Carrier AQUASNAP 30RBM Series Installation, Operation And Maintenance Instructions page 62

12.2.10 - DX Free Cooling option (Options 118A and 118B)
The DX Free Cooling option is used to produce chilled water when the ambient air temperature is lower than the temperature
of the water to be cooled, without activating the compressors [the compressors can be used for a few seconds during a Free
Cooling cycle to transfer the refrigerant charge to the Free Cooling circuit – see Operation].
Only the unit fans and a low power pump that circulates the refrigerant in the Free Cooling circuit operate to generate cooling power.
This ensures particularly high efficiency during operation in Free Cooling mode.
Option 118A (Free Cooling on both circuits) is available for units from size 220.
Option 118B (Free Cooling on one circuit) is available across the entire range.
12.2.10.1 - Physical properties of units with the Free Cooling option
30RBM/30RBP option 118A (Free Cooling on 2 circuits)
30RBM - Operating weight
(1)
Standard unit + option 118A
Unit with option 15 + option 118A
Unit with option 15 + option 116S + 118A
30RBP - Operating weight
(1)
Standard unit + option 118A
Unit with option 15 + option 118A
Unit with option 15 + option 116S + 118A
30RBM/30RBP - Refrigerant
Circuit A
(1)
Circuit B
(1)
30RBM/30RBP option 118B (Free Cooling on 1 circuit)
30RBM - Operating weight
(1)
Standard unit + option 118B
Unit with option 15 + 118B
Unit with option 15 + option 116S + 118B
30RBP - Operating weight
(1)
Standard unit + option 118B
Unit with option 15 + 118B
Unit with option 15 + option 116S + 118B
30RBM/30RBP - Refrigerant
Circuit A
(1)
Circuit B
(1)
(1) Weights are guidelines only. Refer to the unit name plate.
62
160 180 200
kg - - -
kg - - -
kg - - -
kg - - -
kg - - -
kg - - -
kg - - -
tCO e - - -
2
kg - - -
tCO e - - -
2
1248 1286 1286
kg
1331 1368 1369
kg
1470 1508 1508
kg
1284 1322 1322
kg
1366 1405 1405
kg
1505 1544 1545
kg
kg 8,4 10,9 10,9
tCO e 17,5 22,8 22,8
2
kg 14,0 14,1 13,7
tCO e 29,1 29,4 28,6
2
220 260 300 330
1447 1468 1939 1975 2147
1555 1576 2065 2101 2290
1694 1730 2225 2305 2494
1483 1505 1975 2011 2183
1591 1613 2101 2137 2327
1730 1767 2261 2341 2530
R410A
13,9 14,6 16,7 17,6 24,8
29,0 30,5 34,9 36,7 51,8
14,0 14,6 25,0 24,7 25,4
29,2 30,5 52,2 51,6 53,0
1416 1457 1910 1946 2110
1524 1565 2036 2072 2253
1663 1719 2196 2276 2457
1452 1474 1946 1982 2146
1560 1582 2072 2108 2290
1699 1736 2232 2312 2493
R410A
12,6 13,1 14,7 15,4 20,3
26,3 27,4 30,7 32,2 42,4
14,0 14,6 25,0 24,7 25,4
29,2 30,5 52,2 51,6 53,0
360 400 430 470 520
2203 2619 2637 2833
2347 2781 2800 3013
2550 3024 3041 3293
2240 2677 2695 2899
2384 2839 2857 3079
2587 3081 3098 3359
24,3 27,5 25,5 31,6
50,7 57,4 53,2 65,9
25,4 29,5 30,3 31,8
53,0 61,6 63,3 66,3
2166 2581 2599 2793
2310 2743 2762 2973
2513 2986 3003 3253
2203 2639 2657 2859
2347 2801 2819 3039
2550 3043 3060 3319
21,1 23,5 23,5 26,8
44,1 49,1 49,1 55,9
25,4 29,5 30,3 31,8
53,0 61,6 63,3 66,3