REV : 3
REV DATE : 06/17/2021
DPN005138
Page :1 /2
Form No.: DPN001040_REV4
AIR COOLED PIPING SCHEMATIC
LIEBERT® XDM
LIEBERT® MCV WITHOUT RECEIVER MOUNTED ABOVE LIEBERT® XDM
CIRCUIT 1
CIRCUIT 2
Liebert® MCV Condenser
Unit
Liebert® EconoPhase
Unit
Field Piping
Liquid
Return
2
Liebert® XDM
XDM200
54 7/8"
1393mm
Ref.
Notes:
1. Single refrigerant circuit shown for clarity, for XDM400 units refrigerant connections are typical.
2. The bottom of the condenser coil must be less than 60' (18.3m) above the elevation of the
EEVs inside the indoor unit.
3. Unit must be trapped at bottom of riser with any rise over 5 feet (1.5m) high. If rise exceeds
25 feet (7.5m), then a trap is required in 20 foot (6.1m) increments or evenly divided.
4. Pitch horizontal hot gas piping at a minimum of ½ inch per 10 feet (42mm per 10m) so that gravity
will aid in moving oil in the direction of the refrigeration flow.
5. All indoor and outdoor field refrigerant piping must be insulated, ½ inch minimum. All outdoor
insulation must be UV and ozone resistant.
6. Consult factory for any exceptions to the above guidelines.
2
33 1/16"
840mm
Internal EEV
Height
60'
18.3m
Maximum Vertical
Rise
Hot Gas
Discharge
Hot Gas
Discharge
Liquid
Return
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