Vertiv | Liebert PEX4 | User Manual
35
Installation
2.6. Refrigerant Piping Connection
Select the appropriate dimensions (Pipe diameter & Wall thickness) of pipes connecting the indoor and
outdoor units. Considering the effect of the diameter and wall thickness of copper piping on the pressure drop
of the system, the pipe dimensions of the indoor and outdoor units should be determined according to the
specifications in
or consult Vertiv local representative. The recommended dimensions of piping is
given in
&
.
Table 2-6 Recommended Dimensions for Piping
Model
P1035
P1045
P1050
P1060
P2070
P2080
Pipe
length
D
L
D
L
D
L
D
L
D
L
D
L
10m
19/19
16/16
19/19
16/16
19/19
16/16
22/19
16/16
19/19
16/16
19/19
16/16
20m
19/19
16/16
22/19
16/16
22/22
16/16
22/22
19/16
19/19
16/16
22/19
16/16
30m
22/19
16/16
22/22
16/16
22/22
19/16
25/22
19/16
22/19
16/16
22/19
16/16
40m*
22/19
16/16
25/22
19/16
25/22
19/16
25/25
19/19
22/19
16/16
22/22
19/16
50m*
22/22
19/16
25/22
19/16
25/22
19/16
28/25
22/19
22/22
19/16
25/19
19/16
60m*
25/22
19/16
25/22
19/16
28/22
19/19
28/25
22/19
25/22
19/16
25/22
19/16
Table 2-7 Recommended Dimensions for Piping
Model
P2090
P2100
P2110
P2120
Pipe
length
D
L
D
L
D
L
D
L
10m
19/19
16/16
19/19
16/16
19/19
16/16
22/19
16/16
20m
22/19
16/16
22/22
16/16
22/22
16/16
22/22
19/16
30m
22/22
16/16
22/22
19/16
25/22
19/16
25/22
19/16
40m*
25/22
19/16
25/22
19/16
25/22
19/16
25/25
19/19
50m*
25/22
19/16
25/22
19/16
25/25
19/19
28/25
22/19
60m*
25/22
19/16
28/22
19/19
28/25
22/19
28/25
22/19
Table 2-8 Metric and Imperial Equivalent Values of Piping
Metric/Imperial Equivalents
mm
13
16
19
22
25
28
32
35
inch
1/2
5/8
3/4
7/8
1
1-1/8
>1-1/4
1-3/8
