REPAIRS MAINTENANCE OF CENTRAL PACKAGE TYPE AC PLANTS CHILLER PLANTS DUCTABLE AC AT VARIOUS LABS UNDER GE I R AND D EAST BANGALORE

Amount

Material and labour for evacuating of refrigerant gas from the plant into the empty cylinder for up to 100 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 vacummizing 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 disconnecting the compressor of any make and model upto 100 TR capacity and open the compressor head replace the suction leads and discharge leads and valve springs drain out the compressor oil and refill the new compressor oil replacement of worn out head gasket side cover gasket and replacement of minor spare parts like bolt and washers etc and leak testing of compressor all as specified and as directed. Make : ACCELSMC 4-65 installed at 7A-7B Bldg 3 X 15 TR Central AC plant (01 No as stand By) Make : BATLIBOI Make at IC Lab 3 X 15 TR Central AC plant (01 No as stand By) Make : ACCELSMC 6-65 installed at Engineer Works Services 3 X 20 TR Central AC plant (01 No as stand By) Make Carrier installed at New assembly hanger 3 X 100TR Chiller plant (01 No as stand By) Make : Bldg No 2 & 5 AC Plant (1 X 15 TR Central AC plant) Make : Bldg No 3D CM AC Plant (3 X 15 TR Central AC plant (01 No as stand By) Make : Super Computer Bldg No P-10 (3 X 8.5 TR Packaged type AC plant (01 No as stand By) NOTE :- (a) The rate deemed includes for minor spares. (b) Compressor oil / refrigerant gas will be measured and paid separately under relevant item of schedule.

Supply and charging of compressor oil servo friz F 68 after draining out old / unserviceable compressor oil complete all as specified and as directed. Make of oil : INDIAN OIL or equivalent in BPCL / HPCL

Supply and Charge refrigerant gas R-22/407C

Supply and Charge refrigerant gas R-134A

Supply and topping up of compressor oil suitable for carrier make screw Chiller (SW 220 grade Synthetic Screw Compressor Oil) complete all as specified and as directed.

Material and labour for descaling of condensing unit up to 100 TR capacity of air-conditioning plants by circulating descaling agent 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 100TR 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 including testing and commissioning for proper functioning complete all as specified and as directed.

Material and labour for disconnecting and removing the condensing pump set up to 5 HP 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 all as specified and as directed.

Material and labour for disconnecting and removing the condensing pump set up to 7.5 HP to 10 HP 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 all as specified and as directed.

Supply and fixing of dual core internal oil filter suitable for 100 TR capacity chiller unit of carrier complete all as specified and as directed. Make : Filtration Level - 3 µ, No. 06NA660028S

Supply and fixing of external oil filter suitable for 100 TR capacity chiller unit of carrier make. Filtration Level - 10 µ. No. 30GX417132E complete all as specified and as directed.

Supply and fixing of drier suitable for 100 TR capacity chiller liquid line. No. XW12EA003 complete all as specified and as directed.

Supply and fixing of V-belt of size Up to B-95 for AC plants of the following sizes including removing of old / unserviceable V belt complete all as specified and as directed.

Supply and fixing of V-belt of size Up to B-95 to B-120 for AC plants of the following sizes including removing of old / unserviceable V belt complete all as specified and as directed.

Material and labour for repair to existing unserviceable / defective PC board from panel carefully with out disturbing the cooling coil and fan motors of 10TR / 8.5 TR / 5.0 TR / 3.0 TR capacity ductable split type AC and taking to workshop for checking / rectifying fault including replacement of unserviceable IC / relay / transformers replacement of wiring etc and bring back to the same location and refixing / connectioning same including testing and commissioning complete installed at various bldgs in GTRE complete all as specified and as directed.

Material and labour for replacement of unserviceable single phase preventer SPPR type SDz5, SPPR + Timer, 415 volts, 50 Hz, Auto Reset, 40 Volts. Unbalance, 1 CO for three phase motor starter type to protect motor from the control panel in AC plants including reconnecting / testing complete all as specified and as directed. Make : L&T Cat No XM81809OOOO or SEIMENS / BCH

Supply and fix new scroll compressor of 4.25 TR capacity suitable for 8.5 TR capacity ductable split unit and making necessary brazing and testing commissioning etc including taking out existing unserviceable compressor complete all as specified and as directed. Make: EMERSON/DANFOSS

Disconnecting and taking down unserviceable starting capacitor from window / split type air-conditioner up to 3 TR capacity and supply and fix new starting capacitor 80 / 100 mfd. suitable for the AC and testing the same for satisfactory performance 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.

Supply and fix new scroll compressor of 5 TR capacity suitable for 10 TR capacity package AC unit and R-22 refrigerant, making necessary brazing and testing commissioning etc including taking out existing unserviceable compressor complete all as specified and as directed.

Supply, install, testing and commissioning of three phase controlling unit to control the switching operation of Air conditioners in an alternative manner with PLC module. Rated current (In) of system is 63A at rated operational Voltage (Ue) of 415V AC ,with rated insulation voltage upto 500V AC voltage. Control unit shall have incomer with R Y B indications and all outgoing ckt shall have SCPD device in series with control devices. Control Unit enclosure shall be fabricated from CRCA sheet with sheet thickness of 1.6mm,finished with impact-resistant grey epoxy powder coating shade RAL7032 with IP54 degree of protection and suitable for wall mounted installations. Enclosure of control unit shall have earthing bolts for safety purpose and shall have detachable gland plates with for entry of cables ,with pad type locking facility also. Control Unit shall be manufactured in India at OEM plant and shall have QMS and EMS certifications like ISO9001, ISO14001 and ISO45001 to ensure good quality product complete all as specified and as directed. Make- INDOASIAN equivalent LEGRAND, SCHNEIDER SIMENS

Supply and fix sub main wiring complete with 2 runs of 4 sqmm PVC Insulated and unsheathed cable with multi stranded copper conductor ISI marked and drawn through and including PVC concealed conduit accessories fixed on walls floors / ceilings etc and connecting terminal ends including 2.5 sqmm PVC insulated unsheathed copper cable green in colour as continuous earth continuity conductor and connecting to earth dolly complete all as specified and as directed. NOTE : Two runs of 4 Sqmm copper cable, one run of earth wire of 2.5 Sqmm copper cable and PVC conduit shall be measured and paid as one length.

Supply and fixing in replacement of Printed Circuit Assembly (PCB) suitable for VRF / VRV type package type air conditioner for the following make / capacity including testing and smooth functioning of the plant on completion of work all complete all as specified and as directed by Engineer-in-Charge.

Supply and fix Printed Circuit Assembly (Main) of capacity 12 TR capacity VRV type package type AC Make: Daikin Model RXYQ12TRY6 Part No. S4901631 or equivalent make as per existing size / capacity

Supply and fix Printed Circuit Assembly (Noise filter) of capacity 12 TR capacity VRV type package type AC Make : Daikin Model RXYQ12TRY6 part No. S4012581 or equivalent make as per existing size / capacity

Supply and fix Printed Circuit Assembly (Inverter) of capacity 12 TR capacity VRV type package type AC Make: Daikin Model RXYQ12TRY6 part No. S4012582 or equivalent make as per existing size / capacity

Supply and fix Printed Circuit Assembly (Fan) of capacity 12 TR capacity VRV type package type AC Make: Daikin Model RXYQ12TRY6 part No. S4012547 or equivalent make as per existing size / capacity

Supply and fix Printed Circuit Assembly (Over voltage Protector) of capacity 12 TR capacity VRV type package type AC Make: Daikin Model RXYQ12TRY6 part No. S4015147 or equivalent make as per existing size / capacity

Supply and fix Printed Circuit Assembly (Main) of capacity 18 TR capacity VRV type package type AC Make: Daikin Model RXYQ18TRY6 part No. S4901631 or equivalent make as per existing size / capacity

Supply and fix Printed Circuit Assembly (fan) of capacity 18 TR capacity VRV type package type AC Make: Daikin Model RXYQ18TRY6 part No. S4012621 or equivalent make as per existing size / capacity

Printed Circuit Assembly (fan) of capacity 18 TR capacity VRV type package type AC Make: Daikin Model RXYQ18TRY6 part No. S4012622 or equivalent make as per existing size / capacity

Supply and fix Printed Circuit Assembly (Inverter) of capacity 18 TR capacity VRV type package type AC Make: Daikin Model RXYQ18TRY6 part No. S4012619 or equivalent make as per existing size / capacity

Supply and fix Printed Circuit Assembly (Inverter) of capacity 18 TR capacity VRV type package type AC Make: Daikin Model RXYQ18TRY6 part No. S4012620 or equivalent make as per existing size / capacity

Printed Circuit Assembly (Noise filter) of capacity 18 TR capacity VRV type package type AC Make: Daikin Model RXYQ18TRY6 part No. S4012544 or equivalent make as per existing size / capacity

Material and labour for disconnecting compressor of 33 TR from the system for maintenance / servicing after closing by suitable dummy plates on suction and discharge valves and opening the compressor and removing of all internal parts, cleaning of the all parts thoroughly, polishing of crank shaft, piston pin including replacement of thrust washers, spring washers and nut bolts etc, and re-fixing back all parts, refixing the compressor in the system and removing of the dummy plates, leak testing of the compressor, testing and commissioning of the compressor complete all as specified and as directed. NOTE : (a) Compressor oil will be measured and paid separately. (b) The rate deemed includes for minor spares.

Material and labour for disconnecting compressor of 20 TR from the system for maintenance / servicing after closing by suitable dummy plates on suction and discharge valves and opening the compressor and removing of all internal parts, cleaning of the all parts thoroughly, polishing of crank shaft, piston pin including replacement of thrust washers, spring washers and nut bolts etc, and re-fixing back all parts, refixing the compressor in the system and removing of the dummy plates, leak testing of the compressor, testing and commissioning of the compressor complete all as specified and as directed. NOTE : (a) Compressor oil will be measured and paid separately. (b) The rate deemed includes for minor spares.

Material and labour for disconnecting compressor of 15 / 16 TR from the system for maintenance / servicing after closing by suitable dummy plates on suction and discharge valves and opening the compressor and removing of all internal parts, cleaning of the all parts thoroughly, polishing of crank shaft, piston pin including replacement of thrust washers, spring washers and nut bolts etc and re-fixing back all parts, refixing the compressor in the system and removing of the dummy plates, leak testing of the compressor, testing and commissioning of the compressor complete all as specified and as directed. NOTE : (a) Compressor oil will be measured and paid separately. (b) The rate deemed includes for minor spares.

Material and labour for disconnecting compressor of 10 TR from the system for maintenance / servicing after closing by suitable dummy plates on suction and discharge valves and opening the compressor and removing of all internal parts, cleaning of the all parts thoroughly, polishing of crank shaft, piston pin including replacement of thrust washers, spring washers and nut bolts etc, and re-fixing back all parts, refixing the compressor in the system and removing of the dummy plates, leak testing of the compressor, testing and commissioning of the compressor complete all as specified and as directed. NOTE : (a) Compressor oil will be measured and paid separately. (b) The rate deemed includes for minor spares.

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

Supply and fix in replacement of teflon seating for existing liquid line ball valve of model No- DN 40/ DN 50 and DN 60 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 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.

Supply and fixing removable type factory made metallic pre-filter of 20 microns of standard size with GI frame both side (size 1430mm x 415mm) including removing of unserviceable metallic pre-filters complete all as specified and as directed. Make: AEROSOL

Supply and fix factory made high performance bag filters of 99 micron down to 5 micron of standard size with multiple pockets and self supporting filters bags with MS / GI anodised aluminium frame suitable for central AC Plant including replacement of bolts and nuts taking down unserviceable complete all as specified and as directed. Make:- Aerosol / Dyna / Maf / Zonflower

Material and labour for pumping down the refrigerant gas from existing AC plant for removing the unserviceable suction valve carefully to avoid gas leakage and supply and fix new suction valve upto 80mm dia complete all as specified and as directed.

Material and labour for pumping down the refrigerant gas from existing AC plant for removing the unserviceable discharge valve carefully to avoid gas leakage and supply and fix new discharge valve upto 80mm dia complete all as specified and as directed.

RAHUL ENTERPRISES (BID ID -3075909)

M/S J J ENTERPRISES (BID ID -3094414)

Glacier Cooling Solutions Private Limited (BID ID -3087856)

R Tech Mech (BID ID -3087159)