Replacement of Existing old AHUs with New one in Trauma Block at DDU Hospital, Hari, Nagar New Delhi

Supply and fixing of factory built floor mounted chilled water double skin type horizontal/vertical air handling units made of 25mm thick panels consisting of pre plasticized G.I. casing of thickness 0.8mm outside layer and 0.8 mm inside layer with polyurethane foam (PUF) insulation factory injected between them by injection moulding machine, complete with blower section with blower suitable for static pressure as required, minimum 2 bend GSS/PVC eliminators, cooling coil section with aluminum finned copper tubes (tubes thickness not less than 0.5mm) cooling coil of 6 row deep, as heating coil of 2 row deep, static pressure is 50 mm, filter section with 50mm thick metal viscous/ washable synthetic type air prefilters, belt drive package with TEFC drive motor of efficiency class IE3 suitable for 415 + 10% volts, 50Hz, 3 Phase AC supply suitably designed for variable frequency drive applications, drain connections, stainless steel 18G SS-304 with 12mm thick chemically cross-linked fire retardant Polyethylene foam (XLPE) insulation drain pan, 150 mm dia. dial type pressure gauges (2 nos.) and industrial type thermometers (2 nos.) at the inlet and outlet of coil, auto purge valve wherever required, necessary vibration isolation arrangement etc. complete as per specification and of following capacities i/c less credit of old dismantle material as wherebasis.

Supplying, laying/ fixing, testing and commissioning of following nominal sizes of chilled water piping plumbing inside the building (with necessary clamps, vibration isolators and fittings but excluding valves, strainers, gauges etc.) duly insulated with fire retardant quality expanded polystrene moulded pipe section of density 20 kg/cum after a thick coat of cold setting adhesive (CPRX compound) wrapping with 500g polythene faced hessain and finally applying 0.63mm aluminium sheet cladding complete with type3, grade 1 roofing feltstrip(as per 1S:1322 as amended up to date ) at joints repairing of damage to building etc. as per specifications and as required complete in all respect. Note:- The Pipes of sizes 150mm & below shall be M.S. 'C' class as per IS : 1239 and pipes size above 150mm shall be welded black steel pipe heavy class as per IS: 3589, from minimum 6.35mm thick M.S. Sheet for pipes upto 350 mm dia. and from minimum 7mm thick MS sheet for pipes of 400 mm dia and above.

32 mm dia (50mm thick insulation)

40mm dia. (50mm thick insulation)

50mm dia. (50mm thick insulation)

Supplying, fixing, testing and commissioning of following valves, strainers, gauges in the chilled water plumbing duly insulated to the same specifications as the connected piping and adequately supported as per specifications.

BUTTERFLY VALVE (MANUAL) with CI body SS Disc, Nitrile Rubber Seal & O- Ring PN 16 pressure rating for chilled water/hot eater circulation as specified.

40 mm dia.

50 mm dia.

BALANCING VALVE WITH BUILT IN MEASURING FACILITY with CI body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation & PN 16 pressure rating for chilled / hot water circulation as specified.

40 mm dia.

50 mm dia.

Y - STRAINER of Ductile Cl Body flanged ends with stainless steel strainer for chilled / hot water circulation including insulation as specified

40mm dia.

Supplying and fixing of acoustic lining of supply air duct and plenum with 25 mm thick resin bonded glass wool having density of 32 kg/m³, with 25 mm X 25 mm GI section of 1.25 mm thick, at 600 mm centre to centre covered with Reinforced Plastic tissue paper and 0.5 mm thick perforated aluminium sheet fixed to inside surface of ducts with cadmium plated nuts, bolts, stick pins, CPRX compound in confirmation to SMACNA/IS and as per specifications complete etc. as required

Inter connection in the existing chillers pipe line after dismantling the insulation, cutting the pipe line with the help of gas cutter, making the pipe suitable for connection duly welded, primer and insulated with poly sty rime insulation piece covered with murgajali and two layer of cement plaster of 6mm thick, two or more coats of synthetic enamel paint of approved make and colour complete etc as reqd.

Supply, fabrication, installation and testing of double canvas (fire retardant cloth) flexible connection between the duct machine by providing 1025 x 1025 mm (NS) GI frame of 22 SWG fixing the double canvas with GI frame by revitting. Dismantling the old by opening of rusted nut bolt etc. as reqd.

Supplying, installation, balancing and commissioning of factory fabricated GSS sheet metal rectangular/ round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports, bends, transitions, reducers, end caps, collars etc as required complete in all respect in confirmation to IS : 655 and approved drawings and specifications of following sheet thickness complete as required

Thickness 0.80 mm sheet

Repairing of starter cum control panel of different capacity Pump/AHU's & other connected controls i/c cleaning, replacement of worn out lugs, thimbles, control wires, replacement of defective switch gears (cost of the switch gears shall be paid extra as per actual), testing etc. complete as reqd.

Supplying/Replacement of following Defective accessories in the existing chiller/condenser wet raiser pump stater i/c modification of the existing bus bar complete etc. as reqd. i/c less credit of old dismantle material as wherebasis.

Overload relay 14 - 23 Amp

MNX 32 with Front mounted addon aux. contact block

VSP D2 Phase Failure Relay (Auto / Manual / Remote Reset Adj. Unbalance, 2 CO Contact

LED type indicating light set for main incoming R-Y-B

Supplying and Laying of one number PVC insulated and PVC sheathed / XLPE Copper Conductor armoured power cable of 1.1 KV grade conf. to IS 7098 (Part-I)/ IS 1554 (Part-I) and ISI Marked only of following size on existing cable tray / surface including clamps, ties etc. as required.

4C x 10 Sq.mm.

4C x 16 Sq.mm.