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RTHD-SVX01L-EN
Operating Principles
This section describes the overall operating principles of
the Optimus™ water chiller.
Figure 22. Thermal syphon system
Evaporator
L1
L3
L2
U
TR200
(Optional)
V
W
EXV 1
Load
Solenoid
Unload
Solenoid
Condenser
Oil Rich
Refrigerant
EXV 2
Oil Sump
Filter
Oil Sump
Vent
Ball
valve
Ball
valve
Check
valve
Filter
General
Optimus units are single-compressor water-cooled liquid
chillers. These units are equipped with unit-mounted
starter/control panels.
The basic components of an Optimus unit are:
• Unit-mounted panel containing Symbio™ 800 controller
and input/output LLIDs
• Helical-rotary compressor
• Evaporator
• Electronic expansion valve
• Water-cooled condenser with integral subcooler
• Oil supply system
• Oil cooler (application dependent)
• Related interconnecting piping
• AFD (optional)
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