PERIODICAL, MAINTENANCE OF REPAIR OF DUCTABLE AC PLANT AND ALLIED WORK AT NAVAL DOCKYARD VISAKHAPATNAM UNDER GE (I) (DM) VISAKHAPATNAM

Amount

Material and labour for cleaning of air duct of any size as per plant ducts length including ducts filter and repairing/replacement / tighting existing sizes nuts, bolts, packing material etc., by brush, cleaning agents complete all as specified and directed.

Material and labour for cleaning of air defuser and repairing/ replacement / tighting existing sizes nuts, bolts, packing material etc., by using brush, cleaning agents complete all as specified and directed.

Material and labour for repairs and overhauling of blower motor of ductable AC plant upto 1.5HP capacity by disconnecting and taking out from the bed, replacement of worn out bush/ball bearing, lugs, studs, bolts etc., re-installing in it's original position including painting the motor body with one coat of synthetic enamel paint, connecting up, testing all as specified and directed.

Taking out unserviceable remote assembly with senser from indoor unit of ductable AC unit, supply and fix new remote assembly with senser suitable of 7.5 TR ductable AC unit complete control wiring, checking, correcting all specified and directed. Make : Carrier/Voltas/Blue star

Taking out unserviceable fan blade from outdoor unit of ductable AC unit, supply and fix new fan blade suitable for & upto 8.5 TR AC unit, checking, correcting alignment of fan motor, tightening of loose nuts, bolts, etc., testing and commissioning all as specified and directed. Make :- Carrier/Voltas/Blue star

Supply and charging of R-22 gas all as directed Make:- Refron 22/Floron 22/Mafron 22

Material and labour for taking out the defective pressure cut-outs of any range and model and supply & fix new pressure cut-outs, connecting the pressure lines/control wiring, leak testing and commissioning complete all as specified and as directed Make:-Indofoss/Danfoss/Ranco a) HP/LP pressure cut-out MP-15

All as per item No. 7.00 above but Low pressure cut-out MP-1

All as per item No. 7.00 above but High pressure cut-out MP-5

All as per item No. 7.00 above but Oil pressure cut-out MP-55

M&L for painting of outer surface of multiple section of complete LT Panel board size up to 5.5m x 3.2m in one substation comprising ACBs/MCCBs/SDFs ,busbar chamber, swich gear chamber, metering chamber cable termination/tray using one coat of synthetic enamel paint after preparation of surface, providing protection cover to all metering equipment, panel meters, switchgears, cleaning of all meters and switch gears complete all as specified and as directed.

Material and labour for complete checking, servicing / rectification of electrical circuits for all units and control wiring showing phase sequence with proper lugging of AC plant control panel including replacement of fused indication lamps with new ones, cleaning of all power contacts, rectification of minor defects in Ammeters and Voltmeters, testing and commissioning complete all as specified and as directed. Note :- Material such as indication lamp, ammeter, voltmeter will be measured and paid separately.

Supply and fix in repairs pilot solenoid valve to the refrigerant system, reconnecting the refrigeration piping including leak testing, brazing to the pipe line, necessary copper tubing etc wherever required complete all as specified and as directed. Make :- Sporlon/Donfos

Material and labour for taking out unserviceable condensor from ducatble type unit 7.5 TR capacity by disconnecting all electrical connection refrigerant lines condenser water pipe lines and supply & fixing new condensor aircooled type and making all connections, electrical, refrigerant and condenser, water pipe lines, and pressure testing with nitrogen gas under constant pressure of 250 PSI for 24 hours, vaccumization, performance test and commissioning and charging the gas to unit making alignment complete all as specified and as directed. Make : Voltas/Carrier

All as per item No. 64.00 above but for 7.5 ton capacity.

Supply , fabricate and instalation of MS sheet enclosure made out of 2mm gauge MS sheet suitable for accommodating 5/7.5 TR capacity of ductable AC outdoor unit including painting with two coats of synthetic enamel paint over a coat of redoxide primer and taking out corroded MS Sheet enclosure complete all as specified and as diricted. Note :- 1. Unit rate quoted shall be deemed to include for providing ISMC & angle iron of size as existing for mounting the enclosure embedded in and including necessary brick work duly plastered and finished all as directed. 2. Electrical connection, refrigerant lines compressor, blower, condenser, water pipe lines and gas charging will be measured and paid for separately.

Taking out unserviceable A -27 V-Belts and Supply and fix V-Belt of “A” section of size A-27, all as specified and directed. Make : Fenner/Dunlop/Gate

All as per item No. 17.00 above but A-28

All as per item No. 17.00 above but A-29

All as per item No. 17.00 above but A-30

Taking out unserviceable V-Belts and supply and fix B - 62 size all as specified and directed. Make : Fenner/Dunlop/Gate

All as per item No. 21.00 above but B-63

All as per item No. 21.00 above but B-66

All as per item No. 21.00 above but B-68

All as per item No. 21.00 above but B-96

All as per item No. 21.00 above but B-98

All as per item No. 21.00 above but B-128

All as per item No. 21.00 above but C-158

Supply and fix PVC mesh Air filters with MS frame suitable for 5 to 7.5 TR package AC plants including taking out old unserviceable filter complete all as specified and as directed.

Material and labour for taking out unserviceable filter drier from package type AC unit 5/7.5 TR and fixing the same complete all as specified and as directed Make:- Sporlon/Danfoss

M&L for repairs/maintenance of 5 to 7.5 TR package units by leak testing with N-2 gas under constant Pressure of 250 PSI (17 kg/cm2) after complete transfer of refrigerant gas from the entire system, rectification of leakage by cutting and brazing the refrigeration system wherever required, replacement Of “O” rings, teflon washers of valves, copper tubing, safety valves, flare nuts etc., neutralising after the Pressure holds, good for atleast 24 hours, vaccumization, charging the system with refrigerant Gas, performance test and commissioning complete all as specified and as directed. Note : Referigerant gas will be measured as supply only.

Material and labour for cleaning of evaporator coil with caustic soda neutralising with fresh water blowing with electric blower for package type AC unit and replacement of canvas cloth with Zip arrangement for jointing the duct as required at site, complete all as specified and as directed.

Supply and fix pressure gauge for suction/discharge refrigerant lines and water lines of square/round type 2"/4" dial of following ranges for Package/Central type AC plants including taking down old unserviceable pressure gauge complete all as specified as directed. Make -Air Master/Febig/Scientific (a) 0-150 PSI for refrigerant line

All as per item No. 33.00 above but 0-300 PSI for refrigerant line

All as per item No. 33.00 above but 0-12 Kg./cm2 for water line

Material and labour for weekly cleaning of entire package AC plant buildings inside wall, ceiling, floor and outside wall, plinth protection with suitable brush/broom/wiper, removing wild vegitation around substation building complete all as specified and as directed.

Supply and fix rubber insulating mat in front of LT panel board of size 2 mm thick, 1 m width up tp 3.3 KV, taking out old unserviceable one make RPG or equivalent as approved by GE.

Supply and fix indication lamps (LED type) red, yellow and blue in colours of 22.5 mm dia to monitor on LT panel board suitable for 240 V AC supply and taking down unserviceable indication lamps complete all as specified and as directed. Make:-Siemens/C&S/schneider/ABB

Material & labour for taking down unserviceable burnt compressor, supply and fix new sealed scroll compressor suitable for 7.5/8.5 TR water cooled package units

Material & labour for taking down unserviceable burnt compressor, supply and fix new sealed scroll compressor suitable for 5.5 TR water cooled package units complete all as specified and as directed.

Material & labour for taking down unserviceable burnt compressor, supply and fix new sealed scroll compressor suitable for 8.5 TR ductable unit complete all as specified and as directed.

Supply and fix remote assembly with senser from indoor unit of ductable AC unit, suitable for 8.5 TR ductable AC unit complete with control wiring, checking, correcting complete all as specified and as directed including taking down the old assembly.

Supply and fix MS angle iron, flats, cut to required length, making necessary shape, screw holes fixing with necessary electric welding, painting one coat of red oxide and two coats of synthetic enamel paint to all sides of steel members including dismantling and taking down the unserviceable one.

Material and labour for disconnecting, taking out the blower motor of ductable AC plant upto 1.5 HP capacity from the bed, tranportation to workshop and removing the existing winding and rewinding with new super enameled copper wire of same gauge and same number of turns after thorough cleaning of stator body and rotor applying insulating varnish, drying up by heating for improving ohmic valve, reassembling the motor by replacement of both end bearings, including painting with one coat of synthetic enamel paint, reinstalling on its original position connecting up, testing all as specified and as directed.

S & F new PCB of existing make and model in 7.5 / 8.5TR ductable AC and connecting up complete including taking down old unserviceable one and complete all as specified and as directed.

Material & labour for PCC (1:2:4), type B1 (using 20 mm graded stone aggregate) as in foundation filling, repairs to damaged floors including necessary form work and finishing the exposed surfaces of concrete fair and even & including of dismantling of PCC & throwing debris outside of ND (V) complete all as specified and as directed.

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SRI SIDDHI VINAYAKA ENTERPRISES

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VENKATESWARA TECHNOLOGY

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