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Item Description
1 .....Valve, Main Gas .............................................. 191956-1
2 .....Regulator, LP ..................................................... - - - - -
3 .....Valve, Manual Shut-Off ..................................... 3423-4
4 .....Pipe Plug ............................................................ 3348
5 .....Switch, Low Gas Pressure ............................. 191149-3
6 .....Nipple, 1" ........................................................... 86397
7 .....Nipple, 1" ......................................................... 85397-6
8 .....Nipple, 1" ............................................................ 1177
9 .....Elbow, Union, 1" ...................................................... 2482-1
On LB models the circulating pump must be between
the boiler inlet and the bypass (see figure below).
LW models have pump mounted inside the jacket.
Please update these numbers
LB/LW PROPANE GAS TRAIN ASSEMBLY - MODEL 500
Model 500
Item Description
10 .... Elbow, 90° Street, 1" ............................................... 190763
11 .... Elbow, 90°, 1" .......................................................... 1630
12 .... Nipple, 1" ................................................................ 1179
13 .... Nipple, 1" ............................................................ 86397-11
14 .... Nipple, 1/8" ......................................................... 191147-1
15 .... Tee, 1/8" ................................................................. 40119
16 .... Nipple, Close Stainless ....................................... 191772
17 .... Orifice, Union .............................. See Orifice Table Below
LB/LW 500 ORIFICE TABLE
Propane Gas
192741
192741-1
192741-2
LB/LW BY-PASS PARTS LIST - MODEL 500
Item Description
1 .....Ball Valve .............................................................. 191935
2 .....Hex Reducing Bushing LW Models
.....(for use w/Relief Valve) ........................................ 91940-1
3 .....Relief valve:
.....
LB Model ............................................................ 210451
.....
LW Model .......................................................... 98883-3
4 .....Tee, 2" x 2" x 1" .................................................... 78685-2
5 .....Tee, 2" ................................................................... 191584
6 .....Tee, 2" x 2" x 2" .................................................... 78685-4
7 .....Valve, Drain ............................................................ 26273
*8 .....Valve, Manual Shutoff ............................................ - - - - -
*9 .....Orifice, Gas Assembly (See Orifice Table)
*10 .....Tube, Condensate ............................................ 191746-120
*11 .....Strap, Cable ......................................................... 99592-2
*Item Not Illustrated.
8
Model 500
Size (In.)
Elevation (Ft.)
0.229
0 - 2000
0.226
2001 - 3000
0.223
3001 - 4000
Model 500
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