MANNING AND OPERATION, REPAIRS AND ROUTINE MAINT OF CENTRAL AC PLANT AND COLD STORAGE INSTALLATION AT NAD, MWC, CCDT, CG COMPLEX AND INS VAJARBAHU AND OTHERS LOC ETC UNDER GE (NW) KUNJALI, COLABA, MUMBAI

Amount

Manning & operation for following Central AC Plants TPW and NAD run in two shift per day (shift 08 hrs) by Ref Mech (Semi Skilled) including maintaining record periodical minor maint/ repairs (ie daily check, monthly, quarterly and half yearly) with all consumable parts except for major repair and spare parts of central AC plants at TPW, NAD A-63 Building Naval Dockyard including daily cleaning of AC plants complete with cooling tower AHU & other accessories for 08 hours run daily in two shift including Sunday and Holidays from 0800 hrs to 1600 hrs. to 1600 hrs to 2400 hrs

NAD AC PLANT :- 02 Nos x 40 TR, Existing Make :- Voltas Model No ACC WC04000 MNT (a) Compressor Existing Make Voltas Model No ACC WC04000 MNT -02 Nos. (b) Compressor motor 60HP-02Nos. (c) Condenser/ chiller water pump set mono block -04Nos. (d) Air handling unit with blower motor -01No. (e) FRP Cooling tower with CT Fan- 01No. (f) Electrical control panel cubical type floor mounted with main switch MCB's voltmeter, Ammeter, Starter condenser etc. complete-01 Set. (g) Control devices such as expansion valve thermostat solenoid valves HP/ LP/ CP cut outs with panel, panel board installed gauges-01Set (h) Digital type thermometer-01Set (j) Air supply duct with grill diffusers dampers and re-heater, pre-heaters etc. complete-01Set (k) Condensers and Condenser piping, Chilled water piping lines 100/80/50mm with valves, water pressure gauge and water temperature gauge complete-01Set

Manning and Operation for package type AC plant by Ref Mech (Semi Skilled) of capacity 06 Nos x 11 TR, Existing Make :- Blue star at VAJARABAHU ND running daily round the clock (24 hrs) in 3 shifts ie (06.00 hrs to 14.00 hrs, 14.00 hrs to 22.00 hrs and 22.00 hrs to 06.00 hrs) for smooth functioning of entire system and to maintain specific temperature including daily cleaning area of AC plant complete including Sunday & Holidays.

Manning & operation of Central AC Plants in one shift per day (shift 08 hrs) operated by one Refg Mech (Semi Skilled) including maintaining record periodical minor maint/ repairs (ie daily check, monthly, quarterly and half yearly) with all consumable parts except major repair and spare parts of central AC plant CCDT (B) Naval Dockyard complete of 02 Nos x 7.5 TR capacity (Existing Make : Kirloskar Model AK- 3) with cooling tower AHU and other accessories (one running and one standby) for single shift of 08 hrs daily from 0900hrs to 1700hrs including Sundays & Holidays including maintain cleaness of AC plant Complete all as specified and directed by Engineer- in-charge.

Manning & operation of Central AC Plant in one shifts per day (each shift 08 hrs) operated by one Refg Mech (Semi Skilled) in one shift including maintaining record periodical minor maint/ repairs (ie daily check, monthly, quarterly and half yearly) with all consumable parts except major repair and spare parts of central AC plants condensing unit complete of 3 Nos. x 40 Ton (two running & one standby ) (Existing Make :- Voltas, Model No. ACWCURO0400MNT at MWC building No.173 (ND) including maintain cleaness of AC plant complete with cooling tower AHU & other accessories run for one shifts daily from (09.00 hrs to 17.00 hrs) including Sundays & Holidays Complete all as specified and directed by Engineer- in-charge.

Manning and Operation of Walk in Cooler (Mutton Point CG Complex Make :- Blue star) running round the clock in (three shifts) by Ref Mech (Semi Skilled) each shift of 08 hour ( 06.00 hrs to 14.00 hrs, 14.00 hrs to 22.00 hrs and 22.00 hrs to 06.00 hrs) daily including Sundays and Holidays including maintaining cleaness of AC plant of the following plants :- (a) 03 Nos cabinet/ rooms of Walk in cooler consisting total 09 Nos refrigeraion units having capacity of each unit 2 TR driven single phase, Emerson hermetically sealed compressor units model CR-1010 BCU10 ( 02 running & one standby in each walk in cooler room) for maintain the temperature range 08° C to 12°C RH 60% for eggs room. Make: Blue Star (b) 02 Nos Walk in cooler having refrigerant unit 06 Nos x 10TR each three phase hermetically sealed compressor Model LC-2120 (02 Nos running and one stand by in each walk- in- cooler) for maintaining the temperature range (-) 18°C to (-) 20°C RH 50% for fish/ mutton/ chicken room

Notes for item No 1.00 to 5.00- (i) Contractor shall submit ID proof, residential proof, bank A/C details to department and obtain approval of Engineer-in-Charge before employing a person as Ref Mech (ii) Ref/ AC mechanic shall be available as per the shift timings specified in the tender and he will report to JE E/M in-Charge. In case of emergency he will function according to their direction. If he is found absent or move without intimating to in-Charge or JE he will be treated as absent for the said shift and recovery of Rs 1500/- per shift shall be affected. (iii) Payment as per quoted rate shall also be deducted in addition to the penalty as specified above. (iv) Contractor shall submit the labour licence & Copy of GST Regn registered number issued by concerned authority. (v) The payment shall be made to employees on or before 10th of every calender month. Payment to employees shall be done by crossed cheque / RTGS / NEFT / IMPS through Aadhar card linked Bank Account only and it shall not be less than minumum fair wages and statutory requiments such EPF and ESI as per Act in vogue. (vi) The rate quoted by the contractor shall be inclusive of life insurance for the tradesmen employed by him in case of untoward incident such as injuries fracture or casualty while on duty (vii) Surprise check will be carried out by department representative and if any employes is not available at his working place, he will be treated as absent. (viii) Contractor has to submit the list of employees including reserve alongwith police verification, Aadhar card, Aadhar card linked Bank Account No and relevant documents as mentioned in PS to the Engineer-in-Charge alongwith performance security before issue work order.

(ix) Contractor has to submit proof of payment of EPF made by his alongwith RAR failing which RAR will not be progressed for payment (x) Contractor has to employ the number of labours per day as intimated by the Engineer-in-Charge for which he has to make alternative arrangement. (xi) The rates quoted by the contractor shall be deemed to be included provision of all latest labour laws / regulations including all relevant taxes as applicable. (xii) Contractor shall quote the rates considering their monthly leaves, releiver etc as per labour laws and nothing extra shall be paid on account of the above. In case of absence of staff/tradesman from duty, payment of that day will not be paid. In addition to that a penalty of Rs 1500/- per day per person will be recovered from contractors dues. Also in case of long absence (more than one week) of staff/tradesman, the penalty shall be recovered including Sundays & Holidays if any. The contractor shall have no claim on this account. (xiii) Contractor has to supply two sets of Tools and Plants (as applicable) to the labours employed by him and should be placed with the safe custody of department. Rates quoted shall be deemed shall be included as part of contractors profit.

(xiv) If the quoted amount is less than the estimated cost given at SCH A Note at Page No 14 the lowest bidder will have to depost FDR/BGB as elaborated herein after in favour of Accepting Officer within 07 days of opening of financial bid (cover No 2). (xv) The deposited amount shall be the difference between estimated cost given at SCH A Note at Page No 14 and amount quoted by lowest bidder for respective item. FDR/BGB shall be released only after satisfactory completion of work. If the contractor fails to pay minimum wages to employees, the department shall have right to with hold the said amount which will beverified by GE. The decision of Accepting Officer regarding amont to be withheld shall be final and binding. The withheld amount will be utilised by GE for payment to employees if contractor fails to pay minimum wages and balance amount if any shall only be released. If the lowest bidder fails to deposit the amount as stated above within 07 days, the contractor shall be banned for 06 months & his bid shall be rejected. The contractor shall submit 03 Nos of BGBs/FDRs of equal amount as mentioned above. The BGBs/FDRs validity shall be 04 months, 08 month & 12 months respectively for the purpose of encashment release as the case may be. (xvi) The rates quoted shall be inclusive of suitable reliver wherever sundays & holidays are mentioned for working. (xvii) Quoted rates should include Stationary,Uniform,Shoes,log book and all safety equipments/ Harness which shall be included as part of contractors profit.

Labour only for repair/overhauling and including replacement of unserviceable spares of AC Plant compressor reciprocating type model 5 H 40 OF VOLTAGE Make by dismantling complete assembly, after pumping down refrigerant R-22, checking of all spares and segregate of serviceable and unserviceable spares overhauling the compressor including replacement of unserviceable spares, also including machining of crank shaft bearing, polishing, replacing of gaskets packing, reassembling complete and recharging of pumped down Refrigerant, also charging of additional refrigerant upto the required pressure & topping up if required to maintain the required standing charged pressure of compressor oil and gas, testing for smooth functioning etc,Complete all as specified and directed by Engineer- in-charge. Location :MWC AC PLANTS (Note: Cost of all the elements (material cost as well as labour cost) for making the compressors completely functional except the following shall be deemed to be included in the quoted rates : (a) Supply only spares for compressor reciprocating type model 5 H 40 of existing Make included under item Nos 06.01 to 06.17 here-in-after. (b) Supply only additonal refrigerant required for recharging of pumped down refrigerant, if required and paid under relevent item here-in-after. (c) Supply only compressor oil for topping up, if required and paid under relevent item here-in-after.

Crank shaft

Piston

Oil rings

Shaft seal assembly

Liner assembly

Oil pump assembly

Rockers arm

Loader/unloader spring

Piston rings

Suction valve reeds

Discharge valve reeds

Oil filter

Suction strainer

Oil pressure regulating valve

Connecting rod

Gasket set

Compressor safety valve

Labour only for repair/overhauling and including replacement of unserviceable spares of AC Plant compressor reciprocating type model 5 H 60 OF VOLTAGE Make by dismantling complete assembly, after pumping down refrigerant R-22, checking of all spares and segregate of serviceable and unserviceable spares overhauling the compressor including replacement of unserviceable spares, also including machining of crank shaft bearing, polishing, replacing of gaskets packing, reassembling complete and recharging of pumped down Refrigerant, also charging of additional refrigerant upto the required pressure & topping up if required to maintain the required standing charged pressure of compressor oil and gas, testing for smooth functioning etc, Complete all as specified and directed by Engineer- in-charge. Location :NAD AC PLANTS (Note: Cost of all the elements (material cost as well as labour cost) for making the compressors completely functional except the following shall be deemed to be included in the quoted rates : (a) Supply only spares for compressor reciprocating type model 5 H 40 , Make : VOLTAGE included under item Nos 7.01 to 7.17 here-in-after. (b) Supply only additonal refrigerant required for recharging of pumped down refrigerant, if required and paid under relevent item here-in-after. (c) Supply only compressor oil for topping up, if required and paid under relevent item here-in-after.

Crank shaft

Piston

Oil rings

Shaft seal assembly

Liner assembly

Oil pump assembly

Rockers arm

Loader/unloader spring

Piston rings

Suction valve reeds

Discharge valve reeds

Oil filter

Suction strainer

Oil pressure regulating valve

Connecting rod

Gasket set

Compressor safety valve

Pumping down the compressor and transfer existing refrigerent gas complete for overhauling of compressor reciprocating open type model FK - 4 Kirloskar Make 2 x 7.5 TR Capacity, dismantling complete assembly & replacing of minor unserviceable parts including machining of crank shaft boring polishing etc replacing of gaskets packing reassembly and recharging of pumped down refrigerant & topping up if required to maintain the required standing pressure charging of compressor oil complete testing for smooth functioning etc.at CCDT ND complete all as specified and directed by Engineer- in-charge. (Note : Major spare parts, compressor oil and refrigerant gas for topping up will be paid separately )

Material and labour for cleaning of cooling coil section of AHU for descaling and providing 02 Nos.15mm Tee outlet for local circulation of MAIC solution in the cooling coil (separate container and pump set of appropriate capacity to be used for circulation) pH value of solution to be kept at 4 & checked at an interval of 01 hr. duration process the scalgum / WS / Cleansol or equivalent solution to be used for descaling if ph value remains less than '7' flush with fresh water added to sodium carbonate till pH value attains '7' refix the coil section in position minor repairs to be carried out in AHU Coil bins to be cleaned by scalgum solution by spraying the solution with washing pump up to required level, AHU and Complete all as specified and directed by Engineer- in-charge for the followings :-

AHU of 2 x 50TR Capacity AC Plant at NAD A-63 Naval Dockyard

Dismantling AHU of 2 x 60TR TR capacity AC plant carefully by removing side and top panel removing unserviceable blower shaft bearings,removing motor & blower assembly, replacement of new AHU blower shaft bearings reassembling blower assembly and refixing electric motor & top side panel in original position with new nut bolts washers & shafts keys & checking the shafts balancing & testing for smooth running complete all as specified and directed by Engineer- in-charge. at NAD A-63 Naval Dockyard.

All as per item No 11.00 but for 2 x 7.5 TR AC Plant at CCDT(ND)

All as per item No 11.00 but for 3x 40TR AC Plant at MWC Bldg No 173(ND)

Material and labour for dismantling cooling tower by removing CT Fans, sprinklers, PVC filler and clean cooling tower body by removing scale , dust, dirt and refix PVC filler by cleaning with diluted HCL solution reassembling, connecting , cleaning external surface and applying two coats of approved synthetic enamel paint including writing SM number/ marking and testing etc Complete all as specified and directed by Engineer- in-charge for the following capacity cooling towers for the following :-

Cooling tower of 2 x 50 TR Capacity at NAD A-63 Naval Dockyard

Cooling tower of 6 x 7.5 TR Capacity at A - 14 (Naval Dockyard)

Cooling tower of 3 x 40 TR Capacity at MWC Bldg. No. 173.(Naval Dockyard)

Supply and fixing in repair of unserviceable / worn-out 'V' Belt of AHU's complete all as specified and directed by Engineer- in-charge.

Supply and fixing in repair of unserviceable / worn-out rubber coupling suitable for compressor shaft and motor shaft Complete all as specified and directed by Engineer- in-charge.

Taking out old unserviceable cooling tower fills sheets of 2X50 TR from the site and supply and fix new fibre fills sheet of same size for cooling tower as per the existing at site and complete all as specified and directed by Engineer- in-charge at NAD A-63 Naval Dockyard

Taking out old unserviceable cooling tower nozzles and supply and fix new cooling tower nozzles suitable for 2x 60 TR Mihir make cooling tower as per existing at NAD A-63 Naval Dockyard complete all as specified and directed by Engineer- in-charge

Material and labour for disconnecting condenser for descaling & plugging them & providing of 15 mm tee out let for local circulation of mild acid solution in the condenser (separate container and small pump set to circulate diluted acid solution to be used) pH value of solution to be circulated & to be kept 4 and checking frequently i.e. every one hour during the operation Scalgun WS solution to be used for descaling purpose after 2 to 3 hours of cleaning if ph value remains less than 7 flush with fresh water mixed with sodium carbonate tubes and cleaning with nylon brush after closing the end covers, circulating diluted acid solution as specified above & pH value to be maintained as above & flushing the same with fresh water including recharging of stored refrigerant up to required pressure complete all as specified & directed by Engineer-in-Charge of for the following :-

Condenser of 2 x 50TR Capacity AC Plant at NAD A-63 Naval Dockyard

Condenser of 2 x 7.5 TR Capacity AC Plant at CCDT (ND)

Condenser of 3 x 40TR Capacity AC Plant at MWC Bldg. No.173(ND)

Material and labour for disconnecting for Chiller descaling & Plugging them & providing of 15 mm tee outlet for local circulation of mild acid solution in the Chiller (separate container and small pump set to circulate diluted acid solution to be used) pH value of solution to be circulated & to be kept 4 and checking frequently i.e. every one hour during the operation Scalgun WS solution to be used for descaling purpose after 2 to 3 hours of cleaning if ph value remains less than 7, flush with fresh water mixed with sodium carbonate tubes and cleaning with nylon brush after closing the end covers, circulating diluted acid solution as specified above & pH value to be maintained as above & flushing the same with fresh water including recharging of stored refrigerant up to required pressure complete all as specified & directed by Engineer-in-Charge of for the following :-

Chiller of 2 x 50TR Capacity AC Plant at NAD A-63 Naval Dockyard

Pumping down the existing refrigerant from the condensor and carrying out the leak test of plant with the pressure of Nitrogen gas and monoitoring for 24hrs asses leakages by brazing & replacement of necessary gasket wherever required including copper tubes of suitable size vacumizing of the plant by vaccum pump finally reharging of existing refrigerant gas to the plant and topping up of refrigerant if required to maintain the standard pressure etc complete including testing of the plant for smooth functioning Complete all as specified and directed by Engineer- in-charge. (Note: Refrigerant required for topping up will be measured and paid separately under relevant items)

Rewinding of unserviceable electric motor 3 phase 50 Hz 415volt of following capacity pump set complete comprising as under :- (a) Disconnecting & removing the electric motor from installed position including, loading, unloading and transporting to approved workshop. (b) Taking out the existing burnt winding from the motor including rewinding complete with super enameled copper winding wire of existing gauge including all insulating material such as insulation paper, sleeves, tape, varnish etc. complete for class 'F' insulation. (c) Transporting the motor back to the location, reinstalling in original position including alignment, electrical & water connection, commissioning and testing for 8hours continuously to check the RPM etc. to the satisfactory performance etc Complete all as specified and directed by Engineer- in-charge. NOTE: Any damage caused during handling will be made good by contractor without any extra cost to department

7.5 HP Chiller / Condenser Water Pump Motor .

15 HP Chiller/Condenser Water Pump Motor.

5.0 HP Chiller/Condenser Water Pump Motor.

3.0 HP Chiller/Condenser Water Pump Motor.

10 HP Condenser/Chiller Water Pump Motor.

15 HP Compressor Motor .

60 HP Compressor Motor .

40 HP Motor.

50 HP Motor.

25 HP Motor.

Overhauling of Monoblock pump set after removing from the base plate, disconnecting from pipe line, dismantling the pump set, replacing unserviceable gland packing, gun metal bush bearing water seal applying grease etc. complete and reassembling the pump set connecting with pipe line reconnection of electric supply, including buts bolts, gaskets etc. complete testing of pumps for smooth functioning with following capacity of pumps and motors complete all as specified and directed by Engineer- in-charge:-

7.5 HP Chiller / Condenser Water Pump

15 HP Chiller/Condenser Water Pump

5.0 HP Chiller/Condenser Water Pump

10 HP Condenser/Chiller Water Pump

Over hauling sevicing of electric motor after removing from the base foundation including disconnecting of electric connection and replacment of unserviceable ball bearing complete and reassembling, realignment and reconnection of electric supply complete and testing on load for smooth functioning of following capacity motors complete all as specified and directed by Engineer- in-charge:-

15 HP Motor .

60 HP Motor .

40 HP Motor.

50 HP Motor.

25 HP Motor.

10 HP Motor

Supply and charging refrigerant R-22 gas in AC plant system as per requirement complete all as specified and directed by Engineer- in-charge

Supply only refrigerant R-407(a) gas as per requirement, Complete all as specified and directed by Engineer- in-charge.

Replacement of compressor oil with new compressor oil Complete all as specified and directed by Engineer- in-charge.

Material and labour for repairs to Microprocessor of 50/60 TR Capacity chiller unit including replacing diods , transistors and wiring etc for AC Plant at NAD A-63 Naval Dockyardall Complete all as specified and directed by Engineer- in-charge.

Material and labour for Expansion valve of 50TR/60TR chiller unit including taking down old unserviceable valve complete all as specified and directed by Engineer-in-Charge .

Material and labour for Expansion valve of 30/40TR chiller unit including taking down old unserviceable valve complete all as specified and directed by Engineer-in-Charge.

Material and labour Expansion valve of AC plant capacity 7.5/15 TR including taking down old unserviceable valve complete all as specified and directed by Engineer-in-Charge.

Taking down old unserviceable shaft seal assembly complete and Supply and fix new shaft seal assembly suitable for 15/7.5 TR Capacity chiller unit all as specified and directed by Engineer-in-Charge .

Taking down old unserviceable CI butter fly valve and supply and fix new CI Butter fly valve slim seal design with nitrile rubber lined seat with clutch lever (p10)as per (ISI Marked) cast iron, PN 1.6, class 125, as per IS 13095: 1991 of the following size complete all as specified and directed by Engineer- in-charge:-

Taking down old unserviceable Non Return valve and supply and fixing new CI Non Return valve (PN 1.6) as per IS 5312 (Part 1): 2004, of the following size complete all as specified and directed by Engineer- in-charge

Taking down old unserviceable Strainer of any make and size and supply and fixing new Strainer of the following size complete all as specified and directed by Engineer- in-charge

Supply and fixing Condensor safety valve suitable for chiller unit all as specified and directed by Engineer-in-Charge.

Material and labour for HP cut out including taking down old one complete all as specified and directed by Engineer- in-charge.

Material and Labour for LP cut out including taking down old one complete all as specified and directed by Engineer- in-charge.

Material and labour for oil pressure cut out controls for compressor including taking down old one complete all as specified and directed by Engineer- in-charge.

Removing old unserviceable power contactor and supply & fixing new power contactor MNX -32 Complete all as specified and directed by Engineer- in-charge.

Removing old unserviceable power contactor and supply & fixing new power contactor MNX -40 Complete all as specified and directed by Engineer- in-charge.

Removing old unserviceable power contactor and supply & fixing new power contactor MNX-18 Complete all as specified and directed by Engineer- in-charge.

Removing old unserviceable contactor and supply & fixing new power contactor ML-2 Complete all as specified and directed by Engineer- in-charge.

Removing old unserviceable contactor and supply & fixing new power contactor ML-3 Complete all as specified and directed by Engineer- in-charge.

Removing old unserviceable contactor and supply & fixing new power contactor ML-4 Complete all as specified and directed by Engineer- in-charge.

Removing old unserviceable contactor and supply & fixing new Auxiliary contactor Complete all as specified and directed by Engineer- in-charge.

Removing old unserviceable timer from compressor panel and supply & fix Timer 800 SD of Simens make for Compressor motor Complete all as specified and directed by Engineer- in-charge.

Removing old unserviceable timer and supply & fixing GT Timer of L&T make for Condenser motor Complete all as specified and directed by Engineer- in-charge.

Replacement of bimetal over load relay of range 14-23 Amps direcectly operated suitable for 10 HP motor Complete all as specified and directed by Engineer- in-charge.

Replacement of bimetal over load relay of range 9-15 Amps direcectly operated suitable for 5 HP motor Complete all as specified and directed by Engineer- in-charge.

Taking down old unserviceable AHU Blower and supply & fixing new AHU Blower Complete all as specified and directed by Engineer- in-charge.

Taking down old unserviceable AHU Blower Drum and supply & fixing new AHU Blower Drum Complete all as specified and directed by Engineer- in-charge.

Taking down old unserviceable AHU Blower shaft and supply & fixing new AHU Blower shaft Complete all as specified and directed by Engineer- in-charge.

Taking down old existing MS pipes supply, lay and welding MS pipes heavy grade with all fittings laid in floors or fixed to walls and ceilings etc of following sizes Complete all as specified and directed by Engineer- in-charge.:

Taking down old existing GI pipes supply, lay and welding GI pipes heavy grade with all fittings laid in floors or fixed to walls and ceilings etc of following sizes Complete all as specified and directed by Engineer- in-charge.:

Removing the unserviceable liquid line valve of size 15 mm from the liquid line after pumping down the compressor & supply and fixing new liquid line valve 15 mm including connected works as required for smooth functioning of AC plants complete all as specified & directed by Engineer-in-Charge

Removing the unserviceable liquid line valve of size 25 mm from the liquid line after pumping down the compressor & supply and fixing new liquid line valve 25 mm including connected works as required for smooth functioning of AC plants complete all as specified & directed by Engineer-in-Charge

Removing unserviceable thermostat of central AC plant & supplying and fixing new thermostat of range 5 degrees centigrade to 25 degrees centigrade complete with all accessories all as specified & as directed by Engineer-in-Charge

Removing the unserviceable solenoid valve assembly 5/8" flare size and Supply and fix new solenoid valve assembly 5/8" suitable for AC plant of various capacities Complete all as specified and directed by Engineer- in-charge.

Removing the unserviceable solenoid coil and Supply and fixing new solenoid coil suitable for AC plant of various capacities Complete all as specified and directed by Engineer- in-charge.

Removing the unserviceable chiller water sensor and supplying and fixing new chiller water Sensor of suitable capacity Complete all as specified and directed by Engineer- in-charge.

Removing the unserviceable pressure Sensor HP / LP / OP from and supplying and fixing new pressure Sensor of suitable capacity complet all as specified & directed by Engineer-in-Charge

Removing the unserviceable pressure gauges HP / LP / OP from existing position and supplying and fixing new pressure gauge of capacity 0 to 30 Kg / square centimeter complete with necessary accessories Complete all as specified and directed by Engineer- in-charge.

Removing the unserviceable water pressure gauges from water line & supplying and fixing new water meter up to pressure 0 to 7 Kg / square centimeter complete with all accessories Complete all as specified and directed by Engineer- in-charge.

Material and labour for scraping cleaning and preparation of external surface and painting complete installation at 2 X 7.5 TR (15 TR capacity) including compressor motor piping cooling tower condenser AHU and panel Board etc with two coats of synthetic enamel paint over a coat of red oxide zinc chromate primer as per ENCs colour code as given including writing to SM & MES numbers Complete all as specified and directed by Engineer- in-charge. Location : CCDT ND

All as per item No 68.00 above but of 3 x 40 TR (120 TR Capacity) Location : MWC Bldg. No.173

All as per item No 68.00 above but for 2 x 50TR (100 TR Capaciry)AC Plant at NAD A-63 Naval Dockyard

All as per item No 68.00 above but for 3 x 10 TR (30 TR Capaciry) AC Plant at Dockyard offr mess

Taking down old unserviceable AHU pre filter and Supply and fix new pre filters efficiency 90% down to particular size of 10 micron double knitted twisted polymer fabric (washable) rated with press drop of 6 mm WC, including aluminium anodized frame work of 16 SWG to be mounted in AHU filter assembly size as per existing.

Taking down old unserviceable aluminium rectangular duct grill of any size and make and supply and fix new fresh air /return air of aluminium rectangular grills complete with wooden frame work made out of II nd class hard wood, volume control damper including gasket and connected accessories Complete all as specified and directed by Engineer- in-charge.

Supply, errect and fabricated rectangular square duct made out of 24/22 gauge GI sheet in L shaped hollow profile including all accessories such as corner, carriage bolt hangers, gasket and seal the longitudinal joints with and including approved sealant Complete all as specified and directed by Engineer- in-charge.

Taking down old unserviceable Duct insulation from any surface and supply and fix nitrile rubber insulation (Armaflex) of one layer of 19mm thickness sticking on Duct surface by using approved adhesive and sealing the joints by weather proof tape Complete all as specified and directed by Engineer- in-charge.

Material and Labour for pipe insulation, cleaning the pipe surface with steel wire brush, apply one coat of zinc chromate paint and allowed to dry, apply two coats of cold setting adhesive compound on around surface of pipe, stick expanded Nitrile 50 mm thick or nitrile sheets tightly pressed, wrapped with one layer of aluminium cladding with 26 guage AL sheet suitable for covering the surface of pipe line insulation for protection against the demage of PUF insulation slab complete for 250 mm pipe complete all as specified and directed by Engineer- in-charge.

Ditto- all as per item No 73.00 above but 200 mm dia.

Ditto- all as per item No 73.00 above but 150 mm dia.

Ditto- all as per item No 73.00 above but 125 mm dia.

Ditto- all as per item No 73.00 above but 100 mm dia.

Ditto- all as per item No 73.00 above but 80 mm dia.

Ditto- all as per item No 73.00 above but 65 mm dia.

Ditto- all as per item No 73 above but 50 mm dia.

Ditto- all as per item No 73.00 above but 40 mm dia.

Suuply and fixing in repairs volume control damper made out of galvanized iron or anodized aluminium with overlapping leafs to avoid any leakage from the damper as per existing at site complete all as specified and directed by Engineer- in-charge.

Suuply and fixing in repairs leather type canvas in AHU duct of any size as per existing at site Complete all as specified and directed by Engineer- in-charge.

Cleaning of Air handling ducts(GI/AL) internally by using special T&P like robortic arm, air compressor, air jet nozzles, flipper, vaccum pump and a suction blower with hepa filter and check before and after the cleaning Complete all as specified and directed by Engineer- in-charge.

Taking down (GI/AL) or any other type of false ceiling/ perforted board and Material and labour new perforted sheet of size 2x2 sqft complete all as specified and directed by Engineer- in-charge.

Supply and fixing in replacement of MCCB 4 pole, 415V, Adjustable type, 400 Amps with breaking capacity 36 KA complete all as specified and directed .

Supply and fixing in replacement of MCCB 4 pole, 415V, Adjustable type, 250 Amps with breaking capacity 36 KA complete all as specified and directed .

Supply and fixing in replacement of MCCB 4 pole, 415V, Adjustable type, 200 Amps with breaking capacity 36 KA complete all as specified and directed .

Supply and fixing in replacement of MCCB 4 pole, 415V, Adjustable type, 160 Amps with breaking capacity 36 KA complete all as specified and directed .

Taking down old u/s AHU body and S and F of factory fabricated double skin power coated 25mm puf insulated for AHU bosy including proper door handles ,corner supports cuttings, blending, welding/ brazing, wooden work, sturtural support complete all as specified and directed.

Supply and fixing in repairs AHU cooling coil of any size and any rows as per existing at site complete all as specified and directed.

Supply and fixing in replacement of u/s sluice valves flanged end, cast iron body, flanged and drilled and non rising stainless steel spindle with hand wheel, T head bolt and nut, long body, class PN 1.6 conforming to IS 14846 of 2000 for following sizes including all flange joint with rubber gasket or fiber board, nut and washers complete incl accessories all as specified and directed

80mm bore

100 mm bore

Chakshu Enterprise (BID ID -3110707)

Shree Ayyappa Engineering (BID ID -3115560)

shakti engineering and electrical works (BID ID -3115110)