Manual De Dietrich ALEZIO V220 EVOLUTION - AWHP-2 MIV-3 V220 (page 41 of 48) (English)

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Fig.26 Package fiche for medium-temperature heat pumps indicating the space heating energy efficiency of the package

AD-3000745-01

‘I’

%( - ‘I’ ) x ‘II’ = ±

%(‘III’ x + ‘IV’ x ) x 0.45 x ( /100) x = +

(1)

A* = 0.95, A = 0.91,

B = 0.86, C = 0.83,

D - G = 0.81

<30%

G F E D C B A A

+++

%+ ‘VI’ =

%- ‘V’ =

from ﬁ che of solar device

Solar contribution

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.

Seasonal space heating energy efﬁ ciency class of package under average climate

Seasonal space heating energy efﬁ ciency of package under average climate

Tank rating

Collector efﬁ ciency (in

Tank volume (in m³) Collector size (in m²)

Seasonal space heating energy efﬁ 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 efﬁ ciency of heat pump

(1) If tank rating is above A, use 0.95

from ﬁ che of boiler

from ﬁ che of temperature control

Colder: Warmer:

Seasonal space heating energy efﬁ ciency under colder and warmer climate conditions

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 supple

mentary 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.

V The value of the difference between the seasonal space heating

energy efficiencies under average and colder climate conditions,

expressed in %.

VI The value of the difference between the seasonal space heating

energy efficiencies under warmer and average climate conditions,

expressed in %.

13 Appendix

7612035 - v03 - 09092015 AWHP-2 MIV-3 V220 41

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De Dietrich ALEZIO V220 EVOLUTION - AWHP-2 MIV-3 V220 Manual

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