REPAIR MAINT OF CENTRAL AC PLANTS PACKAGE AC PLANTS INSTALLED AT R AND DE DIGHI AND VRDE AHMEDNAGAR 06

Supply and Fix In repair Crank Case Heater for Voltas AC Plants suitable for model No. SM -185 complete all as specified and directed.

Supply and Fix In repair Compressor Oil Seal complete all as specified and directed.

Supply and Fix In repair Oil Screen Filter for Voltas AC Planrs suitable for model No.sm 185 complete all as specified and directed.

Supply and Fix In repair Pressure relief Valve 3/8'' BSP 350PSI for Voltas AC Plants 52 tr. ICTG Building complete all as specified and directed.

Material and labour for disconnecting electrical connections of motor located at the top of cooling tower, keep cables at safe custody for reconnection and dismantling and taking out fan blade assembly along with motor mounted on base frame at the top of cooling tower after cutting/dismentaling all nuts, bolts and fixtures from the mounting frame and removing whole assembly including motor and base frame from the top of cooling tower with the help of T&P for servicing of cooling tower, 20TR to 60 TR capacity including comprising of following complete all as specified and directed :- (i) Cleaning /scrapping of inner and outer surface of FRP basin, repair of damaged portion if any including FRP lining of all surfaces joints to avoid leakage including replacement of all nuts and bolts, joining all parts of basin complete, (ii) servicing cooling tower plant, cleaning complete plant with descaling solution, including servicing of cooling tower motor and fan and making the necessary alignment with motor, (iii) replacement of spares of suitable capacity if any after necessory work including greasing and replacement of nuts, bolts and preventing leakage if any by means of suitable adhesive etc complete all as specified and directed, (iv) taking out PVC fills blocks, cleaning and refixing as per existing location and channel direction, (v) servicing of spray header and sprinkler assembly complete & (vi) repair of water strainer complete. Note: Replacement of spares shall be measured and paid separately as "Supply only"

Supply only bearings for Fan Motor of Cooling Tower of Capacity 20 TR to 60 TR complete all as specified and directed.

Supply only Sprinkler Hub top and bottom portion with PVC Pipe and cap complete set for capacity 20 to 60TR complete all as specified and directed.

Supply only Hub top and bottom portion with PVC Pipe with FRP Coating and cap complete set for capacity 52 Tr Rotational Type with Bearing Set Clamp, Tie Road , Pannel , Bucckle etc complete all as specified and directed.

Supply only PVC fills (Big size) in colums of size 60 x 30 x 15 cm or next higher size as per existing specification and requirement complete all as specified and directed.

Supply only PVC fills (small size) in colums of size 60 x 15 x 15 cm or next higher size as per existing specification and requirement complete all as specified and directed

Supply & Fix in repairs 10 Micron Filter class G3 as per EN 779 for AHU complete all as specified and directed of following size:- a) 600mm x 600mm x 50mm

b) 590mm x 290mmx50mm

c ) 870mm x 720mm x 50mm

d) 840mm x 840mmx50mm

Material and labour for disconnecting electrical connections, refrigerent piping and water piping and servicing, repair and over hauling of AHU of capacity 12000 Cfm to 13000 Cfm, sectionalized construction of capacity 50 TR. including removing dust, dirt, foreign material deposited on cooling coil fins with suitable ditergent, cleaning / de-carbunising of pre and post air filters of shaft and reinstalled in same position with correct alignment after cleaning /repairing, removing all rust from shaft by machinery work, polishing maching to existing and rebalancing of shaft including servicing and testing of blower drum assembly for proper functioning and balancing including replacement of defective spares including supply and fixing minor spares required to achive noise free operation including testing, commissioning complete for achieving desired performance complete all as specified and directed. NOTE :- Spares required to be replaced for serving of AHU shall be measured and paid for separately as 'supply only' under respective item of BOQ here-in-after.

supply and fix in repair crankcase heaters of compressor as per existing specifications Accel compressor at site complete all as specified and directed.

Supply and fix in repair shaft seal assembly for vaious models of compressors as per existing specifications at site complete all as specified and directed.

Material and labour for descaling of shell and tube type water cooled condenser of capacity 52TR with MS shell and intergral copper tubes with safety valve with cleaning agent including nitrogen flushing / descaling compound and thorough cleaning with descaling nylon brush with rod and circulating by descaling pump including repalcement of gasket set, nuts and bolts and leak testing after descaling / cleaning of condenser unit (ICTG & Auditiourim) complete all as specified and directed.

Material and labour for chippinging of insuation and opening of end plate for cleaning and washout of foreign material and scale and deposits of chiller unit direct expansion , shell and tube type 15TR to 30TR TR capacity with cleaning agent including nitrogen flushing and through cleaning with brush with rod suitable size and dia and recirculating and complete cleaning nylon brush including replacement of gasket sets, nuts , bolts and EPDM insulation on both ends, faces matching to existing chiller insulation complete all as specified and directed.

Material and labour for disconnecting from main supply carefully squirrel cage induction motor 3 Phase, 415V AC from existing foundation and taking to workshop for servicing and necessary repair including replacement of unserviceable parts as ordered including supply and fixing minor required items like nuts, Bolts, washers, carry out Misc repairs and reassembling, testing and commisssioning the motor after repair including transportation from site to workshop and back all as specified and directed for the following capacity motor :- NOTE : (i) Cost of labour for replacement of bearigs shall be deemed to be included in qouted rate. Spares shall be measured and paid for separately as 'suply only' in respective item of BOQ. (a) 1HP to 2 HP.

Material and labour for disconnecting the electrical and mechanical connection of burnt electrical motor from the site / location, transporting to and from to work shop, rewinding of electrical motor/ pump motor winding polyster based super enamelled copper wire of same gauge of original one with proper class of insulation including varnishing by dismantling and removing the burnt cut copper winding wire, cleaning the slots of startor with petrol and brushes and heating the coil and remove air bubbles complete stator / rotor after rewinding and reassembling all parts including reinstalling connection to original position and testing on full load complete all as specified and directed for different capacity of motor as per following :- (a) 1 HP to 2 HP.

Supply only Ball bearing for squirrel cage induction motor (AHU) of capacity 1 HP to 7.5 HP complete all as specified and directed.

Supply and fix in repairs thermal expansion valve suitable for 50 TR chilled water Central type AC plant system all as per sample, including brazing at both ends all as required complete all as specified and directed.

Material and labour for locating and identifing gas and oil leakage and removing the leakage by repairing, brazing, flaring of tubings of central type AC Plant of capacity 5 TR to 26 TR including leakage testing, pressure testing with nitrogen, vaccumising complete system of central type AC plant with double stage vaccume pump of atmospheric pressure less than 28 to 30mm/HG and charging of refrigerant gas upto required pressure after satisfactory results complete all as specified and directed. Note : Nitrogen gas and refrigerant will be measured and paid separately as 'supply only' under respective item of BOQ.

Material and labour for checking and testing of electrical control panel of AC Plant for interlock panel wiring, detecting the fault / defects including replacement of minor burnt wires, lugs, terminals and making panel in workable condition including testing complete all as specified and directed.

Supply and fix in repair wet and dry bulb thermometer at A/C plant room complete all as specified and directed.

Supply only following spare parts of pump set complete all as specified and directed:- (a) Shaft bearing 3 to 5HP pump set as per existing.

(b) Shaft sleeve 3 to 5HP pump set.

(c) Impeller 3 to 5 HP pump set.

(d) Impeller Key 3 to 5 HP pump set.

(e) Mechanical Couplings for Pumpset 3 HP up to 5 HP pumpset

Supply and fix in repairs worn out HRC fuses (Cylindrical / DIN type / Bolted) conforming IS 13703 Part - II with high breaking capacity suitable for existing holders complete all as specified and directed for the following capacities :- (a) 6 Amps to 32 Amps.

(b)35 Amps to 100 Amps.

Supply and fix in repairs single phase preventer in electric panel board at central type AC plants all as per direction of Eng-in-charge complete all as specified and directed.

Supply and fix in repairs 3 pole power contactor, coil voltage 230 Volts/415 Volts for following capacity motors complete all as specified and directed:- (a) 12 Amps

(b) 25 Amps

(c) 32 Amps

(d) 18AMPS

Supply and fix in repairs ADDON Block 2 NO 2 NC. Sutible L&t Contractor electric panel board at central type AC plants all as per direction of Eng-in-charge complete all as specified and directed.

Supply and fix in repairs single phase preventer in electric panel board at central type AC plants Model - VSP D2 415 volts all as per direction of Eng-in-charge complete all as specified and directed.

Supply only R-22 Refrigerant gas in returnable company sealed cylinder of 61kg each with test certificate complete all as specified and directed. Note : (i) Hire charges of cylinder shall be deemed to be included in quoated rates. (ii) Refrigerant Gas (R-22) shall be incorporated under respective item of Sch (A) or where ever required.

Supply only R-407c Refrigerant gas in returnable company sealed cylinder of 10/45/50kg each respectively with test certificate complete all as specified and directed. Note : (i) Hire charges of cylinder shall be deemed to be included in quoated rates. (ii) Refrigerant Gas (R-407c) shall be incorporated under respective item of Sch (A) or where ever required.

Supply only Nitrogen Gas at required pressure for leak testing of central A/C plant complete all as specified and directed

Supply only Danffos Make Compressor Oil POE after flushing out old oil of compressor and testing commissioning complete all as specified and directed

Supply & Fix in Repair Filter Driyer Core with Complet Assembly for 48-1-25W End plate Alongwith Bragzing and welding work Included testing commissioning complete all as specified and directed.

Supply and fix in repairs "V" belt for power transmission of following sizes and existing specification / cross section complete all as specified and directed. (a) Size C-120

(b) Size A-37

(c) Size A - 32

(d) Size A-50

Supply and fix in repairs pressure differential control cutouts of central type AC plants and testing complete all as specified and directed. (a) Oil pressure cutout MP-55 Auto Cut in

(b) High pressure cutout MP-15 Dual Pressure Manual In

(c) Low pressure cutout MP-5 Dual Pressure Manual Cut In

(d) Deffrintional Water Pressure Switch Make Danffos

Supply and fix in repairs pilot solenoid valve assembly for central type AC plant as per sample complete all as specified and directed.

Supply and fix in repairs unservicable pressure gauge freon R22/ R407C 4" dia with tube to match & stop cock for range 0 to 150Psi complete all as specified and directed.

Supply and fix in repairs thermometer to condenser/chiller, inlet or outlet water pipes including addition alteration to pipe line for fixing thermometer Range 0 to 100 F complete all as specified and directed.

Supply only water pressure gauge 0 to 7 kg / cm2 any type complete all as specified and directed. Make Febig or equivant suitable makes as per site.

Supply and fix in repairs pressure relief valve of condensor 1/2" /5/8" BSP threaded suitable for 300 PSI complete all as specified and directed.

Supply, erection, testing and commissioning in repair of closed cell elastomeric nitrile rubber with aluminum foil laminated on one side, having thermal conductivity not exceeding 0.037 W/mK at mean temperature of 20° C as per EN 12667, moisture diffusion resistance factor or ‘µ’ value of minimum 7,000 for base insulation material without the foil as per EN 12086, fire performance such that it passes Class 1 as per BS476 Part 7 for surface spread of flame and also fire performance of V0, HB as per UL 94, 1996, density without the foil between 40 to 55 kg/cum. The insulation material shall be FM (Factory Mutual) USA approved and dust & fibre free. The Aluminium foil shall be 60 microns thick and its weight shall be 193 gsm as per EN ISO 2286-2, tensile strength 90 N / 15 mm as per EN ISO 527-3 with elongation > 10% as per EN ISO 527-3. All complete with 19 mm thick for supply air duct and 13 mm thick for return air duct complete with 28 swg aluminium clading complete all as specified and directed

Supply and fixing in repairs power & control wiring with PVC flexible copper cable single core of appropiate size as required for better functioning complete with PVC cable duct & lugs complete for DOL & star-delta feeder complete all as specified and directed.

Supply and fixing in repairs 3 pole MCCB 200 Amps 415 V 36 KA with adjustable type with breaking capacity 36 KA complete all as specified and directed

Supply and fix in repairs VAF meter of AC plant panel complete all as specified and directed.

Supply and fixing in repairs Digital Ammeter with CT for panel complete all as specified and directed.

Supply and fixing in repairs indication lamp red 230 V complete all as specified and directed.

Supply and fixing in repairs indication lamp yellow 230 V complete all as specified and directed.

Supply and fixing in repairs indication lamp blue 230 V complete all as specified and directed.

Supply and fixing in repairs indication lamp green 230 V complete all as specified and directed.

Supply and fixing in repairs indication lamp orange 230 V complete all as specified and directed.

Supply and fixing in repairs push button red with No/Nc element complete all as specified and directed.

Supply and fixing in repairs push button Green with No/Nc element complete all as specified and directed.

Supply and fix in repairs Add-on-block with 2 No & 2 NC to match the contactor complete all as specified and directed.

Supply and fixing in repairs overload relay 2.5 to 4.5 Amp complete all as specified and directed.

Supply and fixing in repairs 4 pole MCCB 250 Amps 415 V 36 KA with adjustable type with breaking capacity 36 KA complete all as specified and directed

Supply and fixing in repairs overload relay 10-13 Amp complete all as specified and directed.

Supply and fixing in repairs overload relay 6-9 Amp complete all as specified and directed.

Supply and Fix in repair 5A to 32A rating MCB single pole and neutral, 240V, 10kA, "C" curve, miniature circuit breaker suitable for inductive load of following poles in the MCB DB complete with connection, testing and commissioning etc complete all as specified and directed.

Supply and fixing in repairs overload relay 32 Amp complete all as specified and directed.

Supply and fixing in repairs 3 way Auto/Manual switch 22.5 mm dia complete all as specified and directed.

Supply and fixing in repairs current transformer of capacity 200/5 1.5 va complete all as specified and directed.

Supply and fixing in repairs current transformer of capacity 100/5 1.5 va complete all as specified and directed.

Supply and fix in repair CT Fan complete section Fan, Fan Dia-1200 mm, connected GI nut bolts and accessories suitable for 60 TR cooling tower complete complete all as specified and directed.

Material and labour in repair for Sub Zero for controlling & indicating humidity / temperature of central Plant along with humidity sensor length as per existing at site complete all as specified and directed.

Supply, installation, testing & commissioning in repairs Air cooled scroll type compressor 13 TR Danffos SM 185 semihermatically sealed scroll motor with internal overload protector, compressor mounted on existing base including connecting with existing refrigerant pipe line , integral refrigerant pipeing and wiring accessories as required complete all as specified and directed including comprising of following :- a) Auto /Manual single phasing protection, b) Compressor restart protection, c ) 10 sec - time delay between system, d) Short circuit protection, e) 5 degree C anti freeze protection, f) Display on micro control indicating compressor on crank case heater on / off, g) Entering/ leaving water temperature' h) Scroll chiller unit shall be suitable for 415 + 15% 50 C/S 3 phase AC supply, and Refrigerant used shall be R-407c suitable for existing system as mentioned in specifications of manufacturer. Hub Bulding Central AC Plants

Supply and fix in repairs Condensser Fan Blade 11 TR. Voltas Make AC Plants with Moulded Nut Sutaible for exacting model for Hub Bulding

Material and labour for rewinding of condenser fan motor capacity 11 TR. Condensser Fan Motor Voltas AC Plants Hub Bulding with supper enameled copper wire of same gauge including refixing and testing complete all as specified and directed.

Material and labour for painting of complete air conditioning plant equipments refrigerant/ water suction / discharge / liquid piping of any specification with paint one coat of approved quality after prepration of surface including concealed fitments e.g., condenser, chiller, valves etc as per IS colour code of Cental air cinditioning plants including writing MES / SM No complete all as specified and directed.

M&L C Sel and Tube type Chiller ( ICTG Bulding) Capacity 52 TR. Capacity Nitrogen Pressure Testing should be done once again to make sure that 13 tube inside the chiller are leakages, those 13 Tubes should be taken out and new tubes should be inserted in the chiller after fixing the new tube 13 nos, Nitrogen Pressure Testing of the chiller Should be done again and after making sure that there is no leakage, change the gasket of the End Plate and Suction plates of Both sides and ensure that Both the Circuits are different and Hold the Pressure for 48Hrs. 350PSIG . after doing the Nitrogen Pressure test again. After 24Hrs. of Vaccuming after pressure hold, the system should be prepared for gas charging . after gas charging and Complete testing, the Job will be considered testing complete after 7 Days of trial complete all as specified and directed.

Supply Installation of Expansion Valve for compressor capacity 11 TR as per existing specifications complete all as specified and directed.

Supply installation 2.5 Sqmm 4Core Flexible copper cable complete all as specified and directed.

M&L for Leak repairing of central AC Plant by leak testing, leak repairing, pressure testing with nitrogen vaccumising complete system of central AC plant with double stage vaccum pump to below atmospheric pressure 28 to 30mm/HG and charging of refrigerant gas upto required pressure after satisfactory results complete all as specified and directed. Note :- Nitrogen gas and refrigerant will be measured and paid separately.

Material and labour for Removing of old unservisible Ducting Canvas Cunnection for ICTG AHU No.1 &AHU No.-2 Including GI flanges 20 Gauges Making of size as per exacting AHU with Gasket, nutbolts wisher and zip complete all as specified and directed.

Material and Labour for in replacment of existing unservicable controller with MPVD, MPD, OF WATER COOLED Central Ac plantscomplete all as specified and directed.

Material and Labour for in replacment of existing unservicable controller with Display OF WATER COOLED Central Ac plantscomplete all as specified and directed.

Material and Labour for disconnecting and taking out of 11 TR voltas make out door unit including necessaryu piping and connected pipe line Safely removing of all electrical connection, copper piping, pumping down the refirigerant gas complete all as specified and directed.

Material and Labour for shifting and Refixing of 11 TR air cooled outdoor unit including brazing, suction and discharge pipe line, Both Line Insulation 18mm Nittriler Rubber including power connection cable from main supply, and communication cable outdoor to AHU, alongh with nitrogen pressure testing (holding for 24Hrs), replacement of dryer filter, vacumming and gas charging complete all as specified and directed.

Supply and fixing replacment of existing unservicable microprocesser based PCB board suitable for voltas 51 TR AC plants AHU and outdoor alongwith room sensor including Temperature cutoff cut in testing as per desire condtions complete all as specified and directed.

Material and labour for Removing of old unservisible Ducting Canvas Cunnection for Hub Building AHU No.1 & AHU No.-2 Including GI flanges 20 Gauges Making of size as per exacting AHU with Gasket, nutbolts wisher and zip complete all as specified and directed.

Material and labour for disconnecting electrical connections, refrigerent piping and water piping and servicing, repair and over hauling of AHU of capacity 28000. Cfm, sectionalized construction of capacity 34 TR. including removing dust, dirt, foreign material deposited on cooling coil fins with suitable ditergent, cleaning / de-carbunising of pre and post air filters of shaft and reinstalled in same position with correct alignment after cleaning /repairing, removing all rust from shaft by machinery work, polishing maching to existing and rebalancing of shaft including servicing and testing of blower drum assembly for proper functioning and balancing including replacement of defective spares including supply and fixing minor spares required to achive noise free operation including testing, commissioning complete for achieving desired performance complete all as specified and directed. NOTE :- Spares required to be replaced for serving of AHU shall be measured and paid for separately as 'supply only' under respective item of BOQ here-in-after.

Material and labour for descaling of shell and tube type water cooled condenser of capacity 34TR with MS shell and intergral copper tubes with safety valve with cleaning agent including nitrogen flushing / descaling compound and thorough cleaning with descaling nylon brush with rod and circulating by descaling pump including repalcement of gasket set, nuts and bolts and leak testing after descaling / cleaning of condenser unit complete all as specified and directed.

Supply only spare part for hot water generator of capacity 10KW TR to 50KW of Make as per existing make availale at site complete all as specified and directed :- (a) Heater Rod 3KW, suitable for 3 PH, 415V AC supply as per sample.

Supply only following spare parts of pump set complete all as specified and directed :- (a) Shaft bearing 3 to 5HP pump set as per existing.

(b) Shaft sleeve 3 to 5HP pump set.

(c) Impeller 3 to 5 HP pump set.

(d) Impeller Key 3 to 5 HP pump set.

Supply and fix in repairs 3 pole power contactor, coil voltage 230 Volts/415 Volts for following capacity motors complete all as specified and directed:- (a) 12 Amps to 18 AMPS

(b) 25 Amps 32 Amps

Supply and fix in repairs single phase preventor in electric panel board at central type AC plants complete all as specified and directed.

Material and labour for locating and identifing gas and oil leakage and removing the leakage by repairing, brazing, flaring of tubings of central type AC Plant of capacity 34 TR including leakage testing, pressure testing with nitrogen, vaccumising complete system of central type AC plant with double stage vaccume pump of atmospheric pressure less than 28 to 30mm/HG and charging of refrigerant gas upto required pressure after satisfactory results complete all as specified and directed. Note : Nitrogen gas and refrigerant will be measured and paid separately as 'supply only' under respective item of BOQ.

Supply and fix in repairs "V" belt for power transmission of following sizes and existing specification / cross section complete all as specified and directed. (a) Size A-45

Material and labour for checking and testing of electrical control panel of AC Plant for interlock panel wiring, detecting the fault / defects including replacement of minor burnt wires, lugs, terminals and making panel in workable condition including testing complete all as specified and directed.

Supply and Fix In repair Pressure relief Valve 3/8'' BSP 350PSI for Central AC Plants 34Tr complete all as specified and directed.

Supply only Ball bearing for squirrel cage induction motor (AHU) of capacity 1 HP to 7.5 HP complete all as specified and directed.

Supply and fixing in repairs current transformer of capacity 100/5 1.5 va complete all as specified and directed.

Supply and fix in repair Controller With PCB Card, And Display Air cooled Central Ac Plant Model No. ACDSO 34 DPMN 3x1 complete all as specified and directed.

M&L for Dismantling of unservicable ,damaged /wornout duct insulation & providing closed cell elastomeric nitrile rubber insulation with aluminum foil laminated on one side, having thermal conductivity not exceeding 0.037 W/mK at mean temperature of 20° C as per EN 12667, moisture diffusion resistance factor or ‘µ’ value of minimum 7,000 for base insulation material without the foil as per EN 12086, fire performance such that it passes Class 1 as per BS476 Part 7 for surface spread of flame and also fire performance of V0, HB as per UL 94, 1996, density without the foil between 40 to 55 kg/m³. The insulation material shall be FM (Factory Mutual) USA approved and dust & fibre free. The Aluminium foil shall be 12 microns thick and its weight shall be 193 gsm as per EN ISO 2286-2, tensile strength 90 N / 15 mm as per EN ISO 527-3 with elongation > 10% as per EN ISO 527-3 complete all as specified and directed. (a) 19 mm thick nitrile rubber thermal insulation

(b) 13 mm thick nitrile rubber thermal insulation

Supply and fix in repair Controller With MPVD, MPD, And Air cooled Central Ac Plant Model No. ACDSO 34 DPMN 3x1 complete all as specified and directed.

M&L for Dismantling of unservicable ,damaged /wornout 3-WAY TEMPERATURE CONTROL VALVE Supply and Fix in Repair electronic, self-balancing, pressure independent type dynamic balancing valve rated for minimum 25 bar working pressure with integrated 3- Way modualating control valves in a single body and actuator capable of accepting upto 10 V DC and up to 20 mA electric signal and provide similar transduced feedback output to control system duly insulated with FM approved highly- flexible, closed-cell thermal insulation of elastomeric foam based on synthetic rubber (NBR) of apppropriate thickness laminated with 12 micron aluminium foil facing with reinforced glass scrim along with adhesives and other necessary accessories complete all as specified and directed by engineer-in-charge. Make: Honeywell,Rapid Control, Danfoss, Advance, ANERGY for valve & Armacell, K-Flex, Aeroflex for insulation. NOTES: [i] Maximum close off pressure shall not be less than 6 bar for upto 50 mm valves. [ii] Maximum close off pressure shall not be less than 7 bar for 65 mm & above. (a) 100 mm NB

M&L for Dismantling of Unservicable, Damaged/ wornout, Supply, and fix in repairs Manual Balancing Valve precise balancing, double regulation type cast iron balancing valve 100 mm having FG 200 cast iron body conforming to IS 210: 2009, copper alloy trim, stainless steel 2 Cr. 13 stem, 2.4 MPa body test pressure & 1.6 MPa maximum working pressure and standard flange ends with necessary accessories complete all as specified and directed by engineer-in-charge. (a) 100 mm NB

(b) 80 mm NB

Supply and fix in repairs Add-on-block with 2 No & 2 NC to match the contactor complete all as specified and directed.

Supply and fixing in repairs overload relay 2.5 to 4.5 Amp complete all as specified and directed.

Supply and Fix in repairs of factory fabricated galvanized steel sheet metal (G.S.S.) round / rectangular ducting of following sheet thickness having zinc coating of 120 g/m² total on both sides and complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, volume control dampers, hangers, supports, etc. as per approved drawings and conforming to the latest edition of IS 655: 2006 & HVAC Duct Construction Standards - Metal and Flexible of SMACNA along with required scaffolding work to install the ducts at sitecomplete all as specified and directed for following :- (a) 18 G

M&L for Rewinding of electrical motors/ pump motors by dismantling and removing the burnt cut copper winding wire cleaning the slots of stator with petrol (taking down under item No 61) and brushes winding polyster based super enamelled copper wire of same gauge of original one with proper class of insulation including varnishing and heating the coil and remove air bubbles complete stator / rotor after rewinding reassembling all parts including reinstalling connection to original position and testing on full load complete all as specified and directed for different capacity of motor as per following :- (a) 2 to 5HP

Supply and Fix in repair printed curcit board (PCB) controller of blue star Package Unit as per existing Model as per site requirement complete all as specified and directed.

Material and labour for painting of complete air conditioning plant equipments refrigerant/water suction / discharge / liquid piping of any specification with paint one coat of approved quality after prepration of surface including concealed fitments e.g., condenser , chiller, valves etc as per IS colour code of Cental air cinditioning plants including writing MES / SM No complete all as specified and directed.

Supply and charging of scroll compressor oil POE 160P SZ after flushing out old oil of compressor and testing commissioning complete all as specified and directed.

Supply and fix in repairs thermal expansion valve suitable for 34TR . chilled water Central type AC plant system all as per sample, including brazing at both ends complete all as specified and directed.

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