bids are invited for boq total quantity : 1--supply of modular type variable refrigerant flow / variable refrigerant volume air cooled outdoor units suitable for cooling and eating, having all hermetically sealed inverter type scroll compressor ( s ) , minimum two compressors for above 14 hp modules, microprocessor based controller, top discharge type condensing unit ( s ) , with r 410 a refrigerant, vibration isolators, with suitable foundation etc. complete as required. the unit shall deliver the rated capacity at ahri conditions and work even at 50°c ambient temperature without tripping. the unit shall be suitable to work on 400v + / - 10%, 3 phase, 50hz ac power supply. the unit shall be filled with first charge of the refrigerant and ready for use as required. 1 ) outdoor unit ( odu ) of 18hp cooling capacity 2 nos , 2 ) sitcof 4.0 cassette 4 nos , 8tr ducted units 2 no with copper piping with insulation 190 mtr drain , comminication duct alteration canvass connection providing false for cassette area upto 400 sqft including commissioning and removing buy back of old 8 tr machine 2 nos as specified as per specification indor should motion sensor and pm 1.0 air purification filter etc.,