Vertiv Liebert XDC User Manual

4 PIPING AND FILLING WITH REFRIGERANT: R-134A AND
R-407C CIRCUITS
4.1 European Union Fluorinated Greenhouse Gas Requirements
Stationary air conditioning, refrigeration, heat pump equipments and stationary fire protection systems in
the European Community market and operating with fluorinated greenhouse gases (f-gas), such as
R407C, R134a, R410A, must comply with the F-Gas Regulation: (EC) No. 842/2006 (F-gas). The regulation
prohibits, among other actions, venting fluorinated greenhouse gases to the atmosphere.
The F-Gas Regulation requires operators to use all measures that are technically feasible and do not
entail disproportionate cost to prevent leakage of these gases, to test for leakage regularly and to recover
f-gas before disposing of equipment, as well as during service and maintenance.
Refer to the full regulation for additional details.
4.2 Recommended Pipe Size
NOTE: Follow all local codes on maximum length and size of refrigerant lines.
Connect the main pipes between the Liebert XDC and the Liebert XD cooling modules according to site
specific documentation and the configuration guide for the Liebert XD system.
Elbows and restrictions shall be minimized for proper operation.
Pipe Function Size/Equivalent Pipe Length
Liebert XDC supply line, from Liebert XDC
supply to farthest Liebert XD cooling module
1-1/8" OD (1.025" ID) for lengths up to 60 feet
1-3/8" OD (1.265" ID) for lengths over 60 but less than 175 feet
Liebert XDC return line, from farthest cooling module to Liebert
XDC return
2-1/8" OD (1.985" ID) for lengths up to 60 feet
2-5/8" OD (2.465" ID) for lengths over 60 but less than 175 feet
From any model Liebert XDO/Liebert XDH supply to supply line
of Liebert XDC
1/2" OD (0.430" ID) for lengths up to 10 feet
7/8" OD (0.785" ID) for lengths over 10 but less than 25 feet
From any model Liebert XDO/Liebert XDH return to return line
of Liebert XDC
7/8" OD (0.785" ID) for lengths up to 10 feet
1-1/8" OD (1.025" ID) for lengths over 10 but less than 25 feet
From any model Liebert XDV/Liebert XDCF supply to supply line
of Liebert XDC
1/2" OD (0.430" ID) for lengths up to 10 feet
5/8" OD (0.545" ID) for lengths over 10 but less than 35
From any model Liebert XDV/Liebert XDCF return to return line
of Liebert XDC
5/8" OD (0.545" ID) for lengths up to 10 feet
7/8" OD (0.785" ID) for lengths over 10 but less than 35 feet
Table 4.1
Supply, return pipe sizes for Liebert XD refrigerant loop
Vertiv | Liebert® XDC™ User Manual | 37

Vertiv Liebert XDC Specifications

General

Brand	Vertiv
Model	Liebert XDC
Category	Freezer
Language	English