Table of Contents
Advertisement
4.2.2 Additional Oil Requirements for 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 8.1
on page 28 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 Vertiv sales representative, visit https://www.vertivco.com/en-us/support/,
or contact the compressor manufacturer if questions arise.
System charges may require additional oil charge to be added. See Table 4.8 below, for the amount
required for various system charge levels.
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.
Documenting Refrigerant Charge and Oil Addition
When the unit is charged, you must record the total system refrigerant charge value on the condensing
unit's serial tag. The total system charge includes the evaporator, condensing unit, and interconnecting
lines, plus any adjustments made during the field-charge verification step.
On the tag marked "Oil Added Field Service Record," attached to each compressor, record the date the oil
was added and the amount of oil added.
4 Piping and Refrigerant Requirements
Table 4.8 Additional oil required per refrigerant charge
PFD037
Refrigerant System
Charge per Circuit,
Additional Oil Required Per Circuit, oz (ml)
lb (kg) *
< 40 (18.1)
0
40 (18.1)
4 (120)
50 (22.7)
6 (180)
60 (27.2)
8 (240)
70 (31.8)
10 (300)
80 (36.3)
12 (350)
* System Charge = indoor unit + condensing unit + refrigerant lines.
For system charges over 80lb. (36.3 kg), consult your Vertiv representative.
Source: DPN003950 Rev 5.
Model
PFD054
PFD067, PFDZ67
0
0
4 (120)
6 (180)
6 (180)
9 (270)
8 (240)
12 (350)
10 (300)
15 (440)
12 (350)
18 (530)
19
Hide quick links:
Advertisement
Table of Contents
