PROVN OF CENTRAL COOLING SYSTEM IN BLDG NO P-25 AT 25 WEU UNDER GE(EAST) LUCKNOW.

M & L for complete removal of existing treatment by scrapping with Trucare Wall Sander: L- 01/H-01 (having mechanical vacuum mechanism) or equivalent complete all as specified and directed.

M&L for thermal insulation and composite system on internal side of existing brick wall with first layer Inner insulation layer of self-extinguishing ( Fire Grade FR-Grade ) type expanded polystyrene (EPS) insulation board of 50 mm thick (max 2.0 m x 1.0m (measured as per IS 3346-1980) density of 18 kg/cum measured as per IS 5688-1982 fire retardant properly self estinguishing ( Fire Grade FR-Grade ) type as per EN 13501-1 bonded with special adhesive polymer or polymer modified cementations adhesive confirming to EOTA 004 (European Technical Approval) formulated to bond polystyrene insulation boards to typical mineral substrata (according to ETAG 004 and polypropylene mechanical fasteners with plastic Dowel pin confirming to EOTA ETAG 014 (European Technical Approval) having dia 10mm & L= 70 mm on finished level wall and the junction between two adjacent EPS board to be seated with low expansion moisture cure polyurethane Foam. Second layer consist of Fiberglass mesh covered with alkali-resistant coating mass per unit area greater than and equal to 175 gm/Sqm. Mesh size 3.90 x 4.00mm + or - 10% embedded in special polymer modified cementations base coat with hydrophones and the corners will be protected with corner beads with alkali-resistant mesh wings at least 10 cm wide mesh mass per unit area min 175 gm/Sqm. Finishing walls with 100% Premium acrylic emulsion paint having VOC less than 50gm/Ltr and UV resistance as per IS 15489-2004. Alkali & fungal resistance, Dir resistance exterior paint of required shade (Company Depot Tinted) with silicon additives ( Two or more coat applied @ 1.43ltr/10Sqm over and including priming coat of exterior primer applied @ 0.90 ltr/10Sqm. The surface will be levelled, finished and made smooth complete in all respect as per the manufactures specification complete all as specified and directed.

M&L for applying 2 coat of bitumen 85/25 grade @ 1.2Kg/Sqm over existing brick wall and over thermal insulation and composite system on external side with first layer of self-estinguishing ( Fire Grade FR-Grade ) type expanded polytyrene(EPS) insulation board of 100 mm thick (max 2.0 m x 1.0m (measured as per IS 3346-1980) density of 18 kg/cum measured as per IS 5688-1982 fire retardant properly self estinguishing type as per EN 13501-1 bonded with special polymer modified cementations adhesive confirming to EOTA 004 (European Technical Approval) formulated to bond polystyrene insulation boards to typical mineral substrata (according to ETAG 004 and polypropylene mechanical fasteners with plastic Dowel pin confirming to EOTA ETAG 014 (European Technical Approval) having dia 10mm & L= 120 mm on finished level wall and the junction between two adjacent EPS board to be seated with low expansion moisture cure polyurethane Foam. Second layer consist of Fiberglass mesh covered with alkali-resistant coating mass per unit area greater than and equal to 175 gm/Sqm. Mesh size 3.90 x 4.00mm + or - 10% embedded in special polymer modified cementations base coat with hydrophones and the corners will be protected with corner beads with alkali-resistant mesh wings at least 10cm wide mesh mass per unit area min 145gm/Sqm. Finishing walls with 100% Premium acrylic emulsion paint having VOC less than 50gm/Ltr and UV resistance as per IS 15489-2004. Alkali & fungal resistance,dir resistance exterior paint of required shade(Company Depot Tinted) with silicon additives ( Two or more coat applied @ 1.43ltr/10Sqm over and including priming coat of exterior primer applied @ 0.90 ltr/10Sqm. The surface will be levelled, finished and made smooth complete in all respect as per the manufactures specification and complete all as specified and directed.

M&L for applying two coats of bitumen 85/25 grade @ 1.50 kg/Sqm over finished RCC Slab and over EPS sheets ( Fire Grade FR-Grade 2000mm X 1000mm X 150mm LBH )) having density 36 Kg/Cum and over heat resistant terrace tile 9300x300x20mm) laid over 20mm thick plastering in CM 1:4 and well jointed to gaps of tiles all as per manufacturer’s instructions and specification complete all as specified and directed. Note- :Proper Vapour barrier with Polyethene Sheet of thickness 0.25mm shall be used before laying EPS layer.

Taking down chowkhat or frame with shutter (without taking off shutter from the frame) and area n.exc 1.5 Sqm each complete all as specified and directed.

S&F Factory made uPVC prelem colour fixing type DGU (Doouble glazed Unit ) window with 6mm-12 airgap-6mm glass UPVC windows with SC value of 0.44 and U value of 1.71, transmission 54%) (Two nos. glazed & one no. wire mesh panels) upto 1.50m height made of (big series) frame 112 x 52mm & sash 42x 68 mm both having wall thickness of 2.3 ± 0.2 mm and single glazing bead / double glazing bead of appropriate dimension. (Area of window above 1.75 sqm) comprising of uPVC multi- chambered frame, with inbuilt roller track and sash extruded profiles duly reinforced with 1.60 ± 0.2 mm thick galvanized mild steel section made from roll forming process of required length (shape & size according to uPVC profile), appropriate dimension of uPVC extruded glazing beads and uPVC extruded interlocks, EPDM gasket, wool pile, zinc alloy (white powder coated) touch locks with hook, zinc alloy body with single nylon rollers (weight bearing capacity to be 40 kg), G.I fasteners 100 x 8 mm size for fixing frame to finished wall and necessary stainless steel screws etc. Profile of frame & sash shall be mitred cut and fusion welded at all corners, including drilling of holes for fixing hardware's and drainage of water etc. After fixing frame the gap between frame and adjacent finished wall shall be filled with weather proof silicon sealent over backer rod of required size and of approved quality, complete all as specified and directed by Engineer-in-Charge.

DESIGN & ENGINEERING Design, preparation, submission and vetting of complete design and detailed engineering including borehole field design and hydraulic schematic, drawings for Geothermal Based Central Cooling System, including heat load calculations, borehole heat exchanger (BHE) layout, plant room layout, piping layouts, electrical and control schematics, complete in all respects. Drawings shall be vetted from IIT/NIT and shall be subject to approval by Accepting officer. Any modifications suggested during vetting/approval shall be incorporated by the contractor at no extra cost. However, vetting of design shall not absolve the contractor of responsibility for satisfactory performance of the system during testing and commissioning as specified.

GEOTHERMAL BOREHOLE SYSTEM M & L for providing and drilling vertical geothermal boreholes using suitable mechanical drilling rigs up to minimum depth of 120 m per borehole, including casing as required to maintain bore stability, bore cleaning, logging of strata encountered and preparation of borehole for installation of geothermal probe complete all as specified.

Supply, installation, testing and commissioning of HDPE U-tube geothermal probe of PE-100 grade, SDR-11, DN-40, including butt-fusion welded joints, lowering of probe assembly into borehole, pressure testing and preparation for borehole grouting complete all as specified. Note - Conical weight and thermally enhanced grout shall be measured and paid separately under respective items of BoQ.

M & L for providing, laying, jointing, testing and commissioning of HDPE pipe PE-100, SDR-11, DN-40 for horizontal interconnection of borehole heat exchanger loops to header/manifold, including excavation, sand cushioning, fittings, butt-fusion welded joints, refilling, compaction, flushing and commissioning of ground loop circuit complete all as specified.