Selection Guide

19
RATINGS
telescopic accessories
ACCESSORIES
*Based on 65
0
F entering air temperature.
Note: Ratings are based on active finned length (5-1/4" less than overall length.)
† Access doors: 6” x 6”. Door location depends on model.
Cover
Type
Enclosure
Height
Element
Type
Tube Size
& Material
Fins
Per
Foot
Steam
1 PSI*
Btu/Hr.
Per Foot
Fin Size
& Material
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
S-532 1
1
⁄4" steel 4
1
⁄4" steel 32 1290 258 336 426 516 581 684 787 890 1006 1109 1226 1355
S-540 1
1
⁄4" steel 4
1
⁄4" steel 40 1390 278 362 459 556 626 737 848 959 1084 1195 1321 1460
FS-7 7” C-340
3
⁄4" copper 4
1
⁄4" alum. 40 1579 316 411 521 632 711 837 963 1090 1232 1358 1500 1658
C-440 1" copper 4
1
⁄4" alum. 40 1670 334 434 551 668 752 885 1019 1152 1303 1436 1587 1754
C-540 1
1
⁄4" copper 4
1
⁄4" alum. 40 1640 328 426 541 656 738 869 1000 1132 1279 1410 1558 1722
S-532 1
1
⁄4" steel 4
1
⁄4" steel 32 1330 266 346 439 532 599 705 811 918 1037 1144 1264 1397
S-540 1
1
⁄4" steel 4
1
⁄4" steel 40 1540 308 400 508 616 693 816 939 1063 1201 1324 1463 1617
FS-14
14” C-340
3
⁄4" copper 4
1
⁄4" alum. 40 1782 356 463 588 713 802 945 1087 1230 1390 1532 1693 1871
One-tier
C-440 1" copper 4
1
⁄4" alum. 40 1890 378 492 624 756 851 1002 1153 1304 1474 1625 1796 1985
element
C-540 1
1
⁄4" copper 4
1
⁄4" alum. 40 1850 370 481 611 740 833 981 1129 1277 1443 1591 1758 1943
S-532 1
1
⁄4" steel 4
1
⁄4" steel 32 1850 370 481 611 740 833 981 1129 1277 1443 1591 1758 1943
FS-14 S-540 1
1
⁄4" steel 4
1
⁄4" steel 40 1955 391 508 645 782 880 1036 1193 1349 1525 1681 1857 2053
Two-tier 14” C-340
3
⁄4" copper 4
1
⁄4" alum. 40 2311 462 601 763 925 1040 1225 1410 1595 1803 1988 2196 2427
element C-440 1" copper 4
1
⁄4" alum. 40 2450 490 637 809 980 1103 1299 1495 1690 1911 2107 2328 2573
C-540 1
1
⁄4" copper 4
1
⁄4" alum. 40 2400 480 624 792 960 1080 1272 1464 1656 1872 2064 2280 2520
S-532 1
1
⁄4" steel 4
1
⁄4" steel 32 1610 322 419 531 644 725 853 982 1111 1256 1385 1530 1691
S-540 1
1
⁄4" steel 4
1
⁄4" steel 40 1675 335 435 553 670 754 888 1022 1156 1307 1441 1591 1759
FS-21
21” C-340
3
⁄4" copper 4
1
⁄4" alum. 40 2008 402 522 663 803 903 1064 1225 1386 1566 1727 1908 2108
One-tier
C-440 1" copper 4
1
⁄4" alum. 40 2130 426 554 703 852 959 1129 1299 1470 1661 1832 2024 2237
element
C-540 1
1
⁄4" copper 4
1
⁄4" alum. 40 2085 417 542 688 832 938 1105 1272 1439 1626 1793 1981 2189
S-532 1
1
⁄4" steel 4
1
⁄4" steel 32 2140 428 556 706 856 963 1134 1305 1477 1669 1840 2033 2247
FS-21 S-540 1
1
⁄4" steel 4
1
⁄4" steel 40 2245 449 584 741 898 1010 1190 1369 1549 1751 1931 2133 2357
Two-tier 21” C-340
3
⁄4" copper 4
1
⁄4" alum. 40 2648 528 686 871 1056 1192 1404 1616 1827 2066 2277 2516 2781
element C-440 1" copper 4
1
⁄4" alum. 40 2810 562 731 927 1124 1265 1489 1714 1939 2192 2417 2670 2951
C-540 1
1
⁄4" copper 4
1
⁄4" alum. 40 2750 550 715 908 1100 1238 1458 1678 1897 2145 2365 2613 2888
S-532 1
1
⁄4" steel 4
1
⁄4" steel 32 2380 476 619 785 952 1071 1261 1452 1642 1856 2047 2261 2499
FS-21 S-540 1
1
⁄4" steel 4
1
⁄4" steel 40 2540 508 660 838 1016 1143 1346 1549 1753 1981 2184 2413 2667
Three-tier 21” C-340
3
⁄4" copper 4
1
⁄4" alum. 40 3005 601 781 991 1202 1352 1593 1833 2073 2344 2584 2854 3155
element C-440 1" copper 4
1
⁄4" alum. 40 3180 636 827 1049 1272 1431 1685 1940 2194 2480 2735 3021 3339
C-540 1
1
⁄4" copper 4
1
⁄4" alum. 40 3120 624 811 1030 1248 1404 1654 1903 2153 2434 2683 2964 3276
† †