COMPREHENSIVE MAINTENANCE OF OF AC PLANT AT BGRP,WED AND NSD INCLUDING DG SET INSTALLATIONS AT PATANJALI , COLD AND COOL ROOM AND 6000 WAREHOUSE UNDER GE(SB) KARWAR

Amount

Material and labour for disconnecting condenser for descaling & Plugging them & providing of 15 mm tee out let for local circulation of mild acid solution in the condenser (separate container and small pump set to circulate diluted acid solution to be used) PH value of solution to be circulated & to be kept 4 and checking frequently i.e. every one hour during the operation Scalgun WS solution to be used for descaling purpose after 2 to 3 hours of cleaning if ph value remains less than 7 flush with fresh water mixed with sodium carbonate tubes and cleaning with nylon brush after closing the end covers, circulating diluted acid solution as specified above & PH value to be maintained as above & flushing the same with fresh water including recharging of stored refrigerant up to required pressure complete all as specified & directed by EIC of for 30 TR at WED/NSD

Pumping down the plant to preserve the existing refrigerant gas & leak testing chiller plant by charging of Nitrogen gas in to entire plant & monitoring for 24 hrs to find the leakages rectification of leak by brazing/ Capping leaked tubing & replacement of necessary gasket packing as wherever required including copper tubes of suitable size vacuumising of the plant by vacuum pump & keeping 24 hrs for testing including rectification of leakages if any finally recharging of existing refrigerant gas to the plant and topping up of refrigerant if required to maintain the standard pressure complete testing of the plant for smooth functioning complete.

(a) 30 TR chiller unit at WED/NSD

(b) 7.5 TR chiller unit at BGRP

Material and labour for taking out the centrifugal pump motor and transporting to work shop, split opening the motor removing the u/s burnt winding wire, cleaning the slots, re winding with super enameled copper conductor wire of suitable size including insulating materials, varnishing and drying and reassembling and transporting back to site , coupling with pump testing and commissioning all as directed for the following capacities of motors : -

Repairing /servicing and overhauling the centrifugal pump by dismantling the pump coupled with induction motor, opening the pump, inspecting for defects and replacing the worn out parts like gland bush, bearings, gland bolts and nuts, gland packing, gasket, water seal etc including repairs to pump shaft by remetalling, grinding, polishing and reassembling the same and replacing the rusted nuts, bolts, washers etc and coupling with motor testing complete for the following capacity of pumps complete all as specified and as directed.

(a) 5 hp at WED/NSD

(b) 3 hp at BGRP

Taking out old unserviceable scroll compressor 13 TR capacity from the unit after disconnecting electrical wiring and piping connections , nuts and bolts etc and Supply and fix new scroll compressor 13 TR capacity and connecting pipe line for existing piping brazing and electric connection etc complete all as specified and directed.

Taking out old unserviceable scroll compressor 7.5 TR capacity from the unit after disconnecting electrical wiring and piping connections , nuts and bolts etc and Supply and fix new scroll compressor 7.5 TR capacity and connecting pipe line for existing piping brazing and electric connection etc complete all as specified and directed.

Supply & charge refrigerant (R - 22) gas as per requirement

Topping up / Replacement of compressor oil with new compressor oil of

Supply and replacing the following defective / worn out spares / controls for the chiller Plant all as specified and as directed of make Kirloskar / voltas / Blue star

(a) Water Flow Switch complete all as directed .

(b) Moisture liquid indicators complete all as directed. Make: B/M or equivalent.

(c ) Single phase preventer for compressor /Motor for SM 101 GIC or eqv in L&T/Minilec/ABB

(d) Strip type 3 KW Heaters

(e) Strip type 2.0 KW Heaters

(f) Pressure gauge 0-300 PSI .

(g) Pressure gauge 0-150 PSI

(h) Filter drier core for 30/22 TR Central AC Plant

(j) LP/HP cut out switch for 30/22 TR Central AC Plant

(k) Float Valve for 25 mm

(l) Cooling tower fins of size 4'x6'

(m) Supply and replace the worn out 'V' belts of blower motor. (Make : Make : Eco drive / fenner / reenolds rubber)

(n) Mercury in glass industrial type thermometer

Material and labour for applying one coat of synthetic enamel paint as per colour code with spray machine on surfaces of 3x30 TR central AC plant comprising compressor motor, Pump, water pipe lines etc by filling cavities if any with filler including preparation of surfaces & indication markings all as specified and directed. WED/NSD

Material and labour for applying one coat of synthetic enamel paint as per colour code with spray machine on surfaces of 3x7.5 TR central AC plant comprising compressor motor, Pump, water pipe lines etc by filling cavities if any with filler including preparation of surfaces & indication markings all as specified and directed. BGRP

Taking down motor, blower fan assembly from cooling Tower, removing unserviceable fins , & providing new PVC fins of size 4"x6" ,after cleaning of Louvers, drift eliminators fill surface by moderate pressure water nozzle to remove all surface impurities including removal of rust/scale, scrapping down the hard water deposited from bottom tray with chemical and preparing the surfaces and painting with one coat of anticorrosive paint to match with existing colour, servicing of fan and motor assembly including removal of dust, oil, scale of motor body and replacing of unserviceable nozzle, bearings , painting with anti corrosive paint, draining and filling of bearing housing with new SAE 20 grade mineral oil, greasing of bearing with IOCL mobilux etc , & reassembling complete of following cooling towers

(a) FRP Cooling tower capacity 131 USGPM

(b) FRP Cooling tower capacity 30 USGPM

Note: (a)Defective parts of plants will be replaced and measured under respective item of this schedule. (b) Fins, float valve reqd for replacement will be measured under respective item of this schedule.

Supply and fix in repair Pressure sensor as per exiting complete all as specified and directed by engineer- in- charge

Supply and fix in repair Temperature sensor as per exiting complete all as specified and directed by engineer- in- charge

Supply erection testing and commissioning in repair 19 mm thick thermal insulation O closed cell elastomeric nitride rubber with aluminum foil laminated on onside, having thermal Temperature, of 20 c as per EN 12667, moisture diffusion resistance factor or u Value of minimum 7000 for base insulation material without the foil as per EN 12086, fire performance such that it passes Class 1 as per BS476 Part 7 for surface spread of flame and also fire performance of V0, HB as per UL 94, 1996, density without the foil between 40 to 55 KG/ Cum. the insulation material shall be FM ( factory Mutual) USA approved and dust & fiber free. the Aluminium foil shall be 60 microns thick and its weight shall be 193 gms as per EN ISO 2286-2, tensile strength 90 N/ 15 mm as per EN ISO 527-3 with elongation>10% as per EN ISO 527-3. All complete as specified in particular specification 19 mm thick thermal insulation as directed.

(a) Supply & Fix in repairs MS pipe heavy grade 80 mm dia including removing of unserviceable MS pipe medium grade of 80 mm dia all as specified & directed

(b) Supply & Fix in repairs MS pipe heavy grade 100 mm dia including removing of unserviceable MS pipe medium grade of 100 mm dia all as specified & directed

(c) Supply & Fix in repairs MS pipe heavy grade 50 mm dia including removing of unserviceable MS pipe medium grade of 50 mm dia all as specified & directed

(d) Supply & Fix in repairs MS pipe heavy grade125 mm dia including removing of unserviceable MS pipe medium grade of 125 mm dia all as specified & directed

(e) Supply & Fix in repairs MS pipe heavy grade 65 mm dia including removing of unserviceable MS pipe medium grade of 65 mm dia all as specified & directed

Supply & Fix in repairs butter fly valve 50 mm dia including removing of unserviceable butter fly valve of size 50 mm dia all as specified & directed.

Supply & Fix in repairs butter fly valve 80 mm dia including removing of unserviceable butter fly valve of size 80 mm dia all as specified & directed.

Supply and fix in repair and replacement NRV of dia 80 mm suitable for condensing /chiller water line with ISI marked including jointing with proper gasket ,nut, bolts washer all as specified.

Supply and fix in replacement NRV of dia 50 mm suitable for condensing /chiller water line with ISI marked including jointing with proper gasket ,nut, bolts washer all as specified.

Material and labour for disconnecting and removing ode unserviceable AHU drainage line of MS pipe, Supply and fix of new drainage line of 50/25 mm dia UPVC Pipe including all fittings and necessary clamping all as specified and directed by Engineer-in-charge.

Supply and fix in repair expansion valve for 22TR/30 TR AC plant as per existing make complete all as specified and directed.

Supply and fix in repair expansion valve for 7.5 TR AC plant as per existing make complete all as specified and directed.

Supply and fix in replacement of double fitted polymer fabric HDPE fresh air filter(Filter class-G3 as per EN 779) washable/cleanable type having efficiency 95% to 99% down to particle size of 10 micron, fabricated out of CRCA sheet metal duly painted with two coat of grey hammer tone spray painted over two coats of red oxide primer, with lifting handle, Box/flanged type, aluminium spacer etc, of make Thermadyne/ Pall supralon filter / Micron filter/Dyna Filter all as specified by Engr-in-charge of following sizes :-

(a) 600x600x50 mm

(b) 600x500x50 mm

(c)600x400x50 mm

(d)500x400x50 mm

Supply and fix in replacement of double fitted polymer fabric HDPE fresh air filter(GL-type) washable/cleanable type having efficiency 95% to 99% down to particle size of 5 micron, fabricated out of CRCA sheet metal duly painted with two coat of grey hammer tone spray painted over two coats of red oxide primer, with lifting handle, Box/flanged type, aluminium spacer etc, including taking down make Thermadyne/ Pall supralon filter / Micron filter/ Dyna Filter all as specified by Engr-in-charge of following sizes :-

(a)600x600x300 mm

(b)600x500x300 mm

(c)600x400x300 mm

(d)500x400x300 mm

Supply and fix in replacement of filter "HEPA"(EN-1882) with fibre glass paper filtering media capacities 1000 CFM efficiency 99.97% down to particle size of 0.3 to 0.5 micron aluminium frames box type of size 600x600x300mm including taking down of make Thermadyne/ Pall supralon filter / Micron filter all as specified.

Supply and fix in replacement of filter "HEPA"(EN-1882) with fibre glass paper filtering media capacities 1000 CFM efficiency 99.97% down to particle size of 0.3 to 0.5 micron aluminium frames box type of size 450x450x300mm including taking down of make Thermadyne/ Pall supralon filter / Micron filter all as specified.

Material and labour in repair duct insulations with resin bonded fiber glass wool density 24 Kg/Cum with laminated aluminium barriers thick 50 mm and including following :-

(a) Cleaning the duct surface.

(b) Applying rubber based adhesive CPRX compound.

(c) Ceiling all joints and circular cover laps including alumiunium foil taps 50 mm size 12/50 mm maximum intervals 1.2 Mtrs.

Removing side panel of AHU of any capacity, dismantling of AHU carefully removing unserviceable blower bearings and removing motor and blower assembly , replacement of AHU blower bearings after machining of shafts, cleaning bottom tray of AHU and refixing electric motor and top side panel in original position with new bolts washers and shafts keys and bottom of tray and checking the shafts balancing and testing for smooth running all as specified and directed.

Supply and fix in repairs monoblock pump set of capacity 5HP,C.I,M.S,SS , Head 6 to 22 Mtrs ,LPS 11 to 24 suitable for three phase 50 Cycle, 433V, AC Supply complete all as specified and directed by Engr-in-charge. Make Kirloskar Model No.KDI 335+ or equivalent in Crompton Greaves

Supply and fix in repairs monoblock pump set of capacity 3HP,C.I,M.S,SS , Head 12 to 36 Mtrs ,LPS 2 to 5 LPS suitable for three phase 50 Cycle, 433V, AC Supply complete all as specified and directed by Engr-in-charge. Make Kirloskar Model No.KDI 520+ or equivalent in Crompton Greaves

Supply and fix in repairs aluminium busbar of rated capacity 200A, covered with PVC insulated sleeves including insulator, nuts, bolts, etc. with complete connection complete all as specified and directed.

Supply and fix in repair LED phase indicators (Red, Yellow, Blue)

Supply and fix in repair Digital multi function meter with 63/5 CT capable of measuring V, A, F, PF, W/VA, WH, Vah, Runners, Others & interrupts-

Supplying, fixing, testing and commissioning in repair of Balancing Valve of 80 mm with built in measuring facility with C I body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation & PN 16 pressure rating for chilled water circulation, in the chilled/hot water plumbing duly insulated to the same specifications as the connected piping and adequately supported as per specifications complete all as specified and as directed.

Supply and fix in repair digital display thermo hygrometer measuring temp and RH to be installed in conditioned space, complete all as specified and as directed.

Supplying, fixing, testing and commissioning in repair of Y - Strainer of Ductile CI Body flanged ends with stainless steel strainer for chilled water circulation of size 80 mm, in the chilled/hot water plumbing duly insulated to the same specifications as the connected piping and adequately supported as per specifications complete all as specified and as directed.

Supply and fix in repair in position the following Ball Valves 25 mm dia for makeup line as per specifications complete all as specified and as directed

Supplying, installing, testing and commissioning of Fresh Air powder coated Anodized extruded aluminium construction fresh air louvers (50 mm deep) (Fresh air louver with VCD , bird screen & rattle-free) complete as per specification complete all as specified and as directed

Supplying ,laying , fixing & testing of following sizes of XLPE insulated, armoured heavy duty electric cable with aluminium conductor,1100 volts grade complete as required and as directed

(a) 4C- 10 sq mm

(a)4C- 6 sq mm

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 240 sq mm 3.5 core

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 95 sq mm 3.5 core

Supply and fix in repair amp rating 240V, 10KA 'C' curve miniature circuit breaker (MCB) SP of 6 to 32 Amps current rating complete with connection testing and commissioning.

Material and labour for Carrying out "B" check- Replacement of diesel filter assembly, bypass filter assembly complete with engine oil filters, Pre air filters, Micro Air filter including necessary "O" rings, etc. Draining out unserviceable engine oil from sump, filling of new oil and checking the proper functioning of the lubrication and cooling system for the DG set 320 KVA of make Greaves Model No 7 BD 2 V 12 MK II HP -396 a) The unit quoted shall be deemed to inclusive the cost of Diesel filter assembly, by pass filter assembly, engine oil filter assembly, Air filter assembly, 'O' ring etc. b) 'B' Check of DG set to be carried out twice in a year i.e. every six months 2 DG set X 2 times = 04 c) Engine Oil & coolant addictive shall be measured and paid separately as supply only under the relevant items of schedule.

Supply and fix in repair and replacement battery terminal (copper) including brazing with multistranded copper conductor

Supply and fix in repair and replacement ESU (AMF Controller / Engine safety Unit) of DG Set 320 KVA Make : Greaves

Supply and fix in repair and replacement of maintenance free battery of capacity 12V 180AH for 320 KVA DG Set of Greaves complete with initial charging

Supply and fix in repair and replacement of Exhaust blower for 320 KVA DG Set Make : Greaves

Supply and fix in repair and replacement AVR Model AS 440 of alternator 3 phase 415 Volts of 320 KVA Make Stamford Alternator complete testing and all as per directed by engineer- in - charge.

Supply only of Water hose pipe as per existing for Set for 320 KVA DG Set Make :Greaves

Supply only of hose clips as suitable for 320 KVA DG Set Make : Greaves

Supply only of speed controller as suitable for 320 KVA DG Set Make : Greaves

Supply only of water safety switch as suitable for 320 KVA DG Set Make : Greaves

Supply only of Oil safety switch as suitable for 320 KVA DG Set Make : Greaves

Supply only of relay card as suitable for 320 KVA DG Set Make :Greaves

Supply only of fan belt as suitable for 320 KVA DG Set Make : Greaves

Supply only of Diesel pipe as suitable for 320 KVA DG Set Make : Greaves

Supply only of Engine oil suitable for above DG Set as per recommended by manufacturer.

Supply only coolant Additive 5 Lt Pack,

Supply and fixing in repairs of Rectifier service Kit of alternator 3 phase 415 Volts of 320 KVA make Stamford Alternator complete testing all as directed.

Material and labour for isolating earthing lead conductor from test point and measuring resistance value of earth pit complete all as specified and directed.

Material and labour for repair/overhauling of self starter 24 Volts including replacement of carbon, bushes, rewinding of armature and field etc. and varnishing 320 KVA DG Set Make- Greaves

Material & labour for taking down the fuel injection pump of 320 KVA of DG set for service & calibration and checking the serviceability of FIP complete and refixing the same to original position etc complete all as specified and directed. Make : Greaves

Supply and fix Fuel filter cartridge 6.0541.18. 08.008 set with packing ring complete all as specified .

Opening the LT Panel board cubical type for DG set located in DG room, cleaning the Bus Duct chamber, inspect the complete panel, tighten the all incoming, outgoing ACBs/MCCB s/ SFU of different capacity, nuts, bolts, bus bar insulator and replace with new one if required and heating up for removal of moisture, record its IR value with the help of 1.1KV megger and applying thick coating of Z931 stripped B and Z 955 Strippex (SL) of stanvac product for preventing from flush over and fire hazard, including replacement of 3mm thick gasket, closing of all holes and charging the same complete all as directed.

All as per item No 20 hereinbefore but for main electric panel

All as per item No 20 hereinbefore but for DG auxiliary panel.

Material and labour for scrapping old paint and rust, cleaning and preparation of surface of DG set, DG set enclosures, diesel tank, rolling shutter of DG set, DG panel board and painting with synthetic enamel paint to match with existing colour and painting the exhaust pipe with aluminium paint complete all as specified and directed.

Dismantling the leaking radiator from 320 KVA DG set and transporting to the workshop for repair by means of gas welding / brazing the copper tubes and reassembling the same at the workshop and back to the site and refxing in the engine and testing complete and all as directed Make : Greave

Taking out the radiator from the engine up radiator fins descaling core for elimination of residual etc com[plate all as specified and directed.

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 185 sq mm 3.5 core

Excavation in trenches, not exc 1.5 mtr wide and not exc 1.5 mtr in depth for laying of pipe line in soft / loose soil and getting out in soft / loose soil complete all as specified.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exceeding 25cm in soft/loose soil all as specified & directed

Removing excavated material to a distance n.exc 50m and depositing where directed at a level not exceeding 1.5m above the starting point all as specified & directed by Engineer-in-Charge

Material and labour for natural dry river sand cushioning including spreading, leveling and hand punning to underground cable in trench all as specified and directed. Note : Punned thickness shall only be measured and paid.

Material and labour for brick protection with PCC cable cover class LV, type-I, flat size 250mmx150mmx40mm factory casted ISI marked all as specified and directed.

Supply and lay GI tubing, 'light grade' of size 80 mm ,with all fittings as in cable protection, laid in trenches all as specified and directed by Engineer-in-charge.

Material and labour for rectification of defects and making functional cold room, cool room of any capacity including rectification of minor defect such as tripping of MCBs, replacement of MCBs labour only wherever necessary, rectifying loose electrical connections, making fresh connections in electric panel / connector etc, making functional of defective drain pipe blockage/leakage etc, checking of functionality of compressor of any capacity etc complete all as specified and directed. Note :- (i) Unit rate quoted shall include for maintaining proper record and obtain the signature of concerned user unit. (ii) Unit rate quoted shall include for sundry items / materials as required.

(a)Cool room with capacity 4 ton reciprocating compressor

(b) Cold room with capacity 9 ton reciprocating compressor

Supply only R-134 A refrigerant gas in sealed container.

Supply only R-404(a) refrigerant gas in sealed container.

Labour only for gas charging with required quantity with R-134 a and R- 404 refrigerant gas including all allied works such as vaccumising the complete system, soap leak test, nitrogen gas pressure test, replacement of copper filters, capillary, copper tubing of suitable size and required length, flux, flare nut, dead plug, dead cap, brazing etc including necessary welding work, testing and commissioning up to satisfactory performance for the following :- Note :- Qty of gas will be measured and paid separately.

Refrigeration circuit of cool room of capacity 4 Ton.

Refrigeration circuit of cold room of capacity 9 Ton.

Supply and fix in repair as per existing new fan / blower motor, single end shaft, single phase, 240 volts, 2 HP metallic body including fan blade assembly suitable for 9 TR and 4 TR make Alstom/Marthom for outdoor unit of floor mounted AC complete all as specified and directed.

Supply and fix in repair single phase preventer cum controller for operation of floor mounted AC of 4 and 9 Ton capacity.

Supply and fix in repair HP/LP cut out for floor mounted AC of 4 and 9 Ton capacity complete all as specified and directed.

Supply and fix in repairs expansion valves thermostatical type for cold storage of capacity 9 ton compressor complete all as specified and directed.

Supply and fix in repairs expansion valves thermostatical type for cold storage of capacity 4 ton compressor complete all as specified and directed.

Supply and fix in repairs filter drier model DG -304 suitable for refrigerant 404 (a) for cold storage of capacity 9 ton compressor complete all as specified and directed.

Supply and fix in repairs filter drier for cool room suitable for refrigerant 134 (a) of capacity 4 ton compressor complete all as specified and directed.

Supply and fix 3 phase Contactor Make : ABB Model No ( A-16-A-30-10-240Volt) suitable for 9TR compressor of Cold room complete all as specified and directed.

Supply and fix 3 phase Contactor Make : ABB Model No ( A-9-30-10-240 Volt ) suitable for 9TR compressor of Cold room complete all as specified and directed.

Supply and fix 3 phase Contactor Make : ABB Model No ( B-25-30-10-240 Volt ) Volt suitable for 9TR compressor of Cold room complete all as specified and directed.

Supply and fix in repair 8 Pin Pla relay suitable for 4TR and 9 TR compressor of Cold room & Cool room complete all as specified and directed.

Supply and fix in repair 3 phase Contactor Make : ABB Model No ( B-9-30-10-240V) suitable for 4TR compressor of Cool room complete all as specified and directed.

Supply and fix in repair 3 phase Contactor Make : ABB Model No ( MNX-18-240) suitable for 4TR compressor of Cool room complete all as specified and directed.

Supply and fix in repairs sub zero suitable for 4 TR and 9TR compressor complete all as specified and directed.

Supply and fix in repairs overload relay for capacity 9 ton and 4 Ton compressor complete all as specified and directed.

Supply and fix in repair and replacement of Reciprocating Compressor of capacity 4TR for MODEL No NTZ271A4LR1B & S.No NK1008928426 all as specified and directed by Engineer-in Charge.

Supply and fix in repairs cassette AC indoor PCB for 1.5 TR complete all as specified and directed.

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