REPAIR AND MAINTENANCE OF AC PLANT AT NAD AREA UNDER GE GOMANTAK VASCO

Amount

M&L for cleaning of shell and tube water cooled condensers of the A/C plants of following capacities after dismantling the water lines and headers and cleaning with suitable wire brush and washing soda to remove the dirt and water scaling and refixing the water lines and headers including provision of new gaskets, in every 02 months etc complete all as specified and as directed.

(a) 2 x 15 TR capacity at Mag No 06

(b) 3 x 15 TR capacity at MIG-29 Wksp

(b) 3 x 15 TR capacity at Mag No 07

(d) 3 x 25 TR capacity at Mag No 03

(e) 3 x 37 TR capacity at APRE-2

(f) 2 x 50 TR capacity at Mag No 01 & 02

Supply and fix in repairs ball / roller bearing for pumps and motors of following capacity including taking down old bearing and re installation at site including testing on completion complete all as specified and as directed.

(a) Upto 10 HP capacity

(b) 25 HP capacity

Supply and charging Refrigerant compressor oil including flushing/cleaning of oil chamber etc complete all as specified and as directed.

Nitrogen testing for the any capacity of compressors including condensing unit and gas piping complete as per the manufacturer instructions and entire satisfaction of the Engineer in Charge. Note :- Nitrogen pressure should be held without any drop in pressure inside the unit continue for 24 hours.

Supply and filling Nitrogen Gas Cylinder of 7.5 cubic meter complete all as specified and as directed.

Supply and filling Refrigerant gas R-407 of 61 Kg complete all as specified and as directed.

Supply and filling Refrigerant gas R-22 of 61 Kg complete all as specified and as directed.

M&L for servicing Monoblock pumps including dismantling and opening the pump, repair/replacement of defective impeller, replace the worn out bearing impeller, stuffing box, back plates, gland packing mechanical seal and rusted nut, bolts etc assembling property, greasing all movable parts, fixing in position, testing and commissioning all as specified and as directed for the following size:-

(a) 3 HP to 5 HP Pump

(b) 7.5 HP to 10 HP Pump

Supply and fixing in repair power assembly expansion valve for following AC Plants as per existing make and model complete all as specified and as directed.

(a) Upto 30 TR AC Plant

(b) 50 TR to 74 TR AC Plant

Supply and fixing in repair Motor & Voltage Protection Device (MVPD) for AC plant as per existing make and model complete all as specified and as directed.

S & F microprocessor/PCB for compressor of capacity from 18 TR to 60 TR as per existing make/model complete all as specified and as directed.

Supply and fix of V-belt for AHU as per existing size of following AC Plants complete all as specified and as directed.

(a) 15 TR AC Plant

(b) 30 TR AC Plant

(c) 50 TR to 74 TR AC Plant

Realignment of compressor and motor of any capacity on existing foundation all as specified and as directed.

Supply and fixing CI butterfly valves with matching flanges, gaskets, hardware duly insulated with preformed pipe section fabricated to shape and bonded with adhesive. Removable cover is required valves in 26 SWG aluminium sheet, cover should be divided in to portions quick release toggles shall be used for assembly of covers complete all as specified and as directed for the following size:-

(a) 50 mm bore.

(b) 65 mm bore.

Supply and fix High pressure control switch as per existing make and type including taking down old switch complete all as specified and as directed.

Supply and fix oil pressure control switch as per existing make and type including taking down old switch complete all as specified and as directed.

Supply and fix low pressure control switch as per existing make and type including taking down old switch complete all as specified and as directed.

Supply and fix LP/HP cut out as per existing make and model including taking down old cutout for AC Plant upto 30 TR capacity complete all as specified and as directed.

All as per item No 18 here in before,but for AC Plant 50 TR to 74 TR capacity complete all as specified and as directed.

Supply and fixing power contactor assembly for upto 10 HP motor/pump complete as per existing type and make including taking down old contactor complete all as specified and as directed.

All as per item No 20 here in before, but for 25 HP motor complete all as specified and as directed

Supply and fixing Thermal Overload relay range 9 - 12.5 Amps as per existing make suitable for upto 10 HP motor/pump complete all as specified and as directed.

All as per item No 22 here in before,but 30-36 Amps

Supply and fixing electronic timer for star delta function having time range 1 - 20 sec, input voltage 380-440V AC or as per existing make and model including taking down of old one complete all as specified and as directed.

All as per item No 24 here in before, but 3 - 60 sec.

Supply and fixing indicator lamp assembly set complete LED type suitable for the existing system supply voltage 230V / 440 V AC including taking down old lamp assembly complete all as specified and as directed.

Supply and fixing push button assembly complete LED type suitable for the existing system supply voltage 230V / 440 V AC including taking down old push button assembly complete all as specified and as directed.

Dismantling the unserviceable electric motor any type or of any capacity and transporting to reputed workshop, taking out old and burnt winding wire and rewinding with super enamelled copper winding wire of existing gauge and size with insulating materials, varnishing and baking etc, re-fixing the same at site and re-alignment, testing and commissioning complete all as specified and as directed.

Taking out old and fix new PVC fins of cooling tower of any capacity AC plant and replacing with new one including setting complete all as specified and as directed.

Supply and fixing in repair AHU filter having Pre filter efficiency of 90% and filtration level of 10 microns made out of GI channel frame overall size 55 cm x 55 cm x 5 cm including nylon micro filter and wire mesh covered front and back all as per sample given including taking down old micro filter complete all as specified and as directed.

Supply and fixing in repair HEPA (High Effective Particulate Air) Filter of existing dimension with aluminium frame having flow capacity of 500 cfm and DOP efficiency of 99.99% complete all as per existing including taking down old filter complete all as specified and as directed.

M&L for preparation of old painted surfaces by removing dust, rust etc and, applying two coats of synthetic enamel paint with spray gun of approved make and colour for cooling tower, condensing pipe line condenser water pumps including all pipe line valves etc. of 5 TR to 60 TR Capacity AC Plant complete all as specified and as directed.

Supply and fix CT fan (with hub and fan blade) of capacity 5 to 10 HP for cooling tower all as specified and as directed.

S & F in repair chilled water sensor for AC Plants of any capacity complete all as specified and as directed.

S & F solenoid valve assembly complete for compressor of capacity upto 30 TR complete all as specified and as directed.

S & F solenoid valve assembly complete for compressor of capacity from 50 TR upto 74 TR complete all as specified and as directed.

S & F loading/unloading switch assembly for compressor of capacity upto 30 TR complete all as specified and as directed.

S & F loading/unloading switch assembly for compressor of capacity from 50 TR upto 74 TR complete all as specified and as directed.

S & F cooling tower nozzles 1/4'' size of existing model complete all as specified and as directed.

S & F block bearing for air handling unit size 207 of existing model complete all as specified and as directed.

Supply and fix pressure relief valve as per existing make and model complete all as specified and as directed.

Supply and fix Cold room humidity sensor as per existing make and model complete all as specified and as directed.

Supply and fix Cold room strainer as per existing make and model complete all as specified and as directed.

Supply and fix solder tube union (with valve core & copper tube) as per existing size complete all as specified and as directed.

Supply and installation of FRP RECTANGULAR SHAPE INDUCED DRAUGHT COOLING TOWER, vertical, counter flow with uniform water distribution and optimal heat transfer, suitable for 30 TR AC plant capacity, having tough fiberglass reinforced plastic (FRP) casing of sufficient structural strength to withstand vibrations and wind velocity upto 60 m/s, FRP basin, rigid honeycomb type PVC fill of suitable thickness, SS sprinklers and non-clogging sprinkler pipes, FRP drift eliminator, fixing the motor and fan from the existing old cooling tower to new cooling tower and testing on completion complete including dismantling of old one all as specified and as directed.

Supply and installation of FRP RECTANGULAR SHAPE INDUCED DRAUGHT COOLING TOWER, vertical, counter flow with uniform water distribution and optimal heat transfer, suitable for 50 TR AC plant capacity, having tough fiberglass reinforced plastic (FRP) casing of sufficient structural strength to withstand vibrations and wind velocity upto 60 m/s, FRP basin, rigid honeycomb type PVC fill of suitable thickness, SS sprinklers and non-clogging sprinkler pipes, FRP drift eliminator, fixing the motor and fan from the existing old cooling tower to new cooling tower and testing on completion complete including dismantling of old one all as specified and as directed.

Dismantling the compressor and taking out the shaft from the compressing unit and taking to the reputed workshop for necessary lathe/ machining work to match the bearing size, cleaning inside the compressing unit and necessary overhauling including replacement of defective parts complete as directed installation of compressor and connect with motor, alignment and carrying out of testing to the entire satisfaction of Engineer-in-Charge for 30 to 48 TR AC plant compressor complete all as specified and as directed. Note : The rate quoted should be including defective spares required to be replaced.

Supply only spare for 3x15 TR capacity compressor

(a) Main bearing for both ends

(b) Connecting rod bearing

(c) C R bush

(d) Pistons

(e) Pistons pin

(f) Piston ring set

(g) Piston circlips

(h) C R Nuts & bolts

(j) S V Reeds

(k) D V Reeds

(l) S V Springs

(m) D V Spring

(n) Suction filter dryer.

(o) Oil pump

(p) Linear o ring

(q) Gasket set

(r) Thrust washer

(s) Aluminium Gasket set

(t) Rocker arm with cup & washer

(u) Oil pressure regulating valve

(v) Rocker arm spring

(w) Suction and discharge valve O ring set

M&L for assembly and erection of GI sheet with TDF flange 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 complete of size 22 gauge complete all as specified and as directed.

All as per item No 49 here in before, but 24 gauge complete all as specified and as directed.

M&L for providing acoustic lining to the ducting by using FG crown 200x25mm thick rigid board density 32kg/m3 covered with RP tissue & 28G aluminium perforated sheet & using GI nuts, bolts & washer for the entire duct complete all as specified and as directed.

M&L for thermal insulation of duct using adhesive & FG crown-150 factory laminated covered with aluminium foil of 50mm thickness complete all as specified and as directed.

Supply and fixing humidistat including all accessories as per existing complete all as specified and as directed.

Supply and fix hermatically sealed compressor for AC plant up to 12.5 TR capacity including all accessories complete all as specified and as directed.

Repair and maintenance of AC plant heater including internal wiring and replace of any part of internal body all as specified and as directed.

Supply only Digital touch screen with backlight temperature, humidity monitor complete all as specified and as directed.

Heat Control

BRITE INDUSTRIES

Shine Enterprises