60 RTAC-SVX002A-EN
90 RTAC-SVX01F-EN
Operating Principles
Oil that gets past the oil separators flows through the condenser, subcooler and
expansion valve into the evaporator. This oil is collected in the pool of refrigerant that
is maintained in the bottom of the evaporator. A small amount of oil and refrigerant
from this pool (state 4b) is returned through a line that is connected to the
compressor down stream of the motor. This oil and refrigerant mixes with the
refrigerant vapor that was drawn out of the evaporator, prior to injection into the
compressor rotors.
Figure 35 RTAC Oil System
Operating Principles
Oil that gets past the oil separators ows through the condenser, subcooler and
expansion valve into the evaporator. This oil is collected in the pool of refrigerant
that is maintained in the bottom of the evaporator. A small amount of oil and
refrigerant from this pool (state 4b) is returned through a line that is connected to
the compressor down stream of the motor. This oil and refrigerant mixes with the
refrigerant vapor that was drawn out of the evaporator, prior to injection into the
compressor rotors.
Fig. V-03 – RTAC Oil System
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