A.O. Smith GDHE-50 SERIES Instruction Manual page 12

Power vent/power direct vent gas models with direct spark ignition
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1:
Control Assembly
2:
Blocked Intake Switch
3:
Blocked Outlet Switch
4:
Blower Prover Switch
5:
Blower Assembly
6:
Burner Assembly
7:
Flame Sensor
8:
Igniter Assembly
9:
Junction Box
10: Gas Control Valve Assembly
11: Display Board
12: Top Plastic Enclosure
13: Display Enclosure
** 14: Exhaust Elbow Assembly
** 15: Condensate Tubing
16: Off/On Switch
17: Display Label
18: Hot Water Outlet
19: Gas Supply
20: Main Manual Gas Shutoff Valve
21: Union
22: Inlet Water Shutoff Valve
23: Cold Water Inlet
24: Inlet Dip Tube
25: T/P Relief Valve
26: Rating Plate
27: Labels
28: Drain Valve
** 29: Vent Terminal
30: Drain Pan
31: Anode Rod
32: Insulation
33: Temperature Probe
34: Access Door
35: Spark Module
FEATURES AND COMPONENTS (CONT.)
12

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