Why do you fill in gas every summer? I have acs which are 10 years old and i never filled gas in either of them! The service guys are taking you for a ride! Big ride. Todays Rotary compressors dont need gas charges every year,it might be once in 5 years or in case a leak is there.
many people are fooled by the cstomer telling them to fill gas for ac/s and fridges too in summers and take a hefty price for that...
had ogeneral ac's since 1997...no issues of gas..installation must be perfect be a very good skilled person...if you doubt do not allow him to install it as it will hurt a lot after that...
every 2-3 years only my split indoor unit is removed and "water washed in front of my eyes" to precent scratches and to prevent damage to the swings etc...only in my most used ac in bedroom...
do not buy star rated and go for inverter or a non-star rated...
how can a star rated give less power consumption than non-star??? does it have a special compressor? no... both are same
i assume the star rated have a capacitor crossed between inputs of wires{Phase and neutral} say of 1 kva i think
it helps in increasing the powerfactor which is not neessary for homes as we are billed in "kwh",
industries have peanlity for low power factor..they use"kva" meas power factorx kwh = kva
