Repair/Maitanace of central AC Plant and connnected works at AF Station Gorakhpur

Amount

Descaling of shell & tube type condenser by opening of condenser 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 26 TR – 12 AFH

Condenser 30 TR at Simulator

Condenser 7.5 TR at ASMS

condensor 15 TR chiller simulator

CONDENSER 10 TR AT SES AC PLANT

CONDENSER 39 TR AT SHAMSHER AC PLANT

CONDENSER 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

60 TR cap – Simulator AC plant

15 TR cap at Simulator chiller A/c plant

10 TR cap – CR & SS Hanger

15 TR cap – at ASMS

39 TR cap – at Shamsher Auditorium

130 TR Cap -at WSA AC plant

52TR 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

30 TR at Simulator

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 BombDump

9 TR cap at NGCCM Bomb Dump

Supply and charging of compressor oil N-68

Supply and charging R-22 gas

Supply and charging of R -407 gas

Supply and charging of R-134a gas

S&F Solenoid valve 3 way pilot control type suitable for Chiller & AHU unit for Central AC Plant

Repair/ maintenance of package type AC plant of 7.5 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 22.5 TR capacity ( 7.5TR X 3 nos) which are found defective while repairing as catered under respective items for the following complete all as directed by engr-in charge.

Supply and fix strainer drier 5/8" complete all as directed by engr-in charge.

Supply and fix LP/HP cut out complete all as directed by engr-in charge. Make Indfors/Ranco

Supply and fix main thermostate complete all as directed by engr-in charge.

M & L for replacement of canvas cloth on duct with provision of zips at out side of package unit complete all as directed by engr-in charge.

Supply and fix Thermometer complete all as directed by engr-in charge.

Supply and fixing in repair V-belt of size A-36 complete all as directed by engr-in charge.

Supply and fix power contactor ML 1.5 or equivalent complete all as directed by engr-in charge.

Supply and fix control relay complete all as directed by engr-in charge.

Supply and push button complete all as directed by engr-in charge.

Supply and fix indicating lamp complete all as directed by engr-in charge.

Supply and fix auxilary contactor complete all as directed by engr-in charge. Make : L&T or equivalent

Supply and fix copper tubing for 7.5 Ton capacity complete all as directed by engr-in charge.

Supply and fix fins for cooling tower as per sample complete all as directed by engr-in charge.

Supply and fix glass wool for package type unit complete all as directed by engr-in charge.

Dismantling of condensor 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 of Pakage type AC unit, cleaning properly the slots, baking of winding, greasing of bearing etc at ASMS 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 of Pakage type AC unit, cleaning properly the slots, baking of winding, greasing of bearing etc at ASMS AC Plant complete all as directed by Engr-in charge

Repair/ maintenance of Open type AC plant of 30 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 60 TR capacity ( 30TR 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 strainer drier 5/8"

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

Supply and fix main thermostate

M&L for replacement of canvas cloth on duct with provision of zips at out side of package unit

Supply and fix Thermometer complete all as directed by engr-in charge.

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

Supply and fix power contactor ML 1.5 or equivalent complete all as directed by engr-in charge.

Supply and fix control relay complete all as directed by engr-in charge.

Supply and push button complete all as directed by engr-in charge.

Supply and fix indicating lamp complete all as directed by engr-in charge.

Supply and fix auxilary contactor complete all as directed by engr-in charge. Make : L&T or equivalent

Supply and fix copper tubing for 30 Ton capacity complete all as directed by engr-in charge.

Supply and fix air filter of size 600mm X 300 mm as per sample complete all as directed by engr-in charge.

Supply and fix glass wool for package type unit complete all as directed by engr-in charge.

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 of AC unit, cleaning properly the slots, baking of winding, greasing of bearing etc at Simulator 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 of AC unit, cleaning properly the slots, baking of winding, greasing of bearing etc at Simulator 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 of AC unit, cleaning properly the slots, baking of winding, greasing of bearing etc at Simulator AC Plant complete all as directed by Engr-in charge

M & L for servicing and overhauling of compressor, model SMC (8-65) Cap - 30 TR, make "Accel" located at Simulator AC Plant including disconnecting/ dismantling the compressor from AC plant for and take the compresser components by transporting from AF Stn Gkp to Gkp city work shop, for repair and replacement of U/S components incl machining and grinding on lathe & polishing to cranks shaft complete all as specified and directed Note : (i) Item to be replaced for sch 'A' item No 14 will be paid under item No 15 for supply only. (ii) Refrigeration gas & compressor oil shall be paid separately

Supply only of following items complete all as specified and directed .

Thrust washer

Main bearing

Half suction bearing

Suction reed

Discharge reed

Discharge valve plate Assy'

Loader/ un loader Assy

Gasket set

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 respective items 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 directed by engr-in charge.

Supply and fix Hot Water Genrator display complete all as directed by engr-in charge.

Supply and fix Hot Water Genrator control card complete all as directed by engr-in charge.

Supply and fix Hot water Generator SMPS complete all as directed by engr-in charge.

Supply and fix canvas cloth on duct with provision of zips at out side of package unit

Supply and fix Thermometer complete all as directed by engr-in charge.

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

Supply and fix power contactor MNX -45 or equivalent complete all as directed by engr-in charge.

Supply and push button complete all as directed by engr-in charge.

Supply and fix indicating lamp complete all as directed by engr-in charge.

Supply and fix copper tubing for 26 Ton capacity complete all as directed by engr-in charge.

Supply and fix air filter of size 600mm X 600 mm as per sample complete all as directed by engr-in charge.

Supply and fix glass wool for package type unit complete all as directed by engr-in charge.

Supply and fix Pre Filter 10 micron of 600mmX 600 mm as per sample complete all as directed by engr-in charge.

Supply and fix Pre Filter 10 micron of 600mmX 300 mm as per sample complete all as directed by engr-in charge.

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 swicth complete all as directed by Engr-in charge

Supply and fix Mini Hepa filter 1220x610x70 mm complete all as directed by Engr-in charge

Supply and fix Mini Hepa filter 1220x270x70 mm complete all as directed by Engr-in charge

Supply and fix Mini Hepa filter 610x305x70 mm complete all as directed by Engr-in charge

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 and as directed by Engineer-in-Charge. 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 respective items for the following complete all as directed by engr-in charge.

Supply and fix three pole MCB 63 Amps complete and as directed by Engineer-in-Charge

Supply and fix microbased sensors of LWT /EWT as per sample complete and as directed by Engineer-in-Charge

Supply and fix main thermostate complete and as directed by Engineer-in-Charge

Supply and fix canvas cloth on duct with provision of zips at out side of package unit complete and as directed by Engineer-in-Charge

Supply and fix Thermometer complete and as directed by Engineer-in-Charge

Supply and fixing in repair V-belt of size as per sample complete and as directed by Engineer-in-Charge

Supply and fix power contactor MNX A2 or equivalent complete and as directed by Engineer-in-Charge

Supply and fix control relay complete all as directed by engr-in charge.

Supply and push button complete and as directed by Engineer-in-Charge

Supply and fix indicating lamp complete and as directed by Engineer-in-Charge

Supply and fix butterfly wal 150mm complete and as directed by Engineer-in-Charge

Supply and fix copper tubing for 30 Ton capacity complete and as directed by Engineer-in-Charge

Supply and fix air filter of size 600mm X 600 mm as per sample complete and as directed by Engineer-in-Charge

Supply and fix 450 mm fan blade as per sample for AC unit complete and as directed by Engineer-in-Charge

Supply and fix Pre Filter 10 micron of 600mmX 600 mm as per sample complete all as directed by engr-in charge.

Supply and fix Pre Filter 10 micron of 600mmX 300 mm as per sample complete all as directed by engr-in charge.

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 suitable for 7.5 HP pump complete all as specified and directed.

S & F Shaft Seal Model SMC 8-65 ACCEL Compressor complete all as specified and directed.

S & F Shaft Seal Model SMC 3-65 ACCEL Compressor complete all as specified and directed .

S & F in replacement of safety valve suitable for 4-65 ACCEL Compressor complete all as specified and directed.

S & F in replacement of safety valve suitable for 8-65 ACCEL Compressor complete all as specified and directed .

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

S&F oil failure switch MP-55 complete 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 complete all as specified and directed.

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

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

S&F Electric Pannel complete all as specified and directed.

S&F MCB TPN 63Amp B-Curve complete all as specified and directed.

S & F Condenser Fan motor 1HP rewinding complete all as specified and directed.

S&F Sensor complete all as specified and directed.

S&F Tharmostate 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. Make: Rallision/ Havells /KEI

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. Make: Rallision/ Havells /KEI

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 250 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 Voltmeter 0-500 Amp make:- L&T/AE/AEE

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

S & F in replacement of new of XLPE insulated armour AL conductor size 120X3.5 core 11 KV all as specified. Make: Rallision/Havells/KEI

S & F in replacement of new of XLPE insulated armour AL conductor size 95X3.5 core 11 KV all as specified. Make: Rallision/Havells/KEI

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

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

Supply and lay MS pipe heavy grade with all fitting laid in floors or fixed to wall with labure chargegs and bend included size 80mm

Supply and installation and testing of monoblock pump set motor suitable for 415 V, 3 phase system having capacity 7.5 HP.

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

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

M/s Mahendra Construction

COOLING CENTRE