43
Table 3A — Unit Operating Range*
*Maximum ambient temperature and percent of unit capacity will vary based on
unit load and return water temperature. All models are qualified for use at
125 F (46 C). Some models may require the high ambient fan option. Contact
your local Carrier representative to obtain performance data using the Carrier
electronic catalog.
†For applications requiring cooler leaving water temperature operation at less
than 40 F (4.4 C), the units require the use of antifreeze and application may
require the special order brine option. Contact your local Carrier representative
for more information.
**For applications requiring cooler entering water temperature operation at less
than 45 F (7.2 C), contact your local Carrier representative for unit selection us-
ing the Carrier electronic catalog.
††Requires optional or accessory low ambient kit for operation below 15 F (–9 C).
All other models require the low ambient control for operation below 0° F
(– 17.8 C)
NOTES:
1. The 30GXN,R units will start with loop temperatures up to 95 F (35 C).
2. Nominal flow rates required at ARI conditions 44 F (7 C) leaving fluid tempera-
ture, 54 F (12 C) entering water temperature, 95 F (35 C) ambient. Fouling fac-
tor 0.00010 ft
2
-hr-F/Btu (0.000018 m
2
-K/kW).
3. To obtain proper temperature control, cooler loop fluid volume must be at least
3 gal/ton (3.23 L/kW) of chiller nominal capacity for air conditioning and at least
6 gal/ton (6.5 L/kW) for process applications or systems that must operate in
low ambient temperatures (below 32 F [0° C]).
4. Where winds of 5 mph (2.2 m/s) or greater are anticipated at outdoor ambient
temperatures below 32 F (0° C), wind baffles are required.
ITEM MAX MIN NOMINAL
Cooler Leaving Fluid Temperature† 60 F (15 C) 40 F (4.4 C) —
Cooler Entering Fluid Temperature** 70 F (21.1 C) 45 F (7.2 C) —
Cooler Flow Rates 30GXN,R Cooler
Number of
Passes
Max Cooler Temp
Difference
Reference
Min Flow Rate†
Nominal
Flow Rate
FCGpmL/sGpmL/s
080, 083
minus 1 pass 2 13 7.4 136 8.6
182 11.5std 3 20 11.1 91 5.7
plus 1 pass 4 27 14.8 68 4.3
090, 093
minus 1 pass 2 13 7.4 149 9.4
199 12.6std 3 20 11.1 100 6.3
plus 1 pass 4 27 14.8 75 4.7
106, 108
minus 1 pass 2 13 7.4 176 11.1
234 14.8std 3 20 11.1 117 7.4
plus 1 pass 4 27 14.8 88 5.5
114
minus 1 pass 2 13 7.4 191 12.0
254 16.1std 3 20 11.1 127 8.0
plus 1 pass 4 27 14.8 95 6.0
118
minus 1 pass 1 10 5.6 254 16.1
254 16.1std 2 20 11.1 127 8.0
plus 1 pass 3 30 16.7 85 5.4
125
minus 1 pass 2 13 7.4 209 13.2
278 17.6std 3 20 11.1 139 8.8
plus 1 pass 4 27 14.8 104 6.6
128
minus 1 pass 1 10 5.6 278 17.6
278 17.6std 2 20 11.1 139 8.8
plus 1 pass 3 30 16.7 93 5.9
135
minus 1 pass 2 13 7.4 229 14.4
305 19.2std 3 20 11.1 152 9.6
plus 1 pass 4 27 14.8 114 7.2
138
minus 1 pass 1 10 5.6 305 19.2
305 19.2std 2 20 11.1 152 9.6
plus 1 pass 3 30 16.7 102 6.4
150, 153
minus 1 pass 1 10 5.6 336 21.2
336 21.2std 2 20 11.1 168 10.6
plus 1 pass 3 30 16.7 112 7.1
160, 163
minus 1 pass 1 10 5.6 364 23.0
364 23.0std 2 20 11.1 182 11.5
plus 1 pass 3 30 16.7 121 7.7
174, 178††
minus 1 pass 1 10 5.6 401 25.3
401 25.3std 2 20 11.1 200 12.6
plus 1 pass 3 30 16.7 134 8.4
204, 208††
minus 1 pass 1 10 5.6 461 29.1
461 29.1std 2 20 11.1 230 14.5
plus 1 pass 3 30 16.7 154 9.7
225, 228††
minus 1 pass 1 10 5.6 502 31.6
502 31.6std 2 20 11.1 251 15.8
plus 1 pass 3 30 16.7 167 10.5
249, 253††
minus 1 pass 1 10 5.6 562 35.4
562 35.4std 2 20 11.1 281 17.7
plus 1 pass 3 30 16.7 187 11.8
264, 268††
minus 1 pass 1 10 5.6 588 37.1
588 37.1std 2 20 11.1 294 18.6
plus 1 pass 3 30 16.7 196 12.4
281††
minus 1 pass 1 10 5.6 641 40.5
641 40.5std 2 20 11.1 321 20.2
plus 1 pass 3 30 16.7 214 13.5
301††
minus 1 pass 1 10 5.6 689 43.4
689 43.4std 2 20 11.1 344 21.7
plus 1 pass 3 30 16.7 230 14.5
325††
minus 1 pass 1 10 5.6 741 46.8
741 46.8std 2 20 11.1 371 23.4
plus 1 pass 3 30 16.7 247 15.6
350††
minus 1 pass 1 10 5.6 801 50.5
801 50.5std 2 20 11.1 401 25.3
plus 1 pass 3 30 16.7 267 16.8
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