Webster JBE Series Operation, Maintenance & Installation Manual page 7

Model
Standard
JBE(X)5*-50J 1,240
JBE(X)5*-75J 1,360
JBE(X)5*-75K 1,640
JBE(X)7*-100K 1,880
JBE(X)7*-150L 2,290
JBE(X)7*-200M 2,980
JBE(X)7*-250M 3,190
JBE(X)9*-300M 3,580
JBE(X)9-400M 4,750
JBE(X)9*-500N 5,000
JBE(X)9*-600P 5,670
JBE(X)9*-750P 6,170
*Can be "G" (Gas), "O" (Oil) or "C" (Combination Gas/Oil)
(X) Optional FGR for low NOx operation
Input Input
Min. Furn.
BHP MBH
Length
200 8369 116
250 10461 128
300 12553 138
350 14645 146
400 16738 154
450
18830 160
500 20922 166
600 25106 177
700 29288 185
800 33472 192
900 37656 200
1000 41840 205
1100 46024 210
1200 50208 215
1300 54392 220
Note: Length & Diameter in inches. Heat release in BTU/cu.ft.
JBE(X) Manual
Figure A-3 - General Ratings
Nat. Gas or Propane
Min. Firing Rate Max. Firing Rate
(MBH)
w/FGR Standard
1,030 14,900
1,130 16,350
1,360 19,760
1,560 22,600
1,900 27,500
2,470 35,800
2,650 38,300
2,970 43,000
3,940 57,000
4,150 60,000
4,700 68,000
5,240 74,000
Figure A-4 Furnace Conditions
No FGR
Min Furn.
Dia. Heat Rel.
26 185,000
27 185,000
29 185,000
31 185,000
33 185,000
34 185,000
35 185,000
38 185,000
39 185,000
41 185,000
42 185,000
43 185,000
44 185,000
45 185,000
46 185,000
Min. Firing Rate
(MBH)
w/FGR Standard
12,370 11
13,570 12
16,400 14
18,760 16
22,820 20
29,710 26
31,800 27
35,690 31
47,310 41
49,800 43
56,440 49
62,900 53
30 & 60 ppm NOx
Max Min Furn.
Dia.
26
28
30
32
35
36
37
39
41
43
44
46
47
48
49
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#2 Fuel Oil
Max. Firing Rate
(GPH)
(GPH)
w/FGR Standard
9 106
10 117
12 141
13 161
16 196
21 256
23 274
25 307
34 407
36 429
40 486
44 529
20 ppm NOx
Max Min. Furn.
Heat Rel. Dia.
175,000 28
175,000 29
175,000 31
175,000 35
175,000 36
175,000 39
175,000 42
175,000 44
175,000 46
175,000 48
175,000 50
175,000 52
175,000 53
175,000 54
175,000 56
Section B- Components
w/FGR
88
97
117
134
163
212
227
255
338
356
403
439
Max Heat
Rel.
165,000
165,000
165,000
165,000
165,000
165,000
165,000
165,000
165,000
165,000
165,000
165,000
165,000
165,000
165,000