SITC of Treated Fresh Air Unit (TFA) for Gastro Surgery (MoT) at AIIMS Hospital, Bhubaneswar

Supply, Installation, testing and commissioning of TFA units.

Supply, Installation, testing and commissioning of Factory built ceiling suspended chilled water double skin type horizontal/vertical TFA units of 4000 CFM, 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 PVC eliminators, cooling coil section with aluminium finned copper tubes (tubes thickness not less than 0.5mm) cooling coil of 6 row deep, filter section with 50mm thick metal viscous/ washable synthetic type air prefilters, belt drive package with Totally Enclosed Fan Cooled (TEFC) drive motor of efficiency class IE3 suitable for 415 ± 10% volts, 50Hz, 3 Phase AC supply suitably designed for Variable Frequency Drive (VFD) applications, drain connections, stainless steel (18G) drain pan with PUF insulation, 150 mm dia. dial type pressure gauges (2 nos.)and industrial type thermometers (2 nos.) and industrial type thermometers (2 nos.) at the inlet and outlet of coil, auto purge valve wherever required, necessary vibration Isolation arrangement, noise level shall not exceed 70 dBA. AHU shall be AHRI/Eurovent certified, fan shall be AMCA certified etc. Complete as per CPWD specification/drawings and as directed by Engineer-in-Charge. (Total static pressure considered is max. 50 mm WC

Supplying, laying/ fixing, testing and commissioning of following nominal sizes of Chilled water piping inside the building (with necessary clamps, vibration isolators and fittings but excluding valves, strainers, gauges etc.) duly insulated with following closed cell elastometric nitrile rubber of minimum 45 Kg / cu m density, thermal conductivity 0.037 W/MK or better at 20 deg mean temperature class 'O' insulation applied by suitable adhesive complete including 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.

65mm dia. (32 mm thick insulation)

50 mm dia(19 mm thick insulation)

Supplying, fixing, testing and commissioning of 25 mm Ball valves of following size, with cast iron body, removable hand lever operated including nut, bolt, flanges, gasket dulypainted with synthetic enamel paint as per specification complete as reqd. in the condenser water pipe as the connected piping and adequately supported as per specifications of CPWD, with O- Ring, PN 25 pressure rating for condenser water pipe line as specified.

Supplying, laying/ fixing, testing and commissioning of 65 mm BUTTERFLY VALVE (MANUAL) with C I body SS Disc, Nitrile Rubber Seal & O- Ring PN 16 pressure rating for chilled water/hot eater circulation as specified

Y - STRAINER of 65mm dia. Ductile CI Body flanged ends with stainless steel strainer for chilled / hot water circulation including insulation as specified.

Supply, Installation, Testing and Commissioning of 65/50MM sizes electronic, self-balancing, pressure independent type dynamic balancing valve with integrated 2 way modualating control valve in a single body. The actuator shall be capable of accepting upto 10V DC and upto 20mA electric signal and shall provide similar transduced feedback output to control system. Maximum close off pressure shall not be less than 6 Bar for upto 50 mm valves and 7 Bar for 65 mm & above. Valves should have pressure rating of 25 Bar minimum.

Supply, installation, balancing and commissioning of factory/site 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. (It shall be as per SMACNA standards). GI sheet shall be 180 GSM Coating.

Thickness 0.63 mm Galvanized Sheet Steel Ducting

Supply, installation, testing and commissioning of GI Volume Control Duct Damper complete with neoprene rubber gaskets, nuts, bolts, screws linkages, flanges etc, as per specifications.

Supply, installation and testing of Canvass connecation for TFA of Unit.

Supplying, fixing, testing, and commissioning powder-coated aluminum louvers involves.

Supplying of duly laminated aluminum foil of mat finish closed cell Nitrile rubber (Class “O”) insulation on existing duct after applying suitable adhesive for Nitrile rubber. The joints shall be sealed with 50 mm wide and 3 mm thick self adhesive nitrile rubber tape insulation complete as per specifications and as required.

25mm thick

19mm thick

Supply, installation, testing and commissioning of 15mm above open cell nitrile rubber insulation for duct acoustic.

Supply, installation, testing and commissioning of Cooling/Heating Thermostats for TFA Units as per specifications including all accessaries , mountings, wiring between thermostat & unit, terminations etc.

Supply, installation, testing and commissioning of 25/32 mm dia Auto Purge Valves with valve of brass construction with screwed ends duly insulated as per specifications and drawings complete in all respect.

Providing and fixing in position the industrial type pressure gauges with gun metal/brass valves complete as required.

Providing & fixing in position the mercury in glass industrial type thermometer complete as required.

Supply, Installation, Dressing with Bends,Tees and union etc. of PVC DRAIN PIPING with proper leak proof adhesive at joints duly insulatedwith 9 mm Nitrile rubber and BOPP tape of following size dia.

32 mm Dia PVC drain Pipe.

Supply, Installation, Testing, and Commissioning, for Duct-mounted inline fans (2000 cfm) includes the motor, electrical components, access doorsetc.

Supply, Installation, Testing, and Commissioning, of Single- phase starter panel for Inline- fan including push button, contactor etc as require accessories.

Supply,Installation ,Testing & Commissioning of suitable VFD along with powder coated enclosure box with exhaust fan, control wiring for the TFA unit and starter panel as required any modification as in complete.

Charges for existing panel modification including all Ele. Accessories for TFA unit.

Supply and laying of 4 Core 4 Sqmm copper armoured cable for incomer of VFD panel ( Finolex, Polycab Cable )

Wiring for circuit/ submain wiring along with earth wire with the following sizes of FRLS PVC insulated copper conductor, single core cable in surface/ recessed medium class PVC conduit as required.

2 X 6 sq. mm + 1 X 6 sq. mm earth wire

2 X 4 sq. mm + 1 X 4 sq. mm earth wire

2 X 2.5 sq. mm + 1 X 2.5 sq. mm earth wire

2 X 1.5 sq. mm + 1 X 1.5 sq. mm earth wire

Supplying and installing following size of perforated Hot Dipped Galvanised Iron cable tray (Galvanization thickness not less than 50 microns) with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with G.I. suspenders including G.I. bolts & nuts, etc. as required.

100 mm width X 50 mm depth X 1.6 mm thickness

150 mm width X 50 mm depth X 1.6 mm thickness

Supplying and laying GI wire earthing for Treated Fresh Air Unit (TFA) system involves connecting the TFA metal parts to an earth rod using a GI wire, typically a 8SWG size. The wire, along with specialized GI clamps, connects the TFA grounding points to the main earthing system

Charges for Dismantling of Floor mounted HRW units with Ducting, Ele. Connecation etc. including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge.