SPECIAL REPAIRS REPLACEMENT TO AC PLANT 3 X 34.5 TR AGAINST BER ITEMS AT INS EKSILA UNDER GE U-I, VISAKHAPATNAM

Supplying, Installing, testing and commissioning of Floor Mounted Compact Scroll type Water Cooled Chiller Package Units of Capacity not less than 34.5 TR, suitable for ambient conditions, complete with Hermetically sealed Scroll type Compressors with independent Circuits with minimum loading capacity 15%, operating voltage 360 – 440 Volts, 50 Hz, 3 Phase, AC supply working with refrigerant R – 407C/ R-410A, Water Cooled Shell and Tube type Condenser with internally knurled copper tubes, Horizontal Direct Expansion (DX) type Evaporator with Carbon Steel Shell and Seamless Copper Tubes with 19 mm thick Nitrile Rubber Insulation, Common Base Frame, Interconnected Copper Refrigerant Piping and Wiring, Vibration Isolators, gauge panel, Automatic Safety Controls, Flow Switch at evaporator and Condenser, Ozone friendly CFC Free Refrigerant Gas R-407C/ R-410A including Thermostatic Expansion Valve for Refrigerant Flow Control, properly spaced Baffles for maintaining Optimum Water Velocity and Heat Transfer, adequate supports for tubes complete all as per manufacturer’s instructions including Dismantling and Taking down of existing old unserviceable Central AC Plant of capacity 34.5 TR comprising of Chillers, Compressors, Cooling Towers, Pump sets/ Pipelines, AHU alongwith connected panels/ cables/ pipes/ valves, Ducts alongwith its insulation/ grills, etc. including necessary T & P, Scaffolding and making good disturbed portions to match with existing and shifting the Central AC Plant in AGE E/M MES store Yard (Dolphin Hill ) complete all as specified and as directed. Notes: [a] The Chiller shall be designed for a Working Pressure of 150 PSIG and Hydraulically Tested at 225 PSIG. [b] Test certificates shall be produced for all the condensing units.

Supplying, Installing, testing and commissioning of Chilled Water Pumps End Suction & Top Discharge, Non-Self-Priming, Single-Stage, Centrifugal Volute Type Monoblock Pump of capacity 180 USGPM Water Flow at 20 metres Head, having Cast Iron Casing, Enclosed type Dynamically balanced Phosphor Bronze / SS Impeller, High Tensile Steel Shaft, Carbon Steel Stuffing Box [Sealed by Mechanical Seal], Deep Groove Ball Bearings, TEFC Squirrel Cage High Efficiency Induction Motor, base Plate, Mounting Channel Frame, accessories and fittings, viz. Mechanical Seal, Drains, Coupling, Coupling Guard, Vibration Isolation arrangement by means of Spring / Rubber type mounting suitable for operation on 3 Phase, 415 Volts ± 10%, 50 Hz, AC Supply complete all as per manufacturer’s instructions, as specified and as directed. Note: The rate quoted shall be deemed to be inclusive of necessary civil work viz. PCC foundation and connected works for installation of pumpset and its accessories as required at site.

Supplying, Installing, testing and commissioning of Condenser water Pumps of End Suction & Top Discharge, Non-Self-Priming, Single-Stage, Centrifugal Volute Type Monoblock Pump of capacity suitable for 270 USGPM Water Flow at 25 metres Head, having Cast Iron Casing, Enclosed type Dynamically balanced Phosphor Bronze / SS Impeller, High Tensile Steel Shaft, Carbon Steel Stuffing Box [Sealed by Mechanical Seal], Deep Groove Ball Bearings, TEFC Squirrel Cage High Efficiency Induction Motor, base Plate, Mounting Channel Frame, accessories and fittings, viz. Mechanical Seal, Drains, Coupling, Coupling Guard, Vibration Isolation arrangement by means of Spring / Rubber type mounting suitable for operation on 3 Phase, 415 Volts ± 10%, 50 Hz, AC Supply complete all as per manufacturer’s instructions, as specified and as directed. Note: The rate quoted shall be deemed to be inclusive of necessary civil work viz. PCC foundation and connected works for installation of Pump Set and its accessories as required at site.

Supplying, Installing, testing and commissioning of FRP rectangular / Round / Bottle Shaped vertical induced/ forced draft counter flow type Cooling Tower of capacity not less than 35 TR capacity with uniform water distribution and optimal heat transfer, having tough Fiberglass Reinforced Plastic [FRP] casing of sufficient structural strength to withstand vibrations and wind velocity up to 60 Metres/ Second, FRP Basin, Rigid Honeycomb Type PVC Fill of suitable thickness, SS Sprinklers and Non Clogging Sprinkler Pipes, FRP Drift Eliminator, Energy Efficient Induced Draught Axial Type Fans with factory set and dynamically balanced blades pitch, TEFC Squirrel Cage High Efficiency Induction Motor with IP 65 Protection suitable for 3 Phase, 415 Volts ± 10%, 50 Hz, AC Supply, Inlet, Outlet, Drain and Over Flow Nozzle connections etc. complete all as per manufacturer’s instructions, as specified and as directed. Note: The rate quoted shall be deemed to be inclusive of necessary civil work viz. PCC foundation and connected works for installation of Cooling Tower and its accessories as required at site.

Supplying, Installing, testing and commissioning of Double Skin Air Handling Unit with Air Stream Disinfection system, 34.5 TR Capacity / 75mm Static 24000/ CFM, Horizontal, Floor Mounted, Top / Side Discharge having corrosion resistant extruded aluminum hollow profile with Thermal Break, Heavy Gauge Galvanised Steel Channel Base Frame, 43 mm thick Double Skin Panel with pressure injected CFC & HCFC free PUF with 'k' value of 0.02 W/°C m & density 40 KG/Cu.m, Pre-Coated, Pre-Plasticized galvanised outer and inner skin of 0.60mm thick, Air-Tight Casing using Gaskets and Self-Adhesive Tapes, AMCA certified energy efficient fans with double inlet double width forward or backward curved impellers for high static pressure mounted on Aluminum Extruded Slide Rail Base Frame, Chilled water Coils with combination of 6 Rows deep with anti-corrosion Aluminum fins, PVC Nylon Hinges & Handles, View Port and Marine Lamp, Limit Switch, SS-304 Drain Pan, 10 Micron Pre-Filters, Inspection Windows / Doors complete all as per manufacturer’s instructions, as specified and as directed. The Design Criteria of the AHU shall be as under: [a] Suitable DIDW [Double Inlet Double Width] Fan with AMCA certified Blower having outlet velocity not exceeding 9.2 Metres / Second [b] 4 Pole, TEFC, High Efficiency, Squirrel Cage Induction Motor Drive having BHP rating 20% higher than the peak capacity, suitable for 3 Phase, 415 Volts ± 10%, 50 Hz, AC Supply [c] V-Belt Drive Assembly with Pulleys, Belt, Guard, etc., Double Canvass Connections with Zip to Discharge Duct / Plenum, etc. [d] 50 mm thick, Washable HDPE, 90% down 10 Micron Pre-Filters, Filters, Fixing Framework, Hinge Type Access Doors etc.

S & F Mild Steel ERW Pipe of 100 mm Nominal Bore Class 'C' Heavy Grade, conforming to IS – 1239 as in Chilled Water Piping duly Insulated with 50mm thick Expanded Polystyrene Insulation of density 30 Kg/ Cum and Covered with 28 Gauge Aluminium Cladding including all fittings i.e. Bends, Tees, Teducers, Flanges, Structural Support, Wooden / Puff Blocks, etc.complete all as specified and as directed.

S & F Mild Steel ERW Pipe of 80 mm Nominal Bore Class 'C' Heavy Grade, conforming to IS – 1239 as in Chilled Water Piping duly Insulated with 50mm thick Expanded Polystyrene Insulation of density 30 Kg/ Cum and Covered with 28 Gauge Aluminium Cladding including all fittings i.e. Bends, Tees, Teducers, Flanges, Structural Support, Wooden / Puff Blocks, etc.complete all as specified and as directed.

S & F Mild Steel ERW Pipe of 65 mm Nominal Bore Class 'C' Heavy Grade, conforming to IS – 1239 as in Chilled Water Piping duly Insulated with 50mm thick Expanded Polystyrene Insulation of density 30 Kg/ Cum and Covered with 28 Gauge Aluminium Cladding including all fittings i.e. Bends, Tees, Teducers, Flanges, Structural Support, Wooden / Puff Blocks, etc.complete all as specified and as directed.