Public Works Department - Delhi
37813175 tender for supply installation testing and commissioning of air cooled scroll chiller unit 17 tr x 3 nos for lecture hall in ucms at gtb hospital, dilshad garden, shahdara, delhi 1 supply, installation, testing and commissioning of ahri certified air cooled scroll chiller machine of 17 tr actual capacity as per below mentioned conditions, suitable for operation on 415 + 10% volts, 3 phase, 50 hz. ac supply;complete with 2nos. or more scroll type compressors with motor, dx type condensor, flooded water chiller, microprocessor based touch screen controller with suitable terminal box with incomer switchgear for connections, automatic capacity control & safety devices, refrigerant piping with valves & controls, control wiring, initial charge of refrigerant & oil, duly mounted on m. s. skid with suitable anti vibration mountings, making necessary cc foundation etc. complete as reqd. i) chiller water inlet: 12 deg fii) chiller water out: 7 deg fiii) fouling factor: 0.044 m2.k/kwiv) ikw/tr at 100% load & ahri condition shall be less than 1.2v) design ambient temperature: 42 deg c as per delhi conditions 2 supply, erection, testing and commissioning of centrifugal chilled water pump set capable of delivering 80 usgpm of water against approx. 20 mtr. head, suitable for operation on 415v, 3 phase, 50 hz ac supply including cc foundation, antivibration pads, water & electrical connections etc, complete as per specifications and as required. 3 supply, installation, testing and commissioning of factory built floor mounted chilled water double skin type horizontal/vertical air handling units 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 gss/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 tefc drive motor of efficiency class ie3 suitable for 415 ± 10% volts, 50hz, 3 phase ac supply suitably designed for variable frequency drive 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.) at the inlet and outlet of coil, auto purge valve wherever required, necessary vibration isolation arrangement etc. complete as per specification and of following capacities. 4 ahu 8000 cfm, 50 mm static and 6 rows deep as described above 5 providing and fixing chlorinated polyvinyl chloride (cpvc) pipes, having thermal stability for cold water supply including all cpvc plain & brass threaded fittings this includes jointing of pipes & fittings with one step cpvc solvent cement, trenching, refilling & testing of joints complete as per direction of engineer in charge. the quoted price shall be inclusive of thermal insulation of nitrile rubber having a thickness of minimum 9 mm. 6 50 mm nominal outer dia pipes 7 40 mm nominal outer dia pipes 8 supplying, fixing, testing and commissioning of non return valve with duel plate of c i body ss plates vulcanized nbr seal flanged end & pn 16 pressure rating for chilled water circulation including insulation as specified. 9 50 mm dia 10 supplying, fixing, testing and commissioning of 3 way valve consisting of mixing valves, actuator, linkage & temperature controller etc. 11 50 mm dia 12 supply, installation, testing and commissioning fire retardant canvas connection for indoor unit. 13 supplying and installing following size of perforated hot dipped galvanised iron cable tray (galvanisation 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. 14 225 mm width x 50 mm depth x 1.6 mm thickness 15 300 mm widthx 50 mmm depthx1.6 mm thickness. 16 450 mm width x 50 mm depthx 2 mm thickness. 17 supplying and installing following size of perforated hot dipped galvanised iron cable tray “bends” (galvanisation 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. 18 300 mm widthx 50 mmm depthx1.6 mm thickness. 19 450 mm width x 50 mm depthx 2 mm thickness. 20 supplying and installing following size of perforated hot dipped galvanised iron cable tray “tee” (galvanisation 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. 21 300 mm widthx 50 mmm depthx1.6 mm thickness. 22 450 mm width x 50 mm depth x 2 mm thickness. 23 supplying and installing following size of perforated hot dipped galvanised iron cable tray “cross member” (galvanisation 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. 24 300 mm widthx 50 mmm depthx1.6 mm thickness. 25 450 mm width x 50 mm depthx 2 mm thickness. 26 supplying & installing following size of perforated hot dipped galvanised iron cable tray “reducer” (galvanisation 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. 27 300 mm widthx 50 mmm depthx1.6 mm thickness. 28 450 mm width x 50 mm depthx 2 mm thickness. 29 earthing with g.i. earth pipe 4.5 meter long, 40 mm dia including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe etc. with charcoal/ coke and salt as required. 30 providing and fixing 25 mm x 5 mm g.i. strip on surface or in recess for connections etc. as required. 31 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 80 kg/cum density resin bonded fiber glass or 144 kg/ m3 density mineral wool (non combustible) pipe section insulation covered with a layer of 120 gm/sq.m polythene sheet (vapour barrier) and finally applying 0.63mm aluminium sheet cladding complete with type3, grade 1 roofing feltstrip(as per is:1322 as amended up to date) at joints and repairing of damage to building etc. as per specifications and as required. 32 80 mm dia. (50 mm thick insulation) 33 65 mm dia. (50 mm thick insulation) 34 50 mm dia. (50 mm thick insulation) 35 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. 36 50 mm dia 37 providing & fixing in position the industrial type pressure gauges 50 mm dia with gun metal/brass valves complete as required. 38 providing and fixing in position the mercury in glass industrial type thermometres. 39 supply, installation, balancing and commissioning fabricated at site 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. 40 thickness 0.63 mm sheet 41 thickness 0.80 mm sheet 42 thickness 1.00 mm sheet 43 supplying & fixing of powder coated extruded aluminium supply air grills with aluminium volume control dampers as per specifications. 44 supplying & fixing of powder coated extruded aluminium return air grills with louvers but without volume control dampers complete as required. 45 supplying, fixing testing commissioning of supply air diffusers of powder coated aluminium with aluminium volume control dampers with anti smudge ring & removable core. 46 supplying, fixing testing commissioning of return air diffusers of powder coated aluminium without volume control dampers with anti smudge ring & removable core. 47 supplying, fixing, testing and commissioning of fire dampers in supply air duct/main branch and return air path as and where required of requiredsizes i/c control wiring, the damper shall be motorized and spring return so as to close the damper in the event of power failure automatically and open the same in case of power being restored. the spring return action shall be inbuilt mechanism and not externally mounted. the damper shall also be closed in the event of fire signal complete as required and as per specifications. 48 fire dampers 49 actuator 50 supply and fixing of acoustic lining of supply air duct with 25 mm thick resin bonded glass wool having density of 32kg/m³, with 25 mm x 25 mm gi section of 1.25 mm thick, at 600 mm centre to centre covered with reinforced plastic tissue paper and 0.5 mm thick perforated aluminum sheet fixed to inside surface of ducts with cadmium plated nuts, bolts, stickpins, cprx compound etc. complete as required and as per. 51 supplying and fixing of following thickness 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. 52 19 mm thick ...