IOM 1322 • WATER-COOLED SCROLL COMPRESSOR 44 www.DaikinApplied.com
The chiller units have two refrigerant circuits, Models WGZ 030 to WGZ 130 have two tandem scroll compressors (total of four), a
single two-circuited brazed plate evaporator, a single two-circuited watercooled condenser, interconnecting refrigerant piping and a
control panel with associated sensors and transducers.
Models WGZ 150 to WGZ 200 have two refrigerant circuits, two trio scroll compressors (total of six), a single two-circuited shell-
and-tube evaporator, a single two circuited water-cooled condenser, interconnecting refrigerant piping and a control panel with
associated sensors and transducers.
Figure 31: Schematic Piping Diagram (One of Two Circuits for WGZ030D – 130D)
NOTE: WGZ 150 to WGZ 200 have a shell-and-tube evaporator, three compressors per circuit, and electronic expansion valves.
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