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3.7
Firing rate
The burner can work in two ways: low and high fire (Fig. 3).
MAXIMUM OUTPUT must be selected in area A.
MINIMUM OUTPUT must be selected in area B.
Note:
The firing rate areas given in Fig. 3 have been reduced by 10%
with respect to the maximum range that can be reached.
3.8
Minimum furnace dimensions
The firing rates were set in relation to certified test boilers.
Fig. 4 indicates the diameter and length of the test combustion
chamber.
20109674
Technical description of the burner
Burner power output
Example
Output 2579 MBtu/hr: diameter 24 inch - length 6.6 ft.
Diameter (inches)
8
GB
The firing rate area values have been obtained con-
sidering an ambient temperature of 68 °F, and an
atmospheric pressure of 394" WC and with the
combustion head adjusted as shown on page 20.
WARNING
D2422
Fig. 3
D2919
Fig. 4
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