REPAIR MAINT OF SCREW CHILLER 2 X 120 TR CAPACITY, 1 X 240 TR COOLING TOWER AT NAY AND CERTAIN AC PLANT MAINT OF NAVAL BASE KOCHI AND REPAIR ROUTINE MAINTENANCE OF COLD STORAGE UNITS AT NEW BV YARD, OLD BV YARD AND SANJIVANI NAVAL BASE KOCHI AGEIII

Amount

Dismantling of unserviceable SS PUF insulation of size approx 30 Sqm and levelling the entire room of size approx 30 Sqm room surfaces by using proper tools and levelling the room surfaces by using proper tools and plants for cold storage room ceiling and supply and fixing of PUF insulation for thickness upto 150mm having SS 304 grade panel cover with thickness 0.4/0.5mm, density 40Kg/Cum by OEM complete all as specified and as directed. Note: Work sholud be carried out by OEM/authorised agency as per standard procedures. Charges for the same shall be deemed to be included in quoted rate.

Material & labour for servicing of cooling tower of capacity 240 TR capacity AC plant including removing of top metal grill cover and cleaning the PVC fills, alignment in proper way, replacement of rusted nuts, bolts with washers etc and clearing bottom tank to remove mud and dust complete all as specified and as directed by Engineer-in-charge.

Supply and fixing in replacement of PVC fills size not less than 600x200x150mm for cooling tower complete all as specified and as directed.

Supply and fixing in replacement of machine made powder coated supply/ return air square diffusers of aluminium construction for supply air inlet and outlet complete all as specified and as directed

Material & labour for servicing of existing chiller/ condenser pump of capacity 20HP after disconnecting electric connection from foundation, removing defective bearing, re-metalling the bearing housing shaft, replacing with new bearings, gland bush, gaskets, gland packing, nut and bolt, air release valve, cooling fan cover and reassemble, refitting and recommissioning including refixing of all electrical connections, testing, painting, base foundation work along with channels/ accessories, including transportation to local workshop and back after repair, testing complete all as specified and as directed by Engineer-in-charge.

Material & labour for dismantling of defective condenser pump/ chiller pumps of capacity 20 HP after disconnectiong electric connection from foundation, gland bush, heating, insulating and replacement of same gauge for existing motor copper winding, gland bush, gaskets, gland packing, nut and bolt, assembling, refitting and recommissioning including refixing of all electrical connections, testing after repair complete all as specified and as directed by Engineer-in-charge.

Material and labour for leak testing of central AC plant of capacity upto 120TR including flushing out old moisturised gas and oil and pressuring with nitrogen gas and kept for 24 hrs as per OEM specifications, vaccumising nitrogen and refilling of refrigent gas complete all as specified and as directed. Note :- 1. Nitrogen and refrigent gas will be measured and paid seperately 2. Empty cylinder will returned to contractor after usage

Supply and charging of refrigerant gas R-22 in sealed cylinder complete all as specified and as directed by Engineer-in-Charge.

Supply and charging of refrigerant gas R 410A in sealed cylinder complete all as specified and as directed by Engineer-in-Charge.

Supply and charging of refrigerant gas R 407C in sealed cylinder complete all as specified and as directed by Engineer-in-Charge.

Supply and charging of refrigerant gas R 134A in sealed cylinder complete all as specified and as directed by Engineer-in-Charge.

Supply and charging of Nitrogen gas in sealed cylinder complete all as specified and as directed by Engineer-in-Charge. Note for item no 8 to 12: 1. Empty cylinder will returned to contractor after usage 2. Testing pressure gauges, gas charging PVC leads and accessories,technicians and transporting facility to carring to various AC Plants shall be own arranged by contractor .

Supply and charging, testing of compressor oil superior quality in sealed barrel complete all as specified and as directed by Engineer-in-Charge.

Supply and fix in repair pre filter box type of efficiency not less than 90% for particles of size down to 20 micron in GI casing of thickness 45/ 50mm including necessary repairs to AHU filter frames to arrest the air leakage of the following size/ as per existing at site complete all as specified and as directed by Engineer-in-Charge:

610mm x 610mm

480mm x 455mm

540mm x 425mm

455mm x 450mm

500mm x 500mm

600mm x 600mm

600mm x 500mm

555mm x 535mm

555mm x 460mm

600mm x 300mm

530mm x 420mm

620mm x 500mm

590mm x 520mm

560mm x 480mm

560mm x 560mm

610mm x 305mm

Supply and fix in replacement of digital Voltmeter 3 phase complete all as specified and as directed.

Supply and fix in replacement of digital Ammeter 1/5A, 3 phase complete all as specified and as directed.

Supply and fixing in replacement of temperature gauges for existing pipe lines of central AC plants of suitable size and model complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in replacement of analog pressure gauge for existing pipe lines and plants of suitable dia and model including MS bend pipe upto gauge as required at site complete all as specified and as directed by Engineer-in-Charge.

Material and labour for fabricating structural steel sections including nuts, cable trays, clamps, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and applying 2 coats of synthetic enamel paint over a coat of red oxide primer including preperation of surfaces complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in replacement of hard PVC piping 40mm up to drain disposal area with suitable size nitrile rubber insulation suitable for chilled water drain pipe complete all as specified and as directed.

Taking down AHU puff panel, cooling coil, filters, cooling coil pan and necessary repair to panels to arrest air leak, packing, refixing/ replacing of door hinges, handles, gasket includng repairs to cooling coil pan to arrest leak complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in replacement of 25mm dia ball valves, high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe and fixed having minimum weight 25mm - 455 gms complete all as specified and as directed by Engineer-in-Charge.

Material and labour for servicing of existing AHU motor of capacity upto 15HP including fan after disconnecting electric connection from motor terminal and opening the motor cover, re-metalling the bearing housing shaft, replacing with new bearings of existing size, cleaning, re-assembling including transportation from existing location to workshop and back, refixing of electrical connections, testing after repair, refixing of blower belt, alignment with blower with motor structural frame work and complete painting, recommissioning complete all as specified and as directed by Engineer-in-charge.

Material and labour for taking down AHU blower from the site, replacement of bearings and bearing supports, cleaning the surface and aligning the blades for smooth functioning and refixing after repair, refixing of belt, alignment with motor, recommissioning complete all as specified and as directed by Engineer-in-charge.

Material and labour for leak testing of existing cooling coil of capcaity upto 150 TR, arresting the leaks of cooling coil by forced pressuring water, brazing works, aligning fins complete all as specified and as directed by Engineer-in-charge.

Supply and fix electric shock proof floor mat near electric panel in AC plant of suitable size 2m x 1m of minimum thickness 10mm complete all as specified and as directed by Engr-in-Charge

Taking down any type of false ceiling for AC duct repair work and refix after repair/ arresting of water leaking including all required accessories and make it good complete all as specified and as directed by Engr-in-Charge Note: (i) Any damages made to false ceiling during execution of the above, the same may be repaired/replaced by the contractor without any additional cost. (ii) Cost of additional materials required for making it good as per existing surface shall be deemed to be included in the quoted rate.

Repair to thermal insulation of duct with skilled labour and necessary equipments complete all as specified and as directed by Engr-in-Charge. Note: (i) The cost for replacement fo nitrile rubber upto 1 sqm shall be deemed to be included in the quoted rate. (ii) Any addl nitrile rubber required beyond 1 sqm for the repair work shall be measured and paid separately. (iii) The quoted rate shall be deemed to be included for necessary T & P and labour.

Supply & fixing of replacement of 13 mm thick thermal insulation of exposed area of ducting, covering on ducts using Class 'O' Nitrile Rubber outer side of exisitng pipe lines using manufacturer's recommended rubber based adhesive in a blend of solvents complete as per manufacturers instruction and as directed by Engr-in-Charge.

Supply, laying of GI pipes of 65mm dia, medium grade with all necessary fittings and fixtures laid in trenches/floors or fixed to walls and ceilings etc including welding, connecting and painting two coats of synthetic enamel paint including taking down old unserviceable pipe of any size and type complete all as specified and as directed by Engr-in-Charge.

All as per item No 30 here-in-before, but of size 80mm dia

All as per item No 30 here-in-before, but of size 100mm dia

All as per item No 30 here-in-before, but of size 125mm dia

Supply and fixing in replacement of CI 'Y' strainer of size 65mm dia in condensing/ chilled water line complete including modification of pipe line for fixing the strainer, replacement of flanges and nuts, bolts, packing etc complete all as specified and as directed by Engr-in-Charge.

All as per item No 34 here-in-before, but of size 80mm dia

All as per item No 34 here-in-before, but of size 100mm dia

All as per item No 34 here-in-before, but of size 125mm dia

Supply and fixing in replacement of CI butterfly valve of size 65 mm full open with operating handle dia including replacement of old nuts & bolts, packings modification of flanges if necessery complete all as specified and as directed by Engr-in-Charge.

All as per item No 38 here-in-before, but of size 80mm dia

All as per item No 38 here-in-before, but of size 100mm dia

All as per item No 38 here-in-before, but of size 125mm dia

Preventive maintenance of monthly servicing and check up of Bitzer make, new BV yard blast cold storage 25 HP of 1 units including 1 ODU+ 1 IDU (-)30 °C operation wih R- 404A refrigerant gas two stage, semi hermatically sealed compressor controlled with electronically operated solenoid valve for liquid system complete all as specified and as directed.

All as per item No 42 here-in-before, but new BV yard meat room of cold storage (-)18°C with capacity 6HP having 01 units including 1 ODU +1 IDU

All as per item No 42 here-in-before, but new BV yard fish room of cold storage (-)18°C with capacity 4HP having 01 units including 1 ODU +1 IDU

All as per item No 42 here-in-before, but new BV yard vegetable room of cold storage (+) 4°C capacity 6HP having 01 units including 1 ODU +1 IDU

All as per item No 42 here-in-before, but new BV yard egg room of cold storage (+) 4°C capacity 4HP having 01 units including 1 ODU +1 IDU

All as per item No 42 here-in-before, but new BV yard Ante room of cold storage (+) 4°C capacity 6HP having 01 units including 1 ODU +1 IDU

All as per item No 42 here-in-before, but new BV yard milk room of cold storage (+) 4°C capacity 2HP having 01 units including 1 ODU +1 IDU.

Preventive maintenance of monthly and check up of old BV yard Bitzer Blast cold storage 48000 BTU of 1 unit including 1 ODU +1 IDU (-)30°C operation wih R-404A Refrigerant gas two stage, semi hermatically sealed compressor consisting 4 cylinder, controlled with electronically operated solenoid valve for liquid system, complete all as specified and as directed.

Preventive maintenance monthly and check up of old BV yard Danfoss cold room plant (-)18°C with (50000 BTU) of 1 unit including 1 ODU + 1 IDU, R- 404 A Regrigerant, compressor hermatically sealed, equipped with electronically controlled solenoid valve system which have individual accumulated to varify and control the liquid gas flow including micro processor controlled electrical panel indoor blower unit controlled with fans and other electrical circuites with electronically operated solenoid valve for liquid system complete all as specified and as directed

All as per item No 50 here-in-before, but old BV yard Vegetable room of cold storage (+) 4°C capacity 30000BTU having 01 units including 1 ODU +1 IDU

All as per item No 50 here-in-before, but old BV yard Egg room of cold storage (+) 4°C capacity 20000BTU having 01 units including 1 ODU +1 IDU

Preventive maintenance monthly and check up of Blue star cold room at Sanjivani hospital temp to be stabled +4°C with capacity upto 12000 BTU of 1 units including 1 IDU+1 ODU, R-22 refrigerent inculding in door blower unit equipped with electrically operated micro processor control panel including blower fans and other other electrical circuits of the system to be checked complete all as specified and as directed by Engr-in-Charge.

Preventive maintenance monthly and check up of Bluestar cold room at Sanjivani Hospital plant (-)18 °C with (10000 BTU) of 1 unit including 1 IDU + 1 ODU, R-404 A Regrigerant. The compressor hermatically sealed. Equipped with electronically controlled solinoid valve system. The system have individual accumulated to varify and controll the liquid gas flow including micro processor controlled electrical panel indoor blower unit controlled with fans and other electrical circuits of the entire system to be checked complete all as specified and as directed by Engr-in-charge.

Preventive maintenance monthly and check up of Blue star walk in cooler at Sanjivani hospital temp to be stabled +4°C with capacity upto 36000 BTU of 1 units including 1 IDU+1 ODU, R-22 Refrigerent inculding in door blower unit equipped with electrically operated micro processor control panel including blower fans and other other electrical circuits of the system to be checked complete all as specified and as directed by Engr-in-charge.

Note for item No. 42 to 55: (a) Service of cold storage comprises the cleaning to the outdoor unit and indoor unit of Cold storage system, units by using pressure water, clean with mild air blower in the cooling coil side and including repairing, gas refilling etc. (b) All Major spares shall be measured and paid under relevant items here-in-after. (c) Each servicing/ checkup of cold storages by OEM or authorised dealers shall be carried out once in a month. (d) The job above quoted shall be included for all labour cost, except electrical control panels with parts

Material and labour for servicing/ replacement of defective spares in existing electrical control panels to operation for compressor, evaporator, man trap alarm repairing, defrosting, tray heaters, drain heaters, temprature sensors etc in cold storages, including decarbonizing, lightning of control cable terminations, cable glands, and end termination, replacement of defective contactors (suitable fitting in exisiting panel), push switches, MCBs or any other defective spares crimping by attending with skilled electricians, with neccessary T & P for checking and make functional in all the respect of the cold storage complete all as specified and as directed by Engr-in-charge. Note: (i) Rate quoted shall be included minor spares valu upto Rs.250/- and the electrical spares value more than Rs. 250/- shall be measured and paid separately.

Supply and fix in replacement of digital temprature gauge of sub zero model SZ7504 of working temperature range -50°C to +99°C complete all as specified and as directed.

Supply only Catchalll (filter drier) -sub cooling complete all as specified and as directed.

Supply only liquid line drier (Model 604) complete all as specified and as directed.

Supply only HP/LP Switch complete all as specified and as directed.

Supply only Oil Pressure Switch complete all as specified and as directed.

Supply only Solenoid Valve complete all as specified and as directed.

Supply only Expansion Valve suitable for -18°C complete all as specified and as directed.

Supply only Expansion Valve suitable for +4°C complete all as specified and as directed.

Supply only condensor fan motor capacity of 0.5 HP - 0.75 HP along with leaf suitable for existing bracket of outdoor unit of make Bitzer suitable for +4°C cold storages complete all as specified and as directed.

Supply only condensor fan motor capacity of 0.5 HP - 0.75 HP along with leaf suitable bracket of outdoor unit of make Bitzer suitable for -18°C to -30°C cold storages complete all as specified and as directed.

Supply only evaporator fan motor capacity of 0.5 HP - 0.75 HP along with leaf suitable for existing bracket of Indoor unit of make Guntner suitable for +4°C cold storage complete all as specified and as directed.

Supply only evaporator fan motor capacity of 0.5 HP - 0.75 HP along with leaf suitable for existing bracket of Indoor unit of make Guntner suitable for -18°C to -30°C cold storages complete all as specified and as directed.

Supply only drain heater complete suitable for +4°C cold storage complete all as specified and as directed

Supply only drain heater complete suitable for -18°C cold storage complete all as specified and as directed

Supply only door heater suitable for +4°C & -18°C cold storage complete all as specified and as directed

Supply only door heater suitable for +4°C & -18°C cold storage complete all as specified and as directed

Supply only tray heater suitable for +4°C complete all as specified and as directed

Supply only tray heater suitable for -18°C complete all as specified and as directed

Supply only cold room defrost heater working on 230 V complete all as specified and as directed

Supply only door handle suitable for temprature range -18°C to -30°C cold rooms complete all as specified and as directed

Supply only door handle suitable for temprature range +4°C cold rooms complete all as specified and as directed

Supply and charging refrigerant gas R 404A in sealed cylinder including leak testing by using nitrogen gas complete all as specified and as directed by Engineer in Charge. Note : 1. Nitrogen gas shall be measured and paid seperately 2. Empty cylinder will returned to contractor after usage

Supply and charging Refrigerant Gas R134 in sealed cylinder including leak testing by using nitrogen gas all as specified and as directed by Engineer in Charge. Note :- 1. Nitrogen gas shall be measured and paid seperately 2. Empty cylinder will returned to contractor after usage

Supply only Nitrogen gas contains 12 PSI of pressure in each cylinder of 6 cubic metre.

Supply and fix in replacement of compressor oil suitable for refrigerent gas R-134 and R-404A operated compressors complete all as specified and as directed.

Material and labour for dismantling of compressor of Bitzer make operating 3 phase 415 V, cold storage capacity with 25HP transport to local work shop and taking out of bearing and re-metaling the bearing housing, including rewinding with same gauge super enamelled copper insulated wire grinding, turning to the required size, cleaning of stator, varnishing, drying, re-assembling the compressor to bring in original state including fixing on the existing condensing unit, testing complete all as specified and as directed by Engr-in charge.

All as per item No 83 here-in-before, but capacity of cold strorage 2 HP - 5 HP

Supply and fix in replacement of MCB, TPN, 06- 32 Amp, 'C' curve, 10 KA including complete all as specified and as directed.

Supply and fix in replacement of single phasing preventer suitable for 380V-415V, AC complete all as specified and as directed.

Supply and fix in replacement of thermal overload relay for MNX contractors capacity up to 42A, delay range 6 to 42 Amps complete all as specified and as directed

Supply and fix in replacement of power contactor upto MNX-32, 32Amps TP 415V of coil voltage 220V with auxillary contact 1 NO+1NC complete all as specified and as directed

Supply and fix in replacement of premium quality rubber door gasket for exisiting Metaflex door sizes 2000 mm (L) x1200 mm (B), thickness range of door 60mm to 150mm, including all connected items for cold rooms complete all as specified and as directed

Material and labour for repair and servicing of 40mm thick sectional over head door, working with rails and brackets for free longitudinal movement including necessery replacement of suitable gauge SWR, control cables, any other defective accessories, including greasing for the door movement with motorised with push button and functional in all respect complete all as specified and as directed by Engr-in-Charge Note:- The servicing should be carried out by OEM/authorised agency.

Supply and fix in replacement of digital microprosser based control display unit for working range -18°C to -30°C cold storages with software programmed by OEM to functioning of all controls and suitable for fixing inside the existing panels including necessary control wires, sockets etc complete all as specified and as directed by Engr-in-Charge

All as per item No. 91 here-in-before, but working Range +4°C cold rooms.

Supply and fixing in replacement of weather proof LED tube lights, 230Volt, along with copper cable as required for connecting existing points at inside cold rooms complete all as specified and as directed by Engr-in-Charge

Material and labour for leak testing of blast & meat cold storage units of working range -18 °C to -30 °C including filling of nitrogen gas for pressure testing required as per OEM specification for minimum 8 hours time frame, finding leaks, vaccumising the system, necessary brazing work, charging with refrigerant gas R404A of required quantity, testing for proper functioning complete all as specified and as directed by Engr-in-Charge. Note:- Nitrogen and refrigerant gas shall be measured and paid separately.

Material and labour for leak testing of cold storage units of +4°C including filling of nitrogen gas for pressure testing required as per OEM specification for minimum 8 hours time frame, finding leaks, vaccumising the system, necessary brazing work, charging with refrigerant gas R134 of required quantity, testing for proper functioning complete all as specified and as directed by Engr-in-Charge. Note:- Nitrogen and refrigerant gas shall be measured and paid separately.

Supply and fix 'O' nitrile rubber insulation for copper pipe suitable for +4°C, -18°C to -30°C of liquid and gaseous lines including removing old perished insulations complete all as specified and as directed.

Supply and fix in replacement of suitable valve for suction line of -18°C to -30°C complete all as specified and as directed.

Supply and fix in replacement of suitable valve for suction line of +4°C complete all as specified and as directed.

Supply and fix in replacement of suitable valve for discharge line of -18 °C to -30 °C complete all as specified and as directed.

Supply and fix in replacement of suitable valve for discharge line of +4°C complete all as specified and as directed.

Material and labour for repair/replacement of copper refrigerent pipe lines suitable for existing units as recommended by OEM with insulation between indoor and out door units complete all as specified and as directed. Note: Suction & discharge lines shall be treated as one unit for one RM

Supply and fix in suitable vibrator absorber for blast unit complete all as specified and as directed.

AISWARYA ENTERPRISES (BID ID -3160666)