Unit installation

Electrical Data
67
Topping up is requested for short pipeline, too, due to the extra-charge of refrigerant.
The air conditioner is supplied pressurized with helium at 1 bar.
Figure 53 Pipeline air conditioner - condenser
Table 17 R-410A refrigerant and oil charge for air-cooled models
Model
Base
Refrigerant
Charge
1
lb (kg)
Base Oil Charge
1
Max. System
Refrigerant Charge
before Oil Addition,
lb (kg)
Weight of Oil to Add for
Every 10lb (4.5kg) of
Refrigerant over Max
System Charge,
oz (kg)
Initial Oil
Charge
oz (kg)
Max. Topping
Up
oz (kg)
CR020RA 7 (3.2) 60 (1.68) 56 (1.57) 38 (17.1) 1.6 (.045)
CR035RA 10 (4.5) 110 (3.08) 106 (2.97) 28 (12.6) 4 (.113)
1. The recommended oil is EMKARATE RL 32-3MA.
Table 18 Refrigerant charge
1
External Pipe Diameter
in (mm)
Gas R-410A,
lb/feet (kg/m)
Liquid (+), at Different Condensing
Temperatures - R-410A, lb/ft (kg/m)
95°F (35°C) 115°F (46°C) 135°F (57°C)
1/2" x 0.049 (12 x 1) - 0.05 (0.08) 0.05 (0.07) 0.04 (0.07)
9/16" x 0.049 (14 x 1) 0.0084 (0.0124) 0.07 (0.11) 0.07 (0.11) 0.06 (0.10)
5/8" x 0.049 (16 x 1) 0.0114 (0.0169) 0.10 (0.16) 0.10 (0.14) 0.09 (0.13)
3/4" x 0.049 (18 x 1) 0.0149 (0.0221) 0.14 (0.20) 0.13 (0.19) 0.11 (0.17)
7/8" x 0.065 (22 x 1.25) 0.0232 (0.0346) — — —
1-1/8" x 0.065 (28 x 1.5) 0.0392 (0.0584) — — —
(+) Liquid pressure and density varies according to condensing temperature (see refrigerant tables).
1. For distance D see Figure 53 - Pipeline air conditioner - condenser
Table 19 Air-cooled condenser refrigerant charge
Model
VFD
Liebert Lee-Temp
(inc. receiver)
lb (kg) lb (kg)
28 K 7 (3.2) 46 (20.9)
60 K 16 (7.3) 84 (38.1)
90 K 25 (11.3) 120 (54.4)
Table 20 Refrigerant and oil charge for water-cooled models
Model
R-410A
Refrigerant Charge
Initial Oil
Charge
1
lb (kg) oz (kg)
CR020RW 14.3 (6.5) 60 (1.68)
CR035RW 19 (8.6) 110 (3.08)
The air conditioner is supplied complete with refrigerant and oil.
1. The recommended oil is EMKARATE RL 32-3MA.
B
C
CDT
COND
A
(Distance) D = A + B + C
CDT = Conditioner
COND = Condenser