This AC supports voltage fluctuation from 170 to 270 volts. If the voltage fluctuates beyond this range then stabilizer is needed. In my area voltage fluctuates a lot. So, stablizer is required.
Thanks Bro. I already registered the product and got the confirmation E-mail. Tomorrow I'll call CC and ask the warranty status.
So, I should get ( 1 + 4 year extended) warranty on the whole product. Great