Mahanagar Telephone Nigam Limited Tender

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Mahanagar Telephone Nigam Limited - MTNL Tender

Services
Electrical and Electronics
Electrical Works
Eprocure
Opening Date30 Dec 2024
Closing Soon8 Jan 2025
Tender Amount₹ 36,29,345 
Notes
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Costs

Description

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BOQ Items

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Replacement of faulty compressor with the factory repaired compressor i/c dismantling of the faulty one from site and re-fixing the new one etc as reqd, (Make : Kirloskar/ Copeland) a) 2.5 TR

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b) 5 TR/ 5.5 TR

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Replacement/ Providing & making drain arrangement for AC units with following pipe i/c Tee, Union, Socket & Elbow etc as required. a) 40 mm dia medium class PVC pipe.

15

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b) 25 mm dia medium class PVC pipe.

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Replacement/ P & F Kini foam insulation / 9 mm thick FR XPE pipe section insulation for refrigerant piping in order to protect it from air borne impurities complete as reqd. as per site location

45

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Replacement/ Pdg. & installing following size copper pipe including cutting bending, jointing, brazing etc as reqd. for hot suction and liquid refrigerant line complete as reqd. a) 11/8"

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b) 7/8"

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c) 5/8"

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d) 1/2"

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e) 3/8"

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Pressure testing with nitrogen, pressure standing for at least 8 hr., vaccumzing and commissioning with appropriate refrigerant for following A C units complete as reqd. a) 11.0 TR / 12 TR (nominal capacity) AC unit.

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b) 8.5TR / 8.75 TR /9TR(nominal capacity) AC unit.

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c) 7.0 TR / 7.5 TR (nominal capacity AC unit.

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d) 4.0 TR / 5.0TR/ 5.5 TR (nominal capacity)AC unit

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Providing and charging of R-22 gas for top up refrigerant in the AC units complete as required.

50

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Replacement/ P&F following type of filter having 85% efficiency down to 20 microns suitable to fit in the ductable unit / package unit/duct/plenum at the supply air/return air path complete as reqd. a) Return air filter for A.C. units

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Replacement/ Supplying, laying, fixing, testing and commissioning of following sizes PVC sheathed copper conductor cable on the existing surface as reqd. (Make: Havells/ KEI/ Polycab/ Finolex) a) 4x 10 Sq. mm copper armoured cable.

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b) 4 x 1.5 Sq, mm copper armoured cable.

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c) 17 core unarmoured cable

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d) 4x4 Sq. mm copper unarmoured cable.

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e) 3x2.5 sq.mm copper conductor flexible cable

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Replacement/ Supplying and installing of following size M.S cable tray made out with following M.S. Slotted angle & squire pipe or slotted sheet material suspended from the ceiling with M.S. suspenders including screws, bolts & nuts, painting etc as required. a) Width size not exceeding 150mm.

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b) Width size above 150mm not exceeding 250 mm.

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Replacement/ P&F 8 SWG dia Gl wire on surface or in recess for loop earthing along with existing surface/ recessed conduit/ submain wiring/ power cable as required.

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Replacement/ P&F nitrile 9 mm thick or fibre glass duly wrapped in tissue paper for thermal insulation/ sound proofing along with hardware and application of adhesive for curtail the condensation etc. as required.

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M.S. Structure work for i/c designing, fabricating at site as per site requirements i/c cutting, welding, fixing, painting with one coat of red oxide primer and two coats of enamel paint in approved shade etc as reqd. a) 40mm M.S. Angle iron/ MS Strip/ MS Channel/ MS angle of any

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b) 9mm M S rod

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c) M.S. suspenders for indoor units of 5.0TR to 11TR ductable/package a.c units complete as reqd.

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Dismantaling of drain pipes, copper piping, cabling, cable tray and shifting to desired location as given by the Engineer-in-charge

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Dismantalling of old package/ductable indoor and outdoor AC unit including its electrical /mechanical connection, old Gl duct/insulation complete as reqd and shifting it to the desired location as given by Engineer-ln-Charge.

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Shifting of dismantelled AC unit along with all accessories to another site under jurisdiction of EE(E)LR with the help of heavy labour and chainpully, transportation etc. as reqd.

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Installation of AC package/ductable units in switch room/AC plant room on existing foundation or on MS Stand etc as required

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Minor civil work such as cutting, widening and opening the floor/wall and other civil work for installing refrigerant piping/drain piping/ ducting/electrical cabling for each cut out including finishing the same complete as reqd.

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Replacement/ Pdg. & fixing of electrical/switchgears used for AC plant/centrifugal fan/air washer & other works complete as reqd. a) 63 Ampere rating TPN SFU along with fuse/ FPMCB. (Make: L&T/ GE/ Legrand/ C&S/ ABB/ Havells)

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b) 100 Amp TPMCCB of 25KA Breaking capacity (Make: L&T/GE/Legrand/C&S/ABB)

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b) 200 Amp TPMCCB (Make: L&T/GE/Legrand/C&S/ABB).

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Replacement/ Pdg. & F PVC flooring i/c cleaning of floor spreading the adhesive, pasting the PVC sheet rolling with weight on the pasted sheet for proper fixing complete as reqd.

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AC Guard CP-Corrison prevention coating for brazing joints, U band, interconnecting copper piping of indoor and outdoor a.c. units. (Note: Per Job Per Unit)

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Replacement of AC Mechanical item of package/ductable AC unit & other works complete as reqd. a) Angel valve/pin valve for ref. circuit.

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b) Drier for AC unit

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c) Expansion valve for AC units

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Supplying and fixing new evaporator coils for following AC unit including dismantling the existing condenser coil and making proper size copper pipe connection, brazing at joints etc as reqd. a) Evaporator coil for 4 TR /5TR /5.5 TR (nominal capacity) AC unit.

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b) Evaporator coil for 7.0 TR / 7.5 TR (nominal capacity) AC unit.

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c) Evaporator coil for 8.75 TR/ 11.0 TR (nominal capacity)AC unit.

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Replacement/ S and F following new condenser coils including dismantling the existing condensor coil and making proper size copper pipe connection, brazing at joints etc as reqd. a) Condenser coil for 4 TR / 5 TR / 5.5 TR (nominal capacity) AC unit.

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b) Condenser coil for 7.0 TR / 7.5 TR (nominal capacity) AC unit.

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c) Condenser coil for 8.5 TR / 8.75 TR/9TR (nominal capacity) AC unit.

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Replacement/ P&F outdoor unit consisting of aircooled condensor with integral connections fabricated out of copper tubes, aluminium fins, bends enclosed in GSS box with outlet Copper connections 1.5 TR

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Providing and fixing indoor units fabricated out of copper tubes, aluminium fins as per requisite sizes as per site requirement 1.5 TR

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Replacement of faulty control wires remote indication suitable for Blue Star make.

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Rewinding of old defective blower motor of 7.5TR/9 TR/11 TR AC unit.

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Rewinding of old defective Heat Exchanger fan motor of 5.5 TR or equivalent capacity.

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Replacement/ SITC of faulty Heat Exchanger fan for Blue Star make 5/ 5.5 TR unit.

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Replacement/ SITC of faulty blower fan of Blue Star make 5.0TR unit.

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Replacement/ SITC of faulty out door of 5.0/ 5.5 TR ductable AC units for Blue Star or any other make constructed out CRC/MS Powder Coated cabinet housed within with condensing coil, fan, motor etc.

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Replacement/ SITC of faulty Indoor of 5.5TR ductable AC units for Blue Star make or any other make suitable for ref. 22 comprising of Evaporator coil, blower, motor, etc

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Replacement/SITC of remote control or indication of on/off position of AC unit etc. complete as reqd.

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Replacement/ P&F thermal insulation nitrile on pipes of different sizes of pipes etc, as required.

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Replacement of controller of AC units to control for ON and OFF position with temperature controller etc. as required.

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