CERTAIN REPAIR TO AIR CONDITIONING AND REFRIGERATION SYSTEM AT AFS TEZPUR UNDER GE (AF) TEZPUR.

Amount

Preventive and comprehensive maintenance as per Original Equipment Manufacturer's (OEMs) reccommendations of floor mounted Package type air cooled AC plant of capacity 3x5.5 TR, by cleaning of airfilters, condensor cleaning with coil cleaner, cleaning of all dampers for optimum cooling in every room, duct inspection and cleaning from inside, checking and rectification of control wiring,greasing of blower motor, checking of all safety measures, topping of required refrigerant gas and compressor oil it retained as required, balancing of blower etc and including repair/replacement of unserviceable spare parts as and when required i.e compressor of the package unit, micro processor control unit, indoor blower motor, outdoor fan motor, fan motor blade, condensor coils, airfilters, dampers, liquid line gas filter, charging valve, contractors, blower motor bearing, required size V-belts, leak test by nitrogen gas and charging the refrigerant as required at site, including test run for 24 hrs to achieve satisfactory service and designed condition test results,in presence of Engineer-in-Charge, complete all as specified and directed. [Package type air cooled AC plant of capacity 3x5.5 TR,Model – DPA1052R2 (Make:Bluestar) installed in Transmitter Building].

Preventive and comprehensive maintenance as per Original Equipment Manufacturer's (OEMs) reccommendations of floor mounted Package type air cooled AC plant of capacity 2x8.75 TR by cleaning of airfilters,condensor cleaning with coil cleaner,cleaning of all dampers for optimum cooling in every room, duct inspection and cleaning from inside, checking and rectification of control wiring, greasing of blower motor,checking of all safety measures, topping of required refrigerant gas and compressor oil it retained as required, balancing of blower etc and including repair/replacement of unserviceable spare parts as and when required i.e compressor of the package unit, micro processor control unit, indoor blower motor, outdoor fan motor, fan motor blade, condensor coils, airfilters, dampers, liquid line gas filter, charging valve, contractors, blower motor bearing, required size V-belts, leak test by nitrogen gas and charging the refrigerant as required at site, including test run for 24 hrs to achieve satisfactory service and designed condition test results, in presence of Engineer-in-Charge complete all as specified and directed. [Package type air cooled AC plant of capacity 2x8.75 TR,Model – DPA661R2 (Make:Bluestar) installed in Parachute Building].

Preventive and comprehensive maintenance as per Original Equipment Manufacturer's (OEMs) reccommendations of floor mounted Package type air cooled AC plant of capacity 6x16.5 TR by cleaning of airfilters, condensor cleaning with coil cleaner, cleaning of all dampers for optimum cooling in every room, duct inspection and cleaning from inside, checking and rectification of control wiring, greasing of blower motor, checking of all safety measures,topping of required refrigerant gas and compressor oil it retained as required, balancing of blower etc and including repair/replacement of unserviceable spare parts as and when required i.e compressor of the package unit, micro processor control unit, indoor blower motor, outdoor fan motor, fan motor blade, condensor coils, airfilters, dampers, liquid line gas filter, charging valve, contractors, blower motor bearing, required size V-belts, leak test by nitrogen gas and charging the refrigerant as required at site including test run for 24 hrs to achieve satisfactory service and designed condition test results in presence of Engineer-in-Charge, complete all as specified and directed. [Package type air cooled AC plant of capacity 6x16.5 TR Model – DPA1983R2 (Make:Bluestar) installed in MPR Building ].

Preventive and comprehensive maintenance as per Original Equipment Manufacturer's (OEMs) reccommendations of floor mounted Package type air cooled AC plant of capacity 3x11 TR by cleaning of airfilters, condensor cleaning with coil cleaner, cleaning of all dampers for optimum cooling in every room, duct inspection and cleaning from inside, checking and rectification of control wiring, greasing of blower motor,checking of all safety measures, topping of required refrigerant gas and compressor oil it retained as required, balancing of blower etc and including repair/replacement of unserviceable spare parts as and when required i.e compressor of the package unit, micro processor control unit, indoor blower motor, outdoor fan motor, fan motor blade, condensor coils, airfilters, dampers, liquid line gas filter, charging valve, contractors, blower motor bearing, required size V-belts, leak test by nitrogen gas and charging the refrigerant as required at site including test run for 24 hrs to achieve satisfactory service and designed condition test results in presence of Engineer-in-Charge complete all as specified and directed. [Package type air cooled AC plant of capacity 3x11 TR Model – DPA1322R2 (Make:Bluestar) installed in PTT Building (Stimulator)]

Preventive and comprehensive maintenance as per Original Equipment Manufacturer's (OEMs) reccommendations of floor mounted Package type air cooled AC plant of capacity 3x11 TR Model – DPA1322R2 by cleaning of airfilters, condensor cleaning with coil cleaner,cleaning of all dampers for optimum cooling in every room, duct inspection and cleaning from inside, checking and rectification of control wiring (cost of control wiring included), greasing of blower motor in quote rate, checking of all safety measures, topping of required refrigerant gas and compressor oil it retained as required, balancing of blower etc and including repair/replacement of unserviceable spare parts as and when required i.e compressor of the package unit, micro processor control unit, indoor blower motor, outdoor fan motor, fan motor blade, condensor coils, airfilters, dampers, liquid line gas filter, charging valve, contractors, blower motor bearing, required size V-belts, leak test by nitrogen gas and charging the refrigerant as required at site including test run for 24 hrs to achieve satisfactory service and designed condition test results in presence of Engineer-in-Charge complete all as specified and directed. [Package type air cooled AC plant of capacity 3x11 TR Model – DPA1322R2 (Make:Bluestar) installed in Base OPS Building].

Preventive and comprehensive maintenance as per Original Equipment Manufacturer's (OEMs) reccommendations of central AC chiller plant of capacity 2x52 TR, water cooled screw chiller type by checking the functioning of Chiller unit/Air Handling unit/ Pumps /Cooling tower/Controls and all such equipment covered installed, Descaling of condensers/ chemical cleaning of evaporator coils/replacement of pre filters based as per requirement, descaling of cooling tower and replenishing as required refrigerant gas and compressor oil in the system as per requirement respectively, servicing/replacing and descaling of chiller plant any type of spare parts of chiller unit as and when required related to compressors, thermostat, cut outs, micro processor unit control modules of the plant, control boards, pressure transducer, sensors, capacity transducer, phase protector, timer, chillers/condensing unit water cooled screw chiller compressors, evaporators, expansion valves, water cooled condensers, oil cooler, oil pipings, oil filters, refrigerant pipings, refrigerant filters, solenoid and automatic control valves, cooling tower nozzle, condensor water pump with motors, electrical control wiring and including coil changing, cleaning of AHU drain, AHU V belts, replacement of hessian cloth with chain,heat varnishing, baking,connecting plates,checking of all electrical connections (removing of carbon deposits if any), pre-filter and micro filrter cleaning,greasing of all bearings etc.,complete with the following all as specified and directed. [Water cooled screw chiller type Model – XWC4S-052AR2 – 2 x 52 TR (Make:Bluestar) installed in VK Hall Building].

NOTES:- (Applicable for BOQ Serial Item No.1 to 6 here in before) (i) The works shall be executed through OEMs Authorised Service Centre Engineers or through OEMs Certified Agencies as approved by GE. (ii) The contractor shall be liable to maintain temperature and relative humidity as per the designed parameters or set parameters to achieve the desired HVAC conditions at all 5 package unit locations and one water cooled AC plant location by keeping the system fully functional. (iii)The cost of spares and labour for any servicing, minor and major repairs of the plant(s) as and when required or as recommended by the OEM during inspection/analysis report shall be the responsibility of the contractor and the unit rate(s) quoted shall be deemed to inclusive of the same. (iv) The contracor shall deploy OEM's Authorised Service Engineer/Technician alongwith with Helper at site for general shift duty of 08 (Eight) Hours on all working days including Sunday(s) and Holiday(s) to carry out daily maintenance /checking of the system. (v) The Contractor shall provide the following preventive and comprehensive services arising out of wear and tear of the normal running of AC Plants/Chiller Plants. (vi) Preventive and Comprehensive Maintenance : The authorised Service Engineer of OEM or OEM Certified Agencies shall visit the site quarterly for carrying out preventive and corrective maintenance on all the units installed at site. This includes maintenance of all mechanical,electrical and electronic parts / sub-assemblies. The preventive maintenance report will be as per the Original Equipment Manufacturer's instructions and as specified in Particular Specification. The Contractor may claim payment on monthly basis. In that case the payment shall be made with pro-rata basis on quoted rates. (vii) Breakdown Maintenance : The Authorised Service Engineer of OEM or OEM Certified Agencies will be called in case of any breakdown and the same shall be attended within 24 Hours of lodging of complaint, failing which a penal recovery of Rs.10,000.00 (Rupees Ten Thousand Only) per day till such time the unit is attended and complaint is resolved,will be recovered from the outstanding dues to the Contractor. The OEM's authorised service representative or OEM certified agencies will carry out the required repairs of the units and appraise GE,Engineer-in-Charge and JE the status of the break down repair at site. (viii) No payment shall be made on account of any breakdown service during preventive and comprehensive maintenence period.

Supply and Fix in repair, 40 Amps,4 pole,open bakelite terminal block connector,complete all as specified and directed.

Supply and Fix in repair 3 pole power contactors conforming to IS / IEC 60947-4-1 & IEC 60947-4-1, Type MNX 18, AC-3 rating 18 Amps and AC-1 rating 30 Amps,complete all as specified and directed. [Cat No.CS94100/CS94101 of Make “L&T” or equivalent Model of Make Siemens/ Schneider / ABB]

Supply and Fix in repair 3 pole power contactors conforming to IS / IEC 60947-4-1 & IEC 60947-4-1, Type MNX 32, AC-3 rating 32 Amps and AC-1 rating 55 Amps,complete all as specified and directed. [Cat No.CS94111 of Make “L&T” or equivalent Model of Make Siemens/ Schneider / ABB]

Supply and Fix in repair, 3 pole power contactors conforming to IS / IEC 60947-4-1 & IEC 60947-4-1, Type ML 3, AC-3 rating 40 Amps and AC-1 rating 45 Amps,auxillary contacts 2 NO + 2 NC,complete all as specified. [Cat No.SS90721 of Make “L&T” or equivalent Model of Make Siemens/Schneider/ ABB.]

Supply and Fix in repairs, panel mounted protection device for,single phasing, reverse phasing, unbalanced supply with auto reset, 1 NO output contact with pre-wired terminals,suitable for any HP/kW rating pump motor, Supply Voltage415 VAC ± 20%, 50 Hz ± 3%,Output Relay Contact 1 NO,Output Contact Rating5 Amp, 240 VAC (Resistive),Unbalance Trip Setting 50 V ± 10 VAC,Trip Time Delay for unbalance 3.5 secs. ± 1.5 sec,Operating Conditions: Temperature-5 °C TO + 60 °C and Humidity Upto 95% Rh,complete all as specified and directed. [Cat No. VSP3 of Make Minilec or equivalent Model of Make L&T/ Seimens]

Supply and Fix in repair, AC Ammeter, range 0-100A,accuracy Class 1, size 96mm x 96mm, flush mounted, complete all as specified and directed. [Cat No. SMI - 144 of Make “AE” or equivalent Model of Make HPL/L&T]

Supply and Fix in repair, AC Voltmeter, range 0-600V,accuracy Class 1, size 96mm x 96mm, flush mounted, complete all as specified and directed. [Cat No. SMI - 144 of Make “AE” or equivalent Model of Make HPL/L&T]

Supply and Fix in repair,LED Indicator 16 mm with power consumption < 0.6W, LVGP & surge protection, 64/110 Volts AC/DC / 240 Volts AC, colour Red/Green/ Yellow/Blue all as specified. [Cat No. SIL of Make “L&T” or equivalent Model of Make HPL/ AE]

Supply and Fix in repair,Moulded case circuit breakers (MCCBs),conforming to IEC 60947-2& IEC 60947-2, AC 415V, 4 pole, with current rating 63 Amps and 18 KA breaking capacity Icu at 415V, AC, 50Hz, with adjustable Over Load setting: 0.8 - 1.0 x In, complete all as specified and directed. [Cat No.CM90518OOHO of Make “L&T” or equivalent Model of Make Siemens/ Legrand / ABB.]

Supply and Fix in repair,Moulded case circuit breakers (MCCBs),conforming to IEC 60947-2& IEC 60947-2, AC 415V, 4 pole, with current rating 100 Amps and 25 KA breaking capacity Icu at 415V, AC, 50Hz, with adjustable Over Load setting: 0.8 - 1.0 x In and adjustable Short Circuit setting: 6-10 x In.complete all as specified and directed. [Cat No.CM90642OOLO of Make “L&T” or equivalent Model of Make Siemens/ Legrand / ABB.]

Supply and Fix in repair,thermal overload relay,Type MN - suitable for MNX contactor, with built-in single phasing protection,manual and auto reset mode,type of mounting (Operation) MN 2 (Directly Operated), relay range 9 to 15 Amps,complete all as specified and directed. [Cat No.SS94142OOBO of Make “L&T” or equivalent Model of Make Legrand/ Hager/Seimens /GE/ Schneider/ABB.]

Supply and Fix in repair,miniature circuit breaker (MCBs) single pole and neutral,C curve, 240 Volts,10KA, 6 to 32 Amps,complete all as specified and directed. [Cat No. BB20060C/BB20100C/BB20160C/BB20200C/BB20250C/BB20320C of Make L&T or equivalent Model of Make Legrand/ Hager/Seimens/GE/ Schneider/ABB]

Supply and Fix in repair,Miniature Circuit Breaker (MCBs) triple pole,C curve, 415 Volts,10KA, 32 Amps,complete all as specified and directed. [Cat No.BB30320C of Make L&T or equivalent Model of Make Legrand/ Hager/Seimens/GE/ Schneider/ABB]

Supply and Fix in repair,Miniature Circuit Breaker (MCBs) triple pole & neutral,C curve, 415 Volts, 10KA, 6 to 32 Amps.,complete all as specified and directed. [Cat No.BB40060C/BB40100C/BB40160C/BB40200C/BB40250C/BB40320C of Make L&T or equivalent Model of Make Legrand/ Hager/Seimens/GE/ Schneider/ABB]

Supply and Fix in repair,Miniature Circuit Breaker (MCBs) triple pole & neutral,C curve,415 Volts, 10KA, 63 Amps.,complete all as specified and directed. [Cat No.BB40630C of Make L&T or equivalent Model of Make Legrand/ Hager/Seimens/GE/ Schneider/ABB]

Disconnection of existing Control Panel, form all incoming and outgoing electrical connections, replacement of burnt out internal wirings with with suitable size FRLSH PVC insulated multistranded copper conductor wires,replacement of defective lugs,thimbles etc.,through cleaning of panel both internally and externally, re interconnection of parts including reconnection of all incoming and outgoing electrical connections after repairs,testing and commissioning,complete all as specified and directed.

Supply Only, digital hygro thermometer,with clock, temperature and humidity display,temperature range 10 ~ 60°C / (14 ~ 140°F) accuracy ± 1°C / (± 1.8°F),temperature resolution : 0.1°C / °F, humidity range 20% RH ~ 95 % RH,humidity resolution 1 % RH accuracy 8% RH,complete all as specified and directed. [Model KM 918A of Make Kusam-MECO or equivalent Model of Make HTC/Mextech]

De-Scaling of Condensers of capacity 26 TRX 3 Units installed at Signal Section by using dilute de-scaling agents, filling it for 24 Hours, removing the scalings by mechanical wire brush after opening the side plates,cleaning throughly including replacement of gaskets, refixing the end plates,complete all as specified and directed.

De-Scaling of Condensers of capacity 26 TRX 2 Units installed at CRRW by using dilute de-scaling agents, filling it for 24 Hours, removing the scalings by Mechanical wire brush after opening the side plates,cleaning throughly including replacement of gaskets, refixing the end plates complete plant all as specified and directed.

Overhauling of Air-Handling Unit of AC Plant of capacity 26 TR x 2 installed at CRRW including coil changing, cleaning of AHU drain, replacement of hessian cloth with chain, heat varnishing, baking,connecting plates, checking of all electrical connections (removing of carbon deposits if any), pre-filter and micro filter cleaning and greasing of bearings, AHU V Belts, thermostat & humdistate,complete all as specified and as directed.

Overhauling of Air-Handling Unit of AC Plant of capacity 26 TR x 3 installed at Signal Section including coil changing, cleaning of AHU drain, replacement of hessian cloth with chain, heat vernishing, baking, connecting plates, checking of all electrical connections (removing carbon depositsif any), pre-filter and micro filter cleaning, greasing of bearings, AHU V Belts, thermostat & humdistate,complete all as specified and as directed.

Overhauling of Air-Handling Unit of AC Plant of capacity 66 TR x 4 Nos installed at Annx I & II Service Bldg including coil changing, cleaning of AHU drain, replacement of hessian cloth with chain, heat varnishing, baking, connecting plates, checking of all electrical connections (removing of carbon deposits if any), pre-filter and micro filter cleaning & greasing of bearings, AHU V Belts, thermostat & humdistate, complete all as specified and as directed.

Overhauling of Air-Handling Unit of AC Plant of capacity 75 TR x 2 Nos installed at Annx III Service Bldg including coil changing, cleaning of AHU drain, replacement of hessian cloth with chain, heat varnishing, baking, connecting plates, checking of all electrical connections (removing of carbon deposits if any), pre-filter and micro filter cleaning & greasing bearings, AHU V Belts, thermostat & humdistate,complete all as specified and as directed.

Disconnecting existing defective condensor/Chiller/Hot water generator pump of capacity 3 HP, 3 Phase, transporting to OEM's service centre for checking,segregating serviceable and unserviceable parts, cleaning the serviceable parts viz.stator, rotor, terminal box,bearings,shaft, key etc. thoroughly as per OEM's reccommendations,replacement of unserviceable parts and refixing the pump in original position,reconnecton including testing on full load and commissioning,complete all as specified and directed. Note :- Spares parts for replacement will be measured and paid separately under respective items of this BOQ.

Disconnecting defective condensor/Chiller/Hot water generator pump of capacity 5 HP, 3 Phase, transporting to OEM's service centre for checking,segregating serviceable and unserviceable parts, cleaning the serviceable parts viz.stator, rotor, terminal box,bearings,shaft, key etc. thoroughly as per OEM's reccommendations,replacement of unserviceable parts and refixing the pump in original position,reconnecton including testing on full load and commissioning,complete all as specified and directed. Note :- Spares parts for replacement will be measured and paid separately under respective items of this BOQ.

Disconnecting defective condensor/Chiller/Hot water generator pump of capacity 7.5 HP, 3 Phase, transporting to OEM's service centre for checking,segregating serviceable and unserviceable parts, cleaning the serviceable parts viz.stator,rotor, terminal box,bearings,shaft, key etc. thoroughly as per OEM's reccommendations,replacement of unserviceable parts and refixing the pump in original position,reconnecton including testing on full load and commissioning,complete all as specified and directed. Note :- Spares parts for replacement will be measured and paid separately under respective items of this BOQ.

Disconnecting defective water pump motor, transporting to OEM's service centre for checking, dismantaling of parts,removing burnt out windings with insulating materials,cleaning throughly internally and externally, rewinding motor motor of capacity 1.5 HP,Single Phase, 230 V, 50 Hz, with super enamelled copper wires of existing size/gauge including provision of all insulating materials and varnishing,lubrication of bearing / bushes using fresh lubricant all as per OEM's reccommendations, replacement of defective parts,re-assembling, including testing and commissioning,complete all as specified and directed. Note :- Spares parts for replacement will be measured and paid separately under respective items of this BOQ.

Disconnecting defective condensor/Chiller/Hot water pump motor,transporting to OEM's service centre for checking,dismantaling of parts,removing burnt out windings with insulating materials,cleaning throughly internally and externally, rewinding motor motor of capacity 3 HP,Three Phase, 415 V, 50 Hz, with super enamelled copper wires of existing size/gauge including provision of all insulating materials and varnishing,lubrication of bearing / bushes using fresh lubricant all as per OEMs reccommendations,replacement of defective parts,re-assembling, including testing and commissioning,complete all as specified and directed. Note :- Spares parts for replacement will be measured and paid separately under respective items of this BOQ.

Disconnecting defective condensor/Chiller/Hot water motor,transporting to OEM's service centre for checking,dismantaling of parts,removing burnt out windings with insulating materials,cleaning throughly internally and externally, rewinding motor motor of capacity 5 HP,Three Phase, 415 V, 50 Hz, with super enamelled copper wires of existing size/gauge including provision of all insulating materials and varnishing,lubrication of bearing / bushes using fresh lubricant all as per OEM's reccommendations, replacement of defective parts,re-assembling, including testing and commissioning,complete all as specified and directed. Note :- Spares parts for replacement will be measured and paid separately under respective items of this BOQ.

Disconnecting defective condensor/Chiller/Hot water motor,transporting to OEM's service centre for checking,dismantaling of parts,removing burnt out windings with insulating materials,cleaning throughly internally and externally, rewinding motor motor of capacity 7.5 HP,Three Phase, 415 V, 50 Hz, with super enamelled copper wires of existing size/gauge including provision of all insulating materials and varnishing,lubrication of bearing / bushes using fresh lubricant all as per OEM's reccommendations,replacement of defective parts,re-assembling, including testing and commissioning,complete all as specified and directed. Note :- Spares parts for replacement will be measured and paid separately under respective items of this BOQ.

Taking down carefully shafts from various type/capacity of monoblock pump motor sets, re-metalling worn out portion by welding with suitable electrode as per the material of construction of the shaft, turning and machining to its existing dia./size,including re fixing in original position,complete all as specified and directed.

Disconnecting defective blower motor,transporting to OEM's service centre for checking,dismantaling of parts,removing burnt out windings with insulating materials,cleaning throughly internally and externally, rewinding motor motor of capacity 3 HP,Three Phase, 415 V, 50 Hz, 2800 RPM, with super enamelled copper wires of existing size/gauge including provision of all insulating materials and varnishing, lubrication of bearing / bushes using fresh lubricant all as per OEM's reccommendations,replacement of defective parts,re-assembling, including testing and commissioning, complete all as specified and directed.

Supply Only,chrome steel ball bearing No. 6205 ZZ - 6209 ZZ,complete all as specified. (Make: TATA/NBC/SKF)

Supply Only,chrome steel ball bearing size 6305 ZZ - 6309 ZZ,complete all as specified. (Make: TATA/NBC/SKF)

Supply Only, impeller suitable for Condensor/Chiller/Hot water generator pumps of capacity up to 7.5 HP as per OEM's specifications.

Supply Only, mechanical seal set suitable for Condensor/Chiller/Hot water generator pumps of capacity up to 7.5 HP as per OEM's specifications.

Supply Only, oil seal,lock nut & lock washer set suitable for Condensor/Chiller/Hot water generator pumps of capacity up to 7.5 HP as per OEM's specifications.

Supply Only,coupling with rocker assembly suitable for Condensor/Chiller/Hot water generator pumps of capacity up to 7.5 HP as per OEM's specifications.

Supply Only, gland packing (teflon asbestos with mechanical seal) suitable for Condensor/Chiller/Hot water generator pumps of capacity up to 7.5 HP as per OEM's specifications.

Supply Only, electrical terminals including terminal plates suitable for pump motors,3 Phase, 415V as per OEM's specifications.

Supply Only, PVC cooling fan blade suitable for pump motors,3 Phase, 415V as per OEM's specifications.

Materials and Labour for carring out the leak test by nitrogen gas filling for desired pressure testing for 24 Hours, arresting the leakages, removing the entire Nitrogen gas after testing, evacuating the system by vaccum Pump and charging the fresh refrigerant to full capacity of 26 TR plant for smooth functioning of AC Plant installed in CRRW Building,complete all as specified and directed. Note: Charging of fresh refrigerant will be measured and paid separately under relevant item of this BOQ.

Materials and Labour for carring out the leak test by nitrogen gas filling for desired pressure testing for 24 Hours, arresting the leakages, removing the entire Nitrogen gas after testing, evacuating the system by vaccum Pump and charging the fresh refrigerant to full capacity of 26 TR plant for smooth functioning of AC Plant installed in Signal Section Building,complete all as specified and directed. Note: Charging of fresh refrigerant will be measured and paid separately under relevant item of this BOQ.

Materials and Labour for carring out the leak test by nitrogen gas filling for desired pressure testing for 24 Hours, arresting the leakages, removing the entire Nitrogen gas after testing, evacuating the system by vaccum Pump and charging the fresh refrigerant to full capacity of 66 TR plant for smooth functioning of AC Plantinstalled in Annx I & II Building,complete all as specified and directed. Note: Charging of fresh refrigerant will be measured and paid separately under relevant item of this BOQ.

Materials and Labour for carring out the leak test by nitrogen gas filling for desired pressure testing for 24 Hours, arresting the leakages, removing the entire Nitrogen gas after testing, evacuating the system by vaccum Pump and charging the fresh refrigerant to full capacity of 75 TR plant for smooth functioning of AC Plant installed in Annx III Building,complete all as specified and directed. Note: Charging of fresh refrigerant gas will be measured and paid separately under relevant item of this BOQ.

Material and Labour for painting to Air-Conditioning Plant machinaries, Motors, Condensers, Pipe Lines , pumps,air handling unit, etc. of AC plants of capacity upto 52 TR, with with one coat of synthetic enamel paint after preparation of old painted surfaces,all as per the existing and OEM's reccommended colour code,complete all as specified and directed.

Material and Labour for painting to Air-Conditioning Plant machinaries, Motors, Condensers, Pipe Lines , pumps,air handling unit, etc. of AC plants of capacity 66 TR to 80 TR, with one coat of synthetic enamel paint after preparation of old painted surfaces,all as per the existing OEM's reccommended colour code,complete all as specified and directed.

Supply and Fix in repair,pressure gauge,round,with analog display of pressure range 0-150 psi,suitable for discharge line of AC Plants, all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair,pressure gauge,round,with analog display of pressure range 0-300 psi,suitable for liquid line of AC Plants,all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair,Water Temprature Thermometer,100 mm dia, temperature range 0-100 Degree Centigrade,suitable for water line of AC Plants,all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair,water flow switch,suitable for water line of AC Plants,all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair, water pressure gauge,100 mm dia.,with analog display of water pressure range 0-150 psi,suitable for water line of AC Plants,as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair,V Belt,B-68/B-65 suitable for drive pulleys of AC Plant equipments all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair,V Belt,A - 32 suitable for drive pulleys of AC Plant equipments all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair, V Belt,B-112 suitable for drive pulleys of AC Plant equipments all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair, V Belt,B - 72 suitable for drive pulleys of AC Plant equipments all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair,Oil Pressure Gauge,with analog display of oil perssure range 0-5 bar,suitable for compressor of AC Plant,all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair, PVC fan blade suitale for blower motor of capacity 3 HP of outdoor unit of AC Plants,all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair,Solonoid Valve,size 1/4",suitable for AC Plants of capacity 15 TR to 80 TR,all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair,Safety Valve,rating 350 psi,suitable for discharge line of AC Plants,all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair,LWT/ HWT Sensor,thermowell insert type,SS 304,encapsulated probe,operating temperature 0-120 Degree Celcius,suitable for 26 TR capacity AC plants,all as per OEM's specifications, complete all as specified and directed.

Supply and Fix in repair,LWT/ HWT Sensor,thermowell insert type,SS 304,encapsulated probe,operating temperature 0-120 Degree Celcius,suitable for AC plants of capacity 66 TR -75 TR,all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair,cooling tower sprinkler assembly,fan blade assembly with jet box/Gear box,driver shaft, FRP fan for motor assembly,base,bearings and arms stay supports etc. suitable for cooling tower of 26 TR capacity AC Plant,all as per OEM's specifications,complete all as specified and directed.

Supply Only,refrigerant R 22 suitable for various AC plants,all as per OEM's specifications,complete all as specified.

Supply Only,refrigerant R134a suitable for various AC plants,all as per OEM's specifications,complete all as specified.

Supply and Fix in repair,scroll type sealed compressor of capacity 13 TR with all accessories,base mounting accessories,liquid line and discharge line valves,safety valve including refrigerant charging and oil charging all as per OEM's specifications,including testing for satisfactory cooling effect and commissioning,complete all as specified and directed. Note:- Old unserviceable compressor shall be deposited to AGE E/M store yard and receipt voucher obtained.

Servicing of cooling tower of 26 TR x 2 AC plant,FRP type,installed in CRRW Building by draining out water from bottom tray,descaling with chemicals as per OEM's reccommendations,brushing bottom tray and honey comb fins for making them silt free and algea free including replacement of unserviceable float valve and PVC nozzles all as per OEM's specifications and including testing and commissioning after servicing,complete all as specified and directed.

Servicing of cooling tower of 26 TR x 3 AC plant,FRP type, installed in Signal Section Building by draining out water from bottom tray,descaling with chemicals as per OEM's reccommendations,brushing bottom tray and honey comb fins for making them silt free and algea free including replacement of unserviceable float valve and PVC nozzles all as per OEM's specifications and including testing and commissioning after servicing,complete all as specified and directed.

Supply and Fix,32 mm bore,galvanized steel tubing,medium grade with all fittings in pipe line of AC plants including all required jointing arrangements as per OEM's reccommendations and including taking down existing unserviceable pipeline,complete all as specified and directed.

Supply and Fix in repairs,gun metal globe or gate valves with iron wheel head, screwed both ends for iron pipe 25 mm bore, complete all as specified and directed.

Supply and Fix in repair,oil heater suitable for screw type compressors of AC Plants,all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair,oil filter kit suitable for Chiller Model KAS 070.14 ,all as per OEM's specifications, complete all as specified and directed.

Supply and Filling in lubricant POE suitable for compressor of Chiller Model KAS 070.14,all as per OEM's reccommendations and specifications,complete all as specified and directed. [Make:- Castrol Icematic'SW170'/Frascold'FC170'/Mobil 'EAL Arctic 150']

Supply and Fix in repair,drier core filter kit suitable for Chiller Model KAS 070.14,all as per OEM's specifications,complete all as specified and directed.

Supply and Fix in repair,gasket filter drier top flange kit suitable for Chiller Model KAS 070.14,all as per OEM's specifications,complete all as specified and directed..

Material and Labour replacement of insulations for ducting of AC Plants,size 5ft x 5ft ,all as per OEM's reccommendations and specifications,complete all as specified and directed.

Supply and Fix in repair,variable frequency drive,3 Phase,415 volts, 50Hz,rating 33 Amps,suitable for 15 KW 20 HP pump motors,complete all as specified as directed. [Make:ABB/Siemens/Schneider/Controls Instruments India/A. S. Automation & Controls]

Supply and Fix in repair,variable frequency drive,3 Phase,415 volts, 50Hz,rating 8.5 Amps,suitable for 3.7 KW 5 HP pump motors,complete all as specified as directed. [Make:ABB/Siemens/Schneider/Controls Instruments India/A. S. Automation & Controls]

Supply and Fix in repair,micro processor controller with PCB card suitable for water cooled unit of AC Plant of capacity 26 TR,all as per OEM's specifications,complete all as specified as directed.

M/S LAKSHMI COOLING CENTRE

Maa Mira Enterprise

M/S BARUA REFRIGERATION WORKS

M/S L N ENTERPRISE

Singhs Construction

KAILSON

M/S DHAR AND DHAR

FREEZCON