Seasonal space heating energy eciency of boiler
Temperature control
From che of temperature control
Supplementary boiler
From che of boiler
( - ‘I’ ) x 0,1 =
Seasonal space heating energy eciency (in %)
Class
I = 1%, II = 2%, III = 1,5%, IV = 2%,
V = 3%, VI = 4 %, VII = 3,5%, VIII = 5%
‘I’
%
1
%
2
+
%
3
Seasonal space heating energy eciency (in %)
Solar contribution - From che of solar device
Solar contribution and supplementary heat pump
Seasonal space heating energy ecinency of package
Seasonal space heating energy ecinency class of package
Boiler and supplementary heat pump installed with low temperature heat emitters at 35 °C?
From che of heat pump
Supplementary heat pump
From che of heat pump
Select smaller value
( ‘III’ x + ‘IV’ x ) x 0,9 x ( /100 ) x =
( - ‘I’ ) x ‘II’ =
Collector size ( in m
2
) Tank volume ( in m
3
)
Collector eciency ( in %)
Tank rating
A* = 0,95, A = 0,91,
B = 0,86, C = 0,83, D-G = 0,81
%
4
4
+
%
5
5
+
%
6
%
%
7
0,5 x OR 0,5 x =
7
+ (50 x ‘II’) =
G F E D C B A
A
+
A
++
A
+++
< 30% ≥ 30 % ≥ 34 % ≥ 36 % ≥ 75 % ≥ 82 % ≥ 90 % ≥ 98 % ≥ 125 % ≥ 150%
Figure 1
The energy efciency of the package of products provided for
this che may not correspond to its actual energy efciency
once installed in a building, as the efciency is inuenced by
further factors such as heat loss in the distribution system and
the dimensioning of the products in relation to building size and
characteristics.
To Next Page
Loading...
Need help?
General
