Vertiv Liebert DSE - Additional Oil Requirements for Scroll and Digital-Scroll Compressors

Line Size, O.D., in. Liquid Line Hot Gas Line
7/8 19.8 (9.1) 2.3 (1.0)
1-1/8 33.8 (15.5) 3.9 (1.8)
1-3/8 51.5 (23.5) 5.9 (2.7)
Source: DPN003099, Rev. 1
Table 5.7 Interconnecting Piping Refrigerant Charge for R-410A, lb per 100ft (kg per 30m)
System Type Model Charge per Circuit, lb(kg)
Liebert® EconoPhase™ Pumping Unit
PR125
PR085
PR050
5.4 (2.5)
Table 5.8 Liebert Pump Module Refrigerant Charge forR-410APer Circuit
5.2.4 Additional Oil Requirements forScrollandDigital-scrollCompressors
NOTICE
Risk of improper compressor lubrication. Can cause compressor and refrigerant system
damage.
Failure to use oil types, viscosities and quantities recommended by the compressor
manufacturer may reduce compressor life and void the compressor warranty. See Table 10.3
on page70 for the recommended oil for the system.
• Do not mix polyolester (POE) and mineral-based oils.
• Do not mix oils of different viscosities.
• Consult your local sales representative, Vertiv product support at 1-800-543-2778, or the
compressor manufacturer if questions arise.
See Table 5.9 on the facing page, for the amount required for various system charge levels.
In addition to oil added based on system charge, additional oil is required for discharge-line field-installed
traps. Standard-formed tube traps are required, see Figure 5.2 on the facing page and Table 5.10 on
page40, because straight tubes and fittings used as traps require much more oil and the length of the
straight tube can vary.
After the system has been fully charged with refrigerant, use a hand pump to add the additional oil at the
suction side of the system while the system is running.
The amount of oil added by field service must be recorded on the tag marked “Oil Added Field Service
Record,” attached to each compressor. The date of oil addition must be included as well.
Vertiv | Liebert® DSE™ Installer/User Guide
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