Alpha E-Tec 20S - Domestic Hot Water Production System Assembly Chart; Parameters for Filling in DHW Package Assembly Chart

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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
%
_____
2
%
+
( 1.1 x _____ - 10 % ) x _____ - ____ - ______ =
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.
Parameter E-Tec 20S E-Tec 30S
‘I’ - -
‘II’ - -
‘III’ - -
11.7 PARAMETERS FOR FILLING IN DHW PACKAGE ASSEMBLY CHART
* To be determined according to Regulation 811/2014 and transient calculation methods as per Notice of the European
Community no. 207/2013.
11.6 DOMESTIC HOT WATER PRODUCTION SYSTEM ASSEMBLY CHART
Alpha E-Tec S 20 and 30 - Energy Classification
