tender for supply installation testing commissioning of ac machines at the office of drdc, 7th floor, new treasury building, south 24 parganas.- ---supply installation testing commissioning of ac machines- 1 supply, installation, testing & commissioningof (13.19-14 kw) floor standing tower type room air conditoiner (cooling only) having the following specification & features.:a) cooling capacity nominal (btu /hr): 45000 (min)b) star rating -na c) rated voltage-415 v + / -5%, frequency -50 hz (3 ph)d) compressor type- scrolle) indoor air flow (high/medium/low)-1035/935/835 cfmf) refrigrant: r-410ag) cordless remote arrangement with all modernized provision of temperature setting , fan speed option ( low. medium /high ) auto swing (make :- daikin, model-fvrn125axv16(indoor), rp125dgxy16(outdoor) or equivalent model of mitsibushi heavy electric .) 2 charges for scaffolding arrangement upto 7th floorincl. lifting, shifting for outdoor & indoor units offloor standing air conditioner machine. 3 supplying, fabrication & fixingm.s u-channel of 6 mm thick of size (75 mm x 40 mm x 40 mm) for making platform for installation of outdoor unit of tower ac incl. drilling 2 nos holesin each channel including cutting holes into the wall & grouting the same with cement concrete (1:1 ½ :3) etc. fabricated with horizontal angle of 25 mm x 25 mm x 6 mm including supporting angle 50 mm x50mm x 6 mmin each platform. the platform should be fabricated so as to be safe for odu maintenance in outer edge for transmitting the load centrally through 2 nos. (50 mm x 50 mm x 6 mm) angle of 2 mtr. length eachinserted into the exiting wall. area of the platform is1.5mtr. x 1.2mtr. or as per machine configuration & load with adequate service access as per direction of eic. 4 sitc including vaccumiazation and nitrogen of testing of following nominal size of soft/hard drawn copper refrigerent piping for package rac system, complete with fittings, with adjustable ring type hanger supports, jointing/brazing includingaccessories, insulated with xlpe class -o tubular insulation/withclass-o closed cell elastometric nitrile rubber tubular sleevessections of specified thickness as given below for suction andliquid lines, all accessories as per specification etc. as required. 5 a) (15.88 mm.) dia (soft drawn) cu. pipes (as per standardbs864 or ansib 16.22) mm incl. 19mm thick insulation. (make:- approved by eic) 6 b) (9.52 mm) dia (soft drawn) cu. pipes(as per standard bs864or ansib 16.22) incl. 19mm thick insulation.(make:- approved by eic) 7 supply & drawing 3 core 4 sq. mm. p.v.c. insulatedflexible cu cable with appropriate size copper lag for connection of indoor & outdoor unit as per direction of eic. (make-polycab/kei/rr kebel/gloster/mescab) 8 supply & laying of drain water piping work out of pvc / hdpe hard pipes of 25 mm sizes incl. fitting, accessories, bends, elbows, tees, cutting the floor by expert labour & mending good the damages as per direction of e.i.c ( brand approved by e.i.c) 9 cutting of window grill by suitable arrangement,refixing of the same with suitable size hinges by welding arrangement, providing locking arrangement, paintingincluding hiring of welding set. the openable portion of window to be made in such a manner so that maintenance access is there including providing 7lever lock (mk- palam)