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Tab.21
Weighting of boilers
Psup / (Prated + Psup)
(1)(2)
0
0.1
0.2
0.3
0.4
0.5
0.6
≥ 0.7
(1) The intermediate values are calculated by linear interpolation between the two adjacent values.
(2) Prated is related to the preferential space heater or combination heater.
Tab.22
Package efficiency
De Dietrich - C140
DIEMATIC Evolution
9.4
EC Declaration of Conformity
7745361 - v03 - 29112021
I
The value of the seasonal space heating energy efficiency of the
preferential space heater, expressed in %.
II
The factor for weighting the heat output of preferential and
supplementary heaters of a package as set out in the following
table.
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.
II, package without hot water storage tank
0
0.3
0.55
0.75
0.85
0.95
0.98
1.00
The unit complies with the standard type described in the EC declaration
of conformity. It has been manufactured and put into circulation in
accordance with the requirements of the European Directives.
The original declaration of conformity is available from the manufacturer.
II, package with hot water storage tank
0
0.37
0.70
0.85
0.94
0.98
1.00
1.00
C140 – 45
C140 – 65
%
90
DIEMATIC Evolution - C140
9 Appendix
C140 – 90
92
95
29
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