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Table 2. Furnace Airflow Data
Heating
Model Input Motor Motor
Number (Btuh) Speed HP
Hi
g
h*
G6RD080C-14 80,000
Med-High
1/2
Med-Low**
Low
Hi
g
h*
G6RD100C-14 100,000 Med-Hi
g
h** 1/2
Med-Low
Low
Hi
g
h*
G6RD120C-14 120,000 Med-Hi
g
h** 1/2
Med-Low
Low
Hi
g
h*
G6RD120C-19 120,000
Med-High
3/4
Med-Low**
Low
External Static Pressure (Inches Water Column)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise
1620 - 1560 45 1490 47
1430
49 1365 52 1300 54 1240 57 1170 60
1450 49 1400 50 1350 52
1295
54 1240 57 1180 60 1120 63 1060 66
1255 56 1225 57 1180 60
1145
61 1105 64 1060 66 1020 69 980 72
1080 65 1055 67 1030 68
1000
70 960 73 920 - 870 - 820 -
1620 54 1555 57 1485 59
1425
62 1355 65 1290 68 1220 72 1160 -
1430 62 1375 64 1330 66
1265
70 1210 73 1150 - 1080 - 1010 -
1260 70 1220 72 1170 75
1130
- 1070 - 1010 - 950 - 890 -
1085 - 1050 - 1015 - 970 - 935 - 890 - 850 - 800 -
1700 62 1635 65 1565 67
1500
70 1435 74 1370 77 1310 - 1240 -
1510 70 1455 73 1405 75
1350
78 1290 - 1230 - 1170 - 1100 -
1330 79 1280 - 1240 -
1195
- 1145 - 1100 - 1050 - 1000 -
1140 - 1110 - 1075 -
1040
- 1010 - 980 - 940 - 910 -
2140 - 2070 - 2010 -
1945
- 1870 56 1800 59 1730 61 1650 64
1955 - 1900 56 1850 57
1800
59 1740 61 1690 62 1630 65 1570 67
1660 64 1620 65 1575 67
1540
69 1495 71 1460 72 1410 75 1370 77
1450 73 1430 74 1400 75
1360
78 1340 79 1300 81 1270 83 1230 -
1280 - 1210 - 1180 - 1140 - 1090 - 1070 - 1030 - 990 -
1140 - 1090 - 1060 - 1030 - 980 35 950 36 910 37 870 39
875 39 835 41 820 41 805 42 780 43 770 44 760 45 750 45
1260 40 1190 43 1155 44 1120 45 1075 47 1030 49 980 52 940 54
1120 45 1070 48 1040 49 1010 50 960 53 930 55 890 57 850 60
855 59 815 62 800 64 780 65 760 67 730 70 710 - 690 -
1635 - 1585 - 1525 - 1460 46 1400 48 1330 51 1260 54 1180 57
1435 47 1395 49 1350 50 1300 52 1255 54 1200 56 1150 59 1090 62
1230 55 1200 56 1165 58 1130 60 1090 62 1050 65 1000 68 960 71
1050 - 1035 - 1010 - 980 - 950 - 910 - 870 - 820 -
1600 53 1555 54 1500 56 1445 59 1380 61 1310 65 1240 68 1160 73
1475 57 1435 59 1385 61 1335 63 1290 66 1240 68 1190 71 1130 75
1320 - 1290 - 1250 - 1215 - 1170 - 1120 - 1070 - 1020 -
1150 - 1130 - 1110 - 1075 - 1040 - 1000 - 950 - 890 -
High*
G6RL040C-12 40,000 Medium 1/3
Low**
High*
G6RL060C-12 60,000 Medium 1/3
Low**
High*
G6RL080C-16 80,000 Med-High 1/2
Med-Low**
Low
High*
G6RL100C-16 100,000 Med-High** 1/2
Med-Low
Low
NOTES: 1. Airflow rates of 1800 CFM or more require two return air connections. Data is for operation with filter(s).
2. Temperature rises in the table are approximate. Actual temperature rises may vary.
3. Temperature rises and airflows for external static pressures greater than 0.5 are for reference only.
These conditions are not recommended.
** Factory Set Cooling Speed
** Factory Set Heating Speed
- Not Recommended