Airflow Data - Nordyne M4RC54D-24B Installation Instructions Manual

Heating
Model
Input
Number
(Btuh)
54,000
54,000
72,000
72,000
72,000
90,000
90,000
90,000
108,000
108,000
90,000
* Factory Set Cooling Speed
** Factory Set Heating Speed
1. Two openings are recommended for airflows above 1,600 CFM if filter(s) is(are) adjacent to furnace.
2. Temperature rises in the table are approximate. Actual temperature rises may vary.
3. Temperature rises shaded in gray are for reference only. These conditions are not recommended.
38

Airflow Data

Motor
0.1 0.2
Speed
CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise
High* 1550 30 1520
Med-High 1250 37 1220
Med-Low** 935 49 910
Low 720 — 690
High* 1630 — 1595
Med-High 1315 35 1280
Med-Low** 980 47 955
Low 755 — 725
High* 1895 — 1790
Med-High** 1775 35 1710
Med-Low 1255 49 1200
Low 1140 54 1100
High* 1970 — 1865
Med-High** 1845 — 1780
Med-Low 1305 47 1250
Low 1185 52 1145
High* 1990 — 1880
Med-High** 1865 — 1795
Med-Low 1320 46 1260
Low 1200 51 1155
High* 2155 36 2090
Med-High** 2015 38 1960
Med-Low 1705 45 1675
Low 1410 54 1390
High* 2240 — 2175
Med-High** 2095 37 2040
Med-Low 1775 43 1740
Low 1465 52 1445
High* 2265 — 2195
Med-High** 2115 36 2060
Med-Low 1790 43 1760
Low 1480 52 1460
High* 2135 43 2095
Med-High** 2000 46 1955
Med-Low 1665 55 1660
Low 1385 66 1360
High* 2115 43 2075
Med-High** 1980 46 1935
Med-Low 1650 56 1645
Low 1370 67 1345
High* 1,955 39 1,905
Med-High** 1,845 42 1,790
Med-Low 1,320 58 1,290
Low 1,190 64 1,165
Table 7. M4RC & M4RL Blower Performance
Table 7 External Static Pressure (Inches Water Column)
0.3 0.4
30 1485 31 1450 32 1410
38 1200 38 1170 39 1140
51 880 52 850 54 815
— 655 — 620 — 585
— 1560 — 1525 30 1480
36 1260 37 1230 37 1200
48 925 50 890 52 855
— 690 — 650 — 615
— 1720 36 1630 38 1550
36 1650 37 1550 40 1470
51 1155 53 1105 56 1050
56 1065 58 1025 60 980
— 1780 — 1695 36 1615
— 1715 36 1615 38 1530
49 1200 51 1150 53 1090
54 1110 55 1065 58 1020
— 1805 — 1710 36 1630
— 1735 35 1630 38 1545
49 1215 50 1160 53 1105
53 1120 55 1075 57 1030
37 2015 38 1960 39 1910
39 1920 40 1860 41 1805
46 1640 47 1590 48 1555
55 1365 56 1330 58 1310
35 2100 37 2040 38 1985
38 2000 38 1935 40 1875
44 1705 45 1655 46 1615
53 1420 54 1385 55 1360
35 2115 36 2060 37 2005
37 2015 38 1955 39 1895
44 1725 44 1670 46 1635
53 1435 53 1400 55 1375
44 2040 45 1975 47 1910
47 1900 48 1845 50 1800
55 1625 57 1590 58 1530
68 1310 70 1300 — 1275
44 2020 46 1955 47 1890
48 1880 49 1830 50 1780
56 1610 57 1575 58 1515
68 1300 — 1290 — 1260
40 1,835 42 1,795 43 1,730
43 1,750 44 1,680 46 1,515
59 1,250 61 1,215 63 1,180
— 1,125 — 1,080 — 1,055
NOTES:
0.5 0.6 0.7
33 1360 34 1300 35
40 1105 42 1065 43
56 785 59 735 —
— 550 — 520 —
31 1430 32 1365 34
38 1160 40 1120 41
54 825 56 775 59
— 580 — 545 —
40 1445 42 1330 46
42 1385 44 1290 48
58 1000 61 925 —
63 930 — 870 —
38 1505 41 1385 44
40 1440 43 1340 46
56 1040 59 965 64
60 965 64 905 —
38 1510 41 1400 44
40 1455 42 1355 45
56 1050 58 970 63
60 975 63 915 —
40 1835 42 1755 44
42 1755 44 1695 45
49 1495 51 1435 53
59 1275 60 1235 62
39 1910 40 1825 42
41 1825 42 1765 43
47 1555 49 1490 51
56 1325 58 1285 60
38 1930 40 1845 42
40 1845 42 1780 43
47 1570 49 1510 51
56 1340 57 1300 59
48 1840 50 1735 53
51 1735 53 1665 55
60 1500 61 1415 65
— 1250 — 1200 —
49 1822 50 1720 53
52 1720 53 1650 56
61 1485 62 1400 66
— 1240 — 1190 —
44 1,620 47 1,545 50
51 1,540 50 1,475 52
65 1,120 — 1,050 —
— 1,000 — 945 —
0.8
1255 37
1010 46
680 —
485 —
1320 35
1060 43
715 —
510 —
1225 50
1180 52
830 —
805 —
1275 48
1230 50
865 —
840 —
1285 48
1240 49
875 —
845 —
1660 46
1615 47
1340 57
1210 63
1725 44
1680 46
1335 57
1260 61
1745 44
1695 45
1410 54
1270 60
1675 55
1570 59
1340 69
1150 —
1660 55
1555 59
1330 69
1140 —
1,450 53
1,410 54
970 —
875 —