A.O. Smith ATX-199 Instruction Manual page 62

Blue Flame
Flame blowing up
Figure 59. Burner Flame Visual Check
DRAINING THE WATER HEATING UNIT
1.
2.
Turn on again.
3.
4.
Large Drain Plug
with Filter
Small Drain Plug
Water Inlet Valve
Figure 60. Drain Plugs
5.
6.
7.
8.
9.
10.
Normal Condition
Abnormal Condition
(Air Rich)
Gas Inlet Valve
DRAINING AND FLUSHING THE STORAGE TANK
Components (page 7)
Draining the Water Heater Storage Tank
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Flushing the Water Heater Storage Tank
1.
2.
3.
4.
5.
6.
tank.
7.
8.
9.
62
Features and
Burn hazard.
Hot water discharge.
Keep clear of Temperature-
Pressure Relief Valve
discharge outlet.