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maintenance guide
42
1
2
3
4
5
Legend
1. Left hand hydraulic block
2. By-pass assembly
3. Safety valve
4. Central heating ow
5. Domestic hot water outlet
Tools
Time
10 min
1
Drain primary and domestic hot water circuits.
Remove the two screws and remove the heat exchanger
Left hand Hydraulic block assembly
Secondary Heat Exchanger (E-COMBI)