Carrier 30GTN Product Data page 29

Performance data (cont)
UNIT SIZE
LCWT
30GTN,GTR
(C)
GBN,GBR
Cap.
050 208.6
060 246.0
070 287.2
080 332.0
090 371.8
10
100 413.6
110 455.1
150,300A/B 692.2
175,350A/B 782.2
200,400A/B 855.2
050 227.5
060 268.4
070 313.6
080 360.1
090 405.9
13
100 454.3
110 498.6
150,300A/B 760.4
175,350A/B 858.5
200,400A/B 938.1
050 243.1
060 279.5
070 336.4
080 372.8
090 426.6
16
100 483.7
110 540.3
150,300A/B 832.0
175,350A/B 939.3
200,400A/B -
LEGEND
Cap. — Cooling Capacity kW of Refrigeration
Input kW — Compressor Power Input
LCWT — Leaving Chilled Water Temperature (C)
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 6° C. When greater accuracy is
desired, correct design LCWT, before entering rating tables, by
reference to the LCWT correction curve.
b. A fouling factor of 0.000018 in the cooler.
c. Refrigerant 22.
COOLING CAPACITIES – SI
CONDENSER ENTERING AIR TEMPERATURE (C)
30 35
Cooler
Input Input
Flow Cap.
kW kW
Rate
59.7 9.0 199.1 62.9
69.3 10.6 234.9 73.0
77.8 12.4 273.4 82.3
83.6 14.3 316.5 88.1
106.6 16.0 353.7 112.3
114.1 17.8 393.8 120.2
136.7 19.6 434.4 143.2
197.3 27.6 658.6 206.7
237.3 31.2 744.7 247.9
275.3 34.1 816.0 287.2
62.6 9.8 217.5 66.1
72.7 11.6 256.6 76.7
81.6 13.5 299.3 86.5
87.6 15.5 342.3 92.3
112.4 17.5 386.9 118.6
120.3 19.6 433.1 127.0
144.7 21.5 476.9 151.8
208.9 30.3 724.5 219.2
251.6 34.2 819.1 263.4
292.1 37.4 896.0 305.1
65.0 10.5 230.0 68.2
74.2 12.1 264.6 77.9
84.6 14.5 317.2 89.1
89.5 16.1 352.2 93.9
115.5 18.4 402.0 121.1
124.5 20.9 456.6 130.7
152.1 23.3 511.4 158.5
221.0 33.2 792.4 231.9
266.8 37.5 897.4 279.5
309.9 40.9 980.6 323.9
40
Cooler Cooler
Input
Flow Cap. Flow
kW
Rate Rate
8.6 189.5 65.9 8.2
10.1 223.7 76.4 9.6
11.8 259.8 86.6 11.2
13.6 300.8 92.3 13.0
15.2 335.5 117.7 14.4
17.0 373.9 126.0 16.1
18.7 414.0 149.3 17.8
26.2 625.3 215.4 24.9
29.7 707.3 257.9 28.2
32.5 776.0 298.3 30.9
9.4 207.3 69.4 8.9
11.1 244.9 80.6 10.6
12.9 284.8 91.1 12.3
14.8 324.6 96.7 14.0
16.7 367.7 124.4 15.9
18.7 412.1 133.4 17.8
20.6 455.1 158.5 19.6
28.9 688.5 228.8 27.5
32.7 779.8 274.4 31.1
35.7 853.5 317.1 34.0
9.9 216.9 71.1 9.4
11.4 249.9 81.3 10.8
13.7 298.3 93.3 12.9
15.2 331.8 97.9 14.3
17.3 377.6 126.2 16.3
19.7 429.8 136.4 18.5
22.1 482.9 164.4 20.8
31.6 751.8 241.9 30.0
35.8 855.4 291.5 34.1
39.1 935.5 336.9 37.3
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 (kW) and power input (kW) to compressor at its rated voltage.
b. Calculate corrected flow rate through the cooler:
= 0.239 x capacity in kW = L/s
temperature rise °C
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 3 C, 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.
29
45
Cooler
Input
Cap. Flow Cap.
kW
Rate
179.8 68.7 7.7 169.9
212.3 79.7 9.1 201.0
246.4 90.6 10.6 232.8
284.9 96.3 12.3 269.3
317.2 122.7 13.7 298.9
354.2 131.4 15.3 334.4
393.4 155.1 16.9 372.7
591.0 223.5 23.5 556.9
670.0 267.2 26.7 632.3
736.0 308.7 29.3 695.6
197.1 72.5 8.5 186.7
233.0 84.2 10.0 220.2
270.2 95.5 11.7 255.7
306.7 100.8 13.2 288.9
348.4 130.0 15.0 328.1
391.1 139.4 16.9 369.8
433.1 164.9 18.7 410.7
652.3 237.9 26.0 -
739.4 284.5 29.5 -
811.0 328.7 32.3 -
203.8 73.8 8.8 190.7
235.3 84.5 10.2 220.9
279.8 97.2 12.1 261.4
311.7 101.6 13.5 291.8
353.5 130.8 15.3 329.6
403.3 141.7 17.4 377.1
454.6 169.9 19.6 426.4
711.4 251.4 28.4 -
812.8 302.7 32.4 -
- - - -
50
Cooler
Input
Flow
kW
Rate
71.3 7.3
82.8 8.7
94.4 10.0
100.0 11.6
127.4 12.9
136.6 14.4
160.5 16.1
231.0 22.2
275.7 25.2
318.2 27.7
75.4 8.0
87.3 9.5
99.6 11.0
104.6 12.5
134.9 14.1
145.1 15.9
170.9 17.7
- -
- -
- -
76.2 8.2
87.3 9.5
100.8 11.3
105.0 12.6
135.0 14.2
146.5 16.3
174.9 18.4
- -
- -
- -