REPAIR AND MAINT OF AC PLANT INCL ALLIED WORKS UNDER GE (AF) ADM AREA AGRA

Amount

Disconnecting water connections to the condenser of package/central A/C plant of following capacity by dismantling the both end cover of condenser. Descaling the condenser of compressors with dilute sulphuric acid and flushing/cleaning with brush and water and re-fixing the side cover with new gasket nut / bolts and detect leakage all as specified and directed. Note : Dilute sulphuric acid for descaling is deemed to be included in the quoted rates.

Material and Labour for Servicing/Cleaning of FRP cooling towers of following capacity by dismantling top cover, fan with fan motor and removing the honey comb frills. Cleaning of base tray & frills, pot strainer etc. servicing of fan motor with changing of bearings and greesing refixing the fan, frill & top cover testing commissioning complete all as directed. Note : Spares as required during the servicing and repairs as declared unservicable by Engr in charge shall be measured and paid under relavant items of this schdule.

a) 11 TR to 50 TR

Supply and filling of R-407 C gas in package A/C plants all as directed.

Supply and fixing in replacement of defective pressure guage of suitable size for measuring pressure upto 150 PSI suitable for fixing on 80/100 mm dia CI pipe all as specified and directed.

Dismantling, Removing the unserviciable HP/LP cutout switch from packaged ac plant of any make & supply & fix new HP/LP cutout switch for A/C plant all as directed.

Supply & fixing in replacement of over load relays type MK1 of range 2.5 -4 A complete all as specified .Make : L & T or equvilant to BCH/SIMENS

Supply & fixing in replacement of over load relays type MK1 of range 5- 6.5 A complete all as specified. Make : L & T or equvilant to BCH/SIMENS

Supply & fixing of MCCB 63 Amps 25KA, TP (ICS=100%ICU) with Adjustable thermal magnetic release in the control panels including dismantling of old unsv MCCBs/SFU fuse unit complete Make :- L & T or equvilant to ABB/Legrand

Supply & fixing of MCCB 100 Amps 25 KA, TP (ICS=100%ICU) with Adjustable thermal magnetic release in the control panels including dismantling of old unsv MCCBs/SFU fuse unit complete Make :- L & T or equvilant to ABB/Legrand

Supply & fixing of MCCB 125 Amps 25KA, TP (ICS=100%ICU) with Adjustable thermal magnetic release in the control panels including dismantling of old unsv MCCBs/SFU fuse unit complete Make :- L & T or equvilant to ABB/Legrand

Supply & fixing in replacement of Display unit of packaged AC Plant of 5.5 TR to 16.5 TR complete all as spd and directed.

M&L only for detection of leakage and repairing of packaged type AC Plant of capacity 5.5 TR TO 16.5 TR capacity by leak testing, leak repairing, pressure testing with nitrogen, vaccumising complete system of central type AC plant with double stage vaccume pump of atmospheric pressure less than 28 to 30mm HG and charging of refrigerant gas upto required pressure after satisfactory results complete all as spd and directed

Supply and fixing of filter drier of DCL hermetic type suitable for 5.5 TR Packaged AC plant.Make-Danfoss DCL 083 or equivalent in Emerson.

Supply and fixing in replacement of existing unsv SG iron butterfly valve of pressure handling capacity 13- 20 Kg/ cm2 suitable for 100 mm CI tubing complete all as specified and directed.Make :- Zoloto/ Aquaflow or equivalent.

Supply and fixing in replacement of existing unsv SG iron butterfly valve of pressure handling capacity 13- 20 Kg/ cm2 suitable for 80/ 75 mm CI tubing complete all as specified and directed.Make :- Zoloto/ Aquaflow or equivalent.

Supply, laying, connecting and testing in replacement of existing unsv CI pipe110/ 100 mm bore centrifugally cast, class-B both ends flanged type confirming to IS -1556- 2001 complete all as specified and directed. Make:- Jindal/ Tata/ BST/ Prakash Tubes.

Supply, laying, connecting and testing in replacement of existing unsv CI pipe 75/ 80 mm bore centrifugally cast, class-B both ends flanged type confirming to IS -1556- 2001 complete all as specified and directed. Make:- Jindal/ Tata/ BST/ Prakash Tubes.

S & F in replacement of exiting unsv rotational moulded polyethylene water storage tank of 1000 ltrs capacity ( cylindrical vertical with closed top) hoisted and fixed in position all as spd in SSR Part-I.

Supply and Fix thermostatic expansion valve of existing make suitable for upto 16.5 TR capacity air conditioning plants. including taking down the unserviceble valve.

Taking down carefully and overhauling of Monoblock pump of capacity upto 3 HP by disconnecting the pump from foundation and pipe line, dismantling of shaft from the pump, replacing the unserviceable wornout bearing, gland packing, seal,impeller and bushing and assembling after repairs complete testing to entire satisfaction complete all as spd and directed. Note:- Spares required for overhauling such as bearing, gland packing, bushing, seal etc shall be part of job.

Material and Labour for disconnection/dismantling of electric motor 3 Phase, 415 Volt capacity upto 3 HP from installation & transporting to workshop for rewinding , taking out old unserviceable burnt winding and rewinding the same with super enamelled copper wire 'H' Class of same size to get the same output of motor including material such as varnish, sleeves, leothariod paper etc and refixing the same in position with proper alignment, balancing and testing complete all as specified and directed.

Material and Labour for disconnection/dismantling of electric motor 3 Phase, 415 Volt capacity 5 HP from installation & transporting to workshop for rewinding , taking out old unserviceable burnt winding and rewinding the same with super enamelled copper wire 'H' Class of same size to get the same output of motor including material such as varnish, sleeves, leothariod paper etc and refixing the same in position with proper alignment, balancing and testing complete all as specified and directed.

Supply and fixing of V belt of A 28 size in replacement of the existing unserviceable worn out belt complete all as spd and directd. Make:- Fenner.

Material and Labour in replacement of 20 mm bore GI pipe medium grade incl all fitting and acessories complete all as directed.

Supply and fix in replacement gun metal globe or gate valve suitable for 20 mm diameter GI pipe with iron wheel head screwed both ends for iron pipe complete all as spd and directed.

Supply & fix in replacement float valve/ball type assembly complete of size 20 mm size dia. Complete all as spd and direced.

Painting of CI/GI/MS pipes of Air / Water distribution of size 100 / 80 mm dia along with side supports complete with two coats of synthetic enamel paint all as per colour code directed.

Material and Labour for earthing complete with galvanized steel earth plate Electrode 600mm x 600mm x 6mm thick buried directly in ground earth pit not less than 2.25 meters deep below ground level with top edge of the plate not less than 1.5mt below GL connected to 32 x 6mm GI streep upto 7.5 m long by mean of GI bolts ,nuts,check nuts & wasters and connected to earthing test point & earth dolly all as shown in electrical plate No 3 of SSR part I 2009 & as specified and testing on completion including earth work & excavation in any type of strata , PCC (1:3:6) type chamber precast slab 50mm thick in cement concrete (1:2:4) type B1 (reinforced with welded steel wire fabric of XPM, weight not less than 4 Kg /Sqm) with cast iron frame ,funnel with water pipe of 20mm dia GI medium grade , wire mesh and lugs etc complete all as directed.

Supply and fix Earth continuity conductor or main earthing lead of size 25 x 3mm Aluminium strip fixed to wall on poreclion/PVC insulator buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthling etc. incl removal of old strips as required all as specified and directed

Material and Labour for Copper piping 5/8" (18/20 gauges) with necessary fitting such as elbow bends sockets and tee's , clamps and supports on wall and grounds complete all as spd and direced.

Material and Labour for Copper piping 1/4" with necessary fitting such as elbow bends sockets and tee's , clamps and supports on wall and grounds complete all as spd and direced.

Supply , laying,commissioning and testing XLPE insulated ,armoured heavy duty electric cable Aluminium conductor, 1100 volt cross sectional area 95 Sqmm 3.5 core incl removing unserviceable/old cable complete all as specified and as directed. Make: Polycab/Finolex /Paragaon/Havells

Supply , laying,commissioning and testing XLPE insulated ,armoured heavy duty electric cable Aluminium conductor, 1100 volt cross sectional area 4 Sqmm 4 core incl removing unserviceable/old cable complete all as specified and as directed. Make: Polycab/Finolex /Paragaon/Havells

Material and labour for fabrication and installation of Sign board of size (1.5x 2m) made of Flex/Acrylic board, with computer imaging matter is directed by engr-in charge at one side of the board, GI plain sheet, cubicle housing, having arrangement to open the flex/Acrylic board and suitable for mounting on wall complete all as directed. Note :- The cost of Fabrication and welding work is included in the quoted rate .

Supply and fix in replacement fully DOL starter suitable for 3 phase 400/440 volts 50 cycles/seconds for 2 to 3 HP capacity Motor all as spd and directed. Make :L &T/ Havell/ Seimens.

M&L for replacement of existing U/S single phase preventor complete all as spd and directed. Make : Minilec or equivalent.

Supply and fixing of electrostatic scale preventer on the existing stainless steel pipe line of 100 mm diameter complete all as specified and directed.Make-Weldon

Supply and fixing of thermometer to be installed at the CI water main lines of 80 mm diameter all as specified and directed.

Supply and fixing in replacement existing unsv 3 phase, 415 volts, 3 HP centrifugal motor and pump set as per existing or suitable for existing capacity AC plant complete all as spd and directed. Note :- Existing unsv motor and pump set deposited to MES store yard for further disposal.

Supply and fixing in replacement existing unsv 3 phase, 415 volts, 5 HP centrifugal motor and pump set as per existing or suitable for existing capacity AC plant cooling tower with finges complete all as spd and directed. Note :- Existing unsv motor and pump set deposited to MES store yard for further disposal.

S & F in replacement of existing unsv submersible pump set suitable for Big desert cooler 40 watts 1100 LPH suitable for 220-240 volts complete all as spd.

S & F in replacement of existing unsv cooling tower fan complete with mounting arrangement with existing motor complete all as spd and directed.

Uma engineers

M/S J J ENTERPRISES

H.S.Kochhar n Sons