Combustion Analysis Check; Cleaning The Condensing Heat Exchanger And Burner - Biasi Riva Advance Combi Installation & Operation Instructions

17. Annual Maintenance Cont.
• Close the inlet valve
• Open the system domestic hot water valves
If it is necessary to carry out a combustion
analysis remove the plugs indicated in Fig.
17.4.
Reference tables are given in the "Technical
Information" section page 9.

17.6 Cleaning the condensing heat exchanger and burner:

To remove the burner-fan group D (Fig. 17.6):
• Take off the front and side panels of the
case.
• Remove the sealed chamber lid.
• Disconnect the connectors of the ignition
electrodes E and detection electrode F
(Fig. 17.6).
• Disconnect the rubber pipe G (Fig. 17.5).
• Unscrew the gas connector H (Fig. 17.6).
• Unscrew the connector I and remove the
gas pipe J (Figure 17.5).
• Leave the air box with the air hose
clamped to the water pipe.
• Remove the nuts K (Fig. 17.6) and the
burner-fan group D.
G
I
J
Figure 17.5 (right side of the fan)
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RIVA ADVANCE COMBI MANUAL
17.4 Emptying the Domestic Hot Water circuit:

17.5 Combustion analysis check:

Figure 17.4
K
E
D
H
F
Figure 17.6
• Disconnect the connector of the fan L by
pressing the plastic hook M placed on the
Flue analysis
points
K
F