LB/LW NATURAL GAS TRAIN/BLOWER ASSEMBLY- MODEL 750
Item | Description | Model 750 | Item | Description | Model 750 | ||
1 | Blower | 21 .... | Nut, Hex 1/4" | 170272 |
| ||
2 | Blower Adapter Assembly | 191645 | 22 .... | Orifice, Air |
| ||
3 | Blower Manifold Assembly | 191832 | 23 .... | Orifice, Union (See Orifice Table Below) | |||
*4 | Bracket, Blower | 191773 | 24 .... | Plug, 1/8" Pipe | 3348 |
| |
*5 | Clamp, Hose | 191794 | *25 .... | Port, Observation Lower | 191572 |
| |
6 | Elbow, 1" | 1630 | *26 .... | Port, Observation Upper |
| ||
7 | Face Bushing 1"x1 1/4" | 99376 | 27 .... | Screen, Air Inlet | 192041 |
| |
*9 | Flange, Observation Port | 191573 | *28 .... | Screw, Cap 1/4" |
| ||
10 | Gasket, Blower | 191623 |
| ||||
*29 .... | Srew, Flathead | 191542 |
| ||||
*11 | Gasket, Burner | 191564 |
| ||||
*30 .... | Screw, Flathead |
| |||||
12 | Gasket, Manifold | 191565 |
| ||||
31 .... | Switch, Low Pressure |
| |||||
*13 | Gasket, Port (1/8" Thick) |
| |||||
33 .... | Tee, 1/8" | 40119 |
| ||||
*14 | Gasket, Port (1/16" Thick) | 191576 |
| ||||
*34 .... | Tee, Union | 191633 |
| ||||
15 | Manifold Assembly | 191610 |
| ||||
*35 .... | Tubing, Pressure | 191562 |
| ||||
16 | Nipple, Close 1/8" |
| |||||
*36 .... | Tubing, Top Cover Assembly | 191925 |
| ||||
17 | Nipple, Close Stainless | 191772 |
| ||||
*37 .... |
| ||||||
18 | Nipple, 1x4 1/2" with Tap |
| |||||
38 .... | Valve, Main Gas |
| |||||
19 | Nipple, 1" x 9 1/2" | 86397 |
| ||||
*39 .... | Washer, Lock 1/4" | 1006 |
| ||||
20 | Nipple, 1" x 2" | 1177 |
| ||||
40 .... | Valve, Solenoid Gas | 192189 |
| ||||
20A ... | Nipple, 1"x15 1/2" |
| |||||
41 .... | Shutter, Blower | 211694 |
| ||||
20B ... | Nipple, 1 1/4" x 2" |
| |||||
20C .. | Nipple, 1"xClose | 1342 | 42 .... | Flange, Shutter | 211695 |
| |
20D .. | Nipple, 1"x4" | 43 .... | Manual Firing Valve |
| |||
*Item Not Illustrated. |
|
|
|
|
|
| |
|
|
|
| DETAIL BACK VIEW |
| ||
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
LEGEND ORIFICE TABLE
for boilers built on or after 6/01/02.
Model | Natural Gas | Size (In.) | Elevation (Ft.) |
LB & | 0.464 | 0 - 2000 | |
LB & | 0.450 | 2001 - 3000 | |
LB & | 0.443 | 3001 - 4000 |
Note: Manual firing valve (item 43) used on US models made on or after 6/1/02.
LEGEND ORIFICE TABLE
Model | Natural Gas | Size (In.) | Elevation (Ft.) |
LB & | 0.484 | 0 - 2000 | |
LB & | 0.469 | 2001 - 3000 | |
LB & | 0.461 | 3001 - 4000 |
6