Baxi Power - Page 21

21
18.1.2 Package fiche
AD-3000743-01
%
1
‘I’
2
%+
3
%( - ‘I’ ) x 0.1 = ±
4
%(‘III’ x + ‘IV’ x ) x 0.9 x ( /100) x = +
(1)
A* = 0.95, A = 0.91,
B = 0.86, C = 0.83,
D - G = 0.81
5
%( - ‘I’ ) x ‘II’ = +
6
%0.5 x 0.5 x = -
54
<30%
G F E D C B A A
+
A
++
A
+++
%+ (50 x ‘II’) =
7
7
%
from che of solar device
Solar contribution AND Supplementary heat pump
Solar contribution
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
c 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.
Boiler and supplementary heat pump installed with low temperature heat emitters at 35°C ?
Seasonal space heating energy ef
ciency class of package
Seasonal space heating energy ef
ciency of package
OR
Seasonal space heating energy ef ciency (in %)
Supplementary heat pump
Tank rating
Collector ef
ciency (in
%)
Tank volume (in m³)Collector size (in m²)
Seasonal space heating energy ef
ciency (in %)
Supplementary boiler
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%
Temperature control
Seasonal space heating energy ef
ciency of boiler
(1) If tank rating is aboveA, use 0.95
select smaller value
from che of heat pump
from
che of heat pump
from
che of boiler
from
che of temperature control