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Level 01f
Water specifications
The following tables provide the requirements for the chilled water at the server connection.
Table 17. Required building chilled water conditions - (6
Chilled water per Water
Number
Max kw
Conditioning Unit
of nodes
to water
(Water-cooled)
Flow (LPM)
1
7
Pressure Drop (Bar)
Outlet temp
Flow (LPM)
2
10
Pressure Drop (Bar)
Outlet temp
Flow (LPM)
3
14
Pressure Drop (Bar)
Outlet temp
Flow (LPM)
4
18
Pressure Drop (Bar)
Outlet temp
Notes:
1. Units are liters/minute, bars, and
2. Temperature of water out of WCU that cools the server is dependent on measured dew point as well as building
water temperature. MCM performance is unaffected as long as dew point does not exceed 17
water does not exceed 20
in more humid environments or in cases with warm building chilled water. If building chilled water exceeds
0
20
C or room dew point exceeds 17
may lower processor frequency.
54
zEC12 IMPP
0.34
0
C
0.34
0
C
12.5
0.34
0
C
0.34
0
C
0
C. These conditions must be available to each of the water conditioning units.
0
C. However, the amount of heat removed by rear of frame heat exchangers is reduced
0
C, the water to server temperature will continue to rise and at some point
0
0
C - 13
C)
Building chilled water in
0
0
0
6
7
8
9
6.0
6.3
6.6
7.0
0.34
0.34
0.34
23
23
23
23
8.5
9.5
10
11
0.34
0.34
0.34
23
22
22
22
13.5
15
16.5
0.34
0.34
0.34
22
22
21
21
17
18
20
22
0.34
0.34
0.34
21
21
21
21
0
C
0
0
0
0
10
11
12
8.0
9.0
10.0
0.34
0.34
0.34
23
22
22
12
13.5
15
0.34
0.34
0.34
22
22
22
18
20
22
0.34
0.34
0.34
21
21
21
24
27
30
0.34
0.35
0.37
21
21
21
0
C and building
0
13
11.5
0.34
22
17
0.34
21
25
0.34
21
35
0.50
20
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