MAHLE RTI TX600 - Manual (Page 11)

RTI Technologies, Inc.
Page 10
HOW THE TX600 RECOVERS & RECYCLES REFRIGERANT
Following is a description of the purpose and performance characteristics of the components within
the TX600. The items are discussed in the order as seen by refrigerant as it flows through the unit
from the Inlet Port.
Refer to the Flow and Circuit Diagrams in the Appendix.
SUCTION ACCUMULATOR
Vapor and/or saturated liquid refrigerant from the vehicle A/C system enter the Suction Accumulator
from the Inlet.
Refrigerant, still in the liquid state, will expand and vaporize in the Suction Accumulator due to the
increase in volume.
The refrigerant changes direction of travel as it passes through the Suction Accumulator. Oil
droplets (with greater mass than the refrigerant vapor) are slung towards the container walls and
against an impingement plate where they collect and migrate to the bottom.
This oil is removed from the Suction Accumulator through the Oil Drain Valve.
The Low Pressure Switch, mounted on the Suction Accumulator, opens when the required vacuum
is detected. This stops the recycle process.
COMBO FILTER
Moisture and acid are removed by desiccant.
SUCTION SHUTDOWN SOLENOID (S-11)
Prevents migration of refrigerant to the Compressor when the TX600 is not operating.
SUCTION PRESSURE REGULATOR
Limits refrigerant flow, during high flow rate conditions, to maintain an even rate of refrigerant
processing.
This valve is set at the factory and is not adjustable.
CHECK VALVE (1 PSI)
The Check Valve permits forward refrigerant flow when the inlet pressure is 1 lb. or greater than
the outlet pressure. The primary purpose of this Check Valve is to prevent reverse flow of oil to the
Combo Filter during return of oil to the Compressor.