Liebert CR020 User Manual page 63

No. Component
1 High pressure transducer
2 Low pressure transducer
3 High pressure switch (HP)
Clogged filter differential
4
pressure switch (CF)
Table 5 R410A refrigerant and oil charge for air cooled models (A type)
Base
Model refrigerant
charge (kg)
CR020RA 5.9
CR035RA 10
Note*:
The recommended oil is EMKARATE RL 32-3MA
External pipe diameter
(mm)
12 × 1
16 × 1
19 × 1.2
22 × 1.2
28 × 1.2
Note*:
Liquid pressure and density varies according to condensing temperature
The distance of pipeline for air cooled models is shown in Figure 4.
Table 4 Calibrations of electrical components
Setting
Range: 0 ~ 45barg
Output: 0 ~ 5V
Range: 0 ~ 17.3barg
Output: 0 ~ 5V
Stop: 37.0
Start: 30.0
(Fixed setting – manual reset)
Set point range: 0.5mbar ~
4mbar
Filter G4 = 2mbar
Base oil charge*
(oil within compressor, kg)
Initial oil charge Max. topping up
1.68 1.57
3.08 2.97
Table 6 Refrigerant charge of pipeline for air cooled models
R410A gas （ kg/m ）
-
0.0169
0.0221
0.0346
0.0584
Pipeline from conditioner to air condenser
Condenser
Distance (D) = a + b + c
Figure 4 Distance of pipeline
Liebert.CRV Series Air Conditioner User Manual
Appendix 2 Technical Data Tables
Notes
See iCom manual
See iCom manual
±
1barg
±
1.5barg
Reset
Setting
ring
Max. system refrigerant
charge before oil
addition (kg)
17.1
12.6
At different condensing temperatures, R410A liquid* (kg/m)
35°C 46°C
0.08
0.16
0.20
-
-
c
Air conditioner
a
Contact
-
-
Normally closed
Normally closed
Weight of oil to add for every
4.5kg of refrigerant over Max.
system charge (g)
44.8
112.0
57°C
0.07 0.07
0.14 0.13
0.19 0.17
- -
- -
b
53