A.O. Smith HSE-SDS 6 User Manual page 7

Figure 2
Part Description
1 Cold water inlet pipe with diffuser
2 Hot water outlet pipe
3 Safety Valve*
4 Temperature Control Knob
5 Decorative Front Panel
6 Blue Cap
7 Red Cap
8 Anode
9 Heating Element
10 Thermal Cut-out
11 Thermostat
12 Wall mount slot
*Safety valve has been factory fit with the water heater and set at 0.8 MPa (8 Bar) rated pressure.
Do not tamper or detach the safety valve from the water heater.
CAUTION
WARNING
4