A.O. Smith 750 & 1000 Boiler User Manual


 
7
LB/LW NATURAL GAS TRAIN/BLOWER ASSEMBLY - MODEL 1000
DETAIL BACK VIEW
Item Description Model 1000
1 .....Blower ............................................................... 192195
2 .....Blower Adapter Assembly .............................. 192215-1
3 .....Blower Manifold Assembly ............................... 192217
4 .....Bracket, Blower ................................................. 210214
5 .....Clamp, Hose .................................................. 191794-3
6 .....Elbow, 1-1/4" ..................................................... 192216
7 .....Elbow, Union 1-1/4"......................................... 86506-1
8 .....Flanged Observation Port ................................ 191573
9 .....Gasket, Blower Air Inlet .................................... 192213
10 ....Gasket, Burner .................................................. 191564
11 ....Gasket, Manifold ............................................... 191565
12 ....Gasket, Port (1/8" Thick) ................................... 191576
13 ....Nut, Hex 1/4", Serrated ..................................... 210226
14 ....Manifold Assembly - Air/Gas ............................ 192309
15 ....Nipple, Close 1/8" .......................................... 191147-3
16 ....Nipple, Close Stainless ................................. 191772-1
17 ....Nipple, Tapped ................................................ 86505-3
18 ....Nipple, 1-1/4" x 38-1/2" ................................... 86505-28
19 ....Nipple, 1-1/4" x 28-3/4" ................................... 86505-27
20 ....Nipple, 1-1/4" x 2" .............................................. 86505
21 ....Nipple, 1-1/4" x 3" ............................................ 86505-2
22 ....Nipple, 1-1/4" x 4" ............................................ 86505-6
23 ....Nut, Hex 1/4" ................................................... 191817-1
Item Description Model 1000
24 ....Orifice, Air (Series 300 - Nat. Gas)................. 192737-3
24 ....Orifice, Air (Series 30211 - L.P. Gas) ............ 192737-2
25 ....Orifice, Union (See Orifice Table Below)
26 ....Plug, 1/8" Pipe .................................................... 3348
27 ....Port, Observation Lower ................................... 191572
28 ....Port, Observation Upper ................................. 191572-1
29 ....Screen, Air Inlet............................................... 192220-1
30 ....Screw, Cap 1/4" .............................................. 190960-2
31 ....Srew, Flathead #8-32 x 1/2" ............................. 191542
32 ....Screw, Flathead #8-32 x 3/4" ......................... 191542-1
33 ....Switch, Low Pressure .................................... 191149-1
34 ....Shutter, Blower ................................................. 192593
35 ....Shutter Flange .................................................. 192592
36 ....Tee, 1/8" ............................................................. 40119
37 ....Tee, Pressure ...................................................191633
38 ....Tubing, Pressure .............................................. 191562
40 ....U-Bolt Assembly (Gas Train) ......................... 191938-3
41 ....Valve, Main Gas ............................................... 78481-3
42 ....Valve, Firing....................................................... 3423-3
43 ....Valve, Solenoid Gas .........................................192189
44 ....Washer, Plain ................................................. 76820-18
42 ....Manual, Shut-off Valve ...................................... 211695
*Item Not Illustrated.
LEGEND ORIFICE TABLE
Natural Size Elevation
Gas (inches) (Feet)
192222 0.555 0-2000
192222-1 0.537 2001-3000
192222-2 0.533 3001-4000