Mechanical Installation
Vertiv | Liebert CRD10 | User Manual
41
Figure 3-16 Connection of Drainage Pipes
3.7.4
Connecting the Copper Pipes between the Indoor and Outdoor Unit
The indoor and outdoor units are connected through the silver-brazed copper pipes. Piping must be type ACR
copper tubing, Table 3-7 shows the standard pipe diameters for connection between the indoor unit and the
remote condenser. The pipe diameter of the indoor unit and outdoor unit should be determined by the
specifications mentioned in Table 3-7, taking into account the effect of the pipe diameter on the system
pressure drop. Alternatively, consult Vertiv technician for details.
Table 3-7 Recommended Refrigerant Line Sizes
Model
CRD10
Pipe length L (m(ft.))
External Diameter x Pipe Thickness mm(in.)
Discharge pipe
Liquid pipe
0
< L≤40(131.2)
16(5/8) x 1(0.04)
12.7(1/2) x 1(0.04)
40(131.2) < L≤91(300.0)
18(3/4) x 1(0.04)
16(5/8) x 1(0.04)
NOTE: Pipe length = Actual Equivalent Length of Partial Components
Recommended equivalent length of the partial components for the different pipe diameters which also
include resistance loss from the elbow joints are listed in Table 3-8. Before installation, make a choice
Drainage hole of pump
Drainage hole
Liquid pipe hole
Discharge pipe hole
Cable hole
