Which statement describes which systems use a Receiver Dryer?

Which statement describes which systems use a Receiver Dryer?

• A. Both TXV fixed displacement (CCTXV) and TXV variable displacement (VDTXV)
• B. TXV fixed displacement (CCTXV)
• C. TXV variable displacement (VDTXV)
• D. None of the above

Answer: (A)

A receiver-dryer is placed in the liquid line between the condenser and the expansion device to keep the refrigerant dry and clean. Its desiccant absorbs moisture and filters debris, protecting the expansion device and the evaporator from moisture-related issues, such as ice formation and acid buildup. This protective role is needed regardless of whether the TXV is fixed-displacement or variable-displacement, because both configurations rely on a clean, dry liquid entering the expansion device to function correctly. Therefore, both fixed-displacement TXV systems and variable-displacement TXV systems use a receiver-dryer.

A receiver-dryer is placed in the liquid line between the condenser and the expansion device to keep the refrigerant dry and clean. Its desiccant absorbs moisture and filters debris, protecting the expansion device and the evaporator from moisture-related issues, such as ice formation and acid buildup. This protective role is needed regardless of whether the TXV is fixed-displacement or variable-displacement, because both configurations rely on a clean, dry liquid entering the expansion device to function correctly. Therefore, both fixed-displacement TXV systems and variable-displacement TXV systems use a receiver-dryer.