be accepted as valid when a single sample of an 
appliance or unit model, tested for an initial screening test, meets the following 
criteria for cooling and heating, as a pplicable:  
a) Tested  power at full load operation at (T1 and T3)…...≤  1.05 x rated  power at full 
load operation at (T1 and T3).  
b) Tested  power at half load operation at (T1) ……………......≤  1.05 x rated  power at 
half load operation at (T1).  
c) Tested  power at minimum load operation at (T1).....≤  1.05 x rated  power at minimum 
load operation at (T1).  
d) Tested cooling capacity at full load operation at (T1 and T3)………….. ≥  0.95 x rated 
cooling capacity at f ull load operation at (T1 and T3). 
e) Tested cooling capacity at half load operation at (T1) ………….. ≥  0.95 x rated 
cooling capacity at half load operation at (T1).  
f) Tested cooling capacity at minimum load operation at (T1)………≥  0.95 x rated 
cooling capaci ty at minimum load operation at (T1).  
g) Tested  EER at full load operation at (T1 and T3) ………………..…….≥  MEPS and  
≥  0.95 x rated  EER at full load operation (T1 and T3)  
 
h) Tested COP  .................................................................. ≥ 0.95 x rated COP.  
i) Tested  voltage  ..................... 230 volt single phase or 400 volt three  phase.  
j) Tested  frequency  .............................................................................. 50 Hz.  
k) Testing conditions (T1)      (Refer to the standards mentioned in clause2).  
l) Testing conditions (T3)      (Refer to the standards mentioned in clause2).  
 
5. MEPS  
The minimum energy performance standard MEPS value for the air conditioner in the scope of this regulation shall be greater than or equal to the value of Energy Efficiency 
Ratio (EER), when calculating the cooling capacity at test conditions (T1) and test condition (T3) as  follows:  
 
Table 2 – Minimum Energy Performance Standard MEPS  
Air conditioner 
appliance type  at test 
condition (T1) EER Value (Btu/h)/W  
T1 T3 
Window type  
CC (≤24k) 9.8 7.0 
Window type  
24,000 < CC ≤ 65,000   9.0 6.2 
Split type  
CC ≤ 65,000  11.8 8.3 9   
 
6. NAME PLATE AND INSTRUCTION SHEET OR MANUAL  
The following information shall be marked on the name plate of the air - 
conditioner, in Arabic or English or both. The marking shall not be on a 
detachable part of the unit and shall be indelible, durable and easily legible.  
Any energy / performance related information that is attached or displayed on 
any part of the air -conditioner unit or packaging must be justified and free from 
misstatements and according to the normative reference standards mentioned in 
clause (2).  
6.1 The information on the name plate  shall include at minimum, the  following:  
– Manufacturer’s name and/or  trademark.  
– Country of  origin. 
– Manufacturer’s model or type reference and serial number of the unit. 
– Rated voltage or rated voltage range  (Volts).  
– Rated frequency  (Hz).  
– Rated current in  Amperes.  
– Rated power input in watts or  kilowatts.  
– Net total room cooling capacity in Btu/h.  
– Energy Efficiency Ratio (EER) in (Btu/h)/W . 
– Heating capacity in W (Applicable to heating units only). 
– Coefficient of Performance (COP) (Watt/Watt). (Applicable to heating 
units  only).  
– Refrigerant used and mass of refrigerant charge in  kg. 
 
6.2 An instruction sheet or manual in both Arabic and English shall be delivered 
with each air -conditioner, including the following information:  
– The information specified in clause  7.1. 
– Dimensions of the unit and its method of  mounting. 
– Minimum clearances between the various parts of the unit and the surrounding framework.  
– Instructions necessary for the correct operation of the unit and any special precautions to be observed to ensure its safe use and maintenance.  10  – Instruction for packing and unpacking the  unit. 
– Weight of the  unit. 
– Any other additional information. 
7. SEASONAL ENERGY EFFICIENCY RATIO (SEER) CLASSIFICATION  
7.1  General  
The Seasonal Energy Efficiency (SEER) classification is used for the 
comparative label for products within the scope of this regulation. 
7.2  Weather Bin.  
Weather data, presented in table 3, shall be applied to the ISO 16358- 1:2013, 
Clause 6 (Calculations) and the corresponding changes mentioned in ISO 16358- 1:2013/Amd 1:2019, and incorporated into ISO 16358- 1:2013/AMD 
1:2019 calculation tool, to find the SE ER value and its relevant measurements, 
such as the Cooling Seasonal Energy Consumption (CSEC). 
 
Table 3 –WEATHER BIN   
Bin number  
 Outdoor 
temperature  
 °C Fractional bin hours 
(informative)  Bin Hours  
 Reference bin hours 
h 
1 21 0.032  
  267 
2 22 0.033  
  279 
3 23 0.033  
  281 
4 24 0.037  
  314 
5 25 0.037  
  309 
6 26 0.041  
  341 
7 27 0.042  
  357 
8 28 0.043  
  366 
9 29 0.049  
  411 
10 30 0.052  
  435 
11 31 0.055  
  464 
12 32 0.060  
  501 
13 33 0.058  
  492 
14 34 0.054  
  456 
15 35 0.048  
  408 
16 36 0.047  
  395 11  17 37 0.043  
  360 
18 38 0.042  
  357 
19 39 0.040  
  335 
20 40 0.039  
  325 
21 41 0.034  
  290 
22 42 0.029  
  240 
23 43 0.024  
  200 
24 44 0.015  
  130 
25 45 0.009  
  78 
26 46 0.003  
  24 
  Total  8415  
 
7.3  Calculation tool to calculate SEER.  
In order to calculate the Seasonal Energy Efficiency Ratio (SEER) value for 
products covered within the scope of this regulation, the calculation tool shall 
be applied from ISO 16358- 1:2013/AMD 1:2019 and based on ISO 16358-
1:2013, Clause 6 (Calculations) and the corresponding changes mentioned in 
ISO 16358- 1:2013/Amd 1:2019, with the incorporation of weather data under 
clause 7.2 within this regulation.  
7.4 Determination of the Seasonal Energy Efficiency Ratio (SEER) classification  
 The Seasonal Energy Efficiency Ratio classification is based on the SEER value, which is calculated based on the results of the rated values for the 
cooling capacity and power input at the specified testing points mentioned in 
Table 1, and determined in accordance with the following table. 
 
Table 4 – SEER limits for star rating   
SEER limits  
(Btu/h)/W  Star Rating  
SEER ≥ 18 6 
18 > SEER ≥ 15 5 
    15 > SEER ≥ 12.5 4 
12.5 > SEER ≥ 10 3 
10 > SEER ≥ 9 2 
SEER ≤ 9 1 12  8. ENERGY LABELLING  REQUIREMENTS  
 
8.1 Information and Values Contained in the Energy  Labels  
The required fonts are “Simplified Arabic” for Arabic and “Times New 
Roman” for English as illustrated in Figures 1 and 2. The fields (a),  (b), (c), (d) 
of Figure 1 shall comply with the following requirements:  
 
(a) Field a This band shall terminate according to the appliance’ s star rating 
for a rating of only full stars, bisecting the gap between the relevant star 
and the next higher on the  scale.  
 
(b) Field b The brand and model designation shall be inserted here. The 
wording should be complete and concise. They should have normal spacing of letter, line and word in the specified area. In the case of split 
systems, where the indoor and outdoor components have different model numbers, model numbers for both shall appear on the  label.  
(c) Field c This band shall include the total rated cooling capacity (output 
capacity  in Btu/h and in ton, where CC ton = CC Btu/h/12000)  
and the annual energy  consumption.  
 
(d) Field d This area shall contain the rated total heating capacity (if 
applicable), and the power input for heating. The Figures that apply to the particular appliance shall be of the font indicated and shall be centered in the area for  heating.  
(e) Field e This b and shall include the tested value of seasonal energy 
efficiency ratio ( SEER)  for the  appliance.  
 
Note: The cooling capacity and power input values shown on the energy label are based on the 
rated cooling capacity and the rated power, as declared by the manufacturer and shown in the 
nameplate for condition T 1 for cooling capacity in accordance with the standards mentioned in 
clause 2.  
8.2 Sample Labels  
Examples of printed energy label for air -conditioning appliances are shown in 
Figures 1 and 2.  
8.3 Dimensions of  Labels  
Figure 3 shows the dimensions of label. 
 13  8.4 Placement of Energy  Labels  
The label shall be fixed or  attached as a tag on the most prominent part the of 
the product . For the split type Air Conditioners, the label shall be fixed or 
attached as a tag on both indoor and outdoor units. 
Additional label shall be attached to the exterior of the packaging. The label 
shall remain on the unit /package when the unit is removed from its packaging 
for display purposes.  
8.5 Material and Shape of Energy  Labels  
The label shall be of durable cardboard, if it is to be attached as a tag, or be 
self-adhesive, and shall be cut to the outline shown in Figure 1. A trim or die 
cut margin of up to 5 mm around the label is acceptable. 14  
 
 
FIGURE 1: Example of label -  Heating & Cooling Unit  15   
  
 
 
 
FIGURE 2: Details of Label – Cooling only  16   
 
 
FIGURE 3: Dimension of label