Installation Considerations; Rough In Dimensions; Recovery Capacities; Gas And Electrical Characteristics - A.O. Smith BTN-120 Instruction Manual

rough in dimensions

reCoVery CapaCities

gas and eleCtriCal CharaCteristiCs

front View
taBle 1. rough-in-dimensions
BTN-120 BTN-154
Model
Dim.
inches mm inches mm
A 63 1800 68 1727
B 4 1/4 108 4 1/2 114
C 59 1/2 1511 62 1575
D 50 7/8 1292 53 5/8 1362
E 19 11/16 500 20 1/2 521
F 19 483 21 533
G 3/4 NPT 3/4 NPT
H 51 7/8 1318 54 5/8 1387
I 5 127 6 152
J 27 3/4 705 27 3/4 705
K 1 1/2 NPT 1 1/2 NPT
l 1 1/2 NPT 1 1/2 NPT
Approx.
236 550 249
Shipping
520 Ibs.
Weight
Kg. Ibs. Kg.
STD
Approx.
Shipping
Weight
ASMe
TABLE 2. RECOVERY CAPACITIES, based on 80% thermal efficiency
Input Input U.S.
BTUH KW Gal.
120000 71
BTN-120
35
154000 81
BTN-154
45
180000 100
BTN-180
53
199000 93
BTN-199C
58
199000 100
BTN-199
58
199000 100
BTN-200
58
250000 100
BTN-250
73
275000 100
BTN-275
81
310000 85
BTN-310
91
366000 85
BTN-366
107
390000 85
BTN-400
114
taBle 3. gas and eleCtriCal CharaCteristiCs
Model Type of Gas
All Models Natural

installation Considerations

outlet
1 1/2" npt
BTN-180 BTN-199C
inches mm inches mm inches
72 1829 72 1829 72
4 1/2 114 4 1/2 114 4 1/2
70 1778 70 1778 70
61 5/8 1565 61 5/8 1565 61 5/8
20 1/2 521 20 1/2 521 20 1/2
21 533 21 533 21
3/4 NPT 3/4 NPT
61 1549 61 1549 61
6 152 6 152 6
27 3/4 705 27 3/4 705 27 3/4
1 1/2 NPT 1 1/2 NPT
1 1/2 NPT 1 1/2 NPT
550 249 620 281 550
Ibs. Kg. Ibs. Kg. Ibs.
liters eff. %
Deg. F 36 40
Deg. C 20 22
GPH 321 289
80
269 lPH 1214 1093
GPH 412 371
80
307 lPH 1559 1403
GPH 481 433
80
379 lPH 1822 1639
GPH 532 479
80
352 lPH 2014 1813
GPH 532 479
80
379 lPH 2014 1813
GPH 532 479
80
379 lPH 2014 1813
GPH 668 602
80
379 lPH 2530 2277
GPH 735 662
80
379 lPH 2783 2505
GPH 829 746
80
322 lPH 3137 2824
GPH 978 881
80
322 lPH 3704 3334
GPH 1043 938
80
322 lPH 3947 3552
Gas Supply Pressure
minimum
5.2" W.C. (1.29 kPa) 14" W.C. (3.48 kPa)
top
f
inlet
1 1/2" npt
top View
figure 5.
BTN-199 BTN-200 BTN-250
mm inches mm inches
1829 72 1829 72
114 4 1/2 114 4 1/2
1778 70 1778 70 1778
1565 61 5/8 1565 61 5/8
521 20 1/2 521 20 1/2
533 21 533 21
3/4 NPT 3/4 NPT 3/4 NPT
1549 61 1549 61
152 6 152 6
705 27 3/4 705 27 3/4
1 1/2 NPT 2 NPT 2 NPT
1 1/2 NPT 2 NPT 2 NPT
249 660 299 660
Kg. Ibs. Kg. Ibs.
710 322 710
Ibs. Kg. Ibs.
U. S. Gallons/Hr. and liters/Hr. at TeMPerATUre rISe INDICATeD
50 54 60 70 72
28 30 33 39 40
231 214 192 165 160
874 810 729 625 607
296 274 247 212 206
1122 1039 935 802 779
346 321 289 247 241
1312 1214 1093 937 911
383 355 319 274 266
1450 1343 1208 1036 1007
383 355 319 274 266
1450 1343 1208 1036 1007
383 355 319 274 266
1450 1343 1208 1036 1007
481 446 401 344 334
1822 1687 1518 1301 1265
529 490 441 378 368
2004 1855 1670 1431 1392
597 553 497 426 414
2259 2092 1882 1613 1569
705 652 587 503 489
2667 2469 2222 1905 1852
751 695 626 536 521
2842 2631 2368 2030 1973
maximum Gas Manifold Pressure
3.5" W.C. (0.87 kPa)
8
top
BaCk View
BTN-275 BTN-310
mm inches mm inches mm
1829 72 1829 73 1854
114 4 1/2 114 41/2 114
70 1778 72 1829
1565 61 5/8 1565 62 1/2 1588
521 20 1/2 521 22 1/2 572
533 21 533 21 533
3/4 NPT 3/4 NPT
1549 61 1549 63 1600
152 6 152 6 152
705 27 3/4 705 27 3/4 705
2 NPT 1 1/2 NPT
2 NPT 1 1/2 NPT
299 660 299 720 327
Kg. Ibs. Kg. Ibs. Kg.
322 710 322 770 349
Kg. Ibs. Kg. Ibs. Kg.
80 90 100 108 110
44 50 56 60 61
144 128 115 107 105
546 486 437 405 397
185 165 148 137 135
701 623 561 520 510
217 192 173 160 157
820 729 656 607 596
239 213 192 177 174
906 806 725 671 659
239 213 192 177 174
906 806 725 671 659
239 213 192 177 174
906 806 725 671 659
301 267 241 223 219
1139 1012 911 843 828
331 294 265 245 241
1252 1113 1002 928 911
373 332 298 276 271
1412 1255 1129 1046 1027
440 391 352 326 320
1667 1482 1333 1235 1212
469 417 375 348 341
1776 1579 1421 1316 1292
Volts/Hz Amperes
120/60
BTN-366 BTN-400
inches mm inches mm
73 1854 73 1854
4 1/2 114 4 1/2 114
72 1829 72 1829
62 1/2 1588 62 1/2 1588
22 1/2 572 22 1/2 572
21 533 21 533
1 NPT 1 NPT
63 1600 63 1600
6 152 6 152
27 3/4 705 27 3/4 705
1 1/2 NPT 1 1/2 NPT
1 1/2 NPT 1 1/2 NPT
830 376 830 376
Ibs. Kg. Ibs. Kg.
880 399 880 399
Ibs. Kg. Ibs. Kg.
120 126 130 140
67 70 72 78
96 92 89 82
364 347 336 312
124 118 114 106
468 445 432 401
144 137 133 124
546 520 504 468
160 152 147 137
604 575 558 518
160 152 147 137
604 575 558 518
160 152 147 137
604 575 558 518
201 191 185 172
759 723 701 651
221 210 204 189
835 795 771 716
249 237 230 213
941 896 869 807
294 280 271 252
1111 1058 1026 952
313 298 289 268
1184 1128 1093 1015
<5