Repair vs. replace Carrier AQ38/40RR

[hawaii]

I have an old 6-ton commercial Carrier heat-pump AC system, 38AQ-40RR.

The evaporator coil just bit the dust. We're looking to replace it, but it's a major operation just to get to the air-handling unit itself due to its location above a ceiling grid. Since we're going in anway, we're thinking ot replacing the whole air-handler unit instead of just the coil. It uses R22.

* Can we replace just the inside unit with an r410a indoor air handler but still keep the same old rooftop unit?

[guy597]

Replace the whole thing it will be more cost effective in the long run.

[stone-cold99]

Replace for sure

[merlin73]

replace it but make sure that they change the 410-aTXV to a R-22 TXV, be sure to have a pro perform the work.