tender for supply, installation, testing n commissioning of aereating system in metro subway a ward.=- 1 exhaust air fan, 2000 cfm, 20 mm sp wg with ec motor. 2 carbondioxide monitoring transmissionand controlling device. 3 fresh air fan, 10000 cfm, 30 mm sp wg with ec motor 4 fresh air fan, 6000 cfm, 30 mm sp wg with ec motor 5 gss ducting:- supplying fabrication installation testing and commissioning of gi. sheet metal ducting. zinc coated. complete with all standard accessories, g.i.. hardware, self adhesive elastomeric foam gasket, support etc as per smacna specification. gss ducting:- 24 swg 6 mold and fungal removal system 7 providing aluminium supply air diffusers & return air grills with volume control dampers 8 providing fresh air damper with crowl piece,bird screen and removable type prefilters 9 1st category cu armoured cables frlsz outer sheathed- 3c x 2.5 sq.mm 10 1st category cu armoured cables frls outer sheathed-2c x 1.5sq.mm 11 csmc 5% for 2nd year after completing 1 year dlp. 12 csmc 5% for 3rdyear