Selection Guide

27
Active Finned Length
BARE ELEMENT RATINGS
Dimensions for bare element installation without enclosures (“S” and “C” elements).
Active length of each element is as f ollows:
For copper tube H and C elements – 4" less than total length.
For steel pipe H and S elements – 5" less than total length.
S-532 1
1
4"IPS steel 4
1
4" x 4
1
4" x .024" 32 1 1080 216 281 356 432 486 572 659 745 842 929 1026 1134
electro-gal. steel 2 420 1950 390 507 644 780 878 1034 1190 1346 1521 1677 1853 2048
3 2560 512 666 845 1024 1152 1357 1562 1766 1997 2202 2432 2688
S-540 1
1
4"IPS steel 4
1
4" x 4
1
4" x .024" 40 1 1300 260 338 429 520 585 689 793 897 1014 1118 1235 1365
electro-gal. steel 2 420 2210 442 575 729 884 995 1171 1348 1525 1724 1901 2100 2321
3 2810 562 731 927 1124 1265 1489 1714 1939 2192 2417 2670 2951
S-832 2"IPS steel 4
1
4" x 4
1
4" x .024" 32 1 1130 226 294 373 452 509 599 689 780 881 972 1074 1187
electro-gal. steel 2 252 2010 402 523 663 804 905 1065 1226 1387 1568 1729 1910 2111
3 2650 530 689 875 1060 1193 1405 1617 1829 2067 2279 2518 2783
C-340
3
4"copper 4
1
4" x 4
1
4" x .020" 40 1 1610 322 419 531 644 725 853 982 1111 1256 1385 1530 1691
aluminum 2 708 2830 566 736 934 1132 1274 1500 1726 1953 2207 2434 2689 2972
3 3620 724 941 1195 1448 1629 1919 2208 2498 2824 3113 3439 3801
C-440 1" copper 4
1
4" x 4
1
4" x .020" 40 1 1650 330 429 545 660 743 875 1007 1139 1287 1419 1568 1733
aluminum 2 504 2890 578 751 954 1156 1301 1532 1763 1994 2254 2485 2746 3035
3 3710 742 965 1224 1484 1670 1966 2263 2560 2894 3191 3525 3896
C-540 1
1
4" copper 4
1
4" x 4
1
4" x .020" 40 1 1700 340 442 561 680 765 901 1037 1173 1326 1462 1615 1785
aluminum 2 396 2990 598 777 987 1196 1346 1585 1824 2063 2332 2571 2841 3140
3 3830 766 996 1264 1532 1724 2030 2336 2643 2987 3294 3639 4022
H-1
3
4" copper 3" x 3
1
4" x .024" 48 1 218 283 360 436 491 578 665 752 850 937 1036 1145
aluminum 2 708 392 510 647 784 882 1039 1196 1352 1529 1686 1862 2058
3 640 832 1056 1280 1440 1696 1952 2208 2496 2752 3040 3360
H-5X 1
1
4" copper 3" x 3
1
4" x .020" 48 1 940 188 244 310 376 423 498 573 649 733 808 893 987
aluminum 2 396 1330 266 346 439 532 599 705 811 918 1037 1144 1264 1397
3 2110 422 549 696 844 950 1118 1287 1456 1646 1815 2005 2216
H-6X 1
1
4” IPS steel 3" x 3
1
4" x .028" 48 1 850 170 221 281 340 383 451 519 587 663 731 808 893
aluminized steel 2 420 1290 258 335 426 516 581 684 787 890 1006 1109 1226 1355
3 1840 368 478 607 736 828 975 1122 1270 1435 1582 1748 1932
Model
Number
Tube
Size and Material
Fin Size
and Material
Fins
per
Foot
No.of
Tiers
7" cl
HOT WATER RATINGS*
BTU/HR./FT. (Flow Rate 3 Ft./Sec.)
110˚F 120˚F 130˚F 140˚F 150˚F 160˚F 170˚F 180˚F 190˚F 200˚F 210˚F 220˚F
Pressure
Drop
Steam
1 PSI*
Btu/Hr.
Per Foot
* Based on 65
o
F entering air temperature.Millinches per foot, based on flow rate of 3FPS; according to ASHRAE fundamentals handbook, 2001
NOTE: H-3, H-4 and E-3 elements are not recommended f or bare-element installation. H-1 is not recommended for steam applications.
Ratings are based on active finned length (S & C ser ies 5-1/4" less than overall length.) (H series–3" less than overall length.)