7 Start-up
7.1 Charging Refrigerant and Lubricating Oil
7.1.1 Amount of Refrigerant and Lubricating Oil
NOTE: The unit is not charged with refrigerant from factory. You need to charge refrigerant on site. The refrigerant
for the unit is R410A.
NOTE: The unit has been charged with certain amount of lubricating oil in the factory. If the liquid pipe between the
evaporator and condenser is shorter than 30 m (98.4 ft) and the unit is not equipped with a low ambient kit, you do
not need to add extra lubricating oil. If the unit is equipped with a low ambient kit or if the liquid pipe between the
evaporator and condenser is longer than 30 m (98.4 ft), you need to add extra lubricating oil. The lubricating oil for
the unit is POE (32-3MAF).
NOTE: Do not use refrigerant and lubricating oil of poor quality or wrong type, as they can damage the system.
Liquid Pipe
Length
Total Refrigerant Charge without
Low Ambient Kit
Total Refrigerant Charge with
Low Ambient Kit
Extra Lubricating Oil Charge without
Low Ambient Kit
Extra Lubricating Oil Charge with
Low Ambient Kit
m
ft
kg
lb
kg
lb
ml
oz
ml
oz
10
32.8
10
22.05
25
55.1
-
-
3650
123.42
15
49.2
10.9
23.97
25.9
57
-
-
3650
123.42
20
65.6
11.7
25.89
26.7
59
-
-
3650
123.42
25
82
13.7
30.15
28.7
63.2
-
-
3650
123.42
30
98.4
14.9
32.85
29.9
65.9
-
-
3650
123.42
35
114.8
16.1
35.56
31.1
68.6
147
4.97
3797
128.39
40
131.2
17.4
38.26
32.4
71.3
294
9.94
3944
133.36
45
147.6
18.6
40.96
33.6
74
441
14.91
4091
138.33
50
164
19.8
43.66
34.8
76.7
588
19.87
4238
143.3
55
180.4
24.4
53.9
39.4
87
963
32.55
4613
155.98
60
196.8
26.1
57.44
41.1
90.5
1156
39.06
4806
162.5
65
213.2
27.7
60.98
42.7
94.1
1348
45.57
4998
169.01
70
229.6
29.3
64.52
44.3
97.6
1541
52.08
5191
175.52
75
246
30.9
68.06
45.9
101.1
1733
58.59
5383
182.03
80
262.4
32.5
71.6
47.5
104.7
1926
65.1
5576
188.55
85
278.8
34.1
75.14
49.1
108.2
2119
71.61
5769
195.06
90
295.2
35.7
78.67
50.7
111.7
2311
78.12
5961
201.57
95
311.6
37.3
82.21
52.3
115.3
2504
84.63
6154
208.08
100
328
38.9
85.75
53.9
118.8
2696
91.14
6346
214.6
105
344.4
40.5
89.29
55.5
122.4
2889
97.65
6539
221.11
Table 7.1 CRD 25 Total Refrigerant Charge and Extra Lubricating Oil Charge
7 Start-up
49
Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual
