Lennox MERIT Series Installation Instructions Manual page 38

ML180UH090E48B PERFORMANCE (Less Filter)
External
Static High
(Black)
Pressure
in. w.g.
cfm
0.00 1785
0.10 1755
0.20 1730
0.30 1690
0.40 1645
0.50 1615
0.60 1590
0.70 1545
0.80 N/A
ML180UH090E60C PERFORMANCE (Less Filter)
Bottom Return Air, Side Return Air from Both Sides or
Return Air from Bottom and One Side.
External
Static
Pressure
in. w.g.
High Med-High
(Black) (Brown)
cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts
0.00 2255 640 1940 420 1750 310 1580 230 1485 185 2290 655 1980 425 1775 310 1605 235 1495 195
0.10 2200 655 1910 440 1705 315 1535 240 1385 190 2250 675 1945 445 1730 320 1555 245 1400 190
0.20 2150 675 1865 450 1655 340 1490 260 1340 205 2210 695 1885 465 1680 340 1510 265 1350 205
0.30 2125 695 1835 475 1635 355 1450 275 1285 215 2165 715 1850 475 1645 355 1470 275 1285 215
0.40 2090 715 1800 495 1585 370 1405 285 1235 230 2135 720 1810 490 1595 370 1410 290 1225 230
0.50 2060 735 1760 510 1545 385 1370 305 1200 245 2070 735 1765 515 1545 390 1370 305 1180 245
0.60 2020 750 1725 525 1515 405 1320 320 1145 255 2030 760 1715 530 1495 405 1325 320 1140 255
0.70 1980 765 1680 540 1465 420 1265 330 1105 270 1990 775 1685 540 1450 425 1265 330 1095 270
0.80 1935 785 1635 560 1420 435 1225 350 1055 285 1950 795 1645 560 1415 435 1225 345 1040 285
Air Volume / Watts at Various Blower Speeds
Medium-High
(Brown)
Watts cfm Watts
380 1570 270
395 1535 275
415 1505 290
435 1460 305
440 1435 320
455 1395 335
470 1350 350
475 1300 360
N/A 1270 370
Air Volume / Watts at Different Blower Speeds
Medium Med-Low
(Blue) (Yellow)
Medium
(Blue)
cfm Watts
1440 220
1420 230
1380 245
1345 260
1310 270
1265 285
1210 290
1175 305
1140 310
Single Side Return Air − Air volumes in bold require
Optional return Air Base and field fabricated transition to
accommodate 20 x 25 x 1 in. air filter in order to maintain
proper air velocity.
Low High Med-High
(Red) (Black) (Brown)
Page 38
Medium-Low
(Yellow)
cfm Watts cfm
1395 190 1190
1350 205 1140
1310 215 1110
1275 230 1065
1240 240 1010
1180 255 955
1150 265 915
1095 275 860
1040 285 820
Medium Med-Low
(Blue) (Yellow)
Low
(Red)
Watts
120
130
145
155
165
180
185
200
210
Low
(Red)