Riello RDB - Technical Description of the Burner; Technical Data; Burner Description; Burner Equipment

3055
8
GB
Technical description of the burner
4.1 Technical data
Tab. A
4.2 Burner description
1 Pump
2 Control box
3 Reset button with lock-out lamp
4 Flange with insulating gasket
5 Air damper adjustment screw
6 Snorkel (BF)
7 Pump pressure adjustment screw
8 Pressure gauge port
9 Photoresistance
4.3 Burner equipment
Flange with insulating gasket .............................................. No. 1
Screws for flange to be fixed to boiler ................................. No. 4
Screw and nuts for flange ................................................... No. 1
Hoses with nipples .............................................................. No. 1
Screw of by-pass pump....................................................... No. 1
Plastic air cover................................................................... No. 1
4 pin plug............................................................................. No. 1
Hexagonal key .................................................................... No. 1
4 Technical description of the burner
Type 744T3K 744T5K
Output - Thermal power
(with air at 20 °C)
1.8 - 3.5 kg/h
21.3 - 42 kW
2.8 - 4.5 kg/h
33.5 - 54 kW
Fuel
Kerosene, viscosity 1.6 – 6 mm
2
/s at 20 °C (Hi = 11.97 kWh/kg)
Electrical supply Single phase, ~ 50Hz 230 V ± 30%
Motor Run current 0.85 A – 2700 rpm – 283 rad/s
Capacitor 4.5 F
Ignition transformer Secondary 8 kV – 25 mA
Pump Kerosene, maximum pressure 10 bar (145 psi)
Absorbed electrical power 0.16 kW
1
D4138
4
6
5
2
3
7
8
9
Fig. 1
WARNING
The hoses supplied with this burner set for
Kerosene use are not suitable for use with Gas oil
containing a Bio blend.
Please refer to the spare part list for the specific
hoses suitable for bio fuel use.
In case of use with gas oil containing up to 30%
Bio blend, it will be essential to use flexible oil
lines suitable for bio fuel use.
Please contact Riello for further information.