Supply, Installation, Testing And Commissioning Of Hot Water Generator Along With Allied Items For Central Heating Purpose At Govt. Lalla Ded Hospital, Srinagar.- 1 supply, installation,testing and comissioning of hot water generator having capacity greater than16 lac kcal/hr of capacityfor whichspecification are mentioned below Type: horizontal smoke tube, three pass design. Material of construction shell/furnance/wet back SA- 515/516 Gr. 60/70 tubes:- recommended by OEM, water feed pumps: one working plus one standby , Motor specification:- as per recommended by OEMfuel:HSD, model: automatic firing in a burner, electrical connection 415±10% frequency:50hz, three phase 4 wire AC supply mounting and fitting: main stop valve, hot water inlet and outlet, safety valve, blow down valve, water gauge column set, pressure gauge with syphon cock, air release valve, feed pump pipeline. water level controller(mobrey control): complete with requisite valves and provision for high and low water alarm. diesel firing arrangement: fully automatic diesel burner complete with necessary valves fittings and mountings such as oil pump, fd fan(blower) with drive motor, solenoid valve pressure gauge, ignition transformer and ignition electrodes, flame monitor device control panel with starters, contactors, rotary switches, hooters, relays and necessary indicating lamps etc for boiler operation. the job also includes providing and fabrication of chimney along with flue gas duct as per the OEM recommendations. the job includes providing and laying of suitable concerete as per recommendation of OEM. Any damages to the walls, cabin during the dismantling of existing boiler shall be in the scope of the work.the job also includes dsmantling of old boiler also. 2 The HOT WATER GENERATOR shall be provided with an independent self-supporting flue gas chimney for exhaustion of the combustion gases. The chimney shall be aboutminimum 13 meters high & fabricated out of minimum 5 mm thick mild steel plates rolled into a round tube of diameter as per manufacturer’s recommendations. All joints between the connecting sections shall be provided with M.S flanges & duly fastened with nuts & bolts. The top of the chimney shall be provided with an M.S. sheet canopy and wire mesh to prevent the ingress of foreign objects.An inspection window shall have to be provided in the bottom portion of the chimney. The chimney shall have 16 mm thick M.S. bottom plate to support the weight. A reinforced cement concrete foundation of suitable size shall be laid for the chimney. The reinforcement shall be of tor steel rods of 12 mm & 10 mm and rings made out of 8 mm tor steel for holding the matrix of steel rods in the foundation block. The chimney shall be connected to the boilers through two flanged circular tube section flue gas ducts, to be fabricated out of M.S. plate of minimum 5 mm thickness and of diameter as recommended by OEM. The length of the flue gas duct shall be as per site requirements. The duct connection between the water boiler outlet and the chimney should be at an angle of not less than 45o . The design / erection of the chimney shall be as recommended by the boiler manufacturer and also subject to J&K Pollution Control Board norms. The chimney shall be provided with two coats of red oxide primer followed by two coats of paint of approved shade & brand. The chimney shall be fabricated strictly as per design and drawings recommended by OEM of boiler, to be approved by the department. The civil foundation for the chimney shall have to be laid as per OEM recommendation and cost on this account is included in the contract. Exact size to be recommended by OEM 3 supply, installation, testing and commissioning ofhorizontal centrifugal pumps for hot water circulation, complete with TEFC squirrel cage motors, stainless steel impeller and all necessary accessories, capacity of pump sets, net head all the pumps mentioned below shall also be complete with mechanical seals(120 degree celcius temperature resistant), drain connection amd shall suitable for operation on 415±10% volts, 50 hz, three phase AC power supply motor power : 40 HP discharge:- 165m3/hr head:- 40 m, RPM:- 1440-1500, no of poles: 4 pole, for hot water circuit. the job includes providing and fitting of mild steel based frame, suitable size MS flanges, vibration pads, nipples and reducers for suction and delivery side and as per technical specification.the job includes providing of spare mechanical seal as per above mentioned specification.The job also includes laying of foundation block of (1:1.5:3) mix as recommended by site incharge. 4 Dismantling of hot water generator excludingchimney by utilizingskilled man power/ mechanical crane along with allied equipments etc and shifting safely to a suitable space ouside the boiler house as directed by the engineer in chargethe job further includes dismantling of any type of bricklining wall, shifting of cable trays etc and restoring them to itsoriginal decorwith the help of skilled labour, tools and tackles to complete the job in full. the job further includes refittingof dismanteled hot water generator by utilizing skilled man power/ mechanical crane along with allied equipment from safe place to the boiler house and shall be placed on the exixting foundation .the job includes providing of skilled labour, tools and tackles to complete the job. The jobalso includes reconnecting of exhaust manifold of already erected chimney. the job also includes providng and fitting of worn out nuts, bolts, gaskets, flanges or any other electrical or mechanical equipent andrecommissioning the hot water generator successfullyin all respects. The job includes repairing of existing structure as per direction of Engineer-in-charge if there is a damage to the existing structure. 5 Providing and fixing precoated galvanized iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.05 %) total coated thickness with zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete uptoany pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required. 6 SITC of hot water radiators which have design/test pressure of 10kg/cm2 .The radiator shall be provided with a drain plug at the bottom with inlet & outlet manifolds for two pipe system on both the sides. The radiator shall be complete with top grill and end/side panels with rounded bottoms for user safety,Each radiator should be provided with OEM or equivalent air purging & radiator control valves. the radiator shall confirm to DIN EN442 standard.only those radiators will be accepted and shall be permitted on site which is sucessfully undergone the rigrous testing at pressure of 10 bar for 24 hrs continously the capacity of radiators are given below. 7 2500 kcal/hr 8 3000 kcal/hr 9 SITC of MS C class piping with necessary fittings as per technical specification 10 300 mm (thickness 6.4 mm or above) 11 150 mm( 5.4 mm thickness or above) 12 50 mm 13 25mm 14 20 mm 15 providing and fitting of all kind of MS structural support for successful of erection of MS pipes to be fabricated out of different steel sectionas per site requirement. The job includes the providing of mechanical equipment, fastenrs,bolts and other allied items as per site requirement so that it can withstand the weight of pipes to complete the job 16 providing and fitting of non combustible type glass wool, pipe sectioninsulation of the following diameters given below with aluminium cladding. The insulating material must be fixed with the piping with the help of binding wire and covered with .63mmx20mm mesh wire netting.the aluminium cladding must be 26 gauge thick and should be properly riveted. the average density of the glass wool insulation must be 80 kg/m3 17 300mm(the thickness of the insulation must beminimum 75 mm) 18 150mm(the thickness of the insulation must beminimum 75 mm) 19 50mm(the thickness of the insulation must beminimum 50 mm) 20 providing and fitting of elastomeric nitrile rubber insulation with having UV protector /barrier andhaving average density of 45 kg/m3. the insulation shall be of tubular form. The job includes all the allied items which includes tees section, fasteners etc to complete the job. The pipe diameters are given below. 21 25mm(thickness of the insulation shall be minimum 9mm) 22 20mm(thickness of the insulation shall be minimum 9mm) 23 supply installation testing and commissioning of control valves/fitting viz, flanges,nuts, nipples, and bolt washers etc. Suitable for handling of hot water at 90 degree celcius as per technical specification 24 insulated type Ductile iron sluice valve DN 150 MM and (PN 16) 25 butterfly valve DN 150 mm and (PN 16) EPDM liner and ss disc, temp resistivity minimum 80 degree. 26 Gate valve DN 50 mm and (PN 16)gun metal type 27 brass air release valves of size DN 25 mm(PN 16) 28 cast iron Y strainer of size DN 150 MM(PN 16) 29 cast iron NRV of 150 mm DN PN(16) 30 forged steel three piece 25 mm DN ball valve 31 forged steel three piece 20 mm DN ball valve 32 providing and fitting of ACP conduit over the exposed pipelining as per site requirement. The job includes providing and laying of GI channels nthreraded rod extra for fabrication of frame work ovewhich ACP sheet of 4 mm thickness shall be laid. 33 Dismantling of existing 150 mm MS C class central heating pipe along with allied accessories like insulation cladding etc and refitting at new place as per direction of Engineer-in-charge 34 providing and fitting of glycerin filled pressure gauge having indicator size of 50 mm, dual scale of havingdial range 0 to 10.6 kg/cm2 and 0 to 150 psi. 35 Electric works(the items mentioned below shall be prewired from the factory.) 36 SITC of 4 pole TPN 650 amp manual fixed type microprocessor basedACB(air circuit breaker) having 50 KA breaking capacityalong with all fittings.the ACB shall confirm to IS/IEC 60947 AND IEC-60947-2. 37 SITC of electricgrade aluminium bus bars with requisite tappinghaving R,Y,B and neutral and can carry650 amp current. . The item shall confirm to IES 61439 PART 1 AND 6 38 SITC of4 pole TPN 100 amp MCCBfor hot water generator having thermal release range of100-125 AMP and breaking capcity of 18 ka. The item shall confirm to IS/IEC 60947-2 & IEC 60947-2and shall be in ss enclosure. 39 SITC of fully automatic star delta starter(ML4) along with single phase preventer.the item shall confirm to IS 8554(PART I) 1979. 40 Fabrication of CRC compartmentalized enclosure for all thye electric items like starter, bus bars mccb, fuses etc. The thickness of the enclosure shall be minimum 2 mm. the job includes providing of skilled labour tools and tackles to complete the job. 41 SITC of digital multifunctioning metering module, which can measure real time 3 phase and single phase( volatge, current, freqyuency andpower factor, kw, kva, kwh, kvah, kvarh, run hours, on hours, phase angle, interrupts, THD, events(high-low), neutral current, k factor.the item shall confirm to IEC 61439-1&2, IEC 61921 & IS 13947 42 supply , installation, testing and commissioning of 4 core armoured 16 sqmm copper conductor with having protective sheet. The job includes p/f of copper thimbles of required size using hydraulic crimping tool and heavy duty/wall fasteners .all tools and tackles shall be arranged by the firm . the cable shall confirm to IS: 7098(PART 1) 43 providing and laying the14 SWG powder coated MSperforated type cable tray having cross sectional dimension 150mmX50mm, the job includes providing of all accessories for erection and fitting. The job includes providing of skilled labours, tools and tackles to complete the job. 44 providing and fitting of maintenance free chemical free earthing using copper electrode of size 76 mm dia, 03 meter long connected with 50mmx6mm copper internal strip complete with excavatioin, civil works, cast iron cover with back fill compund along with 60 kg bag of back fill compund/sor compound (highly conductive, non corrosive moisture retaining chemical) complete. the voltage between neutral&earth not to exceed 0 volts and IR value less than 1 ohm. the earth resistanceshall be as per IS 3043. 45 copper strip of cross sectional size shall be 32mmx5mm which will be connected to the main distribution panel 46 Providing and fixing of shock proof and anti skid class A electrical insulation rubber sheet having minimum thickness 2 mm and can resist upto 3.3 kv. The item shall confirm to IS-1562-2006 47 Removing dry or oil bound distemper, water proofing cement paint andthe like by scrapping and sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete. 48 Wall painting with premium acrylic emulsion paint of interior grade, having VOC (Volatile Organic Compound) content less than 50 grams/ liter of approved brand and manufacture, including applying additional coats wherever required to achieve even shade and colour.Two coats
