Worcester 41-311-67 - Technical Data

APPLIANCE INFORMATION
6 720 644 743a (2010/10)
7
2.2 TECHNICAL DATA
DESCRIPTION NATURAL GAS LPG
UNIT 12i 15i 18i 24i 12i 15i 18i 24i
Gas flow rate - Max. 10 minutes from lighting
Natural Gas G20 m³/h 1.33 1.63 1.96 2.67 ----
Propane Gas (LPG) kg/h ----0.96 1.20 1.44 1.91
Central Heating
Maximum rated heat input (net) kW 12.32 15.40 18.48 24.62 12.32 15.40 18.48 24.62
Minimum heat input kW 3.45 4.62 5.54 7.38 5.95 5.95 9.64 9.64
Max. rated heat output 40/30 °C kW 12.85 16.06 19.28 25.67 12.85 16.06 19.28 25.67
Max. rated heat output 50/30 °C kW 12.74 15.92 19.11 25.45 12.74 15.92 19.11 25.45
Max. rated heat output 80/60 °C kW 12 15 18 24 12 15 18 24
Max. flow temperature °C 82 82 82 82 82 82 82 82
Max. flow temperature to cylinder (with integral
optional diverter valve)
°C 75 75 75 75 75 75 75 75
Max. permissible operating pressure bar 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
Available pump head at 21 °C system temp. rise m 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0
Flue
Flue gas temp. 80/60 °C, rated/min. load °C 62/56 66/58 70/60 78/63 62/57 66/59 71/61 79/64
Flue gas temp. 40/30 °C, rated/min. load °C 41/33 44/33 48/34 54/35 43/35 46/36 49/37 55/38
CO
2
level at max. rated heat output (after 30 min) % 9.65 9.8 9.8 9.8 11.0 11.0 11.0 11.0
CO
2
level at min. rated heat output (after 30 min) % 8.65 9.2 9.2 9.2 10.5 10.5 10.5 10.5
NOx class 55455545
NOx rating mg/kWh 39 60 84 66 44 60 84 66
Condensate
Maximum condensate rate l/h 0.93 1.2 1.5 2.0 0.7 0.9 1.2 1.5
pH value, approx. 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8
Electrical
Electrical power supply voltage a.c. V 230 230 230 230 230 230 230 230
Frequency Hz 50 50 50 50 50 50 50 50
Maximum power consumption W 140 140 140 140 140 140 140 140
General data
SEDBUK band AAAAAAAA
Appliance protection rating IP X4D X4D X4D X4D X4D X4D X4D X4D
Permissible ambient temperatures °C 0 - 50 0 - 50 0 - 50 0 - 50 0 - 50 0 - 50 0 - 50 0 - 50
Nominal capacity of appliance litre 3.9 3.9 3.9 3.9 3.9 3.9 3.9 3.9
Noise output level (Max central heating) dBA 42 42 42 42 42 42 42 42
Packaged boiler weight kg 41 41 41 41 41 41 41 41
Total boiler weight kg 37.5 37.5 37.5 37.5 37.5 37.5 37.5 37.5
Lift weight kg 27.1 27.1 27.1 27.1 27.1 27.1 27.1 27.1
SEDBUK % 90.1 90.1 90.1 90.1 91.4 91.4 91.4 92.0
Tab. 6 Technical data i System