Vacuum And Refrigerant Charge; Table 18 Indoor Unit Charge R-410A Refrigerant And Oil Charge For Air-Cooled Models; Table 19 Interconnecting Piping Refrigerant Charge; Table 21 Fin/Tube Condensers Air-Cooled Condenser Refrigerant Charge - Emerson Liebert CRV User Manual

6.6

Vacuum and Refrigerant Charge

NOTICE
Risk of improper refrigerant charge. Can cause equipment damage and reduced efficiency.
Check the refrigerant type to be used on the data plate of the air conditioner and on the
refrigerating compressor.
Table 18 Indoor unit charge R-410A refrigerant and oil charge for air-cooled models
Refrigerant
Model
CR019RA
CR020RA
CR035RA
The recommended oil is EMKARATE RL 32-3MA.
Table 19 Interconnecting piping refrigerant charge
External Pipe Diameter
x Wall Thickness
In. (mm)
1/2 x 0.049 (12 x 1)
9/16 x 0.049 (14 x 1)
5/8 x 0.049 (16 x 1)
3/4 x 0.049 (18 x 1)
7/8 x 0.065 (22 x 1.25)
1-1/8 x 0.065 (28 x 1.5)
(+) Liquid pressure and density varies according to condensing temperature.
Table 20 Refrigerant required, R-410A, approximate for Liebert MC Condensers, with and without
Liebert Lee-Temp
Condenser Condensers w/o
Models Liebert Lee-Temp
MCS028
MCM040
MCM080
MCL055
MCL110
Source: DPN002411, Rev. 3
Table 21 Fin/tube condensers air-cooled condenser refrigerant charge
VFD
Model lb (kg)
28 K 7 (3.2)
60 K 16 (7.3)
90 K 25 (11.3)
1. Topping up is suggested for short pipeline, too, due to the extra-charge of refrigerant.
2. The air conditioner is supplied pressurized with helium at 1 bar.
3. DCSL or TCSV condenser
® ™
Liebert CRV
Base Oil Charge
Base
Initial Oil
Charge Charge
lb (kg) oz (kg)
5 (2.7) 60 (1.68)
7 (3.2) 60 (1.68)
10 (4.5) 110 (3.08)
Hot Gas Line
R-410A,
lb/feet (kg/m)
—
0.0084 (0.0124)
0.0114 (0.0169)
0.0149 (0.0221)
0.0232 (0.0346)
0.0392 (0.0584)
Single Circuit, lb/circuit (kg/circuit)
Condensers with
Liebert Lee-Temp
2.5 (1.2) 18.3 (8.4)
3.5 (1.6) 19.3 (8.8)
8.5 (3.8) 39.6 (18.1)
5.0 (2.3) 24.2 (11.0)
10.7 (4.9) 49.0 (22.2)
Liebert Lee-Temp
(Inc. Receiver), lb (kg)
41 (18.6)
75 (34.0)
109 (49.4)
Refrigerant Connections for Air-Cooled Units
Maximum System
Maximum Refrigerant Charge
Topping before Oil Addition,
Up, oz (kg) lb (kg)
56 (1.57) 38 (17.1)
56 (1.57) 38 (17.1)
106 (2.97) 28 (12.6)
Liquid Line (+) Condensing
Temperatures - R-410A, lb/ft (kg/m)
95°F (35°C) 115°F (46°C)
0.05 (0.08) 0.05 (0.07)
0.07 (0.11) 0.07 (0.11)
0.10 (0.16) 0.10 (0.14)
0.14 (0.20) 0.13 (0.19)
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™
42
Fluid Ounces of Oil
to Add for Every
10 lb. (4.5kg) of
Refrigerant Over
Maximum
System Charge, oz (ml)
1.6 (48)
1.6 (48)
4 (120)
135°F (57°C)
0.04 (0.07)
0.06 (0.10)
0.09 (0.13)
0.11 (0.17)
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