Line Size, O.D., in. Liquid Line Hot Gas Line
3/8 3.2 (1.4) —
1/2 5.9 (2.7) 0.7 (0.3)
5/8 9.6 (4.3) 1.1 (0.5)
3/4 14.3 (6.4) 1.6 (0.7)
7/8 19.8 (8.8) 2.3 (1.0)
1-1/8 33.8 (15.1) 3.9 (1.7)
1-3/8 51.5 (23.0) 5.9 (2.6)
1-5/8 — 8.4 (3.7)
Source: DPN003099, Rev. 0
Table 5.6 Interconnecting piping refrigerant charge for R-410A, lbper 100ft(kgper30m)
CondenserModel
Condensers without
receivers, lb (kG)
Condensers
withLiebert Lee-Temp
1
receiver, lb (kG)
Condensers without Liebert
Lee-Temp
1
receiver, lb (kG)
MCS028 2.5 (1.2) 21.7 (9.8) 11.0 (5.0)
MCM040 3.5 (1.6) 22.7 (10.3) 12.0 (5.4)
MCL055 5.0 (2.3) 24.2 (11.0) 13.5 (6.1)
MCM080 8.5 (3.8) 39.8 (18.1) 17.0 (7.7)
1. Condenser charge includes receiver.
Source: DPN002411 Rev. 8
Table 5.7 Condenser refrigerant charge approximateR-410A per circuit including receiver
Additional Oil Requirements forScrollandDigital-scrollCompressors
See Table 5.8 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.
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.
Model
Refrigerant System Charge Per Circuit, lb (kg) *
<40
(18.1)
40
(18.1)
50
(22.7)
60
(27.2)
70
(31.8)
80
(36.3)
90
(40.8)
100
(45.4)
110
(49.9)
Additional Oil Required Per Circuit, oz (ml)
PX011 0 4 (120) 6 (180) 8 (240) 10 (300) 12 (360) 14 (410) 16 (480) 18 (530)
PX018 0 6 (180) 9 (270) 12 (360) 15 (440) 18 (530) 21 (620) 24 (720) 27 (800)
PX023 0 6 (180) 9 (270) 12 (360) 15 (440) 18 (530) 21 (620) 24 (720) 27 (800)
PX029 0 6 (180) 9 (270) 12 (360) 15 (440) 18 (530) 21 (620) 24 (720) 27 (800)
Table 5.8 Additional oil required per refrigerant charge
Vertiv | Liebert® PDX™ and PCW™ Installer/User Guide | 37
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