3.1.1
Certification
3.2
Technical data
3 Technical specifications
3.1
Homologations
Tab.1
Certifications
UKCA
certificate number
748363
NOx class
6
Boiler type
C
13
, C
33
Tab.2
Technical settings for combination heaters with boilers
3.2.1
Technical information
Important
All data in these sections are nominal and subject to normal pro
duction tolerances.
3 Technical specifications
400 Combi 2
9
Baxi Combi 2
424
430
424 LPG
430 LPG
Condensing boiler
Yes
Yes
Yes
Yes
Low-temperature boiler
(1)
No
No
No
No
B1 boiler
No
No
No
No
Cogeneration space heater
No
No
No
No
Combination heater
Yes
Yes
Yes
Yes
Rated heat output
Prated
kW
20
20
20
20
Useful heat output at rated heat output and high
temperature setting
(2)
P4
kW
20
20
20
20
Useful heat output at 30% of rated heat out-put and
low temperature setting
(1)
P1
kW
6.7
6.7
6.7
6.7
Seasonal space heating energy efficiency
ƞs
%
93
93
93
93
Useful efficiency at rated heat output and high
temperature setting
(2)
ƞ4
%
88.2
88.0
88.2
88
Useful efficiency at 30% of rated heat output and low
temperature setting
(1)
ƞ1
%
97.9
97.8
97.9
97.8
Auxiliary electricity consumption
Full load
elmax
kW
0.037
0.026
0.037
0.026
Partial load
elmin
kW
0.014
0.014
0.014
0.014
Standby mode
PSB
kW
0.004
0.004
0.004
0.004
Other items
Heat loss on standby
Pstby
kW
0.04
0.04
0.04
0.04
Ignition burner power consumption
Pign
kW
-
-
-
-
Annual energy consumption
QHE
GJ
62
62
62
62
Sound power level, indoors
LWA
dB
50
49
50
49
Nitrogen oxide emissions
NOx
mg/kWh
2
4
21
21
21
Domestic hot water parameters
Declared load profile
XL
XL
XL
XL
Daily electricity consumption
Qelec
kWh
0.176
0.189
0.176
0.189
Annual electricity consumption
AEC
kWh
39
42
39
42
Water heating energy efficiency
ƞwh
%
88
89
88
89
Daily fuel consumption
Qfuel
kWh
22.03
21.66
22.03
21.66
Annual fuel consumption
AFC
GJ
17
17
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
Gas Council numbers
47-077-51
47-077-52
47-077-53
47-077-54
