Checking The Burner Ignition; Adjustment Of The Useful C.h. Output - Biasi Riva Plus Installation And Operation Instructions Manual

15. Commissioning Cont.
• Turn the boiler OFF.
• Open the gas valve outlet
pressure test point
(figure 15.5) and connect
the gauge.
• Turn the boiler
positioning the
selector B in the position
shown in figure 15.7 and
ensure that the
thermostat is set to "heat
demand".
Figure 15.7
• Loosen screws
remove the service panel
(figure 15.8).
D
D
D
Figure 15.8
• Turn the boiler OFF.
• Open the gas valve outlet
pressure test point
(figure 15.5) and connect
the gauge.
• Turn the boiler
positioning the
selector B in the position
shown in figure 15.7 and
ensure that the
thermostat is set to "heat
demand".
40 Riva Plus Manual

15.6 Checking the burner ignition:

• Watch
check to see if the ignition
pressure
15
corresponds to the values
given
Data. Turn off the boiler
ON
and reignite it by turning
function
the function selector B to
the 0 position and then
back to that indicated in
room
figure 15.7.
• Repeat this process two to
three times leaving
B
second intervals between
each ignition. Check the
ignition
visually check
burner lights uniformly and
D and
in a controlled manner.
• To carry
adjustment
function selector 3 to the
OFF position (Fig. 15.9)
and use the device (ACC).

15.7 Adjustment of the useful c.h. output:

• Loosen
remove the service panel
(figure 15.8).
15
• To carry
adjustment
adjustment device (RISC)
ON
with the
function
screwdriver.
• By rotating
room clockwise
increases.
• Adjust the gas pressure at
the burner to the value
according to the useful c.h.
output wanted (Tab. 15.1).
the gauge and
registerd
in the Technical
30
pressures and
that the
out the
move the
screws D and
out the
use the
help of a
the device
the pressure
1
Figure 15.9
• Adjust the gas pressure at
the injectors to the value
indicated in the tables of
section 2. By rotating the
device clockwise
pressure increases.
• After the adjustment
operations bring
selector 3 of figure 15.9
back to the normal position
(ON).
• Reassemble the service
panel.
• Close the gas valve outlet
pressure test point
(figure 15.5).
• Reassemble the
pannel of the case.
Important: after
checks all of the test
points must be sealed.
• Reassemble the service
panel.
• Close the gas valve outlet
pressure test point
(figure 15.5).
• Reassemble the
pannel of the case.
+
RISC
+
ACC
ON
2 3
4
OFF
the
the
15
front
the
15
front