Biasi Riva Advance Combi Installation & Operation Instructions page 48

15. Commissioning Cont.
Figure 15.15
• Make sure that the display is indicating a
heat request.
• Collect a large amount of domestic hot
water by opening the cocks.
• Compare the CO
gas analyser with the one in the table CO
at Q. min. section "Technical Information"
page 9.
• To calibrate the boiler CO
gas pressure) completely unscrew the
protective brass cap B and turn the Allen
screw ø 4 mm below Figure 15.16, turning
it clockwise increases the CO
A
B
C
Figure 15.16
RIVA ADVANCE COMBI MANUAL
2
(burner
2
.
2
Checking the maximum burner pressure.
• Turn the hot water temperature knob 8 to
the maximum Figure 15.17 and check the
CO value.
2
MIN
• The LCD display signals the variation
with the symbols shown in Figure 15.18
turning on alternately. (Example: heating
thermal power at maximum).
2
• Compare the CO
smoke analyser with the one in the table
section "Technical Information" page 9.
CO at Q. nom.
2
• If the two values do not coincide, turn
the RQ maximum adjustment screw (A
in Figure 15.16) on the gas valve and
calibrate the CO
in the table in the section "Technical
Information" page 9. Turning it clockwise
decreases the CO
• Check that the value of the CO
does not lie outside of the value range in
MAX
8
Figure 15.17
Figure 15.18
value read on the
2
to the same value shown
2
.
2
at Q. min.
2
48