A.O. Smith Innovo 12-160, Installation, Service & Maintenance Manual

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Make sure that there is no grit or other blockages in the drain pipe (3).
Make sure that the slope of the drain pipe is correct; 5 mm/m.
Install the condense trap onto the condensate drain.
Fig. Condensate drain
1 2 3
1. Condensate drain
2. Condense trap
3. Drain pipe
11.4 Gas-side maintenance
Do gas side maintenance when the water heater does not operate correctly, the air
pressure differential is not correct and/or the CO
2
value is not correct.
To do gas side maintenance:
Clean the burner (see section 11.4.1)
Clean the combustion chamber (see section 11.4.2)
11.4.1 Clean the burner
Remove the burner engine:
Close the gas control valve, refer to Installation diagram (see section 8.3).
Disconnect all plugs from the burner engine (1).
Disconnect the gas supply pipe (2).
Loosen the two bolts (3) to disconnect the burner engine (4) from the adapter.
Take the burner engine out of the water heater.
Fig. Remove the burner engine
2 1
4
3
1. Plugs on burner
engine
2. Gas supply pipe
3. Bolts
4. Burner engine
6.
7.
8.
•
•
1.
2.
3.
4.
5.
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