Liebert CSU3000 Refrigerator User Manual


 
Liebert CSU3000
4 Guide Specifications
2.2.2 Water Cooled
Condenser
The water cooled condensers shall be cleanable, counterflow shell and tube with removable heads.
Condensers shall be A.S.M.E. stamped for maximum refrigerant pressure of 400 PSI at 300°F. The unit
shall require ______ GPM of ______ °F water and have a maximum pressure drop of ______ PSI.
Water Regulating Valve
The water-cooled condenser shall be factory piped with a head-pressure actuated water regulating valve
(2-way) and a hand operated isolation valve.
2.2.3 Glycol Cooled
Condenser
The glycol-cooled condensers shall be cleanable, counterflow shell and tube with removable heads.
Condensers shall be A.S.M.E. stamped for maximum refrigerant pressure of 400 PSI at 300°F. The unit
shall require ______ GPM of ______ °F 40% glycol and have a maximum pressure drop of ______ feet
of water.
Glycol Regulating Valve
The glycol-cooled condenser shall be factory piped with a head-pressure actuated water regulating valve
(2-way with bypass) and a hand-operated isolated valve.
Drycooler
Each chiller module shall be provided with a Liebert-manufactured drycooler. The low-profile, propeller
fan drycooler shall be designed for vertical air flow and include an integral electrical panel that contains
all the necessary electrical components for both drycooler fans and glycol circulating pump. The
condenser shall be designed for an outdoor ambient of ______ °F. The copper-tube, aluminum-fin coil
shall be housed in a corrosion-resistant aluminum cabinet.
Glycol Pump Package
Each module shall be provided with a centrifugal pump mounted in a weatherproof, vented enclosure that
matches the finish of the drycooler
2.3 GLYCOOL SYSTEMS (CS/CD MODULES ONLY)
2.3.1 Glycool Module
The glycool system shall be a basic glycol cooled system plus the necessary components to eliminate
compressor operation during low ambient conditions automatically. The glycool system shall include a
fully proportional 3-way mixing valve, and a solenoid valve to control glycol flow. All the control
circuitry necessary to operate the system shall be factory installed, connected and calibrated.