Can the cooling modules in Liebert XD be combined in an installation?
Yes, they can be combined so they are connected to the same piping circuit supported by an XDP/XDC. Combining XDO with XDV is recommended. Since the XDH modules have a horizontal air flow pattern, and the XDV and the XDO have a vertical air flow pattern, supplying cold air down into the cold aisle, it is typically not recommended to combine XDH with XDV or XDO.