Supply And Installation Of Pac In Sro Data Centre Supply And Installation Of 1 No . Of 7 Tr Precision Air Conditioner And Sequencing It With Existing 2 Pacs At Data Center , Indian Oil Bhavan , Sro , Chennai , Supply , Installation , Testing And Commissioning Of Bottom Discharge Top Return High Sensible Dx Type Precision Air Conditioning Unit With Air Cooled Condenser . The Pac Should Be Complete With Direct Driven Backward Curve Fans With Ec Motor , Single / Multiple Scroll Compressors , Flat Evaporator Coil With Hydrophilic Blue Fin Coating , Safety Controls For Dx Mode , Electronic Expansion Valves Integrated With Microprocessor Controller , Multistage Heaters , Humidifier , Microprocessor Controller , Inbuilt Electrical Panel . The Unit Should Consisting Of Inlet Filter Section With Eu-4 Filters , Ss Condensate Drain Pan , Microprocessor Panel With Digital Display , Programmable Control & Recording Unit . The Unit Shall Be Suitable For Operation On 415 V 50 Hz Ac Supply . The Display Panel Shall Display Date , Time , Actual & Set Values , Operating Conditions , Signal Faults , Collective Faults Limiting Values . The Cabinet Should Be With 1 . 2Mm Thick Gi Sheet Coated With Epoxy-Polyester Paint And The Panels Are Lined On The Inside With Heat- And Sound-Proofing Insulation To Class 1 Insulation Shall Be Polyurethane Sheet With Minimum 15Mm Thickness Having Better Thermal & Acoustic Properties . The Scroll Compressors Are Suitable For R407c Refrigerant And The Air Cooled Condenser Should Be Inclusive Of Multirow Coil And Axial Fan With Fan Speed Controller . Evaporator Coil Should Be Fully Flat With Hydrophilic Bluefin Coating And Should Be Completely Access From Front Side Of Pac . The Evaporator Fan Should Be Direct Driven Backward Curve Fan With Ec Motor . The Pac Should Have Inbuilt Sequencing Controller &Snmp ( Modbus Protocol ) Bms Integration . Unit Should Be Capable Of Receiving Signal From Fire Alaram Panel And Trip The Unit Under Emergency . Anti Corrosive Coated Condensor Coil To Avoid Corrosion . The Return Air To Pac Is 24Deg C @50% Rh & The Outside Ambient Temperature Is 40 Deg C For Chennai . , 7 Tr Nominal Capacity Pac Unit Capacity . ( 1W ) @ 4800 Cfm With Ec Fan With Snmp Card For Web Monitoring , Motorised Damper , Snmp Card For Remote Monitoring , Lifting , Shifting & Positioning Of Pac Units . , Supply & Installtion Of Ms Stand For Housing Indoor Unit . The Stand Should Be Coated With 2 Coats Of Rust Proof Epoxy Paint . Height Of The Stand Shall Be As Per Available False Floor Height . , Supply & Installtion Of Ms Stand For Housing Outdoor Unit . The Stand Should Be Coated With 2 Coats Of Rust Proof Epoxy Paint . , Supply & Installation Of Suiatble Hard Drawn Copper Piping Between Indoor & Out Door For Suction & Discharge Line Of Suitable Size Including All Fitting & Accessories . Copper Piping Should Be Suitably Supported At Regular Intervals . The Copper Pipe Should Be Insulated With 13Mm Thick Nitrile Rubber Insulation Inside The Conditioned Area . ( Measurement Will Be Per Circuit ) , Supply & Charging Of Eco Friendly Refrigerant . , Supply & Installation Of 2 . 5 Sq . Mm Copper Armoured Control Cable Between Indoor & Outdoor Unit For Each Unit . , Supply & Installation Of Copper Flexible Pvc Shielded Power Cabling Between Isolator & Indoor Unit For Each Unit . Customer Or Electrical Contractor Have To Provide 3 Phase Power Near Pac Units . , Supply & Installation Of Cable For Sequential Controller Operation Of All The Units , Supply Of Ms Supply Air Grills With Powder Cotaed -595 X595 Mm With Volume Control Damper With 55% -65 % Opening For More Airfloe , Supply And Installation Of Cpvc Piping For Humidifier Line Including Elbows With Necessary Supporting Arrangement . 25 Mm Dia , Isolation Valve Of Humidifier Line , Supply & Installation Of Cpvc Drain Piping With 6 Mm Thick Nitrile Rubber Insulation . 32 Mm Dia , Installation , Testing & Commissioning Of Pac Byse Engr & Software Integration , Minor Civil Works ( For Refrigerant Piping , Humidifier & Drain Line Only ) & False Flooring Modifications
