Vertiv CoolPhase CDU - Refrigerant Line Sizes and Equivalent Lengths; Refrigerant Charge Requirements for Air Cooled Systems

5.3.3 Refrigerant Line Sizes and Equivalent Lengths
Model XDM300
Equivalent Length Hot Gas Line, in. Liquid Line, in.
50 ft. (15 m) 1-5/8 1-3/8
100 ft. (30 m) 1-5/8 1-3/8
150 ft. (45 m) 1-5/8* 1-3/8*
300 ft. (91 m) 1-5/8* 1-3/8*
450 ft (137 m) Consult the Factory Consult the Factory
*Consult factory for Vertiv™ CoolPhase CDU unit can be extended to max 200ft (61m) linear or 300ft. (91m) equivalent.
Source: DPN000788.
Table 5.4 Recommended Refrigerant Line Sizes, OD Copper
NOTE: See the piping schematics for your system in Submittal Drawings on page107 . For installations using pre-
fabricated heat rejection skids, included piping must be factored into total equivalent length calculation. Please
consult factory for details.
5.3.4 Refrigerant Charge Requirements for Air Cooled Systems
The following tables provide the refrigerant charge requirements for the Vertiv™ CoolPhase CDU, connected piping, and
condenser options.
Indoor Unit Type Model Circuit 1 lb. (kg) Circuit 2 lb. (kg)
Air Cooled Liebert® XDM300 25 (11.3) 25 (11.3)
See Table 12.2 on page96 for recommended oil for the system.
To calculate the full system charge, use the data in this table and the data located in the following tables:
• Table 5.6 on the facing page
• Table 5.7 on the facing page
• Table 5.9 on page53
For system charges over 200 lb. (90.7kg), consult your Vertiv representative.
Table 5.5 Indoor Unit Refrigerant Charge
50 Proprietary and Confidential ©2024 Vertiv Group Corp. 5 Refrigerant Piping Requirements
Vertiv™ CoolPhase CDU Installer/User Guide