Repairs, Replacement and Maintenance of Central, Package AC Plants and Connected Accessories under GE Utility - II, Visakhapatnam

Amount

M & L for carrying out the de-scaling of condenser of capacity 20 TR to 30 TR by isolating the condenser’s by closing the water inlet and outlet connections, circulating the chemicals [HCl] at appropriate ratio using de-scaling pumps to remove the total deposits of the scale inside the copper tubes of the condenser, opening the both end covers, brushing the water tubes with nylon brushes manually to remove completely the scales and dust accumulated, cleaning the end covers, degreasing and neutralising the complete copper tubes, end covers by circulating the caustic soda solution, flushing out the tubes with fresh water, re-fixing both end covers including replacing the worn out spares such as gaskets, nuts, bolts, washers, connecting the water inlet and outlet connections including testing and commissioning on completion complete all as specified and as directed. Note: Shell and Tube Condenser shall be de-scaled once in three months i.e. on quarterly basis and each de-scaling shall be measured and paid separately.

All as per Serial Item No. 1 above but of condenser of capacity 40 TR.

All as per Serial Item No. 1 above but of condenser of capacity 110 TR.

S & F in repairs 50 mm thick EPS insulation for MS piping of Chilled Water of Size 65 to 125mm dia of 16 KG / Cu.m density covered with wire mesh & cement plaster or Aluminum Cladding to the complete all as specified and as directed.

M & L for disconnecting Motor of capacity 2 HP from the existing Compressor / AHU / Chiller / Condenser Pump Set / Cooling Tower, and carrying to work shop and Rewinding the motor with appropriate gauge super enamelled copper conductor, varnishing, drying, replacement of Bearings with new Bearings, worn-out bushes, connectors, terminal plate and fixing back in original position, connecting cable through terminal block, applying Two coats of synthetic enamel paint of approved tint by spraying machine including preparation of surfaces and including testing on completion, complete all as specified and as directed by Engineer-in-Charge.

All as per Serial Item No. 5 above but of Motor of capacity 3HP.

All as per Serial Item No. 5 above but of Motor of capacity 5 HP.

All as per Serial Item No. 5 above but of Motor of capacity 7.5 HP.

All as per Serial Item No. 5 above but of Motor of capacity 10 HP.

All as per Serial Item No. 5 above but of Motor of capacity 15 HP.

All as per Serial Item No. 5 above but of Motor of capacity 20 HP.

All as per Serial Item No. 5 above but of Motor of capacity 25 HP.

All as per Serial Item No. 5 above but of Motor of capacity 40 HP.

M & L for servicing of Cooling Tower [FRP Type] of 30TR capacity, replacement of ball bearings of cooling tower motors, shaft bush and carrying out repairs to Cooling Tower including replacement of defective parts such as PVC Nozzles, Mesh, Sprinkler, PVC Common Header Pipes, Valves, Bolts and Nuts including servicing of cooling tower bottom Sump, Strainer, arresting of base leakages if any removing and cleaning of fungus complete including white washing the base complete all as specified and as directed. Note: Cooling tower shall be serviced once in six months i.e. half yearly basis and each servicing shall be measured and paid separately.

All as per Serial Item No. 14 above but of condenser of capacity 40 TR.

All as per Serial Item No. 14 above but of condenser of capacity 50 TR.

All as per Serial Item No. 14 above but of condenser of capacity 80 TR.

All as per Serial Item No. 14 above but of condenser of capacity 110 TR.

S & F in repairs Digital Type Voltmeter of Range 0 – 500 Volts complete all as specified and as directed. Make: Havells / HPL / L & T / AE / Schneider / BCH

S & F in repairs Loading Solenoid Valve Coil complete all as specified and as directed. Make: Sporlon / U-Flow

S & F in repairs Power Contactor, 3 / 4 Pole, 415 Volts, 50 Hz, AC, MNX-32 Type complete all as specified and as directed. Make: ABB / BCH / L & T / Siemens / C & S / Schneider

S & F in repairs Bimetal Over Load Relay suitable for 25 to 40 HP Motors complete all as specified and as directed. Make: ABB / BCH / L & T / Siemens / C & S / Schneider

S & F in repairs ET-100, 9 to 30 Seconds, 240 / 215 Volts complete all as specified and as directed. Make: Havells / HPL / L & T / AE / Schneider / BCH

S & F in repairs Thermostatic Expansion Valve MIV 34 / HVE-11 / 16 / 34 complete all as specified and as directed. Make: Sporlon / U-Flow

S & F in repairs MCCB, 4 Pole, 400 Amps, 36 KA, 440 Volts, 3 Phase, AC, 50 Hz, Adjustable type complete with Overload Protection, no-volt thermal based release complete all as specified and as directed. Make: Legrand / L & T / Siemens / ABB / C & S / Schneider / GE

S & F in repairs MCCB, 3 Pole, 63 Amps, 16 KA, 440 Volts, 3 Phase, AC, 50 Hz, Adjustable type complete with Overload Protection, no-volt thermal based release complete all as specified and as directed. Make: Legrand / L & T / Siemens / ABB / C & S / Schneider / GE

S & F in repairs MCCB, 3 Pole, 100 Amps, 16 KA, 440 Volts, 3 Phase, AC, 50 Hz, Adjustable type complete with Overload Protection, no-volt thermal based release complete all as specified and as directed. Make: Legrand / L & T / Siemens / ABB / C & S / Schneider / GE

S & F in repairs MCCB, 3 Pole, 160 Amps, 16 KA, 440 Volts, 3 Phase, AC, 50 Hz, Adjustable type complete with Overload Protection, no-volt thermal based release complete all as specified and as directed. Make: Legrand / L & T / Siemens / ABB / C & S / Schneider / GE

S & F in repairs MCCB, 3 Pole, 250 Amps, 36 KA, 440 Volts, 3 Phase, AC, 50 Hz, Adjustable type complete with Overload Protection, no-volt thermal based release complete all as specified and as directed. Make: Legrand / L & T / Siemens / ABB / C & S / Schneider / GE

S & F in repairs HP / LP / OP / Water Pressure Gauge 0-300 / 0-16 / 0-100 PSIG complete all as specified and as directed.

S & F in repairs Dry / Wet Bulb, Hand Operated Sling Psychrometer complete all as specified and as directed. Make: Honeywell

S & F in repairs Single Phase Preventor, 230 Volts, AC, 50 Hz complete all as specified and as directed. Make: ABB / BCH / L & T / Siemens / C & S / Schneider

S & F in repairs DOL Starter suitable up to 10 HP Motor including replacing defective wiring with copper wire, lugs etc. complete all as specified and as directed. Make: BCH / Siemens / L & T / ABB / Schneider / C & S

S & F in repairs Canvas Coupling complete all as specified and as directed.

S & F in repairs Voltage Protection Relay complete all as specified and as directed. Make: ABB / BCH / L & T / Siemens / C & S / Schneider

S & F in repairs V-Belt C-100 / B-65, 84, 86, 87, 98, 103 / A-30, 32, 78 complete all as specified and as directed. Make: Fenner / Yule

S & F in repairs Shaft Seal Assembly suitable for Model No. 5F40 / 5H40 / 5F20 / SMC 4 65L of Voltas / Accel Make AC Plants complete all as specified and as directed.

S & F in repairs Indication Lamp, R,Y,B complete all as specified and as directed. Make: L & T / Siemens / GE / RR Micro / BCH / Schneider

S & F in repairs Power Contactor 3 Pole, Coil Voltage 220 Volts, with 2NO+2NC ad blocks, 50 Hz, AC, MNX - 50 Type complete all as specified and as directed. Make: ABB / BCH / L & T / Siemens / C & S / Schneider

S & F in repairs Pressure Cut-Out Switch KP / MP-15 complete all as specified and as directed. Make : Indfoss / Danfoss

S & F in repairs Pressure Cut-Out Switch MP-55 complete all as specified and as directed. Make: Indfoss / Danfoss

S & F in repairs Ball Bearings of Model P212 complete all as specified and as directed. Make: SKF / NBC / TATA

S & F in repairs AHU Runner Pedestal Bearing Assembly Model No. 6206 / 6304 / P-205 complete all as specified and as directed. Make: SKF / NBC / TATA

S & F in repairs Tyre Coupling suitable for 5H 40, Voltas Compressor complete all as specified and as directed. Make: Dunlop / Fenner

S & F in repairs 40 mm dia Liquid Line Filters Assembly with Strainers complete all as specified and as directed.

S & F in repairs Liquid Line Flare Unit Bracing with Copper Tubes complete all as specified and as directed. Make: Danfoss / Sporlon

S & F in repairs Brassomatic Pressure Relief Valve of Size ½"X½" suitable for pressure up to 300 PSI complete all as specified and as directed. Make: Brassomatic

S & F in repairs Brassomatic Pressure Relief Valve of Size ½"X½" suitable for pressure up to 350 PSI complete all as specified and as directed. Make: Brassomatic

S & F in repairs Powder Coated Aluminium Supply and Return Air Side Wall / Roof Grills complete all as specified and as directed.

M & L for Repair / Servicing of Non Chemical type Online Electrostatic Scale Preventor of size 100mm bore including replacing rusted nuts, bolts and gaskets complete all as specified and as directed.

All as per Serial Item No. 50 above but of size 80mm bore complete all as specified and as directed.

M & L for preparation of old painted steel surfaces of any description not otherwise described Over 10 cm width or girth and applying two coats of synthetic enamel paint complete all as specified and as directed.

M & L for Under Deck Insulation for metal roof with bonded fibre glass wool of density 16 Kg / Cu.m, 50 mm thick, suitably factory laminated with aluminium foil backed up by scrim and Kraft paper packing with 50 mm projection for overlap and butting comprising of the following complete all as specified and as directed: [a] Insulating material shall confor to BS-476, Part 4, 5, 6 & 7. [b] S & F 6 mm dia MS Rods between purlins suitable for supporting the thickness of insulation material beneath the metal roof. [c] S & F 22 SWG GI Wire support for insulation. [d] S & F Chicken Wire Mesh 12.5 mm 22 SWG of hexagonal construction below the insulation for supporting the same.

Taking down old serviceable GI Ducts of any size and shape from existing ducting and refixing the same after reconditioning of duct by replacing necessary gaskets, nuts, bolts and other required accessories complete all as specified and as directed.

M & L for Y type Strainer, 100 mm dia including replacement of filter, packing, nuts and bolts complete all as specified and as directed.

All as per Serial Item No. 55 above but of size 80mm bore complete all as specified and as directed.

M & L for Butterfly Valves of Cast Iron, 100 mm dia including all necessary bolts, nuts complete all as specified and as directed.

All as per Serial Item No. 57 above but of size 125mm bore complete all as specified and as directed.

S & F GI Sheet of 22 Gauge with TDF Flange as in Rectangular / Square Duct made out of 'L' shaped hollow profile, duly factory boxed, including all accessories such as corner, cleat, carriage bolt, gasket and appropriate sealant on longitudinal joints etc. including fabrication and erection complete all as specified and as directed.

M & L for complete overhauling of [1 X 40 TR], Compressor of AC Plant, of make Voltas, Model 5H40 / 5F40, dismantling the drive set, both motor & compressor, stripping out the defective spare parts, such as end covers, head covers, side covers, valve plates, cylinder lines, discharge valve assembly, connecting rods, intermediate bearing housing, capacity control system, un-loader assembly and crank shaft etc, complete cleaning the compressor with CT / Petrol, flushing out & removal of complete dirt, drain out the capacity control oil, pressure lines, assembling the compressor, pressure testing, charging only the compressor oil, vaccumising the compressor on load and reconditioning of crank shaft by white metal finishing and including replacement of minor spare parts such as bushes, bearings, worn out reeds, springs, lifting pins, etc. complete all as specified and as directed. Note: [a] The quoted rate by the contractor is deemed to be inclusive of replacement of worn out / damaged Main Bearing Pump End, Main Bearing Seal End, Connecting Rod Bearings, Piston Ring, Piston Pin Oil Ring, Discharge Valve Guide Assembly, Seal Cover Plate, Gasket Set, Oil Relief Valve Assembly, S V Spring, Pin Valve Filter, Valve Lifter Pin Spring, DV Seal Lock Washer, Oil Pump Bush, SE Bearing Washer, Thrust Washer, Pump End Bearing Washer, Oil Filter Screen, Lock Ring Piston Pin, SUC Strainer Assembly, Crank Case Heater, Shaft Bolt, Neoprene Bellow etc. [b] The necessary Refrigerant Gas, Compressor Oil and Spares will be measured and paid separately.

All as per Serial Item No. 60 but of [1 X 16 TR] Capacity Semi Sealed compressor of make. BITZER of working temperature up to [–] 25°C complete all as specified and as directed.

Supply only Connecting Rod Assembly suitable for Reciprocating Compressors of Model No. 5H40 / 5F20 / 5F40 / SMC 4-65L of existing capacity and of make as per OEM / Existing make complete all as specified and as directed.

Supply only Valve Plate suitable for Reciprocating Compressors of Model No. 5H40 / 5F20 / 5F40 / SMC 4-65L of existing capacity and of make as per OEM / Existing make complete all as specified and as directed.

Supply only Cylinder Sleeve suitable for Reciprocating Compressors of Model No. 5H40 / 5F20 / 5F40 / SMC 4-65L of existing capacity and of make as per OEM / Existing make complete all as specified and as directed.

Supply only Shaft Seal Assembly suitable for Reciprocating Compressors of Model No. 5H40 / 5F20 / 5F40 / SMC 4-65L of existing capacity and of make as per OEM / Existing make complete all as specified and as directed.

Supply only Crank Shaft Assembly with Key & Lock Nut suitable for Reciprocating Compressors of Model No. 5H40 / 5F20 / 5F40 / SMC 4-65L of existing capacity and of make as per OEM / Existing make complete all as specified and as directed.

Supply only Piston suitable for Reciprocating Compressors of Model No. 5H40 / 5F20 / 5F40 / SMC 4-65L of existing capacity and of make as per OEM / Existing make complete all as specified and as directed.

Supply only Bellow for CC Valve suitable for Reciprocating Compressors of Model No. 5H40 / 5F20 / 5F40 / SMC 4-65L of existing capacity and of make as per OEM / Existing make complete all as specified and as directed.

Supply only Hydraulic Relay suitable for Reciprocating Compressors of Model No. 5H40 / 5F20 / 5F40 / SMC 4-65L of existing capacity and of make as per OEM / Existing make complete all as specified and as directed.

Supply only Oil Pump with Package suitable for Reciprocating Compressors of Model No. 5H40 / 5F20 / 5F40 / SMC 4-65L of existing capacity and of make as per OEM / Existing make complete all as specified and as directed.

Supply only UN Sleeve suitable for Reciprocating Compressors of Model No. 5H40 / 5F20 / 5F40 / SMC 4-65L of existing capacity and of make as per OEM / Existing make complete all as specified and as directed.

Supply only Un-loader Assembly suitable for Reciprocating Compressors of Model No. 5H40 / 5F20 / 5F40 / SMC 4-65L of existing capacity and of make as per OEM / Existing make complete all as specified and as directed.

Disconnecting the Filter Bed from the AHU's of various sizes, cleaning the Air Filters, removal of complete dirt deposited inside the filter bed area by spraying scale removing agent and flushing out with fresh water till removal of complete dirt from the fins area and flushing out with air blower and refixing the same in existing position complete all as specified and as directed. Note: Cleaning of AHU Filter beds shall be carried out once in six months and each descaling shall be measured and paid separately.

M & L for dismantling Centrifugal / Monoblock Pump coupled with Electric Motor, 3 Phase, 415 Volts for overhauling the pump sets of capacity up to 15 HP and including replacement bearings with new bearings, cleaning with Kerosene / Petrol for removing the scales, replacement of Case Ring, Latern Ring, Shaft Sleeve, CI Gland Covers with MS Studs, Ball Bearings, Coupling Key, Rubber Bush, Nut, Bolts, Impeller Key, Lock Washer, Gasket, Greasing etc., re-assembling same in position, testing and commissioning complete all as specified and as directed.

M & L for Descaling of Air Handling Units of various capacities by flushing out the tubes with fresh water with caustic soda until the scale is removed, cleaning the fins with caustic soda mixed water and removing all the dust deposits and applying two coats of synthetic enamel paint of as per colour code over a coat of red oxide primer by spraying machine including preparation of surfaces for runner assembly complete all specified and as directed.

M & L for Chemical Servicing of the Air Cooled Condenser [Outdoor Chiller Unit] of capacity 45 TR by taking out the sheet metal parts, applying the Organic Compound for removal of scales in the Air Cooled Condenser Fins & Tube Area and flushing through forced method, till removal the complete scale deposits across the fins & tube and cleaning, fixing the sheet metal parts, fan blades, etc. complete all specified and as directed.

M & L for repair / maintenance of Control Panel Board of AC Plant of capacity up to 80 TR and including renewal of defective unserviceable spare parts i.e. Control Wiring, Lugs, Cable Glands, Suitable CTs and Decarbonising of bus bars including changing of burned bus bars as necessary, cleaning panel board externally and painting the panel board with two coats of synthetic enamel paint existing colour code by spraying machine complete all as specified and as directed.

S & F Electronic type Microprocessor Device along with Digital Control Display Board including Control Wiring, Gland Packings including testing suitable for AC Plants of 110 TR Capacity complete all as specified and directed. Make: MCS-MAGNUM 2013 REV 8.4 10-032-N of Voltas or its equivalent.

S & F in repairs Dust Micron Filters of size 24"x24" / 24"x12" complete all as specified and as directed.

S & F in repairs Heater Coil suitable for 16TR Capacity Cold Storage complete all as specified and as directed.

S & F in repairs Digital MCS Expansion Valve Driver of Microprocessor controller system suitable for 110 TR Capacity AC Plant complete all as specified and as directed.

S & F in repairs Scroll Compressor suitable for 7.5 / 8 / 8.5 TR capacity Air Cooled Package Air Conditioner, Ductable / Split type including repairs / replacement of control wiring, connecting up all controls and refrigerant piping after necessary modifications as required for the system, pressure testing with Nitrogen Gas under constant pressure of 300 PSI for minimum 24 Hours vaccumising, Gas Charging, commissioning and checking the performance of the system complete all as specified and as directed. Make: Copeland / Danfoss / Blue Star / Voltas / York / Kirloskar / Carrier / Daikin

All as per Serial Item No. 82 above but 5 / 5.5 / 5.8 TR complete all as specified and as directed.

S & F in repairs Fire / Fresh Air Dampers suitable for AC Plants of up to 110 TR Capacity complete all as specified and as directed.

Supplying, laying and testing XLPE insulated and PVC sheathed, FRLS, armoured heavy duty underground cable, ISI marked with aluminium stranded conductor 1100 Volt grade of size 3½ Core, 240 Sq.mm cross section suitable for earthed system, laying in trenches / duct / fixed to poles / drawn through pipes / sleeving through pipe in duct, including suitable size Double compression copper stainless steel cable gland, crimping type cable lugs, sockets etc. including taking down old LT Cables of any description complete all as specified and as directed.

Excavation in trenches not exceeding 1.5m wide and not exceeding 10 Sq.m on plan area and not exceeding 1.5m deep in Soft / Loose soil for laying Cables & Pipes etc. complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick of excavated soil complete all as specified and as directed. Note: A deduction of 10% shall be made from total computed volume of filling to cater in bulk irrespective of machinery used for ramming.

Removal of excavated material [Soil] to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and as directed.

M & L for Dry River Sand cushioning over and around the cable for cable protection in trenches, levelled and punned down complete all as specified and as directed. Note: The punned down thickness shall be measured for payment.

Supply and lay Bricks, Common Burnt, Clay Building Bricks, Sub–Class "B", Designation 75 in trenches for cable protection complete all as specified and as directed.

Supplying and laying MS ERW Pipe, 50 mm bore, Heavy Grade, conforming to IS – 1239 including all fittings laid in trenches or laid in floors or fixed to walls and ceilings including testing and taking down existing MS Pipe of any description and in any position complete all as specified and as directed. Make: Surya Roshni Ltd / Tata / Jindal steel / Prakash

Supplying and laying MS ERW Pipe, 65 mm bore, Heavy Grade, conforming to IS – 1239 including all fittings laid in trenches or laid in floors or fixed to walls and ceilings including testing and taking down existing MS Pipe of any description and in any position complete all as specified and as directed. Make: Surya Roshni Ltd / Tata / Jindal steel / Prakash

Supplying and laying MS ERW Pipe, 80 mm bore, Heavy Grade, conforming to IS – 1239 including all fittings laid in trenches or laid in floors or fixed to walls and ceilings including testing and taking down existing MS Pipe of any description and in any position complete all as specified and as directed. Make: Surya Roshni Ltd / Tata / Jindal steel / Prakash

Supplying and laying MS ERW Pipe, 100 mm bore, Heavy Grade, conforming to IS – 1239 including all fittings laid in trenches or laid in floors or fixed to walls and ceilings including testing and taking down existing MS Pipe of any description and in any position complete all as specified and as directed. Make: Surya Roshni Ltd / Tata / Jindal steel / Prakash

Supplying and laying MS ERW Pipe, 125 mm bore, Heavy Grade, conforming to IS – 1239 including all fittings laid in trenches or laid in floors or fixed to walls and ceilings including testing and taking down existing MS Pipe of any description and in any position complete all as specified and as directed. Make: Surya Roshni Ltd / Tata / Jindal steel / Prakash

S & F Mild Steel work conforming to Fe - 290, Grade E-165 as in Framed Brackets of Angles or Tees with web and flanges cut to shape, drilled and counter shank for screw including bending and welding angles as necessary, gusset plates riveting etc, not exceeding 10 Kg each bracket complete all as specified and as directed.

S & F in repairs Digital Keyboard unit with Microprocessor System suitable for 23 to 45 TR capacity Central Type Air Cooled Units of make Carrier including testing complete all as specified and as directed. Make: Carrier

S & F in repairs Expansion Valve PCB suitable for 23 to 45 TR capacity Central Type Air Cooled Units including testing complete all as specified and as directed. Make: Carrier / Voltas / Blue Star

Supply and replacement of Thermostatic Expansion Valve Suitable for 5.5 to 15 TR Capacity Package AC Plants complete all as specified and as directed. Make: Carrier / Danfoss / Sporlon

Supply and charging Refrigerant Gas F-22 complete all as specified and as directed. Make: Floron / Mafron

Supply and charging Refrigerant Gas 134A complete all as specified and as directed. Make: Floron / Mafron

Supply and charging Refrigerant Gas R410A / 407 complete all as specified and as directed. Make: Floron / Mafron

Supply and filling Compressor Oil complete all as specified and as directed. Make: Veedol 68 / Sheetal N-68

Supply and filling Compressor Oil complete all as specified and as directed. Make: SUNISO P-160 / B.5.2 / BSE 32

M & L for applying two coats of synthetic enamel paint as per existing colour code by spraying machine to AC Plant of capacity [3 X 20 TR] with and including all Connected Items, Outdoor Units, Control Panel, Cooling Tower of AC Plants including preparation of surfaces by cleaning, steel wire brushing all the corroded parts and all connected parts and cleaning the surrounding area of the plant complete all as specified and as directed.

All as per Serial Item No. 105 above but of Capacity [3 X 25 TR] complete all as specified and as directed.

All as per Serial Item No. 105 above but of Capacity [3 X 40 TR] complete all as specified and as directed.

All as per Serial Item No. 105 above but of Capacity [3 X 45 TR] complete all as specified and as directed.

All as per Serial Item No. 105 above but of Capacity [3 X 110 TR] complete all as specified and as directed.

Chitturi Associates

P VENKATA RAO

SRI SURYA PROJECTS

pavantejaklimmaat enterprises