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Worcester-Bosch Greenstar 4000 GR4700i System Manual

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Energy consumption
Greenstar 4000 – 6 720 891 171 (2020/09)
22
LPG appliances
The following product data comply with the requirements of the EU Regulations No. 811/2013, No. 812/2013, No. 813/2013 and No. 814/2013
supplementing the Regulation (EU) 2017/1369.
Table 12 Product data on energy consumption Greenstar 4000
Product data Symbol Unit 7 733 600 386 7 733 600 384 7 733 600 382
Product type – – GR4700iW 24 S LPG GR4700iW 21 S LPG GR4700iW 18 S LPG
Condensing boiler – –
Low temperature boiler – – 
B1 boiler – –
Cogeneration space heater – – 
Equipped with a supplementary heater? – – – – –
Combination heater – – 
Rated heat output Prated kW 24 21 18
Seasonal space heating energy efficiency s%94 94 94
Energy Efficiency Class – – A A A
Useful heat output
At rated heat output and high temperature regime 1)
1) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.
P4kW 24 21 18
At 30 % of rated heat output and low temperature
regime 2)
2) 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).
P1kW 8.1 7.1 6.1
Useful efficiency
At rated heat output and high temperature regime 1) 4% 87.9 88.2 88.1
At 30 % of rated heat output and low temperature
regime 2) 1%98.9 99 99.1
Auxiliary electricity consumption
At full load elmax kW 0.038 0.030 0.027
At part load elmin kW 0.012 0.011 0.011
In standby mode PSB kW 0.002 0.002 0.002
Other items
Standby heat loss Pstby kW 0.059 0.059 0.059
Ignition burner power consumption Pign kW – – –
Emissions of nitrogen oxides (only gas- or oil fired) NOxmg/kWh 40 35 37
Annual energy consumption QHE kWh 20556 18056 15287
Annual energy consumption QHE GJ 74 65 55
Sound power level, indoors LWA dB 45 44 45
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