Which statement is true about replacements for R22 refrigerant?

• A. There are no replacements for R22 refrigerant.
• B. There are replacements for R22 refrigerant.
• C. R22 cannot be replaced in any system.
• D. Replacement refrigerants are available only for air conditioning systems.

Answer: (B)

There are replacement refrigerants available for R22. R22 is being phased out due to its ozone depletion potential, so alternatives have been developed for use in many systems, either through retrofit or in new equipment. Common options include substitutes like R-407C and R-410A, among others. Whether a system can use a replacement depends on compatibility with lubricants, oils, seals, and overall design, so some retrofits are feasible while others may require replacing the equipment. This is why the statement is true: there are replacements for R22, not none, not that it’s impossible to replace in any system, and not that replacements are limited only to air conditioning—because replacements are used in a variety of HVAC and related systems.