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Glycol/GLYCOOL-Cooled Models—Self-Contained Compressor
53 Liebert
®
Challenger 3000
™
Figure 28 General arrangement—GLYCOOL models with digital scroll compressor
r
Digital
Solenoid
Valve
Pump
Housing
Glycol
Pump
Unions*
Isolation
Valves*
Expansion
Valve
Evaporator
Coil
Drycooler
Coil
Drycooler
Electric
Box
Unions*
Pressure
Port*
Hose
Bib*
Fill*
Fluid
Return to
Pump
Fluid
Supply
from
Pump
A
ir Vents*
at Top of
Risers
Flow Regulating Valve*
Pressure
Port*
Sight
Glass
Sensing
Bulb
External
Equalizer
Service
Valves
Filter
Dryer
Econ-O-Coil
3-Way Chilled
Glycol Valve
3-Way Motorized
Ball Valve
Valve
Actuator
Econ-O-Cycle
Comparator
Econ-O-Coil
Circuit
Tube-
in-Tube
Condenser
Fluid
Supply to
Unit
Fluid
Return
from
Unit
Isolation
Valves*
Hose
Bibs*
FACTORY PIPING
FIELD PIPING
*Components are not supplied by Liebert but
are recommended for proper circuit operation
and maintenance.
Expansion Tank Field-Installed at
Highest Point in System
DPN001724
Rev. 0
Field-Supplied
Reducers
Required on 3-Ton Units
To Liebert
iCOM Control
Digital
Compressor