8 About the Boiler
2.3 Technical Data
The following table lists the general specifications for the boiler.
Specifications Unit NCB700-42C NCB700-54C
Heat input range kW 34.8/3.5 34.8/3.5
DHW heat input range kW 40.8/3.5 52.4/3.5
Heat output range @ 80/60°C kW 34.0/3.4 34.0/3.4
DHW output range kW 42.0/3.5 42.0/3.5
Condensing heat output range @ 50/30°C kW 37.2/3.7 37.2/3.7
Full load efficiency at Max./Min. output @ 80/60°C % 97.0/97.0 97.0/97.0
Full load efficiency at Max./Min. output @ 50/30°C (Condensing) % 107.0/107.8 107.0/107.8
Partial load (30%) efficiency with 47°C return temp. % 103.0 103.0
Partial load (30%) efficiency with 30°C return temp. % 108.5 108.5
Heat loss through the case with burner switched on % 0.1 0.1
Heat loss through the chimney with burner switched on % 1.9 1.9
Seasonal efficiency rate (SEDBUK 2009) - 89.1 89.1
NOx Classification - Class 6
Category - II2H3P
Type - Heating and instantaneous hot water production
Heat output adjustment - Adjustable over entire Max./Min. output range
Type of heating installation - Close circuit
Max. heating operation pressure bar 2.5
Max. heating temperature °C 90
Adjustable heating temperature range °C 40-90
Expansion vessel volume l 10.0
Expansion vessel pre-charged pressure bar 1.0
Min. DHW working pressure bar 1.2 1.2
Min. DHW working flow l/min 2.0
Max. DHW working pressure bar 10
Adjustable DHW temperature range °C 30–65
DHW flow rate @ 25°C temp. rise. l/min 24.1 31.0
DHW flow rate @ 30°C temp. rise. l/min 20.1 25.8
DHW flow rate for kitchen @ 45°C temp. rise. l/min 13.4 17.2
Electrical power supply - 230 V/50 Hz
Nominal current A 0.62
Max. power consumption W 140
Appliance protection rating - IP X5D
Boiler mounting system type - Wall-mounted
To Next Page
Loading...
Need help?
General
