Removing The Fan; Removing The Gas Valve - Ariston Combi A 24 MFFi Installation And Servicing Instructions

18.2.5 Removing the fan

1. Carry out step 18.1.1;
2. Remove the air gas manifiold as in
step 18.2.1 (Fig. 67);
Fig. 67

18.2.6 Removing the gas valve

1. Carry out step 18.1.1;
2. Remove the air gas manifiold as in
18.2.1 (Fig. 70);
Fig. 70
5. Remove the gas valve from the
venturi. (Fig. 73);
6. Reassemble in reverse order;
7. The gas valve settings will need to
be adjusted (see Section 14.3 page
28);
8. Reinstate the gas supply and test for
tightness on reassembly.
Fig. 73
Supplied By www.heating spares.co Tel. 0161 620 6677
3. Unscrew the two screws from the
venturi J and remove with the gas
valve (Fig. 68);
J
3. Unscrew the three screws L on the
air/gas pipe and remove (Fig. 71);
L
4. Unscrew the three screws K on the
air/gas pipe and remove (Fig. 69);
5. Reassemble in reverse order.
K
Fig. 68
4. Unscrew the three screws holding
the gas valve on the venturi (Fig.
72);
Fig. 71 Fig. 72
Fig. 69
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