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| CAPACITIES |
| Model | Heating | High* |
| 1280 | - | 1210 | - | 1180 |
| - | 1140 | - | 1090 | - | 1070 | - | 1030 | - | 990 | - | ||||||||
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| Number | Input | Motor | Motor |
| 0.1 |
| 0.2 | 0.3 |
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| 0.5 |
| 0.6 |
| 0.7 |
| 0.8 |
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| *RL- | (Btuh) | Speed | HP | CFM |
| Rise | CFM |
| Rise | CFM |
| Rise | CFM |
| Rise | CFM |
| Rise | CFM |
| Rise | CFM |
| Rise | CFM |
| Rise |
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| 40,000 | Medium | 1/3 | 1140 |
| - | 1090 |
| - | 1060 |
| - | 1030 |
| - | 980 |
| 35 | 950 |
| 36 | 910 |
| 37 | 870 |
| 39 | — | |
Table2.Furnace |
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| Low** |
| 875 |
| 39 | 835 |
| 41 | 820 |
| 41 | 805 |
| 42 | 780 |
| 43 | 770 |
| 44 | 760 |
| 45 | 750 |
| 45 | ||
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| High* |
| 1260 |
| 40 | 1190 |
| 43 | 1155 |
| 44 | 1120 |
| 45 | 1075 |
| 47 | 1030 |
| 49 | 980 |
| 52 | 940 |
| 54 |
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| 60,000 | Medium** | 1/3 | 1120 |
| 45 | 1070 |
| 48 | 1040 |
| 49 | 1010 |
| 50 | 960 |
| 53 | 930 |
| 55 | 890 |
| 57 | 850 |
| 60 |
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| Low |
| 855 |
| 59 | 815 |
| 62 | 800 |
| 64 | 780 |
| 65 | 760 |
| 67 | 730 |
| 70 | 710 |
| - | 690 |
| - |
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| High* |
| 1635 |
| - | 1585 |
| - | 1525 |
| - | 1460 |
| 46 | 1400 |
| 48 | 1330 |
| 51 | 1260 |
| 54 | 1180 |
| 57 |
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| 80,000 | 1/2 | 1435 |
| 47 | 1395 |
| 49 | 1350 |
| 50 | 1300 |
| 52 | 1255 |
| 54 | 1200 |
| 56 | 1150 |
| 59 | 1090 |
| 62 |
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| 1230 |
| 55 | 1200 |
| 56 | 1165 |
| 58 | 1130 |
| 60 | 1090 |
| 62 | 1050 |
| 65 | 1000 |
| 68 | 960 |
| 71 |
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| Low |
| 1050 |
| - | 1035 |
| - | 1010 |
| - | 980 |
| - | 950 |
| - | 910 |
| - | 870 |
| - | 820 |
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AirflowData |
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| High* |
| 1600 |
| 53 | 1555 |
| 54 | 1500 |
| 56 | 1445 |
| 59 | 1380 |
| 61 | 1310 |
| 65 | 1240 |
| 68 | 1160 |
| 73 | continued |
100,000 | 1/2 | 1475 |
| 57 | 1435 |
| 59 | 1385 |
| 61 | 1335 |
| 63 | 1290 |
| 66 | 1240 |
| 68 | 1190 |
| 71 | 1130 |
| 75 | ||||
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| 1320 |
| - | 1290 |
| - | 1250 |
| - | 1215 |
| - | 1170 |
| - | 1120 |
| - | 1070 |
| - | 1020 |
| - |
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| Low |
| 1150 |
| - | 1130 |
| - | 1110 |
| - | 1075 |
| - | 1040 |
| - | 1000 |
| - | 950 |
| - | 890 |
| - |
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| High* |
| 2085 |
| 48 | 2035 |
| 49 | 1965 |
| 51 | 1910 |
| 52 | 1840 |
| 54 | 1780 |
| 56 | 1715 |
| 58 | 1630 |
| 61 |
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| 100,000 | 3/4 | 1925 |
| 52 | 1885 |
| 53 | 1835 |
| 55 | 1780 |
| 56 | 1730 |
| 58 | 1675 |
| 60 | 1615 |
| 62 | 1540 |
| 65 |
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| 1720 |
| 58 | 1670 |
| 60 | 1630 |
| 61 | 1610 |
| 63 | 1570 |
| 64 | 1510 |
| 66 | 1465 |
| 68 | 1415 |
| 72 |
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| Low |
| 1500 |
| 66 | 1495 |
| 69 | 1460 |
| 66 | 1430 |
| 70 | 1400 |
| 72 | 1365 |
| 73 | 1315 |
| - | 1265 |
| - |
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( ) Can be C or N
*Factory Set Cooling Speed ** Factory Set Heating Speed
-Not Recommended
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.
7