27
Performance data (cont)
COOLING CAPACITIES - ENGLISH
CONDENSER ENTERING AIR TEMPERATURE (F)
85 95 105 115 125
UNIT SIZE
30GTN,GTR
GBN,GBR
LCWT
(F)
Cap.
Input
kW
Cooler
Flow
Rate
Cap.
Input
kW
Cooler
Flow
Rate
Cap.
Input
kW
Cooler
Flow
Rate
Cap.
Input
kW
Cooler
Flow
Rate
Cap.
Input
kW
Cooler
Flow
Rate
050 59.6 59.3 143.1 56.6 62.9 135.9 53.6 66.2 128.6 50.5 69.3 121.3 47.4 72.1 113.8
060 70.3 68.8 168.8 66.8 73.0 160.3 63.2 76.8 151.8 59.7 80.4 143.2 56.1 83.8 134.7
070 82.1 77.3 197.1 77.7 82.3 186.7 73.4 87.0 176.4 69.2 91.5 166.2 64.9 95.6 155.8
080 94.9 83.1 227.8 90.0 88.1 216.1 85.0 92.8 204.2 80.0 97.1 192.1 75.1 101.2 180.3
090 106.3 106.0 255.2 100.6 112.3 241.5 94.8 118.3 227.7 89.1 123.8 213.8 83.3 128.8 199.9
100 118.2 113.4 283.9 112.0 120.2 268.9 105.7 126.6 253.8 99.5 132.6 238.8 93.2 138.2 223.8
110 130.0 136.0 312.2 123.5 143.2 296.6 117.1 150.0 281.1 110.6 156.3 265.5 104.0 162.2 249.7
150,300A/B 197.6 195.9 473.8 187.0 206.5 448.4 176.5 216.1 423.1 165.6 225.0 397.2 154.9 233.0 371.3
175,350A/B 223.3 235.9 535.3 211.4 247.7 507.0 199.6 258.7 478.7 187.8 268.8 450.3 - - -
200,400A/B
50
244.1 273.6 585.4 231.7 287.0 555.5 219.1 299.2 525.3 206.4 310.6 494.9 - - -
050 69.5 64.6 167.2 65.4 68.2 157.2 61.2 71.4 147.3 57.1 74.4 137.3 53.0 77.0 127.4
060 79.9 73.7 192.2 75.2 77.9 180.9 70.6 81.7 169.8 66.0 85.1 158.7 61.4 88.2 147.7
070 95.1 83.6 228.9 90.2 89.1 216.9 84.2 93.8 202.5 78.4 98.0 188.5 72.6 101.9 174.6
080 106.6 89.0 256.4 100.1 93.9 240.8 93.7 98.4 225.3 87.3 102.4 210.1 81.0 106.1 195.0
090 122.0 114.8 293.5 114.2 121.1 274.8 106.6 126.7 256.3 98.9 131.8 238.0 - - -
100 138.3 123.8 332.7 129.7 130.7 312.1 121.3 137.0 291.8 113.0 142.8 271.7 104.7 148.0 251.9
110 153.6 150.9 369.5 145.6 158.7 350.3 136.4 165.1 328.0 127.4 171.0 306.5 118.6 176.4 285.2
150,300A/B 234.4 217.7 563.1 222.5 230.0 534.5 210.4 241.5 505.5 198.1 252.1 475.9 - - -
175,350A/B 264.6 262.8 635.5 251.5 276.8 604.1 238.3 289.9 572.4 - - - - - -
200,400A/B
60
288.8 305.2 693.7 274.9 320.6 660.2 260.7 335.1 626.3 - - - - - -
LEGEND
Cap. — Cooling Capacity Tons of Refrigeration
Input kW — Compressor Power Input
LCWT — Leaving Chilled Water Temperature (F)
NOTES:
1. Ratings apply to units with electronic or thermostatic expansion valves.
2. All ratings are in accordance with ARI (Air Conditioning and Refrigeration
Institute, U.S.A.) Standard 590-92, based on:
a. A cooler water temperature rise of 10° F. When greater accuracy is
desired, correct design LCWT, before entering rating tables, by
reference to the LCWT correction curve.
b. A fouling factor of 0.00025 in the cooler.
c. Refrigerant 22.
3. When a corrected LCWT is used, cooler pressure drop must also be corrected
for new LCWT:
a. Enter rating table for corrected LCWT. By interpolation, determine corrected
capacity (tons) and power input (kW) to compressor at its rated voltage.
b. Calculate corrected flow rate through the cooler:
= 24 x capacity in tons = U.S. gpm
temperature rise °F
c. On Cooler Pressure Drop chart (pages 32 and 33),enter cooler pressure
drop curve at corrected flow rate and read pressure drop.
4. When chilled water temperature rise is less than 5 F, high flow rate will normally
be accompanied by an excessive pressure drop. In such cases, contact
your Carrier representative for special selection of a cooler with wider baffle
spacing.