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How to read the burner "Performance curve"
To check if the burner is suitable for the boiler to which it must be installled, the following
parameters are needed:
furnace input, in kW or kcal/h (kW = kcal/h/860);
backpressure (data are available on the boiler ID plate or in the user's manual).
Example:
Furnace input: 600kW
Backpressure: 4 mbar
In the "Performance curve" diagram, draw a vertical line matching the furnace input value
and an horizontal line matching the backpressure value. The burner is suitable if the inter-
section point A is inside the performance curve.
Data are referred to standard conditions: atmospheric pressure at 1013 mbar, ambient tem-
perature at 15° C.
Performance Curves
HRX92R-FGR
HRX512R-FGR
HRX515-FGR
To get the input in kcal/h, multiply value in kW by 860.
Data are referred to standard conditions: atmospheric pressure at 1013mbar, ambient temperature at 15° C
NOTE: The performance curve is a diagram that represents the burner performance in the type approval phase or in the laboratory
tests, but does not represent the regulation range of the machine. On this diagram the maximum output point is usually reached by adj-
suting the combustion head to its "MAX" position (see paragraph "Adjusting the combustion head"); the minimum output point is rea-
ched setting the combustion head to its "MIN" position. During the first ignition, the combustion head is set in order to find a
compromise between the burner output and the generator specifications, that is why the minimum output may be different from the Per-
formance curve minimum.
Tipo P60 Mod. M-xx.x.IT.A.0.50 - M-.xx.x.IT.A.0.65
8
7
6
5
4
3
2
1
0
-1
100
200
HRX92-FGR
kW
HRX512-FGR
kW
HRX520-FGR
kW
13
PART I: SPECIFICATIONS
Campo di lavoro bruciatori
A
300
400
500
600
700
Power kW
Potenza kW
800
900
kW
kW
kW
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