87703 REPAIRS/MAINTENANCE TO CENTRAL AC PLANT TO CERTAIN STORAGE ACCOMMODATION OF SONABUOY AND NAD AT INS RAJALI ARAKKONAM

Amount

SCHEDULE 'A' PART-I (AC PLANT WORK)

Material & Labour for leak test and gas charging by vacuumising complete system of Central type AC plant of of capacity 110 TR with double stage vaccum pump of (-) 2 Kg/sqcm vaccum pressure after repairs to compressor or Repair in Refrigeration System, Charging the Dry nitrogen gas & hold up to 24 hrs and rectifing the leakage if any by bracing/welding/ replacing the "O" ring & Gland packing of service valve including Top up the compressor oil and charging the refrigerant gas upto desired pressure all as specified , instructed & directed. Note :- i) Once the Gas charged in system, it should hold in the system minimum six months if any gas leaked from the system the contractor has to charge the gas upto required level on free of cost and No extra cost on this account shall be claimed. ii) Compressor oil and Refrigerant gas shall be measured and paid separately under relevant item as supply only. iii) Labour charge for replacement of compressor oil and refrigerant gas is deemed to be included in the quoted rate. iv) leakage test on each complete unit shall be measured separately.

All as per item No 2 herein before but of capacity 38 TR complete all as directed.

All as per item No 2 herein before but of capacity 25TR complete all as directed.

Material & Labour for Descaling the condenser coil of Central type AC plant capacity 110 TR full system by circulating descaling chemical with water (made ph value of circulating water 01) through cooling tower re-circulating pump set up to 2 to 3 hours and open the end cover of condenser and manually cleaned the inner tubes with nylon brush until complete scale get removed and flush out with fresh water. Reconnecting the condenser end cover by replacing rubber gasket, bolts, nuts and including cleaning of cooling tower,make up water tank etc as required including commissioning in all respect complete all as directed. Note :- (i) Servicing of descaling to be carried out twice in the entire contract period and Each job will be measured and paid separately. (ii) during descaling any damage to copper coil which leads leackage of gas, contractor shall be resposible to rectify the damage and gas to be filled after leak test without any extra cost (iii) Full system include total Number of condensers in the mentioned capacity AC Plant

All as per item No.5 herein before but of capacity 38 TR full system

All as per item No. 5herein before but of capacity 25 TR full system

All as per item No. 5 above but for chiller of Central AC plant of capacity 110 TR full system

All as per item No. 5 above but for chiller of Central AC plant of capacity 38 TR full system

All as per item No. 5 above but for chiller of Central AC plant of capacity 25 TR full system

S &F Butterfly Valve of size 150 mm dia, with replacement of bolts, nuts, washers and rubber gaskets including dismantling of old unserviceable Butterfly valves any type 150 mm dia pipe complete all as directed and specified. Make: LP/leader/kirloser/Sant.

All as per item No.11 above but for 100 mm dia completed all as specified and directed.

All as per item No.11 above but for 80 mm dia complete all as specified and directed.

All as per item No.11 above but for 50 mm dia complete all as specified and directed.

Maintenance and repairs to compressor unit of Central type AC plant capacity 110 TR including fault finding and rectification including its calibration all as specified and directed. Note :- (i) Repair/ servicing work to be carried out only by service person of OEM or his authorised agency. (ii) Contractor must submit service report from OEM/his authorised service agency after repair by them. (iii) Servicing of PCB wiil be paid seperately under relavent item

All as per item No.15 above but for chiller of Central AC plant of capacity 38 TR

All as per item No.15 above but for chiller of Central AC plant of capacity 25 TR

S&F of "V" belt of size A-57 any type including dismantlig of old unserviceable V- belt of size A-57 any type complete all as specified and directed. Make :- FENNER / DUNLOP / V GRIP

All as per item No 18 above but for size A-83 complete all as specified and directed. Make :FENNER / DUNLOP / V GRIP

All as per item No 18 above but for size B-70 complete all as specified and directed. Make :FENNER / DUNLOP / V GRIP

All as per item No 18 above but for size B-124 complete all as specified and directed. Make :FENNER / DUNLOP / V GRIP

Taking down the centrifugal pump set,12 to 15 HP , 3 phase, 415 volts, 50 Hz ( condenser & Chilled water re-circulating pump set) for servicing /overhauling by replacing unserviceable Bush & bearings, gland packing , studs, gasket etc including machining work to shaft reassembled the pump set, including painting with two coats of synthetic enamel paint including erecting testing and commissioning complete all as specified and directed.

All as per item No 22 herein before but of capacity 10 HP complete all as specified and directed.

All as per item No 22 herein before but of capacity 7.5 HP complete all as specified and directed.

All as per item No 22 herein before but of capacity 5 HP complete all as specified and directed.

Taking down the condenser/chiller water recirculating pumpset along with MS frame from the existing foundation .Supply, fabricate MS frame of same type and size as per existing specification including welding and fixing including painting with two coats of synthetic enamel paint and incl connecting inlet & Outlet, electrical connections of pump etc for smooth functioning complete all as specified and directed.

Taking down the unserviceable motor of 2HP/3HP capacity and dismantling including taking out damaged/burnt out winding from motor, cleaning the slots with CTC and rewinding the same with new super enamelled copper winding wire of existing gauge and turns, oiling and greasing assembling and installing back into position for making motor fully functional and testing for satisfactory running complete all as specified and directed

All as per item No 27 above but for capacity 5 HP complete all as specified and directed.

All as per item No 27 above but for capacity 7.5 HP complete all as specified and directed.

All as per item No 27 above but for capacity 10 HP complete all as specified and directed.

All as per item No 27 above but for capacity 15 HP complete all as specified and directed.

Supply only Compressor oil (grade as per manufacturer recommendation) complete all as specified and directed.

Supply only Refrigerant gas R-134A complete all as specified and directed.

Supply only Refrigerant gas R-407C complete all as specified and directed. Note for item No 32 to 34 - Labour charge is deemed to be included in the quoted rate of relevant repair items.

Material and labour for taking down the burnout / defective scroll type compressor from 12.5 TR unit and replace the factory made compressor, testing and commissioning complete all as specified and directed. Note :- (i) Leak test , Vacuuming & Refrigerant gas shall be measured separately under relavant items. (ii) compressor under one year warranty contractor responsible

Material & Labour for Servicing and cleaning of Air Handling Units ( AHU's ) at Sonabuoy complex incl humidification pumps of central type A/ C including taking down and cleaning of air filters by castic soda and flushing with water and refixing in original position and cleaning of fire dampers , blowers , spray nozzles , condensate water tray including greasing of blower bearing / blower motor , tightening belt, all bolts, nuts and testing for proper functioning complete all as specified and as directed. Note :- (i) Servicing of AHU to be carried out twice in the entire contract period and Each job will be measured and paid separately. (ii) Spares required for replacement if any shall be measured and paid separately under relevant items as supply and fixing.

All as per items No 36 but for AHU'S at MK-54 complete all as specified and directed

All as per items No 36 but forAHU'S at Magzine 'A' complete all as specified and directed

Supply & Replace the MS lov - joy (Male & Female) coupling complete with star rubber disc as per sample for condenser recirculating pump & chilled water pump complete all as specified and directed.

Supply & Replace the star nylon disc for lov - joy as per sample for condenser recirculating pump & chilled water pump complete all as specified and directed.

Supply and fix expansion valve suitable for 110 TR central AC plant complete all as specified and directed.

Supply and fix expansion valve suitable for 38 TR central AC plant complete all as specified and directed.

Supply and fix expansion valve suitable for 25 TR central AC plant complete all as specified and directed.

M&L for dismantling and removing the unserviceable Thrust bearings from the Air handling Units of the central type A/C plants and repalcing with new Thrust bearing of same type / model , assembling back , reinstalling, connecting and testing complete all as specified and directed

M&L for servicing and cleaning of water strainer/ NRV of size up to 150 mm with chemical for removing all dust particles, scales and unwanted materials complete all as specified and directed.

Supply and replace oil pressure cutout complete all as specified and directed. Make : indfoss/danfoss

Supply and replace water pressure cutout complete all as specified and directed. Make : indfoss/danfoss

Supply and replace pressure gauge/Temperature gauge glycerin type complete all as specified and directed. Make :Waaree

Supply & replace temperature sensor for water entering & leaving from condenser / chiller A/C plant/ AHU room complete all as specified and directed. Make: Danfoss/indfoss/ Copeland

Supply and replace single phase preventer unit 415 V,3Ph. Make : Minilec, Model : VSP-3 415 Volt AC, 3 Phase, 50 Hz/L&T/Siemens.

Supply & Replace HP /LP pressure cutout switch complete all as specified and directed. Make: Danfoss/indfoss/ Copeland

Supply & Replace HP/LP pressure switch complete all as specified and directed. Make: Danfoss/indfoss/ Copeland

M & L for Servicing of Microprocessing unit control panel board PCB with display for Central AC Plant of capacity 110 TR complete all as specified and directed. Make: Carrier/voltas/blue star

All as per item No 53 above but for Central AC Plant of capacity 38 TR complete all as specified and directed.

All as per item No 53 above but for Central AC Plant of capacity 25 TR complete all as specified and directed.

Supply and replace microprocessing unit PCB set as per recommendation of manufacturer for functioning of Central Air conditioning plant of capacity 110 TR complete all as specified and directed. Make: Carrier/Voltas/Bluestar

All as per item No 56 above but for Central AC Plant of capacity 38 TR complete all as specified and directed.

All as per item No 56 above but for Central AC Plant of capacity 25 TR complete all as specified and directed.

Taking down the defective hot water generator and dismantling for servicing /overhauling including replacing unserviceable accessories, and re-erecting including all connections including testing complete all as specified and directed.

S &F of electrical contactor set for 3 pole contactor AC3, 140A, 02 NO+02 NC as existing including taking down of uncerviceable electrical conractor complete all as specified and directed. Make: BCH/L&T/Siemens.

All as per item No 61 above but for Contactor Set for 3 pole contactor AC3, 110 A, 02 NO+02 NC as existing complete all as specified and directed. Make: BCH/L&T/Siemens.

All as per item No 61 above but for Contactor Set for 3 pole contactor AC, 70 A, 02 NO+02 NC as existing complete all as specified and directed. Make: BCH/L&T/Siemens.

All as per item No 61 above but for Contactor Set for 3 pole contactor AC, 415V, 32 Amps as existing complete all as specified and directed. Make: BCH/L&T/Siemens.

All as per item No 61 above but for Contactor Set for 3 pole contactor AC, 415V, 25 Amps as existing complete all as specified and directed. Make: BCH/L&T/Siemens.

All as per item No 61 above but for Contactor Set for 3 pole contactor AC, 415V, 18 Amps as existing complete all as specified and directed. Make: BCH/L&T/Siemens.

S &F of over load relay (direct mounting) of range 63-80 Amps as existing including taking down of uncerviceable over loady relay complete all as specified and directed. Make: BCH/L&T/Siemens.

All as per item No 67 above but for range 100-160 Amps complete all as specified and directed. Make: BCH/L&T/Siemens.

S &F of Timer electronic 3-60 sec, 230-400 V AC, 50 Hz as existing including taking down of uncerviceable Timer electronic complete all as specified and directed. Make: BCH/L&T/Siemens.

S &F of switch fuse unit 3 Pole, 200A, 400 V AC as existing including taking down of uncerviceable switch fuse unit 3 Pole, 200A, 400 V AC complete all as specified and directed. Make: BCH/L&T/Siemens.

Supply and replace Air filter 5 Micron of size 1.2M x 1.2M washable type suitable for AHU of Central Air conditioning plant complete all as directed.

S & F new NRV butterfly type of size 150 mm bore with replacement of bolts , nuts , washers and rubber gaskets including dismantling of old unserviceable NRV of size 150 mm bore complete all as directed. Make: Zoloto/leader/kirlosker

All as per item No 72 above but for 100 mm bore complete all as specified and directed.Make: Zoloto/leader/kirlosker

All as per item No 72 above but for 80 mm bore complete all as specified and directed. Make: Zoloto/leader/kirlosker

All as per item No 72 above but for 50 mm bore complete all as specified and directed. Make: Zoloto/leader/kirlosker

S & F new Water strainer of size 150 mm dia, both flanged "U" type and suitable for existing location with replacement of bolts, nuts , washers and rubber gaskets including dismantling of old unserviceable water strainer of size 150 mm dia complete all as specified and directed. Make: Zoloto/leader/kirlosker

All as per item No 76 above but for 100 mm dia complete all as specified and directed. Make: Zoloto/leader/kirlosker

All as per item No 76 above but for 80 mm dia complete all as specified and directed. Make: Zoloto/leader/kirlosker

All as per item No 76 above but for 50 mm dia complete all as specified and directed. Make: Zoloto/leader/kirlosker

Supply and replacement of MCCB 4 Pole, 36 KA, 250 Amp, adjustable type,specification ,440V, 50 Hz, with extended terminal & spreader link Make : Legrand / L & T/ Siemens/ ABB/ Schneider

Supply and replacement of MCCB 4 Pole, 36 KA, 200 Amp, adjustable type,specification ,440V, 50 Hz, with extended terminal & spreader link Make : Legrand / L & T/ Siemens/ ABB/ Schneider

Supply and replacement of MCCB 4 Pole, 36 KA, 160 Amp, adjustable type,specification ,440V, 50 Hz, with extended terminal & spreader link Make : Legrand / L & T/ Siemens/ ABB/ Schneider

Supply and replacement of MCCB 4 Pole, 16 KA, 63 Amp, adjustable type,specification ,440V, 50 Hz, with extended terminal & spreader link Make : Legrand / L & T/ Siemens/ ABB/ Schneider

Supply and replacement of MCCB 4 Pole, 16 KA, 40 Amp, adjustable type,specification ,440V, 50 Hz, with extended terminal & spreader link Make : Legrand / L & T/ Siemens/ ABB/ Schneider

Material & Labour for Servicing and cleaning of cooling towers of central type A/ C location at Sonabuoy complex including taking down and cleaning of fils with water and refixing in original position and one coat of painting like as old colour and testing for proper functioning all as specified and as directed. Note :- (i) Servicing of cooling tower to be carried out twice in the entire contract period and Each job will be measured and paid separately. (ii) Spares required for replacement if any shall be measured and paid separately under relevant items as supply and fixing.

All as per item No 85 above but for location at MK 54 complete all as specified and directed

All as per item No 85 above but for location at Magzine ' A' complete all as specified and directed

Supply and replacement of Fills for cooling tower suitable for Central AC Plant complete all as specified and directed. Make : Delta / Mihir / Blue Star

Supply and replacement of sprinkler assembly for cooling tower suitable for 110 TR capacity complete all as specified and directed. Make : Delta / Mihir / Blue Star

Supply and replacement of Drift eliminators assembly for cooling tower suitable for 110 TR capacity complete all as specified and directed. Make : Delta / Mihir / Blue Star

Supply and replacement of PVC mesh for cooling tower complete all as specified and directed.

Material & Labour for MS Pipe of any size cleaning with wire brush, apply one coat of metal primer and two coat of oil paint complete all as specified and directed.

Taking down the existing corroded MS pipe of size 40 mm dia for condenser water recirculating pipe line and M&L including welding in its original position new size of 40 mm MS pipe line medium grade including all specials/Joints, painting with 2 coats of synthetic enamel paint over red oxide as per zonal standard colour code and taking down old corroded pipe complete all as specified and directed. Make :JINDAL/TATA/PRAKASH

All as per item No 93 above but for 80mm dia complete all as specified and directed. Make :JINDAL/TATA/PRAKASH

All as per item No 93 above but for 100mm dia complete all as specified and directed. Make :JINDAL/TATA/PRAKASH

All as per item No 93 above but for 150mm dia complete all as specified and directed. Make :JINDAL/TATA/PRAKASH

M&L MS flange of size 40 mm dia including Bolts ,Nuts, gasket etc and taking down old corroded of size 40 mm dia complete all as specified and directed

All as per item No 97 but for 80mm dia complete all as specified and directed.

All as per item No 97 but for 100 mm dia complete all as specified and directed.

All as per item No 97 but for 150 mm dia complete all as specified and directed.

M&L including removing Taking down old GI channel for the supporting of cooilng tower base S&F including welding and fabrication of new GI channel with all related supporting structure, etc fabricated from structural steel sections including nuts, bolts, washers,welding, bending cold or hot,drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of paint including embeding in concrete and screwing etc all as specified and as directed.

RK ENTERPRISES (BID ID -3195255)

C SRINIVASAN (BID ID -3195887)