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Package fiche for boilers indicating the space heating energy efficiency of the package
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(
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('III' x
(
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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.
14
© Baxi Heating UK Ltd 2015
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fi f
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T
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k
v
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m
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(
n i
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'IV' x
v
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, A
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9 .
5
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C
a l
s s
I
=
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%
,
C
a l
s s
Class IV = 2%, Class V = 3%, Class VI = 4%,
Class VII = 3.5%, Class VIII = 5%
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C
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0.9 x (
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f
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c fi
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I 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.
9.0 ErP Information
9.2
Package Fiche - Boilers
I I
=
2
%
,
C
a l
s s
I I I
=
1
5 .
%
,
t a
n i
g
e
n
e
g r
y
f e
c fi
e i
n
y c
(
n i
%
)
(
- 'I' ) x 0.1 = ±
T
a
n
k
r
t a
n i
g
A* = 0.95, A = 0.91,
(
n i
B = 0.86, C = 0.83,
D - G = 0.81
/100)
x
t a
n i
g
e
n
e
g r
y
f e
c fi
e i
n
y c
(
n i
%
)
(
- 'I' ) x 'II' = +
5
0.5 x
R
+
++
+++
A
A
A
e
t a
e
m
t i
e t
s r
t a
3
° 5
C
?
7
+ (50 x 'II') =
r o
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s
p
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n
d
o t
s t i
a
c
u t
l a
e
n
e
g r
y
1
'I'
%
2
+
%
3
%
(1)
4
= +
%
5
%
6
= -
%
7
%
%
f e
c fi
e i
n
y c
o
n
c
e
n i
s
a t
e l l
d
AD-3000743-01
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