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Table 10 — Required Suction-Tube Temperature (F)*
SUPERHEAT
TEMP (F)
SUCTION PRESSURE AT SERVICE PORT (psig)
61.5 64.2 67.1 70.0 73.0 76.0 79.2 82.4 85.7
0 35 37 39 41 43 45 47 49 51
2 37 39 41 43 45 47 49 51 53
4 39 41 43 45 47 49 51 53 55
6 41 43 45 47 49 51 53 55 57
8 43 45 47 49 51 53 55 57 59
10 45 47 49 51 53 55 57 59 61
12 47 49 51 53 55 57 59 61 63
14 49 51 53 55 57 59 61 63 65
16 51 53 55 57 59 61 63 65 67
18 53 55 57 59 61 63 65 67 69
20 55 57 59 61 63 65 67 69 71
22 57 59 61 63 65 67 69 71 73
24 59 61 63 65 67 69 71 73 75
26 61 63 65 67 69 71 73 75 77
28 63 65 67 69 71 73 75 77 79
30 65 67 69 71 73 75 77 79 81
32 67 69 71 73 75 77 79 81 83
34 69 71 73 75 77 79 81 83 85
36 71 73 75 77 79 81 83 85 87
38 73 75 77 79 81 83 85 87 89
40 75 77 79 81 83 85 87 89 91
*Temperature at suction service valve.
Table 11 — Dry-Coil Air Delivery* — Horizontal Discharge at 230 and 460 V — Unit 48SS
(Deduct 10% from Cfm and Watts for 208 V Operation)
UNIT
48SS
MOTOR
SPEED
AIR
DELIVERY
EXTERNAL STATIC PRESSURE (in. wg)
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
018
Low
Watts 230 225 220 210 195 170 †††††
Cfm 760745725695640540†††††
High
Watts ††††270235200††††
Cfm ††††850700450††††
024,
030
Low
Watts 275 275 273 269 260 257 249 ††††
Cfm 857835802782745717663††††
Med
Watts 371 368 360 349 345 326 319 304 293 † †
Cfm 1079 1063 1027 996 978 919 865 783 726 † †
High
Watts 514 493 476 460 443 425 401 378 344 † †
Cfm 1409 1383 1324 1282 1223 1156 1068 984 857 † †
036
Low
Watts 473 447 427 418 395 367 346 337 323 † †
Cfm 1253 1253 1172 1130 1047 946 865 829 768 † †
Med
Watts 519 500 478 459 439 410 377 357 340 † †
Cfm 1414 1366 1287 1234 1162 1074 920 829 743 † †
High
Watts 667 634 609 593 564 541 506 469 436 422 †
Cfm 1734 1639 1563 1461 1370 1292 1157 960 829 743 †
042
Low
Watts 678 635 604 580 550 520 493 455 430 † †
Cfm 1540 1515 1475 1430 1375 1280 1225 1128 1020 † †
High
Watts † 820 785 750 700 680 649 612 570 † †
Cfm † 1825 1750 1685 1610 1525 1485 1355 1215 † †
048
Low
Watts † † 854 786 744 706 641 606 557 511 †
Cfm † † 2026 1905 1830 1752 1603 1513 1367 1228 †
High
Watts † † † 905 846 824 804 748 683 637 †
Cfm † † † 2025 1905 1830 1752 1603 1398 1228 †
060
Low
Watts 1104 1093 1072 1029 986 938 891 830 769 733 697
Cfm 1876 1865 1840 1803 1765 1710 1641 1533 1425 1345 1264
Med
Watts 1351 1295 1245 1197 1148 1096 1053 994 936 871 812
Cfm 2249 2209 2157 2097 2036 1959 1882 1781 1679 1542 1405
High
Watts † † 1391 1343 1296 1247 1191 1129 1067 1002 936
Cfm † † 2299 2231 2152 2060 1975 1859 1746 1591 1441
*Air delivery values are without air filter and are for dry coil. See
Table 17 for wet coil pressure drop. Deduct field-supplied air filter
pressure drop and wet coil pressure drop to obtain external static
pressure available for ducting.
†Unit air delivery is outside of operating range.
NOTE: Do not operate the unit at a cooling airflow that is less than
350 cfm for each 12,000 Btuh of rated cooling capacity. Evaporator-
coil icing may occur at airflows below this point. Water blow-off may
occur at airflows above 450 cfm per 12,000 Btuh of rated cooling
capacity.
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