Vertiv Liebert DA265 - Page 86

REV : 0
REV DATE : 2/20
DPN005207
Page :1 /2
Form No.: DPN001040_REV4
AIR COOLED PIPING SCHEMATIC
LIEBERT
®
DSE
CIRCUIT 1
CIRCUIT 2
Field Piping
Maximum Vertical
Rise
Notes:
1. The bottom of the condenser coil must be no greater
than 60 ft (18.3m) higher than the elevation of the EEV
inside the indoor unit.
2. 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. DA265 with horizontal discharge has
internally installed traps on the hot gas discharge line.
3. 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.
4.
Unit piping entrance varies by unit and may be through
the top of the unit.
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.
1
Liquid
Return
Hot Gas
Discharge
Hot Gas
Discharge
Hot Gas
Discharge
Liquid
Return
Liquid
Return
Liquid
Return
1
Internal EEV Height H inch ( mm)
DA265 56 (1422)
60ft
18.3m
H
Notes:
DA265 with horizontal discharge should be piped out
the top of unit.
54 7/8"
1393mm
Liebert
®
MCV MOUNTED ABOVE DA265
Liebert
®
MCV Condenser
Unit
Liebert
®
EconoPhase
Unit