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Part Number 550-141-186/0914
37
s)NSTALLATIONs3TART5Ps-AINTENANCEs0ARTS
14
Ratings - Water
(Note 3)
Boiler
Model
Number
(Note 1)
Heating
Medium
Input
MBH
(Note 2)
Gross
Output
MBH
(Note 2)
Net
Rating
Water
MBH
(Note 2)
Boiler
H.P.
Boiler Water
Content
Gallons
Approx.
Shipping
Weight
Assembled
Block
Weight
Complete
Packaged
Boiler Weight
Chimney
Breeching
Size (I.D.)
Gallons lbs.
Models PLGB
(Note 4)
Inches
(Note 5)
LGB-4-W Water 400 322 280 9.7 36.5 1185 975 1600 10
LGB-5-W Water 520 419 364 12.6 45.6 1455 1200 1800 12
LGB-6-W Water 650 523 455 15.7 54.7 1725 1425 2000 12
LGB-7-W Water 780 628 546 18.9 63.9 2005 1650 2300 12
LGB-8-W Water 910 737 641 22.0 73.0 2290 1900 2500 14
LGB-9-W Water 1040 843 733 25.2 82.1 2560 2125 2800 14
LGB-10-W Water 1170 950 826 28.3 91.2 2800 2375 3100 16
LGB-11-W Water 1300 1057 919 31.5 100.4 3105 2600 3300 16
LGB-12-W Water 1430 1165 1013 34.6 109.5 3365 2850 3500 16
LGB-13-W Water 1560 1273 1107 37.8 118.6 3785 3100 4100 16
LGB-14-W Water 1690 1381 1201 40.9 127.7 4085 3330 4300 16
LGB-15-W Water 1820 1489 1295 44.0 136.9 4355 –– –– 16
LGB-16-W Water 1950 1597 1389 47.2 146.0 4725 –– –– 17
LGB-17-W Water 2080 1708 1485 50.3 155.1 4975 –– –– 17
LGB-18-W Water 2210 1817 1580 53.5 164.2 5270 –– –– 18
LGB-19-W Water 2340 1926 1675 56.6 173.4 5540 –– –– 18
LGB-20-W Water 2470 2035 1770 59.8 182.5 5820 –– –– 19
LGB-21-W Water 2600 2207 1919 62.9 191.6 6080 –– –– 19
LGB-22-W Water 2730 2318 2016 66.1 201.2 6365 –– –– 19
LGB-23-W Water 2860 2428 2111 69.2 209.8 6625 –– –– 20
Derate multipliers for low natural gas supply pressures
For boilers Equipped for 7.0” water column (w.c.) For boilers Equipped for 5.0” water column (w.c.)
Actual Inlet Natural Gas
Pressure (Note 1)
Derate Multiplier
Resulting Manifold Gas
Pressure
Actual Inlet Natural Gas
Pressure (Note 1)
Derate Multiplier
Resulting Manifold
Gas Pressure
6.00” w.c. 0.92 3.00” w.c. 4.75” w.c. 0.96 3.20” w.c.
5.50” w.c. 0.88 2.70” w.c. 4.50” w.c. 0.94 3.10” w.c.
5.00” w.c. 0.84 2.50” w.c. 4.25” w.c. 0.91 2.90” w.c.
4.75” w.c. 0.81 2.30” w.c. 4.00” w.c. 0.89 2.80” w.c.
4.50” w.c. 0.80 2.20” w.c.
Note 1
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4.25” w.c. 0.77 2.05” w.c.
4.00” w.c. 0.75 1.95” w.c.
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