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4.8
Nozzle
The burner complies with the emission requirements of the UL 296
standard.
In order to guarantee that emissions do not vary, recommended
and/or alternative nozzles specified by Riello in the Instruction and
warning booklet should be used.
It is advisable to replace nozzles every year dur-
ing regular maintenance operations.
WARNING
The use of nozzles other than those specified by
the Manufacturer and inadequate regular main-
tenance may result into emission limits non-
conforming to the values set forth by the regu-
lations in force, and in extremely serious cases,
into potential hazards to people and objects.
CAUTION
The manufacturing company shall not be liable
for any such damage arising from nonobser-
vance of the requirements contained in this
manual.
4.8.1
Recommended nozzles
•
BERGONZO A4 45°
•
DELAVAN VARIFLO 45° and 60°
•
FLUIDICS KC2 30° and 45°
4.8.2
Nozzle assembly
In order to assemble the nozzle, proceed as follows:
remove screw 1)(Fig. 12) and extract the nozzle assembly 2);
install the nozzle 1)(Fig. 13);
fitting the wrench through the central hole in the flame stability
disk or loosen screws 1)(Fig. 14);
remove disk 2)(Fig. 14) and replace the nozzles using the
wrench 3)(Fig. 14).
Do not use any sealing products such as gas-
kets, sealing compound, or tape.
Be careful to avoid damaging the nozzle seal-
ing seat.
WARNING
The nozzles must be screwed into place tightly
but carefully.
The nozzle for low fire operation is the one
lying beneath the firing electrodes.
Make sure that the electrodes are positioned
as shown in Fig. 17.
Installation
D9544
19
GB
D1122
D9543
Fig. 12
Fig. 13
Fig. 14
20031446
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