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Item Description
1 ....... Valve, Main Gas ............................................. 77780
2 ....... Regulator, LP ................................................ 192460
3 ....... Valve, Manual Shut-Off ................................. 3423-3
4 ....... Pipe Plug ........................................................ 3348
5 ....... Switch, Low Gas Pressure ......................... 191149-3
6 ....... Nipple, 1-1/4" ............................................... 86505-8
7 ....... Nipple, 1-1/4 ................................................ 86505-2
8 ....... Nipple, 1-1/4" .............................................. 86505-10
9 ....... Elbow, Union ,1-1/4" ......................................... 86506
10 ....... Elbow, 90° Street , 1-1/4" .................................. 94516
11 ....... Elbow, 90°, 1-1/4" ......................................... 192216
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 750
Model 750
Item
Description
12 ....... Nipple, 1-1/4" ............................................... 86505-3
13 ....... Nipple, 1-1/4" .............................................. 86397-11
14 ....... Nipple, 1-1/4" ............................................... 86505-4
15 ....... Tee, 1/8" ........................................................ 192465
16 ....... Connector, Angle 1/8" ..................................... 1578
17 ....... Bleeder, Tube ............................................... 210016
18 ....... Bleeder, Tube ............................................... 192461
19 ....... Bushing, 1" x 1-1/4" ....................................... 99376
20 ....... Nipple, Close Stainless ............................... 191772
21 ....... Orifice, Union .............................. See Orifice Table Below
LB/LW 750 ORIFICE TABLE
Propane Gas
192741-3
192741-5
192741-7
LB/LW BY-PASS PARTS LIST - MODEL 750
Item Description
1 ..... Ball Valve .............................................................. 191935
2 ..... Hex Reducing Bushing LW Models
.....
(for use w/Relief Valve) ........................................ 91940-1
3 ..... Relief valve:
.....
LB Model .......................................................... 210451-1
.....
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 ........................................... 3423-3
*9 ..... Orifice, Gas Assembly (See Orifice Table)
*10 ..... Tube, Condensate ............................................ 191746-120
*11 ..... Strap, Cable ......................................................... 99592-2
*Item Not Illustrated.
9
Model 750
Size (In.)
Elevation (Ft.)
0.286
0 - 2000
0.282
2001 - 3000
0.278
3001 - 4000
Model 750
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