HVAC Duct cleaning work of Hospital building and medical college at AIIMS Bhopal.

HVAC Duct Cleaning of inside Surface of Supply/Return Air Ducts by NADCA Certified duct Cleaning Agency. The Scope of Work includes giving/showing Inspection of Dust before and After Cleaning of Duct using Color Photographs and Video Inspection. Removing all indoor air pollutants within the mechanical air ventilation system utilising robotics technology. Equipment to be used in this System as under :- 1. Rotary Brushes 2. Air Whips 3. Air Whips & Nozzles 4. Hepa Filters 5. Air Compressor 6. Combi Cleaner 7. Niblers 8. Vaccum Cleaners. etc. This system comprises of Mechanical Cleaning Method to remove Dust/impurities from HVAC Duct. Dust/Rubbish material Collected mechanically inside a box separetly after the passing of Filters and Collected rubbish shall be dispose manually after that Fumigation by appropriate & safe Chemical from Grill side to AHU Room side. After Completion Cleaning Certificate and Service Report along with CD which will Carry recording before and after or as per Direction by Engineer-in-charge.Fixing of Site fabricated GSS sheet metal rectangular ducting as per IS 655-2006 for 0.80 mm thick sheet (20 Gauge) fixing 50 mm thick aluminium foil faced resin bonded fibre glass insulation (on duct ) of density 24 kg/cu.m or mineral wool insulation of density 44 kg/cu m after applying two coats of cold setting adhesive (CPRX compound) sealing all joints with self adhesive aluminium tape & covering with 0.63mmx19mm GI wire mesh netting butting all joints and laced with GI wire complete as per specifications and as required. (for indoor applications).50 mm thick insulation fixing false ceiling at all height including providing & fixing of framework made of special section, power pressed from M.S. sheets and galvanised with zinc coating of 120 gms/ sqm (both side inclusive) as per IS : 277 and consisting of angle cleat of size 25mm wide x 1.6mm thick with flanges of 27mm and 37mm, at 1200mm c/c, one flange fixed to the ceiling with dash fastener 12.5mm dia x 50mm long with 6mm dia bolts, other flange of cleat fixed to the angle hangers of 25 x10 x0.50mm of required length with nuts & bolts of required size and other end of angle hanger fixed with intermediate G.I chanels 45 x15 x 0.90mm running at the spacing of 1200 mm c/c, to which the ceiling section 0.5mm thick bottom wedge of 80mm with tapered flanges of 26 mm each having lips of 10.5mm, at 450mm c/c, shall be fixed in a direction perpendicular to G.I intermediate channel with connecting clip made out of 2.64mm dia x 230mm long G.I wire at every junction, including fixing perimeter channels 0.50mm thick 27mm high having flanges of 20mm and 30mm long, the perimeter of ceiling fixed to wall/ partitions with the help of Rawl plugs at 450mm centre, with 25mm long dry wall screws @ 230mm interval, including fixing of Calcium Silicate Board to ceiling section and perimeter channels with the help of dry wall screws of size 3.5 x25mm at 230mm c/c, including jointing & finishing with jointing compounds in three layers covering up to 150mm on both sides of joints and two coats of primer suitable for boards, all as per manufacture's specification and also including the cost of making opening grills8 mm thick Calcium Silicate Board. 400 Micron PVC Sheet for Covering equipments i.e. placing , Covering inside OTs/ICUs/wards at the time of Duct Cleaning Work and disposal as per direction of Engineer-in-charge.