REPAIR AND REPLACEMENT TO CENTRAL AND PACKAGE TYPE AIR CONDITIONING PLANTS, DUCT LINE WORK AND ALLIED WORK AT LC-I, LC-II AND LC-III, SITE A, B AND C AT ITR CHANDIPUR

Amount

Labour only for Pressure testing / leak arresting with dry nitrogen gas / oil charging vaccumising, incl replacing the unserviceable strainers all as required and testing complete for the Central type AC plant of capacity 75 TR ITR LC area, complete all as specified and directed. Note :- Refregerant Gas, strainers will be measured and paid seperately under supply only items

All as per serial item no.01 above but for Package type AC plant of capacity 5.5 TR to 16.5 TR at any location/building of ITR area

Supply only for Recharge/Top up refrigerant R- 22 in Central/Package type AC Plants of various capacities, complete all as specified and directed.

Supply only for Recharge/Top up refrigerant R- 410/413/407C/R134a or equivalent in various type of Package/Central type AC Plants of various capacities, complete all as specified and directed.

Supply and charging/top up of compressor oil in reciprocating type central AC plants, Type : HPL-68 or equivalent as per existing sample, complete all as specified and directed.

Supply, Fabricate and fixing of MS angle/MS plate/flat/rod for cooling tower frame, CT fan base, cooling tower ladders, and all supports made out of suitable size along with welding/MS nuts, bolts and washers, hinges, locking arrangement including painting with two coats of synthetic enamel paint over one coat of red oxide primer including removimg existing unserviceable rusted one, complete all as specified and directed.

M&L for repair to damage fiber of cooling tower by necessery cutting and patch work by casting to match the existing complete all as specified and directed.

M&L for Stainless steel nut & bolts M 8x40 with hexagonal or square heads at one end and screwed the other, or screwed both ends, each screwed end to be fitted with washers and one hexagonal or square nut, n exc 5cm long, complete all as specified and directed

M&L for Carrying out cleaning and de-scaling of iron deposited in shell and tube type condenser by using chemical suitable with the help of monoblock pump set , recommended by manufacturer manual of the respective plant complete with satisfactory for Capacity 75TR central type Scroll chiller AC Plant at LC-III, complete all as specified and directed. (Plant Make : Blue Star ) Note:- Descaling of all condensor units done in each job.

M&L for repairing to rusted out sheet of Outdoor unit for package AC by necessery patching work with 2 mm thick steel sheet with welding/ brazing ( Approx area of MS Sheet 0.75 Sqmtrs) to make complete working condition complete all as specified and directed

M&L for dismantling and repairing of pump set of capacity 12.5 HP for CHW/ condenser pump set, by dismantling pump and motor separately, cutting the burnt out winding from slots and rewinding the same by existing size and gauge of super enamalled copper wire including varnishing, heating, including replacing the gland packing , bearings and all rusted nuts and bolts, washers and reassembling , fixing the motor & pump at its position and connecting the suction and delivery water pipe and testing under working conditions, complete all as specified and directed.

All as per as above item no 11 here- in- before but 3.0 HP Capacity.

All as per as above item no 11 here- in- before but of capacity 1.5/2 HP

All as per as above item no 11 here- in- before but of capacity 1/.75 HP

M&L for servicing to squirrel cage induction motor 3 phase 415V, 12.5 HP. Kirlosker make or any others make by dismantling of motor from the pump set removing the stater/rotor separately, cleaning, varnishing, heating and drying re-erecting, aligning with the pump, testing, including replacing the bearing and bush, polishing and re-metalling the shaft including necessary heat treatment. Reassembling the motor and pump with new gland packing, supply and fix new gland nuts, bolts, with gland mounting nuts & bolts washers complete, painting the motor and pumps with two coats of synthetic enamel paint after preparing the surfaces all as directed by Engineer-in-charge. fixing the motor & pump on their own base and connecting the suction and delivery water pipes and testing with proper working condition, complete all as specified and directed.

All as per as above item no 15 here-in-before but induction motor capacity 3.0 HP.

All as per as above item no 15 here-in-before but induction motor capacity 2/1.5 HP.

M&L for dismantling and taking out unserviceable and defective parts of reciprocating compressor of chiller Units of Central type AC Plants of capacity 75 TR of any make and model after disconnecting the discharge & suction line removal of necessary electrical connection etc. Dismantling compressor body complete and carry out the repair work as per the following :- (a) Repairs to crank shaft, connecting rod, piston, piston pin valve plate by remetaling, cutting/grinding and polishing as required and by supply and replacing all spare parts with new one as required and directed. (b) Repairs /fixing by replacing of all new discharge and suction reeds, big end and small end bush, all bearing, all piston rings, capillary drier cum filter with new one all as specified and directed . (c) Repairs/fixing by replacing of all new kinds of gasket, washers, scappring made of Nylon/ Tuflon sheet/ rubber/fibre sheet as required with new one and all as directed. (d) Repair of Oil pump kit by , dismantling and cleaning, greasing oiling along with new gasket all as required and directed. (e) M&L for Repair/replacement of old u/s copper pipe line as per existing size and shape when found leaking/damage at the time of leak check including necessary flairing, brazing as required and replacement of end fittings made of copper including brass flange nuts, brass dead cap and brass pipe as per site requirement and as directed.( Note : - The cost of new Copper pipe is also included in the same job )

(f) Supply and fix in repair of all u/s rusted bolts, nuts and washers of any kind/made of any metalical/any size and shape as per site requirement with new one all specified and directed. (Note :- The cost of all types/sizes of new nuts , bolts and washers are included in the same job. (g) After the repair work re-assembling the plant and check for leak in system with the help of Nitrogen gas. in case of any leak is detected the repair is to be carried out without any extra cost nitrogen/refrigerant gas. (h) After leak repair release Nitrogen and charge with refrigerant gas and testing to be carried out. Note : The cost for Nitrogen gas for Leak test, Charging/top up of Compressor oil and refrigerant gas (R-22) and necessery spares will be measured & Paid separately against respective schedule.

Supply only Suction reed as per existing make and model .

Supply only Discharge reed as per existing make and model.

Supply only Main Bearing as per existing make and model

Supply only Thrust Bearing as per existing make and model

Supply only Piston Pin as per existing make and model.

Supply only Piston as per existing make and model.

Supply only Piston Ring as per existing make and model

Supply only Discharge and Suction Ring as per existing make and model.

Supply only Gasket Set as per existing make and model

Supply only liquid line filter as per existing make and model .

Supply only internal suction filter as per existing make and model

Supply only by pass solinoid valve oil valve as per existing make and model.

Supply only Loading/unloading solinoid valve as per existing make and model

S&F in repair water flow switch suitable for 75 TR water chillar AC Plant, complete all as specified and directed

Supply and fix as in repair drier filter as per existing make and model

Supply and fix as in repair chiller/condensor water senser as per existing make and model

Supply and fix as in repair oil pump as per existing make and model

Supply and fix as in repair chiller pressure switch as per existing make and model

Supply and fix charging valve of brass, size 3/8 inch and 1/4 inch as per existing size for Central type AC plant of capacity 24/27.5/30 TR including taking down old unserviceable one, complete all as specified and directed.

Supply and fix compressor oil heater as per existing size for Central type AC plant of capacity 75 TR including taking down old unserviceable one all as specified and directed.

Supply and fix water pressure gauge 8'' up to 0-14 kg/cm.sq along with fittings to be fitted on water pipe line including taking down old unserviceable one all as specified and directed

M&L for painting to complete chilled water type Central Air Conditioning plant of 3 x 75 TR capacity at Control Centre Bldg, including complete chiller unit, compressor, motor, condenser complete plant with two coat of synthetic enamelled paint including preparation of surfaces and as per colour code, complete all as specified and directed.

Material and labours for one coat of synthetic enamel paint over a coat of red oxide primer on steel surfaces over 10cm width of girth complete including preparation of old surfaces of steel by scrapping, rubbing, complete all as specified and directed

Servicing of electric control panel/compressure control pannel board of package AC 5 TR to 16.5 TR by taking out the burnt wire. Supply & fixing new wire of existing specification with clipping and socketing and dressing properly complete including replacement of the unserviceable spares, complete all as specified and directed Note- U/S spares to be measured and paid seperately as supply only items under this schedule.

S&F in repair oil seal, O ring, carbon bushing of shaft of central Type AC Plants compressor of 75 TR capacity, complete all as specified and directed

S&F MS pipe 150 mm dia heavy grade with all fittings laid in floors or fixed to walls and ceilings including taking down old MS pipe for Central AC Plant, complete all as specified and directed

S&F MS pipe 100 mm dia heavy grade with all fittings laid in floors or fixed to walls and ceilings including taking down old MS pipe for Central AC Plant, complete all as specified and directed

S&F in repair for Insulation of MS Pipe with PUF slab 30 mm thick and including applying bituminuous/CPRX compound and Aluminium cladding sheet with 26 gauge complete for size 65 mm dia MS pipe, complete all as specified and directed

S&F in repair for Insulation of M S Pipe with PUF slab 40 mm thick and including applying bituminuous/CPRX compound and Aluminium cladding sheet with 26 gauge complete for size 100 mm dia MS pipe, complete all as specified and directed

S&F in repair V Belt A-34/A-37/A-38/A-44/A-52, complete all as specified and directed

All as per above item no. 48 here-in-before but for B-79/B-71/B-61/B-34/84B52 V belt.

S&F in repair entering water temperature(EWT) sensor suitable for 24TR to 90 TR scroll type AC Plant, complete all as specified and directed

S&F in repair leaving water temperature(LWT) sensor suitable for 24TR to 90 TR scroll type AC Plant, complete all as specified and directed

Supply and fixing of of PVC Fills of size (600x300x150mm), blue colour, suitable for any type of cooling tower of central air conditioning plant, complete all as specified and directed

S&F in repair electronic timer switch 3-30 sec ,5 A,24 volt AC, complete all as specified and directed. (Make- Siemens/ L&T / Legrand / ABB /GIC or equivalent as approved)

S&F in repair 3P power contactor model no.3TS32/33 for AC circuit with AC Coils voltage 220 Volt, including NO & NC complete all as specified and directed (Make- Siemens or equivallet in L&T / Legrand / ABB or equivalent as approved)

S & F in repair Earth fault relay instant/ delayed trip CO relay output Blck & Red Model no. D2EFRI 110,240 Vac, DC trip sec 0.1 to 1.0 compelt all as specified and directed. Make :- Minilec/GIC

S&F in repair 3P power contactor model no. MNX 25 for AC circuit with AC Coils voltage 220 Volt, complete all as specified and directed (Make- L&T / Legrand / ABB /Siemens or equivalent as approved)

S&F in repair of single phase preventer 40 Volts in balance VSP II, complete all as specified and directed (Make-Minilec or equivalent as approved)

S&F in repair power contactor model no. MCX-12 4 pole for AC circuit with AC Coils voltage 220 Volt, complete all as specified and directed (Make- L&T / Legrand / ABB/Siemens or equivalent as approved)

S&F in repair Safety valve 300 PSI of copper material suitable for 25 TR to 90 TR capacity Central/package type AC plant, complete all as specified and directed

S&F in repair thermometer suitable for Central/package type AC plant as per existing make and model, complete all as specified and directed

S&F in repair three phase Control PCB for package type AC plant of 5.5 TR Capacity, complete all as specified and directed (Maker Blue Star / Voltas / equivalent as approved )

S&F in repair three phase Control PCB for package type AC plant of 8.75 TR Capacity, complete all as specified and directed (Maker Blue Star / Voltas / equivalent as approved )

S&F in repair Air sensor for package type AC plant of 5.5/8.75/11.0/16.5/26 TR Capacity, complete all as specified and directed

S&F in repair Coil sensor for package type AC plant of 5.5/8.75/11.0/16.5/26 TR Capacity, complete all as specified and directed

S&F in repair drier filter for package type AC plant of 5.5/8.75/11/16.5/26 TR Capacity, complete all as specified and directed

S&F in repair feed in terminal / Connector, complete all as specified and directed

S&F in repair fan capacitor of 10+-2% mfd capacity suitable for out door unit of package type AC plant of 5.5/8.75/11.0/16.5 TR Capacity, complete all as specified and directed

Supply and fix in repair MCB TPN 63 Amps 'C' series for connection of package/central type AC plant as main incommer, complete all as specified and directed

Supply and fix in repair MCB TP 16- 32 Amps 'C' series for connection of package/central type AC plant, complete all as specified and directed

Supply and fix V belt of suitable sizes for 5.5/8.75TR capacity Package type AC plant blower motor, complete all as specified and directed

M&L for replacement of U/S canvas cloth of package/centraltype AC planrs including provisiong of zip 150 mm lenth for opening and closing arrangements and properlly fasterners with bolts and nuts between the ducts, complete all as specified and directed

Supply and fixing GI tubing medium grade of 40 mm bore size with all fittings laid in trenches, floor, roof and wall and tank connection complete including cutting and thereading with all fittings like tee, elbow bend union reducer hex nipple etc, complete all as specified and directed

All as per serial item no. 72 here-in-before but bore size 25 mm

S&F in repairs gun metal gate valve of 40 mm bore size ISI marked with iron wheel head, screwed both ends for iron pipe, complete all as specified and directed

All as per serial item no. 74 here-in-before but bore size 25 mm

Supply and fix in repair PVC Ball valve 40mm bore (minimum wt 690 gms) ISI marked high presssure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe and fixed, complete all as specified and directed

All as per item no. 76 here-in-before but 25mm bore (minimum wt 455 gms)

Supply & Fix in repair CI butterfly valve PN 1.6 size of dia150 mm, complete all as specified and directed

Supply & Fix in repair CI butterfly valve PN 1.6 size of dia100 mm, complete all as specified and directed

Suppy and fix in repair 8.5 TR capacity Scroll type compressor by taking out existing unserviceable 8.5 TR capacity Scroll type compressor denfoss make working refrigerant gas R-22/407C from packagel AC plant of capacity 8.5/17 TR , replacement of compressor with new one and fixing of new compressor sealed unit in position to match with existing plant , as per existing, brazing of discharge and suction including testing of the plant, complete all as specified and directed

Supply and fix in repair MCCB 4 pole 63 Amps with fixed thermal and fixed magnetic release and breaking capacity 16KA, complete all as specified and directed.

Supply and fix in repair MCCB 4 pole 100 Amps with fixed thermal and fixed magnetic release and breaking capacity 25KA, complete all as specified and directed

Supply and fixing in repair MCCB 4 pole 250 Amps with fixed thermal and fixed magnetic release and breaking capacity 25KA, complete all as specified and directed

Supply and fix in repair thermal overload relay for relay range between 23 to 30 Amps, complete all as specified and directed

Supply and fix in repair MCB SP 6-32 Amps, C curve, complete all as specified and directed

Supply only digital hygro thermometer for monitoring temperature & humidity at AC plants, complete all as specified and directed

Supply and fix in repair Fan blade suitale for blower motor of cap 3 HP to 5 HP for outdoor unit of Package Ac Plant, complete all as specified and directed

Supply and fix in repair Digital type 3 phase ammeter/Voltmeter flush mounting of size 96mm x 96mm as per existing rating, complete all as specified and directed

Supply and fix in repair Analogue type 3 phase ammeter /Voltmeter flush mounting of size 96mm x 96mm per existing rating, complete all as specified and directed

Supply and fix in repair LED indicator lamp RYB, complete all as specified and directed

Supply and fix in repair suitable AHU shaft bearing, complete all as specified and directed

S&F in repair cooling tower CT fan motor 5 KW including all accessories required for fiiting of motor to cooling water, complete all as specified and directed.

Disconnecting cooling tower fan motor from the system, shifting to civil workshop, dismantling the electric motor and removing burnt out windings, cleaning the slots, rewinding with super enemelled copper winding wire as per existing gauge and size varnishing and drying complete, reassembling, replacing the ball bearings as per existing size and make, transporting to site and re-fixing at original position, connecting electrically and mechanically, testing for satisfactory working all as directed for 5 HP/900 RPM RPM 415 volts 3 phase AC induction motor of any make, complete all as specified and directed

S&F in repair rubber coupling of size L 110 for pump including taking down old from chiller pump/ condensor pump complete all as per existing model and make, complete all as specified and directed

S&F in repair rubber coupling of size L 110 /L140 for pump including taking down old from chiller pump/ condensor pump complete all as per existing model and make, complete all as specified and directed

M&L for dismenteling and taking down burntout electric motor from AHU / Package AC unit of capacity 15 HP, 3 pahse, 415 volts of any make and type, for necessary repair/rewinding, with supper enamel copper wire of appropriate gauge/size and weight /turn as per existing including providing insulation materials, varnising , heating all as directed, repalcement of worn out bearings and refixing to its original position with testing and commissioning, complete all as specified and directed

All as per as above item no.96 here-in-before but 3 HP capacity.

All as per as above item no.96 here-in-before but single phase 0.75 HP capacity.

Taking down unserviceable outdoor unit and supply and replacement of complete outdoor unit of 8.5 TR capacity,air cooled package type AC plant including necessary repair/fabrication of base plate and connection including servicing of plant testing complete all as specified and directed

Labour to Attaining breakdown of package AC plants VRF Ac Plant of 5.5/8.75/11.0/16.5/26 TR capacity and repair to breakdown and all parts and items of control panels , PCB, and accessories to keeping in perfect working condition complete all as specified and directed

Taking down unserviceable evaporator coil for package type ac and supply and replacement of complete evaporator coil of 8.5 TR capacity,air cooled package type AC plant including necessary repair/fabrication of base plate and connection including servicing of plant testing, complete all as specified and directed

Material and Labour for servicing VRF AC complete of Bluestar make of capacity 24/26 HP all indoor (07 Nos) and outdoor units complete all as specified and directed

Supply and Fix in repair Indoor large VRF caset controller (PCB) of Bluestar Make VRF AC Indoor Unit Model VLC48 as per existing model and type complete all as specified and as directed.

Supply and Fix in repair Mother Board/outdoor unit controller of Bluestar Make VRF AC Outdoor Unit of capacity24/26 incl software patching to make the plant functional complete all as specified and as directed.

Supply and Fix in repair capacitor drive of Bluestar Make VRF AC Outdoor Unit of capacity 10 HP incl required software patching complete all as specified and as directed.

Supply and Fix in repair capacitor drive board of Bluestar Make VRF AC Outdoor Unit of capacity 14 HP incl required software patching complete all as specified and as directed.

Supply and fixin repair Outdoor unit motors suitable for 26 HP outdoor unit as per existing model and type complete to make the plant functional complete all as specified and directed.

Supply and Fix in repair IVRF Bridge Rectifier of VRF AC Outdoor Unit complete all as specified and as directed.

Supply and fix in repair GREE display PCB with connector wire suitable for 26 HP VRF AC , indoor unit complete all as specified and directed by Engr-in-charge.

Supply and fix in repair Indoor unit motor suitable for 4 HP Indoor unit as per existing model and type complete to make the plant functional complete all as specified and directed.

Supply and fix in repair compressor drive board for 14 HP compressor of VRF AC system of cpacity 26 HP complete all as specified and directed.

Suplly and fix Top Fan cover of outdoor unit of capacity 26 HP to accommodate two fans on top of the outdoor unit complete all as specified and directed.

Supply and fix in repair Variable refrigerant flow air conditioning unit compressor of 14 HP capacity suitable for 26 HP VRF AC of model IVRFB-26THN complete all as specified and directed. Make - Siam Compressor Industry Co. Ltd or equivalent as approved

M&L for carrying out spray painting complete unit of Package unit Indoor & Outdoor of any make, model and capacity after dismantling, and painting on sheet metal enclosers interanally and externally with two coats of synthetic enamel paint of approved make and shade after preparation of surface, re-assembling and reconnecting the AC unit at its installed location, complete all as specified and directed

S&F UPVC pipe 150 mm dia (SCH-80) with all fittings laid in floors or fixed to walls and ceilings including taking down old pipe for Central AC Plant, complete all as specified and directed

S&F UPVC pipe 100 mm dia UPVC Pipes (SCH-80) with all fittings laid in floors or fixed to walls and ceilings including taking down old pipe for Central AC Plant, complete all as specified and directed

S&F in repair CPVC Drain pipe of size 40 mm size suitable for package type AC of any capacity including provision of requisite PVC fasteners, complete all as specified and directed

Supply and fix in repair Variable refrigerant flow air conditioning unit compressor of 10 HP capacity suitable for 26 HP VRF AC of model IVRFB-26THN complete all as specified and directed. Make - Siam Compressor Industry Co. Ltd.

M&L for exposed duct thermal insulation 50 mm thick thermocol including other binding like CPRX for fixing/bonding of thermocol and plastic and hassain clothes as covering mterials and finished with cement mortar / lath plaster with the help of wire mess of appropate size and finally painting two coat with suitable materials like sonosam/distamper or any other water resistance materials to match with existing surface complete all as specified and directed including taking down old unsv materials.

Servicing of electric control panel/compressure control pannel board of cenral AC plant 75 TR of existing make by replacing burnt wire as exisiting at site with new of same specification alongwith new base to hold relays, and any other fixtures which is deemed to fix in the control panel for its proper operation of AC system, with clipping and socketing and dressing properly complete including replacement of the unserviceable spares. Note-U/S spares to be measured and paid seperately as supply only items under this schedule .

Supply only Relay holder 8 pin channel mounting type as per existing

Supplu only relay 8 pin type as per existing model and type

Supply only timer switch as per existing model and type

Supply only denfoss make HP/LP cut out switch

Supply and fix as in repair Catch all filter suitable for water chillar AC plant of capacity 75 TR as per existing make and model complete all as specified and directed

DS ENTERPRISES (BID ID -3372695)

M/s LADHANIA BROTHERS (BID ID -3371135)

ELECTRO COMMERCIAL CO (BID ID -3369141)

M/SNeelachal Enterprises (BID ID -3372308)

Bansal And Co (BID ID -3375011)