GENERAL
8
b
See the instruction manual provided with the burner for further information on:
- burner installation
- electrical connections
- burner adjustments.
b
1 - Long heads and burner plates are required for the correct installation and coupling of the burners.
2 - If a two stage burner is installed, 1st stage heat input must not be less than 70% of total heat input. With liquid
fuel burners equipped with 2 nozzles, it is therefore important to choose the correct first stage nozzle.
3 - In Italy, the Decree of the President of the Council of Ministers of the 2nd October 1995 requires that heating
systems with heating power of less than 3 MW use fuel oil with a sulphur content of less than 0.3 % by weight.
A
Ø
L
IMPORTANT NOTES FOR BURNER
INSTALLATION
Before fixing 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 fixing bolts is less than
(S), i.e. the total depth of the seal, plates and washer.
Longer bolts can cause the door to warp, compro-
mising 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.
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
adequate for the requirements of the boiler
- Make sure that the length and diameter of the burner’s
blast tube are as specified in the following table.
RECOMMENDED BURNERS
DIMENSIONS (mm)
RTQ 3S
35
55
70
L min.
115
115
170
Ø hole in door
110
110
140
L < S
S
L
