Tender For tender for supply of supply of vrf ivrf inverter type air conditioning system , indoor units with all supporting materials for hanging and fixing for existing duct. a 6tr ducted indoor , b 8tr ducted indoor , c corded remotes , d cordless remotes , installation nitrogen pressure testing vaccumising and commissioning of vrf ivrf inverter type odu units , installation charges for ducted indoor units , supply and laying of hard drawn copper refrigerant piping with elbows couplings reducer and slotted supports for suction and discharge line , supply and fixing of 19mm and 13mm thick nitrile rubber insulation for above copper pipe and ppe covering with fire retardant tape , refrigerant gas charging r410a , lifting shifting and erection of ivrf outdoor units , communication cable for idu to odu , drain pipe cpvc with insulation , ms channel stand for odu units , dismantling charges for existing indoor units , dismantling charges for existing outdoor units , canvas fire proof for connection between indoor and cool air duct connection