Baxi 430 Combi 2, Installation And Service Manual

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3 Technical specifications
14 Combi 2
Baxi Combi 2
424 430
Seasonal space heating energy efficiency
ƞ
s %
93 93
Useful efficiency at rated heat output and high
temperature setting
(2)
ƞ
4 % 88.2 88.0
Useful efficiency at 30% of rated heat output
and low temperature setting
(1)
ƞ
1 %
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
ƞ
wh %
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