Summit GC424BGL - Manual (Page 10)

9
CONVERSIONS
Replacing Nozzles
The burners can be adapted to suit different
types of gas by fitting the nozzles that corres-
pond to the gas used. To do this, it is
necessary to remove the burner heads and
use a straight key "B", to unscrew the nozzle
"A" (see Fig. 7) and replace it with a nozzle
corresponding to the gas used.
Be sure the nozzle is seated tightly.
After making these replacements, the technician must regulate the burners
as described in Adjustments on the previous page and apply the label
corresponding to the new gas type in place of that previously applied. This
label is contained in the spare nozzle bag.
For ease of the fitter, we have prepared a table indicating the flow capacities, the
heat capacities of the burners, the diameter of the nozzles and the working
pressure for the various types of gas.
Burners
Gas
Normal
Pressure,
inches water
column
Injector
Diameter,
1/100 mm
Nominal Heat
Input (Btu/h)
No. Description Min. Max.
2 Rapid
Propane HD-5
Natural Gas 11
7
83
145
2400
2400 8350
8350
3 Semirapid
Propane HD-5
Natural Gas 11
7
58
100
2050
1700 4350
4350
4 Semirapid
Propane HD-5
Natural Gas 11
7
58
100
2050
1700 4350
4350
5 Auxiliary
Propane HD-5
Natural Gas 11
7
50
90 1200
1400 3400
3400
2
5
2
5
4
3
Arrangement
of Burners
Fig. 7