Riello RS 280 - Page 9

Technical description of the burner
7
20122392
GB
Tab. C
(*)
Firing Rate for C-ETL Canadian Listing
(1)
Reference conditions: ambient temperature 68 °F (20°C) - Barometric pressure 394” WC - Altitude 329 ft.
(2)
Pressure at test point 5)(Fig. 3) with zero pressure in the combustion chamber and maximum burner output.
(3)
Sound pressure measured in manufacturer’s combustion laboratory, with burner operating on test boiler and at maximum rated output.
(4)
Equivalent Btu values based on 1 USGPH = 140,000 Btu/hr.
Model RS 410/E RS 510/E
Output delivery
(1)
High
kW 1.172 4.719 4.247* 1.465 5.627 5.064*
Mbtu/hr
(4)
4.000 16.100 14.490* 5.000 19.200 17.280*
Low
kW 479 - - 586 - -
Mbtu/hr
(4)
1.635 - - 2.000 - -
Fuel Natural gas
Gas max. delivery SCFH 15.941 19.010
Gas pressure at max delivery
(2)
"WC 26.0 32.6
Operation Low-high or modulating
Standard applications Boilers: water, steam, thermal oil
Ambient temperature °F 32-104 (0-40°C)
Combustion air temperature °F Max. 140 (60°C)
Noise level (gas)
(3)
dBA 82,9 83,6