49
Fig. 74
Fig. 76
Fig. 75b
Fig. 79 Fig. 80
M1N18.2.7 Removing the heat exchanger
1.Carry out step 18.1.1;
2. Remove the air gas manifiold as in
18.2.1(Fig. 74);
3.Remove the flow pipe clip and
unscrew the pump nut (Fig. 75a &
75b);
4.Remove the flow and return pipes
and the condense drain pipe from
the heat exchanger. (Fig. 75c);
18.2.8 Removing the spark generator
1.Carry out step 18.1.1;
2. Disconnect the ignition electrode,
live, neutral and earth cables from
the ignitor (Fig. 79);
3. Remove the screw Nfrom the ignitor
and remove (Fig. 80);
4. Reassemble in reverse order.
Fig. 75c
Fig. 75a
Fig. 78
5. Remove the two bolts securing the
exchanger (Fig. 76);6. Remove the screw M2; then rotate
clockwise the bearing frame (Fig. 77); 7. Remove the heat exchanger by
slightly rotating. (Fig. 78);
8. Reassemble in reverse order.
Fig. 77
M2