Firing Rates; Test Boiler; Commercial Boilers - Riello RL 25 BLU TC Montage- Und Bedienungsanleitung

(A)
(B)
150 mm MAX
(C)
Thermal power – kW
Thermal power – kW
FIRING RATES (A)
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The burners can work in two ways: one-stage
and two-stage.
1st stage DELIVERY must not be lower than the
minimum limit in the diagram.
2nd stage DELIVERY must be selected within:
• Area A for applications in accordance with EN
This area provides the maximum delivery of the
burner in relation to the pressure in the combus-
tion chamber.
TEST BOILER (B)
The firing rates were set in relation to special test
boilers in accordance with the methods defined
in EN 267 standards.
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Figure (B) indicates the diameter and length of
the test combustion chamber.
Example
Delivery 16 kg/hour:
diameter = 40 cm, length = 1 m.
Whenever the burner is operated in a much
smaller
chamber, a preliminary test should be per-
formed.
COMMERCIAL BOILERS (C) -
The burners are designed exclusively for com-
bustion chambers with flue gas outlet from the
bottom (for example three flue gas passes), ac-
cessible via the door.
Max thickness of the frontal boiler wall: 150 mm.
D814
D1863
7
267;
Important:
the FIRING RATE area values have
been obtained considering a surround-
ing temperature of 20 °C, and an atmos-
pheric pressure of 1000 mbar (approx.
100 m above sea level) and with the
combustion head adjusted as shown on
page 9.
commercially-available combustion
Important