REPAIR MAINT OF CENTRAL AC PLANT, 360TR AT ADMC AND CONNECTED WORKS UNDER GE (NORTH) BANGALORE

Amount

Dismantling existing cooling tower side cover carefully without damaging the other portion of cooling tower removing U/S PVC fills carefully from cooling tower supply and fix PVC fills for 200 TR capacity cooling tower including replacement of Unserviceable bolts and Nuts complete all as directed.

Supply and fix removable type factory made metallic pre-filters of 20 micron of standard size lift GI frame both side including taking out U/S metallic pre - filters complete all as directed. Make- Acrosol /Dyna/ Johnflower/ MAF

Supply and fix factory made high performance bag filters of 99 micron down to 5 micron standard size with multiple pockets and self supporting filter bags with MS/GI anodized aluminium frame suitable for central AC plant including replacement of bolts and nuts and taking down U/S bag filters complete all as directed. Make- Acrosol/MAF/Dyna/Johnflower

Supply and fix water pressure gauges of any size up to 0- 300 PSI/0-150Kg cm² capacity including taking out U/S water pressure gauge complete all as directed. Make- KI/ H-Guru/Feibig/Adarsh

Supply and charge R-22 Refrigerant Gas Make Floron /refron /mefron complete all as directed.

Supply and fix AC power contactors 3 pole 415 volts 50 Hz of the following capacity including taking out U/S contactor etc complete all as directed. Make- L&T /Siemens/BCH/CSS (a) 33 Amps to 63 A capacity MNX-32 ,440 Volts AC Supply

All as per item No 6.1 hereinbefore but 95 capacity MNX-95Amps, 440 Volts.

Disconnecting and isolating the compressor of Voltas 5H-120 model compressor from the system by putting dummy plates to suction and discharge valves opening of the compressor, removing of internal parts cleaning of the all parts thoroughly, replacement of Thrust washers O rings minor parts like Nuts, Bolts etc and assembling back all the serviceable parts removing of the dummy plate of the compressor, testing of compressor complete all as directed. Note: (i) Spare parts & consumable will be measured & paid separately (ii) charging of compressor oil will be measured and paid separately.

Supply and fixing the following spares for model Voltas 5H-120 compressor including taking down old unserviceable spare parts complete all as directed. (a) Main bearing pump and seal end

(b) Cylinder liner

(c) Connecting rod

(d) Discharge valve assembly

(e) Piston assembly

(f) Oil pump assembly

(g) Valve plate assembly

(h) Gasket set

(j) Oil filter

(k) SV reeds

(l) CR bearing

(m) SV spring

(n) pressure release valve

Descaling of condensing unit of 120 TR capacity of air conditioning plants by circulating descaling agent (HCL) through the condenser by forced feed method, removing of the end cover of the condenser cleaning of each tube of condenser thoroughly by the brushing refixing back the end cover of the condenser by removing of the rubber gasket, nuts bolts washers cleaning of spray nozzles, cooling tower cup, water line. Strainer and testing spray nozzle working pressure complete all as directed.

Evacuation refrigerant gas from the system in to the empty cylinder of 120 TR capacity of air conditioning plants leak testing of the plant with dry nitrogen (N2) pressure by separating the entire system like low side high side, compressors, condensers and rectifying the leakage vaccummising, recharging of evacuated refrigerant gas testing and brazing of cooling coil complete all as directed. Note: (i) Supply of refrigerant gas & consumable will be measured and paid separately (ii) Installed capacity of the plant to be considered.

Supply and fixing of the following pressure cut-outs including dismantling of unserviceable cut-outs complete all as directed. Make- Indfoss / Danfoss (a) HP/LP Cut-outs

(b) Oil Pressure cut-outs

(c ) Water pressure cut-outs

Disconnecting and removing the centrifugal monoblock pump set 15HP Capacity 3 phase 415 Volts from the existing position transporting to workshop, opening up check the pump winding ,cutting and removing of the burnt out winding, rewinding with same size of gauge of super enamelled copper conductor ,insulating, varnishing greasing and replacing of ball bearing 2 Nos, reassembling ,including cleaning, oiling, greasing of internal parts, replacing of worn out nut , bolts, gland packing etc testing for proper functioning ,bring back to site re fixing back in the same position including replacement of gland packing worn out nuts bolts etc, and testing and commissioning complete all as directed.

Supply and fix pressure gauge of any size up to 0 to 300 PSI/0-150kg/sqcm capacity including taking down unserviceable pressure gauge complete all as directed.

Supply and fix PVC Ball valve high pressure with polythene float complete of size 25 mm dia including taking down unserviceable float valve etc complete all as directed. Make Prayag/Zoloto/Polytuff/Shakti

Supply and fixing of shaft seal assembly 5H 120 of any make and model of compressor including removing of the unserviceable shaft seal assembly and testing complete all as directed.

Removing/Replacement of AHU Belt SPA 1550 complete all as directed.

Removing/Replacement of AHU Belt SPA 1700 complete all as directed.

Removing/Replacement of AHU Belt SPA 1360 complete all as directed.

Removing/Replacement of AHU Belt SPA 1220 complete all as directed.

Removing/Replacement of AHU Belt SPA 1600 complete all as directed.

Removing/Replacement of Pressure gauge 0-100 PSI complete all as directed.

Removing/Replacement of fix Ceiling Psychomotor complete all as directed.

Supply and fix rubber tyre coupling suitable for 120 TR capacity compressors motor including taking out U/S rubber coupling complete all as directed.

Supply and charge compressor oil servo frizol F-68 grade of IOC/BPCL / Hindustan petroleum complete all as directed.

mahadevi Enterprises