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
2.83
2.96
3.1
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
