Nuclear Fuel Complex Tender

11 TR Capacity - Air Cooled condensing units

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Refrigerant Hard Copper piping i.e. Liquid line & Suction line with necessary elbows, fittings, service valves, drier filter/catch all filter , thermostatic expansion valves with isolation valves, nitrile rubber insulation , clamping, supporting structure ( GI perforated tray) with grouting ,  from AHU to 11 TR Condensing Units ( Sizes of Hard Copper pipings & insulation are as per OEM recommendations )- Entire copper tubing shall be insulated as per detailed specs.

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N2 Pressure Testing, Vaccum & refrigerant charging i.e. R-407C/R-410A  for item  no 1 & 2

Ducting of GI ducting of 20 guage, along with suitable  supporting MS angle structure along with flanges , gaskets, sealant complete as per detailed specifications

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Ducting of GI ducting of 22 guage, along with suitable  supporting MS angle structure along with flanges , gaskets, sealant complete as per detailed specifications

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Ducting of GI ducting of 24 guage, along with suitable  supporting MS angle structure along with flanges , gaskets, sealant complete as per detailed specifications

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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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THERMAL INSULATION OF DUCTS (INDOOR) :  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.

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THERMAL INSULATION OF DUCTS (OUTDOOR ):  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 with 200 GSM glass cloth finishing.

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Remote Control units to operate each AHU &  Condensing units with communication cable from MCC to AHU /Control unit. 

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POWER CABLING S :  Power supply cable ( Armoured , PVC insulated & FRLS) from MCC Panel  to AHU & Condensing Units  with  GI wire for earthing. ( Power supply cable sizes shall be as per OEM recommendations for AHU's & Condensing units) .

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CONTROL CABLING :  Control cable  of BIS certified PVC insulated Armoured FRLS copper control cable OF suitable rating/size interconnecting the  AHU / Condensing units/MCC /  Remote controller, etc. as per site requirements.

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GI Earth strip of 3mm thick one inch flat

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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 ( 2 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 ( 8 nos of condensing units-11 TRCap.): 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 2 Nos 44 TR AHU-17600 CFM-100 MM ST.PR, 8 nos. 11.0 TR DX air-cooled condensing units and ERV. a. __ TPN SDFU incomer – 1 No b. b. __ HP star delta starter with MCCB for condensing units - 8 Nos c. __ HP star delta starter with MCCB for blowers - 2 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

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Aluminium SA grills : Supply & Installation of Aluminium powder coated ( of minimum thickness of 0.8mm )Four Way Diffuser with Valume Control  dampers for Supply Air 

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Aluminium RA grills : Supply & Installation of Aluminium powder coated ( of minimum thickness of 0.8mm )

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DAMPERS:  Supply, installation, testing and commissioning of Factory fabricated low leakage volume control/duct dampers of  Aerofoil-blade Aluminium dampers

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Fir dampers :  Fusible link type Galvanised Sheet fire dampers of atleast 90 minutes of fire rating with limit switch

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WIRE MESH : Supply & erection of suitable wire mesh and cowl for fresh air

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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 structure/etc. & 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 synthetic enamel paint.

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GI Cable Tray perforated ladder type

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CPVC drain Pipe : Hard PVC drain piping insulated out of class O closed cell elastomeric nitrile rubber material with U trap. Etc.

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