REPAIRS/MAINTENANCE TO VARIOUS CAPACITY CENTRAL TYPE AC PLANTS AND CONNECTED MOTORS, PUMPS AND MISC WORKS AT INS KALINGA AND NAD BHEEMUNIPATNAM UNDER GE (P) NAVY KALINGA

Amount

M&L for disconnecting electrical/ mechanical connections and de-coupling Motor from pump/compressor, taking down the defective Induction Motor of any make / model shifted to work shop for dismantling motor , remove burnt out winding from stator and rewinding the stator with same gauge super enamelled copper conductor with necessary insulation materials , varnishing backing re-assembling motor including replacement of both end bearings complete. Note:- After completion of the job motor shifted to site and reinstalled at its original position including alignment with pump/compressor with electrical connections and testing for best performance complete all as directed of the following capacities :-

Motor up to 5 HP

Motor upto 10 HP

Motor upto 15 HP

Motor upto 20 HP

Motor upto 30 HP

Motor upto 50 HP

M&L Repair reconditioning of monoblock pump/centrifugal pump connection will be disconnected and pump will be degutted from foundation and transported to the civil shop. Pump will be dismantled completely and inspection will be carried out. After complete inspection of the pump any machining jobs will be carried out. Mechanical seals, gland packing, O-rings and other consumables will be renewed major over hauling of the pump will be carried out and boxed back test bed trails will be carried out at workshop at 1.5 times the working pressure, pumps will be transported back to INS Kalinga and regutting be done pump shifted to site and reinstalled at its original position including alignment with pump/motor with electrical connections and testing for best performance complete all as directed of the following capacities :-

Pump up to 5 HP

Pump upto 10 HP

Pump upto 15 HP

Pump upto 20 HP

Taking down unserviceable coupling Condenser /chiller motor to be boxed back and supply and fixing new coupling and alignment, any machining jobs will be carried out all as specified and as directed.

Taking down unserviceable tyre coupling Condenser /chiller motor to be boxed back and supply and fixing new tyre coupling and alignment, any machining jobs will be carried out all as specified and as directed.

Taking down unserviceable single phase preventer and S&F new single phase preventer, 6 wires, 230 V complete all as directed.

Material and Labour for taking down the chocked liquid line drier core by pump down the gas to the condenser, isolation of valves taking out the defective 2 Nos core assembly complete cleaning the core shell with CTC, flushing with Nitrogen and renewal the 2 Nos activated Alumina core with necessary gasket fixing the cover , leak testing and commissioning complete all as directed.

M&L for vacummising the complete system of various capacity of central type AC plants with vacuum pump as per the standard practice and charging refrigerant R-22 gas including checking of leaks and testing & commissioning of the system complete all as directed. Make :- Mafron/ Freon

M&L for vacummising the complete system of various capacity of central type AC plants with vacuum pump as per the standard practice and charging refrigerant HFC 134a gas including checking of leaks and testing & commissioning of the system complete all as directed. Make :- Mafron/ Freon

M&L for vacummising the complete system of various capacity of central type AC plants with vacuum pump as per the standard practice and charging refrigerant HFC R-407a gas including checking of leaks and testing & commissioning of the system complete all as directed. Make :- Mafron/Freon

Supply and filling compressor oil complete all as directed by Eng-in-charge. Make: Capila-D/ Sheetal-80

Material & Labour for taking down the defective unserviceable solenoid valve coil and supply & fixing of new coil suitable to work in single phase, AC 220 V,50 Hz complete all as directed. Make :- Sporlaon / Sanlon

Material & Labour for taking down the defective/ unserviceable High Pressure & Low Pressure combination cut out switch and supply & fixing HP & LP combined switch including connecting the circuit wiring, pressure line connections and setting of the cut in & cut out pressure limits and testing complete all as directed. Make : Indfoss / Dunfoss

Material & Labour for taking down the defective/ unserviceable Low Pressure cut-out switch and supply & fixing of new Low pressure cut-out switch including connecting up the Electrical & pressure line connections and setting the cut-in & Cut-out pressure limits and testing the cutout switch for AC plant compressor complete all as directed. Make : Indfoss / Dunfoss

Material & Labour for taking down the defective unserviceable oil Pressure cutout switch and supply & fixing of new oil pressure cut out switch including connecting up the Electrical & Pressure line connection and setting the cut-in & cut-out pressure limits and testing the cutout switch for AC plant Compressor complete all as directed. Make : Indfoss / Dunfoss

Material & Labour for taking down the defective unserviceable timer and S&F of new on delay timer HSDT2 CON-230, 0 to 30 Sec connecting the wiring & testing complete all as directed.

Material & Labour for taking down the defective shaft seal assembly by disconnecting the drive set of direct / belt driven type, isolation & pumping down the gas to the condenser, opening the shaft seal, cleaning the shaft seal port, with CTC, and S&F new shaft seal and checking the leaks fixing the drive set, and testing the compressor of 05040 / 05046 Voltas 30TR all as directed by Engr-in-charge. Make :- Voltas

Material & Labour for taking down the defective unserviceable power contactor of 3TF46 & burned out copper wire, lugs, and S&F of new power contactor 3 pole, 220-240 coil volt, including the copper wire & copper lugs and testing complete all as directed.

S&F MPD Power supplier of capacity 5-30 Amps auxiliary supply,15 V, AC 230V, 50Hz, AC supply as fixed in repairs complete all as directed. Make :- Soft hard/ L&T

S&F Digital Ammeter,3 phase,5 Amps, class 1,AC supply as fixed in repairs complete all as directed.

S&F Digital Voltmeter,3 phase,5 Amps, class 1,AC supply as fixed in repairs complete all as directed.

M&L for complete rectification testing overhauling and modification of electrical starter panel will be opened cleaned and checked for loose connection and will be tightened accordingly, all the relays ,fuse, connectors, other related equipment in the system will be checked and damaged equipment will be replaced with new spares, wiring of the panel carried out, all other protection will be checked and will make them in operation, includes replacement of burnt out lugs, busbar unserviceable contactors, cleaning of panel, checking of serviceable and operational condition, ensure of panel door closing, including same colour existing painting complete all as manufacturers instruction all as specified and directed by Engineer- in - charge. Note : i) The rate quoted shall be deemed to included for lugs ,busbar modification, T&P,MS nuts,bolts,pannel painting , ii) supply only spare parts shall be measured and paid separately against respective item and the unit rate quoted shall deemed to included the cost of labour for fixing the spares .

Supply only MCCB 350 amp TP , 50 KA

Supply only MCCB 250 amp TP , 36 KA

Supply only contactor 3 pole MNX 32

supply only power contactor 3 pole MNX 18

supply only auxiliary contactor MNX-A1

supply only auxiliary contactor MNX-A2

supply only contactor TC1 3 pole capacity of 25 amps

supply only ammeter, 3 phase

supply only Voltmeter 3 phase .

supply only MCB 63 amps 3 pole

Material & Labour for carrying out the complete leak rectification of the direct expansion system of following capacity central AC plants consisting of compressors, condensers, liquid & suction and discharge lines, and evaporator coil/ chiller and pressure control valves & lines and gauge board with Nitrogen gas, locating the leaks and rectifying the leaks and flushing the complete system and pressure testing & holding the pressure for 24 Hours complete all as directed by Eng-in-charge.

30 TR capacity Chiller system

50 TR capacity Chiller system

M&L for taking down the defective Induction Motor bearing of any make / model shifted to work shop for dismantling motor , replacing bearing with new ball bearing of the following sizes complete all as directed.

Ball bearing 6204

Ball bearing 6205

Ball bearing 6206

Ball bearing 6207

Ball bearing 6208

Ball bearing 6209

Ball bearing 6210

Ball bearing 6211

Ball bearing 6312

Ball bearing 6313

M&L for removing pillow block bearing at site and replacing the pillow ball bearing with new pillow bearing size upto shaft dia 63.5mm including any machining ,alignment of shaft, impeller jobs will be carried out complete all as directed.

Taking down old unserviceable 80 mm dia CI butterfly valve and S&F 80 mm dia CI butterfly valve, PN 1.0, pneumatic double acting actuator with both sides flanges and gaskets complete all as specified and directed.

Taking down old unserviceable 100 mm dia CI butterfly valve and S&F 100 mm dia CI butterfly valve, PN 1.0, pneumatic double acting actuator with both sides flanges and gaskets complete all as specified and directed.

Removing unserviceable, corroded MS ERW pipe of 150 mm dia and S&F upto 150 mm dia MS Pipe (heavy grade) with necessary fittings like Elbow, flanges, bolts, nut and valve strainers, including supports complete as in water pipe lines including testing and commissioning complete all as directed.

M&L for complete rectification testing overhauling of Hot water generator Make: Rapid cool damaged spare parts to running condition replacement unserviceable parts digital step controller display , relay , heater assembly , contactors, checking of serviceable and operational condition of hot water generator , complete all as manufacturers instruction all as specified and directed by Engineer- in - charge. Note : i) The rate quoted shall be deemed to included for labour, T&P,MS nuts,bolts, painting , ii) supply only spare parts shall be measured and paid separately against respective item and the unit rate quoted shall deemed to included the cost of labour for fixing the spares .

Supply only Digital step controller display complete set for hot water generator 80 KW (Model: RC-80, Make: Rapid cool) complete all as specified and directed.

Supply only Control Module card with relay complete set for hot water generator 30 KW (Model: RC-30, Make: Rapid cool) complete all as specified and directed.

Supply only immersion type water heater assembly of capacity 25 KW suitable for Emerald make hot water generator complete all as per existing model and make complete all as specified and directed.

Supply only immersion type water heater assembly of capacity 15KW suitable for Emerald make hot water generator complete all as per existing model and make complete all as specified and directed.

Supply only Thermostat (30 to 110) ANCO DX-110 suitable for Rapid cool Make hot water generator complete all as per existing model and make complete all as specified and directed.

Supply only Limit Switch suitable for Rapid cool Make hot water generator complete all as per existing model and make complete all as specified and directed.

Supply only Water Thermostat suitable for Rapid cool Make hot water generator complete all as per existing model and make complete all as specified and directed.

Supply only Air Release Valve suitable for Rapid cool Make hot water generator complete all as per existing model and make complete all as specified and directed.

Supply only Rubber Gasket suitable for Rapid cool Make hot water generator complete all as per existing model and make complete all as specified and directed.

Supply only MCCB 100 Amps FP 30 KA 415 Volt existing model and make complete all as specified and directed.

Supply only MCCB 63 Amps FP 30 KA 415 Volt existing model and make complete all as specified and directed.

Supply only MCB 6 Amps 30 KA 415 Volt existing model and make complete all as specified and directed.

Supply only contactor MNX 25 ,3 phase 415 Volt existing model and make complete all as specified and directed.

Supply only contactor MNX 18 ,3 phase 415 Volt with coil voltage 220 volt existing model and make complete all as specified and directed.

Taking down old unserviceable AHU filter S&F new filter Design, Supply , Installation , Testing & Commissioning (DSITC) of MERV-4 filters of different sizes after proper fabrication of the filters identical with the currently installed sizes (i) Construction- Pleated (ii) MOC for frame- Aluminium (iii) Media- MERV 13 Synthetic with thermal bonded support layer (iv) Washable media (v) Bonding with Epoxy Adhesive Washable Media (vi) I.P.D- 4 mm of WC (vii) F.P.D- 12 mm of WC (viii) Filtration Efficiency: 3 – 10 Micron: More than 90%

M&L taking down the existing corroded unserviceable ladders S&F Framed work such as grills, gratings etc., with ends of bars shouldered and/or riveted, or forged into spikes; framed guard bars; barred iron doors; ladders; framed balusters; walk ways; railings; framework of make up water tanks conforming to Fe 410-0 or Fe 310-0 of MS flat angle iron supports fabrication, erection including applying 2 coat of enamel paint over 1 coat of anticorrosive primer , the work includes the necessary cutting welding , and grouting, upto 10 meter bldg height from the ground all as directed by Engineering - in- charge.

S&F in repairs, temperature gauge (0-1000 degree C) cylindrical type complete all as specified and as directed by the Engineer-in-Charge.

S&F in repairs, Pressure gauge (0-7 Kg/ cm sq) cylindrical type complete all as specified and as directed by the Engineer-in-Charge.

Dismantling/ taking down the old damaged /corroded part of the foundation of motor and pumps renewed foundation of motor and pump incl MS support channel ,hard standing painted in existing colour and proper alignment of motor, pump complete all as specified and as directed by the Engineer-in-Charge.

Dismantling/taking down the old damaged /corroded part of the foundation of Compressor renewed foundation of compressor incl MS support channel ,hard standing painted in existing colour complete all as specified and as directed by the Engineer-in-Charge.

Supply and fixing in repair ACB 630 Amps FP 36 KA 415 Volt existing model and make complete all as specified and directed.

Supply and fixing in repair upto MCCB 500 Amps FP 36 KA 415 Volt existing model and make complete all as specified and directed.

Supply and fixing copper cable PVC insulated sheathed 1100 volts grade multi core copper conductor round 3 core 10 Sq.mm,incl taking down old unserviceable all as specified and directed.

Supply and fixing copper cable PVC insulated sheathed 1100 volts grade multi core copper conductor round 3 core 6 Sq.mm,incl taking down old unserviceable all as specified and directed.

Taking down cable tray and Supply and fixing of GI slotted tray for laying of copper cable complete with all accessories for the covering of cable try of the following sizes complete all as specified and directed

2'' x 6'' x 2'' size.

2'' x 12'' x 2'' size

Material & Labour for carrying out the chemical servicing of the Air cooled condensers & cooling coils by applying the non-acidic scale removing agent to the fins area of the cooling coil, copper tubes, remove the complete scale deposit across the coil, flushing through and complete blowing out the dirt, cleaning the fan impellers, filter section, fan section, and complete cleaning filters, tightening of all bolts & nuts, renew the rusted bolts & nuts checking the alignment of the drive set and testing & commissioning the Air cooled condenser of AC Plant up to 120 TR complete all as directed.

Taking down the defective condenser fan motor of weather proof type 915 RPM 3 Phase , 415v, 50HZ, S1 duty, 1.9 KW, from the chiller plant, transporting to local work shop, dismantling taking out the burned winding coil, cleaning the stator with CTC/petrol removal all carbon, rewinding the stator with super enamelled copper wire of appropriate guage, and connected material, class F insulation with IP55 degree of protection, replacing of both end bearing, corroded bolts,nuts,brackets with flanges, rubber mounting bushes etc and assembling, transporting back to site, fixing to position connecting the cable, fixing fan blades and testing the motor, as per the existing rotation of direction.

Notes: (i) The contractor shall generally be liable for 24 hours call back services but strictly ensure availability of his responsible representative during the entire period of the contract for attending all types of complaints. He shall promptly be attend and the call back shall not be kept pending for more than 12 hours of intimation to contractor via e-mail/electronic media. The contractor shall obtain the signature of the Eng-in-charge in token of satisfactory completion of defects. (ii) In case of delay in the rectification of any defects is more than 24 hours for minor defects and more than 72 hours for major defects, the GE may at his absolute discretion to impose on the contractor to pay to the department a penalty of Rs 5,000/- for minor defects and Rs 10,000/- for major defects towards inconvenience caused to the users. The decision of the GE as to whether a particular defect occurred is minor or major will be the final and binding. The above penalty shall be in addition to the provision made in condition 50 of IAFW-2249.

suresh electricals

SRIVALLI ENGINEERS

COOL CONTROL

SRIESWARI ENTERPRISES

VISHAL INTERNATIONAL