Baxi 430 Combi 2 - Operation; Start-up

3 Technical specifications
14 Combi 2
Baxi Combi 2
424
430
Seasonal space heating energy efficiency
ƞs
%
93
93
Useful efficiency at rated heat output and high
temperature setting
(2)
ƞ4
%
88.2
88.0
Useful efficiency at 30% of rated heat output
and low temperature setting
(1)
ƞ1
%
97.9
97.8
Auxiliary electricity consumption
Full load
elmax
kW
0.037
0.026
Partial load
elmin
kW
0.014
0.014
Standby mode
PSB
kW
0.004
0.004
Other items
Heat loss on standby
Pstby
kW
0.04
0.04
Ignition burner power consumption
Pign
kW
-
-
Annual energy consumption
QHE
GJ
62
62
Sound power level, indoors
LWA
dB
50
49
Nitrogen oxide emissions
NOx
mg/kWh
21
21
Domestic hot water parameters
Declared load profile
XL XL
Daily electricity consumption
Qelec
kWh
0.176
0.189
Annual electricity consumption
AEC
kWh
39
42
Water heating energy efficiency
ƞwh
%
88
89
Daily fuel consumption
Qfuel
kWh
22.03
21.66
Annual fuel consumption
AFC
GJ
17
17
(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 setting means 60 °C return temperature at boiler inlet and 80 °C flow temperature at boiler outlet
Tab.6 General
424
430
Rated heat input (Qn) for domestic hot water
kW
24.7
30
Rated heat input (Qn) with domestic hot water tank
kW
–
-
Rated heat input (Qn) for heating
kW
20.6
20.6
Reduced heat input (Qn) 80/60 °C
kW
4.9
6.0
Rated heat output (Pn) for domestic hot water
kW
24
29.1
Rated heat output (Pn) with domestic hot water tank
kW
–
-
Rated heat output (Pn) 80/60 °C for heating
kW
20
20
Rated heat output (Pn) 50/30 °C for heating
kW
21.8
21.8
Reduced heat output (Pn) 80/60 °C
kW
4.8
5.8
Reduced heat output (Pn) 50/30 °C
kW
5.2
6.3
Rated efficiency 50/30 °C (Hi)
%
105.8
105.8