Benchmark Alpha E-Tec Plus 28 - Page 56

Alpha E-Tec Plus 28, 33 and 38 - Energy Classification
Water heating energy efciency of combination heater
Water heating energy efciency of package under average climate
Water heating energy efciency class of package under average climate
Water heating energy efciency under colder and warmer climate conditions
Colder : - 0.2 x =
Warmer : + 0.4 x =
Declared load prole:
Solar contribution
From che of solar device
1
%
‘I’
2
%
+
( 1.1 x ‘I’ - 10 % ) x ‘II’ - ‘III’ - ‘I’ =
Auxiliary electricity
3
%
G F E D C B A A
+++
A
++
A
+
< 27 %
< 27 %
< 27 %
< 28 %
≥ 27 %
≥ 27 %
≥ 27 %
≥ 28 %
≥ 30 %
≥ 30 %
≥ 30 %
≥ 32 %
≥ 33 %
≥ 34 %
≥ 35 %
≥ 36 %
≥ 36 %
≥ 37 %
≥ 38 %
≥ 40 %
≥ 39 %
≥ 50 %
≥ 55 %
≥ 60 %
≥ 65 %
≥ 75 %
≥ 80 %
≥ 85 %
≥ 100 %
≥ 115 %
≥ 123 %
≥ 131 %
≥ 130 %
≥ 150 %
≥ 160 %
≥ 170 %
≥ 163 %
≥ 188 %
≥ 200 %
≥ 213 %
M
L
XL
XXL
3 2
3 2
%
%
The energy efciency of the package of products provided for in this che may not correspond to its
actual energy efciency once installed in a building, as the efciency is inuenced by further factors
such as heat loss in the distribution system and the dimensioning of the products in relation to building
size and characteristics.
12.4 FACSIMILE FOR FILLING IN DOMESTIC HOT WATER PRODUCTION SYSTEM ASSEMBLY CHART
56