REPAIR / MAINT OF CENTRAL AC PLANTS AT AF STN GORAKHPUR

Amount

Descaling of shell & tube type condenser by opening of condenser Unit cover from both ends followed by un screwing of existing water supply line (Inlet/Out let) of any size including reconnecting properly by puttying necessary gasket after decaling is complete all as specified and directed for the following condenser including evapovrating coils, housing , cleaning of air filter with chemical etc :-

Condenser Unit 26 TR at 12 AF Hospital

Condenser Unit 25 TR at MLH (Medium lift helicopter) Lab

condensor Unit 15 TR chiller simulator

CONDENSER Unit 10 TR AT SES AC PLANT

CONDENSER Unit 39 TR AT SHAMSHER AC PLANT

CONDENSER Unit 65 TR AT WSA AC PLANT

Cleaning and de scaling of existing water supply line from FRP to cooling tower including fins of FRP of any size by un screwing , running ,joints to valves by pouring and flowing decaling liquid. The process will continue till scales are removed ,including reconnection , running joints & valves etc complete all as specified and directed for following sizes of FRP

25 TR cap – MLH (Medium lift helicopter) Lab AC plant

15 TR cap at Simulator chiller A/c plant

10 TR cap – SES

39 TR cap – at Shamsher Auditorium

130 TR Cap -at WSA AC plant

52 TR cap – at 12 AF Hosp

Detection of leakage in refrigeration system by vacuuming the system, charging Nitrogen gas / Halide torch including rectification with material & labour except refrigerant gas complete all as specified and directed in all respect of the following :-

10 TR at SES AC plant

15 TR ASMS AC Plant/Chiller simulator AC Plant

25 TR at MLH (Medium lift helicopter) Lab Hanger

26 TR at 12AFH AC plant

80 TR cap – at Drain AC Plant

39 TR cap at Shamsher Auditorium

65 TR cap at WSA AC Plant

17 TR cap at NGCCM Bomb Dump

9 TR cap at NGCCM Bomb Dump

Supply and charging of compressor oil N-68 complete all as specified and directed

Supply and charging of R -407 gas complete all as specified and directed

Supply and charging of R-134a gas complete all as specified and directed

S&F Solenoid valve , 230 volt, 3 way pilot control type suitable for Chiller & AHU unit for Central AC Plant of capacity 25 TR complete all as specified and directed.

Repair/ maintenance of package type AC plant of 09 TR capacity each connected accessories such as compressor, Humidity control, Air handling unit, cooling tower, pump etc complete Note :- (a) Maintenance of installation shall be carried out as directed by Engineer-in-Charge. (b) The rate quoted shall be deemed to be included the cost of any minor spares such as Gland, Nut, bolt, washers, Gasket (gas will be measured and paid separately )

M&L for taking out the following accessories and provn of the following spare parts for Package type AC plant 09 TR capacity ( 09 TR X 2 nos) which are found defective while repairing as catered under item no 01 above for the following complete all as directed by engr-in charge.

Supply and fix strainer drier 5/8"

Supply and fix LP/HP cut out Make Indfors/Ranco

Supply and fix main thermostate Temperature range 50-300 Deg C, 15A, 230-250 VAC complete all as specified and directed.

M&L for replacement of canvas cloth on duct with provision of zips at out side of package unit complete all as specified and directed.

Supply and fix Thermometer range 0-50 Deg C, 1/2 Inch BSP(M) complete all as specified and directed.

Supply and fixing in repair V-belt of size A-36

Supply and fix power contactor ML 1.5 , 3 phase,415 Volts,20 Ampscomplete all as specified and directed.

Supply and fix over load control relay, 20-33 Amps complete all as specified and directed. Model No L&T SS9414500E0

Supply and fix replavement of push button complete all as specified and directed.

Supply and fix indicating lamp LED type,220V,50 Hz complete all as specified and directed.

Supply and fix auxilary contactor, 25A,,3 pole,220 VAC,3NO and 3NC complete all as specified and directed. Make : L&T, Schneider or equivalent

Supply and fix copper tubing 12.5 mm dia for 09 Ton capacity complete all as specified and directed.

Supply and fix fins for cooling tower as per ground data sample complete all as specified and directed.

Supply and fix glass wool 48Kg/Cum, 50 mm thick pad for package type unit complete all as specified and directed.

Dismantling of condensor unit's pump motor of capacity 3 HP removing the burnt coil, re-winding of motor with super enamelled copper wire of suitable size and gauge including replacement of bearing as per original of Pakage type AC unit, cleaning properly the slots, baking of winding, greasing of bearing etc at NGCCM AC Plantcomplete all as directed by Engr-in charge

Dismantling of blower motor of capacity 2.5 HP removing the burnt coil, re-winding of motor with super enamelled copper wire of suitable size and gauge including replacement of bearing as per original data of Pakage type AC unit, cleaning properly the slots, baking of winding, greasing of bearing etc at 09 TR NGCCM AC Plant complete all as directed by Engr-in charge

Repair/ maintenance of Open type AC plant of 25 TR capacity each connected accessories such as compressor, Humidity control, Air handling unit, cooling tower, pump etc complete Note :- (a) Maintenance of installation shall be carried out as directed by Engineer-in-Charge. (b) The rate quoted shall be deemed to be included the cost of any minor spares such as Gland, Nut, bolt, washers, Gasket (gas will be measured and paid separately )

M&L for taking out the following accessories and provn of the following spare parts for Package type AC plant 25 TR capacity ( 25TR X 1 nos) which are found defective while repairing as catered under item no 01 above for the following complete all as directed by engr-in charge.

Supply and fix strainer drier 5/8" complete all as specified and directed.

Supply and fix LP/HP cut out complete all as specified and directed. Make Indfors/Ranco

Supply and fix main thermostate Temperature range 50-300 Deg C, 15A, 230-250 VAC complete all as specified and directed.

M&L for replacement of canvas cloth on duct with provision of zips at out side of package unit complete all as specified and directed.

Supply and fix Thermometer range 0-50 Deg C, 1/2 Inch BSP(M) complete all as specified and directed.

Supply and fixing in repair V-belt of size as per sample complete all as specified and directed.

Supply and fix power contactor ML 1.5 , 3 phase,415 Volts,20 Amps complete all as specified and directed.

Supply and fix over load control relay, 20-33 Amps complete all as specified and directed. Model No L&T SS9414500E0

Supply and fix push button complete all as specified and directed.

Supply and fix indicating lamp LED type, 220 Volts complete all as specified and directed.

Supply and fix auxilary contactor, 25A,,3 pole,220 VAC,3NO and 3NC complete all as specified and directed. Make : L&T, Schneider or equivalent

Supply and fix copper tubing,25 mm dia for 25 Ton capacity complete all as specified and directed.

Supply and fix air filter of size 600mm X 300 mm as per sample complete all as specified and directed.

Supply and fix glass wool 48Kg/Cum, 50 mm thick pad for package type unit complete all as specified and directed.

Dismantling of any type motor of capacity 12.5 HP removing the burnt coil, re-winding of motor with super enamelled copper wire of suitable size and gauge including replacement of bearing as per existing data of AC unit, cleaning properly the slots, baking of winding, greasing of bearing etc at MLH (Medium lift helicopter) Lab AC Plant complete all as directed by Engr-in charge

Dismantling of compressor motor of capacity 30 HP removing the burnt coil, re-winding of motor with super enamelled copper wire of suitable size and gauge including replacement of bearing as per existing data of AC unit, cleaning properly the slots, baking of winding, greasing of bearing etc at MLH (Medium lift helicopter) Lab AC Plant complete all as directed by Engr-in charge

Dismantling of blower motor of capacity 05 HP removing the burnt coil, re-winding of motor with super enamelled copper wire of suitable size and gauge including replacement of bearing as per existing data of AC unit, cleaning properly the slots, baking of winding, greasing of bearing etc at MLH (Medium lift helicopter) Lab AC Plant complete all as directed by Engr-in charge

Repair/ maintenance of Sealed type AC plant of 26 TR capacity each connected accessories such as compressor, Humidity control, Air handling unit, cooling tower, pump etc complete Note :- (a) Maintenance of installation shall be carried out as directed by Engineer-in-Charge. (b) The rate quoted shall be deemed to be included the cost of any minor spares such as Gland, Nut, bolt, washers, Gasket (gas will be measured and paid separately )

M&L for taking out the following accessories and provn of the following spare parts for Package type AC plant 52 TR capacity ( 26TR X 3 nos) which are found defective while repairing as catered under item no 01 above for the following complete all as directed by engr-in charge.

Supply and fix microbased sensors of LWT /EWT as per sample complete all as specified and directed.

Supply and fix Hot Water Genrator display complete all as specified and directed.

Supply and fix Hot Water Genrator control card complete all as specified and directed.

Supply and fix Hot water Generator SMPS complete all as specified and directed.

M&L for replacement of canvas cloth on duct with provision of zips at out side of package unit complete all as specified and directed.

Supply and fix Thermometer complete all as specified and directed.

Supply and fixing in repair V-belt of size as per sample complete all as specified and directed.

Supply and fix power contactor MNX -45 or equivalent complete all as specified and directed.

Supply and push button complete all as specified and directed.

Supply and fix indicating lamp complete all as specified and directed.

Supply and fix copper tubing for 26 Ton capacity complete all as specified and directed.

Supply and fix air filter of size 600mm X 600 mm as per sample complete all as specified and directed.

Supply and fix glass wool for package type unit complete all as specified and directed.

supply and fix Pre Filter 10 micron of 600mmX 600 mm as per sample complete all as specified and directed.

supply and fix Pre Filter 10 micron of 600mmX 300 mm as per sample complete all as specified and directed.

Dismantling of AHU/Chiller single phase motor of capacity 7.5 HP removing the burnt coil, re-winding of motor with super enamelled copper wire of suitable size and gauge including replacement of bearing of AC unit, cleaning properly the slots, baking of winding, greasing of bearing etc for AC Plant complete all as directed by Engr-in charge

Supply and fix Water failour switch complete all as specified and directed.

Supply and fix Mini Hepa filter 1220x610x70 mm complete all as specified and directed.

Supply and fix Mini Hepa filter 1220x270x70 mm complete all as specified and directed.

Supply and fix Mini Hepa filter 610x305x70 mm complete all as specified and directed.

Repair/ maintenance of Sealed type AC plant DARIN III of 80 TR capacity each connected accessories such as compressor, Humidity control, Air handling unit, cooling tower, pump etc complete Note :- (a) Maintenance of installation shall be carried out as directed by Engineer-in-Charge. (b) The rate quoted shall be deemed to be included the cost of any minor spares such as Gland, Nut, bolt, washers, Gasket (gas will be measured and paid separately )

M&L for taking out the following accessories and provn of the following spare parts for Package type AC plant 160 TR capacity (80TR X 3 nos) DARIN III which are found defective while repairing as catered under item no 01 above for the following complete all as directed by engr-in charge.

Supply and fix three pole MCB 63 Amps complete all as specified and directed.

Supply and fix microbased sensors of LWT /EWT as per sample complete all as specified and directed.

Supply and fix main thermostate complete all as specified and directed.

M&L for replacement of canvas cloth on duct with provision of zips at out side of package unit complete all as specified and directed.

Supply and fix Thermometer range 0-50 Deg C, 1/2 Inch BSP(M) complete all as specified and directed.

Supply and fixing in repair V-belt of size as per sample complete all as specified and directed.

Supply and fix power contactor MNX A2 or equivalent complete all as specified and directed.

Supply and fix control relay complete all as specified and directed.

Supply and push button complete all as specified and directed.

Supply and fix indicating lamp complete all as specified and directed.

Supply and fix butterfly wal 150mm complete all as specified and directed.

Supply and fix copper tubing for 30 Ton capacity complete all as specified and directed.

Supply and fix air filter of size 600mm X 600 mm as per sample complete all as specified and directed.

Supply and fix 450 mm fan blade as per sample for AC unit complete all as specified and directed.

supply and fix Pre Filter 10 micron of 600mmX 600 mm as per sample complete all as specified and directed.

supply and fix Pre Filter 10 micron of 600mmX 300 mm as per sample complete all as specified and directed.

M & L for rewinding of Mono block 3 phase 7. 5 HP by superior quality of super enameled copper wire of matching size of appropriate size of including material & drg, insulating and proper fitting/ parts required for replacement shall be said separately complete all as specified and directed .

M & L for rewinding of Mono block 3 phase 3 HP by superior quality of super enameled copper wire of matching size of appropriate size of including material & drg, insulating and proper fitting ( parts required for replacement shall be said separately complete all as specified and directed .

S & F in replacement of Bronze impeller suitable for 7.5 HP pump complete all as specified and directed .

S & F in replacement of bearing 6205 ZZ suitable for 7.5 HP pump complete all as specified and directed.

S & F in replacement of Solenoid valve suitable for compressor model 8-65 for MLH AC PLANT complete all as specified and directed .

S&F oil failure switch MP-55 all as specified and directed Make- Indfoss

S&F in replacement Y-strainer for CAP 7.5 TR TO 50 TR AC plant as per suitable size all as specified and directed.

S&F pressure gauge 150/200/300 PSI all as specified and directed

S&F Heating strip 3 KW all as specified and directed

M&L for painting of complete AC plant(Compresser,condenser ,Water pipe line , Cooling tower & all piping), preparation of old size and applying two coat of synthetic enamel paint(Blue colour) and writing of SM/MES No complete including LT panel of ASMS AC Plant all as specified and directed

M&L for housing of cooling tower with blade for 52 TR capacity AC plant with connected accessories complete all as specified and directed

Supplying, installing, testing and commissioning of factory made in door type cubical type, dust & vermin proof LT equipment distribution panel board for package type AC Plant, without bus bar, made out of 16 gauge thick CRCA sheet steel of size with angle iron channel pedestal frame compartmental type dust and vermin proof free , earthing stud, labelling, interconnections, providing of danger plates etc. suitable for working on 415 Volts 3 phase 50 Hz AC supply, Painted with powder coated , IP 54 protection with cable entry hole at the bottom and mounting on angle iron frame duly grouted on 30 cms above ground level. Comprising and provision of the following for 17TR NGCCM and 09 TR NGCCM.:-

M & L for rewinding of Condenser Fan motor,1HP with superior quality of super enameled copper wire of matching size as per original data including varnishing, insulating complete all as specified and directed .

S&F Chiller temperature Sencer waterproof , probe-1 Meter Heat resistant thermal cable, 3 pin,3 volts,wattage 2 Mili watt,temperature range 555 to 125 OC complete all as specified and directed.

Supply and fix Thermometer range 0-50 Deg C, 1/2 Inch BSP(M) complete all as specified and directed.

S&F in replacement of PVC copper cable size 6 Sqmm 3 core , 415 V complete all as specified and directed.

S&F in replacement of PVC copper cable size 10 Sqmm 3 core , 415 V complete all as specified and directed. Make: Rallision/ Havells /KEI

S&F in replacement of PVC copper cable size 16 Sqmm 3 core , 415 V complete all as specified and directed .

S&F Industrial Heating Element 3 KW complete all as specified and directed

M&L MCCB 160 amp 415Volts 4 Pole 36 KA With Thermal adjutment and magnetic setting complete with sheet steel enclosure and fixing on Exiting PANEL all as required with nut bolts complete all as specified and directed and taking down old one.

M&L MCCB 200 amp 415Volts 4 Pole 36 KA With Thermal adjutment and magnetic setting complete with sheet steel enclosure and fixing on Exiting PANEL all as required with nut bolts complete all as specified and directed and taking down old one.

M&L MCCB 630 amp 415Volts 4 Pole 36 KA With Thermal adjutment and magnetic setting complete with sheet steel enclosure and fixing on Exiting PANEL all as required with nut bolts complete all as specified and directed and taking down old one.

Supply and fixing in replacement of anlog Voltmeter 0-500 Amp complete all as specified and directed.

Supply only MCB TPN with 'C' curve 80 Amp complete all as spcified and directed

Supply and lay MS pipe heavy grade with all fitting laid in floors or fixed to wall with labure chargegs and bend included size 150mm complete all as specified and directed.

Supply and lay MS pipe heavy grade with all fitting laid in floors or fixed to wall with labure chargegs and bend included size 100mm complete all as specified and directed.

Supply and lay MS pipe heavy grade with all fitting laid in floors or fixed to wall with labure charges and bend included size 80mm complete all as specified and directed.

S & F and programing and testing of Control card PCV of 65 TR Chiller AC Plant Chiller Carel Controller WSA AC Plant complete all as specified and directed. Make: Blue Star

S &F and programing and testing of Micro Drive model No. 132F0059 Danfoss FC051P15KT4E20H3BXCXXXSX complete all as specified and directed. Make: Danfoss at Derin Lab AC Plant.

M/s A.K Construction (BID ID -3263303)

M/S SHANKER TRADERS (BID ID -3263629)

GIAN ENGINEERS (BID ID -3268258)