Verona VEFSGE 304 SC, Installation Instructions Manual

Page: 17 / 24

17
2
OPERATIONS TO BE PERFORMED WHEN SUBSTITUTING THE
INJECTORS
• Remove the pan supports, the burner caps and the flame spreaders.
• Dual burner only (fig. 2.9): Unscrew the no.3 fixing screws “ A ” and remove the inner
crown flame spreader “
B
”; then unscrew the no.2 fixing screws “
C
” and remove the
cover plate “ D ”.
• Using a wrench substitute the nozzle injectors “ J
1
”, “ J
2
” and “ J
3
” (figs. 2.8, 2.9) with
those most suitable for the kind of gas for which it is to be used.
• Dual burner only (fig. 2.9): Refit the cover plate “ D ” and screw the no.2 fixing screws
“ C ”; then refit the inner crown flame spreader “ B ” and screw the no.3 fixing screws “ A ”
• Refit the flame spreaders, the burner caps and the pan supports.
The burner are conceived in such a way so as not to require the regulation of the
primary air.
SECOND ORIFICE
DEUXIEME ORIFICE
A
A
A
B
C
C
D
J
2
J
3
Fig. 2.9
J
1
Fig. 2.8
SEMI-RAPID BURNER
DUAL BURNER
INJECTORS TABLE
NOMINAL
POWER
REDUCED
POWER
LP/PROPANE
11” W.C.P.
NATURAL GAS
4” W.C.P.
BURNERS BTU/hr BTU/hr
Ø injector
[1/100 mm]
Ø injector
[1/100 mm]
Semirapid (SR) 8000 1500 85 139
Dual (D)
Inner crown 2100 1000
42 (*)
115 (**)
70 (*)
200 (**)
Inner & outer crown 17000 6500
(*) inner crown (“ J
2
” in figure 2.9)
(**) outer crown (“ J
3
” in figure 2.9)