First of all, Basement is not the recommended place to install the outdoor unit and it should be installed in open area.
the standard rate for copper pipe in the market is Rs.700 per meter but from last year the price of copper was increased so it can be upto Rs.800 per meter. The long piping can cause the leakage of gas from the joints after few years. In that case, it would be better to take an additional warranty for your AC.
The installation from the third party will void AC warranty and also If the installation of AC is not properly done then it can cause many problems in the future. So it should be installed by well experienced people or from the Voltas (in your case)
First of all, Basement is not the recommended place to install the outdoor unit and it should be installed in open area.
the standard rate for copper pipe in the market is Rs.700 per meter but from last year the price of copper was increased so it can be upto Rs.800 per meter. The long piping can cause the leakage of gas from the joints after few years. In that case, it would be better to take an additional warranty for your AC.
The installation from the third party will void AC warranty and also If the installation of AC is not properly done then it can cause many problems in the future. So it should be installed by well experienced people or from the Voltas (in your case)