repairing and maintenance of air handling unit and ducting repairing and maintenance of air handling unit and ducting , repaining & maintenance of air handing unit and ducting ( arc 2022-23 ) , supply & erecting of air filter box type micro v filter 24x20x2 thick, micron - 10 micron, outer casing g.i. guage 20, media - 3 ply hdpe washable synthetic media with epoxy hardner and 4 mm supporting rods folds -9 , installation of air filters by replacing old , evaporative cooling pad - flute height 7 mm, size 72x24x8 thick 98% saturation , installation of honey pad by replacing old , cheking the existing ahu having motor capacity upto 20 hp & repairing by providing necessary material ( motor & fan frame / foundation ) alignment & blower frame work with material , supply & repair of water circulation system with necessary material ( valve, pipe, etc. ) , supply & installation of v belt ( a 95, a 92 etc. ) , supply & installation of fan pully , supply & installation of motor pully , supply & installation of site fabricated 24 gauge duct in g.i. construction with supports, normal c-channel, threaded rod, nut bolt fastner make:- tata / jindal / sail , supply & installation of adhesive thermal insulation for supply air duct with 19mm nitrile rubber insulation having a r-value as per smacna std. , supply & erecting of pvc pipe 32 mm , supply & erecting of floate valve , supply & erecting of water pump for air washers , supply & erecting of drain tray ss.316 , supply & erecting of air washers inside - epoxy paint