REPLACEMENT OF EXISTING OLD DAMAGED CHILLED WATER PIPELINE WITH NEW PIPELINE REPLACEMENT OF FALSE CEILING AND ITS INTER RELATED WORKS

PART "A" FOR CHILLED WATER PIPE LINES

INSULATED CHILLED WATER PIPING ( NITRILE RUBBER INSULATION)

Supply, laying/fixing, testing and commissioning of following nominal size of chilled water piping inside the building with necessary clamps, vibration isolators and fittings but excluding valves, strainers, gauges etc duly insulated with the following closed cell elastrometric nitrile rubber of minimum 45kg/cu density thermal conductvity 0.037 W/MK or better at 20Deg. C mean temperature class " O " insulation applied suitable adhisive complete including repairing of damage to the building etc., as per application and as required complete in all respect. Note: The pipes of sizes 150 mm & below shall be MS '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 MS Sheet for pipes upto 350mm dia and from minimum 7mm thick MS sheet for pipes of 400 mm dia and above. (Supply+Return)

50 mm dia ( 32 mm thick insulation)

40 mm dia ( 32 mm thick insulation)

25mm dia ( 19mm thick insulation)

Supply,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 water circulation as specified.50MM DIA

Supply, Installation,,Testing & Commissioning of following sizes electronics self balancing pressure independent type dyanamic balancing valve with integrated 2 way modulating control valve in a single body. The actuator shall be capable of accepting upto 10V/DC/6VA and up to 20mA electric single and shall provide similar transduced feed back/ thermostat control system. Maximum close off pressure shall not be less than 6 Bar upto 50mm valves and 7 bar for 65mm & above valves should have pressure rating of 25bar minimum. 20mm dia.

Ductable Fan Coil Units ( FCUs): Supply,Installation,Testing & Commissioning of Ceiling Concealed Fan Coil Units comprising of 3 row deep chilled water cooling coil, centrifugal blowers, fractional horse power (FHP)motor, synthetic fiber filters, insulated & exended condensate drain pan along with L- type auxillary tray, casing, coil piping, connections, condensate, drain piping connections & wiring. Fan Coil Units shall be suitable for operation on 220+ / - 6% Volts, 50 Hz, single phase power supply of 2.0TR Nominal capacity with 800 cfm air quality, complete as per site requirement and directions/instructions of the Engineer-in-Charge.

Dismantling and removel of old existing 2" and 1" MS CHW Pipeline of Library and Admin areas that connected to main CHW sources of the location. Along with its insulation and all other supports, shifting the same to the scrap area within Campus as per the directions of the Engineer-in-Charge.

Dismantling and removel of old existing FCU s of 2TR Capacity along with their connections to CHW line including its insulations, valves,, motorised valve, drain tray with controller and its old wiring to install new controller in the same location, shiftng the removed materials to the scrap area as per the directions of the Engineer-in-Charge.

PART "B" FOR CIVIL WORK

Dismantling aluminium / Gypsum partitions , doors , windows , fixed glazing and false ceiling including disposal of unserviceable material and stacking of serviceable material within 50 meters lead as directed by Engineer-in-charge.

Providing and fixing false ceiling at all height including providing and fixing of frame work made of special sections, power pressed from M.S. sheets and galvanized with zinc coating of 120 gms/sqm (both side inclusive) as per IS : 277 and consisting of angle cleats of size 25 mm wide x 1.6 mm thick with flanges of 27 mm and 37mm, at 1200 mm centre to centre, one flange fixed to the ceiling with dash fastener 12.5 mm dia x 50mm long with 6mm dia bolts, other flange of cleat fixed to the angle hangers of 25x10x0.50 mm of required length with nuts & bolts of required size and other end of angle hanger fixed with intermediate G.I. channels 45x15x0.9 mm running at the spacing of 1200 mm centre to centre, to which the ceiling section 0.5 mm thick bottom wedge of 80 mm with tapered flanges of 26 mm each having lips of 10.5 mm, at 450 mm centre to centre, shall be fixed in a direction perpendicular to G.I. intermediate channel with connecting clips made out of 2.64 mm dia x 230 mm long G.I. wire at every junction, including fixing perimeter channels 0.5 mm thick 27 mm high having flanges of 20 mm and 30 mm long, the perimeter of ceiling fixed to wall/partition with the help of rawl plugs at 450 mm centre, with 25mm long dry wall screws @ 230 mm interval, including fixing of gypsum board to ceiling section and perimeter channel with the help of dry wall screws of size 3.5 x 25 mm at 230 mm c/c, including jointing and finishing to a flush finish of tapered and square edges of the board with recommended jointing compound , jointing tapes , finishing with jointing compound in 3 layers covering upto 150 mm on both sides of joint and two coats of primer suitable for board, all as per manufacturer's specification and also including the cost of making openings for light fittings, grills, diffusers, cutouts made with frame of perimeter channels suitably fixed, all complete as per drawings, specification and direction of the Engineer in Charge but excluding the cost of painting with

12.5 mm thick tapered edge gypsum plain board conforming to IS: 2095- (Part I) :2011 (Board with BIS certification marks)

Providing and fixing tiled false ceiling of specified materials of size 595x595 mm in true horizontal level, suspended on inter locking metal grid of hot dipped galvanized steel sections ( galvanized @ 120 grams/ sqm, both side inclusive) consisting of main "T" runner with suitably spaced joints to get required length and of size 24x38 mm made from 0.30 mm thick (minimum) sheet, spaced at 1200 mm center to center and cross "T" of size 24x25 mm made of 0.30 mm thick (minimum) sheet, 1200 mm long spaced between main "T" at 600 mm center to center to form a grid of 1200x600 mm and secondary cross "T" of length 600 mm and size 24x25 mm made of 0.30 mm thick (minimum) sheet to be interlocked at middle of the 1200x600 mm panel to form grids of 600x600 mm and wall angle of size 24x24x0.3 mm and laying false ceiling tiles of approved texture in the grid including, required cutting/making, opening for services like diffusers, grills, light fittings, fixtures, smoke detectors etc. Main "T" runners to be suspended from ceiling using GI slotted cleats of size 27 x 37 x 25 x1.6 mm fixed to ceiling with 12.5 mm dia and 50 mm long dash fasteners, 4 mm GI adjustable rods with galvanised butterfly level clips of size 85 x 30 x 0.8 mm spaced at 1200 mm center to center along main T, bottom exposed width of 24 mm of all T-sections shall be pre-painted with polyester paint, all complete for all heights as per specifications, drawings and as directed by Engineer-in-charge.

12.5 mm thick square edge PVC Laminated Gypsum Tile of size 595x595 mm, made of Gypsum plasterboard, manufactured from natural gypsum as per IS 2095 part I and laminated with white 0.16mm thick fire retardant PVC film on the face side and 12micron metalized polyester on the back side with all edges sealed with the face side PVC film which goes around and wraps the edges and is bonded to the edges and the back side metalized polyester film so as to make the tile a completely sealed unit

Providing and applying plaster of paris putty of 2mm thickness over plastered surface to prepared the surface even and smooth complete. [ BIRLA PUTTY ]

Applying priming coat with primer of approved brand and manufacture, having low VOC ( Volatile Organic Compound ) content with water thinnable cement primer on wall surface having VOC content leass than 50 grams / litre .

Wall painting with premium arcrylic emulsion paint of interior grade , having VOC ( Volatile Organic Compound ) content less than 50 grams / litre of approved brand and manufacture , including additional coats where required to achive even shade and colour. Two coats

Disposal of building rubbish / malba / similar unserviceable , dismantled or waste materials by mechanical means , including loading , transporting , unloading to approved muncipal dumping ground or as approved by Engineeriin-charge , be yound 50 m initial lead , for all leads including all lift involved. [ Disposal of rubbish/ malba inside CCMB SQ low level area i/c levelling etc. complete.]