42
3-9
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
Example to fill in the domestic hot water production system assembly chart.
Water heating energy efficiency of combination heater
Water heating energy efficiency of package under average climate
Water heating energy efficiency class of package under average climate
Water heating energy efficiency under colder and warmer climate conditions
Colder: - 0,2 x =
Warmer: + 0,4 x =
Declared load profile:
Solar contribution
From fiche of solar deviee
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 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 build
-
ing size and characteristics.
