SITC of Chilled Water Airconditioning system (Low side) Comprising double skin AHUs, valves and controls chilled water piping,ducting,duct insultation etc. at TIFR,Mumbai

Amount

SITC of Double Skin Standard type Horizontal floor mounting Top Discharge Air Handling Unit constructed from 22G plain GI sheet as inner skin & outer skin shall be 22 G GI Powder coated sheet with 45mm thick injected PFU with 45 kg/cubm. density insulation in-between and the frame work shall be constructed of extruded Aluminum hollow section with thermal break and filled with reformed insulation section. Unit shall complete with a) Fan section with forward curved fan made of ‘KRUGER’, suitable capacity energy efficient Motor, taper lock pulley & belt b) Coil section with CU coil of 5/8" size 22 G thickness & AL Fins of 32G Thickness c) Filter section with flat type air filters with 3 ply pleaded HDPE washable filters with AL casing of 50mm thick d) Suitable depth PVC moisture eliminator kept in between coil and motor to arrest condensate spray. Motor shall have terminal box at the top for the ease of electrical connections. All AHU nut, bolt and washer should be of Stainless Steel Materials having 304 grades. The AHU shall be suitable for the following duty as per tender’s technical specifications enclosed

Capacity :- 8850 cfm, 50mm static, 4 row deep cooling coil of Appx. 18 sqft area

Capacity :- 7000 cfm, 50mm static, 4 row deep cooling coil of Appx. 14 sqft area

Modification of chilled water piping connections to cooling coil of AHUs with SITC of suitable size , Tata/Jindal make M.S. `C` class , e.r.w., and reinstallation of the existing ‘Siemens’ make 3-way valve & butterfly valves. The Installation of new pipe shall be complete with with 44 mm thick(two layer of 25mm & 19mm each) antimicrobial nitrile rubber insulation covered by 26G AL cladding, etc. as per tender spec. All the nuts, bolts & washer, used for piping & valve connection and piping & AHU connection shall be made of SS material having 304 Grade. All the piping support should be hot dipped galvanized.

SITC of chilled water piping header of following sizes Tata/Jindal make M.S. `C` class , e.r.w., The Installation of new pipe shall be complete with with 44 mm thick (two layer of 25mm & 19mm each) antimicrobial nitrile rubber insulation covered by 120 gm/sq.m polythene sheet as vapor barrier with 50mm overlap. The final insulated pipe surface shall be finished with cladding of 0.63mm thick(24G) AL sheet duly overlapped on joint and stripped by SS stripping sheet of 25mm width. All the supports, nuts, bolts & washer, used for piping & valve connection and piping shall be made of Hot Dipped Galvanized material .

Size 80mm NB

Size 65mm NB

Size 50mm NB

Design, fabrication, supply, installation, testing and commissioning of 20G GSS ducting as per IS655 of following size with all the accessories like turning vanes, elbows, flange, Hot dipped Galvanized Structural steel supports, gaskets, SS 304 Grade nuts and bolts & hardware etc. , complete in all respects to the entire satisfaction of the department as per technical specifications in totality. Nothing extra shall be payable on any account.

S&I of Heavy duty Damper made out of 16G AL sheet with all the moving parts supported on Brass bush made of GI sheet (Flappers) & hot dipped galvanized structural steel (levers) on the outlets of the AHU and at the branches of duct

Supply & installation of thermal insulation for supply air ducting air ducting (Basement Corridor – Non AC area) with 44mm thick (a layer of 25mm thick with another layer of 19mm thick)Nitrile based rubber having Class ‘O’ rating of following sizes, backed with factory laminated Aluminum foil including sealant between duct and insulation & Aluminum tape between joints, complete in all respects to the entire satisfaction of the department as per technical specifications in totality. Nothing extra shall be payable on any account.

Supply & fixing of ‘Audco’ make PN16 rating butterfly valve at chilled water header with all the accessories i.e. cutting, welding, distance piece, insulation, etc. complete as required

Size 80mm NB

Size 65mm NB

Size 50mm NB

Supply & Installation of 25mm NB size Auto air vents & drain valves with insulation as per attached technical specification.

Providing and fixing in position the industrial type pressure gauges with gun metal valves & siphon tube and as per attached technical specifications.

Providing and fixing in position the mercury-in- glass industrial type thermometers and as per attached technical specifications

- Buy Back Items

Buy-Back (ie minus) existing Cascade Beam Hall Double Skin AHU with associated Piping (Appx. 40 meter length) and GI Ducting , etc on “As is where is basis” i.e including dismantling , lifting & shifting.

Buy-Back (ie minus) existing Cascade control room & office Double Skin AHU with connected Piping and GI Ducting , etc on “As is where is basis” i.e including dismantling , lifting & shifting.

vighneshwar airconditioning pvt. ltd