tender for supply and installation of vrf ac 18 hp; 1 outdoor unitvariable refrigerant flow (vrf) air-cooled outdoor units suitable forcoolingand heating, having all hermetically sealed inverter type compressor(s) with r410a refrigerant, vibration isolators, with suitable foundation etc. complete as required. the unit shall deliver the rated capacity at ahri conditionsand work even at 52°c ambient temperature without tripping. the unit shall be suitable to work on 400v ± 10%, 3 phase, 50hz ac power supply. make- haier/toshiba/mitsubishi heavy duty/o-general 2 capacity - 18 hp (heating + cooling) 3 indoor unit- typevrf indoor unit equipped with washable synthetic media pre-filter, fan section with low noise fan/dynamically balanced blower, multispeed motor, coil section with dx copper coil, electronic expansion valve, outer cabinet, cordless remote control, drain pan, necessary accessories etc., suitable for operation on 230v±10%,50hz,single phase ac supply, complete as required.4-way cassette acunits (vrf) 4 capacity- 2.56 tr 5 wireless remote 6 y- joints (multikits) 7 refrigerant yjoint required for distribution of refrigerant in copper piping 8 copper piping supply, installation, testing and commissioning of high pressure interconnecting refrigerant pipe work for vrf system with (19mm / 13mm thick) closed cell elastomeric nitrile rubber tubular insulation between indoor & outdoor units as per specifications, all piping inside the room shall be properly supported on gi hangers and pvc sleeves shall be provided wherever pipe is crossing the wall. food grade nitrogen is to be used while making brazing joints. brazing rods shall be harris (imported) make to be used. 9 28.58 mm od 19 mm thick insulation (hard) 10 25.1 mm od 19 mm thick insulation (hard) 11 22.2 mm od 19 mm thick insulation (hard) 12 19.1 mm od 19 mm thick insulation(hard) 13 15.9 mm od 19 mm thick insulation (soft) 14 12.7 mm od 13 mm thick insulation (soft) 15 communication cable supply, installation, testing, termination and commissioning of control cum transimission wiring between indoor unit and outdoor unit in pvc conduits. (1.5 sq mm ) . 16 supply, installation, testing, termination and commissioning of control cum transimission wiring between indoor unit and out door unit in pvc conduits. (1.5 sq mm ) . 17 refrigerant gas (eco-friendly) 18 refrigerant gas charging (r 410 a) as per liquid line length in line with standard 19 drain pipe supply, installation, testing and commissioning of hard cpvc drain pipe (chlorinated polyvinyl chloride), suitable for 10 kg/cm2 water pressure including fittings such as elbow, socket, reducer, etc.insulated with 9 mm thick tubular nitrile insulation. 20 25 mm dia 21 32 mm dia