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

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7 Water heater
7.1 Structure of the water heater
The water heater has the following main components:
Controller (8) The controller monitors and manages all internal
processes of the water heater for a safe
operation.
Operator interface (1) To control the water heater and to verify the
status, the operator interface has 5 buttons and
a 3-character display. Refer to Operator interface
(see section 3.1).
Tank (9) The water is stored and heated up in the tank.
Burner engine (2-8) The burner engine ignites the air and gas
mixture to heat up the water.
Fig. Components water heater
1
5
4
3
2
6
7
8
9
12
10
11
13
14
1. Operator interface
2. Flame rod
3. Burner
4. Hot surface igniter
5. Fan
6. Venturi
7. Gas control valve
8. Controller
9. Tank
10. Combustion chamber
11. Heat exchanger
12. Condensate drain
13. Drain tap
14. Air inlet screen
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