REPAIR REPLACEMENT OF SUMMER COOLING APPLIANCES AND MAINTENANCE OF AC PLANT ALONGWITH CONNECTED ITEMS UNDER GE NAGROTA

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 04 moths etc complete all as specified and directed

52 TR capacity at Signal Center

52 TR capacity at OPS Room

15 TR capacity at 4 ASD

Supply and charging compressor oil Servo manufactured by Indian Oil Corporation or Equivalvent approved make including flushing/cleaning of oil chamber etc complete all as specified and directed by Engr-in-Charge

Nitrogen testing for the ANY capacity of compressors including condensing unit and gas piping complete as per the manufacturer instructiions and entire satisfaction of the Engineer in Charge. Note :- (i) Nitrozen pressure should be held with out any drop in pressure inside the unit continue for 24 hrs after leakage testiing reqired gas will be fill and satisfaction of the Engineer in Charge complete all as specified and directed

Supply and filling Nitrogen Gas Cyllinder of 61 Kg Each returnable cyllinder complete all as specified and directed

Supply and filling Refrigerant gas R-407 of 61 Kg Each Cyllinder for AC plant compressor complete all as specified and directed

Supply and filling Refrigerant gas R-22 of 61 Kg Each Cyllinder for AC plant compressor complete all as specified and directed

M&L for servicing monoblock pumps including dismantling and opening the pump, repair/replacement of defective Ball Bearing,Roller Bearing .impeller,replace the worn out bearing impeller, stuffing box, back plates, gland packing mechincal seal and rusted nut, bolts etc assembling property , greasing all movable parts, fixing in position, testing and commissioning all as directed for uo To 5 HP pumps. complete all as specified and directed

All as Ser No 7 but upto 7.5 to 10 HP

All as Ser No 7 but upto 10 to 15 HP

Supply and fixing in repair power assembly expansion valve for up 52 TR AC palnt at EHU / ERS Model SVE 42 complete all as specified and directed Make –SPORLAN or equivalent as per the existing.

Supply and fixing in repair MVPD for up to 52 TR TR capacity at Old AC plant Model equivalent as per the existing. complete all as specified and directed

Suuply and fix of V-belt size C 2650/ C-102 including taking down old belt . complete all as specified and directed

All as per item No-10 above but of size B-112 .

All as per item No-10 above but of size B- 82.

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

Supply and fixing of 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 26swg aluminium sheet,cover should be divided in to portions quick release toggles shall be used for assembly of covers complete all as specified and directed ..

50 mm bore.

65mm bore.

Supply and fix High pressure control switch type MP-5 including taking down old switch as per existing make complete all as specified and directed .

Supply and fix oil pressure control switch type MP-55 including taking down old switch. as per existing make complete all as specified and directed .

Supply and fix low pressure control switch type MP-01 including taking down old switch. as per existing make complete all as specified and directed .

Supply and fix LP/HP cut out type MP-15 inlcuding taking down old cutout. as per existing make complete all as specified and directed .

All as per item No - 18 but type ML-4 Make –as per existing make complete all as specified and directed .

All as per item No - 18 but type ML-3 as per existing make complete all as specified and directed .

All as per item No - 18 but type ML-2 as per existing make complete all as specified and directed .

All as per item No - 18 but type ML-1.5 as per existing make complete all as specified and directed .

Supply and fixing power contract assembly complete MNX-25 as per cat No CS 94110 complete all as specified and directed . Make – L & T or equivalent make including taking down old contactor

Supply and fixing in replacement power contract assembly complete MNX-12 with one NO and NC as per Exixting Make – L & T or equivalent make in Schneider/ legrand

Supply and fixing in replacement power contract assembly complete MNX 32 Make as per existing make complete all as specified and directed .

Supply and fixing in replacement spare Kit wihtout coil type MU-1 .as per existing make complete all as specified and directed .

All as per item No - 26 but type ML-1.5 as per cat No SS91851 . Make – AS per existing make complete all as specified and directed .

All as per item No - 26 but type ML-2 as per AS per existing make .complete all as specified and directed .

All as per item No - 26 type ML-3 as per existing make complete all as specified and directed .

All as per item No - 26 but type ML-4 as per existing make complete all as specified and directed .

Supply and fixing Overvload relay range 9-15 amps . Make –AS per existing make suitable for ML-1/ML-1.5 contactor complete all as specified and directed .

Supply and fixing Overvload relay range 20-33 amps . Make –AS per existing make suitable for ML-2/ML-3 contactor complete all as specified and directed .

Supply and fixing Overvload relay range upto 7.5 amps . Make –AS per existing make suitable for MNX contactor complete all as specified and directed .

Supply and fixing electronic timer ST 100 (3 to 10 Sec) 240V or as per existing .Make –AS per existing make including taking down of old one. complete all as specified and directed .

Supply and fixing electronic timer ST 100 ST 100 (3 to 30 Sec) 415 Volts AC 50 HZ . Make- L Make –AS per existing make as GIC suitable to the existing panel board inlcuding taking down of old one.complete all as specified and directed .

Supply and fixing indicator lamp assembly complete LED type suitable for the existing system supply voltage for the existing system supply voltage 230V / 440 V AC including taking down old lamp assembly complete all as specified and directed . Make – Mimic control/AEC/C&S.

Supply and fixing in repair of MCCB 3 pole 415 volts AC , 250 Amps breaking capcity 25 KA complete all as specified and directed . ,

Supply and fixing in repair of MCCB 3 pole 415 volts AC , 40 Amps breaking capcity 25 KA complete all as specified and directed .,

Supply and fixing in repair of MCCB 3 pole 415 volts AC , 32 Amps breaking capcity 25 KA complete all as specified and 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 enameled 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 directed by Engr-in-Charge

Taking out old and unserviceable PVC fins of cooling tower of any capacity AC plant and replacing with new one including setting complete .Make : Mihir or equivalent

Supply and fix in repair in repair DOL starter suitable for 5HP motor capacity 9 to 14 Amp complete with over load relay , single phasing preventer under volt release etc Make L&T or equivalent in Schneider / Havells.

Supply and fix in repair in repair DOL starter suitable for 10 HP motor capacity 14 to 23 Amp complete with over load relay , single phasing preventer under volt release etc Supply and fix Make L&T or equivalent make as Schneider / Havells.

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 Plant.complete all as specified and directed .

Supply and fix CT fan (with hub and fan blade) of capasity 5 to10 HP for colling tower complete all as specified and directed

S & F in repair chilled water sensor for AC Plants of up to 52 TR capacity complete all as specified and directed by Engr-in-Charge

S & F solenoid valve assembly complete for compressor of capacity upto 15 TR. complete all as specified and directed

S & F solenoid valve assembly complete for compressor of capacity from upto 52 TR.complete all as specified and directed .

S & F loading/unloading switch assembly for compressor of capacity upto 15 TR.complete all as specified and directed

S & F loading/unloading switch assembly for compressor of capacity from upto 52 TR.complete all as specified and directed .

S & F microprocessor for compressor of capacity upto 15 TR of existing model complete all as specified and directed .

S & F microprocessor for compressor of capacity from 52 TR of existing model complete all as specified and directed .

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

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

Dismantling the compresor 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 compresing unit and necessary overhauling complete as directed .Installation of compressor and connect with motor , alingment and carrying out of testing to the entire satisfaction of Engr-in-charge complete all as specified and directed . for the following compressor model :- Note : defective Spares required to be replaced shall be measured and paid seperately under appropriatre items of this schedule.

3 X 7.5 TR capacity at 4ASD

Supply in replacement for 3 X 7.5 TR capacity at 4ASD

Main bearing ( U/S upto 0.5 mm) for both ends

Connecting rod bearing

C R bush

pistons

Pistons pin

Piston ring set

Piston circlips

C R Nuts & bolts

S V Reeds

D V Reeds

S V Springs

D V Spring

Suction filter drayer.

Oil pump

Linear o ring

Gasket set

Thurst washer

Aluminium Gasket set

Rocker arm with cup & washer

Oil pressure regulating valve

Rocker arm spring

Suction and discharge valve O ring set

S & F in repair water Flow Gauge Meter for AC Plants of any capacity complete all as specified and directed .

S & F in repair Oil Pressure Gauge Meter for AC Plants of any capacity complete all as specified and directed .

S & F in repair Refrigerant Gas Pressure Gauge Meter for AC Plants of any capacity complete all as specified and directed .

Supply and fixing of 13 TR semisealed/sealed compressor with modification to existing system including testing complete all as specified and directed . Make Kirloskar, Brite,

Repair and maintenance of AC plant heater incliding internal wiring and replace of any part of internal body all as specified and as directed by Engr-in-charge.

Material and Labour for servicing of following appliances comprising of through cleaning, lubricating of all moving parts, replacement of wornout screws, bolts etc to make the unit for smooth operation for the following capacity of water cooler / refrigerator complete all as specified and directed . :-

Water coolers 40 to 150 ltrs cooling capacity.

Refrigerator of 165 to 310 ltrs capacity.

Deep Freezers any capacity

Supply and replace compressor sealed unit of the following appliances of any make complete including replacement of copper tubing/capillary strainer etc, testing and commissioning all as specified and as directed by Engr-in-Charge.

Water coolers of capacity up to 150 liters.

Refrigerators of capacity 210 to 310 ltrs.

Deep freezers 200 to 300 ltrs capacity.

Supply and replace starting relay suitable for :- Make : as per exiting make complete all as specified and directed

Water coolers 40 to 150 ltrs cooling capacity

Refrigerator of 165 to 310 liters capacity.

Deep freezers of 200 to 425 ltrs capacity.

Supply and replace thermostats of :-Make : as per exiting make complete all as specified and directed

Water coolers 40 to 150 ltrs cooling capacity.

Refrigerator of 165 to 310 ltrs capacity.

Deep freezers of 200 to 325 ltrs capacity.

Supply and charging refrigerant gas R-22/R-134 (A) up to required level incl connected works like pressure testing with nitrogen before filling refrigerant gas including leakage testing if any complete all as specified and directed by Engr-in-Charge

Water cooler 40 ltr cooling cap.

Water cooler 80 ltr cooling cap.

Water cooler 150 ltrs cooling cap

Deep freezers of any capacity.

Refrigerators of any capacity.

Supply and replace condenser unit of the following appliances including making of all connections as specified and directed by Engr-in-Charge. Make : as per exiting make

Water coolers 40/60 ltrs capacity.

Refrigerator r of 165 to 195 ltrs capacity.

Deep freezers of 200 to 300 ltrs capacity.

Supply and replace top cover gasket of water cooler 40 to 150 ltrs capacity complete all as specified and directed

Supply and replace overload protector of :-Make : as per exiting make

Water coolers/ Refrigarator upto 150 ltrs cooling capacity.

Deep freezers of upto 425 ltrs capacity.

Supply and replace blower/condenser fan motor complete with necessary mounting bracket to and base frames for :-Make : as per exiting make complete all as specified and directed

Water coolers of any make and cap 40 to 150 ltrs capacity.

Deep freezers of any make & cap 200 to 300 ltrs capacity.

Supply and charging refrigerant gas R-22/R-134 (A) up to required level incl connected works like pressure testing with nitrogen before filling refrigerant gas complete all as specified and directed by Engr-in-Charge. Make Paragon,Mefron (Note : Above second floor contractor will arrange crain / scaffolding with safety device)

Window type room air conditioners of capacity 1.5 Ton.

Split type AC 1.5/2.0 Ton capacity

M&L for servicing of following appliances comprising of through cleaning, lubricating of all moving parts, replacement of wornout screws, bolts etc to make the unit for smooth operation for :-(Note : Above second floor contractor will arrange crain / scaffolding with safety device) complete all as specified and directed .

Window type room air conditioners of capacity 1.5 Ton cap.

Split type AC 1.5/2 Ton capacity.

Supply and replace compressor sealed unit of the following appliances of any make complete including replacement of copper tubing/capillary strainer etc, testing and commissioning all as specified and as directed by Engr-in-Charge.

Window type air conditioners of capacity 1.5 /1 Ton.

Split type AC 1.5/2.0 Ton capacity.

Supply and replace capacitors of the following capacities for ACs Make :Siemens,epcos

45+6 Mfd Seven Pin

Supply and replace starting relay suitable for complete all as directed by Engr-in-Charge for the following

Window type room air conditioners of capacity 1/1.5 Ton cap.

Split type AC 1.5/2 Ton capacity

Supply and replace thermostats complete all as directed by Engr-in-Charge. Make Danfoss,Annapooma

Window type room air conditioners of capacity 1/1.5 Ton cap.

Split type AC 1.5/2 Ton capacity.

Supply and replace oeverload protector of :- Make Usha,Annapooma complete all as specified and directed

Window type room air conditioners of capacity 1/1.5 Ton cap complete all as specified and directed .

Split type AC 1.5/2 Ton capacity.

Supply and replace condenser unit make of copper of the following appliances including making of all connections as specified and directed by Engr-in-Charge

Window type room air conditioners of capacity 1/1.5 Ton capacity.

Split type AC 1.5/2 Ton capacity.

Supply and replace metal clad/sheet metal plug and socket with a 2 pin and earth plug and 20 Amps SP MCB complete including making all connections. complete all as directed by Engr-in-Charge.

Supply and replace contact unit of split type air conditioning of 1.5/2 Ton cap complete all as directed by Engr-in-Charge.

Supply and Install automatic copper wound voltage stabilizer for low and high voltage correction equipped with electronic transistorised relay suitable for connection on single phase 50 HZ AC supply, designed for input voltage of 90 to 290 V and output voltage stablized at 215 to 240 V of Capacity 3 KVA complete with digital voltmeter and ammeter with time delay relay of 2-3 Minute complete all as specified and Directed by Engr in-charge. Make: V-Guard/Microtech/Electric Field/AE

Supply And Fix with repair of defective burnt motor from unit and testing all as directed for the following;-

Window type AC of any make capacity 1/1.5 Ton cap.complete all as directed by Engr-in-Charge.

Split type AC of any make and capacity 1.5/2 ton. complete all as directed by Engr-in-Charge.

Supply and fix insulation for copper tubes of split type AC units,insulation type superion of sizen 3/8"diameter complete all as directed by Engr-in-Charge.

Supply and fix insulation for copper tubes of split type AC units,insulation type superion of sizen 5/8"diameter complete all as directed by Engr-in-Charge.

Supply and fix in repairs copper tubing soft grade suitable for split type AC suction /discharge line of size 5/8" diametercomplete all as directed by Engr-in-Charge.

Supply and fix in repairs copper tubing soft grade suitable for split type AC suction /discharge line of size 3/8" diameter complete all as directed by Engr-in-Charge.

Supply and fix PCB cercuit board complte suitable for 1.5/2.0 ton capacity split type air conditioneer complete all as directed by Engr-in-Charge.

Supply and fix PCB cercuit board complte suitable for 1.5/2.0 ton capacity Window type AC complete all as directed by Engr-in-Charge.

Supply and fix in repair Remote of any size and capacity of split AC . complete all as directed by Engr-in-Charge.

Supply in replacement of indoor colling unit 1.5 Ton capacity copper tubing with rotary fan suitable of existing make with suitable remote complete all as directed by Engr-in-Charge.

S&F in replacement of desert cooler 1350 Rpm capacity motor with fan blade of existing make with all arrangement complete all as directed.

Replacement of water circulation submersible pump of desert cooler suitable for operation on AC supply single phase 230/250 volts 50 Hz. complete all as directed by Engr-in-Charge.

Taking out existing old wood wool pads from desert coolers and S&F wood wool pads with nylon threads suitable for any make of desert cooler having minimum/maximum capacity 3000 cum/hr and 5000 cum hrs including S&F PVC insulated protective guards for holding the wood pads complete all as specified and as directed.

Replacement of PVC water distribution system 4 way suitable for 3000/4000 Cum/Hrs of desert coolers complete with PVC Elbow, PVC Pipe (distribution system to side panel with elbow at end ) heavy duty 15mm dia all as directed.

Replacement of unserviceable side panels with wood wool 2" thick for desert cooler made out of 22 gauge plane GI sheet of existing size of desert cooler complete. (Each Set Of Three Panels) complete all as directed by Engr-in-Charge.

Painting of desert coolers in side out side at site of work with two coats of synthetic enamel paint grey or any other shade (as approved) from out side complete including shutters top, bottom with spray painting machine and in side with black anti – corrosive paint (two coats) complete all as specified and directed.

Taking down old split/ window type Air Conditioner of any capacity and reinstalled at new location after completing serviceing including Making good disturbed surfaces by means of using sand, cement etc. complete all as specified & directed

Sub main wiring with two single core FRLS PVC insulated unsheathed 1100 volts grade cable with stranded copper conductor of size 4 Sq mm drawing through and including concealed rigid non metallic PVC conduit medium grade ISI marked 25 mm dia including one single core FRLS PVC insulated unsheathed 1100 volts grade cable with stranded copper conductor of size 4.0 sq mm as earth continuity conductor connected to commen earth and earth dolly complete

Supply and fixing FRP cooling tower complete with water proof fan motor, revolving unit with spray nozzle of capacity 15 TR AC plant at 4 ASD complete all as specified and as directed by Engr-in-Charge.

Supply and fix reciprocating open type compressor SMC 2-65 Accel compressor complete with pump guage panel, crank case heater , suction and discharge valve complete all as specified and as directed by Engr-in-Charge.

Supply in replacement of outdoor colling unit of split type AC 1.5 Ton capacity of existing make with copper tubing ,heavy duty compressor complete all as directed by Engr-in-Charge.

Supply and Install automatic copper wound voltage stabilizer for low and high voltage correction equipped with electronic transistorised relay suitable for connection on single phase 50 HZ AC supply, designed for input voltage of 90 to 290 V and output voltage stablized at 215 to 240 V of Capacity 5 KVA complete with digital voltmeter and ammeter with time delay relay of 2-3 Minute complete all as specified and directed . Make: V-Guard/Microtech/Electric Field/AE

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