1 calculating refrigerant charge—example, Table 10 calculating refrigerant charge—example, Table 11 worksheet to calculate refrigerant charge – Liebert Extreme Density Chiller XDC User Manual
Page 27: Calculating refrigerant charge—example, Table 9, Table 10, Table 11, Worksheet to calculate refrigerant charge, 1 - calculating refrigerant charge, Example
Piping and Filling with Refrigerant: R-134a and R-407c Circuits
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2.5.1 Calculating Refrigerant Charge—Example
Using Tables 6, 7, 8 and 9, calculate the refrigerant charge of the individual sections of your Liebert
XD system. Add the calculated charge amounts to determine the amount of R-134a refrigerant
required for one system combining a Liebert XDC with Liebert XD cooling modules (Liebert XD Cool-
Frame, Liebert XDH, Liebert XDO and Liebert XDV). The example below combines one Liebert XDC
with 20 Liebert XDV8 cooling modules.
Table 9
R-134a refrigerant charge for Liebert XD Flex Pipe connector lines to and from any
model Liebert XDO/Liebert XDH/Liebert XDV/Liebert XDCF
Refrigerant Charge,
lb. (kg)
Metal Liebert XD Flex Pipe Connector Length
Supply Line Diameter 1/2"
0.3 lb. (0.14)
4 ft. Liebert XD Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF supply
0.5 lb. (0.23)
6 ft. Liebert XD Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF supply
0.7 lb. (0.32)
8 ft. Liebert XD Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF supply
0.8 lb. (0.36)
10 ft. Liebert XD Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF supply
Return Line Diameter 5/8"
0.01 lb. (0.01)
4 ft. Liebert XD Flex Pipe existing Liebert XDV systems
0.02 lb. (0.01)
6 ft. Liebert XD Flex Pipe existing Liebert XDV systems
0.03 lb. (0.01)
8 ft. Liebert XD Flex Pipe existing Liebert XDV systems
0.03 lb. (0.01)
10 ft. Liebert XD Flex Pipe existing Liebert XDV systems
Return Line Diameter 1"
0.13 lb. (0.06)
4 ft Liebert XD Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF supply
0.2 lb. (0.096)
6 ft Liebert XD Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF supply
0.27 lb. (0.126)
8 ft Liebert XD Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF supply
0.33 lb. (0.15)
10 ft Liebert XD Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF supply
Table 10
Calculating refrigerant charge—example
Components
Number of Units
or Piping Length,
feet
Pounds
Per Component
Total, lb.
Liebert XDC
1
157
157
Liebert XDV8 Cooling Modules
20
2.32
46.4
Supply Main, 1-1/8"
100
0.45
45
Return Main, 2-1/8"
100
0.28
28
Liebert XDV 1/2" supply Liebert XD Flex Pipes
20
0.8
16
Liebert XDV 5/8" return Liebert XD Flex Pipes
20
0.03
0.6
Total
293
Table 11
Worksheet to calculate refrigerant charge
Components
Number of Units
or Piping Length
Pounds
Per Component
Total
Total