06 99 ray-vector - rosemex, leader in the heating · ray-vector wall - fin enclosures rosemex...

RAY-VECTOR WALL - FIN ENCLOSURESHYDRONIC HEATING

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G06 99

I N D E X S U P P O R T S2 PAGES

General specifications . . . . . . 3

Bare element . . . . . . . . . . . . 4

Model RVS . . . . . . . . . . . . . 6

Model RVF . . . . . . . . . . . . . 8

Model RVT. . . . . . . . . . . . . 10

Model RVE . . . . . . . . . . . . 12

Model RVX . . . . . . . . . . . . 14

Model IRVS . . . . . . . . . . . . 16

Model RVSVS . . . . . . . . . . 18

Model RVP . . . . . . . . . . . . 20

Model RVCES . . . . . . . . . . 22

Model RVCED . . . . . . . . . . 24

Optional accessories . . . . . . 25

System designing . . . . . . . . 26

Correction factors . . . . . . . 27

ELEMENT SUPPORTFOR 1, 2 OR 3 ROWSFOR BOTTOM GRILLE

CABINETS ONLY

ELEMENT SUPPORTFOR 2nd OR 3rd ROW

BARE ELEMENT SUPPORT

TOP SUPPORTWELDED TO CABINET

RC-8

RE-3

RE-1

A UNIQUE DESIGN

Allows installer a fast and easy align-ment, using only one levelled line atthe top of enclosure.

Once hanging strip is installed, thecabinet supports can be hooked to thehanging strip and fastened to wall atbottom.

This will ensure perfect alignment ofthe top and bottom of the enclosure.

RAY VECTOR ENCLOSURES

Enclosures are manufactured in awide variety of models designed underthe ROSEMEX tradition of aesthetics,durability, strength and ease of instal-lation.

Most models consist of element andcabinet supports hung from a continu-ous hanging strip. Enclosure lengthsare assembled together using con-cealed joiner strips to give a single unitlook in every room. The uniqueROSEMEX cabinet support designenables the installer to simply clip thebottom of the enclosure to the support.Enclosures are made of quality coldrolled steel, 18, 16 or 14 gauge,formed and reinforced with top sup-ports, degreased, phosphatized andcoated inside and out with a corrosionresistant tan primer. Panels are manu-factured in lengths of 2’0” to 8’0” by 6”increments. A wide variety of acces-sories are also available to suit yourrequirements.

ELEMENTSElements are either non-ferrous(seamless coppertube with aluminumfins) or ferrous (firm steel tube withsteel fin). For both types of elements,the tubes are expanded within the finsto obtain a permanent thermal bondbetween the two. These are manufac-tured in lengths of 1’0” to 10’0” by 6”increments. Both elements can beused on either steam or hot water sys-tems.

NON-FERROUS ELEMENTS,TYPES 34C & 44CThese elements are used for their highheat transfer properties and optimumoutput. They are manufactured witheither 3” x 4” or 4” x 4” fins formed withan integral collar for uniform spacing.All tube ends are manufactured toreceive standard sweat fittings.ROSEMEX elements are designed foruse at 250 P.S.I. or 300°F E.W.T. max-imum working conditions.

FERROUS ELEMENTS,TYPE 44SThese elements are used for theirsturdiness and are manufactured with4” x 4” steel fins. The fins are formedwith an integral collar for uniform spac-ing. All tube ends are factory threaded,ready to receive standard 1 1/4” I.P.S.fittings. ROSEMEX steel elements aredesigned for use at 250 P.S.I. or 300°FE.W.T. maximum working conditions.

ACCESSORIES

END PIECEEnd pieces are used to close offenclosure ends when cabinets do notterminate on an adjacent wall. Theend piece is manufactured with round-ed corners and protrudes 1” beyondenclosure to give a neat finishedappearance.

WALL TRIMJoiners are manufactured to overlapenclosures and cover the gap betweencabinet end and adjacent wall orcolumns. These are usually supplied in4”, 5”, 6” or 8” lengths.

CONCEALED JOINER (butt joint)Otherwise known as “butt joint connec-tor”, this piece fits between two enclo-sure lengths to give a clean hairlinejoint appearance to the installation.

INSIDE CORNERInside corners are manufactured tooverlap enclosures and are usedwhen piping runs on two or moreinside walls to meet heating require-ments. These are usually supplied at90° angles, however may be modifiedto meet project conditions.

OUTSIDE CORNEROutside corners are manufactured tooverlap enclosures and are usedwhen piping runs on two or more out-side walls to meet heating require-ments. These are usually supplied at90° angles, however may be modifiedto meet project conditions.

ACCESS DOORSAccess doors are manufactured to per-mit access to valves or other controlslocated inside enclosure. Two typesare available, factory installed 5” x 7”or field mounted 5” x 7” with frame.They are supplied as standard with ascrew lock, however a camlock type isalso available.For field mounted access doors, thecontractor is required to perforate theenclosure.

PIPE COVERSPipe covers are used to hide pipesthat run around a column. These aresupplied in 5”, 11” or 17” heights andare 3 3/4” deep.

DAMPERSDampers are knob operated hingedtype and are available for use on mostRay-Vector models. The screw typemechanism is corrosion proof andsets the damper in any position.

G E N E R A L S P E C I F I C A T I O N S 3

HangingStrip

RE-1ElementSupportAdjustmentSlots

Cabinet SupportAnchoring

RC-6

CABINET & ELEMENTSUPPORT

FOR 1, 2 OR 3 ROWS

12"12"

4"

3" ±

2 3/4"

3 1/2"

B A R E E L E M E N T D I M E N S I O N S4

4"

4"

3"

4"

2" 2"Ordering length

Available in lengths of 1’0" to 10’0" in 6" increments.

4"

4"

Ordering length

Available in lengths of 1’0" to 10’0" in 6" increments.

2 1/2" 2 1/2"

TYPE RAF (series 34c, 44c)

Aluminum Fins / Copper Tube

TYPE RSF (series 44S3)

ARRANGEMENTS

Steel Fins / Steel Tube

Copper aluminum heating elements are manufactured ofseamless copper tube and aluminum fins permanentlybonded by mechanical process.

Available in 3/4”, 1” and 1 1/4” copper tube sizes, allowyou to select the output and capacity to suit everyrequirement.

Steel elements are constructed of 1 1/4’ E.R.W. steelpipes and cold rolled steel fins, permanently bonded bymechanical process. They are hydrostatically tested andcoated with corrosion protecting paint.

Pipe extremities are threaded or may be chamfered forwelding if required.

N.B.: Ball bearing supports supplied for this type of ele-ment.

4"

3 3/4"

2 3/4"

3 1/2"

6"6"

4"

3" ±

2 3/4"

3 1/2"

A-

B-

C-

Type RSF STEEL FINS / STEEL TUBE

NOTE: Water ratings have been determined by applying the IBR factors shown to the steam ratings and apply only when the water velocityis three feet per second. For other flow rates use correction factors from table no. 1, page 27.

3" x 4"52 Fin / Ft.3/4" Dia.

4" x 4"52 Fin / Ft.

1" Dia.

3" x 4"52 Fin / Ft.

1" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.

3" x 4"48 Fin / Ft.1 1/4" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.

4" x 4"52 Fin / Ft.3/4" Dia.

Type RAF

NO.200 190 180 170 160 150 140E

LEM

EN

TSC

/C(IN

CH

ES

)

AR

R.

REF.

*44C1

34C1

44C2

34C2

44C3

34C3

44S3

ELEMENT

DIM. STEAM1 PSIGFIN/TUBE

BTU/HR/LIN. FT. 65°F ENT. AIR

AVERAGE WATER TEMP. °F

ALUMINUM FINS / COPPER TUBE

A 1

B 2

C 2

A 1

B 2

C 2

A 1

B 2

C 2

A 1

B 2

C 2

A 1

B 2

C 2

A 1

B 2

C 2

A 1

B 2

C 2

B A R E E L E M E N T C A P A C I T I E S 5

- 1508 1296 1176 1040 920 799 678 603

6 2499 2149 1949 1724 1524 1324 1125 1000

12 3053 2626 2381 2106 1862 1618 1374 1221

- 1278 1098 996 881 779 677 575 511

6 2117 1821 1651 1460 1291 1122 952 847

12 2587 2224 2018 1785 1578 1371 1164 1034

- 1516 1304 1182 1046 925 803 682 606

6 2513 2162 1960 1734 1533 1332 1131 1005

12 3071 2641 2395 2118 1873 1627 1381 1228

- 1285 1105 1002 887 784 681 578 513

6 2129 1831 1660 1469 1299 1128 958 852

12 2603 2238 2030 1795 1587 1379 1170 1040

- 1525 1311 1189 1051 930 808 686 609

6 2528 2173 1971 1744 1542 1340 1137 1011

12 3089 2656 2409 2131 1884 1637 1390 1235

- 1293 1112 1008 892 788 685 581 517

6 2142 1842 1670 1477 1306 1135 964 857

12 2618 2251 2042 1806 1596 1387 1178 1047

- 1267 1089 988 874 772 671 570 507

6 2129 1831 1660 1469 1299 1128 958 852

12 2580 2219 2012 1780 1573 1367 1160 1032

*

END PIECE

OPTION 1

OPTION 2

OPTION 3

ACCESS PANEL

A- B- C-

D- E- G-

H- J- K-

OUTSIDE CORNER

WALL TRIM INSIDE CORNER

12"

3"

18"

3"

24"

3"

18"

3"

6"

24"

3"

6"

24"

3"

12"

18"

3"

6"

24"

3"

6"

6" 24"

3"

6"

6"+ 1/2"

Type RVS - GBottom Grille Optional

H

3 7/8"

Due to the air restriction, reduce capacities by 7 %.

RC - 8 Support

1 5/8"

6 7/8"

3 1/2"

3 5/8"

3" ±

6"12"

6"12"

4"

12"18"24"

2 3/4"

2 3/4"

5 1/4" Hanging Strip

Anc

horin

g

TopSupport

CabinetSupportRC-6

ElementSupportRE-1

Floor

H

MODEL D I M E N S I O N S6 RVS

Type RAF

NO.200 190 180 170 160 150 140

ELEMENTSC/C

(INCHES)

ARRANGE-MENTS

44C1

34C1

44C2

34C2

44C3

34C3

44S3

ELEMENT





A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A HB JCD KEG

1696 1458 1323 1170 1034 898 762 678

1881 1618 1467 1297 1147 996 846 752

1970 1694 1537 1359 1201 1044 887 788

6 2435 2094 1899 1680 1485 1290 1096 974

6 2560 2202 1997 1766 1561 1357 1152 1023

12 2945 2532 2297 2032 1796 1561 1325 1178

1437 1235 1120 991 876 761 646 575

1594 1370 1243 1099 972 844 717 638

1669 1436 1301 1152 1018 884 751 667

6 2064 1775 1609 1424 1259 1093 928 825

6 2169 1865 1692 1496 1323 1149 976 867

12 2496 2145 1947 1721 1522 1323 1123 998

1705 1466 1329 1176 1040 904 767 682

1892 1627 1476 1305 1153 1002 851 757

1982 1704 1545 1368 1209 1050 892 792

6 2450 2106 1910 1690 1494 1298 1102 979

6 2576 2214 2009 1777 1571 1364 1159 1030

12 2962 2547 2310 2043 1806 1570 1333 1185

1445 1243 1127 997 881 766 650 578

1603 1378 1250 1106 978 850 721 641

1679 1443 1309 1158 1023 889 755 672

6 2076 1785 1618 1431 1266 1100 933 830

6 2182 1876 1702 1505 1330 1156 982 872

12 2510 2158 1958 1731 1531 1330 1129 1004

1715 1475 1338 1183 1046 909 772 686

1903 1636 1484 1312 1160 1008 856 761

1993 1714 1555 1375 1216 1057 897 797

6 2464 2119 1922 1700 1503 1306 1108 985

6 2591 2228 2020 1788 1580 1373 1165 1036

12 2979 2562 2323 2055 1817 1578 1340 1192

1454 1250 1133 1002 887 770 654 581

1612 1386 1257 1112 983 854 725 644

1688 1451 1317 1165 1029 894 759 675

6 2088 1795 1628 1440 1273 1106 939 835

6 2195 1887 1711 1514 1339 1163 987 882

12 2525 2171 1969 1742 1539 1338 1136 1010

1370 1178 1068 945 836 725 616 5471513 1301 1180 1044 922 802 681 6051567 1346 1221 1080 955 830 705 626

6 2113 1816 1648 1458 1289 1119 950 8456 2189 1882 1707 1510 1335 1159 984 87612 2366 2035 1845 1632 1443 1254 1064 946

MODEL C A P A C I T I E S 7RVS

4" x 4"52 Fin / Ft.3/4" Dia.

3" x 4"52 Fin / Ft.3/4" Dia.

4" x 4"52 Fin / Ft.

1" Dia.

3" x 4"52 Fin / Ft.

1" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.

3" x 4"48 Fin / Ft.1 1/4" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.



END PIECE

A- B- C-

D- E- G-

H- J- K-

OUTSIDE CORNER


12"

3"

18"

3"

24"

3"

18"

3"

6"

24"

3"

6"

24"

3"

12"

18"

3"

6"

24"

3"

6"

6" 24"

3"

6"

6"

1 5/8"

6 7/8"

3 1/2"

1"

3 1/4""

3" ±

6"12"

6"12"

4"

12"18"24"

2 3/4"

5 1/4"

H

Hanging Strip

Anc

horin

g

TopSupport

CabinetSupportRC-6

ElementSupportRE-1

Floor

+ 1/2"H

3 7/8"

Type RVF - GBottom Grille Optional


RC - 8 Support

MODEL D I M E N S I O N S8 RVF

OPTION 1

OPTION 2

OPTION 3

ACCESS PANEL

Type RAF

NO.200 190 180 170 160 150 140

44C1

34C1

44C2

34C2

44C3

34C3

44S3

ELEMENT





A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A HB JCD K

EG

1651 1420 1287 1138 1006 875 742 660

1831 1574 1428 1263 1116 970 824 732

1950 1676 1521 1345 1190 1033 877 779

6 2335 2008 1821 1611 1424 1237 1051 933

6 2503 2152 1952 1727 1527 1326 1126 1001

12 2846 2447 2219 1964 1736 1508 1280 1138

1398 1202 1091 965 853 740 629 559

1551 1335 1210 1071 946 822 698 621

1652 1420 1289 1140 1007 876 743 660

6 1978 1701 1543 1364 1206 1048 890 791

6 2121 1823 1654 1463 1293 1124 954 848

12 2411 2074 1880 1663 1471 1278 1085 964

1660 1428 1295 1145 1012 880 746 664

1841 1583 1437 1270 1123 975 828 736

1961 1686 1530 1352 1196 1039 882 784

6 2349 2020 1832 1620 1432 1244 1057 939

6 2518 2165 1964 1737 1535 1334 1132 1006

12 2863 2462 2233 1975 1746 1517 1288 1145

1406 1209 1097 970 857 745 632 562

1560 1341 1216 1076 952 826 701 624

1662 1429 1295 1146 1013 881 747 665

6 1989 1710 1551 1372 1213 1054 895 796

6 2133 1833 1663 1471 1301 1130 960 853

12 2511 2159 1958 1732 1530 1330 1130 1004

1669 1437 1301 1152 1018 884 751 667

1851 1592 1443 1277 1129 981 833 740

1972 1696 1539 1360 1203 1045 887 789

6 2362 2031 1842 1629 1441 1251 1063 944

6 2532 2178 1975 1747 1544 1341 1139 1012

12 2880 2477 2246 1986 1756 1526 1295 1152

1414 1216 1102 975 862 749 636 565

1569 1349 1224 1082 957 831 706 627

1671 1437 1303 1153 1020 885 751 668

6 2001 1720 1561 1380 1220 1060 900 800

6 2145 1845 1673 1480 1309 1136 965 858

12 2525 2172 1969 1743 1540 1338 1136 1010

1313 1129 1024 906 801 695 591 5251420 1221 1107 979 865 752 638 5681455 1251 1135 1003 887 771 655 581

6 1996 1717 1556 1377 1217 1057 898 7986 2057 1769 1604 1420 1255 1090 926 82312 2292 1970 1787 1581 1397 1214 1031 916

MODEL C A P A C I T I E S 9RVF

4" x 4"52 Fin / Ft.3/4" Dia.

3" x 4"52 Fin / Ft.3/4" Dia.

4" x 4"52 Fin / Ft.

1" Dia.

3" x 4"52 Fin / Ft.

1" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.

3" x 4"48 Fin / Ft.1 1/4" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.



ELEMENTSC/C

(INCHES)

ARRANGE-MENTS

END PIECE

A- B- C-

D- E- G-

H- J- K-

OUTSIDE CORNER


12"

3"

18"

3"

24"

3"

18"

3"

6"

24"

3"

6"

24"

3"

12"

18"

3"

6"

24"

3"

6"

6" 24"

3"

6"

6"+ 1/2"H

3 7/8"

Type RVT - GBottom Grille Optional


RC - 8 Support

1 5/8"

3 1/2" 3" ±

6"12"

6"12"

4"

12"18"24"

2 3/4"

5 1/4"

3 1/4"

H

Hanging Strip

CabinetSupportRC-6

ElementSupportRE-1

Floor

6 7/8"

Anc

horin

g

Top Support

MODEL D I M E N S I O N S10 RVT

OPTION 1

OPTION 2

OPTION 3

ACCESS PANEL

Type RAF

NO.200 190 180 170 160 150 140

44C1

34C1

44C2

34C2

44C3

34C3

44S3

ELEMENT





A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A HB JCD KEG

1781 1531 1389 1228 1085 944 801 712

1985 1707 1548 1369 1210 1051 893 794

2123 1826 1656 1465 1295 1125 955 850

6 2628 2260 2049 1813 1603 1392 1121 1051

6 2780 2391 2167 1918 1695 1472 1186 1112

12 3019 2596 2355 2083 1841 1600 1358 1207

1509 1297 1176 1040 920 799 678 604

1681 1446 1311 1159 1025 891 757 672

1799 1546 1403 1241 1097 953 809 719

6 2227 1915 1737 1536 1358 1180 1002 891

6 2356 2026 1837 1625 1436 1248 1060 942

12 2559 2200 1995 1765 1561 1356 1151 1023

1791 1540 1397 1235 1092 949 806 716

1997 1717 1557 1377 1217 1057 898 798

2135 1836 1665 1473 1302 1131 961 853

6 2644 2273 2061 1823 1612 1401 1189 1057

6 2797 2404 2180 1928 1705 1482 1257 1118

12 3037 2611 2368 2095 1852 1609 1366 1215

1517 1305 1183 1046 925 804 683 607

1698 1460 1324 1171 1035 899 764 679

1809 1556 1410 1248 1103 958 813 723

6 2240 1926 1747 1545 1366 1187 1007 896

6 2369 2037 1848 1634 1445 1255 1065 947

12 2574 2213 2007 1776 1570 1363 1158 1029

1801 1549 1404 1243 1098 955 810 720

2009 1727 1567 1386 1225 1064 904 803

2148 1847 1675 1482 1310 1138 966 859

6 2659 2287 2073 1834 1622 1408 1196 1063

6 2813 2419 2193 1940 1716 1489 1265 1124

12 3055 2627 2383 2107 1863 1618 1374 1221

1526 1312 1190 1052 930 808 686 610

1708 1468 1332 1178 1041 904 768 683

1819 1564 1419 1255 1109 964 819 728

6 2253 1937 1757 1554 1374 1193 1013 901

6 2383 2049 1858 1644 1453 1262 1071 953

12 2589 2226 2019 1786 1579 1372 1165 1035

1406 1209 1097 970 857 745 632 5621522 1308 1187 1050 927 806 684 6091574 1353 1227 1085 960 834 708 629

6 2049 1761 1597 1413 1250 1085 921 8196 2168 1864 1691 1495 1322 1148 975 86712 2410 2072 1879 1663 1470 1277 1084 964

MODEL C A P A C I T I E S 11RVT

4" x 4"52 Fin / Ft.3/4" Dia.

3" x 4"52 Fin / Ft.3/4" Dia.

4" x 4"52 Fin / Ft.

1" Dia.

3" x 4"52 Fin / Ft.

1" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.

3" x 4"48 Fin / Ft.1 1/4" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.



ELEMENTSC/C

(INCHES)

ARRANGE-MENTS

+ 1/2"H

3 7/8"

Type RVE - GBottom Grille Optional


RC - 8 Support

1 5/8"

3 1/2" 3" ±

6"12"

6"12"

4"

6"12"

6"12"18"30"

2 3/4"

5 1/4"

3 1/4"

H

6 7/8"12 7/8"

Hanging Strip

Anc

horin

g

4" x 4"Element

SpecialTopSupport

CabinetSupportRC-6

ElementSupportRC-8-6

ElementSupportRE-1

Floor

MODEL D I M E N S I O N S12 RVE

END PIECE

A- B- C-

D-

J-

E- G-

H-

OUTSIDE CORNER


3"6"

6"

3"

12" 6"

3"

12"

12"

3"

18"

15"18"

6"

3"

18"

6"

12"

3"

30"

12"

6"

3"

18"

6"

OPTION 1

OPTION 2

OPTION 3

ACCESS PANEL

Type RAF

NO.200 190 180 170 160 150 140

44C1

34C1

44C2

34C2

44C3

34C3

44S3

ELEMENT





A J

B

C H

D

E

G

A J

B

C H

D

E

G

A J

B

C H

D

E

G

A J

B

C H

D

E

G

A J

B

C H

D

E

G

A J

B

C H

D

E

G

A JBC HDEG

1369 1176 1067 944 835 725 615 547

1369 1176 1067 944 835 725 615 547

6 2142 1842 1670 1477 1306 1135 964 857

12 2594 2230 2023 1789 1582 1374 1167 1037

6 2665 2292 2078 1839 1625 1412 1199 1066

12 3393 2918 2646 2341 2070 1798 1527 1357

1159 997 904 800 707 614 521 463

1159 997 904 800 707 614 521 463

6 1815 1561 1415 1252 1107 961 816 726

12 2198 1890 1714 1516 1340 1165 989 879

6 2258 1941 1760 1557 1377 1196 1016 903

12 2876 2474 2242 1984 1754 1523 1294 1150

1376 1183 1073 949 839 729 619 550

1376 1183 1073 949 839 729 619 550

6 2155 1853 1680 1487 1314 1142 969 862

12 2610 2244 2035 1800 1591 1383 1174 1044

6 2680 2304 2091 1849 1635 1420 1205 1072

12 3413 2934 2661 2355 2083 1808 1535 1365

1166 1003 910 804 711 618 524 466

1166 1003 910 804 711 618 524 466

6 1825 1569 1423 1259 1114 966 821 729

12 2211 1901 1724 1525 1348 1171 995 884

6 2270 1952 1771 1566 1386 1203 1021 908

12 2893 2487 2256 1996 1764 1533 1301 1157

1384 1190 1080 955 844 733 622 553

1384 1190 1080 955 844 733 622 553

6 2168 1864 1691 1495 1322 1148 975 867

12 2625 2257 2047 1811 1601 1391 1181 1050

6 2695 2318 2102 1859 1644 1428 1212 1078

12 3433 2952 2678 2368 2094 1819 1544 1373

1173 1008 915 809 715 621 528 469

1173 1008 915 809 715 621 528 469

6 1835 1578 1431 1267 1119 972 825 734

12 2224 1913 1734 1534 1356 1178 1000 889

6 2284 1964 1781 1576 1394 1210 1028 913

12 2910 2502 2270 2007 1775 1542 1309 1164

1141 981 889 786 695 604 513 4561141 981 889 786 695 604 513 456

6 1781 1530 1389 1228 1085 944 801 71212 2188 1881 1706 1510 1335 1159 984 8756 2250 1935 1754 1552 1372 1192 1012 89912 2784 2394 2171 1921 1697 1475 1252 1114

MODEL C A P A C I T I E S 13RVE

4" x 4"52 Fin / Ft.3/4" Dia.

3" x 4"52 Fin / Ft.3/4" Dia.

4" x 4"52 Fin / Ft.

1" Dia.

3" x 4"52 Fin / Ft.

1" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.

3" x 4"48 Fin / Ft.1 1/4" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.



ELEMENTSC/C

(INCHES)

ARRANGE-MENTS

+ 1/2"H

3 7/8"

Type RVX - GBottom Grille Optional


RE - 3 Support

2 1/4"

3 1/2" 3" ±

6"12"

6"12"

6"12"

4"

6"12"

5 3/4"11 3/4"17 3/4"29 3/4"

2 3/4"

5 1/4"

HAnc

horin

g

4" x 4"Element

ElementSupportRE-3-RVX



Floor

MODEL D I M E N S I O N S14 RVX

OVERLAP

ACCESS PANEL

A- B- C-

D-

E- G- H-

OUTSIDE CORNER


3"5 3/4"

6"

3"

11 3/4" 6"

3"

11 3/4"

12"

3"

17 3/4"

6"

3"

17 3/4"

6"

12"

3"

29 3/4"

12"

6"

3"

17 3/4"

6"

NOT AVAILABLE

Type RAF

NO.200 190 180 170 160 150 140

44C1

34C1

44C2

34C2

44C3

34C3

44S3

ELEMENT





A

B

C H

D

E

G

A

B

C H

D

E

G

A

B

C H

D

E

G

A

B

C H

D

E

G

A

B

C H

D

E

G

A

B

C H

D

E

G

ABC HDEG

1466 1261 1143 1012 894 777 660 587

1466 1261 1143 1012 894 777 660 587

6 2440 2098 1902 1683 1488 1293 1097 976

12 2984 2565 2326 2058 1820 1581 1342 1193

6 3253 2797 2537 2244 1984 1724 1464 1301

12 4117 3539 3210 2840 2511 2181 1852 1646

1242 1068 969 857 757 658 558 496

1242 1068 969 857 757 658 558 496

6 2067 1777 1612 1426 1261 1095 930 826

12 2528 2173 1972 1744 1542 1340 1137 1011

6 2757 2370 2151 1901 1681 1460 1240 1102

12 3488 3001 2720 2406 2128 1849 1569 1395

1475 1268 1150 1017 899 781 663 590

1475 1268 1150 1017 899 781 663 590

6 2454 2110 1913 1693 1497 1301 1104 981

12 3001 2581 2341 2071 1830 1590 1350 1200

6 3272 2814 2552 2257 1995 1733 1472 1308

12 4141 3562 3230 2857 2525 2195 1863 1656

1249 1074 973 861 762 661 562 499

1249 1074 973 861 762 661 562 499

6 2079 1788 1621 1434 1268 1102 935 839

12 2542 2186 1982 1754 1550 1347 1143 1017

6 2773 2384 2162 1913 1692 1469 1247 1108

12 3509 3018 2737 2421 2140 1859 1578 1403

1483 1275 1157 1023 904 785 667 593

1483 1275 1157 1023 904 785 667 593

6 2468 2122 1925 1701 1505 1308 1110 987

12 3019 2596 2355 2083 1841 1600 1358 1207

6 3291 2831 2567 2270 2008 1744 1481 1316

12 4166 3582 3249 2874 2542 2207 1874 1666

1255 1080 979 867 765 665 564 502

1255 1080 979 867 765 665 564 502

6 2091 1798 1630 1442 1275 1108 941 836

12 2657 2198 1994 1764 1559 1355 1150 1023

6 2789 2398 2176 1924 1700 1477 1255 1115

12 3529 3035 2752 2434 2152 1870 1588 1411

1228 1056 958 847 749 650 553 4911228 1056 958 847 749 650 553 491

6 2029 1744 1582 1400 1238 1075 913 81112 2504 2153 1952 1727 1527 1327 1126 10016 2724 2343 2125 1879 1662 1443 1226 109012 3372 2899 2630 2326 2057 1787 1517 1348

MODEL C A P A C I T I E S 15RVX

4" x 4"52 Fin / Ft.3/4" Dia.

3" x 4"52 Fin / Ft.3/4" Dia.

4" x 4"52 Fin / Ft.

1" Dia.

3" x 4"52 Fin / Ft.

1" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.

3" x 4"48 Fin / Ft.1 1/4" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.



ELEMENTSC/C

(INCHES)

ARRANGE-MENTS

END PIECE

A- B- C-

D- E- G-

H- J- K-

OUTSIDE CORNER


12"9"

3"18"

9"

6"

3"

24"

9"

6"

18"

9"

6"

3"

24"

9"

6"

6"

3"

24"

9"

12"

3"

18"

9"

6"

3"

24"

9"

6"

6"

3"

24"

9"

6"

6"

3"

+1/2"H

3 7/8"Type IRVS - GBottom Grille Optional

Due to the air restriction, reduce capacities by 7 %.IRC Support

2 3/4"

3 1/2"

6"12"

6"12"

12"18"24"

2 3/4"

1 5/8"

5 1/4"

3" ±

Min. 4"

ElementSupportIRE-1

ElementSupportRE-1

Ceiling

6 7/8"

H

Hanging Strip

Anc

horin

g

TopSupport

CabinetSupportIRC-5

MODEL D I M E N S I O N S16 IRVS

OPTION 1

OPTION 2

OPTION 3

ACCESS PANEL

Type RAF

NO.200 190 180 170 160 150 140

44C1

34C1

44C2

34C2

44C3

34C3

44S3

ELEMENT





A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A HB JCD KEG

1284 1103 1000 884 783 680 577 513

1421 1221 1108 980 867 753 639 568

1483 1275 1156 1023 904 785 667 593

6 1839 1582 1434 1269 1122 974 827 735

6 1930 1660 1505 1331 1177 1023 868 772

12 2223 1911 1734 1533 1356 1177 1000 889

1087 935 847 750 663 575 489 434

1204 1034 938 830 734 638 541 481

1256 1080 979 867 765 666 565 502

6 1558 1340 1216 1074 950 825 700 623

6 1635 1406 1275 1128 997 866 735 654

12 1884 1619 1469 1301 1148 998 847 753

1291 1110 1006 891 787 684 581 516

1430 1229 1114 986 872 757 643 571

1492 1284 1163 1029 910 791 671 597

6 1850 1590 1442 1275 1128 980 832 740

6 1941 1669 1513 1339 1184 1029 873 776

12 2236 1922 1743 1542 1363 1184 1006 894

1093 939 853 754 666 579 491 437

1210 1040 944 835 738 641 544 484

1263 1085 986 871 770 669 568 505

6 1567 1346 1221 1080 955 830 705 626

6 1645 1414 1284 1135 1003 871 740 658

12 1895 1629 1477 1307 1156 1004 853 757

1299 1117 1012 896 792 688 584 519

1438 1237 1122 992 877 762 647 575

1500 1290 1170 1034 915 795 675 600

6 1861 1600 1451 1284 1135 986 837 744

6 1952 1679 1522 1346 1190 1034 878 780

12 2248 1933 1754 1551 1372 1191 1012 899

1099 945 857 758 670 582 494 439

1217 1046 949 840 742 644 547 486

1270 1091 990 876 775 672 571 507

6 1576 1355 1229 1088 961 835 709 630

6 1654 1422 1289 1141 1009 876 744 661

12 1906 1639 1486 1314 1162 1010 857 762

1071 921 835 740 653 567 482 4281176 1012 918 811 717 623 529 4701243 1068 969 857 757 658 558 496

6 1647 1417 1285 1136 1005 873 741 6596 1735 1492 1352 1197 1058 919 780 69412 1918 1649 1496 1323 1170 1016 863 767

MODEL C A P A C I T I E S 17IRVS

4" x 4"52 Fin / Ft.3/4" Dia.

3" x 4"52 Fin / Ft.3/4" Dia.

4" x 4"52 Fin / Ft.

1" Dia.

3" x 4"52 Fin / Ft.

1" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.

3" x 4"48 Fin / Ft.1 1/4" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.



ELEMENTSC/C

(INCHES)

ARRANGE-MENTS

END PIECE

A-

B- C-

D- E- G-

OUTSIDE CORNER


13 3/4"

7"

18"

9"

24"

9"

9"

6"24"

9"

6"24"

9"

12"30"

1 5/8"

5"*6 7/8"

6 7/8"*9 1/2"

7"9"

6"12"

6"12"

13 3/4"18"24"30"

2 3/4"

5 1/4"2 3/4" Hanging

Strip

TopSupport

CabinetSupportRC-6

ElementSupportRE-1

WallAngle

H

Anc

horin

g

MODEL D I M E N S I O N S18 RVSVS

* Special dimensions for 13 3/4” high cabinet.

OPTION 1

OPTION 2

OPTION 3

ACCESS PANEL

Type RAF

NO.200 190 180 170 160 150 140

44C1

34C1

44C2

34C2

44C3

34C3

44S3

ELEMENT





A

B E

C

D

G

A

B E

C

D

G

A

B E

C

D

G

A

B E

C

D

G

A

B E

C

D

G

A

B E

C

D

G

A

B E

C

D

G

1321 1136 1030 911 805 700 594 528

1421 1221 1108 980 867 753 639 568

1596 1373 1244 1101 973 846 718 638

6 2071 1780 1615 1428 1262 1097 932 828

12 2709 2329 2112 1870 1652 1436 1219 1083

1119 962 872 771 682 593 503 447

1204 1034 938 830 734 638 541 481

1352 1163 1054 932 825 717 608 541

6 1754 1509 1369 1210 1071 929 789 701

12 2295 1974 1790 1584 1400 1216 1033 918

1329 1143 1035 917 810 703 597 531

1430 1229 1114 986 872 757 643 571

1606 1380 1252 1108 979 851 723 642

6 2083 1791 1625 1437 1270 1103 937 833

12 2725 2343 2125 1880 1662 1444 1226 1090

1125 967 877 776 685 595 505 449

1210 1040 944 835 738 641 544 484

1360 1170 1061 938 822 721 612 544

6 1765 1517 1377 1217 1077 935 794 706

12 2309 1985 1800 1593 1408 1223 1039 923

1337 1149 1042 922 815 708 600 535

1438 1237 1122 992 877 762 647 575

1615 1389 1260 1114 986 856 727 646

6 2094 1802 1634 1445 1278 1109 942 837

12 2741 2357 2138 1891 1672 1453 1233 1097

1131 972 882 780 689 599 508 452

1217 1046 949 840 742 644 547 486

1368 1176 1067 944 833 724 615 547

6 1775 1526 1384 1224 1082 940 798 710

12 2322 1998 1811 1602 1417 1230 1045 928

1078 927 840 744 657 571 485 431

1160 997 904 801 707 615 522 464

1288 1105 1004 888 785 682 579 515

6 1799 1547 1403 1241 1097 953 809 719

12 2156 1853 1681 1488 1314 1142 970 862

MODEL C A P A C I T I E S 19RVSVS

4" x 4"52 Fin / Ft.3/4" Dia.

3" x 4"52 Fin / Ft.3/4" Dia.

4" x 4"52 Fin / Ft.

1" Dia.

3" x 4"52 Fin / Ft.

1" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.

3" x 4"48 Fin / Ft.1 1/4" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.



ELEMENTSC/C

(INCHES)

ARRANGE-MENTS

END PIECE

A-

B- C- D-

E- G-

OUTSIDE CORNER


7"10"

7"

16"6"

7"

16"6"

7"

16"6"

7"

22"6"

6"

7"

22"12"

MODEL D I M E N S I O N S20 RVP

1 5/8"

7 1/2"

1 3/4"

2 7/8"

6"12"

6"12"

7"

10"16"22"

2 3/4"

5 1/4"

3 1/4"

H

Hanging Strip

ElementSupportRC-8-6

ElementSupportRE-3

Floor

Floor angle

6 7/8"

Anc

horin

g

4" x 4"Element

ElementSupportRE-3

OPTION 1

OPTION 2

OPTION 3

ACCESS PANEL

Type RAF

NO.200 190 180 170 160 150 140

44C1

34C1

44C2

34C2

44C3

34C3

44S3

ELEMENT





A

B

C

D

E

G

A

B

C

D

E

G

A

B

C

D

E

G

A

B

C

D

E

G

A

B

C

D

E

G

A

B

C

D

E

G

ABCDEG

1281 1102 999 884 782 678 576 512

1281 1102 999 884 782 678 576 512

1409 1211 1099 972 859 746 634 564

6 1866 1604 1455 1287 1137 989 839 746

6 2033 1748 1585 1403 1241 1077 915 813

12 2277 1958 1777 1571 1389 1206 1024 910

1085 933 847 749 661 575 488 434

1085 933 847 749 661 575 488 434

1194 1027 931 825 728 632 537 478

6 1581 1360 1233 1091 964 837 711 632

6 1724 1482 1343 1190 1051 913 775 689

12 1930 1659 1505 1331 1176 1023 868 772

1289 1108 1005 889 785 683 580 515

1289 1108 1005 889 785 683 580 515

1417 1218 1105 978 864 751 638 566

6 1877 1613 1464 1295 1144 995 844 751

6 2045 1760 1595 1411 1247 1084 920 818

12 2291 1969 1785 1581 1397 1214 1030 916

1091 938 850 752 666 578 490 436

1091 938 850 752 666 578 490 436

1201 1033 937 828 731 636 540 480

6 1590 1369 1241 1097 969 842 715 636

6 1734 1491 1352 1196 1057 919 780 694

12 1941 1669 1513 1339 1183 1028 873 776

1296 1115 1012 894 791 687 583 519

1296 1115 1012 894 791 687 583 519

1425 1226 1112 983 869 755 641 570

6 1888 1624 1472 1302 1151 1000 850 755

6 2057 1768 1604 1420 1255 1090 926 823

12 2304 1981 1797 1590 1405 1221 1036 921

1097 944 855 757 669 581 493 439

1097 944 855 757 669 581 493 439

1208 1039 942 833 736 640 543 483

6 1600 1375 1247 1103 976 847 719 639

6 1744 1499 1360 1203 1063 924 785 697

12 1952 1678 1522 1346 1190 1034 878 780

1060 911 826 731 646 561 477 4231060 911 826 731 646 561 477 4231166 1003 910 804 711 618 524 466

6 1544 1327 1204 1065 941 818 694 6176 1683 1447 1312 1161 1026 892 757 67312 1885 1621 1473 1301 1149 999 848 754

MODEL C A P A C I T I E S 21RVP

4" x 4"52 Fin / Ft.3/4" Dia.

3" x 4"52 Fin / Ft.3/4" Dia.

4" x 4"52 Fin / Ft.

1" Dia.

3" x 4"52 Fin / Ft.

1" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.

3" x 4"48 Fin / Ft.1 1/4" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.



ELEMENTSC/C

(INCHES)

ARRANGE-MENTS

END PIECE

ACCESS PANEL

A- B- C-

D- E- G-

H- J- K-

CORNER

WALL TRIM

6"3"

12"

3"

18"

3"

12"6"

3"

18"

6"

3"

18"12"

3"

12"6"

3"

18"

6"

6"

3"

18"

6"

6"

3"

MODEL D I M E N S I O N S22 RVCES

HElementSupportRE-1 Spc

7"

6"12"

6"12"18"

4" ±

4"

5 3/4"

3 5/8"

ElementSupportRE-1 Spc

Floor

LinkComplete with nuts

Cabinet& ElementSupport

AdjustableCabinetPedestal

NOT AVAILABLE

Type RAF

NO.200 190 180 170 160 150 140

44C1

34C1

44C2

34C2

44C3

34C3

44S3

ELEMENT





A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A H

B J

C

D K

E

G

A HB JCD KEG

1594 1370 1243 1099 972 844 717 638

1805 1552 1408 1245 1101 956 812 722

2028 1743 1581 1399 1237 1074 912 811

6 2330 2003 1816 1607 1421 1234 1048 932

6 2679 2304 2089 1848 1634 1420 1205 1071

12 2984 2565 2326 2057 1819 1581 1342 1193

1350 1160 1052 931 823 715 607 540

1530 1316 1193 1056 933 811 689 612

1719 1477 1340 1186 1048 910 773 687

6 1974 1697 1539 1362 1204 1046 887 789

6 2270 1952 1771 1566 1386 1203 1021 908

12 2528 2173 1972 1744 1542 1340 1137 1011

1603 1378 1250 1105 978 850 721 641

1816 1561 1417 1252 1107 962 817 726

2040 1754 1591 1408 1244 1081 918 816

6 2343 2015 1828 1615 1428 1242 1054 937

6 2695 2317 2101 1859 1643 1428 1212 1078

12 3001 2581 2341 2071 1830 1590 1350 1200

1357 1167 1058 935 828 719 610 542

1539 1323 1199 1061 938 815 692 615

1729 1488 1348 1193 1054 916 778 691

6 1985 1707 1547 1369 1210 1051 893 794

6 2284 1964 1781 1576 1394 1210 1028 913

12 2542 2186 1982 1754 1550 1347 1143 1017

1612 1386 1258 1112 983 854 725 644

1826 1570 1424 1260 1114 967 821 730

2052 1765 1600 1415 1251 1087 923 820

6 2357 2026 1838 1627 1437 1249 1060 943

6 2711 2331 2114 1870 1653 1437 1220 1084

12 3019 2596 2355 2083 1841 1600 1358 1207

1365 1173 1064 942 833 723 614 546

1547 1330 1207 1067 944 819 696 619

1739 1496 1356 1199 1061 921 782 695

6 1997 1717 1557 1377 1217 1057 898 798

6 2298 1975 1792 1585 1401 1217 1034 919

12 2557 2198 1994 1764 1559 1355 1150 1023

1267 1090 988 874 774 672 570 5071413 1216 1102 974 862 748 635 5641539 1323 1199 1061 938 815 692 615

6 1799 1547 1403 1241 1097 954 809 7196 2067 1777 1612 1426 1261 1095 930 82612 2519 2168 1964 1738 1537 1335 1133 1007

MODEL C A P A C I T I E S 23RVCES

4" x 4"52 Fin / Ft.3/4" Dia.

3" x 4"52 Fin / Ft.3/4" Dia.

4" x 4"52 Fin / Ft.

1" Dia.

3" x 4"52 Fin / Ft.

1" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.

3" x 4"48 Fin / Ft.1 1/4" Dia.

4" x 4"48 Fin / Ft.1 1/4" Dia.



ELEMENTSC/C

(INCHES)

ARRANGE-MENTS

TopSupport

Elements

Linkcompletewith nuts

10 1/4"

3 5/8" 3 5/8"

8 1/2"

6"

4"

7"

Adjustable Pedestal

Element& CabinetSupport

Type RAF

NO.200 190 180 170 160 150 140

ELEMENTC/C(PO)

ELEMENT

DIM. STEAM

1 PSIGFIN / TUBE

BTU / HR / LIN. FT. 65°F ENT. AIR


ALUMINUM FINS - COPPER TUBE

END PIECE

CORNER

WALL TRIM

MODEL D I M E N S I O N S24 RVCED



44C134C144C234C244C334C3

44S3

3123 2685 2435 2154 1905 1655 1405 1250

2602 2237 2029 1795 1587 1379 1170 1041

3141 2701 2450 2167 1916 1664 1413 1256

2617 2250 2042 1805 1596 1387 1177 1047

3159 2716 2464 2179 1926 1674 1421 1264

2632 2263 2053 1816 1605 1394 1184 1052

2371 2039 1849 1635 1446 1256 1066 948

4” x 4” / 3/4” diam.

3” x 4” / 3/4” diam.

4” x 4” / 1” diam.

3” x 4” / 1” diam.

4” x 4” / 1 1/4” diam.

3” x 4” / 1 1/4” diam.

4” x 4” / 1 1/4” diam. 4 5/8”

4 5/8”

4 5/8”

4 5/8”

4 5/8”

4 5/8”

4 5/8”

O P T I O N A L A C C E S S O R I E S 25

5"

7"5"

7"

5"

7"

Screw

Blade

Knob

Pivot

4"Min

Typ.4"

3 3/4"

5"11"17"

1 1/4"

HangingStrip

4"

ACCESS PANEL (OVERLAPPING)(OPTION 1)

- Supplied with an underlap wall anglefiller piece.

- Available in 12, 18 and 24 inch long.- Also available with welded end cap

and rounded corners.

ACCESS PANEL (BUTT-JOINT)(OPTION 2)

- Supplied with an underlap wall anglefiller piece.

- Available in 12 to 24 inch Iong.- Can also be supplied with a hinged top.- Critical installation.- Precised job measurement needed.- Also available with welded end cap

and rounded corners.

ACCESS PANEL (BUTT-JOINT)(OPTION 3)

- Supplied with an overlapping filler pieceand one additional cabinet support.

- Available in 12, 18 and 24 inch Iong.- Highly recommended when delivery is

urgent, and field measurements arenot available.

- Access panel can be cut on wall sideand covered with the overlap suppliedjoiner [2 inch wide].

- Also available with welded end cap.

END PIECE (OVERLAPPING)(OPTION 4)

- Permits installer to maintain apre-determined measurementfrom adjoining wall.

- Available in 4, 5, 6, 8 inch wide.

SPACERS(OPTION 5)

- For use in areas where panels aresubject to frequent removal.

- Prevents scratching of wall.- Recommended for hospital use for

ease of maintenance.- Channel dimension: 3/8” x 5” x 96”

long.- Cabinet hanging strip is spot welded

to extended hanging channel.

EXTRUDED ALUMINUM GRILLE(OPTION 6) (# EAG - 3500)

- Instead of outlet punched louver.

Rosemex enclosures offer damper controlwhere applications require it. Damper isoperated by a triple lead thread which pro-vides a fast, positive and easy working unit.Tamper proof damper operator is also avail-able upon request for special conditions.

STANDARD TAMPER PROOFDAMPER DAMPER

PILASTER COVER

Pilaster covers are available in 5”, 11” and17” heights. Each consists of two outsidecorners and three dummy cabinets to suitpredetermined dimensions.

ACCESS DOORS

FACTORY MOUNTED Access doors are used for access tovalves or controls located inside enclosure.Latch catches are furnished as standard.Doors with allenhead camlock fastenersare also available.

FIELD MOUNTED Available immediately from stock in bothlatch catch and camlock fastener types.Enclosure opening for field mountedaccess door is perforated on jobsite bycontractor. Framed access door is suppliedby factory and is installed over opening.

9/16"

3 1/2"

Spacer for support

Spacer for end cap

S Y S T E M D E S I G N I N G26

1 SYSTEM DESIGNING FLEXIBILITY(COPPER TUBE ONLY)

The different tube sizes shown in our catalogueenables a designer to select a size for differentapplications which allows him to balance his systemand reduce problems of balancing after installation.

Just as distribution piping is sized in accordancewith the load, so can a fin-tube run be sized inaccordance with the load, within the limits ofavailable tube size.

2Where low flow rates occur, the smaller tube sizescan be used effectively to avoid the low “critical”velocity range.The Institute of Boiler and Radiator Manufacturerssponsored a test program at the University ofIllinois to determine the effect of water velocity onheat output of various sizes in fin-tube elements.Fig. 1 is a plot of the results of this program show-ing rating factors versus velocity.The 1969 Equipment Volume of ASHRAE Guideand data Book points out on page 393 that the rat-ing factor drops rapidly between 0.4 and 0.25Ft/Sec. water velocity where flow changes fromturbulent to streamline flow, and VELOCITIES

BELOW THIS RANGE SHOULD BE AVOIDED ina hot water heating system, since the results can-not be accurately predictable.

From table 1 it is apparent that the rating factordrops even more rapidly with water velocity below0.25 Ft / Sec. thus seriously affecting the heat out-put of the fin-tube unit. Il is therefore recommend-ed that the designer check the velocity on low-load units and select the heating elemenl tubesize that will provide a velocity above the “critical”range. If the velocity should be too low, even thesmallest available tube size, the design water flowrate should be increased to that unit.

4Where perimeter fin-tube heating is used on sys-tems having very low water temperatures, the lowheat transfer rate may require a large size fin to

offset heat losses and at the same time mayrequire a small size tube because of the smalltotal load.

5Use of the small tube sizes result in lower cost forconnecting piping in a run, for valves, expansionjoints, fittings, etc., as well as lower heating ele-

ment cost; and when used to balance resistanceson the various run, distribution piping and pumpsizes are not affected.

TUBE DIAMETERS

3/4” 1” 1 1/4”

3Where optimum system design dictates a temper-ature drop higher than the “standard 20° T.D.”, theattendant lower flow rate may require a small tubesize to provide a desirable velocity.EXAMPLE: Using the relation

B.T.U.G.P.M. =

500 x T.D.

and assuming a fin-tube run with a connected load

of 20,000 B.T.U., the flow rate would be 2 G.P.M.based on a 20° T.D. The velocity through a 1 1/4”copper fin-tube would be 0.55 Ft / Sec. (from Fig. 1)which is above the “critical” velocity of 0.25 Ft / Sec.Should it be desired to use a 40° T.D., however, theflow rate would be 1 G.P.M. and the velocity wouldbe close to the “critical”. In this case a 1” or prefer-ably a 3/4” copper fin-tube heating element wouldprovide a “safe” velocity thus making a 40° T.D. fea-sible.

HIGHER WATER VELOCITY

ECONOMICAL

HEAT RECOVERY OR TOTAL ENERGY SYSTEM

HIGHER TEMPERATURE DROP POSSIBLE

ADVANTAGES OF SMALL TUBE SIZING

C O R R E C T I O N F A C T O R S 27

3

2

1

00 2 4 6 12 148 1610

VELOCITY FT/SEC.

VS

G.P.M.

3/4"

CO

PPER

1" COPPER

1 1/4" COPPER

1 1/4" STEEL

RATE OF FLOW G.P.M.

VE

LOC

ITY

FT

/SE

C.

CORRECTION FACTORS FOR STEAM PRESSURE AND AIR TEMPERATURES OTHER THAN STANDARD

TABLE 3

WATER VELOCITY CORRECTION FACTORS

The curves in Fig. 1 can be used to check water velocity in heating element tub-ing. A minimum velocity of 0.25 Ft / Sec. is recommended to ensure turbulent flowof water.

Heating elements are catalogued with three different copper tube sizes (3/4”,1”, 1 1/4”) for a broader range of selection. Note that 3/4” tube elements can beused with flow rates as low as 0.4 G.P.M.

FIG. 1

NOTE: The factors in TABLE 1 may be usedonly when the water flow rate through thefinned tube unit is known and where the flowrate is less than 3 Ft / Sec.To determine the output at less than 3 Ft /Sec.,multiply the catalog water ratings by the fac-tor in this table.

CORRECTION FACTORS FOR AVERAGEWATER TEMPERATURES AND ENTERINGAIR TEMPERATURES OTHER THANSTANDARD

To correct for water or air temperatures otherthan standard, multiply the catalog BTU steamrating (215° Av. W.T., 65° E.A.T.) by the factorobtained from TABLE 2.

NOTE: The factors in TABLE 2 are not equal to,but approximate, factors for saturated steamtemperatures and entering air temperaturesshown in TABLE 3.

TABLE 2

EXPANSIONElements - The saddle supporting the heating elements allows amaximum travel of 1 5/8” for expansion and contraction.Enclosure - The extruded aluminum grille expands approximately0.1” per 8’ enclosure length when heat is applied under normal condi-

tions. End enclosures, where used, will expand with the enclosure. Onwall to wall application, the enclosure will expand within the overlap-ping end piece. On long runs of 50’ to 100’ or over, enclosure joints atcenter of run, or at specified intervals could be spread and coveredwith an end piece instead of taking up expansion only at end of run.

TABLE 1WATER IBR

VELOCITY CONNECTION(FT/SEC.) FACTORS

0.20 Laminar Flow

0.25 0.905

0.50 0.931

1.00 0.957

1.50 0.973

2.00 0.984

2.50 0.992

3.00 or more 1.000

AVG.WATER

TEMP. °F

ENTERING AIR TEMPERATURE, °F

150 0.61 0.57 0.53 0.49 0.45 0.43 0.42 0.38 0.34 0.31

160 0.69 0.65 0.61 0.57 0.53 0.51 0.49 0.45 0.42 0.38

170 0.82 0.77 0.72 0.67 0.61 0.59 0.57 0.53 0.48 0.44

180 0.91 0.86 0.81 0.75 0.69 0.67 0.65 0.61 0.56 0.52

190 1.00 0.94 0.89 0.84 0.78 0.75 0.73 0.69 0.64 0.60

200 1.09 1.03 0.97 0.92 0.86 0.83 0.81 0.77 0.72 0.68

210 1.18 1.12 1.06 1.01 0.95 0.92 0.90 0.85 0.80 0.76

215 1.22 1.16 1.10 1.05 1.00 0.97 0.94 0.89 0.84 0.80

220 1.27 1.21 1.15 1.09 1.04 1.01 0.98 0.93 0.88 0.84

230 1.37 1.30 1.24 1.19 1.14 1.11 1.08 1.03 0.98 0.93

240 1.47 1.41 1.35 1.26 1.24 1.20 1.17 1.12 1.07 1.02

250 1.57 1.50 1.44 1.38 1.32 1.29 1.26 1.20 1.15 1.10

45 50 55 60 65 68 70 75 80 85

STEAM ENTERING AIR TEMPERATURE, °F

PRESSURE TEMP

GAGE T ABS. PSI. °F

(Vac) 15” Hg 7.32 178.9 0.90 0.80 0.70 0.67 0.65 0.60 0.56 0.51 0.45 0.39 0.32 0.25 0.18 0.13 0.08(Vac) 10” Hg 9.78 192.2 1.02 0.91 0.81 0.78 0.76 0.71 0.66 0.62 0.55 0.48 0.40 0.33 0.26 0.20 0.14(Vac) 5” Hg 12.25 202.9 1.11 1.00 0.90 0.87 0.85 0.79 0.75 0.70 0.63 0.56 0.48 0.40 0.33 0.27 0.20

0 PSI 14.696 212.0 1.19 1.09 0.97 0.94 0.92 0.87 0.82 0.77 0.70 0.63 0.54 0.46 0.38 0.31 0.250.899 15.595 215.0 1.22 1.11 1.00 0.97 0.95 0.90 0.84 0.80 0.75 0.65 0.57 0.48 0.40 0.33 0.26

5 19.70 227.1 1.34 1.22 1.11 1.08 1.05 1.00 0.95 0.90 0.81 0.75 0.66 0.57 0.49 0.41 0.3410 24.70 239.4 1.45 1.33 1.22 1.19 1.17 1.11 1.05 1.00 0.91 0.85 0.75 0.66 0.58 0.50 0.4215 29.70 249.8 1.55 1.43 1.31 1.28 1.26 1.20 1.14 1.09 1.00 0.94 0.84 0.75 0.66 0.57 0.4920 34.70 258.8 1.63 1.52 1.40 1.36 1.33 1.28 1.23 1.17 1.07 1.02 0.92 0.82 0.73 0.64 0.5525 39.70 266.8 1.71 1.59 1.47 1.44 1.41 1.36 1.30 1.25 1.15 1.09 0.98 0.89 0.80 0.71 0.6230 44.70 274.0 1.78 1.66 1.54 1.51 1.48 1.42 1.37 1.31 1.21 1.15 1.05 0.95 0.85 0.76 0.6840 54.70 266.7 1.91 1.79 1.66 1.63 1.61 1.54 1.49 1.43 1.32 1.27 1.16 1.06 0.97 0.87 0.78

45 55 65 68 70 75 80 85 90 100 110 120 130 140 150

Printed in Canada

MECAR METAL INC.

1560, Marie-Victorin blvdSaint-Bruno (Quebec)J3V 6B9Tel.: (450) 653-1002Fax: (450) 653-3464

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