Benchmark Alpha E-Tec Plus 28 Installation And Servicing Instruction page 56

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