Can I Use My 3 Zone Mini Split As A 2 Zone? - Ask The Expert Episode 317
Today's question is from Yuan,
"Dan, I have a 3 zone Gree mini split AC that is leaking coolant for the second time. I'm afraid that one of the air handlers has an internal leak. I'm thinking about closing one zone pipes to isolate the problem, or could be just downgraded to 2 zones and use it this summer? Can this be done as you mention with MRCOOL multi-zone 36K? Thank you for your help in advance!"
As long as you can safely operate it at the necessary capacity, then you should be fine.
Before you do anything, You should always check the manufacturer literature to find out.
If you aren't sure, you should always talk to a local professional.