Tender For Hvac Work At Rt Ward, 9Th Floor, Annex Building; 1 Hvac Works ( Low Side ) Air Handling Unit-3 Stage Filtration- With Vfd Supply, Installation, Testing And Commissioning Of Factory Fabricated Double Skin Type Air Handling Unitsas Per Specifications Given Below:- Ahu Construction:- It Shall Be Made Out Of Min.43 Mm Thick Panels With Thermal Break Profile & 0.8 Mm Pre-Plasticized / Percolated Galvanised Steel Sheet Outside &0.8 Mm Plain Gi Sheet Inside With 40 Mm Thick Puf Insulation Factory Injected Between Them By Injection Moulding M / C, With Density Not Less Than 38 Kg / Cum Between Them. Casing Sealing Should Be Of L1 Class Of Leakage As Per En 1886, Al Fins Shall Be 0.17Mm Thick And Copper Tubes Shall Of 20 Guage Wall Thickness With Superhydrophobic Coating, Door Limit Switch, Marine Lamp, Cooling Thermostat With Wiring Shall Be Provided. Drain Pan ( Made Out Of 1.25 Mm Stainless Steel ( Ss Grade 304 ) Sheet Insulated With 25 Mm Think Closed Cell Insulation ( Nitrile / Xlpe ) . Necessary Foundation Required & Anti Vibration Pads Shall Be Provided & Cost For The Same Shall Be Included In This Item. Supply Air Stream:- 1 ) Filter Section Consisting Of Pre Filter And Microvee / Fine Filter & Hepa Filter.10 Micron Pre Filters ( Eu- 4 ) , 5 Micron Microvee Filters ( Eu-7 ) , 0.3 Micron Hepa Filters ( Eu-13 ) . 2 ) Ahu Shall Be Comprising Of Didw Blower With Anti Vibration Spring Isolators, Silicon Based Fire Retardant Canvass Connection, Tefc Class Ip55 Motor With Drive Set ( 1W + 1S ) . 3 ) 6 Row Deep Cooling Coilas Per Actual 4 ) Discharge Plenum Section. 5 ) Mixing Box Comprising Of Damper & Filter Section For Floor Mounted Ahus. Coil- Copper Tubes And Aluminium Fins 12-13 Fin. / Inch, Coil Size Shall Be Selected For Air Velocity Of 500 Ft / Minute & Velocity Across Filters At 500 Ft / Minute. Motors Shall Be Suitable For 415 ± 10% Volts, 50 Hz, 3 Phase Ac Supply & High Efficiency ( Eff-1 / Ie-2 ) . Vibration Isolation Shall Be As Per Specifications. . ( Maximum ) Squirrel Cage Induction Motors Suitable For 415 ± 10% Volts, 50 Hz, Ac Supply & High Efficiency ( Ie-2 / Eff-1 Efficiency ) , H.P Of Motor Shall Be As Per Actual Selection Meeting Other Technical Requirements. Cost For Carrying Out Associated Civil Works, Lifting, Shifting, Loading, Unloadiing, Lateral Shifting And Moving The New Ahu Locating The Same On Foundation. Houskeeping And Disposing All Type Of Generated Debris And Scrap Out Of Tmh Is Deemed To Be Included In This Item Cost. Capacity ( Tr ) -60, Cfm-24000, Static Pressure ( In Mm ) -125 As Per Actual Selection, Stage Of Filtration-3 2 Hvac Works ( Low Side ) Fan Coils Units ( Chilled Water Based ) Supply, Installation, Testing And Commissioning Of Gi Powder Coated Horizontal Ceiling Suspended Double Skin Fan Coil Units Complete With Fan, 3 Speed Bldc Motor, 3 Row Deep Cooling Coil, High Static, Aluminium Filters With Filter Box, Insulated Tray, Auxillary Drain Tray, Copper Connection, Canvass Connection, Supporting Arrangement, Electrical Wiring Etc.The Thickness Of Gss Sheet Should Be 1.25 Mm & Thickness Of Filter 15 Mm. The Fan Shall Be Selected For High Static Pressure. The Complete Fan Coil Unit Shall Be In Line With The Standard Specification. The Capacity Of Fan Coil Units Shall Be As Follows. Proper Supporting System For Fcu To Be Provided & Will Be In ContractorS Scope. 3 Fcu-800 Cfm ( 2 Tr ) 4 Fcu-600 Cfm ( 1.5 Tr ) 5 Hvac Works ( Low Side ) Supplying, Laying / Fixing, Testing And Commissioning Of Following Nominal Sizes Of Chilled Water Piping Plumbing Inside The Building ( With Necessary Clamps, Support, Vibration Isolators And Fittings But Excluding Valves, Strainers, Gauges Etc. ) Duly Insulated With Fire Retardant Quality Expanded Polystrene Moulded Pipe Section Of Density 20 Kg / Cu.M After A Thick Coat Of Cold Setting Adhesive ( Cprx Compound ) Wrapping With 500G Polythene Faced Hessain And Finally Applying 0.63Mm Aluminium Sheet Cladding Complete With Type3 , Grade 1 Roofing Feltstrip ( As Per Is:1322 As Amended Up To Date ) At Joints Repairing Of Damage To Building Etc. As Per Specifications And As Required Complete In All Respect. Note:- The Pipes Of Sizes 150Mm & Below Shall Be M.S. C Class As Per Is : 1239 6 65Mm Dia. ( 50Mm Thick Insulation ) 7 50Mm Dia. ( ( 50Mm Thick Insulation ) 8 40 Mm Dia ( 50Mm Thick Insulation ) 9 32 Mm Dia ( 50Mm Thick Insulation ) 10 25 Mm Dia ( 50Mm Thick Insulation ) 11 Hvac Works ( Low Side ) Supply, Installation, Balancing And Commissioning Of Factory / Site Fabricated Gss Sheet Metal Rectangular / Round Shape Ducting Complete With Neoprene Rubber Gaskets, Elbows, Splitter Dampers, Vanes, Hangers, Supports Etc. As Per Approved Drawings And Specifications Of Following Sheet Thickness Complete As Required. Cost For Carrying Out Associated Civil Works, Lifting, Shifting, Loading, Unloadiing, Lateral Shifting, Double Height Scaffolding, Houskeeping And Disposing All Type Of Generated Debris And Scrap Out Of Tmh Is Deemed To Be Included In This Item Cost. 12 Thickness 0.63 Mm Sheet 13 Thickness 0.80 Mm Sheet 14 Thickness 1.00 Mm Sheet 15 Hvac Works ( Low Side ) Supply, Installation, Testing And Commissioning Of Gi Volume Control Duct Damper Complete With Neoprene Rubber Gaskets, Nuts, Bolts, Screws Linkages, Flanges Etc, As Per Specifications. 16 Hvac Works ( Low Side ) Supplying, Fixing Testing Commissioning Of Supply Air Diffusers Of Powder Coated Aluminium With Aluminium Volume Control Dampers With Anti Smudge Ring & Removable Core. 17 Hvac Works ( Low Side ) Supplying, Fixing Testing Commissioning Of Return Air Diffusers Of Powder Coated Aluminium Without Volume Control Dampers With Anti Smudge Ring & Removable Core. 18 Hvac Works ( Low Side ) Supplying, Fixing, Testing And Commissioning Of Fire Dampers In Supply Air Duct / Main Branch And Return Air Path As And Where Required Of Required Sizes I / C Control Wiring, The Damper Shall Be Motorized And Spring Return So As To Close The Damper In The Event Of Power Failure Automatically And Open The Same In Case Of Power Being Restored. The Spring Return Action Shall Be Inbuilt Mechanism And Not Externally Mounted. The Damper Shall Also Be Closed In The Event Of Fire Signal Complete As Required And As Per Specifications. 19 Fire Damper 20 Actuator 21 Hvac Works ( Low Side ) Supplying And Fixing Of Following Thickness Of Mat Finish Closed Cell Nitrile Rubber ( Class O ) Insulation On Duct After Applying Suitable Adhesive For Nitrile Rubber. The Joints Shall Be Sealed Properly, Self Adhesive Nitrile Rubber Tape Insulation Complete As Per Specifications And As Required. 22 25Mm For Supply Duct 23 Hvac Works ( Low Side ) Supplying, Fixing Acoustic Lining On Wall And Ceiling Of Ahu Rooms With 50Mm Thick, Density 32 Kg / Cu.M Resin Bonded Glass Fiber Insulation Friction Fixed In 610Mm X 610 Mm Frame Work Made Of 25X50x50x50x25 Mm Made Out Of 0.6Mm Thick Gi Sheet U Shaped Channel And Covered With Reinforced Fiber Glass Tissue And Finished With 0.80 Mm Perforated Aluminium Sheet Etc. Complete As Required And As Per Specifications. Location: Ahu Room, Pump Room 24 Hvac Works ( Low Side ) Supplying, Fixing, Testing And Commissioning Of Following Valves, Strainers, Gauges In The Chilled Water Plumbing Duly Insulated To The Same Specifications As The Connected Piping And Adequately Supported As Per Specifications. Butterfly Valve ( Manual ) With C I Body Ss Disc, Nitrile Rubber Seal & O- Ring Pn 16 Pressure Rating For Chilled Water Circulation As Specified. 65Mm Dia. 25 Hvac Works ( Low Side ) :- Supply, Installation Testing And Commissioning Of Picbv ( Pressure Independent Valves ( Pn-16 Rated ) With Modulating, 2- Way Control Device. The Valve Should Have Self-Dynamic Flow Control Valves That Are Pressure Independent, Modulating To Accept Digital / Analog Input Bms / Controller Signals And Should Provide Position Feedback Signal To The Control System. It Should Be Diaphragm Type & Pressure Balancing Valve. Pressure Drop Across The Valve Must Not Exceed 20 Kpa Up To Dn 32 And 30 Kpa In Bigger Sizes.Actuator Should Be Gear Type Only Shall Be Rated To Ip54. Valve Shall Be Of Brass Construction Up To Dn32 And Cast Iron Up To Dn150. Valve & Actuator Combination Should Be Able To Give Logarithmic Control Characteristics To Achieve Linear Control. 26 Picbv 20Mm Dia 27 Picbv 25Mm Dia 28 Picbv 65Mm Dia 29 Supply, Installation Testing And Commissioning Of The Following Ball Valves Without Strainer Duly Insulated As Per Specifications And Drawings. It Shall Be Bronze Forged Body Construction With Chrome Plated Bronze Ball And Handle Of Stainless Steel Constructions. 30 Ball Valve 20Mm Dia 31 Ball Valve 25Mm Dia 32 Supply, Installation Testing And Commissioning Of The Following Ball Valves With Strainer Duly Insulated As Per Specifications And Drawings. It Shall Be Bronze Forged Body Construction With Chrome Plated Bronze Ball And Handle Of Stainless Steel Constructions. 33 Ball Valve 20Mm Dia 34 Ball Valve 25Mm Dia 35 Hvac Works ( Low Side ) Supplying, Fixing, Testing And Commissioning Of Following Valves, Strainers, Gauges In The Chilled Water Plumbing Duly Insulated To The Same Specifications As The Connected Piping And Adequately Supported As Per Specifications. Y -Strainer Of Ductile Ci Body Flanged Ends With Stainless Steel Strainer For Chilled / Hot Water Circulation Including Insulation As Specified.65Mm Dia 36 Hvac Works ( Low Side ) Providing And Fixing In Position The Industrial Type Pressure Gauges With Gun Metal / Brass Valves Complete As Required. 37 Hvac Works ( Low Side ) Providing & Fixing In Position The Mercury In Glass Industrial Type Thermometer Complete As Required. 38 Hvac Works ( Ventilation ) Inline Fans Supplying, Installing, Testing And Commissioning Of Inline Fans Suitable For Installing In Any Position In Vertical Or Horizontal Ducts. The Casing Shall Be Double Skin, Internally Acoustically Lined And Constructed Of Galvanised Steel. The Fan Shall Be Didw With Forward Curve Impeller Fitted With Maintenance Free External Rotor Motor. The Motor Shall Be Suitable For 220±5% / 415±10% Volt Single Phase / Three Phase 50 Cycles Ac Supply & Meeting Criterion As Per Ashrae Standard 90.1-2010 And High Efficiency ( Is 12615 ) . Quoted Price Shall Be Inclusive Of Electronic Speed Regulator And Wiring Between Fan & Speed Regulator For Single Phase Fans. Incase Of 3 Phase Fans. Fan Along With Cabinet Should Be Amca Certified. Noise Level Should Not Exceed 65 Db At 3 Meter In Room Condition. Mounting Arrangement, Antivibration Arrangement Of Sring Isolator Mountings Etc. Complete In All Respect Shall Be In ContractorS Scope ( For Exhaust Air And Fresh Air ) Air Quantity : 400 Cfm Static Pressure : 20 Mm Wg Fan Motor H.P: 0.25 H.P Or As Per Actual Selection Meeting Other Technical Parameters 39 Design, Fabrication, S.I.T.C Of Electrical Startor With Variable Frequency Drive Controller For Ahu Having 02Nos Blower Motors.The Vfd Shall Have Frequency Controlller, Microprocessor Based Logic Controller, Integrated Software Capable To Control Frequency Based Inputs From Sensors, The Vfd Shall Be Provided With Suitable Mounting Arrangement To Mount Inside Panel, The Vfd Shall Have Ip-65 Protection Cubical Panel Made Out Of14 Gauge Crca Sheetsuitable For 24000 Cfm Capacity Ahu Having 02Nos Blower Motors As Specified With Mccb, Necessary Safety Arrangements, Ammeter, Voltmeter, Ryb Indications & On / Off Indications Of Each Blower ( One Ft Height M.S Stand To Be Provided Along With The Pannel ) ) Power And Control Control From Ahu Stator Panel To Ahu Motor / Pibcv Valve Will Be Scope Agenciesthe Entire Work Shall Be Complete As Per Specifications & As Per Ie Rules& As Per Directions Of Engineer-In-Charge.
