Carrier 50YX - Manual (Page 7)

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COOLING CAPACITIES
50YX018 (IV 2 Tons) 50YX030 (2У2 Tons)
Evap Air - Cfm/BF Evap Air - Cfm/BF
Temp (F) 525/0.07 675/0.09 750/0.10 Temp (F) 1000/0.06 1125/0.07 1250/0.08
Air Ent
Evap Air - Ewb (F) Cond Evap Air - Ewb (F)
72 67 63* 62 72 67 63* 62 72 67 63* 62 72 67 63* 62 72 67 63* 62 72 67 63* 62
TC 20 4 18 б] 174 17 1 21.1 193 180 178 21.3 195 18.2 182 TC 34 8 31 9 29 8 29 4 35 1 32 2 30 1 29 9 35 6 32 7 30.5 30.8
85 SHC 10.2 12.9 12.6 15.6 11.2 14.5 14.1 17.6 11.6 15.3 14.8 18.2 85 SHC 18.1 23.5 22.8 28.5 18.9 24.8 24.1 29.9 19.7 26.3 25.3 30.8
kW 1.60 1.58 1.58 1.57 1.64 1.63 1.62 1.62 1.66 1.65 1.64 1.64 kW 2.66 2.63 2.62 2.61 2.70 2.68 2.66 2.66 2.75 2.73 2.71 2.72
TC 196 179 167 164 20.2 185 173 17.2 20 3 187 174 176 TC 33.5 30 7 28.6 28.3 33 8 31 0 28.9 29.0 34.3 31 5 29.3 29 8
95 SHC 9.94 126 12.3 15.3 10.9 142 13.8 17.2 11 3 15.0 14.5 176 95 SHC 17.6 23.0 22.3 27.9 18.4 24 4 23.6 29 0 19.3 25.8 24 8 29 8
kW 1.76 1.74 1.73 1.73 1.80 1.78 1.77 1.77 1.82 1.80 1.79 1.79 kW 2.89 2.87 2.85 2.84 2.94 2.91 2.90 2.90 3.00 2.97 2.94 2.95
TC 187 17.2 16.0 15.7 19.3 177 165 166 19 5 17.9 166 170 TC 32.1 29.4 27.4 27 2 32.7 29.7 27.7 28 0 32 9 30 2 28 0 28 7
105 SHC 9 62 12.3 120 14.9 106 13.9 13.5 166 11 0 147 14.2 170 105 SHC 17 1 22.5 21.8 27 2 18.0 23.9 23 1 28.0 188 25.3 24.3 28.7
kW 1.92 1.91 1.89 1.89 1.97 1.95 1.94 1.94 1.99 1.97 1.96 1.96 kW 3.16 3.13 3 11 3.10 3.22 3 18 3.16 3.16 3.26 3.23 3.21 3.21
TC 17.9 164 152 150 184 169 156 159 185 170 158 163 TC 30 7 28 2 26 2 26 3 31.2 28.4 26.5 27.0 31 4 28.8 26 8 27.7
115 SHC 9 31 120 11 6 145 10.3 136 13 1 159 107 144 138 163 115 SHC 16.7 22.0 21.3 26.3 175 23.4 22.5 27.0 18.3 24.8 23 8 27.7
kW 2 11 2.09 2 07 2 07 2 16 2 14 2 12 2.13 2 17 2.16 2 14 2.14 kW 3 45 3.42 3 40 3 40 3 51 3.47 3 44 3 45 3 56 3 53 3 50 3 51
50Y X024 (2 Tons)
.....-------- — — — - — — — —
50YX036 (3 Tons)
- -- —
Evap Air - Cfm/BF Evap Air - Cfm/BF
Temp (F) 800/0.05 900/0.05 1000/0.06 Temp (F) 1200/0.13 1350/0.14 1500/0.16
Air Ent
Evap Air - Ewb (F) Cond Evap Air - Ewb (F)
72 67 63* 62 72 67 63* 62 72 67 63* 62 72 67 63* 62 72 67 63* 62 72 67 63* 62
TC 27 9 25 6 23 8 23 5 28 2 25.8 24.1 24 0 28 5 26 0 24.3 24.6 TC 40 3 36 8 34 3 33 8 40 6 37.3 34.8 34 5 41 0 37.6 35.1 35.1
85 SHC 146 189 183 23 0 152 20 1 194 24.0 15.9 21.2 20.4 24.6 85 SHC 20.7 26 7 25 9 32.3 21.5 28 2 27 3 34 0 22.3 29.6 28.7 35 1
kW 2.12 2.12 2.12 2.12 2.16 2.16 2.16 2.16 2.20 2.19 2.19 2.19 kW 3.17 3.13 3.10 3.09 3.21 3.19 3.16 3.15 3.27 3.24 3.22 3.21
TC 26 8 24 5 22 7 22 6 27 1 24.8 23 1 23 3 27 3 25 0 23 3 23.8 TC 38.6 35.4 33 0 32.6 39.1 35 8 33.4 33 2 39 5 36 1 33.7 34 0
95 SHC 142 185 179 22 5 14.8 19.7 190 23 3 15.5 20.8 20.0 23.8 95 SHC 20.1 26.1 25.3 31.6 21.0 27.6 26.7 33.1 21.8 29.0 28.1 34.0
kW 2.34 2.33 2.33 2.33 2.37 2.37 2.37 2.37 2.41 2.41 2.40 2.40 kW 3 47 3.43 3.40 3.40 3.53 3.48 3.46 3.46 3.58 3.54 3.52 3.52
TC 25.7 23 5 21.7 21.8 26 0 23 8 22.1 22.5 26 1 23.9 22 3 23 0 TC 37.0 33.9 31.6 31 3 37.4 34.3 32.0 32 0 37 7 34 5 32 2 32.8
105 SHC 13.8 18.1 17.5 21.8 145 19.3 18.6 22.5 15.1 20.4 19.6 23.0 105 SHC 19.5 25.6 24.7 30.8 20.4 27.0 26.1 32.0 21.2 28.4 27.4 32.8
kW 2.58 2.57 2.56 2.57 2.61 2.61 2.61 2.61 2.65 2.64 2.64 2.64 kW 3.80 3.77 3.74 3.73 3.85 3 82 3.80 3.80 3.91 3.87 3.85 3.86
TC 24 5 22 4 20 8 20 9 24 6 22 6 21 1 21 5 24 8 22.9 21 3 22 1 TC 35.4 32 4 30.1 29 9 35.7 32.7 30 4 30 7 35 8 32 9 30 6 31.4
115 SHC 13.4 177 17.1 20.9 14.0 18.8 18.2 21 5 147 199 192 22 1 115 SHC 19.0 25 0 24.1 29 9 19.8 26 4 25 4 30.7 20.6 27.8 26 7 31.4
kW 2 84 2.83 2 83 2 83 2 87 2.87 2 87 2 86 2.91 2 91 2.91 2.91 kW 4.18 4 14 4.10 4 10 4.24 4.19 4 15 4 17 4 27 4 24 4 20 4 22
LEGEND
BF — Bypass Factor
Edb — Entering Dry-Bulb
Ewb — Entering Wet-Bulb
kW — Total Unit Power Input
Ldb — Leaving Dry-Bulb
Lwb — Leaving Wet-Bulb
SHC — Sensible Heat Capacity (1000 Btuh) Net
TC — Total Capacity (1000 Btuh) Net
*At 75 F entering dry bulb (Tennessee Valley Authority [TVA] rating con­
ditions); all others at 80 F entering dry bulb.
NOTES:
1 Direct interpolation is permissible. Do not extrapolate
2 The following formulas may be used:
sensible capacity (Btuh)
= *edb 1 loxcfm
t|wb = Wet-bulb temperature corresponding to enthalpy of air leaving
evaporator coil (h|y^,b)
total capacity (Btuh)
^Iwb “ ^wb
4 5 X cfm
Where: hg^^jj = Enthalpy of air entering evaporator coil
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)