I have two Voltas window AC’s so I never wavered when I needed a 3rd ac for my dental clinic.I purchased a 1 ton split 5 star rated AC one and a half years ago, I had recurrent complaints of machine cooling for exactly 45 mins and then there was wait thereafter the machine would start again.
Each time I got the complaint serviced the service guys would blow dry the machine and charge me. Finally, the duration increased and the machine stopped. The Voltas guy refused to get the machine down , I finally got it serviced from private service provider.
How much it will work is yet to be ascertained. Service is a huge problem with Voltas AC’s, so buy at your own risk and time....