Public Works Department Tender

16.26.7:Supply, Installation, Testing and commissioning of factory built floor mounted chilled water double skin type horizontal / vertical air handling units made of 25 mm thick panels consisting of pre plasticized G.I casing of thickness 0.8 mm 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 aluminium finned copper tubes (tubes thickness not less than 0.5 mm ) cooling coil of 6 row deep, filter section with 50 mm thick metal viscous/ washable synthetic type air prefilters, belt drive package with TEFC drive motor suitable for 415 +/- 10% volts, 50 Hz, 3 Phase AC supply, drain connections, stainless steel (18 G) drain pan with PUF insulation, 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.Double skin AHU Units of 6 row cooling coil of 8000 CFM

OD344/2024-2025:Supply and providing following size hard drawn copper pipe for the extending the pipe between out door and in door unit including the pipe using rubberised form sleeve 10 mm thick, brazing, leak testing etc. 11/8 inch or nearest size, suitable for suction line copper refrigent pipe for 11/16.5/16 TR 22 gauge hard drawn copper pipe insulated using 10 mm thick rubber nitrite insulation

OD343/2024-2025:Supply and providing following size harddrawn copper pipe for the extending the pipe between out door and in door unit including the pipe using rubberised form sleeve 10 mm thick, brazing, leak testing etc. 5/8 inch or nearest size , suitable for liquidline copper refrigent pipe for 11/16/16.5TR 22 gauge hard drawn copper pipe insulated using 10 mm thick rubber nitrite insulation

16.12.2.2:Supply, Installation, balancing and commissioning of fabricated at site GSS sheet metal rectangular / round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports, etc as per approved drawings and specifications of following sheet thickness complete as required.Site fabricated GSS sheet metal rectangular ducting as per IS 655-2006 for 0.8. mm thick

16.12.2.3:Supply, Installation, balancing and commissioning of fabricated at site GSS sheet metal rectangular / round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports, etc as per approved drawings and specifications of following sheet thickness complete as required.Site fabricated GSS sheet metal rectangular ducting as per IS 655-2006 for 1.00 mm thick

16.15:Suppluying and Fixing of powder costed extruded aluminium Supply Air Grills with aluminium volume control dampers as per specifications.

16.16.a:Supplying and Fixing of powder coated extruded aluminium Return Air Grills with louvers but without volume control dampers complete as required.

OD350/2024-2025:Supply and filling of R-410 gas charging

OD355/2024-2025:Supply, installation, testing and commissioning of fresh air arrangements with VCD and cowl & bird screen and grille and 20 micron synthetic filter etc as required.

OD357/2024-2025:Supply, installation, testing and commissioning of extruded Aluminium volume control dampers complete with flanges channels and control levers suitable for duct mounting

OD139572/2024-2025:Supplying and fixing of following thickness duly laminated aluminium foil of mat finish closed cell Nitrile rubber class O insulation on existing duct after applying two coats of cold setting adhesive CPRX compound. The joints shall sealed with 50 mm wide and 3 mm thick self adhesive nitrile rubber tape insulation complete as per specifications and as required. Nitrile rubber insulation - 13 mm

OD139573/2024-2025:Supplying and fixing of following thickness open cell Nitrile rubber aquastic insulation inner side of the existing duct after applying two coats of cold setting adhesive CPRX compound. Nitrile rubber aquastic insulation - 13 mm

OD139664/2024-2025:Dismantling the existing GSS sheet metal rectangular / round ducting cleaning reconditioning and providing neoprene rubber gaskets, fixing it with new hangers, supports, thread rods etc as per approved drawings and specifications

OD414/2024-2025:Supply and installation of AHU Covering Isowall sandwich puff panelling with 50mm thick covered with 0.6 mm thick pre painted GI sheet with inspection opening for cleaning air filters service openings with provisions for canvas connections complete. Locking type, Density 40 kg/m3

OD526/2024-2025:Servicing of supply and return air grill of old duct

OD139666/2024-2025:Dismantling the existing defective Water cooled AHU 20 Tr and accessories including supply side starting plenam GSS duct after disconnecting all pipe lines , electrical connections etc. Dismantling the unit piece by piece, conveying and placing the same to suitable location etc as required.

OD139667/2024-2025:Dismantling the existing defective 17/20 Tr AC units and accessories after disconnecting Electrical connections etc. Dismantling the unit piece by piece, conveying and placing the same to suitable location etc as required.

OD347/2024-2025:Supply and fabrication conveyance and installation of angle iron frame work for mounting outdoor unit and indoor unit using suitable size MS angles/flats cut and welded to shape fixing the same on floor or wall/parapet as required including painting with two coats of enamel paint over a coat of zinc chromite primer

OD358/2024-2025:Supply and fixing 32 mm UPVC drain water pipe line with necessary, supports, saddles, clamps, hangers, and fittings such as bends, tees etc and shall the fixed on the wall with suitable size saddle and screw complete in surface/recess including cutting wall and making good the damages as required.

90.6.5.11:Supply and drawing the following sizes of multi-core PVC insulated & FRLS PVC sheathed 650/1100 V grade copper conductor round flexible cables conforming to IS 694 part I 1960 in the existing surface / recess conduit as required including giving necessary connections of the following sizes.3 core 1.50 sq mm

90.6.5.12:Supply and drawing the following sizes of multi-core PVC insulated & FRLS PVC sheathed 650/1100 V grade copper conductor round flexible cables conforming to IS 694 part I 1960 in the existing surface / recess conduit as required including giving necessary connections of the following sizes.3 core 2.50 sq mm

OD359/2024-2025:Charges for cutting the wall demolishing brickwork manually / by mechanical means including disposal of unserviceable material within 50 meters lead as per the direction .

14.11:Providing brick work (in width 225 mm or more) with F.P.S. bricks of class designation 7.5 in cement mortar 1:4 (1 cement : 4 coarse sand) at all levels.

14.12:Providing 15mm thick cement plaster of mix 1:4(1 cement: 4 fine sand) at all levels