Indian Institute Of Technology Tender

5/8" O.D. (21 SWG) - 13mm thick

3/4" O.D. (21 SWG) - 19mm thick

20 mm Dia.

Supplying & fixing of powder coated extruded aluminium Return Air Grills with louvers but without volume control dampers complete as required.

Supplying & fixing of powder coated extruded aluminium Supply Air Grills with aluminium volume control dampers as per specifications.

Supply,installation,testing and commissioning on the exisiting wall / cable tray/ surface / ceiling / in the exisiting shaft refrigerant hard Drawn copper piping insulated with closed cell elastometric nitrile rubber 'class O' insulation & supports, joints sealed with black cotton tape & other accessories complete with twin core flexible control cable of approved make & size.The rate shall includes topping up referigerant for complete system having total refrigerant piping length etc. as required.

Supplying and installing following size of perforated pre-painted M.S cable tray with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with M.S suspended including bolts & nuts, painting suspenders etc as required. a) 300 mm width X 50 mm depth X 1.6 mm thickness

Providing and Fixing Sun Conrol Film ( HSN -39199090 ) in the Windows and Door Glasses

Supply, installation, testing and commissioning of outdoor unit terrace mounted, top discharge type factory assembled, pressure tested, refrigerant charged, weather proof M.S casing & coated with baked enamel finish, with Heat exchanger, copper condenser, condenser fan etc., as per manufacturer's standard design.The unit shall be mounted on vibration isolators. The unit shall be completely factory wired, tested with all necessary controls. The unit shall be suitable to operate on 3 Phase, 415 +/- 10 % Volts, 50Hz +/- 3 %, AC power supply. The Outdoor unit shall have minimal 02 nos. of inverter control twin rotory/scroll compressors and shall be able to operate even incase of breakdown of one of compressor, the unit shall be provided with its own micro processor control panel & electrical compartment with all necessary electrical & control components. The rate shall inculde topping up referigerent for complete system having total refrigerent piping etc. The units shall be BMS compatible. 12 HP (114000Btu/Hr. or higher)

Supply, installation, testing and commissioning of Ceiling suspended Ductable concealed type low static indoor Units with cooling coil, electronic expansion valve, multi speed fan motor, corded remote control, dynamically balanced blower designed for silent operation, washable synthetic media filter, drain tray, Drain Pump wiring with suitable size copper conductor FRLS low smoke single core cable from nearest socket outlet, suitable for operation on 220 V +/- 10%, 50 Hz +/- 3%, 1 Phase supply for AC power supply complete as per specifications etc. as required.

5/8" O.D. (21 SWG) - 19mm thick

1-3/8" O.D. (18 SWG) - 25mm thick

5/8" O.D. (21 SWG) - 13mm thick

Supply, installation, balancing and commissioning of factory fabricated 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.

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

Supply and fixing of acoustic lining inside sheet metal ducts using 140-180 kg/m3 Approved Make with Microban, having thickness specified below, conforming to Class 1 - BS 476 applied with Approved make adhesive (having less then max. permissibleVoC content as per GRIHA/Green Rating System) as specified with15 mm thick Acoustic lining with Microban; Duct acoustic lining should be done while the ducts are still on floor, not after installing ducts in position

Supply, installation, testing and commissioning of floor mounted type VRV / VRF air conditioning system including following indoor & outdoor units, refrigerant piping, Multiconnection Kit/refnet connections, individual controller, first charge of 410A refrigerant. The system shall be able to work on cooling only.

2.10 TR (Minimum Capacity)

3/8" O.D. (21 SWG) - 13mm thick

Supplying & fixing on existing CC foundation / terrace of M. S. supporting structure made of MS chanels & MS angles etc for installing VRF outdoor units duly epoxy coated / galvanized etc as required.

7/8" O.D. (21 SWG) - 19mm thick

1-3/8" O.D. (18 SWG) - 25mm thick

15 mm THK

CIVIL WORK 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 : Note :- False ceiling Iitem will be operated as Box Section in which frame work will be made in L-Shape with 2.00 meter width at bottom and height 1.5 meter . Ceiling proposed is to hide air conditioning indoor units . False ceiling frame work will be supported on RCC Ceiling on top and walls on side. Making technically suitable and stable arrangement is deeemed to be included in the rate quoted by contractor.

24 Gauge ( 0.63 mm )

32 mm Dia.

Supplying & installation of rigid ISI marked PVC drain piping of 6Kg / Sq. cm. of pressure rating of following sizes for the units as per specifications including all accessories like bends, tees etc. and duly insulated with 13mm thick insulation with tubular type elastomtric nitrile rubber complete etc. as required.

Supply,installation,testing and commissioning on the exisiting wall / cable tray/ surface / ceiling / in the exisiting shaft refrigerant Hard Drawn condition copper piping insulated with closed cell elastometric nitrile rubber 'class O' insulation & supports, joints sealed with black cotton tape & other accessories, exposed piping shall be properly covered with UV treated cloth (7 mil thickness and 200 gsm weight, with factory laminated self-adhesive backing) and 2 coats of UV painting. The rate shall be includes topping up referigerant for complete system having total refrigerant piping length etc. as required.

Providing and fixing PVC frosted glass film having 0.10 mm thickness and 75 % opacity with self - adhesive property .All as per approved sample abd as directed by Engineer In Charge