REPAIR /MAINT OF AC PLANT, CHILLERS /CONDENSER MOTOR, COOLING TOWER, DESCALING OF CONDENSER AND OTHER RELATED WORKS AT GE (AF) SURATGARH

Amount

Servicing including cleaning and washing of micro filters of AHU of below given capacity up to the satisfaction of Engineer In Charge including any other minor repair needed in AHU. Any broken filter shall be replaced with new one and same shall be paid under relevant respective items.

Up to 10000 CFM

Above 10000 CFM to 20000 CFM

Servicing, cleaning of cooling tower with one or two as per existing size , water basin and makeup tank with the help of chemical and nylon brush, removing and refixing of PVC finches after washing, cleaning of condenser pipe line( in let and out let) including painting of out side of cooling tower with inlet and outlet pipe line with one coat synthetic enamel paint of colour approved by engr in charge and inside painting of water tank of cooling tower used water proof black Japan paint one coat including changing of unserviceable PVC guard, water distributor, PVC pipe etc complete for the satisfaction of the Engr in charge of the following capacity of the AC plants at different locations complete all as specified and as directed

Up to 30 TR

Above 30 TR to 60 TR

More than 60 TR

Removing old unserviceable port Y type strainer and material and labour for Y type strainer 150mm size of both end flanged including supply and welding flange of size 150mm two nos( if required) complete all as specified

Removing old unserviceable port Y type strainer and material and labour for Y type strainer 100mm size of both end flanged including supply and welding flange of size 100mm two nos ( if required) complete all as specified

Removing old unserviceable port Y strainer and material and labour for Y strainer 80mm size of both end flanged including supply and welding flange of size 80mm two nos ( if required) complete all as specified

Removing old unserviceable port Y strainer and material and labour for Y strainer 65mm size of both end flanged including supply and welding flange of size 65mm two nos ( if required) complete all as specified

Taking down old unserviceable butter fly valve and material and labour for butter fly valve with rubber packing of size 150 mm complete all as specified and directed.

Taking down old unserviceable butter fly valve and material and labour for butter fly valve with rubber packing of size 100 mm complete all as specified and directed.

Taking down old unserviceable butter fly valve and material and labour for butter fly valve of size 80 mm complete all as specified and directed.

Taking down old unserviceable butter fly valve and material and labour for butter fly valve with rubber packing of size 65 mm complete all as specified and directed.

Taking down old unserviceable butter fly valve and material and labour for butter fly valve with rubber packing of size 40 mm complete all as specified and directed.

Taking down old unserviceable pressure gauge supply and fixing testing of pressure gauge of 0 to 100 PSI complete all as specified and directed.

Taking down old unserviceable AHU micro filters of any size and supply, fixing, testing and commissioning of new micro filters of existing size for any capacity AHUs complete all as specified and as directed by Engineer in charge.

Taking down old unserviceable/ torn out canvas cloth of any size and supply, fixing and testing of new canvas cloth for making connection between AHU and Duct suitable for any capacity AHU complete all as specified and as directed by Engineer in charge.

Taking down old unserviceable motor pump coupling set of any size and supply, fixing, testing and commissioning of new motor pump coupling complete set along with rubber star coupling suitable for any capacity centrifugal pump set complete all as specified and as directed by Engineer in charge.

Taking down old unserviceable motor pump coupling's star rubber of any size and supply, fixing, testing and commissioning of new motor pump coupling's star rubber set suitable for any capacity centrifugal pump set complete all as specified and as directed by Engineer in charge.

Preparation of old painted surface of MS pipes and painting with one coat of synthetic enamel paint, as per colour code given by the deptt , complete all as specified and as directed by Engineer-in-Charge. (Note :- The rates includes for writing and marking description of pipes with white enamel paint)

Taking down old unserviceable electric strip heater and Supply, installation, testing and commissioning of electric strip heater of 3 KW complete all as specified and as directed.

Identification of breakdown of any type of AC Plants of any capacity and rectify the same with proper record mentioning time date and nature of defect duly signed by JE E/M and AGE E/M Notes for item No-1:- (1.) Spares required for major repair will be paid separately. (2.) Contractor will produce the register at the time of payment.

Taking down old unserviceable cooling tower motor's cover/ umbrella of any size and supply, fixing and testing of new metallic cover of cooling tower motor for protection of motor from rain for any capacity cooling tower all as specified and as directed by Engineer in charge.

S&F PVC float valve high pressure with polythene float and fly nut complete screwed PVC pipe and fixed in 20mm/25mm dia bore pipe including taking down old unserviceable Float valve.

S&F low pressure switch/ high pressure switch of existing make and specifications including removing of refrigerant in empty cylinder and checking of pressure testing leak testing vacuum the system, charging the refrigerant in the system complete all as specified and as directed by the engr in charge.

S&F chilled water sensor as per existing specifications and make complete all as specified and directed by engr in charge

Removing old unserviceable PVC fills supply and lying of PVC fills of size 300mmx200mmx150mm complete all as specified and as directed.

Taking down old unserviceable fan motor with fan blade of any size and supply and fixing, testing and commissioning of new fan motor along with fan blade of existing shape, size suitable for below given cooling tower capacities complete all as specified and as directed.

Up to 50 TR

More than 50 TR.

Taking down old unserviceable water sprinkler/ distribution system of any size and supply and fixing, testing and commissioning of new complete water sprinkler/ distribution system along with all connected accessories of existing shape, size suitable for below given cooling tower capacities complete all as specified and as directed. Note : Pipes shall be of thread type not shall be joined by solution but joined by screwing thread.

Up to 50 TR

More than 50 TR.

supply & fixing in repair of controller with digital display as per existing specifications and make suitable for below given capacities Central/ Package type AC unit complete all as specified and as directed. Note : This item includes complete controller including all connected relay, registers, inductors equipments to make controller functional.

Up to 24 TR

Above 24 TR to 60 TR

Above 60 TR to 75 TR

M&L for arresting of leakage in copper tube of heat exchanger of AHU and chiller unit by first detecting & locating the number of leaks using an appropriate procedure(i.e soap solution or nitrogen ) & arresting the leakage by spot brazing of the tubes on site and then recheck the leakage through pressure test by nitrogen gas to the complete satisfaction of engr-in-charge

Taking down old unserviceable gate valve and material and labour for gate valve with rubber packing of size 25 mm complete all as specified and directed.

Supply and charging of Refrigerant R-407 C in sealed container of 45/60 kg complete all as specified Note: Contractor will have to use sealed container and have to show weight of container before and after gas charging, so that exact weight of gas can be calculated.

Removing old unserviceable thermal insulation and Supply and insulation of thermal insulation on ducts/chiller pipe line exposed to sun light using closed cell O nitrile rubber elastomeric insulation minimum thickness 20mm and recommended rubber based adhesive/ tapes complete as per specifications.

Supply and fixing in replacement acoustic insulation of pipe line with glass wool having thickness 25 mm resin bonded fiber glass, of 48 kg/cum density, covered with and 28 G Aluminium perforated sheet all as specified.

M&L for replacement of Earthling complete with galvanized iron or steel plate electrode 600 mm x 600 mm x 6.00 mm thick buried directly in ground vertically in pit of depth not less than 2.25 meter below normal ground level with top edge of the earth plate at a depth not less than 1.5 meter below normal ground level surrounded from all sides with mixture of charcoal and common salt in alternate layers and electrode connected to galvanized iron strip 32 x 6 mm dia as earthling lead by means of GI bolts, nuts, check nuts and washers, earth strip protected by galvanized steel pipe 40 mm bore (light grade) connected to machinery/equipment all as shown in electrical plate No. 3 of SSR-2010 Part I and including necessary excavation and earth work in any type of soil, 20mm bore light grade GI pipe for watering, funnel, wire mesh, PCC (1:3:6) type C-1 chamber, PCC (1:2:4) type B-1 reinforced with 6 mm dia MS round bars @ 15 cm c/c both ways for cover 50 mm thick and MS frame of suitable size made of angle iron 50 x 50 x 60 mm, complete all as specified. Note :- (i) The unit rate includes earth lead and protection pipe up to maximum 7.5 meter from earth plate to earth point/test point. (ii) Earth pit shall be constructed minimum 0.5 meter away from existing earth.

Taking down old unserviceable Air vent valve 15/20 mm and supply and fixing testing of air vent valve 15 mm complete all as specified and as directed .

Taking down old unserviceable MCCB of any capacity and Supply, Fixing, testing of MCCB 4 Pole, 415 V, 160 Amps with breaking capacity 36 KA.

Taking down old unserviceable MCCB of any capacity and Supply, Fixing, testing of MCCB 4 Pole, 415 V, Adjustable type, 200 Amps with breaking capacity 36 KA.

Taking down old unserviceable MCCB of any capacity and Supply, Fixing, testing of MCCB 4 Pole, 415 V, Adjustable type, 250 Amps with breaking capacity 36 KA.

Taking down old unserviceable MCCB of any capacity and Supply, Fixing, testing of MCCB 4 Pole, 415 V, Adjustable type, 350 Amps with breaking capacity 36 KA.

S&F, testing and commissioning power contactor of given specification and make used for running of AC unit's compressor or any other motor used for pumps, AHU blowers, cooling towers etc of below given capacities complete all as specified and as directed by engr in charge.

Up to 15 Ampere.

Above 16 A to 30 A.

Above 30A to 60 A.

M&L in replacement for control wiring with single core copper cable of size 1.5 sqmm for main panel of AC plant, AC unit panel, AHU panel etc all as specified and directed.

S&F compressor motor protection relay supply AC voltage 230 V, 50 Hz of existing sample as per site requirement complete all as specified and directed by engr in charge. ( Loc Igloo, 155 HU)

S&F in replacement over load relay 6 to 15 complete all as specified and directed by engr in charge

S&F single phase preventer relay of existing sample as per site requirement complete all as specified and directed by engr in charge.

M&L for replacement of control wiring of AHU or AC Plant panel with suitable copper conductor with all necessary connections all as specified and directed by engr-in-charge

Disconnecting, dismantling the defective three phase induction motor 415 Volts 50 Hz of any RPM for following capacities, Servicing and re-winding with super enameled copper wire of best quality of existing size/gauge and weight including replacement of insulation material, varnish bearing connection plate and all other petty items required to make the motor is functional and reassembling the motor including installation commissioning and testing on full load all as specified and as directed.

for motor of capacity up to 5 HP.

for motor of capacity 5 HP to 10 HP.

Disconnecting dismantling of centrifugal/ monoblock pump set of following capacities of any RPM and dismantling defective parts such as impeller nut,glant,impeller key,gland packing water deflector bush bearings sleeve,gaskets,volute stud a and nuts suction and delivery flange and stud and nuts and all other petty items required to make the pump set is functional and reassembling the pump set including installation commissioning and testing all as specified and as directed

for pump of capacity up to 5 HP.

for pump of capacity 5 HP to 10 HP.

Material and labour for fan belt for using of AHU Motor,Package unit,any size any plant of compressor complete all as specified and as directed.

Supply, Laying and testing MS pipes heavy grades (ERW steel) including cutting, bending and welding as per site requirement and specials with flanged and drilled ends, jointing materials like nuts, bolts and gasket etc of nominal dia 150 mm as per IS 1239 (1981) fixed in replacement of existing u/s complete by cutting road and footpath and making surface good as previous all as specified and directed.

Supply, Laying and testing MS pipes heavy grades (ERW steel) including cutting, bending and welding as per site requirement and specials with flanged and drilled ends, jointing materials like nuts, bolts and gasket etc of nominal dia 100 mm as per IS 1239 (1981) fixed in replacement of existing u/s complete by cutting road and footpath and making surface good as previous all as specified and directed.

Supply, Laying and testing MS pipes heavy grades (ERW steel) including cutting, bending and welding as per site requirement and specials with flanged and drilled ends, jointing materials like nuts, bolts and gasket etc of nominal dia 80 mm as per IS 1239 (1981) fixed in replacement of existing u/s complete by cutting road and footpath and making surface good as previous all as specified and directed.

Supply, Laying and testing MS pipes heavy grades (ERW steel) including cutting, bending and welding as per site requirement and specials with flanged and drilled ends, jointing materials like nuts, bolts and gasket etc of nominal dia 65 mm as per IS 1239 (1981) fixed in replacement of existing u/s complete by cutting road and footpath and making surface good as previous all as specified and directed.

Supply, Laying and testing MS pipes heavy grades (ERW steel) including cutting, bending and welding as per site requirement and specials with flanged and drilled ends, jointing materials like nuts, bolts and gasket etc of nominal dia 50 mm as per IS 1239 (1981) fixed in replacement of existing u/s complete by cutting road and footpath and making surface good as previous all as specified and directed.

Supply, Laying and testing MS pipes heavy grades (ERW steel) including cutting, bending and welding as per site requirement and specials with flanged and drilled ends, jointing materials like nuts, bolts and gasket etc of nominal dia 40 mm as per IS 1239 (1981) fixed in replacement of existing u/s complete by cutting road and footpath and making surface good as previous all as specified and directed.

Supply, Laying and testing MS pipes heavy grades (ERW steel) including cutting, bending and welding as per site requirement and specials with flanged and drilled ends, jointing materials like nuts, bolts and gasket etc of nominal dia 32 mm as per IS 1239 (1981) fixed in replacement of existing u/s complete by cutting road and footpath and making surface good as previous all as specified and directed.

Supply, Laying and testing MS pipes heavy grades (ERW steel) including cutting, bending and welding as per site requirement and specials with flanged and drilled ends, jointing materials like nuts, bolts and gasket etc of nominal dia 25 mm as per IS 1239 (1981) fixed in replacement of existing u/s complete by cutting road and footpath and making surface good as previous all as specified and directed.

Up to 15 TR Capacity.

above 15 TR to 30 TR Capacity

above 30 TR to 50 TR Capacity

above 50 TR to 75 TR Capacity

Excavation in trenches loose/soft soil not .exceeding 1.5 mtr wide and not exceeding 1.5 mtr depth for foundations, laying water mains, pipes, cables, etc getting out and forming bottom surface to required gradient complete all as specified

Returning filling in incl spreading leveling, watering and well ramming in layer not less than 25 cum each layer all as specified.

Removing excavated material to a distance not exc 50M and depositing where directed at a level n.exc 1.5 mtr above the starting point complete all as specified

M&L for Gl sheet metal ducts made of Gl sheet of Class -VIII as per IS -277 of following thickness for supply air ducting as per IS - 655 and as required by the specifications for 24 gauge galvanised sheet steel complete.

Supply and fixing in replacement of old unserviceable earth continuity conductor of size 25X4 mm galvanised iron strip along with all necessary jointing material as directed by Engineer in charge.

Taking down unserviceable /burnt scroll compressor of capacity up to 10 TR and M & L for scroll compressor of capacity up to 10 TR suitable for any water/ air cooled package/ central AC plant of make blue Danfoss/ copeland etc including removing of refrigerant empty cylinder R-407 flushing the system with nitrogen gas pressure testing and leak repairing vaccumising the system 700 micron charging the refrigerant R-407 complete all as specified and directed by Engr in charge Note : (i) Make and model of compressor shall be exactly the same as per the existing compressor. (ii) Initial gas charge of compressor paid under relevant item.

Taking down unserviceable liquid line filter drier of capacity up to 10 TR and M & L for liquid line filter drier of capacity up to 10 TR suitable for any water/ air cooled package/ central AC plant of make blue star/ Voltas etc including removing of refrigerant empty cylinder R-407/ R-22 flushing the system with nitrogen gas pressure testing and leak repairing vaccumising the system 700 micron charging the refrigerant R-407/ R-22 complete all as specified and directed by Engr in charge Note : Make and model of compressor shall be exactly the same as per the existing compressor.

All as per item no 66 but capacity above 10 TR to 15 TR

All as per item no 66 but capacity more than 15 TR

Taking down old unserviceable Expansion valve of capacity up to 10 TR and supply, fixing and testing new Expansion valve of capacity up to 10 TR suitable for water/ air cooled centerlised/ Package type AC plant complete all as specified and as directed . Note : Make and model shall be exactly the same as per the existing installed.

All as per item no 69 but capacity above 10 TR to 15 TR

All as per item no 69 but capacity more than 15 TR

Taking down old unserviceable PLC card of AC plant Unit of any capacity and supply, fixing and commissioning new controller card suitable for water/ air cooled centralised/ Package type AC plant complete all as specified and as directed . Note : Make shall be exactly the same as per the existing installed.

Supply and fixing in replacement of AHU pre filter ( box type) 10 micron of existing size (610 X 610 x 50mm) made of non woven synthetic material, aluminum/ GI profile frame complete all as directed.

Material and labour for repair ( leak sealing/ cracks/ broken body parts) of cooling tower body/ basin by using 02 coats of high quality FRP material, resins and waterproofing coating to the entire basin to ensure long term protection also checking and balancing the cooling tower fan and replacing corroded Nuts & Bolts complete all as directed. The following capacities of cooling tower is as under

up to 50 TR capacity

above 50 TR to 90 TR Capacity

jassal engineering (BID ID -3513831)

singh enterprises (BID ID -3508106)

M. S. CONTRACTOR (BID ID -3514443)

PANWAR ELECTRICALS (BID ID -3514164)

BHADU BUILDERS (BID ID -3514132)