Vertiv
™
| Liebert® XDO | User Manual
18
ITEMS
DESCRIPTION
ITEMS DESCRIPTION
1
Refrigerant inlet
3
Cable inlet/outlet
2
Refrigerant outlet
4
Drain
Figure 2-17 Unit Pipeline Location
2.10.3. Connection Between the Main Unit and the Terminal
Refer to the relevant content of the overall system layout in “Vertiv
™
Liebert® XDC multi-connected air conditioner
main unit User Manual”.
2.10.4. Air Tightness Test
Refer to the relevant content of the overall system layout in “Vertiv
™
Liebert® XDC multi-connected air conditioner
main unit User Manual”.
2.10.5. Condensate Drain Piping Connection
In the dehumidification mode, the drain pan collects the condensed water of the evaporator and the drain pump discharges
it through the drainage piping. The drainage copper piping of the upper drainage unit has its own check valve to prevent
back flow of the water in the engineering piping from the unit’s drain pan. The unit has a water pump and the user needs to
drain water from the top of the unit. Connect the external drain piping to the upper drain hole on the top of the cabinet as
(pipe joints, 3/4”-BSP have been installed). The external piping must be done from customer end, and
the recommended material is PVC that should be used for piping.
Note: To avoid water leakage, use Teflon tape between the flexible pipe and the joint.
