Vertiv Liebert Drycooler - Page 82

REV : 4
REV DATE : 6/19
DPN001432
Page :1 /1
GLYCOOL™ DIGITAL SCROLL COMPRESSOR MODELS
Form No.: DPN001040_REV4
PIPING SCHEMATIC
LIEBERT DS
NOTE: SCHEMATIC REPRESENTATION SHOWN. THIS SCHEMATIC DOES NOT IMPLY OR DEFINE ELEVATIONS
AND COMPONENT LOCATION, UNLESS SPECIFICALLY NOTED.
Service
Valve
Service
Valve
Components are not supplied by Liebert but are
required for proper operation and maintenance
Field installed at highest point in system on
return line to pumps
Locate at tops of all risers and any intermediate
system high points
External
Equalizer
Sensing Bulb
NOTE: TWO REFRIGERATION CIRCUITS PROVIDED.
SINGLE REFRIGERATION CIRCUIT SHOWN FOR CLARITY.
FIELD PIPING
FACTORY PIPING
Check
Valve
EVAPORATOR
COIL
Expansion
Valve
COMPRESSOR
LIQUID
SUCTION
Sight
Glass
Solenoid
Valve
Filter Drier
PARADENSER®
CONDENSER
TO SECOND
REFRIGERATION
CIRCUIT
Hose
Bib
Shut-Off Valve
Hose
Bib
Shut-Off Valve
Flow-Regulating
Valve
Flow Switch Supplied
with Dual Pump
Systems
Pressure Port
Gate Valves
Check Valves
(on Dual Pump
Systems only)
GLYCOL
PUMPS
EXPANSION
TANK
Hose
Bib
ECON-O-COIL
SERVICE / SCHRADER (ACCESS) CONNECTION WITH VALVE CORE
SERVICE / SCHRADER (ACCESS) CONNECTION NO VALVE CORE
Aquastat
Sensing
Bulbs
Pressure
Port
3-Way
Motorized
Ball Valve
Optional Dual Pump System shown
DRYCOOLER
(Glycol)
Air Vents
(typical)
Shut-Off Valve
Shut-Off Valve
LIEBERT
HEAT REJECTION
LIEBERT DS UNIT
(and associated piping)
RETURN
SUPPLY
RETURN
SUPPLY
DISCHARGE
Thermistor
Relief valve(s) supplied
with 50 Hz EU CE units rated
maximum 480 PSIG (33 Bar).
Pressure
Transducer
To
iCOM
Control
From
iCOM
Control
28-42kW Digital Solenoid Valve
53-70kW Digital
Solenoid Valve
3
2
1
1
1
1
1
1
1
1
1
1
1
1
2
3
1
OPTIONAL FACTORY PIPING
3-Way Chilled
Glycol Valve
Threaded
Pipe Union
Typ. (4) Plcs.
1