Repair Replacement Of Unserviceable Items Connected With Central Ac Plants Along With Misc Repairing Work For Air Conditioner At Af Station Jamnagar - 1 M&L For Descaling Of Complete Copper Condenser Pipe Of Central / Packaged Type Ac Plants Of Following Capacities By Circulating Suitable Descaling Compound / Solution Into The Tube With Pump, And Running The Pump Continuously Till All The Scales From Tube Are Removed Including Removing Side Covers Of Condenser And Cleaning The Copper Tubes By Means Of Nylon Brushes Till The Complete Scaling Is Removed And Refixing Of Covers Including Replacement Of Rubber Gasket And Refixing Pipe Connection Etc. All As Specified And Directed To Complete Satisfaction Of Engineer-In-Charge. N N 2 Water Condenser, Of 30 Tr Central Ac Plant Of Nmake:- Voltas Or Equivalent Make Reccomended By Oem Approved By The Ge. N N 3 M&L For Descaling Of Complete Chiller Shell Of Central / Packaged Type Ac Plants Of Following Capacities By Circulating Suitable Descaling Compound / Solution Into The Tube With Pump, And Running The Pump Continuously Till All The Scales From Tube Are Removed Including Removing Side Covers Of Condenser And Cleaning The Copper Tubes By Means Of Nylon Brushes Till The Complete Scaling Is Removed And Refixing Of Covers Including Replacement Of Rubber Gasket And Refixing Pipe Connection Etc. All As Specified And Directed To Complete Satisfaction Of Nengineer-In-Charge. N N 4 Supply, Installation, Testing And Commissioning Of End Suction & Top Discharge Type Centrifugal Pumps Back Pull Out Type For Chilled Water Re-Circulation, Complete With Cast Iron Body, Bronze Impeller Complete With Mechanical Seals, Tefc Squirrel Cage High Efficiency Induction Motor, Base Plate, Mounting Channel Frame, Accessories And Fittings I.E. Flexible Connectors ( Bellows ) At Inlet & Outlet Connections, Mechanical Seal, Pressure Gauges, Thermometers, ........... N N 5 .......... Drains, Coupling, Coupling Guard, Vibration Isolation Arrangement By Means Of Spring / Rubber Type Mounting Of Resistoflex Make As Specified Of The Following Capacities And Shall Be Suitable For Operation On 415±10% Volts, 50Hz, 3 Phase Ac Supply. The Pumps Shall Be Insulated With Nitrile Rubber With Suitable Thickness, Including Taking Down Old Pump & Motor And Deposited In Store Yard Of Age E&M. N N 6 Condenser Pump Of 12.5Hp Capacity Make : Kirloskar Brother Or Equivalent Make Recommend By Oem & Approved By The Ge. N N 7 Supply, Installation, Testing And Commissioning Of End Suction & Top Discharge Type Centrifugal Pumps Back Pull Out Type For Chilled Water Re-Circulation, Complete With Cast Iron Body, Bronze Impeller Complete With Mechanical Seals, Tefc Squirrel Cage High Efficiency Induction Motor, Base Plate, Mounting Channel Frame, Accessories And Fittings I.E. Flexible Connectors ( Bellows ) At Inlet & Outlet Connections, Mechanical Seal, Pressure Gauges, Thermometers, ......... N N 8 ........Drains, Coupling, Coupling Guard, Vibration Isolation Arrangement By Means Of Spring / Rubber Type Mounting Of Resistoflex Make As Specified Of The Following Capacities And Shall Be Suitable For Operation On 415±10% Volts, 50Hz, 3 Phase Ac Supply. The Pumps Shall Be Insulated With Nitrile Rubber With Suitable Thickness, Including Taking Down Old Pump & Motor And Deposited In Store Yard Of Age E&M. N N 9 Chiller Pump Of Capacity 12.5Hp ( Make : Kirloskar Brother Or Equivalent Make Recommend By Oem & Approved By The Ge. ) N N 10 Seervicing Of Cooling Tower Fan Motor Complete With Hub Greasing, Suitable For 60 Tr Capacity Of Ac Plant, Fixing In Same At Its Original Position & Including Testing And Commissioning Complete, Including Taking Down Old Fan Motor. N N 11 Supply & Fix Sprinkler With Spray Pipe Suitable For 60 / 100 Tr Capacity Cooling Tower, Including Complete Fitting And Accessories All As Specified And Directed By Engg -In-Charge N N 12 M&L For Taking Out Compressor Motor 30 Kw Cap ( Voltas Central Ac Plant Of Capacity 30 Tr ) , Dis Mantling The Motor With Disconnecting The Same From The Compressor And Remove Rubber Coupling And Its Connected Accessories And Transporting To Reputed Work Shop For Rewinding . Opening The Motor, Cutting & Removing Old And Burnt Winding Wire, Rewinding The Motor With New Super Enameled Copper Winding Of Suitable Size Including Insulating Materials, Varnishing, Drying, Replacement Of Both Driven End Non Driven End Bearings And Base Plate, Reassembling, Refixing In Same Position & Connecting Including Testing And Commissioning Complete All As Specified & Directed By Eng-In-Charge. N N 13 Supply And Fix In Repair V Belts Of Size A / B-46 / 34 / 64 Of Blower Motor Of Ac Plant Any Type. N Nmake : Fenner / Dunlop / Jk. N N 14 S&F Glands Rope For Centrifugal Pump Sets Of Any Capacity All As Directed. N N 15 Supply And Fixing In Repair Pressure Transducer Of Op / Hp / Lp Suitable For Reciprocating Chiller Unit Of 30 Tr Central Ac Plant. N Nmake:- Voltas Model : 09066 Or Equivalent Make Recommend By Oem & Approved By The Ge. N N 16 Supply And Fix In Repair Oil Pressure Cut Out Type Mp-55 For Compressor Of Central Type Ac Plant Of Any Capacity N Nmake : Indfoss / Danfoss / Honeywell. N N 17 Supply And Fixing In Repair Copper Pipe Line For Hp / Lp / Op For Compressor Of Capacity 30 / 50 Tr, All As Specified & Directed By Engineer-In-Charge. N Nmake As Per Manufacturer Recommendation After Written Approval By The Ge N N 18 S&F In Repair 2 Pole Front Mounted Add On Auxiliary Contact Block Type Mnx -A2 For Power Contactor, 1 No & 1 Nc Contact Including Connecting Complete, All As Specified & Directed By Engg-In-Charge. N Nmake:- Siemens / L&T / Bharatia Cuttler Hammer / C&S N N 19 S&F In Repair 4 Pole Front Mounted Add On Auxiliary Contact Block Type Mnx -A1 For Power Contactor, 10 Amp Capacity, 415 V Including Connecting Complete All As Specified & Directed By Engg-In-Charge. N Nmake:- Siemens / L&T / Bharatia Cuttler Hammer / C&S N N 20 S&F In Repair 3 Pole Power Contactor 25 A, 415 V, Coil Voltage 230 V Including Connecting Complete All As Specified & Directed By Engg-In-Charge. N Nmake:- L&T Type Mnx 25 Or Equivalent Of Make Siemens / / Bharatia Cuttler Hammer / C&S N N 21 S&F In Repair 4 Pole Power Contactor 18 A, 415 V, Coil Voltage 230 V Including Connecting Complete All As Specified & Directed By Engg-In-Charge. N Nmake:- L&T Type Mcx 01 Or Equivalent Of Make Siemens / / Bharatia Cuttler Hammer / C&S N N 22 S&F In Repair 3 Pole Power Contactor 32 A, 415 V, Coil Voltage 230 V Including Connecting Complete. N Nmake:- L&T Type Mnx 32 Or Equivalent Of Make Siemens / / Bharatia Cuttler Hammer / C&S N N 23 S&F In Repair 3 Pole Power Contactor 45 A, 415 V, Coil Voltage 230 V With Including Connecting Complete. N Nmake Siemens Type 3Tf4602-0A Or Equivalent Of Make L&T / Bharatia Cuttler Hammer / C&S N N 24 S&F In Repair 1 Pole Front Mounted Add On Auxiliary Contact Block For Power Contactor, 1 No Or 1 Nc Contact Including Connecting Complete. N Nmake Siemens Type 3Tx4010-2A Or Equivalent Of Make L&T / Bharatia Cuttler Hammer / C&S N N 25 S&F In Repair Compressor Star Delta Timer Starting Time Range 3-60 Sec Rated Voltage :- 200-240V, 50Hz Including Connecting Complete. N Nmake Siemens Type 3Rp15761n#208K Or Equivalent Of Make L&T / Bharatia Cuttler Hammer / C&S N N 26 Supply And Fix In Repair Single Phase Preventer Relay For Precision Air Condition Unit N Nmake :- Minilec , Model No :- S2 Vmr 6 Or Equivalent Of Make L&T / Bharatia Cuttler Hammer / C&S N N 27 Supply And Toping Up Refrigerant Gas R-22 To The Central / Package Ac Plant Of Any Capacity System All As Directed By The Engineer In Charge. N N 28 Supply & Fix In Repair 80 Mm Size Butterfly Valve With Cast Iron Body, Seat Of Black Nitride Rubber, Nylon Coated S.G. Iron Disc, Ptfe Coated Ss ( Aisi 410 ) Shaft, Companion Flanges, Nuts, Bolts, Gaskets Etc, Confirming To Bs:5155 Mss Sp.67 & Api. 6098 And Shall Be Designed To Fit Without Gaskets Between Mating And Seal In Both Direction. The Valves Shall Be Of Integral Moulded Design. N Nmake:- L&T, Leader, Zoloto, Upadhay N N 29 Supply & Fix In Repair 100 Mm Size Butterfly Valve With Cast Iron Body, Seat Of Black Nitride Rubber, Nylon Coated S.G. Iron Disc, Ptfe Coated Ss ( Aisi 410 ) Shaft, Companion Flanges, Nuts, Bolts, Gaskets Etc, Confirming To Bs:5155 Mss Sp.67 & Api. 6098 And Shall Be Designed To Fit Without Gaskets Between Mating And Seal In Both Direction. The Valves Shall Be Of Integral Moulded Design. N Nmake:- L&T, Leader, Zoloto, Upadhay N N 30 Supply & Fix In Repair 80 Mm Size Pot Strainer Cast Iron Body, Bolted Cover, Flanged Ends, Basket Of Brass. Bronze / Ss Wire Mesh 24 G X 14 Mesh For Condenser Water Application Complete With Flanges, Nuts Bolts, Gasket Etc All As Directed By Engg -In-Charge. Nmake:- L&T, Leader, Zoloto, Upadhay N N 31 Supply & Fix In Repair 100 Mm Size Pot Strainer Cast Iron Body, Bolted Cover, Flanged Ends, Basket Of Brass. Bronze / Ss Wire Mesh 24 G X 14 Mesh For Condenser Water Application Complete With Flanges, Nuts Bolts, Gasket Etc All As Directed By Engg -In-Charge. Nmake:- L&T, Leader, Zoloto, Upadhay N N 32 M&L For Painting Of Complete Water Cooled Central Ac Plant Of Capacity 60 Tr ( Comprising 3 Nos Compressor Of Capacity 30 Tr, Pipe Lines, Valves, Pump Sets, Cooling Tower Steel Surface, Ahu Pipe Lines And Chiller Pipes Etc ) By Preparation Of Old Painted Surface, Removing Of Dirt / Dust / Oil Grease Etc And Applying Two Coat Of Synthetic Enamel Paint All As Specified And Directed By Engg-In-Charge. N N 33 Supply & Fix In Repair 80 Mm Size Balancing Valves, Cast Iron Body, Flanged Type, Stainless Steel Stem, Epdm Disc, Pressure Test Cocks Complete With Companion Flanges, Nuts , Bolts , Gaskets And Probes For Pressure Measurement Complete With Needle Valves And Dial Type Gauge For Pressure Reading Etc Duly Insulated All As Directed. Nmake:- L&T, Leader, Zoloto, Upadhay N N 34 Supply & Fix In Repair 100 Mm Size Balancing Valves, Cast Iron Body, Flanged Type, Stainless Steel Stem, Epdm Disc, Pressure Test Cocks Complete With Companion Flanges, Nuts , Bolts , Gaskets And Probes For Pressure Measurement Complete With Needle Valves And Dial Type Gauge For Pressure Reading Etc Duly Insulated All As Directed. Nmake:- L&T, Leader, Zoloto, Upadhay N N 35 Supply And Fix In Repair Multi Function Meter 96 X 96, Class 1.0, Three Line Backelite Lcd Display With Back Sealing Arrangement , With Hour Run Meter, Power On Hour, Avg / Max & Total Value Of Active, Reactive & Apparent Power Factor & Span, Power ( Kw ) , Current ( I ) , Voltage ( V ) & Pf Display With Programmable Ct Ratio Of Suitable Size All As Specified And Directed By Engg -In-Charge. Nmake: L&T / Hpl / Secure / Conserve N N 36 Dismantling Of Existing Corrosion Proof Pvc Fill From The Induced Draft Type Cooling Tower Of Fiber Glass Reinforced Plastic ( Frp ) Casting Rectangular Construction With Minimum 1650 Lpm Capacity Complete With All Accessories And Supply And Fix New Corrosion Proof Pvc Fill And Inlet Louvers, Drift , Eliminators Hot Water Distribution Chamber And Nozzles Etc All As Specified And Directed By Engg In-Charge :- N Nnote:- Cooling Tower Shall Be Suitable For The Following Technical Data ;- Water Flow Rate : 1650 Lpm Inlet / Outlet / Wet Bulb Temp : 36.4 / 32.2 / 280C. Nmake :- Mihir / Delta / Paharpur N N 37 The Cooling Tower Accessories And Material Will Be Assembled And Fitted In Presence Of Company Representative And To Be Tested As Per Company Specifications. N N 38 Any Spares Required During Maintenance Like Nuts, Bolts, Rivets , Gaskets Etc Will Be Procured And Rate Will Be Included In Quoted Rate. N N 39 Supply And Fix In Repair Of 100 Mm Dial Type Pressure Gauge With Appropriate Range & Ss Valves And Ss Tubing All As Directed By Engr-In-Charge. Nmake:- Guru / Emrald / D S Engg / Gluck N N 40 Supply And Fix In Repair Of Set Of Individual Confirm 150 Mm Dial Type Temp Gauge With Appropriate Range & Ss Valves And Ss Tubing All As Directed By Engr-In-Charge. Nmake:- Guru / Emrald / D S Engg / Gluck N N 41 Supply And Fix In Repair Of Supply / Return Air Diffusers / Grilles Of Extruded Aluminium Sections Duly Powder Coated With Black Volume Control Damper All As Directed By Engr-In-Charge. Nmake: Dynacraft / Cosmos / Air Master N N 42 Supply And Fix In Repair Of Automatic Fire Damper Of Fusible Link Type As Required For Operation Complete All As Specified & Directed By Eng-In-Charge. ( Note: The Fire Dampers Shall Be Spring Activated On Melting Of Fusible Link Having Melting Point Of 67 To 68 Deg.C. Fire Damper Shall Be Tested As Per Ull- 555 And Certified By Cbri ) . Nmake: Caryaire / Tcs / Tristar / Greenheck N N 43 Supply And Fix In Repair Of 50Mm Thick Tf Quality Thermocol Insulation For Exposed Roof / Under Deck Insulation Fixed With Raul Plug And Gi Screw Washers. It Is Further Fixed With Diagnonal Gi Lasing Wires Fixed With Washers Diagonally All As Specified And As Directed. Nmake: Beardsell / Cooline / Llyod N N 44 Supply And Fix In Repair Of 50Mm Thick Tf Quality Thermocole Insulation For Ahu Room Fixed With 50 X 50 X 1 Mm Thick Gi Channels Frame Work And Further Covered With 28 H Perforated Aluminium Sheet All As Specified And As Directed. N N 45 Supply And Fixing In Repair Expansion Valve For Package Type Ac Plant ( Of Make : Blue Star Model No : Dpa1202 ) Capacity 11 Tr . Nmake As Per Manufacturer Recommendation After Written Approval By The Ge N N 46 Supply And Fix In Repair Hermetically Sealed Compressor With Base Frame & Electrical Phase Reversal Protection Of Capacity 11 Tr Of Package Type Ac Plant ( Of Make Blue Star Model No : Dpa13221 ) Comprising Following Job:- N N ( I ) Charging Of Nitrogen Gas In Unit & Complete System At 300 Psi Pressure And Checking Of Any Dropping Of Pressure / Leakage Up To 72 Hrs After Replacement Of Compressor & Rectification Of Leakage If Any. N N ( Ii ) Vaccumisation Of Complete System For Minimum 2 Days For Dropping Of Vacuum Pressure & Rectification Of Leakage If Any. N N ( Iii ) Charging Of Complete System With R - 22 Gas For Maintaining The System Pressure Up To Hp - 175 Psi & Lp - 65 Psi..... N N 47 ( Iv ) Measure The Inlet And Outdoor Temperature Of Package Unit. N ( V ) Testing & Commissioning Of Compressor After Completion. Nmake:- Emerson Compland Commercial Compressor Model No : Zr72kc-Tfd-522 Or Equivalent Make As Per Manufacturer Recommendation. N N 48 ( Iv ) Measure The Inlet And Outdoor Temperature Of Package Unit. N ( V ) Testing & Commissioning Of Compressor After Completion. Nmake:- Emerson Compland Commercial Compressor Model No : Cr62kqm-Tfd-233Dm Or Equivalent Make As Per Manufacturer Recommendation. N N 49 S&F In Repair Pedestal Bearing With Cast Iron Cover For Blower Of Package Type Ac Plant Up To 10 / 11 Tr Capacity N Nmake : Skf ( No 505 ) Or Equivalent Of Make Tata / Nbc N N 50 Supply & Fix Condenser Fan Motor ( Blue Star Package Unit Of Capacity 11 Tr ) , Fixing In Same Position & Connecting Including Testing And Commissioning Complete, Taking Down Old Fan And Deposited In Store Yard Of Age E&M Complete All As Directed. Nmake: Crompton / Ngef / Bbl / Abb / Siemens X N N 51 Supply & Fix Evaporator Fan Motor ( Blue Star Package Unit Of Capacity 11 Tr ) , Fixing In Same Position & Connecting Including Testing And Commissioning Complete, Taking Down Old Fan And Deposited In Store Yard Of Age E&M Complete All As Directed. Nmake: Crompton / Ngef / Bbl / Abb / Siemens N N 52 Supply And Fixing In Repair Expansion Valve For Package Type Ac Plant ( Of Make : Blue Star Model No : Dpa13225 ) Of Capacity 10 Tr. Nmake As Per Manufacturer Recommendation After Written Approval By The Ge N N 53 Supply And Fixing In Repair Expansion Valve For Package Type Ac Plant ( Of Make : Blue Star Model No : Dpa1202 ) Capacity 11 Tr Nmake As Per Manufacturer Recommendation After Written Approval By The Ge N N 54 Supply And Fixing In Repair Main Electronic Circuit Control Board Of Package Type Ac Plant ( Make : Blue Star Model No : Dpa1202 ) Of Capacity 11 Trincluding Connecting Complete. Nmake As Per Manufacturer Recommendation After Written Approval By The Ge N N 55 Supply & Fix In Repair Expansion Valve Vve Type Along With Flanges For Vve And Element Suitable For 30 Tr Water Cooled Chiller Unit Complete All As Specified And Directed By Engg -In-Charge N Nmake: Sporlan / Indfoss / Danfoss / Honeywell. N N 56 Supply And Fix In Repair Controller Unit Fixed In Existing Enclosure With Connected Accessories For Water Cooled Chiller Package Type Ac Plant N N ( Make Voltas Model No :- Cwcdro300mnt, Compressor Motor :- 30 Kw, Gas :- R22, Capacity :- 90700 Kcal / Hr ) Detail As Under:- N N 57 ( I ) Model :- Vlrp Signal V2a N N ( Ii ) Type :- Deluxe N N ( Iii ) Rang :- 6 / 5 / 4 N N ( Iv ) Aux Supply :- 15Vac N N 58 Control Unit Comprising Controlling Component For Electric System N N ( I ) Model :- Eo N ( Ii ) Type :- Mvpd N ( Iii ) Rang :- 30-220 Amps N ( Iv ) Aux Supply :- 230 Vac N ( V ) Special :- 5 Sec Curve Mpd N N 59 Deployment Of Manpower Tools / Machinery For Comprehensive Maintenance Checking And Cleaning Of Dehumidifier ( Ffb 300 Make Bry Air ) By Carrieng Out Monthly Maintenance Including First Hand Repairs With All Consumables And Spare Parts For Dehumidifier Comprising Of Motors, Filters, Heating Element And Other All Items, Including Electricals Panel Instruments, And Provn Of Control Cabling / Wiring Etc As Directed By Engineer - In - Charge For Smooth And Efficient Performance Of Dehumidifier To Achieve Desired Inside Condition Throughout The Year. Ac Plants N N 60 Deployment Of Manpower Tools / Machinery For Comprehensive Maintenance Checking And Cleaning Of Dehumidifier ( Fli-3000 Cmh Make Bry Air ) By Carrieng Out Monthly Maintenance Including First Hand Repairs With All Consumables And Spare Parts For Dehumidifier Comprising Of Motors, Filters, Heating Element And Other All Items, Including Electricals Panel Instruments, And Provn Of Control Cabling / Wiring Etc As Directed By Engineer - In - Charge For Smooth And Efficient Performance Of Dehumidifier To Achieve Desired Inside Condition Upto The Completion Of Work. N N 61 Supply And Fixing Filter Section Consists Of 50 Mm Thick Washable Hdpe 90% Down 10 Micron Pre-Filters And Size Of Filter 0.825X0.520 Mtr As Per Existing Complete All As Specified And As Directed. N N 62 S&F Mild Steel Bracket / Support For Gi Duct, Fabricated With Mild Steel Angle / Tee / Flat And Similar Section, Including Nut, Bolt, Washers, Welding, Bending, Drilling Holes For Bolt, Including Painting With Two Coat Of Synthetic Enamel Paint Over One Coat Red Oxide Primer, Using Steel Section Conforming To Fe 290 Grade E-165 N N 63 S&F Frp Perforated Type Cable Tray Of Size 100 Mm Wide With Frp Coupler Plate At 2500 Mm C / C, Stainless Steel Hardware Fitting Fixed In Position All As Specified & Directed By Engineer-In-Charge. Nmake- Syntex / Sharda N N 64 Supply & Lay Xlpe Insulated, Pvc Inner Sheathed, Unarmoured, Heavy Duty, Lt Cable Isi Marked With Copper Multistranded Conductor 1100 Volt Grade Of Size 6 Sqmm 4 Core Laid In Duct / Passing Through Pipe / Or Fixed On Walls And Connecting And Testing Complete. N N 65 Supply & Lay Xlpe Insulated, Pvc Inner Sheathed, Unarmoured, Heavy Duty, Lt Cable Isi Marked With Copper Multistranded Conductor 1100 Volt Grade Of Size 16 Sqmm 4 Core Laid In Duct / Passing Through Pipe / Or Fixed On Walls And Connecting And Testing Complete. Nmake For Item No 56 & 57- N ( I ) Cable- Havells / Finolex / Polycab. N ( Ii ) Cable Lugs- Dowell / Copper N N 66 Supply & Fix In Repair Of Air Sensor Circuit Suitable For Precision Type Package Ac, Testing Complete All As Directed By Engr-In-Charge. N N
