Westen Star Condens+, Instruction Manual For Users And Fitters

Page: 19 / 76

19
INST
ALLER Section
(en)
7729500 (03-12/19)
20. TECHNICAL PARAMETERS
WESTEN STAR 1.12 1.24 24 28 33
Condensing boiler Yes Yes Yes Yes Yes
Low-temperature boiler
(1)
No No No No No
B1 boiler No No No No No
Cogeneration space heater No No No No No
Combination heater No No Yes Yes Yes
Rated heat output
Prated
kW 12 24 20 24 28
Useful heat output at rated heat output
and high temperature regime
(2)
P
4
kW 12.0 24.0 20.0 24.0 28.0
Useful heat output at 30% of rated heat
output and low temperature regime
(1)
P
1
kW 4.0 8.0 6.6 8.0 9.3
Seasonal space heating energy efficiency
ƞ
s
% 92 92 92 92 93
Useful efficiency at rated heat output and
high temperature regime
(2)
ƞ
4
% 88.1 87.9 88.0 87.9 88.0
Useful efficiency at 30% of rated heat
output and low temperature regime
(1)
ƞ
1
% 97.6 97.5 97.5 97.5 97.7
Auxiliary electricity consumption
Full load
elmax
kW 0.030 0.030 0.030 0.040 0.040
Part load
elmin
kW 0.013 0.013 0.013 0.013 0.013
Standby mode
P
SB
kW 0.003 0.003 0.003 0.003 0.003
Other items
Standby heat loss
P
stby
kW 0.075 0.075 0.075 0.075 0.075
Ignition burner power consumption
P
ign
kW 0.000 0.000 0.000 0.000 0.000
Annual energy consumption
Q
HE
GJ
38 75 63 75 87
Sound power level, indoors
L
WA
dB 51 50 49 50 53
Emissions of nitrogen oxides NO
X
mg/kWh 22 15 11 15 20
Domestic hot water parameters
Declared load profile XL XL XXL
Daily electricity consumption
Q
elec
kWh 0.191 0.193 0.357
Annual electricity consumption
AEC
kWh 42 42 79
Water heating energy efficiency
ƞ
wh
% 83 83 86
Daily fuel consumption
Q
fuel
kWh 23.420 23.460 27.720
Annual fuel consumption
AFC
GJ 18 18 22
(1) Low temperature means for condensing boilers 30°C, for low temperature boilers 37°C and for other heaters 50°C return temperature
(at heater inlet).
(2) High temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet.