Riello RTQ 953 - Page 7

7
GENERAL INFORMATION
GENERAL INFORMATION
IMPORTANT NOTES FOR BURNER INSTALLATION
Before xing the burner to the boiler, make sure that:
− The door opens the right way (see the relevant sections
for details on how to reverse the door)
− The length (L) of the burner xing bolts is less than (S),
i.e. the total depth of the seal, plates and washer. Longer
bolts can cause the door to warp, compromising its
ability to seal the boiler hermetically and permitting
the release of combustion fumes.
To ensure correct burner installation, also refer to the burner’s
own manual.
L < S
S
L
If you are installing a new boiler but re-using an old burner,
always perform the following checks:
− Make sure that the performance of the old burner is ad-
equate for the requirements of the boiler
− Make sure that the length and diameter of the burner
nozzle are as specied in the following table.
9
When you nish installing the burner in the boiler, ll the
gap between the burner’s blast tube and the refractory ma-
terial in the door with the ceramic insulation (A) supplied
with the boiler.
9
Blast tubes must not exceed the specied lengths by more
than 20%.
BURNER PLATE
R RTQ boilers are equipped with burner plates with no holes.
These plates accept the recommended burners. The burner
plates must be drilled on installation according to the burner
xing holes.
A
Ø
L
RTQ
953
1074 1308 1500 1700 2000 2336
Burner head
L min. (mm)
280 320 340 365 365 375 375
Hole in door
Ø (mm)
205 260 280 300 300 350 350
0
Do not re-use old burners if their blast tube lengths are be-
low those specied in the table.