E.C.A. CITIUS PREMIX - Page 38

2
- %
Auxillary Electricity
3
%
1
- “I” %
7
Water Heating Energy Efficiency Of Combination Heater
Declared load profile :
Solar Contribution
From fiche of solar device ( 1.1 x 'I' - 10 % ) x 'II' - 'III' - 'I' =
Water Heating Energy Efficiency Of Package Under Average Climate
Water Heating Energy Efficiency Class Of Package Under Average Climate
Water Heating Energy Efficiency Under Colder And Warmer Climate Conditions
Cold : - 0,2 x = %
Warm : - 0,2 x = %
The energy efficiency of the package of products provided for in this fiche may not correspond to its actual energy efficiency once installed in
a building, as this efficiency is influenced by further factors such as heat loss in the distribution system and the dimensioning of the products
in relation to building size and characteristics.
''I' The value of the water heating energy efficiency of the combination heater, expressed in %.
'II' The value of the mathematical expression (220 . Qref)/Qnonsol, where Qref is taken from Regulation EU 811/2013, Annex VII Table 8 and
Qnonsol from the product fiche of the solar device for the declared load profile M, L, XL or XXL of the combination heater.
'III' The value of the mathematical expression (Qaux . 2,5)/(220 . Qref), expressed in %, where Qaux is taken from the product fiche of the
solar device and Qref from Regulation EU 811/2013, Annex VII Table 8 for the declared load profile M, L, XL or XXL.
Boiler And Supplementary Heat Pump İnstalled With Low Temperature Heat Emitters At 35°C
From fiche of heat pump
+ ( 50 x “II” ) =
%
Weighting of Boilers
Psup / (Prated+Psup)
(1)(2)
II, package without hot water storage tank
II, package with hot water storage tank
0
0
0
0.1
0.3
0.37
0.2
0.55
0.70
0.3
0.75
0.85
0.4
0.85
0.94
0.5
0.95
0.98
0.6
0.98
1
0.7
1
1
(1) The intermediate values are calculated by linear interpolation between in two adjacent values.
(2) Prated is related to the preferential space heater or combination heater.
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