REPAIRS AND MAINTENANCE OF CASSETTE WINDOW SPLIT TYPE PACKAGE TYPE AC AND CENTRAL AC PLANTS AT ADE DEBEL AND CERTAIN ALLIED REPAIRS UNDER GE I R AND D EAST BANGALORE

Amount

Material and labour for periodical maintenance of Central AC plants of any capacity like checking for proper electrical connection, checking / tightening of V belt, checking refrigerant pipe line, arresting refrigerant gas leakage if any, checking of proper functioning of electrical control panel, checking / cleaning of prefilter (twice in a month), cleaning of out door unit with soap solution and routine checking to ensure smooth running of package AC plants including preparation of monthly inspection report in the register as per proper format for each plant installed at following locations complete all as specified and as directed. (a) Central AC Plant 2 x 34.5 TR + 1 X 34.5 TR standby at SIMULATION Bldg AC Plant. (b) Package AC Plant 2 x 8.5 TR for Flight Simulator Doom 1 & 2. (c) Central AC Plant 2 x 60 TR + 1 X 60 TR standby at RUSTOM II. (d) Central AC Plant 2 x 60 TR + 1 X 60 TR standby at NIRBHAYA NOTE : Replacement of unserviceable spare parts will be measured and paid separately.

Material and labour for periodical maintenance of Central AC plants of any capacity like checking for proper electrical connection, checking / tightening of V belt, checking refrigerant pipe line, arresting refrigerant gas leakage if any, checking of proper functioning of electrical control panel, checking / cleaning of prefilter (twice in a month), cleaning of out door unit with soap solution and routine checking to ensure smooth running of package AC plants including preparation of monthly inspection report in the register as per proper format for each plant installed at following locations complete all as specified and as directed. (a) Central AC Plant 2 x 40 TR + 1 X 40 TR standby at P-63 Abdul Kalam Sabhagana. (b) Central AC Plant 2 x 10 TR at CASSA Bldg. (c) Central AC Plant 2 x 27.5 TR at SAMEEKSHA Bldg. (d) Central AC Plant 2 x 18 TR at FTTI/ Avionics bldg. NOTE : Replacement of unserviceable spare parts will be measured and paid separately.

Material and labour for periodical maintenance of Central AC plants of any capacity like checking for proper electrical connection, checking / tightening of V belt, checking refrigerant pipe line, arresting refrigerant gas leakage if any, checking of proper functioning of electrical control panel, checking / cleaning of prefilter (twice in a month), cleaning of out door unit with soap solution and routine checking to ensure smooth running of package AC plants including preparation of monthly inspection report in the register as per proper format for each plant installed at following locations complete all as specified and as directed. (a) Central AC Plant 1 x 14 TR at PCDG Bldg (b) Central AC Plant 1 x 28 TR + 2 X 16 TR at A&K Bldg (c) Central AC Plant 3 x 50 TR + 2 X 50 TR standby at SIMEL Bldg (e) Central AC Plant 2 x 30 TR at Aerodynamics Bldg (e) Central AC Plant 2 x15 TR at FRP Bldg NOTE : Replacement of unserviceable spare parts will be measured and paid separately.

Material and labour for evacuating of refrigerant gas from the plant into the empty cylinder for up to 120 TR capacity central AC plants, leak testing of the plant with nitrogen (N2) pressure by separating the entire system like low side, high side compressor condensers and rectifying the leakage vacummising re-charging of evacuated refrigerant gas and testing complete all as specified and as directed. NOTE : Topping up of gas will be measured and paid separately.

Material and labour for descaling of condensing unit upto 40 TR capacity of air-conditioning plants by circulating descaling agent (HCL) through the condensers by forced feed method after removing of the end covers of the condensers, cleaning of each tube of condensers thoroughly by the brushing and refixing the end covers of the condensers, replacement of old / unserviceable rubber gasket, bolts, nuts and washers, cleaning of spray nozzles, cup, water line strainer and testing spray nozzles for proper functioning on working pressure complete all as specified and as directed.

Material and labour for cleaning of FRP cooling tower of round / bottle / square type of up to 60 TR capacity by opening the top cover of cooling tower, removing the spare pipe and nozzles properly without any damage to clean the same, cleaning the PVC fills and cooling tower base through circulating caustic soda mixed with water solution for half-an-hour and drain out the dirty water, cleaning the entire cooling tower with wire brush including replacement of old / unserviceable worn out gaskets, bolts, nuts and washers and painting the cooling tower completely with enemelled paint as per instructions of Engineer-in-Charge including testing and commissioning for proper functioning complete all as specified and as directed.

Material and labour for dismantling and taking out the existing unserviceable compressor induction motor after disconnecting the electric connection and in let / outlets, transporting to workshop, removing the burnt out winding from slots, cleaning the rotor slots with CTC and emery paper and rewinding the motor with as per existing size of new super enameled copper winding wire and insulating by using class ‘B’ insulation keeping for drying, bring back to site, reassemble the motor, transporting back to site and fixing in position, connecting electric connections and inlet / outlet including testing and commissioning for its satisfactory performance including taking down old unserviceable copper winding complete all as specified and as directed for the following capacities :-

40 HP capacity

25 HP capacity

20 HP capacity

Upto 15 HP capacity

Material and labour for disconnecting and removing the condensing pump set from the central AC plant installations transporting to workshop for repairing after opening up pump set and replacing of unserviceable ball bearings, including cleaning, oiling, greasing of internal parts, replacement of worn out nut, bolts, washers and gland packing etc, transporting back to site, reassembling in the central AC plant including testing and commissioning complete for proper functioning all as specified and as directed for the following capacities :-

Upto 7.5 HP capacity

Material and labour for dismantling and taking out the existing unserviceable CT Fan motor after disconnecting the electric connection, transporting to workshop, removing the burnt out winding from slots, cleaning the rotor slots with CTC and emery paper and rewinding the motor with as per existing size of new super enameled copper winding wire and insulating by using class ‘B’ insulation keeping for drying, bring back to site, reassemble the motor, transporting back to site and fixing in position, connecting electric connections including testing and commissioning for its satisfactory performance including taking down old unserviceable copper winding complete all as specified and as directed for the following capacities :-

Upto 10 HP Capacity

Supply and fixing of the following HP / LP and pressure cutouts including dismantling of unserviceable cutouts of any type complete all as specified and as directed. MAKE :- DANFOSS / INDFOSS

HP / LP Cutouts

Oil pressure cutouts

Supply and fixing of V-belt for AC plants of the following sizes including removing of old / unserviceable V belt complete all as specified and as directed. MAKE :- FENNER / DUNLOP / VITTON / FIX

V Belt of size Up to B-95

V Belt of size above B-95 to B-120

Material and labour for replacement of unserviceable single phase preventer of following capacity for three phase motor starter type to protect motor from the control panel in AC plants including taking out old / unserviceable single phase preventer complete and testing all as specified and as directed.

Supply and fix in replacement of Phase Failure Relay (Single phase preventer) Auto Reset, 40 Volts. Unbalance, 1 CO Contact complete all as specified and as directed. MAKE :- MINILEC / MINITEC / BEC

Supply and fix in replacement of Phase Failure Relay (Single phase preventer) Auto / Manual / Remote Reset Adj. Unbalance, 2 CO Contact complete all as specified and as directed. MAKE :- MINILEC / MINITEC / BEC

Material and labour for replacement of unserviceable AC power contactor of following capacity from the control panel in AC plants including reconnectiong / testing complete all as specified and as directed. MAKE :- BCH / L&T / SEIMENS / C&S

Supply and fix AC power contactor upto 16 Amps capacity 440 volts, 50 Hz, 3 phase. MAKE :- Siemens Cat No 3TF32 or equivalent

Supply and fix AC power contactor 16 Amps upto 32 Amps capacity 440 volts, 50 Hz, 3 phase MAKE :- Siemens Cat No 3TF34 or equivalent

Supply and fix AC power contactor 32 Amps upto 63 Amps capacity 440 volts, 50 Hz, 3 phase MAKE :- Siemens Cat No 3TF47 or equivalent

Supply and fixing of Bimetal overload relay of the following capacity for central AC plants including taking out old / unserviceable relay of any type / capacity complete all as specified and as directed. MAKE :- L&T / SIEMENS / BCH.

Supply and fix Bimetal over load relay upto 16 Amps capacity

Supply and fix Bimetal over load relay over 16 Amps upto 32 Amps capacity.

Supply and fix Bimetal over load relay over 32 Amps upto 63 Amps capacity.

Dismantling existing cooling tower side cover carefully without damaging the other portion of cooling tower removing unserviceable cooling tower fills supply and fix PVC fills suitable for following capacity cooling tower including removing unserviceable fills complete all as specified and as directed.

60 TR capacity

40 TR capacity

Supply and fixing of shaft seal assembly of any make and model of compressor of any capacity including removing of the unserviceable shaft seal assembly and testing and commissioning complete all as specified and as directed.

Supply and fix weld ball valve of size model DN-25 made out from carbon steel with stainless steel ball with teflon sheeting including necessary modification of existing pipe line to fix new ball valve etc including taking out old / unserviceable ball valve complete all as specified and as directed. MAKE :- CASTLE / ADVANCE / HABONIM

Supply and weld ball valve of size model DN-40/50 made out from carbon steel with stainless steel ball with teflon sheeting including necessary modification of existing pipe line to fix new ball valve etc including taking out old / unserviceable ball valve etc complete all as specified and as directed. Make : CASTLE / ADVANCE / HABONIM

Supply and fixing of cooling tower sprinkler with spin suitable for up to 60 TR capacities cooling tower including removing of unserviceable sprinkler complete all as specified and as directed.

Supply and fix pressure relief valve (safety valve) suitable for compressor including taking down unserviceable pressure relief valve complete all as specified and as directed.

Supply and fix catchall filter of suitable size for 8.5 TR capacity ductable / package AC plant including removing of unserviceable catchall filter etc., complete all as specified and as directed. MAKE :- Sporlan / Danfoss / Synergy

Supply and fixing of thermostatic expansion valve suitable for upto 40 TR capacity of compressor, including removing of unserviceable thermostatic expansion valve complete all as specified and as directed. MAKE :- SPORLAN / ALCO / CASTLE

Supply and fixing water pressure gauge 0 - 8 kg and 4" dia suitable for condenser / Chiller water line including removing of old / unserviceable pressure gauge complete all as specified and as directed.

Supply and fixing suction / discharge / oil pressure gauge of 0-150 / 130 PSI equivalent in Kg / Cu cm for central type AC plant including removing of old unserviceable pressure gauge complete all as specified and as directed. MAKE :- FEIBEG / H GURU / KI

Supply and fixing removable type factory made metallic pre-filter of 20 microns of standard size with GI frame both side including removing of unserviceable metallic pre-filters complete all as specified and as directed. MAKE :- AEROSOL / MAF / DYNA

Material and labour for dismantling and taking out the existing unserviceable CT Fan motor after disconnecting the electric connection and with out disturbing all connections and replacement of CF Fan motor following capacity and fixing in position, connecting electric connections including testing and commissioning for its satisfactory performance complete all as specified and as directed for the following capacities :- 1 HP capacity

2 HP capacity

Supply and fix in replacement of unserviceable micro processor PC board with new microprocessor PC board on any type of AC like existing / inverter type split AC / Cassette Type AC by dismantling / disconnecting the same carefully without disturbing other components upto 3 TR capacity AC including making necessary fixing arrangement etc., complete all as specified and as directed. Make : LG / Carrier / Voltas / Bluestar / Hitachi / Samsung

Material and labour for dismantling of split AC complete inner and outer unit upto 3 TR after removing all connection like refrigerant pipe / voltage stabilizer safely and rexing the same at the other location including making all connection and testing in on position all as specified and directed. NOTE :- Rate quoted by contractor shall deemed to include for core cutting / wall cutting including making hole for refrigerant pipe etc . No extra items except refrigerant gas and copper pipe if required shall be paid. .

Supplying and laying in repairs Copper refrigerant pipe Copper tube 5/8" x 3/8". complete all as specified and as directed.

Supplying and fixing in repairs Copper refrigerant pipe Copper tube 1/2 " x 1/4". complete all as specified and as directed.

Supplying and fixing in repairs Copper refrigerant pipe Copper tube 5/8 " x 1/4". complete all as specified and as directed.

Material and labour for removing the Split type Air conditioner outdoor unit / indoor unit from its position for pressure / leak testing and arresting the leakages in condenser coil / cooling coil by brazing etc and gas charging as per required basis complete for Split type AC 1.5 ton / 2.0 ton / 3 TR complete all as specified and as directed. NOTE :- Rates quoted by the contractor shall includes for refrigerant gas charging as per required basis

Material and labour for complete servicing after pumping down Indoor / outdoor units of split AC complete by cleaning condenser / Evaporator coil with air blower, wet servicing of condenser coil unit with caustic soda etc, replacement of sheet metal screws wherever necessary applying oil in fan motor bushes checking and rectifying the wiring defects, proper setting of thermostat and other electrical / Refrigerant controls, cleaning the air filter for split air conditioner upto 2 TR all as specified and directed. NOTE : (i) The rate is deemed to includes for minor spares (ii) Gas shall be measured and paid separately under relevant item.

All as per Sl Item No. 54 above but for multi Split type Air Conditioner 3.0 Ton ( 2 x 1.5 TR)

All as per Sl Item No. 54 above but for Window Type Air conditioner upto 1.5 TR capacity

All as per Sl Item No. 54 above but for 3 TR capacity cassette / tower type AC

All as per Sl Item No. 54 above but for 4 to 5 TR capacity split / multi split / tower type AC cassette / ductable / VRF type AC

Cleaning of external surface to window / split / cassette type AC of any capacity or any type including writing MES No etc complete all as specified and as directed by Engineer in Charge

Supply and fix in replacement of remote for split type A/C, 1.5 TR / 2 TR capacities along with wiring as per existing complete all as specified and as directed. MAKE :- LG / Voltas / Hitachi / Bluestar / Carrier / Samsung

Disconnecting and taking down unserviceable overload relay from window / split type AC upto 3 TR capacity including supply and fix new overload relay suitable for any type AC upto 3 TR testing and commissioning for satisfactory performance complete all as specified and as directed. MAKE :- SRIRAM / ANNAPOORNA

Disconnecting and taking down unserviceable thermostat from window / split type air-conditioner up to 3 TR capacity, supply and fix new thermostat, testing and commissioning the same for satisfactory performance complete all as specified and as directed.

Supply and fix in replacement of unserviceable starting capacitor of 80 / 100 mfd suitable for split / window type air conditioner upto 3 TR complete all as specified and as directed.

Supply and fix in replacement of running capacitor 25 / 36 / 45 / 50 mfd suitable for window / split type air conditioners up to 3 TR capacity complete all as specified and as directed.

Disconnecting and taking down unserviceable internal wiring of window / split type air conditioner up to 3 TR capacity and supply and rewiring complete with copper conductors including testing and commissioning complete all as specified and as directed.

Removing defective unserviceable fan blades from window / split type air-conditioners upto 3 TR capacity, supply and fix new blade suitable for air-conditioners of existing make of LG / Blue Star / Voltas / Carrier complete all as specified and as directed.

Supply and fix Time delay timer cum single phase preventer suitable for 2 TR / 3 TR capacity any make and any model of split type AC including taking down unserviceable timer etc., complete all as specified and as directed. MAKE :- L&T / GIC / BCH / MINILEC

Supply and lay PVC insulated cable flexible type with copper conductor 4 sqmm 3 core suitable for window / split type air-conditioner up to 3 TR capacity of length 3 mtr complete all as specified and as directed. MAKE :- Havells / Polycab / Finolex / RPG

Opening dismantling and removing the indoor unit of split air conditioner of capacity 1.5 / 2 TR and supply and fix new indoor unit of split air conditioner of 1.5 / 2 TR with making complete all as specified and as directed by Engineer-in-Charge. MAKE :- LG / Voltas / Blue Star / Samsung / Carrier / Hitachi or as per existing make

Supply and charging refrigerant gas R-22 / 407C / 134A / R-32 complete all as specified and as directed. MAKE :- Fluron / Mettron / Refron

Supply and fix in replacement of compressor oil servo friz F-68 of Indian oil or equivalent in BPCL / HPCL complete all as specified and as directed.

Supply and fix in replacement of outdoor condensing unit of split type AC (normal / inverter type) 1.5 / 2 TR capacity complete all as specified and as directed. MAKE :- Voltas / Blue Star / Carrier

Supply and fix in replacement of new hermetically / Rotary sealed compressor for 1.5 TR capacity split type AC including removing of unserviceable sealed compressor unit etc complete all as specified and as directed. MAKE :-: Emerson / Tecumshah / Total Line

All as per Sl Item No. 73 above but of 2 TR

All as per Sl Item No. 73 above but of 3 TR

Removing defective unserviceable condensing coil fan motor from split type air-conditioners up to 3 TR capacity, supply and fix new condensing coil fan motor suitable for air conditioners upto 3 TR complete all as specified and as directed.

Supply and fix in replacement of voltage stabilizer upto 5 KVA capacity including testing etc., taking down old unserviceable one complete all as specified and directed. MAKE :-V Guard / Volino / TOTAL LINE

Removing defective unserviceable blower fan motor indoor unit from split type air conditioners of 3 TR capacity, supply and fix blower fan motor unit suitable for split air conditioners upto 3 TR,complete all as specified and as directed.

Supply and fix in replacement of phase failure relay suitable for window / split type air conditioner upto 3 TR complete all as specified and as directed. MAKE :- VSP / Minilac

Supply and fix plug top metal clad 3 pin 16 Amps suitable for window / split type air conditioner up to 2TR capacity complete all as specified and as directed. MAKE :- Anchor / Finolex / Havells / Standard.

Insulating the suction / discharge line of split type air conditioner up to 3 TR capacity with necessary insulating filter wool 6mm thick upto 3 mtr length complete all as specified and as directed.

Supply and fix Contactor 240 volt, up to 32 Amps suitable for window / split type AC capacity up to 3.0 TR including dismantling of existing contactor complete all as specified and as directed. MAKE :- Havells / LG / L&T / BCH

Dismantling unserviceable cooling coil from 1.5 / 2 / 3 TR capacity split AC carefully without damaging the other parts, supply and fix new cooling coil made out from seamless hard copper pipe including brazing and pressure testing dry nitrogen gas including charging any type of refrigerant gas as per existing AC, testing, commissioning, etc suitable for make LG / Bluestar / Voltas / Carrier complete all as specified and as directed.

Supply and fix MCB SP 32 Amps 10 KA including taking out unserviceable MCB etc complete all as specified and as directed.

Material and labour for Industrial type sheet metal plug and socket complete with MCB SP 20 Amps including taking down old unserviceable one complete all as directed

Supply and fix in replacement of blower of split air conditioner suitable for any type AC like existing / invertor type AC upto 1.5 / 2 TR capacity as per existing make and model suitable for make LG / Bluestar / Voltas / Carrier Airconditioning including making all connection and testing to entire satisfaction of Engineer-in-Charge.

Supply and fix PVC insulated cable flexible type with copper conductor of size 2.5 Sqmm 3 core suitable for window / split type air conditioner up to 3 TR for connecting to indoor to outdoor unit capacity upto 5 Mtr length complete all as specified and as directed.

Pressure testing and rectifying leakage in the system of ductable split air conditioner / cassette type AC / package type / VRF / VRV type up to 3 TR to 5 TR capacity by brazing including copper tubing if required upto 1.5 Mtr length and including gas charging, testing for satisfactory performance, commissioning complete all as specified and as directed.

Removing defective PC board carefully with out disturbing the cooling coil and fan motor of upto 3 TR air conditioner and taking to reputed workshop check thoroughly and rectify the fault including replacement of IC transformer and connected accessories and refixing back to original position including testing and commissioning etc complete all as specified and as directed.

Supply and fix complete body made out from 24 SWG GI sheet with powder coating of split type AC suitable for fixing of condenser coil, compressor and other accessories of 2 TR capacity split type AC including taking out unserviceable rusted existing outer body of 2 TR capacity slit type AC complete all as specified and as directed.

Removing old rusted outdoor unit split air conditioner stand upto 2 TR from the existing site, supply and fix new stand made of mild steel as per existing without disturbing / damaging the copper piping etc complete all as specified and as directed.

Supply and fix in replacement of PCB board suitable for VRF / VRV type Package type Air conditioner as per existing make and model upto 05 TR cassette / package type air conditioner complete all as specified and as directed by Engineer-in-Charge.

Supply and fix solenoid valve 3 way type for liquid line model S-180 MAKE :- SANLAN OR EQUIVALENT

Supply and fix loading unloading solenoid 3 way type with 230V coil suitable for Kirlosker / ACCEL / VOLTAS model compressor including making of necessary flare connection replacement of adopters flare nuts T connectors and including removing of unserviceable solenoid valve etc all as directed. MAKE :- ROTEX / AVCON

Supply and fix factory made micro filters of 99 micron down to 5 micron of standard size with felt cloth fixing with MS / GI frame suitable for central air-conditioning plant including replacement of bolt nuts and taking out unserviceable filters complete all as specified and as directed. MAKE :- MAF / AEROSOL / DYNA / JOHN FLOWER

R Tech Mech (BID ID -3078347)

RAHUL ENTERPRISES (BID ID -3075919)

M/S J J ENTERPRISES (BID ID -3094263)

Glacier Cooling Solutions Private Limited (BID ID -3092972)