APPLIANCE INFORMATION
6 720 803 800 (2012/11)8
2.3 TECHNICAL DATA
DESCRIPTION CDi Compact
Natural gas L.P.G.
UNIT 28kW 32kW 36kW 28kW 32kW 36kW
Domestic Hot Water
Minimum heat input kW 7.15 7.15 7.15 7.15 7.15 7.15
Maximum rated heat output kW 28 32 36 28 32 36
Maximum rated heat input kW 28.57 32.65 36.7 28.57 32.65 36.7
Maximum mains inlet pressure (standing pressure) bar 10 10 10 10 10 10
Minimum mains inlet pressure (working) for max. flow bar 1.6 1.6 1.6 1.6 1.6 1.6
Minimum mains inlet pressure (working) for operation bar 0.2 0.2 0.2 0.2 0.2 0.2
Minimum required flow to fire the boiler l/min. 222222
Domestic Hot Water temperature range °C 40 - 60 40 - 60 40 - 60 40 - 60 40 - 60 40 - 60
*Max. Domestic Hot Water flow rate - 40 °C rise ± 15% l/min. 10.0 11.5 12.9 10.0 11.5 12.9
Gas flow rate - Max. 10 minutes from lighting
Natural Gas G20 m³/h 3.0 3.5 3.9
Propane Gas (L.P.G.) kg/h -2.22.5 2.8
Central Heating
Maximum rated heat input (net) kW 24.34 24.34 24.34 24.34 24.34 24.34
Maximum rated heat output 40/30 °C kW 25.31 25.31 25.31 25.31 25.31 25.31
Maximum rated heat output 50/30 °C kW 25.17 25.17 25.17 25.17 25.17 25.17
Maximum rated heat output 80/60 °C kW 24 24 24 24 24 24
Maximum flow temperature °C 82 82 82 82 82 82
Maximum permissible operating pressure bar 2.5 2.5 2.5 2.5 2.5 2.5
Available pump head at 20 °C system temperature rise m 2.0 2.0 2.0 2.0 2.0 2.0
Flue
Flue gas temperature 80/60 °C, rated/min. load °C 67/64 72/64 78/64 69/66 73/66 79/66
Flue gas temperature 40/30 °C, rated/min. load °C 48/36 51/36 52/36 50/37 52/37 54/37
CO
2
level at max. rated heat output (after 10 minutes) % 9.1 9.1 9.1 10.6 10.6 10.6
CO
2
level at min. rated heat output (after 10 minutes) % 8.5 8.5 8.5 9.6 9.6 9.6
NOx class 555555
NOx rating mg/kWh 35 35 35 46 46 46
Condensate
Maximum condensate rate l/h 2.0 2.0 2.0 2.0 2.0 2.0
pH value, approx. 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
Frequency Hz 50 50 50 50 50 50
Maximum power consumption - running W 104 115 129 104 115 129
Maximum power consumption - stand-by W <1 <1 <1 <1 <1 <1
General data
Appliance protection rating IP X4D X4D X4D X4D X4D X4D
Appliance protection rating with mechanical or
RF mechanical timer or FW100 module fitted
IP IP20 IP20 IP20 IP20 IP20 IP20
Permissible ambient operating temperatures °C 0 - 50 0 - 50 0 - 50 0 - 50 0 - 50 0 - 50
Nominal capacity of appliance litre 2.2 2.2 2.2 2.2 2.2 2.2
**Noise output level (Max central heating) dBA 45.5 45.5 45.5 45.5 45.5 45.5
Total packaged weight kg 43.1 43.1 43.1 43.1 43.1 43.1
Total boiler weight 39.5 39.5 39.5 39.5 39.5 39.5
Lift weight kg 32.9 32.9 32.9 32.9 32.9 32.9
SEDBUK 2009 Band 89.8 89.8 89.8 91.9 91.9 91.9
Table 5 Technical data
* Greenstar CDi Compact boilers are fitted with a flow
regulator set to achieve a 40°C temperature rise. This
ensures comfortable bathing during the colder winter
months.
** All Worcester Greenstar boilers are tested in an
acoustic chamber to sound level and there may some
differences in situ dependant on installation site i.e.
corners of rooms, fabric of property walls.
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