corrigendum tender for supply installation testing and comissioning of vrf , supply installation testing and comissioning of indoor unit , supply installation testing and comissioning of joints , supply of cables , supply installation testing and comissioning of switch boxes , supply installation testing and comissioning of copper pipes , drain pipe , refrigerant , material shifting , supply installation of cable tray , core cutting , s i of distribution box , laying of cable , termination of cable , dismantelling , pop gypsum work, casset ac installation for rtamc, supplying, installation, testing & commissioning of variable refrigerant flow/variable refrigerant volume air cooled outdoor units alongwith outdoor stand as per ts for cooling --10hp, supplying, installation, testing and commissioning of following minimum capacity 4 way cassette type indoor ceiling mounted unit including wireless remote as per ts (make will be same as of outdoor)--3.2 tr, supplying, installation, testing and commissioning of y/t/multi joints. joints shall be of same original equipment manufacturer (oem) make as of odus and idus, supply of 3c x 2.5sqmm flexible cable for idu power, supplying, installation, testing and commissioning of 5amps switch box (5a switch+5a socket on 3 module box), supply of 4c x 16sqmm pvc/xlpe armoured copper cable, supply & installation/laying of copper pipe for refrigerant with insulation and support etc., as required, supply & laying of 2 core 1.0-1.5 sqmm communication cable between idu and odu inside rigid/flexible pvc conduit wherever required, supply & fixing cpvc drain pipe 25/32mm with supports as per site conditions, supply and topping up refrigerant r410a/r32 as applicable (if required), lifting & shifting of 01 nos odu with crane/manually to site as per direction of eic with complete safety, supply & installation/laying of 100/200mm cable tray with closure as per site conditions with complete safety, core cutting works as per site condition, supply and installation of ip-65/66 stainless steel (304 grade) or powder-coated galvanized steel outdoor distribution box of appropriate size (should be spacious) near odu with 63a - 2 nos mcb and accessories (ie lugs cable tie wires screws bn etc), laying of one number pvc insulated and pvc sheathed / xlpe power cable of 1.1 kv grade offollowing size in the existing masonry open/close duct as required.-upto 35 sq. mm, laying and fixing of one number pvc insulated and pvc sheathed / xlpe power cable of 1.1 kv grade of following size on wall surface as required. -upto 35 sq. mm (clamped with 1mm thick saddle), supplying and making end termination with brass/aluminium compression gland and copper lugs for following size of pvc insulated and pvc sheathed / xlpe copper conductor cable of 1.1 kv grade as required.--4 x 16 sq. mm (28mm), service charges for dismantling handing over of an existing cassette idu(samsung make) - 1.2 or 1.3tr(pump down pressure testing refilling of gas), dismantling/cutting out of existing pop/gypsum ceiling and shifting the debris outside powergrid campus, supply and installation of pop/gypsum work includes gypsum board, pop powder, putty and paint etc., (for making ceiling as per its earlier form)