supply of supply of items as per schedule of requirementssupply of items as per schedule of requirements,supply and laying of copper refrigerant pipe of size 0.5 inch (od) complete with nitrile rubber insulation tubes of suitable thickness for thermal protection, including wrapping with non-adhesive insulatio n tape for additional covering and protection. the work includes all necessary fittings, bends, supports, cla mping, and accessories required for proper routing between indoor and outdoor units of the split air conditi oner, as per standard practice and manufacturer?s recommendations. [ warranty period: 30 months afte r the date of delivery ] ] , supply and laying of copper pipe of size 0.25 inch (od) complete with nitrile rubber insulatio n tubes for thermal protection and non-adhesive insulation tape for wrapping of copper pipe. the work incl udes all necessary fittings, bends, supports, and clamping as required for proper connection between indoo r and outdoor units of split air conditioners. [ warranty period: 30 months after the date of delivery ] ] , supply and laying of water drain pipe from indoor unit to outside of the coach, including prop er routing, saddling, and clipping for firm support. the work shall include all necessary fittings, bends, joints , and accessories required for smooth water drainage without leakage. complete with all labour, materials, and tools for a neat and durable installation. [ warranty period: 30 months after the date of delivery ] ] , cost of installation, testing, and commissioning of split air conditioner units including proper drilling of coach sheets for refrigerant pipe, drain, and cable routing; making suitable holes inside the coach for indoor and outdoor unit connections; mounting of indoor and outdoor units at suitable locations with pro per alignment and supports; connection of refrigerant and drain pipes; electrical wiring with suitable cable and plug; and proper finishing of all openings and surfaces after inst