6.6 PACKAGE LABEL CALCULATIONS
Package fiche for boilers indicating the space heating energy efficiency of the package
6.6.1 Package Fiche-Boilers
Seasonal space heating energy efficiency of boiler
“T”: The value of the seasonal space heating energy efficiency of the
preferential space heater, expressed in %.
Temperature Control
from fiche of temperature control
Supplementary Boiler
Solar Contribution
from fiche of solar device
''III' :
The value of the mathematical expression : 294/(11.Prated), whereby 'Prated' is related to the preferential
space heater.
'IV' :
The value of the mathematical expression : 115/(11.Prated), whereby 'Prated' is related to the preferential
space heater.
(1) If tank rating is above A, use 0.95
1
T
%
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%
2
+
%
Seasonal space heating energy efficiency (in %)
( -
T ) x 0.1 =
±
%
Collector size (in m²)
Tank Volume (im m²)
Collector efficiency
(in %)
( 'III' x
+
'IV' x
) x 0.9 x (
/ 100) x
= +
%
Tank rating
A*=0,95, A=0,91,
B=0,86, C=0,83, D -
G =0,81
3
4
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