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4.3
Combi V3 and Combi Max oil boilers using class C2 kerosene
Note: All boilers are despatched for use with kerosene.
Combi 70 V3 and Combi 90 V3 (Riello RDB1 burner)
Heat Output
Net Heat Input
(kW)
(Btu/h)
(kW)
(Btu/h)
20.5
70 000
22.5
76 900
26.4
90 000
27.6
94 200
Combi Max (Riello RDB2.2 burner)
Heat Output
Net Heat Input
(kW)
(Btu/h)
(kW)
(Btu/h)
33.3
113 600
36.8
125 500
4.4
Combi V3 and Combi Max oil boilers using class D gas oil
Combi 70 V3 and Combi 90 V3 (Riello RDB1 burner)
Heat Output
Net Heat Input
(kW)
(Btu/h)
(kW)
(Btu/h)
20.5
70 000
22.5
76 900
26.4
90 000
27.9
95 250
Combi Max (Riello RDB2.2 burner)
Heat Output
Net Heat Input
(kW)
(Btu/h)
(kW)
(Btu/h)
32.9
112 463
36.0
122 910
Notes:
1
The data given above is approximate only. The Kerosene table is based on the boiler being used with a low level balanced flue.
2
The above settings may have to be adjusted on site for the correct operation of the burner.
3
Gas Oil is not suitable for use with a low level balanced flue, unless the flue terminal is higher than 2.0 m above outside
ground level.
4
The installer must amend the boiler data label if the type of fuel and nozzle used are changed.
5
Net flue gas temperatures given are ± 10%.
6
** Net thermal efficiency (BSRIA).
7
Flue gas temperatures taken at combustion door test point will be approximately 25°C higher for the Combi 90 V3 and
Combi Max.
8
Flue gas temperature taken at the top of the boiler will be 20°C higher for the Combi 70 V3.
4.5
Approximate air damper settings
Note: Burners are supplied factory set at the outputs shown.
When commissioning, or when the type of fuel is changed, the air damper must be adjusted to obtain the correct CO
level and the Installer must amend the data label.
10
4 - BOILER TECHNICAL INFORMATION
Net eff. **
Head
(%)
type
93.0
LD2SX short
LD3
95.8
Net eff. **
Head
(%)
type
T5
91.5
Net eff. **
Head
(%)
type
LD2SX short
92.0
94.6
LD3
Net eff. **
Head
type
(%)
T5
91.5
Combi V3, Combi Max and Vortex Combi models
Oil press.
Smoke
Fuel flow
(bar)
No.
rate (kg/h)
8.5
0 - 1
1.87
9.5
0 - 1
2.40
Oil press.
Smoke
Fuel flow
(bar)
No.
rate (kg/h)
9.0
0 - 1
3.10
Oil press.
Smoke
Fuel flow
(bar)
No.
rate (kg/h)
12.0
0 - 1
1.60
12.0
0 - 1
1.97
Oil press.
Smoke
Fuel flow
(bar)
No.
rate (kg/h)
11.0
0 - 1
3.02
Net flue gas
Flue gas mass
temp. (°C)
flow rate (kg/h)
211
34.8
180
38.7
Net flue gas
Flue gas mass
temp. (°C)
flow rate (kg/h)
190
51.5
Net flue gas
Flue gas mass
temp. (°C)
flow rate (kg/h)
200
34.8
200
38.7
Net flue gas
Flue gas mass
temp. (°C)
flow rate (kg/h)
200
51.5
CO
2
(%)
11.5
12.0
CO
2
(%)
12.0
CO
2
(%)
11.5
12.0
CO
2
(%)
12.0
2
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