Firing Rates; Test Boiler - Roca TECNO 34-L Instrucciones De Instalación, Funcionamiento Y Mantenimiento

TECNO 34-L
TECNO 44-L
(A)
(B)
FIRING RATES (A)
The TECNO 34-L & TECNO 44-L model burners
can work in two ways:
stage.
1st stage OUTPUT must be selected within
area A of the adjacent diagrams.
2nd stage OUTPUT must be within area B. This
are supplies the maximum output of the burner
according to the pressure in the combustion
chamber.
The work point may be found by plotting a verti-
cal line from the desired delivery and a horizon-
tal line from the pressure in the combustion
chamber The intersection of these two lines is
the work point which must lie within area B.
Attention:
The FIRING RATE area values have been
obtained considering a surrounding temperature
of 20 °C, and an atmospheric pressure of 1013
mbar (approx. 0 m above sea level) and the
combustion head adjusted as shown on page 7.
TEST BOILER (B)
The firing rate was set in relation to special test
boilers in accordance with the methods defined
in EN 267 standards.
Figure (B) indicates the diameter and length of
the test combustion chamber.
Example Output 35 kg/hour:
diameter = 50 cm; length = 1.5 m.
Whenever the burner is operated in a much
smaller
chamber, a preliminary test should be per-
formed.
D3866
D454
4
one-stage and two-
commercially-available combustion