supplying installation testing and commissioning of 9 nos 4 passenger 272 kg fully automatic passenger elevator of speed 0.63 mps with vvvf drive and ard system with battery backup at mouza raighachi action area iic new town kolkata 700156 , supply, installation, testing, commissoining of 4 passenger(272 kg),microprocessor based passenger cum service lift, ac v3f controlled elevator/lift with the following : i). capacity:- 272 kgii). speed:- 0.63 mtr./sec. iii). travel:- mtrs-15.0 mtrs ( approx)iv). stop & opening:- 5 stops 5 opening ( all on front sideas per architect sectional drawing ), v) floor served ; (g+4), vi). power supply:- 415 volts, 3 phase, 50 hz alternating current, variation as per i.s. vii). control:- microprocessor based ac with v3f control (with closed loop), viii) operation ; simplex collective (with auto/ attendent mode), ix). machine:- energy efficient machine unit suitable for 4 passenger lift without gear and with machine room .x). clear shaft dimension ( available ):- 1300 mm(d) x 1500 mm(w) xi). pit depth:- 1600 mm approx(existing),xii). car enclosure : ss 304 sheet with hairline finish with hand rail, xiii). car ceiling and lighting ; stainless steel withhairline finish with led light & fan. xiv) over travel:-4045 mm approx(existing), xv). indicator:- up & down indication arrows with standard digital display car floor position and call registration led indicator, xvi). car inside area:- 2000 mm height and area as per is code for 272 kg,xvii). car door:- ss 304 sheet centre opening automatic door provided without vision panel with v3f controlled door drive system. door should be minimum 120 minutes fire rated. xviii). landing doors:- ss 304 hairline finish centre opening automatic door provided without vision panel with v3f controlled door drive system, minimum 120 minutes fire ratedxix). clear door opening:- minimum 600 mm x 2000 mm height xviii). door detector systems:- full length photocell assembly light curtain sensorxx). overload prote