tender for supply of 4x8.5 ton ducable ceiling mount air conditioning plants equipment , supply and installation of 28.60 mm copper pipes of 15 mtr length each with suitable insulating material from indoor unit of 8.5 ton ac plant to outdoor unit. , supply and installation of 15.88mm copper pipes of 15 mtr length each with suitable insulating material from indoor unit of 8.5 ton ac plant to outdoor unit. , supply of 10 sq. mm 4 core copper cables and wiring of equipment upto switch board. , supply of 1.5 sq.mm 8 core copper control cables and wiring of equipment upto switch board. , supply of 4 sqmm 4 core copper cables and wiring of equipment upto switch board. , supply of pvc conduit pipe and other required misc. hardware as per requirement , misc essential work for hanging the machine and proper level with 10mm full threaded g.i. rod includes minor repair work with material of wall and ceiling surface. , providing and fixing of ms stand of proper size suitable for the outdoor unit. the stand should be made up of 50mmx50mmx5mm mild steel. , supply of misc. items required for completion of installation such as nut bolts, rubber gasket, 35mm dia drain pipe with insulation approx 30mtr etc. , providing factory fabricated ducting material in 20 gauge gi sheet, for plenum chamber. , providing factory fabricated ducting material in 22 gauge gi sheet for supply duct , providing factory fabricated ducting material in 24gauge gi sheet for some portion of supply duct and return duct including jointing the different pieces of duct with suitable hardware and rubber , providing and fabricating the 9mm nitrile insulation work inside the supply duct and plenum chamber. acoustic insulation for plenum chamber and machine mouth open cell with 9mm nitrile insulation , providing and fabricating the 9mm nitrile insulation work inside the supply duct and plenum chamber. acoustic insulation for ducting closed cell 9mm nitrile insulation , providing and fixing of 475mm x 475mm canvas of reputed make in between the plenum and machines. , providing and fixing dampers of size 475mm x 475mm , providing, fabrication and fixing of powder coated aluminium grill for supply air , providing, fabrication and fixing of powder coated aluminium grill for return air , installation, testing and commissioning of 4x8.5 ton ductable air conditioning plants.