Output Supplied - Riello G490 MXK Installation, Use And Maintenance Instructions

3.8

Output supplied

The charts will allow you to determine the output supplied either
by reading the number of rotations or by reading the downstream
pressure of the gas valve (Fig. 13 on page 14).
Example:
Operation with PREMIX G490 MXK
Natural gas G20 PCI 9.45 kWh/Sm
Pressure on point 1 = - 5.2 mbar (See first diagram).
The burnt power corresponds to 350 kW.












 









Technical description of the burner
3
;
2
VS
R
F
9
Going back in vertical in the second diagram, until intercrossing
the straight line, you can estimate the value of the number of ro-
tation
on the scale of the left-hand ordinates: in this case 4000 turns/
min.
For an exact reading of the number of rotations, it is available a
control box interface kit.
NOTE:
The burner can operate both with G25 and LPG without any ad-
ditional kit, however the gas valve needs to be regulated accord-
ingly.
DOC-0078541
G25
G20
LPG
1
VR
GB
Thermal power - kW
Thermal power - kW
D7789
Fig. 4
Fig. 5
20113083