Introduction
1.0INTRODUCTION
1.1System Description
Liebert Deluxe environmental control systems are available in several configurations. Each configu- ration can operate with either Advanced Microprocessor Controls (AM), or Advanced Microprocessor Controls with Graphics (AG). A brief description of each, including operational differences, are listed below. Check model numbers to see what is supplied with your unit.
1.1.1Compressorized Two-Step Systems
These systems may be air, water, or glycol cooled - depending on the heat rejection method selected.
Cooling
Two stages of mechanical refrigeration
Heating
Three stages of electric reheat standard; steam/hot water, hot gas on water and
Humidification
Infrared standard, steam grid and steam generating optional
Dehumidification
Utilizes the lag compressor
1.1.2Compressorized Four-Step Systems
The
Cooling
Four stages of mechanical refrigeration:
1.Lead compressor at reduced capacity.
2.Lead and lag compressors at reduced capacity.
3.Lead compressor at full capacity; lag compressor at reduced capacity.
4.Lead and lag compressors at full capacity.
Heating
Three stages of electric reheat standard; hot water/steam optional
Humidification
Infrared standard, steam grid and steam generating optional
Dehumidification
Utilizes the lag compressor
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