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PERFORMANCE DATA — 542J (cont)
INTEGRATED HEATING CAPACITIES
LEGEND
NOTES:
1. Integrated heating capacity ratings shown are not adjusted for the effects of
the indoor-fan motor power and heat. A deduction has been made for defrost-
ing the outdoor coils at temperatures below 40 F.
2. Direct interpolation is permissible. Do not extrapolate.
3. When using auxiliary and/or supplementary heating, the maximum allowable
leaving-air temperature is 140 F.
4. For supplementary glycol coil:
542J150 (12
1
/
2
Tons)
CFM
Return
Air
Temp
F (db)
Temp Air Entering Outdoor Coil (F db at 75% RH)
–10 0 10 17 20 30 40 47 50 60
Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW
3750
55 40.4 7.81 53.0 8.35 65.6 8.89 74.5 9.27 78.5 9.47 91.9 10.10 120.0 11.00 140.0 11.50 147.0 11.80 168.0 12.60
70 37.7 8.19 49.8 8.85 61.9 9.51 70.3 9.97 74.1 10.20 86.8 11.00 114.0 11.90 133.0 12.50 139.0 12.90 161.0 13.90
80 35.4 8.41 47.1 9.15 58.8 9.89 67.0 10.40 70.8 10.70 83.4 11.50 109.0 12.50 128.0 13.20 134.0 13.60 156.0 14.70
4500
55 40.3 7.98 53.9 8.49 67.5 9.00 77.0 9.35 80.9 9.54 93.8 10.10 123.0 10.90 144.0 11.40 149.0 11.60 167.0 12.30
70 36.7 8.38 49.8 9.00 62.9 9.62 72.0 10.00 75.9 10.30 88.6 11.00 116.0 11.80 136.0 12.50 142.0 12.70 163.0 13.60
80 33.2 8.64 46.4 9.32 59.6 10.00 68.7 10.50 72.6 10.70 85.2 11.50 112.0 12.50 131.0 13.10 137.0 13.40 159.0 14.50
5000
55 41.0 8.11 54.7 8.60 68.4 9.09 78.0 9.43 81.9 9.60 95.0 10.20 124.0 10.90 144.0 11.40 149.0 11.60 165.0 12.10
70 44.7 8.45 55.2 9.07 65.7 9.69 73.1 10.10 76.9 10.30 89.7 11.00 118.0 11.90 138.0 12.50 143.0 12.70 163.0 13.50
80 33.6 8.76 47.0 9.43 60.4 10.10 69.8 10.60 73.6 10.80 86.3 11.60 113.0 12.50 132.0 13.10 139.0 13.40 160.0 14.40
5625
55 42.0 8.27 55.7 8.74 69.4 9.21 79.0 9.54 83.0 9.71 96.2 10.30 124.0 10.90 144.0 11.40 148.0 11.50 164.0 12.10
70 42.7 8.66 54.3 9.24 65.9 9.82 74.1 10.20 77.9 10.40 90.9 11.10 120.0 11.90 140.0 12.50 145.0 12.70 163.0 13.40
80 34.5 8.94 48.0 9.57 61.5 10.20 70.9 10.70 74.7 10.90 87.4 11.60 115.0 12.50 134.0 13.10 140.0 13.40 160.0 14.30
6250
55 44.0 8.43 57.3 8.89 70.6 9.35 79.9 9.67 83.9 9.83 97.3 10.40 124.0 11.00 143.0 11.40 147.0 11.50 160.0 12.00
70 45.7 8.79 56.8 9.37 67.9 9.95 75.6 10.40 79.4 10.50 91.9 11.20 120.0 12.00 140.0 12.50 145.0 12.70 161.0 13.30
80 35.2 9.04 48.8 9.72 62.4 10.40 71.9 10.80 75.7 11.00 88.4 11.70 117.0 12.60 136.0 13.20 142.0 13.40 159.0 14.20
542J180 (15 Tons)
CFM
Return
Air
Temp
F (db)
Temp Air Entering Outdoor Coil (F db at 75% RH)
–1001017203040475060
Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW
3750
55 46.4 9.80 60.8 10.60 75.6 11.34 85.8 11.84 91.4 12.10 110.0 12.96 150.2 14.00 178.2 14.72 189.4 15.08 228.0 16.32
70 39.6 10.04 54.4 10.96 69.8 11.86 80.4 12.48 85.8 12.78 103.4 13.82 141.6 15.02 168.4 15.84 179.0 16.26 214.0 17.64
80 35.0 10.20 50.2 11.20 65.8 12.20 76.8 12.90 81.8 13.24 99.2 14.38 136.0 15.70 161.8 16.60 172.0 17.04 206.0 18.52
4500
55 47.8 10.02 62.0 10.78 77.0 11.48 87.6 11.96 93.2 12.20 112.0 12.98 153.2 13.92 182.2 14.58 193.4 14.90 230.0 15.94
70 40.6 10.26 55.8 11.16 71.2 12.00 82.0 12.60 87.4 12.90 105.4 13.86 144.6 14.98 172.0 15.74 182.8 16.12 220.0 17.36
80 36.0 10.44 51.6 11.40 67.4 12.36 78.4 13.04 83.6 13.36 101.0 14.44 138.8 15.68 165.2 16.52 175.8 16.94 212.0 18.30
5000
55 48.6 10.26 63.0 10.98 78.4 11.64 89.2 12.10 94.8 12.32 113.6 13.06 155.2 13.94 184.4 14.56 195.8 14.86 234.0 15.80
70 41.8 10.50 56.8 11.36 72.6 12.18 83.6 12.76 89.0 13.04 107.2 13.96 147.0 15.00 174.8 15.74 185.8 16.08 222.0 17.24
80 37.2 10.66 52.8 11.62 68.6 12.54 79.8 13.20 85.0 13.50 103.0 14.56 141.4 15.72 168.2 16.52 179.0 16.90 216.0 18.18
5625
55 49.2 10.50 63.8 11.18 79.4 11.82 90.2 12.26 96.0 12.46 115.2 13.18 158.0 14.02 187.8 14.60 198.4 14.84 234.0 15.64
70 42.6 10.72 58.0 11.58 73.6 12.38 84.6 12.92 90.2 13.20 108.6 14.08 149.2 15.08 177.6 15.78 188.4 16.10 224.0 17.14
80 38.2 10.88 54.0 11.84 69.8 12.74 81.0 13.38 86.4 13.68 104.4 14.68 143.4 15.80 170.8 16.58 181.6 16.94 218.0 18.14
6250
55 50.0 10.72 64.6 11.40 80.2 12.00 91.0 12.42 97.0 12.64 116.6 13.30 159.8 14.14 190.0 14.70 200.0 14.92 234.0 15.58
70 43.4 10.96 58.8 11.80 74.6 12.58 85.6 13.12 91.2 13.36 110.0 14.22 151.0 15.20 179.6 15.88 190.2 16.16 226.0 17.12
80 39.0 11.12 54.8 12.06 70.8 12.94 82.0 13.56 87.6 13.86 105.6 14.84 145.0 15.92 172.6 16.66 183.6 17.00 220.0 18.16
Cap. — Capacity (1000 Btuh)
Edb — Entering Air Dry-Bulb Temperature (F)
Ldb — Leaving Air Dry-Bulb Temperature (F)
kW — Compressor and Outdoor-Fan Power Input
RH — Relative Humidity
Ldb F = Edb F +
Total heating cap. (Btuh)
1.10 x airflow cfm
Fluid flow Gpm =
fluid capacity (Btuh)
500 x fluid temperature drop (F)
542J