Can 4 ton outside condenser unit work with inside air handler5 ton?

Yes, a 4-ton outside condenser unit can work with a 5-ton inside air handler, but it may not operate efficiently. The condenser's capacity is lower than the air handler's, which could lead to undercooling or insufficient dehumidification. It's generally best to match the capacities of the condenser and air handler for optimal performance and efficiency. Consulting an HVAC professional for proper sizing and compatibility is recommended.