14
IOM_UMXCBA-UMXCA_801.1a4502.2_208027_200201_EN
UMXCBA/UMXCA
CONDENSER UNITS WITH
COMPRESSOR AND AXIAL FAN
INSTALLATION
REFRIGERANT LINES
Additional load in the interconnection pipes
Pipe
ADDITIONAL LOAD in the interconnecting pipes according to the pipe diameters and
the real length (m)
Grams per
metre
5
10
20
30
40
50
GAS
(g/m)
LIQ.
(g/m)
GAS
(g)
LIQ.
(kg)
GAS
(g)
LIQ.
(kg)
GAS
(g)
LIQ.
(kg)
GAS
(g)
LIQ.
(kg)
GAS
(g)
LIQ.
(kg)
GAS
(g)
LIQ.
(kg)
3/16''
0
9
1
0,04
2
0,09
5
0,17
7
0,26
10
0,34
12
0,43
1/4 ''
1
18
3
0,09
5
0,18
10
0,37
15
0,55
21
0,73
26
0,91
5/16''
1
33
5
0,16
9
0,33
18
0,65
28
0,98
37
1,30
46
1,63
3/8 ''
1
51
7
0,25
14
0,51
29
1,02
43
1,53
58
2,04
72
2,55
1/2 ''
3
100
14
0,50
28
1,00
56
2,00
85
3,0
113
4,0
141
5,0
5/8 ''
5
165
23
0,83
47
1,65
93
3,3
140
4,9
187
6,6
233
8,7
3/4 ''
7
236
33
1,18
67
2,36
133
4,7
200
7,1
266
9,4
333
11,8
7/8 ''
9
332
47
1,66
94
3,3
187
6,6
281
9,9
375
13,3
468
16,6
1 ''
13
444
63
2,22
125
4,4
251
8,9
376
13,3
501
17,8
627
22,2
1 1/8''
16
573
81
2,86
162
5,7
323
11,5
485
17,2
647
22,9
808
28,6
1 3/8''
24
853
120
4,3
241
8,5
481
17,1
722
25,6
963
34,1
1204
42,6
1 5/8''
34
1219
172
6,1
344
12,2
688
24,4
1033
36,6
1377
48,8
1721
60,9
2 1/8''
61
2149
303
10,7
607
21,5
1213
43,0
1820
64,5
2427
85,9
3033 107,4
2 5/8''
92
3257
460
16,3
920
32,6
1839
65,1
2759
97,7
3678 130,3 4598 163,0
3 1/8''
132 4693
662
23,5
1325
46,9
2650
93,9
3975 140,8 5300 187,7 6625 234,7
3 5/8''
174 6148
868
30,7
1736
61,5
3472 123,0 5208 184,5 6943 245,9 8679 307,4
4 1/8''
225
7979 1126
39,9
2253
79,8
4505 159,6 6758 239,4 9011 319,2 11264 398,9
Example: Unit with liquid and gas pipes of 10 m real length each. The nameplate of the unit states a base load of 9
kg of the R410A refrigerant. The installed liquid line is of 3/4", the chart states 2,36 kg. The gas line is of
1 3/8” and
the table states 241 g=0,241 kg, therefore we calculate that the total quantity to be loaded is: 9 + 2,36 + 0,24 =
11,6 kg
of R410A.
The same result can be obtained by using the gram information per meter of the gas and liquid pipes stated in the
chart: (236+24) and multiplying by the meters (10 m): 236*10 + 24*10 = 2600 g =
2,6kg
. We will calculate again
the total value by adding this value to the base load: 9 + 2,6 =
11,6 kg
.