short dated tender - bids are invited for supply of air cooled ducted 16.5 tr ac unit , supply of air cooled ducted 5 tr ac unit , unloading lifting and shifting of 16.5 tr ducted package ac unit at site , unloading lifting and shifting of 5 tr ducted package ac unit at site , installation n2 pressure testing vacummising and commissioning of 16.5 tr ac , installation n2 pressure testing vacummising and commissioning of 5 tr ac , supply and charging of r 410 gas , supply and inst of floor mounted ms stand fabricated out of ms channel , supply and inst of floor mounted ms stand fabricated out of ms angel , hard copper refrigerant piping between indoor and outdoor units , supply and installation of gss ducting as 24g , supply and installation of gss ducting as 22g , acoustic insulation of plenum initial ducting with 10mm thick armasound , supply and fixing of 13mm thick nitrile rubber al foil faced insulation class i , supply and installation of ai powered jet nozzles with volume control d er , supply and inst of ai powered return air grills without volume control d ers , supply and installation of gi opposed blade duct d ers, qty 1.5 sqmtr , supply and fixing of canvas connection , supply and laying of 32mm dia pvc drain piping , electrical cabling 6 c x 1.5 sqmm cu flexible , electrical cabling 3 c x 1.5 sqmm cu flexible , electrical cabling 1 sqmm cu flexible double earthing