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Military Engineer Services - MES Tender
Electrical and Electronics
Electrical Works
Eprocure
Opening Date5 Jul 2024
Closing Date3 Sep 2024
Tender Amount₹ 41,00,000
Costs
EMD
₹ 82,000Document Cost
₹ 500Tender Fee
Refer Documents
Summary
81112 Rep Maint Of Central Ac Plant Inhs Dhanavantri Under Ge Minniebay
Description
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Contact
Tender Id
2024_MES_664284_1Bid Award Id
ViewTender No
81112 Rep Maint of Central AC Plant INHS Dhanavantri under GE MinniebayTender Authority
Military Engineer Services ViewPurchaser Address
-Website
http://http://mes.gov.in/
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Documents
BOQ Items
Air cooled Air-conditioning Plant unit of capacity 11 TR
12
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M&L for De-scaling of condenser unit of AC plant by draining condenser water from equipments and pipes. Recirculating water inside the pipes with descaling liquid solution(Carbon Tetra Chloride Solution) and flushing out 3-4 times. Recirculating fresh water inside the pipes and flushing out five to six times so that descaling liquid is completely cleaned out along with Scales from the pipe line complete all as specified and as directed by Engineer-in-charge of the following capacity of AC plant are as under:- Note:- Each condenser unit will be measured and paid separately.
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Condensor unit of AC plant capacity 70 TR.
4
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Condensor unit of AC plant capacity 50TR.
3
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Condensor unit of AC plant capacity 11TR.
12
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M&L for Servicing of Air Handling Units (AHU) by removing the filter, vacuumising the filter, washing the filter and reinstalling the cleaned filter, brush the cooling coil and spray the foam coil cleaner including rinsing of coil, alignment of shaft & Motor, servicing of chilled water line strainer for the AHUs, tightening of terminals of motor, replacement of V belts, replacement of bearings complete all as specified and as directed by Engineer-in-charge of the following capacity of AC plant are as under:- Note: The unit rate quoted shall deemed to be include the cost of blowing out the dust, chemical cleaning by spraying the organic based scale removing agent (Vaniklin) at the appropriate ratio till removal of complete dust & scale deposits in the fin area of evaporator coil, flushing through for proper air flow across the coil, cleaning of expansion valve; greasing of blower motor, checking of electrical connection, cleaning of air filters,greasing of blower motor,replacement of unserviceable bearings, V belts, water drain lines, renewal of rusted sheet metal screws, applying synthetic enamel paint over a coat of primer on the rusted portion and testing & commissioning the unit all as specified and as directed by Engineer-in-Charge.
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Air Handling Units (AHU) of capacity 5800 CFM
14
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Air Handling Units (AHU) of capacity 15600 CFM.
2
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Air Handling Units (AHU) of capacity 7500 CFM
8
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Material and labour for carrying out servicing/overhauling , repairs and maintenance of Cooling tower of 100 TR water cooled chiller type central AC plant by dismanlting /taking down the CT fan motor of flange mounted extended type shaft upto 5 HP, 3 phase, 415 volts, 50 Hz, along with fan assembly, and including cleaning & removeal of scales, inspection, cleaning and replacement of PVC fills, PVC eliminator, FRP louvers, motor cover, splash cups etc complete including renewal of all corroded bolts & nuts, terminal block, and re-assembling, fixing in position, fixing of fan blade, and alignment of the fan blade for the suitable air throw of the cooling tower,painting with two coats of synthetic enamel paint over a coat of anticorrosive paint after preparation of surfaces, testing & commissioning the cooling tower motor all as specified and as directed by the Engineer-in-Charge.
Note:- (a) Spares such as PVC fills, Fan assembly, CT fan motor, elimintaor, louvers, motor cover, branch pipe, splash cups etc will be measured and paid separately under relevant items. (b) The unit rate quoted shall deemed to include the cost for all T&P, chemicals required for cleaning, FRP compound, nut bolts etc complete for keeping the Cooling tower in operational condition.
1
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Supply only spares for carrying Cooling tower of 100 TR water cooled chiller type central AC plant under relevant items:-
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PVC Fills for 600x300x150mm
200
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CT Fan Assly of cast aluminium alloy of size 1500mm.
1
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CT Fan electric motor of capacity 7.5 HP/ 5 kW, minimum insulation class F with IP55 rating.
Make : Oswal/Kirloskar/CG/ABB
1
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Aluminium sprinkler of size 5" (125mm).
1
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FRP motor cover.
1
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PVC Branch pipes 63mm dia and 30 inches long.
1
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M&L for leak testing of Air-conditioning Plant unit of comprising of condenser units and chiller units with pressure testing the complete plant by dry nitrogen gas by separating high side and low side, brazing and low side, rectifying the leakage by gas welding, brazing, pressure testing, vaccumising gas, gas charging the system with existing Refrigerant gas, testing and commissioning complete all as specified and as directed by Engineer-in-charge of the following capacity of AC plant are as under:- Note :- (a) Each chiller unit, refrigerant gas will be paid and measured separately.
(b)The cost for the nitrogen gas shall be deemed to be included in the quoted rate.
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Air-conditioning Plant unit of capacity 70 TR.
2
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Air-conditioning Plant unit of capacity 50 TR.
2
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Air-conditioning Plant unit of capacity 11 TR.
6
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Dismantling the pump of following capacity, isolating suction / delivery line connections, checking the worn out parts like impeller, shaft, stuffing box, shaft sleeve using Micrometer and transporting to workshop for repairs, check for condition of bearings, removing scales from impeller and pump housing, building the worn out metal of transmission shaft to required level, machining to the required size on lathe machine, grinding and finishing to match the sleeve, and fixing into the housing, re-assembling, transport back to the installation, installing in position, check for alignment with dial gauge, inserting shims where necessary, refixing with coupling, tightening with torque wrench to required level, re-connecting the flanged pipe connections of suction/ delivery, greasing for bearings including replacement of rubber insertion etc complete all as specified and directed by the Engineer-in-Charge.
Note :- Spares will be measured and paid separately under relevant schedule.
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Pump of capacity 10 to 20 HP.
1
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Pump of capacity 3 to 7.5 HP.
2
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Supply only for carrying out repairs under item No. 7.01 above with the following items for incorporating of pumpset repair work for the of capacity 10 to 20 HP :-
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Shaft bushes with check nuts (stainless steel)
1
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Ball bearing.
Make :- NBC/SKF
1
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Metal coupling for pumpset.
1
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Gland packing end cover (Stainless steel of suitable grade) as per exisiting size.
1
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Supply only for carrying out repairs under item No. 7.02 above with the following items for incorporating of pumpset repair work for the of capacity 3 to 7.5HP :-
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Shaft bushes with check nuts (stainless steel).
1
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Ball bearing of suitable size.
Make :- NBC/SKF
1
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Metal coupling for pumpset.
1
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Gand packing end cover (Stainless steel of suitable grade) as per exisiting size.
1
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M & L for dismantling the defective induction motor of following capacity/make/class of insulation from foundation bed, disconnecting all electric supply connections, duly coupled with pump/compressor, transporting to workshop removing burnt out winding from stator/rotor, rewinding with suitable gauge of super enamelled copper wire of approved make and replacing DE /NDE bearings, insulation materials, varnishing , heating, greasing of bearings etc complete, re-assembling, testing and commissioning of following capacity motors all as directed. Note : Terminal block, Bearings of motor if required will be measured & paid separately under relevant schedule items.
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Induction motor of capacity 10 to 20 HP
30
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Iinduction motor of capacity 3 to 7.5 HP.
15
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Dismantling of motor of following capacity pumpset from installed position after disconnecting the coupling and electric connections and transporting the motor to the work shop, strip opening of the motor complete incl Dismanlting stator, rotor assembly and cleaning the complete assemblies by taking out perished glass sleeve of connecting leads from common termination to terminal block,and washing with carbon tetra chloride, decarbonising and cleaning the rotor with CTC solution.Replacing the glass sleeve of connecting leads from common termination to terminal block, binding the loose coils with binding cloth, varnishing the coils complete and applying bectol on the excitor coils, stator coils and heating complete, reassembling the unit and testing with megger for insualtion value and re-assembling, aligning with pump, re-inserting shims where necessary, refixing with coupling, tightening with torque wrench to required level, re-connecting the electric cable etc and check for drawing current testing, commissioning etc all as directed by Engineer-in-Charge.
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Motor of capacity 20 HP pumpset.
2
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Motor of capacity 10 HP pumpset.
1
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Motor of capacity 7.5 HP pumpset.
3
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Motor of capacity 5 HP pumpset.
2
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Motor of capacity 3 HP pumpset.
4
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M&L for replacement of rubber bush coupling for following capacities of pumpsets complete all as directed.
-
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Pumpsets of capacity 10 to 20HP.
1
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Pumpsets of capacity 3 to 7.5HP.
1
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Supply only following bearings required during winding of motors all as directed
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DE/NDE bearings suitable for motor of capacity 10 to 20HP.
1
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DE/NDE bearings suitable for motor of capacity 3 to 7.5 HP\.
1
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Supply only terminal block complete with hardware of following capacity motors complete all as specified and directed.
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Motor of capacity 10 to 20HP.
1
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Motor of capacity 3 to 7.5 HP.
1
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Servicing/cleaning the motor starter panel of size, control wiring of starter, replacing defective CTs/meters/glands/indicator lamps, replacement of rusted doors with hinges/locking arrangements, tightening the cable end terminals with bus bar/ connector links/MCCB/MCB/Contactor/Relay/Single phase preventor and timer end terminals with proper torque for avoiding loose connections, applying a coat of red oxide primer after preparation of rusted surfaces only and applying two coats of enamel paint of approved colour by Engineer-in-charge for the following capacity of pumps:-
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Motor of capacity 20HP.
1
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Motor of capacity 10HP.
1
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Motor of capacity 7.5HP.
1
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Motor of capacity 5 HP.
4
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Motor of capacity 3 HP.
10
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M&L for preparation of old painted steel surfaces of located at various places of air conditioning plant and connected structure by means of scrapping and filling cavities, etc., and applying two coats of synthetic enamelled paint by means of spray painting and writing SM/MES number complete all as specified and as directed.
Note:- Each chiller unit will be measured and paid separately.
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AC Plant chiller unit of capacity 70 TR.
4
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AC Plant chiller unit of capacity 50 TR.
3
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AC Plant condenser unit of capacity 11 TR.
12
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S&F in repair butterfly valves of following sizes as per IS 13095 , PN 1.6 rated including connected accessories such as rubber gasket, nut bolts etc complete all as directed. Make: Castle/ Zoloto/L&T/Leader
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100mm bore.
1
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80mm bore.
1
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65mm bore.
1
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50mm bore.
1
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S&F in repair NRV butterfly valves of following sizes as per IS 13095 , PN 1.6 rated including connected accessories such as rubber gasket, nut bolts etc complete all as directed. Make: Castle/ Zoloto/L&T/Leader
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100mm bore.
1
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80mm bore.
1
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65mm bore.
1
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50mm bore.
1
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S&F in repairs MCCBs in existing FP/panel, connecting to bus-bar with all connecting accessories and modification in busbar (if Necessary), connection complete and testing after completion, all as specified and directed, of following capacities :- Make:- ABB/Legrand/Siemens/L&T/Schenider.
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MCCB 400 Amps, 4 pole,36 kA,50Hz,Thermal magnetic release,lcs=100% lcu.
1
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MCCB 160 Amps, 4 pole,25 kA,50Hz,Thermal magnetic release,lcs=100% lcu.
1
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MCCB 125 Amps, 4 pole,25 kA,50Hz,Thermal magnetic release,lcs=100% lcu.
1
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MCCB 100 Amps, 4 pole,16 KA,50Hz,Thermal magnetic release,lcs=100% lcu.
1
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MCCB 63 Amps, 4 pole,16 KA,50Hz,Thermal magnetic release,lcs=100% lcu.
2
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S&F in repairs MCBs in existing FP/panel with all connecting accessories and modification in wirings (if Necessary), connection complete and testing after completion, all as specified and directed, of following capacities :-
-
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MCB TP 20 to 80A.
12
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MCB SP 6-25A.
10
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S&F in repair 3-pole power Contactors in existing control panel of AC Plant, connecting to bus-bar with all connecting accessories and modification in busbar (if Necessary), connection complete and testing after completion, all as specified and directed, of following capacities :-
-
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Contactor AC-3, 65A.
2
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Contactor AC-3, 12A.
1
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Contactor AC-3, 25A.
2
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Contactor AC-3, 32A .
2
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Contactor AC-3, 18A.
3
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Contactor AC-3, 9A.
3
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S&F in repair, thermal over load relays in existing motor control starter panel of AC Plant, connecting to contactor with all connecting accessories and connection complete and testing after completion, all as specified and directed, of following capacities :-
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Thermal Over load relay range 14 Amps to 23 Amps of 63A(max).
2
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Thermal Over load relay range 9 Amps to 15 Amps of 50A(max).
3
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Thermal Over load relay range 6 Amps to 10 Amps of 32A(max).
4
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Thermal Over load relay range 4.5 Amps to 7.5 Amps of 25A(max).
3
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Thermal Over load relay range 3 Amps to 5 Amps of 16A(max).
5
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S&F as in repair, Fully Automatic Star-Delta (FASD) starter for motor rating AC-3 duty, 415 volt, 50 Hz, three phase supply consisting of contactor, single phase preventor, timer, relay and connected control wire suitable for motor pump of any capacity including taking out old unserviceable starter all as specified and as directed by Engineer-in-charge of the following capacity as under:-
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Motor starter panel of capacity 20 HP.
1
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Motor starter panel of capacity 10 HP.
1
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All as per item No- 23.00 above but of Direct online starter (DOL) of following size of motor:-
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Motor starter panel of capacity 7.5 HP.
1
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Motor starter panel of capacity 5 HP.
1
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Motor starter panel of capacity 3 HP.
1
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S&F as in repairs PCB (Printed Circuit Board) controller kit (micro processor based control panel) as per existing make and model suitable for air conditioning plant chiller unit of capacity including taking out old unserviceable complete all as specified and as directed by engineer in charge of the following as under:-
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Chiller unit of capacity 70 TR.
2
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Chiller unit of capacity 50 TR.
2
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Chiller unit of capacity 11 TR.
4
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S&F as in replacement V-belt of any size including taking down unserviceable belt complete all as specified and as directe of the following as under:-
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V-belt of size B-73.
2
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V-belt of size B-100.
2
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V-belt of size C-112.
2
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V-belt of size A-54 .
4
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S&F as in replace fan pulley of AHU fan blower any size including taking down unserviceable complete all as specified and as directed of the following as under:-
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Fan pulley dia of size 200mmx2A.
5
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Fan pulley dia of size 400mmx2SPB.
1
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Fan pulley dia of size 260mmx2A.
2
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S&F as in replace motor pulley of AHU motor any size including taking down unserviceable complete all as specified and as directed of the following as under:-
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Motor pulley of size 100mm x 2A.
5
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Motor pulley of size 140mm x 2SPB.
1
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Motor pulley of size 140mm x 2A.
2
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S&F as in repairs pre filter of AHU having 90% down to 10 micron as per existing any size including taking down uniserviceable complete all as specified and as directed suitable for the following AHUs as under:-
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AHU having capacity 15600 CFM.
10
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AHU having capacity 5800 CFM.
20
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AHU having capacity 7500 CFM.
10
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Supply and charging refrigerant gas R134/R407C/R404A or equivalent existing gas as per OEM for gas charging for ACs/ water coolers/ refrigerators complete one time for topping up or making full qty as per the pressure requirement of plant and /testing for any leakage and rectifying the same as directed by Engineer in Charge and testing on full load condition for 8 Hrs period. Make: Mafron/ Freon/ Floron.
(i) Empty cylinder shall be returned to contractor.
(ii) Payment shall be made for net weight of gas and necessary receipt voucher shall be submitted on this effect.
190
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M&L for dismantling old unserviceable compressor & supply, installation, testing & commissioning of new compressor as per existing make and type 3 ph 415 V 50 Hz of below capacity & connecting suction, discharge line by jointing with copper rod & oxygen flame and making electric connections & wiring with microprocessor control panel & sensor complete all as specified and directed for the following as under:-
Note: (i) The cost of any other sensing/protective device Eqpt required to make the plant functional related to compressor shall be included in quoted rates.
(ii) The cost of hiring of technician from the OEM of compressor for installation & commissioning shall be included in quoted rate.
-
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Model No- SY300A4PBE of hermitically sealed scroll compressor approx capacity 17.5/20 TR of AC Plant.
1
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Model No- SZ185S4RC of hermitically sealed unit compressor approx capacity 12.5 TR of AC Plant.
1
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Model No- SH140A4ALC of hermitically sealed unit compressor approx capacity 11 TR of AC Plant.
3
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S&F as in repairs/replacement of the following spares suitable for AC Plants of capacity 70/50/11 TR AC plant of Make: Carrier/Bluestar/Voltas complete all as specified and as directed :-
-
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Voltas chiller unit Electronic protection module mounted in terminal box of current range 4 to 61 Amp with Aux supply 0 to 11VAC, 0 to 13 VAC, 5 Sec time of Model SCR 44TR (MPD)(V4).
4
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Motor Protection Unit 1A - 10A, Model M2PD-WOD.
3
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Motor Protection Unit 4A-61A, Model SCR 44TR.
4
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Auxilary supply unit of Model No SPP-PHR.
4
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Water flow controller switch.
4
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Stem type thermostat of 6" length.
3
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Auto thermostat having range (-)300°C to (+)150°C, model KP61.
3
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Temperature gauge having range (-) 100°C to (+) 500°C.
3
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Timer 800 SD.
4
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Single phase preventor.
4
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Water pressure cut out having IP70 rating.
4
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Oil pressure cut off switch, MP - 55.
2
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Valve cum actuator of model VXF47.80.
1
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Display unit suitable for VXF47.80 auto 3 way valve controller.
1
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Fuse size A4, 125 A, 80 KA.
12
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Pressure gauge Dial type 0 to 100 Kg/cm2.
15
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Liquid line filter drier with 1/4 inch flare.
16
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Thermostatic Expansion valve.
10
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Solenoid pilot control valve with coil assembly.
15
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HP/LP cut off switch with flare nut.
10
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Strip heater 3KW.
30
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Safety valve of sizes 7/8" to 1-1/8" .
5
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-
Dismantling old U/s duct and Supply , assembly and erection of GI sheet with TDF flange rectangular/square duct made out of 'L' shaped hollow profile, duly factory boxed, incl all accessories such as Corner, Cleat, Carriage bolt, Gasket and appropriate sealant on longitudinal joints etc complete of size as following as under:-
-
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GI sheet with TDF flange of size 22 guage.
2
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GI sheet with TDF flange of size 24 guage.
5
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Dismantling old U/s duct and M&L for duct insulation 40mm thickness with resin bonded fibre glass wool roll of density 24 kg/Cum, with factory laminated aluminium vapour barrier, thickness of insulation as specified and including the following:- (a) M&L for cleaning the duct surface (to be insulated) by scrapping carefully with wire brush etc. to make the surface completely free of millscale, dirt, dust, grease and other foreign materials, taking special care so that all duct joints are sealed against any leakage.
(b) M&L for applying rubber based adhesive CPRX compound.
(c) M&L for sealing of all longitudinal joints and circular overlaps with and including Aluminium foil tape 50 mm wide, to make the insulation leakproof.
(d) M & L for securing the insulation with and including mechanically fastened nylon/steel straps of size 12 mm/50 mm at maximum intervals of 1.2 mtr.
10
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Supply and lay MS Pipes heavy grade of size 100mm bore with all fittings laid in floors or fixed to walls and ceilings etc of sizes as shown including dismantling old unserviceable pipes complete all as specified and as directed.
12
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Supply and lay MS Pipes heavy grade of size 80mm bore with all fittings laid in floors or fixed to walls and ceilings etc of sizes as shown including dismantling old unserviceable pipes complete all as specified and as directed.
12
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Supply and lay MS Pipes heavy grade of size 65mm bore with all fittings laid in floors or fixed to walls and ceilings etc of sizes as shown including dismantling old unserviceable pipes complete all as specified and as directed.
12
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M&L for Insulation of MS Pipe of size 100mm bore of insulation 40mm thick with nitrite insulation of the following size of thick final finished with 26 G aluminium cladding complete including dismanlting old worn out cladding.
12
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M&L for Insulation of MS Pipe of size 80mm bore of insulation 40mm thick with nitrite insulation of the following size of thick final finished with 26 G aluminium cladding complete including dismanlting old worn out cladding.
12
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M&L for Insulation of MS Pipe of size 65mm bore of insulation 30mm thick with nitrite insulation of the following size of thick final finished with 26 G aluminium cladding complete including dismanlting old worn out cladding.
12
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Note for Item No 1 to 40: The MCCBs shall be thermal adjustable type with ICs=100%ICu and all the spares of AC plant considered shall be as per OEM approved suitable all as per existing. It is responsibility of contractor to engage required manpower as per requirement and take necessary measures to run the plant in event of breakdown to the satisfaction of user and as directed by Eng- in-charge .Considering the sensitive nature of installation the contractor shall always be in a position to make alternate standby arrangement in case of break down. Contractor shall keep his spares ready in advance for carrying out repairs without any delay. Any breakdown/complaint shall be attended within 2 Hrs and defects shall be rectified within 24 Hrs of time otherwise a recovery of Rs 5000/Hr due to non-functional of AC plant shall be attributed to Contractor without any further claim. The cost for same is deemed to be included in scope of item. The repairs to be carried out by experienced/authorized service engineer/mechanic and the credentials for the same to be submitted for approval of GE before commencement of work.
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