If a household freezer contains R-22 we can retrofit it to operate on R-410A.

• A. Yes, retrofit to R410A
• B. No, it cannot be retrofitted
• C. Only with a new compressor
• D. Use R404A as replacement

Answer: (A)

Retrofitting means adapting the existing equipment to run on a different refrigerant, which isn’t just a simple switch. R-410A operates at higher pressures than R-22 and requires a different lubrication system (usually POE oil) and compatible components. If a household freezer originally charged with R-22 can be upgraded with parts rated for R-410A—typically a new compressor designed for R-410A, and possibly adjustments to the condenser, evaporator, seals, and oil—then the unit can operate on the new refrigerant. A licensed technician would perform the modifications to ensure the system is safe and reliable. That’s why this option is considered correct: retrofit is feasible with the right replacements and professional service. The other answers assume a simple swap or an outright impossibility, which isn’t accurate for a properly designed retrofit.