Thermo Scientific DLT - Page 12

8
Thermo Scientific Harris Ultra-Low Temperature Freezers Installation and Operation
Table 1. Backup System Flow Rates
Lbs/hr @ 75°F
Ambient Temperature
(Flow Rate)
Lbs/hr @ 75°F
Ambient Temperature
(Flow Rate)
Center Air Temperature -50°C-60°C-70°C Center Air Temperature -60°C-70°C-80°C
Liquid CO
2
Liquid LN
2
Chest Freezers Chest Freezers
3 ft
3
Empty 2.832.963.1
3 ft
3
Empty 2.7 3.1 3.5
1/2 Full 2.4 2.7 3.1 1/2 Full 2.2 2.6 2.9
Full 1.8 2.1 2.4 Full 1.7 1.9 2.2
7 ft
3
Empty 4.1 4.7 5.5
7 ft
3
Empty 3.9 4.5 4.1
1/2 Full 3.5 4.0 4.6 1/2 Full 3.3 3.8 4.3
Full 2.6 3.0 3.5 Full 2.5 2.8 3.2
10 ft
3
Empty 4.9 5.6 6.6
10 ft
3
Empty 4.7 5.4 6.1
1/2 Full 4.2 4.8 5.5 1/2 Full 4.0 4.5 5.1
Full 3.1 3.6 4.1 Full 3.0 3.4 3.8
14 ft
3
Empty 5.6 6.5 7.5
14 ft
3
Empty 5.4 6.2 7.0
1/2 Full 4.8 5.5 6.3 1/2 Full 4.5 5.2 5.9
Full 3.5 4.2 4.8 Full 3.4 3.9 4.4
17 ft
3
Empty 6.5 7.5 8.7
17 ft
3
Empty 6.2 7.1 8.1
1/2 Full 5.5 6.3 7.3 1/2 Full 5.3 6.0 6.8
Full 4.1 4.8 5.5 Full 3.9 4.4 5.1
20 ft
3
Empty 7.3 8.4 9.8
20 ft
3
Empty 7.0 8.0 9.1
1/2 Full 6.2 7.1 8.2 1/2 Full 5.9 6.7 7.6
Full 4.6 5.4 6.2 Full 4.4 5.0 5.7
Upright Freezers Upright Freezers
13 ft
3
Empty 7.4 8.5 9.7
13 ft
3
Empty 7.0 7.9 8.9
1/2 Full 6.5 7.4 8.3 1/2 Full 6.1 6.8 7.6
Full 5.1 5.9 6.7 Full 4.8 5.4 6.1
17 ft
3
Empty 8.3 9.5 10.9
17 ft
3
Empty 7.7 8.7 9.8
1/2 Full 7.3 8.3 9.3 1/2 Full 6.7 7.5 8.4
Full 5.8 6.6 7.5 Full 5.3 5.9 6.7
21 ft
3
Empty 8.9 10.2 11.7
21 ft
3
Empty 8.4 9.5 10.7
1/2 Full 7.8 8.9 10.0 1/2 Full 7.3 8.2 9.2
Full 6.2 7.1 8.1 Full 5.8 6.5 7.3
25 ft
3
Empty 9.5 10.9 12.5
25 ft
3
Empty 9.1 10.3 11.6
1/2 Full 8.3 9.5 10.7 1/2 Full 7.9 8.9 10.0
Full 6.6 7.6 8.7 Full 6.3 7.1 7.9