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MAINTENANCE GUIDE
3.9 D.H.W. Flow switch assembly
Tools
TIME 10 min
Drain the boiler (see 3.3). Remove the clip and pull the fl ow
switch assembly upward.
1
2
3.11 Secondary heat exchanger
Tools
TIME 10 min
Drain primary and domestic hot water circuits.
Remove the silencer.
1
Remove the two screws and remove the heat exchanger
2
3.10 LEFT HAND HYDRAULIC BLOCK ASSEMBLY
1
2
3
4
Legend:
1 - Safety valve
2 - Central heating fl ow
3 - Domestic hot water outlet
4 - Secondary heat exchanger
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