Environmental Engineering Reference
In-Depth Information
A
B
C
D
E
F
G
Cooling EER W/W
Heating COP W/W
>3.2
3.0-3.2
2.8-3.0
2.6-2.8
2.4-2.6
2.2-2.4
<2.2
>3.6
3.4-3.6
3.2-3.4
2.8-3.2
2.6-2.8
2.4-2.6
<2.4
FIGURE 6.11
Label for air conditioners.
4. The cooling output at full load in kW
5. The energy efficiency ratio (EER) in cooling mode at full load
6. The appliance type (cooling only, cooling/heating)
7. The cooling mode (air or water cooled)
8. The noise rating in dB (where applicable)
For air conditioners with heating capability, one shall also find (Figure 6.11):
1. The heat output at full load in kW
2. The heating mode energy efficiency category
Note that there exist units with EER and coefficient of performance (COP)
> 5, so take a note of the actual number when it is A rated.
6.3.2.1.6 Light Bulbs
On every label, you will find:
1. The energy efficiency category from A to G
2. The luminous flux of the bulb in lumens
3. The electricity consumption of the lamp in watts
4. The average life length in hours
6.3.2.1.7 Televisions
New standards that televisions need to meet for the Energy Star efficiency
rating came into effect early in September 2009 [4].
6.3.2.2 U.K. Energy Performance Certificate
A sample is shown here in Figure 6.12.
6.3.2.2.1 Home Energy Performance Rating Charts
Energy performance certificates (EPCs) are part of home information packs [1],
which have been in effect since August 2007 in England and Wales for domestic
properties with four or more bedrooms. The scheme was extended to encom-
pass three-bedroom homes from September 2007. Rental properties have a
certificate valid for 10 years that is required on a new tenancy commencing on
