MANNING AND OPERATION TO COLD/COOL ROOM CENTRAL AC PLANTS AT BV YARD, TRS II, CQAE AC PLANTS AT NAD INCLUDING PERIODICAL PREVENTIVE MAINT OF PACKAGE TYPE ACs OF BVY, INS VISWAKARMA AND NAD UNDER AGE E/M NO.II OF GE(U-II) VISAKHAPATNAM

Amount

Manning, Operation and maintenance of Cold AC Plant of capacity 2 X 16 TR of Make: Voltas & Cool AC Plant of capacity 2 X 5 TR of Make Voltas and 125 KVA DG set, including attending to minor defects like replacement of bolts, nuts, washers, greasing and gland packing to pump for smooth and trouble free operation, keeping an hourly record of plant and inside room temparatures for 24 hours, in 03 shifts a day providing one skilled operator including sundays and holidays at BV Yard complete all as specified and directed by Engineer-in-Charge. Manpower: One skilled AC operator per shift. Shift Timings Ist shift: 06.00 to 14.00, IInd Shift:- 14.00 to 22.00 III rd Shift: 22.00 to 06.00

Notes: The quoted rate is inclusive of following :- (a) One unit shall run at a time and one as standby in AC Plants and maintaining desired temparature. (b) Cleaning of cooling tower sump weekly once and cleaning of plant surrounding area, plant room daily.

Manning, operation and maintenance of AC Plant 2 x 16 TR with connected items, at CQAE of Voltas Make, including attending to minor defects for smooth and trouble free operation and keeping an hourly record of plant and inside room temperatures complete, by providing one skilled operator in General shift of 08 hours duration, including sundays and holidays, complete all as directed. Shift timings 0900 to 1700 Hrs

Note:- a)One unit shall run at a time and one as standby in AC Plants and maintaining desired temparature. (b) Quoted rates are inclusive of consumble stores such as grease, lubricants, cotton waste, minor spares. (c) One emergency light, Digital Psychrometer at each AHU & AC rooms and necessary tools should be available in a tool box with operator for smooth functioning. (d) The quoted rate is deemed to be inclusive of maintenance of external water supply works.

Manning, operation and maintenance of water cooled type chiller AC Plant 3 x110 TR with connected items, at TRS-II at NAD of Voltas Make model No.EGWFXR 1201MLB2, including attending to minor defects for smooth and trouble free operation and keeping an hourly record of plant and inside room temperatures complete, round the clock in 03 shifts of 08 hours each, by providing one skilled operator in each shifts of 08 hours duration, including sundays and holidays, complete all as directed. Shift Timings Ist shift: 06.00 to 14.00, IInd Shift:- 14.00 to 22.00 III rd Shift: 22.00 to 06.00

Note:- (a) Rate quoted shall be deemed to be inclusive of preventive & breakdown maintenance of all the equipments by replacment of bolts, nuts, washers, greasing, gland packing to pump, changing of V belts & tyre couplings but excluding major repairs to plant. (b) Take care of house keeping environmental cleanliness, cutting of grass,, maintain operating chart, safety chart & cleaning of installation surrounding area. (c) Quoted rates are inclusive of consumble stores such as grease, cotton waste, minor spares. (d) One emergency light, Digital Psychrometer at each AHU & AC rooms and necessary tools should be available in a tool box with operator for smooth functioning. e) The quoted rate is also inclusive of maintaining log sheets and uniform of duty persons.

Note for item Nos. 1 to 3:- (a)To maintain the logsheet for AC plant, DG sets, duty rooster, wages register and attendence registers. (b) Before commencement of work the contractor shall submit the list of manpower to be employed as per requiste qualifications specified in particular specification for approval of GE duly recommended by Engineer-in-Charge.

Supply and replace of PCB and sensors for 10000 BTUH (1x 10000) cold storage plant including all necessary control wiring complete complete all as specified directed.

Supply and replace of corded remote hand set for 10000 BTUH (1x 10000) cold storage plant including all necessary control wiring complete complete all as specified directed.

M&L for descaling of 16 TR capacity condensers by isolating the condenser by closing the water inlet and outlet connections, re-circulating dilute HCL by descaling pump until the scale is removed, opening the both end covers of the condenser, brushing the condenser water tubes with nylon brush until the scale and dust deposits are removed, neutrlising with caustic soda solution, flushing out the tubes with fresh water, refixing the condenser end covers after replacing the worn out minor parts like gaskets, bolts, nuts, washers etc, opening the inlet and outlet water line connections and including testing and commissioning complete all as specified and directed by Engr-in-Charge:-

All as per SL item No.6 above but condensor of capacity 5 TR

M&L chemical servicing of the air cooled indoor and outdoor units of capacity 5.5 TR of AC plant by dismantling the sheet metal parts and including applying the organic compound of HCL with water for removing scale on the air cooled condenser, fins, tube area and flushing through forced method, till removal the complete scale deposit across the fins, tube and cleaning, fixing the sheet metal parts, fan blades etc, complete all as specified and directed.

M&L dismantling 7.5 HP capacity centrifugal pump coupled with electric motor 3 phase, 415 Volts for overhauling, cleaning with kerosene / petrol for removing the scales, replacement of case ring, latern ring, shaft sleeve, CI gland covers with MS studs, ball bearings, coupling key, rubber bush, nut, bolts, impeller key, lock washer, gasket, greasing etc, re-assembling the same in its position, testing and commissioning complete all as specified and directed by the Engr-in-Charge.

Supply and replace 3/4 pole Contactor MNX 16/32, 230 V 50 HZ complete all as specified directed.

Supply only refrigerant gas F-22 [Make: Floron/ Mafron]

Supply only compressor oil B 5.2/P-160

Supply only compressor oil. Make: Veedol -68/ Sheethal N-68

Supply only refrigerant gas R-410/407 [Make: Floron/ Mafron]

Supply only refrigerant gas R-134A [Make: Floron/ Mafron]

Supply and replace Auto defrosting contactor MNX-63, 230 V 50 HZ complete all as specified directed. Make:- L & T/ ABB/ BCH/ Siemens/C&S Legrand

M&L overhauling for 30 TR capacity cooling tower, including aligning of fan blades, replacment of CT motor bearings, shaft bush and carrying out repairs to cooling tower (FPR type), replacement of defective parts such as nozzles, mesh, common header, valve pipe, tee and bends, bolts and nuts, servicing of stainer, replacement of defective mesh, bottom base, arresting of leakages and removing of fungus from CT base, and applying one coat of white washing to the the PCC base complete all as specified directed by Engineer-in-Charge.

M&L for carrying out leak test for cold room storage plant of capacity 16 TR condensor using nitrogen gas and rectifying the leakages, arresting the leakages and including charging gas, testing and commissioning complete all as specified and directed by Engineer-in-Charge. Note: (i) Refrigerant gas R-22 will be measured and paid separately. (ii) Necessary copper pipes, welding works are deemed to be included in the quoted rate.

All as per SL item No.18 above but 16 TR capacity compressor.

All as per SL item No.18 above but refrigent valves, guages, drivers and safety valves of 16 TR capacity AC Plant

All as per SL item No.18 above but 5 TR capacity condensor.

All as per SL item No.18 above but 5 TR capacity compressor.

All as per SL item No.18 above but refrigent valves, guages, drivers and safety valves of 5 TR capacity AC Plant

M&L for carrying out leak test for Ductable package/split AC plants of capacity upto 5.5 TR using nitrogen gas and rectifying the leakages, arresting the leakages, including charging gas, testing and commissioning complete all as specified and directed by Engineer-in-Charge. Note:- (i) Necessary copper pipes, welding works are deemed to be included in the quoted rate. (ii) Refrigerant gas R-22 shall be measured and paid separately.

All as per SL item No.24 above but 7.5/8.5 TR capacity.

Supply and replacement of existing air grill of size 0.60 x 0.60 metre . Make: Air Breeze/ Ravistar/ Air Master

Material and Labour for overhauling to reciprocating open/semi sealed compressor of capacity 16 to 25TR of any make by stripping out both end cover, cylinder head, cylinder, connecting rod, crank shaft, oil pump, side cover etc., and reconditioning of crank shaft by white metal finishing, replacement of bushes, bearings, worn-out parts (suction & discharge), springs, lifting pins, gasket set, testing and commissioning complete all as specified and directed by Engineer-in-Charge.

Note: - (i) The quoted rate deemed to be inclusive of replacement of wornout/ unserviceable main Bearing pump end , Main Bearingseal end, Connecting rod bearings, Piston Ring, Piston pin oil ring, Discharge Valve guide assy, Seal Cover plate for, Gasket set ,Oil Relief valve Assly, S V Spring, Pin Valve filter ,Valve lifter pin spring, DV Seal lock washer, Oil Pump Bush, SE Bearing washer, Thrust Washer, Pump end Bearing washer, Oil Filter screen, Lock ring piston pin, SUC Strainer assy, Crank case Heater, Shaft bolt, Neoprene Bellow etc.. complete all as specified and directed. (ii) Gas, compressor oil, spares will be measured and paid separately.

Supply only of the following spare parts suitable for semi-sealed compressor of 16 to 25 TR capacity Make: voltas:-

Crank shaft assly with key & lock nut

Piston

Connecting rod assembly

Valve Plate

Cylinder sleeve

Shaft seal assembly

Bellow for C.C.Valve

Hydraulic relay

Oil Pump Package

UN Sleeve

Unloader assembly

M&L for disconnecting semisealed compressor motor of 15 to 20 HP capacity from the existing place (condenser pump set motor etc,) including rewinding the motor with existing gauge copper conductor, varnishing and drying, replacement of worn-out bearings (DE& NDE), bushed connectors, terminal plate and fixing back in its original position, connecting cable through terminal block, applying one coat of synthetic enamel paint of existing colour complete all as specified and directed by Engineer-in-Charge.

All as per SL item No.29 above but 5 HP capacity.

M&L for taking down existing 16 TR capacity compressor cooling fan, varnishing the winding, replacing the bearings, greasing and refixing the same in existing position complete all as specified and directed.

Repair and maintenance of microprocessor unit of the ductable package / split units of capacity upto 5.5 TR and including renewal of defective unserviceable spare parts of PCB body, connected wiring, suitable connectors and other necessary accessories complete all as specified and directed by Engineer-in-Charge.

Supply and replace Liquid line drier unit of 5/8-1/2 flare type complete complete all as specified and directed

Disconnecting the filter bed from the AHU's of various sizes cleaning the air filters, removal of complete dirt deposited inside cooling coil, fins area by spraying scale removing agent and flushing out with fresh water till removal of complete dirt from the fins, flushing out with air bolwer and refixing the same in existing position complete all as specified and directed by the Engineer-in-Charge.

M&L for preparation of surface and applying one coat of synthetic enamel paint to package type AC Plants of capacity (1 x 16 TR & 1 x 5 TR) ,including out door units of AC Plant, control panel of AC plants complete all as specified directed by Engineer-in-Charge. NOTE: The quoted rate is deemed to be included for cleaning of approaches surrounding outdoor unit for carrying out painting of the plant.

M&L for preparation of surface and applying one coat of synthetic enamel paint to package type AC Plants of capacity (2 x 16 TR ) ,including out door units of AC Plant, control panel of AC plants complete all as specified directed by Engineer-in-Charge. NOTE: The quoted rate is deemed to be included for cleaning of approaches surrounding outdoor unit for carrying out painting of the plant.

All as per SL item No.36 above but of capacity upto 1 x 5.5 TR

M&L for disconnecting motor upto 2 HP capacity from the existing place (AHU / chiller / condenser unit / cooling tower motor etc,) including rewinding the motor with existing gauge super enamelled copper conductor, varnishing and drying, replacement of worn-out bearings (DE& NDE), bush connectors, terminal plate and re-fixing in its original position, connecting cable through terminal block, painting exposed surfaces with one coat of synthetic enamel paint of existing colour, testing and commissioning complete all as specified and directed by Engineer-in-Charge.

All as per SL item No.38 above but 5 to 7.5 HP capacity.

M & L for Jungle cleaning by cutting and clearing away all grass vegetation, wild growth, sapling, shrubs, brushwoods, under growth roots, cutting of bushes, tree trunk of girth not execeeding 30 cm, cutting of trunk, portion protuding over ground, filling holes and leveling of ground and removing unserviceable materials to a distance n.exe 50m, compelte all as speicified

M&L for repair and maintenance of control panel board of AC plant of the cold / cool room AC plant of capacity upto 16 TR and including replacement of defective unserviceable spare parts of temparature indicator, connected wiring, suitable connectors & other required accessories complete all as specified and directed by Engineer-in-Charge.

Supply and replace Over load relay suitable for 5.5 TR outdoor unit motor starter complete all as specified and directed.

Supply and replace Over load relay suitable for 5.5 TR indoor unit motor starter complete all as specified and directed.

Supply and replace Pilot solenoid valve coil complete all as specified and directed. Make: Divine/ Pilot/ Sant/ Emerald/ Sporlon/ U-flow

Supply and replace 200 mm bore MS pipes 6.34 mm thick with all fittings laid in floors or fixed to walls and ceilings etc, complete all as specified and directed by Engineer-in-Charge.

All as per SL item No.45 above but 125 mm bore 5.40 mm thick.

Repair and maintenance of digital MCS EXV driver of Microprocessor controller system complete all as specified and directed by Engineer-in-Charge.

Supply and replace 3 pole Contactor 100 Amps, 230 Volts (Model 3TS47 of SIEMENS) complete all as specified directed.

Supply and replace 3 pole Contactor 120 Amps, 230 Volts (Model 3TS50 of SIEMENS) complete all as specified directed.

Supply and replace temparature controller for cold/cool room complete all as specified and as directed.

Supply and replace automatic temparature sensors for cold/cool room complete all as specified and as directed.

Supply and replace electronic control board of DG set of capacity 200 KVA with necessary nuts and bolts and fixing accessories complete all as specified and as directed.

SRIESWARI ENTERPRISES

Chitturi Associates

LAKSHMI SAI CONSTRUCTIONS

ANAND ENTERPRISES AND ENGINEERS