Liebert CSU3000 Refrigerator User Manual


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Liebert CSU3000
6 Guide Specifications
2.5.8 Information Gathering Module
Provide an Information Gathering Module for CSU3000 that permits communication with a Liebert
Sitemaster Model 200 or a Liebert SiteScan. The 3-module systems shall be equipped with
interconnecting cable.
2.5.9 Separate Pump Power Connection
Provide one 3-phase power connection for all pumps and controls, and one 3-phase power connection for
all other loads. Two locking disconnects shall be provided with this option on single module units. Four
locking disconnects shall be provided on dual module units. Six on triple module units.
2.5.10 Crankcase Heater
A crankcase heater shall be provided to prevent the migration of refrigerant to the compressor during off
cycles.
2.6 OPTIONAL EQUIPMENT CS/CD/CT MODELS
2.6.1 Capacity Control Valves
The semi-hermetic compressor shall be equipped with a capacity control valve that shall reduce
compressor capacity by unloading on bank of compressor cylinders when activated by the capacity
selector switch (except 37 ton unit). All control circuitry shall be factory installed and connected.
3.0 EXECUTION
3.1 INSTALLATION OF CHILLER UNIT
3.1.1 General
Install unit in accordance with manufacturer’s installation instructions. Install unit plumb and level,
firmly anchored in location indicated, and maintain manufacturer’s recommended clearances.
3.1.2 Electrical Wiring
Install and connect electrical devices furnished by manufacturer but not specified to be factory mounted.
Furnish copy of manufacturer’s electrical connection diagram submittal to the electrical contractor.
3.1.3 Piping Connections
Install and connect devices furnished by the manufacturer but not specified to be factory mounted.
Furnish a copy of manufacturer’s piping connection diagram submittal to the piping contractor.
3.2 FIELD QUALITY CONTROL
3.2.1 Start up
Start up air conditioning unit in accordance with manufacturer’s start up instructions. Test controls and
demonstrate compliance with requirements.
Included in tech data SL-11700 (R11/97)
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