Nuclear Fuel Complex Tender

Condensing Units - Air Cooled type Condensing untis equipped with High Energy Efficient Imported Scroll Compressors , Galvanized steel Construction finished in polyester powder coat etc This unit is equipped with Microprocessor based controller having unique features to ensure that system operates at optimum efficiency levels. These units will be inter connected with AHU at item Sl. No. ( 1 ). Capacity: 11 TR. These units shall be supplied with all required accessories such as appropriate sized service Valves, drier filter with both side valves, liquid receiver, in- built thermal/ temperature protection etc. 3 Nos.X 11 TR Condensing units shall be connected to each AHU

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Testing and commissioning of above condensing units including Nitrogen pressure testing, Vaccumising and Eco-friendly Refrigerant gas charging.

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Refrigerant Copper piping : High pressure copper refrigerant piping consisting of suction & liquid line piping and fittting with 19 mm thick closed cell elastomeric XLPE insulation and covered with suitable thick/mill glass cloth and finished with polyshield coating with atleast two coats of resin and hardner .The piping shall be carried with soldered/ brazed socket fittings. Refrigerant Hard Copper piping i.e. Liquid line & Suction line with necesary elbows, fittings, service valves, drier filter/catch all filter ( with both side valves ) , thermostatic expansion valves (for each condensing unit) , nitrile rubber insulation , clamping, supporting structure ( GI perforated tray & cover) with grouting , from AHU to 11 TR Condensing Units ( Sizes of Hard Copper pipings is as per OEM recommnedations)

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Ducting : Design , supply , installation , testing and commissioning of Factory Fabricated GI Ducting complete with high tech supports ( Turning / catch shall be installed for appropriate locations ) . Ducting should be as per SMACNA std. The scope includes required scafolding required for erection of GI ducting etc.

Supply: GI ducting 22 Gauge

Erection: GI ducting 22 Gauge

Supply: GI ducting 24 Gauge

Erection: GI ducting 24 Gauge

Supply: GI ducting 18 Gauge

Erection: GI ducting 18 Gauge

Aluminium SA grills: Aluminium Supply AIR Grills /4-way Diffusers powder coated of minimum thickness 0.8 mm along with all necessary hardware with Volume Control Damper (VCD) .

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Aluminium RA grills : Aluminium return air Grills/diffusers powder coated of minimum thickness .8 mm along with all necessary hardware without Volume Control Damper (VCD)

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Damper : Supply and fixing of volume control dampers with chrome plated spindles, self lubricated bushes, full enclosure for blade linkages, operating handle equiped with position indicator. 18g GI for frame,20g for Blades

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Fire Damper : Fusible link type fire dampers with 90 min fire rating with limit switch

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THERMAL INSULATION OF DUCTS ( EXPOSED ): Supply and Application of External Thermal Insulation of Supply Air and return air ducting coming out side. Material of construction shall be cross linked polyolefin/polyethylene foam material with closed cell structure and with factory applied reinforced aluminium foil. The density of the same shall be within 25 Kg/m3.The material should have a thermal conductivity not exceeding 0.032 W/mK. The insulation material shall be shall be stuck to the cleaned duct surface by factory pre-fixed cold adhesive. The finishing will be carried out with fixing 200 gsm glass cloth with the help of adhesive Fevicol lag coating (AF 5590) . Finally it will be painted with synthetic enamel paint. The material and installation methodology should be in accordance with the specifications. Insulation shall be of 25 mm thick

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THERMAL INSULATION OF DUCTS (UN EXPOSED) : Supply and Application of External Thermal Insulation of Supply Air ducting. Material of construction shall be cross linked polyolefin/ polyethelene foam material with closed cell structure and with factory applied reinforced aluminium foil. The density of the same shall be within 25 Kg/m3.The material should have a thermal conductivity not exceeding 0.032 W/mK. The insulation material shall be shall be stuck to the cleaned duct surface by factory pre-fixed cold adhesive. The material and installation methodology should be in accordance with the specifications. Thickness of insulation:25mm thick - Class " O "

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ACOUSTIC INSULATION OF DUCTS : Supply and Application of Acoustic insulation for the initial portion of supply air ducting. Material of construction shall be fibre-free elastomeric nitrile rubber foam with open cell structure . The density of the same shall be within 140-180 Kg/m3. The material should have a thermal conductivity not exceeding 0.050 W/mK. The maximum surface temperature the material should withstand is 105° C and minimum temperature should be -20°C. The material should conform to Class 1 rating for surface spread of Flame as per BS 476 Part 7. The insulation material shall be shall be stuck to the cleaned duct surface by factory pre-fixed cold adhesive. The material and installation methodology should be in accordance with the specifications. Thickness of insulation:25mm.

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Providing of sound attenuators at appropriate locations . It will of square/rectangular flanged type 18G GI sheet casing complete with 22 G splitters consisting of 48 Kg/Cum density Minaral wool tissue facing with 26 G aluminum perforated sheet.

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Thermal Insulation for metal (Zinc-Aluminum Colour Coated Roofing Sheets) roofing : Thermal insulation with 25 mm thick EPS of minimum density 16 kg/cum , using suitable adhesive,etc. The maximum surface temperature of the material should withstand is 105° C and minimum temperature should be -20°C.

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Wire mesh and cowl for fresh air

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CPVC drain piping with required clamps,fittings, insulation and supports 40 mm dia

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CONTROL CUM DISTRIBUTION MCC PANEL: Supply, Erection, Testing and Commissioning of MV control cum distribution panel ( for AHU's, condensing units, reheaters ) of Indoor, free standing floor mounting type, 3 ph/415 V 4, wire dust and vermin proof by construction of 14 SWG CRCA sheets, treated with 7 tank process, painted with epoxy powder coating, compartmentalized, modular type with IP 42 Protection. Incomer: 1No - MCCB with ROHM arrangement, 1 Set of Current transformer, 1 No - Digital Multi data Meter with dual reading arrangement for volt, Amps, PF & Energy ,1 Set - LED type RYB indication lamps with control fuses , rated capacity Four Pole control MCB with neutral link. Outgoing - 1 ( 3 nos of A H U ) : 3 ph star-delta starter (fuse less protection) suitable MCCB, power contactor, bi-relay, timer, under voltage trip, overvoltage trip, single phase prevention, phase reversal unbalanced load trip relays, on/off push button, indicator lamps, auto manual operation . Outgoing - 2 ( 9 nos of condensing units-11 TR Cap.): Multiple feeders for Condensing units with rated/suitable TPNMCCB, suitable TPN Aluminium Bus Bar ( TPN+E Electrolyte grade) and associated accessories as required. The MCC panel shall have 2 spare cubicle one for the AHU and the other for condensing units. Include potential free contacts as and when required. MCC Panel suitable for 3 Nos X 33 TR AHU - 13200 CFM- 125 MM ST.PR, 9 nos. 11.0 TR DX air-cooled condensing units and ERV. a. __ TPN SDFU incomer – 1 No b. __ HP star delta starter with MCCB for condensing units - 9 Nos c. __ HP star delta starter with MCCB for blowers - 3 Nos. d.---- LED type RYB indication lamps on line side of Incomer with MCB – 1set e.----Trivector meter with Ethernet & RS485 connectivity of secure/Enercon make on the outgoing side of Incomer with MCB protection – 1Set Electrical control panel comprising starters for AHUs and control of condensing units . Including stategic control system with digital temp display.

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Electrical Cabling ( Power cabling):Supply, Installation, Testing & Commissioning of BIS Certified FRLS , PVC insulated Armoured Copper Power Cables of suitable ratings/sizes between the distribution board, outdoor units,heaters, AHU Units including lugs,crimping and terminations identifying labels duly clamped with Terminations.

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Electrical cabling (control Cabling): Supply, Installation and Testing of BIS certified PVC insulated Armoured FRLS copper control cable of suitable rating/size interconnecting the indoor and outdoor units.

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GI Cable Tray with cover - different sizes as per site requiremet

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GI Earthing: 25x3 mm GI flat laid in open fashion with necessary clamps , screws and interlinks etc for earthing of drives

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STRUCTURAL FABRICATED STEEL WORK: Supply, Fabrication , Cutting, Welding , Erection at site and painting of M. S. Angle structural steel work for required truss, AHU/ODU /Supporting structurer/etec. & as per site requirements, etc. based on the approved drawings. The work should be carried out as per good manufacturing and installation practices in concurrence with approved drawings. The structural steel materials should confirm to IS : 2062 (latest version) as per drawings. All welding electrodes to confirm to relevant IS codes. Fabrication and erection of the structural steel works shall be as per IS: 800 and welding work as per IS:816 and IS: 822. Finally all steel work to be painted with one coat of zinc chromate primer and two coats of Metal primer paint.

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Civil Works (RCC)

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