supply of unitary air conditioner ( window ac ) , suitable for rated cooling capacity for the whole range of 3501 to 5200 w ( 1.5 ton ) , with the function of cooling only, with rotary compressor, inverter ( variable speed ) type, suitable for operation in 230v ac, 50hz system, with 100% copper coil, eco friendly refrigerant. conforming to bis specification no. is:1391 ( part-1 ) 2017 ( reaffirmed 2022 ) with latest amendments. bee star rating: 5 complying to ministry of power notification no. s.o. 3897 ( e ) dated 29th october 2019 for table 3.1 ( f ) with minimum indian seasonal energy efficiency ratio of 3.5 ( applicability date extended by notifications no. s.o. 4485 ( e ) dated 10th december, 2020 and no. s.o. 4634 ( e ) dated 10th november, 2021 ) . complying to ministry of power notification no. s.o. 2528 ( e ) dated 8th august 2017 for other requirements. [ warranty period: 12 months after the date of delivery ]