Vertiv Liebert XDC User Manual

4.6.1 Calculating Refrigerant Charge—Example
Using Table 4.3 on page42,Table 4.4 on page42,Table 4.5 on the previous page andTable 4.6 on the
previous page, 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 CoolFrame, Liebert XDH, Liebert
XDO and Liebert XDV). The example below combines one Liebert XDC with 20 Liebert XDV8 cooling
modules.
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 4.7
Calculating refrigerant charge—example
Components
Number of Units
or Piping Length
Pounds
Per Component
Total
Total
Table 4.8
Worksheet to calculate refrigerant charge
Vertiv | Liebert® XDC™ User Manual | 44

Vertiv Liebert XDC Specifications

General

Brand	Vertiv
Model	Liebert XDC
Category	Freezer
Language	English