A.O. Smith 110 Indoor Service Manual page 9

No. Description
20 Surge box
21 Outlet drain plug
22 Air-fuel ratio rod (AFR rod)
23 Flame rod
24 Igniter rod
Inlet drain plug
25
(water filter)
120 VAC
26
Power ON-OFF switch
27 Gas valve assembly
28 Manifold port
29 Gas inlet port
30 Exhaust chamber
110 Indoor / 110 Outdoor Service Manual
Item# in
components
diagram
703 319143-168
410 319143-199
108 319143-339
108 319143-339
109 319143-373
405 319143-197
706 319143-141
319143-169 (LP model)
102
319143-165 (NA model)
N/A
N/A
319143-162
Included in (110 Indoor)
401
319143-166
(110 Outdoor)
9
AOS
Part # For other models
N/A
N/A
CONFIDENTIAL
Ver. 1.01
Common parts
310, 510
310, 510, 910
310, 510
520, 310, 510