Package Fiche - Boilers - Baxi 424 Combi 2 User Manual

13.2

Package fiche - boilers

Fig.13 Package fiche for boilers indicating the space heating energy efficiency of the package
Seasonal space heating energy effi ciency of boiler
Temperature control
from fi che of temperature control
Supplementary boiler
from fi che of boiler
Solar contribution
from fi che of solar device
Collector size (in m²)
('III' x
(1) If tank rating is above A, use 0.95
Supplementary heat pump
from fi che of heat pump
Solar contribution AND Supplementary heat pump
select smaller value
Seasonal space heating energy effi ciency of package
Seasonal space heating energy effi ciency class of package
G
<30%
Boiler and supplementary heat pump installed with low temperature heat emitters at 35°C ?
from fi che of heat pump
The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed
in a building, as this effi ciency is infl 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.
32 400 Combi 2
Tank volume (in m³)
+ 'IV' x ) x
0.5 x
F E D C
Class I = 1%, Class II = 2%, Class III = 1.5%,
Class IV = 2%, Class V = 3%, Class VI = 4%,
Class VII = 3.5%, Class VIII = 5%
Seasonal space heating energy effi ciency (in %)
(
Tank rating
Collector effi ciency (in
%)
0.9 x ( /100)
Seasonal space heating energy effi ciency (in %)
(
4
OR
+
B A A
7
+
- 'I' ) x 0.1 = ±
(1)
A* = 0.95, A = 0.91,
B = 0.86, C = 0.83,
D - G = 0.81
x = +
- 'I' ) x 'II' = +
5
0.5 x = -
++ +++
A A
+ (50 x 'II') =
13 Appendix
1
'I' %
2
%
3
%
4
%
5
%
6
%
7
%
%
AD-3000743-01