COMPREHENSIVE AND PREVENTIVE MAINTENANCE OF CHILLER PLANT 3 x 120 TR AND 3 x 100 TR AND REPAIR/ MAINT OF CONNECTED SYSTEM FOR HVAC WORKS AT AFS TEZPUR UNDER GE (AF) TEZPUR

Amount

SCHEDULE 'A' PART-I (B/R PORTION)

M&L for preventive and comprehensive maintenance of central AC chiller Plant of capacity 3x120 TR Water cooled screw chiller type Model – PFS 1351 DBRY at 106 Sqn through the OEM of Daikin (As per MOU) for following plants and equipments 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 and Replenishing refrigerant gas R134a 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 etc for under mentioned models of Make - Daikin, complete with the following all as specified and directed : - [a] Water cooled screw chiller type Model – PFS 1351 DBRY – 3 x 120 TR capacity including the operations specified.

M&L for preventive and comprehensive maintenance of central AC chiller Plant of capacity 3x120 TR Water cooled screw chiller type Model – PFS 1351 DBRY at 2 Sqn through the OEM of Daikin (As per MOU) for following plants and equipments 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 and Replenishing refrigerant gas R134a 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 tensducer, 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 etc for under mentioned models of Make - Daikin, complete with the following all as specified and directed : - [a] Water cooled screw chiller type Model – PFS 1351 DBRY – 3 x 120 TR capacity including the operations specified.

M&L for preventive and comprehensive maintenance of central AC chiller Plant of capacity 3x100 TR Water cooled screw chiller type Model – PFS 1101 DBRY at New Tech Flight through the OEM of Daikin (As per MOU) for following plants and equipments 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 and Replenishing refrigerant gas R134a 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 tensducer, 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 etc for under mentioned models of Make - Daikin, complete with the following all as specified and directed : - [a] Water cooled screw chiller type Model – PFS 1101 DBRY – 3 x 100 TR capacity including the operations specified.

M&L for preventive and comprehensive maintenance of central AC chiller Plant of capacity 4x66 TR Air cooled screw chiller type Model – KAS 070.14 at Annx I & II Building through the OEM of Kirloskar (As per MOU) for following plants and equipments 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 and Replenishing refrigerant gas R134a 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 tensducer, sensors, capacity transducer, phase protector, timer, chillers/condensing unit Air cooled screw chiller compressors, evaporators, expansion valves, Air cooled condensers, oil cooler, oil pipings, oil filters, refrigerant pipings, refrigerant filters, solenoid and automatic control valves etc for under mentioned models of Kirloskar Make - KAS 070.14, complete with the following all as specified and directed : - [a] Air cooled screw chiller type Model – KAS 070.14 – 4 x 66 TR capacity including the operations specified.

M&L for preventive and comprehensive maintenance of central AC chiller Plant of capacity 2x75 TR Air cooled screw chiller type Model – KAS 070.14 at Annx III Building through the OEM of Kirloskar (As per MOU) for following plants and equipments 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 and Replenishing refrigerant gas R134a 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 tensducer, sensors, capacity transducer, phase protector, timer, chillers/condensing unit Air cooled screw chiller compressors, evaporators, expansion valves, Air cooled condensers, oil cooler, oil pipings, oil filters, refrigerant pipings, refrigerant filters, solenoid and automatic control valves etc for under mentioned models of Kirloskar Make - KAS 070.14, complete with the following all as specified and directed : - [a] Air cooled screw chiller type Model – KAS 070.14 – 2 x75 TR capacity including the operations specified.

M&L for preventive maintenance /cleaning of cooling tower =02 Nos of capacity 150 TR at 106 Sqn fitted with CT fan motor cap 5.5 KW/7.5HP the bottom tub shall be cleaned thoroughly by necessary cleaning agent including checking of serviceability of CT fan tightness and bearing smoothness,fan blade tightness, correctness of alignment of circular type sprinkler branch line and ensuring periodical cleaning / proper supply of water from and cleaning and maint of 10 Nos AHUs (AHU capacity 6500 CFM qty - 03, AHU capacity 8500 CFM qty - 02, AHU capacity 11000 CFM qty - 05) with cleaning agent of all AHU Filters all as directed by Engr-in-charge. Note : (i) Cleaning /servicing activities to be carried out quarterly and shall be measured separately for each time by a qualified technician/helper (ii) Any type of T&P and cleaning agent such as detergent,wire brush etc required shall be arranged by the contractor and rate for the same shall be included in the quoted rate.

M&L for preventive maintenance /cleaning of cooling tower =02 Nos of capacity 150 TR at 2 Sqn fitted with CT fan motor cap 5.5KW/7.5HP the bottom tub shall be cleaned thoroughly by necessary cleaning agent including checking of serviceability of CT fan tightness and bearing smoothness,fan blade tightness, ,correctness of alignment of circular type sprinkler branch line and ensuring periodical cleaning / proper supply of water from make up tank and cleaning and maint of 10 Nos AHUs (AHU capacity 6500 CFM qty - 03, AHU capacity 8500 CFM qty - 02, AHU capacity 11000 CFM qty - 05) with cleaning agent of all AHU Filters all as directed by Engr-in-charge. Note : (i) Cleaning /servicing activities to be carried out quarterly and shall be measured separately for each time by a qualified technician/helper (ii) Any type of T&P and cleaning agent such as detergent,wire brush etc required shall be arranged by the contractor and rate for the same shall be included in the quoted rate.

M&L for preventive maintenance /cleaning of cooling tower =02 Nos of capacity 120 TR at New Tech Flight fitted with CT fan motor cap 5.5KW/7.5HP the bottom tub shall be cleaned thoroughly by necessary cleaning agent including checking of serviceability of CT fan tightness and bearing smoothness,fan blade tightness, ,correctness of alignment of circular type sprinkler branch line and ensuring periodical cleaning / proper supply of water from make up tank and cleaning and maint of 08 Nos AHUs (AHU capacity 6500 CFM qty - 03, AHU capacity 11000 CFM qty - 05) with cleaning agent of all AHU Filters all as directed by Engr-in-charge. Note : (i) Cleaning /servicing activities to be carried out quarterly and shall be measured separately for each time by a qualified technician/helper (ii) Any type of T&P and cleaning agent such as detergent,wire brush etc required shall be arranged by the contractor and rate for the same shall be included in the quoted rate.

M&L for preventive maintenance /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, Total Number = 11 No of AHU Floor mounted/Ceiling mounted of different capacitiescomplete all as specified and as directed. Note : (i) Cleaning /servicing activities to be carried out quarterly and shall be measured separately for each time by a qualified technician/helper (ii) Any type of T&P and cleaning agent such as detergent,wire brush etc required shall be arranged by the contractor and rate for the same shall be included in the quoted rate.

M&L for preventive maintenance/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, Total Number = 12 Nos of AHU Floor mounted/Ceiling mounted of different capacities complete all as specified and as directed. Note : (i) Cleaning /servicing activities to be carried out quarterly and shall be measured separately for each time by a qualified technician/helper (ii) Any type of T&P and cleaning agent such as detergent,wire brush etc required shall be arranged by the contractor and rate for the same shall be included in the quoted rate.

M&L for disconnecting and taking down mechanically and electrically unserviceable primary water pump motor 03 HP capacity for chiller unit, and shifting to civil workshop, dismantling the electric motor and removing burnt out windings, cleaning the slots, rewinding with super enemelled copper winding wire as per existing gauge and size varnishing and drying complete, reassembling, replacing the ball bearings as per existing size and make and transporting to site and re-fixing at original position, connecting electrically and mechanically, testing for satisfactory working complete all as specified and as directed.

M&L for disconnecting and taking down mechanically and electrically unserviceable primary water pump motor 04 HP capacity for chiller unit, and shifting to civil workshop, dismantling the electric motor and removing burnt out windings, cleaning the slots, rewinding with super enemelled copper winding wire as per existing gauge and size varnishing and drying complete, reassembling, replacing the ball bearings as per existing size and make and transporting to site and re-fixing at original position, connecting electrically and mechanically, testing for satisfactory working complete all as specified and as directed.

M&L for disconnecting and taking down mechanically and electrically unserviceable Secondary water pump motor 30 HP capacity for chiller unit and shifting to civil workshop, dismantling the electric motor and removing burnt out windings, cleaning the slots, rewinding with super enemelled copper winding wire as per existing gauge and size varnishing and drying complete, reassembling, replacing the ball bearings as per existing size and make and transporting to site and re-fixing at original position, connecting electrically and mechanically, testing for satisfactory working complete all as specified and as directed.

M&L for disconnecting and taking down mechanically and electrically unserviceable Secondary water pump motor 20 HP capacity for chiller unit and shifting to civil workshop, dismantling the electric motor and removing burnt out windings, cleaning the slots, rewinding with super enemelled copper winding wire as per existing gauge and size varnishing and drying complete, reassembling, replacing the ball bearings as per existing size and make and transporting to site and re-fixing at original position, connecting electrically and mechanically, testing for satisfactory working complete all as specified and as directed.

M&L for disconnecting and taking down mechanically and electrically unserviceable Condensor water pump motor 7.5 HP capacity for chiller unit and shifting to civil workshop, dismantling the electric motor and removing burnt out windings, cleaning the slots, rewinding with super enemelled copper winding wire as per existing gauge and size varnishing and drying complete, reassembling, replacing the ball bearings as per existing size and make and transporting to site and re-fixing at original position, connecting electrically and mechanically, testing for satisfactory working complete all as specified and as directed.

M&L for disconnecting and taking down mechanically and electrically unserviceable Condensor water pump motor 5.0 HP capacity for chiller unit and shifting to civil workshop, dismantling the electric motor and removing burnt out windings, cleaning the slots, rewinding with super enemelled copper winding wire as per existing gauge and size varnishing and drying complete, reassembling, replacing the ball bearings as per existing size and make and transporting to site and re-fixing at original position, connecting electrically and mechanically, testing for satisfactory working complete all as specified and as directed.

Disconnecting mechanically and electrically cooling tower fan motor from the system, shifting to civil workshop, dismantling the electric motor and removing burnt out windings, cleaning the slots, rewinding with super enemelled copper winding wire as per existing gauge and size varnishing and drying complete, reassembling, replacing the ball bearings as per existing size and make, transporting to site and re-fixing at original position, connecting electrically and mechanically, properly matching of blades, testing for satisfactory working all as directed for 7.5 HP/ 5.5 KW/ 720 RPM 415 volts 3 phase AC induction motor of any make complete complete all as specified and as directed.

Supply and fixing as in repair MCCB 250 Amps FP 36 KA 415 volts and making all connections complete all as specified and as directed

Supply and fixing as in repair MCCB 160 Amps FP 25 KA 415 volts and making all connections complete all as specified and as directed

Supply and fixing as in repair MCCB 125 Amps FP 25 KA 415 volts and making all connections complete all as specified and as directed

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.

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.

Supply and fixing in repair Power Contractor of rating 9 to 18 Amps including NO/NC auxiliary contacts complete all as specified and as directed.

Supply and fixing in repair Power contactor of rating 32 amps including NO/NC auxillary contacts complete all as specified and as directed .

Supply and fixing in repair Single phase preventor VSP-D1 complete all as specified and as directed .

Supply and fix in repair Over load relay Typ MN-2 range1.4 Amp to 3.3 Amp complete all as directed.

Supply and fix in repair Over load relay Type MN-5 range 66 Amp to 110 Amp complete all as directed.

Supply and fix in repair Over load relay Typ MN-2 range 9 Amp to 15 Amp complete all as directed.

Supply and fix as in repair Pressure gauge (0-150PSI) round shape complete all as directed.

Supply and fix as in repair Water Temprature Thermometer Round type 100 mm dia 0-60 Degree centigrade complete all as directed.

Supply and fix as in repair Water flow switch model WFS6000 complete all as directed.

Supply and fixing as in repair 3 Phase Digital Voltmeter with accuracy class 1.0 complete all as directed. Make L&T Cat No WL132010OOOO

Supply and fixing as in repair 3 Phase Digital Ammeter with accuracy class 1.0 complete all as directed. Make L&T Cat No WL131010OOOO

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.

M/L for Disconnection of existing Control Panel, form all incoming and outgoing electrical connections, repair to internal wiring / burnt out wiring of LT panel and supply and rewiring with suitable size upto 6 Sqmm single core PVC insulated FRLSH , unsheathed multi stranded 1100 volts grade copper conductor cable up to 20 RM from bus bar to outgoing feeders/ starters including replacement of defective lugs,thimbles etc properly lugged at end terminals , and 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 and fixing in repair Coupling for 03 HP Pump at New Tech flight respectively complete all as specified and as directed

Supply and fixing in repair Coupling for 04 HP Pump at New Tech flight respectively complete all as specified and as directed

Supply and fixing in repair Coupling for 05 HP Pump with rubber bush at 106 Sqn and 02 Sqn respectively complete all as specified and as directed

Supply and fixing in repair Coupling for 7.5 HP Pump with rubber bush at 106 Sqn and 02 Sqn respectively complete all as specified and as directed

Supply and fixing in repair Coupling upto 30 HP Pump with rubber bush at 106 Sqn and 02 Sqn New Tech Flight respectively complete all as specified and as directed

Supply and fixing in repair, impeller suitable for Condensor/Chiller/Primary pumps of capacity up to 7.5 HP as per OEM's specifications.

Supply and fixing in repair 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 and fixing in repair electrical terminals including terminal plates suitable for pump motors,3 Phase, 415V upto 30 HP Pump as per OEM's specifications.

Supply and fixing in repair electrical terminals including terminal plates suitable for pump motors,3 Phase, 415V upto 20 HP Pump as per OEM's specifications.

Supply and fixing in repair electrical terminals including terminal plates suitable for pump motors,3 Phase, 415V upto 7.5 HP Pump as per OEM's specifications.

Supply and fixing in repair PVC cooling fan blade suitable for pump motors,3 Phase, 415V upto 20 HP Pump as per OEM's specifications.

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 fixing in repair chrome steel ball bearing for pump motor upto 4.0 HPcomplete all as specified. (Make: TATA/NBC/SKF)

Supply and fixing in repair chrome steel ball bearing for pump motor upto 7.5 HPcomplete all as specified. (Make: TATA/NBC/SKF)

Supply and fixing in repair chrome steel ball bearing size 6305 ZZ - 6309 ZZ, for 20 HP Pump motor complete all as specified. (Make: TATA/NBC/SKF)

Supply and fixing in repair chrome steel ball bearing for 30 HP Pump motor complete all as specified. (Make: TATA/NBC/SKF)

Taking down carefully shafts of pump motor of capacity upto 30HP 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.

REMCO

JAIN CONSTRUCTION AND ENGINEERS

M/S BARUA REFRIGERATION WORKS