Riello 466 M1 Installation, Use And Maintenance Instructions page 42

2.4 OVERALL DIMENSIONS
890
*
It is possible with a spacer, upon request.
Boiler front plate drilling
260
230
M14
D2732
2.5 WORKING FIELD
D2709
When the burner operates with only one or two nozzles, the pressurization conditions are improved and no
problems arise.
2915842
Burner
*
213
323
433
99
COMBUSTION HEAD PROJECTION
For the combustion head projection carefully follow
the boiler manufacturer indications.
A proper protection with refractory material on the
combustion head projecting into the combustion
chamber shall be made, when boilers with frontal
smoke box are used.
M14
(3 nozzles in operation)
396
Thermal power
4
GB
796
D2731
Working field:
limit
safety
kg/h
kW