E Combi ONE Installation Manual

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MAINTENANCE GUIDE
3.10 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
3.9 LEFT HAND HYDRAULIC BLOCK ASSEMBLY
1
2
3
4
Legend:
1 - By-pass assembly
2 - Safety valve
3 - Central heating ow
4 - Domestic hot water outlet
3
4
5