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| PERFORMANCE DATA — 549B, 549C (cont) | ||||||||||||||||||||||
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| COOLING CAPACITIES (cont) |
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549B072 (6 Tons) |
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Temp (F) |
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| Indoor Entering Air — Cfm/BF |
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Outdoor |
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| 1800/0.06 |
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| 2100/0.066 |
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| 2400/0.071 |
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| 3000/0.088 |
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Entering Air |
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| Indoor Entering Air — Ewb (F) |
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(Edb) |
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| 72 |
| 67 |
| 62 | 57 |
| 72 |
| 67 | 62 |
| 57 |
| 72 | 67 | 62 |
| 57 |
| 72 |
| 67 |
| 62 |
| 57 |
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75 |
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| TC |
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| 83.2 |
| 77.6 |
| 71.6 | 67.9 |
| 84.7 |
| 79.8 | 73.6 |
| 71.5 | 85.9 | 81.0 | 75.0 |
| 74.3 |
| 88.4 |
| 82.9 |
| 78.4 |
| 78.3 |
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| SHC |
| 39.7 |
| 50.4 |
| 60.6 | 66.6 |
| 41.6 |
| 54.3 | 65.9 |
| 70.1 | 43.4 | 57.6 | 70.6 |
| 72.8 |
| 47.2 |
| 63.9 |
| 76.9 |
| 76.8 |
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| kW |
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| 4.90 |
| 4.78 |
| 4.69 | 4.63 |
| 4.94 |
| 4.84 | 4.71 |
| 4.69 | 4.97 | 4.86 | 4.74 |
| 4.73 |
| 5.04 |
| 4.91 |
| 4.81 |
| 4.81 |
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85 |
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| TC |
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| 81.5 |
| 75.5 |
| 69.0 | 64.8 |
| 83.2 |
| 77.3 | 71.1 |
| 69.4 | 84.5 | 78.5 | 72.7 |
| 72.2 |
| 86.2 |
| 80.8 |
| 76.5 |
| 76.5 |
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| SHC |
| 39.2 |
| 49.8 |
| 59.6 | 63.6 |
| 41.4 |
| 53.5 | 65.0 |
| 68.0 | 43.3 | 56.9 | 69.7 |
| 70.8 |
| 47.1 |
| 64.1 |
| 75.0 |
| 75.0 |
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| kW |
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| 5.45 |
| 5.34 |
| 5.23 | 5.16 |
| 5.49 |
| 5.36 | 5.27 |
| 5.23 | 5.52 | 5.38 | 5.29 |
| 5.27 |
| 5.57 |
| 5.45 |
| 5.36 |
| 5.36 |
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95 |
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| TC |
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| 78.8 |
| 72.5 |
| 64.1 | 61.8 |
| 80.9 |
| 74.5 | 67.0 |
| 66.1 | 82.0 | 76.0 | 69.9 |
| 69.9 |
| 83.7 |
| 78.1 |
| 74.2 |
| 74.1 |
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| SHC |
| 38.4 |
| 48.6 |
| 57.4 | 60.6 |
| 40.8 |
| 52.6 | 63.2 |
| 64.8 | 42.8 | 56.4 | 68.3 |
| 68.5 |
| 46.8 |
| 63.7 |
| 72.7 |
| 72.7 |
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| kW |
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| 6.03 |
| 5.91 |
| 5.79 | 5.73 |
| 6.09 |
| 5.96 | 5.84 |
| 5.82 | 6.11 | 6.00 | 5.89 |
| 5.89 |
| 6.16 |
| 6.05 |
| 5.96 |
| 5.96 |
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105 |
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| TC |
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| 76.2 |
| 69.5 |
| 58.6 | 57.8 |
| 77.9 |
| 71.3 | 63.4 |
| 63.1 | 79.3 | 72.7 | 67.2 |
| 67.2 |
| 81.1 |
| 74.5 |
| 71.3 |
| 71.2 |
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| SHC |
| 37.6 |
| 47.4 |
| 55.0 | 56.6 |
| 39.9 |
| 51.4 | 61.4 |
| 61.9 | 42.2 | 55.3 | 65.9 |
| 65.9 |
| 46.5 |
| 62.5 |
| 69.9 |
| 69.9 |
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| kW |
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| 6.69 |
| 6.56 |
| 6.40 | 6.38 |
| 6.73 |
| 6.61 | 6.45 |
| 6.44 | 6.77 | 6.64 | 6.51 |
| 6.51 |
| 6.82 |
| 6.67 |
| 6.57 |
| 6.57 |
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115 |
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| TC |
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| 72.5 |
| 65.1 |
| 54.8 | 54.7 |
| 74.3 |
| 67.8 | 58.6 |
| 58.6 | 75.6 | 69.1 | 63.2 |
| 63.2 |
| 77.3 |
| 70.9 |
| 68.4 |
| 68.4 |
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| SHC |
| 36.3 |
| 45.8 |
| 53.2 | 53.6 |
| 38.7 |
| 50.2 | 57.4 |
| 57.5 | 41.1 | 54.0 | 62.0 |
| 62.0 |
| 45.5 |
| 61.3 |
| 67.1 |
| 67.1 |
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| kW |
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| 7.37 |
| 7.24 |
| 7.08 | 7.07 |
| 7.43 |
| 7.30 | 7.16 |
| 7.16 | 7.48 | 7.34 | 7.21 |
| 7.21 |
| 7.52 |
| 7.38 |
| 7.32 |
| 7.32 |
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549B090 (71/2 Tons) |
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| Temp (F) |
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| Indoor Entering Air — Cfm/BF |
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| Outdoor |
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| 2250/0.12 |
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| 3000/0.15 |
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| 3750/0.18 |
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| Entering Air |
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| Indoor Entering Air — Ewb (F) |
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| (Edb) |
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| 72 | 67 |
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| 62 |
| 72 |
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| 67 |
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| 72 |
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| 67 |
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75 |
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| TC |
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| 97.6 | 92.5 |
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| 84.3 |
| 100.8 |
| 95.6 |
| 89.9 |
| 101.6 |
| 97.8 |
| 91.7 |
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| SHC |
| 47.7 | 61.0 |
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| 72.7 |
| 51.5 |
| 67.3 |
| 83.8 |
| 55.0 |
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| 74.4 |
| 89.7 |
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| kW |
| 5.80 | 5.76 |
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| 5.73 |
| 5.86 |
| 5.78 |
| 5.78 |
| 5.86 |
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| 5.82 |
| 5.73 |
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85 |
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| TC |
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| 97.2 | 89.9 |
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| 79.8 |
| 100.0 |
| 94.1 |
| 86.7 |
| 102.4 |
| 96.0 |
| 89.9 |
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| SHC |
| 48.1 | 60.2 |
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| 70.5 |
| 51.7 |
| 68.1 |
| 82.4 |
| 55.8 |
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| 74.1 |
| 89.3 |
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| kW |
| 6.61 | 6.50 |
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| 6.43 |
| 6.65 |
| 6.56 |
| 6.62 |
| 6.69 |
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| 6.58 |
| 6.50 |
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95 |
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| TC |
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| 94.4 | 86.9 |
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| 75.0 |
| 98.2 |
| 91.3 |
| 81.8 |
| 99.6 |
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| 93.7 |
| 87.3 |
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| SHC |
| 47.3 | 59.2 |
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| 68.1 |
| 51.7 |
| 67.5 |
| 79.8 |
| 55.0 |
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| 74.8 |
| 87.3 |
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| kW |
| 7.43 | 7.37 |
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| 7.19 |
| 7.50 |
| 7.41 |
| 7.30 |
| 7.50 |
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| 7.43 |
| 7.35 |
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105 |
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| TC |
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| 91.7 | 82.2 |
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| 70.7 |
| 94.8 |
| 87.3 |
| 76.6 |
| 97.0 |
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| 90.1 |
| 83.4 |
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| SHC |
| 46.3 | 57.4 |
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| 65.9 |
| 50.9 |
| 66.3 |
| 76.4 |
| 54.8 |
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| 74.1 |
| 83.4 |
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| kW |
| 8.37 | 8.22 |
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| 8.04 |
| 8.39 |
| 8.33 |
| 8.15 |
| 8.44 |
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| 8.35 |
| 8.26 |
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115 |
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| TC |
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| 87.7 | 77.4 |
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| 66.9 |
| 91.7 |
| 81.6 |
| 72.5 |
| 93.9 |
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| 85.3 |
| 78.8 |
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| SHC |
| 44.9 | 55.4 |
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| 64.0 |
| 50.3 |
| 64.2 |
| 72.5 |
| 55.0 |
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| 72.5 |
| 78.6 |
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| kW |
| 9.33 | 9.16 |
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| 8.98 |
| 9.44 |
| 9.27 |
| 9.11 |
| 9.48 |
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| 9.33 |
| 9.22 |
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125 |
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| TC |
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| 83.6 | 73.3 |
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| 66.7 |
| 87.1 |
| 76.0 |
| 69.1 |
| 89.5 |
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| 79.0 |
| 74.4 |
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| SHC |
| 43.6 | 53.9 |
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| 63.8 |
| 48.7 |
| 62.0 |
| 69.1 |
| 53.7 |
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| 70.1 |
| 74.4 |
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| kW |
| 10.38 | 10.16 |
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| 9.94 |
| 10.49 |
| 10.27 |
| 10.14 |
| 10.53 |
| 10.36 |
| 10.25 |
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549B102 (81/2 Tons) |
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| Temp (F) |
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| Indoor Entering Air — Cfm/BF |
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| Outdoor |
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| 2550/0.03 |
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| 3400/0.04 |
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| 4250/0.05 |
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| Entering Air |
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| Indoor Entering Air — Ewb (F) |
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| (Edb) |
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| 72 | 67 |
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| 62 |
| 72 |
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| 67 |
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| 72 |
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| TC |
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| 116.4 | 105.6 |
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| 94.8 |
| 118.9 |
| 110.4 |
| 99.4 |
| 120.4 |
| 112.9 |
| 104.3 |
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| SHC |
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| 55.7 | 69.2 |
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| 82.0 |
| 58.6 |
| 79.7 |
| 95.8 |
| 61.6 |
| 89.2 |
| 104.2 |
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| kW |
| 6.01 | 5.89 |
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| 5.8 |
| 6.04 |
| 5.97 |
| 5.87 |
| 6.07 |
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| 6.01 |
| 5.93 |
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| TC |
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| 117.6 | 102.1 |
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| 91.1 |
| 121.0 |
| 106.7 |
| 95.6 |
| 117.5 |
| 109.3 |
| 101.3 |
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| SHC |
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| 58.4 | 67.9 |
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| 80.4 |
| 64.1 |
| 78.6 |
| 93.9 |
| 61.0 |
| 88.4 |
| 101.2 |
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| kW |
| 6.47 | 6.72 |
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| 6.61 |
| 6.52 |
| 6.80 |
| 6.69 |
| 6.91 |
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| 6.85 |
| 6.77 |
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95 |
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| TC |
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| 113.7 | 98.0 |
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| 86.1 |
| 117.4 |
| 102.3 |
| 91.3 |
| 113.4 |
| 104.7 |
| 97.9 |
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| SHC |
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| 57.4 | 66.5 |
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| 78.2 |
| 63.5 |
| 77.2 |
| 91.1 |
| 59.9 |
| 87.2 |
| 97.8 |
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| kW |
| 7.34 | 7.63 |
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| 7.49 |
| 7.40 |
| 7.72 |
| 7.60 |
| 7.82 |
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| 7.77 |
| 7.69 |
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105 |
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| TC |
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| 109.8 | 93.0 |
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| 78.7 |
| 113.2 |
| 97.3 |
| 85.9 |
| 108.9 |
| 99.9 |
| 93.7 |
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| SHC |
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| 56.2 | 64.6 |
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| 75.0 |
| 62.4 |
| 75.5 |
| 85.9 |
| 58.7 |
| 85.5 |
| 93.6 |
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| kW |
| 8.28 | 8.59 |
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| 8.42 |
| 8.36 |
| 8.71 |
| 8.57 |
| 8.81 |
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| 8.74 |
| 8.68 |
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115 |
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| TC |
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| 100.2 | 86.4 |
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| 72.7 |
| 104.5 |
| 90.0 |
| 80.8 |
| 106.0 |
| 93.2 |
| 88.0 |
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| SHC |
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| 50.4 | 62.1 |
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| 71.9 |
| 57.2 |
| 73.0 |
| 80.8 |
| 63.4 |
| 83.2 |
| 88.0 |
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| kW |
| 9.79 | 9.60 |
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| 9.40 |
| 9.91 |
| 9.71 |
| 9.59 |
| 9.95 |
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| 9.79 |
| 9.71 |
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125 |
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| TC |
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| 94.0 | 76.6 |
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| 63.1 |
| 98.8 |
| 80.1 |
| 68.1 |
| 101.0 |
| 84.4 |
| 75.1 |
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| SHC |
| 48.3 | 58.5 |
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| 63.1 |
| 55.4 |
| 69.2 |
| 68.1 |
| 61.9 |
| 79.8 |
| 75.1 |
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| kW |
| 10.91 | 10.65 |
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| 10.45 |
| 11.03 |
| 10.78 |
| 10.61 |
| 11.1 |
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| 10.86 |
| 10.73 |
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Standard Ratings
LEGEND
BF — Bypass Factor
Edb — Entering
Ewb — Entering
kW — Compressor Motor Power Input
SHC — Sensible Heat Capacity (1000 Btuh)
Gross
TC — Total Capacity (1000 Btuh) Gross
NOTES:
1.Direct interpolation is permissible. Do not extrapolate.
2.The following formulas may be used:
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| sensible capacity |
tldb | = | tedb | – |
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| 1.10 x cfm | ||||
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tlwb | = | ||||
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| corresponding to enthalpy | |||
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| of air leaving evaporator | |||
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| coil (hlwb) |
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| total capacity |
hlwb | = | hewb | – |
| (Btuh) |
| 4.5 x cfm | ||||
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Where: hewb = Enthalpy of air entering evaporator coil
3.The SHC is based on 80 F edb temperature of air entering evaporator coil.
Below 80 F edb, subtract (corr factor x cfm) from SHC.
Above 80 F edb, add (corr factor x cfm) to SHC.
Correction Factor = 1.10 x (1 – BF) x (edb – 80).
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| ENTERING AIR |
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BYPASS | 79 | 78 | 77 | 76 | 75 | under |
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FACTOR |
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| 75 |
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(BF) | 81 | 82 | 83 | 84 | 85 | over |
| 549B, |
| 85 |
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| Correction Factor |
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.05 | 1.04 | 2.07 | 3.11 | 4.14 | 5.18 | Use |
| 549C |
.10 | .98 | 1.96 | 2.94 | 3.92 | 4.90 |
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formula |
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.20 | .87 | 1.74 | 2.62 | 3.49 | 4.36 | shown |
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| below. |
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.30 | .76 | 1.53 | 2.29 | 3.05 | 3.82 |
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Interpolation is permissible.
Correction Factor = 1.10 x (1 – BF) x (edb – 80).
83