MAINTENANCE TO CENTRAL AIR CONDITIONING PLANT AND REPAIRS TO SOME OTHER COOLING APPLIANCES AND MISCELLANEOUS ITEMS AT AF STATION BHUJ

Amount

M&L for Preventive maintenance of LT panel of any size including tightening the connections of cable from MCCB / Contactor / switches, replacing all lug with new of any size aluminium / copper, replacing the complete internal wiring, copper cable by 16 Sqmm single core FRLS multistranded connection between MCCBs and connector , contactors , replacing connector of size 40 Amps to 100 Ams, TPN set by new connectors complete all as specified and directed. Note : Material such as 16 Sqmm copper wire, connector , contactor, MCB, MCCBs, Starters, phase preventer will be measured and paid saperately.

Supply and fix in replacement DOL starter 7.5/10 HP adjustable, 415V, 50Hz, 3 phase all as specified and directed by Engineer - in - charge. Make:- L&T/ Havells / Alstrome

S & F in replacement fully Automatic Stare Delta starter with single phase protection suitable for compressor motor of 20 HP capacity all as specified and directed by Engineer - in - charge. Make:- L & T / Havells / Alstrome

S & F in replacement thermal overload relay (Auto / manual reset) for power contactor type NO/ NC having variable relay range upto 12 Amps, 3 Phase, 415 Volt all as per existing installed on site and as specified and directed by Engineer - in - charge. Make : Havells , L&T, Stranded or equivalent from Appx 'B'.

S & F in replacement thermal overload relay (Auto / manual reset) for power contactor type NO/ NC having variable relay range from 12 Amps to 18 Amps 3 Phase, 415 Volt all as per existing installed on site and as specified and directed by Engineer - in - charge. Make : Havells / L&T / ABB / Schinider

S & F in replacement thermal overload relay (Auto / manual reset) for power contactor type NO/ NC having variable relay range from 17 Amps to 25 Amps 3 Phase, 415 Volt all as per existing installed on site and as specified and directed by Engineer - in - charge. Make : Havells / L&T / ABB / Schinider

S & F in replacement MCCBs 415 Volts, 3 Pole Fixed type 100 Amps with Braking capacity 25 KA all as specified and directed by Engineer - in - charge. Make : Havells , L&T, Stranded or equivalent from Appx 'B'.

S & F in replacement MCCBs 415 Volts, 3 Pole Fixed type to 125 Amps with Braking capacity 35 KA all as specified and directed by Engineer - in - charge. Make : Havells , L&T, Stranded or equivalent from Appx 'B'.

S & F in replacement MCCBs 415 Volts, 4 Pole Fixed type 160 Amps with Braking capacity 35 KA all as specified and directed by Engineer - in - charge. Make : Havells , L&T, or equivalent from Appx 'B'.

S & F in replacement MCCBs 415 Volts, 4 Pole Fixed type 250 Amps with Braking capacity 35 KA all as specified and directed by Engineer - in - charge. Make :Havells , L&T, or equivalent from Appx 'B'.

S & F in replacement MCB 415 Volts, 3 Pole Fixed type 40 Amps with Braking capacity 10 KA all as specified and directed by Engineer - in - charge. Make : Havells/ L&T/ABB or equivalent from Appx 'B'.

S & F in replacement MCB 415 Volts, 3 Pole Fixed type 63 Amps with Braking capacity 10 KA all as specified and directed by Engineer - in - charge. Make:- L & T / Havells / ABB/ or equivalent from Appx 'B'.

S & F in replacement Single phase preventer relay with settable time on delay 6/7 wire , 415 V SPPR type SDz5 all as specified and directed by Engineer-in-charge. Make:- L & T / Havells / ABB/ Schinider as per existing installed on site

S & F in replacement 3 pole power contactor AC, 415 V ,25 Amps type NO/NC built in surge, along with auxiliary contactor as per installed / existing all as specified and directed by Engineer - in - charge. Make:- L & T / Havells / ABB/ Schinider as per existing installed on site

S & F in replacement 3 pole power contactor AC, 415 V ,32Amps-40Amps type NO/NC built in surge, along with auxiliary contactor as per installed / existing all as specified and directed by Engineer - in - charge. Make:- L & T / Havells / ABB/ Schinider as per existing installed on site

S & F in replacement 3 pole power contactor AC, 415 V ,65Amps type NO/NC built in surge along with auxiliary contactor / Add on block (mini contactor) as per installed / existing all as specified and directed by Engineer - in - charge. Make: L&T/Havells/ABB/Schinider as per existing installed on site

S & F in replacement 3 pole power contactor AC, 415 V ,95Amps type NO/NC built in surge along with auxiliary contactor / Add on block (mini contactor) all as specified and directed by Engineer - in - charge. Make:- L & T / Havells / ABB/ Schinider as per existing installed on site

S & F in replacement FRLS copper cable three run of single core multistranded 16 Sqmm along with copper ring lugs all as specified and directed by Engineer-in-charge. Make:- Havells/ Anchor / Polycab or equivalent from Appx 'B'.

Supply and fix in replacement three phase cable connector with base strip 415 volts, TPN set 63 Amps all as specified and directed by Engineer-in-charge.

Supply and fix in replacement three phase cable connector with base strip 415 volts, TPN 100 Amps as specified and directed by Engineer-in-charge.

Taking down U/S panel & Supply, fabricate, test and commissioning, installation with cable new lugs incoming and outgoing of LT electrical outdoor distribution panel board floor mounted cubical type dust proof, weather proof, vermin proof, astehically desiggned, having at least IP-54 degree of ingress protection, fabricated from 3.15mm thick CRCA sheet with front and rear opening including bus bar chamber, continuous GI strip earth bus bar 4 strips of copper bus bar 600 Amps capacity, insulated color sleeves, procelain/epoxy insulators, rail channels cable alloy, danger notice board including made out of 14 gauge MS sheet over angle iron frame of size 40 x 40 x 6mm, 30 cm grouted in ground floor and 30 cm above GL including necessary excavation, foundation, PCC etc complete with locking arrangement duly powder coated painted of approved color connecting incoming & outgoing cable connection with suitable lugs, nuts, bolts, washers and cable joints, prewired complete with PVC insulated fire retardant copper conductor cable complete including:-

S & F in replacement fan belts V shape of size B-79 having nylone thread reinforced and skid tigh tensile strength, notchs for proper griping on pully or wheel all as directed by Engineer in charge. Make: Fenner/Pix

All as per item No.22 above but of size B-70

All as per item No.22 above but of size B-76

All as per item No.22 above but of size B-57

All as per item No.22 above but of size B-54

All as per item No.22 above but of size A-31

All as per item No.22 above but of size A-28

M & L for opening outdoor unit at site taking out unservisible condenser motor, Supply and fix in replacement burnt out unservisible condenser motor 0.37 Kw (0.5 HP), 230 V 50 HZ, 900 - 1000 rpm IP 55 single phase Frame B48, model no GF 4529 from outdoor unit of package type AC plant complete all as specified and directed. Make : - Hindustan Electric/CG/Kirlosker

M & L for opening outdoor unit at site taking out broken / defective condenser motor fan blade size 450 mm sweep , Supply and fix in replacement, testing condenser motor fan blade size 450 mm ( 3/ 4 blade ) suitable for 0.37 Kw (0.45 HP), 230 V 50 HZ, IP 55 single phase condenser motor sweep package type AC plant all as specified and directed by engineer - in charge.

Suply and fix in replacement Dry all liquid line filter drier , working temperature range -400C to 800C, for respective capacity 5.5 TR to 12 TR AC plants with both end leak proof connection to liquid line all as per Engineer - in - charge. Make : Danfoss or equivalent from Appx 'B'.

Supply and fix in repairs expansion valve of capacity 5.5 TR / 6 TR all as per Engineer - in - charge. Make:- Danfoss/Sporn/Emerson or equivalent from Appx 'B'.

Supply and fix in repairs expansion valve of capacity 8.5 TR / 9 TR complete all as specified and directed. Make:- Danfoss/Sporn/Emerson or equivalent from Appx 'B'.

Supply and fix in repairs expansion valve of capacity 11 TR /12 TRcomplete all as specified and directed. Make:- Danfoss/Sporn/Emerson or equivalent from Appx 'B'.

S & F in replacement remot control set with remot circuit panel and suitable cord for Tower / wall mounted room air conditioner 4TR capacity all as specified and directed by engineer - in - charge. Make : Voltas / Blue star/BSC or or equivalent from Appx 'B'.

Supply and fix in replacement remote control circuit set, electric panel and suitable cord including sensors , controller for package type AC plant 15 TR to 30 TR for controling temperature, cutoff compressor, on / off mode, fan swing with digital indicator / display by sensing all paremeters all as specified and directed by engineer in charge. Make: Voltas/ BSC / Indfos/ Denfos or equivalent from Appx 'B'.

M & L for opening air handling unit in AHU room , taking out air blower cuppled with 3HP to 10 HP electric motor, Supply and fix in replacement new central rotating shaft ( impeller) along with new bearing pillow block on both side with respective ball bearing for bolwer shaft ( impeller) , on both side size inner dia 25 /65 mm, greasing, , testing and refixing same blower in air handling unit, closing air handling unit same as original all as specified and directed by Engineer - in - charge Make:- NBC or equivalent from Appx 'B'.

M & L for tracing out leakage location in AC plant refrigerant circuit ( suction /delivery line condenser line, valves, connection location) rectifying the leakage location by brazing / soldering and Supply and filling refrigerant gas R-22 lossed in leakage / repair/ maint work including testing of pressure level, leakage. Make : Mafron / Refron

M & L for tracing out leakage location in AC plant refrigerant circuit( suction /delivery line condenser line, valves, connection location) rectifying the leakage location by brazing / soldering and Supply and filling refrigrant gas R-410A lossed in leakage / repair/ maint work including testing of pressure level, leakage .Make : Mafron / Refron

M & L for tracing out leakage location in AC plant refrigerant circuit( suction /delivery line condenser line, valves, connection location) rectifying the leakage location by brazing / soldering and Supply and filling refrigerant gas R-407 lossed in leakage / repair/ maint work including testing of pressure level, leakage. Make : Mafron / Refron

M & L for disconnecting old unservisible compressor including electrical wire connection , suction and delivery line from installed location, fix in replacement of scroll compressor capacity 4.0/4.5/5.0 TR for Gas R-22/ R407C/R410 for split type tower / casset AC / package type AC including fixing , connection & out going pipe, pressure testing, welding, brazing connection basing etc all as originally fixed, specified and directed by Engineer-in -charge. Note: Refrigerant gas will be measured and paid saperately.

M & L for disconnecting old unservisible compressor including electrical wire connection , suction and delivery line from installed location, fix in replacement of scroll compressor of 5.5 TR capacity model no HLJ072T4___ as in air/water cooled chilled based split type AC plant/ package type AC including fixing , connection & out going pipe, pressure testing, welding, brazing connection basing etc all as originally fixed, specified and directed by Engineer-in -charge. Note: Refrigerant gas will be measured and paid saperately.

M & L for disconnecting old unservisible compressor including electrical wire connection , suction and delivery line from installed location, fix in replacement of scroll compressor of 5.5TR capacity model no CSB453___ in air/water cooled chilled based split type AC plant/ package type AC including fixing , connection & out going pipe, pressure testing, welding, brazing connection basing etc all as originally fixed, specified and directed by Engineer-in -charge. Note: Material such as Compressor and Refrigerant gas will be measured and paid saperately.

M & L for disconnecting old unservisible compressor including electrical wire connection , suction and delivery line from installed location, fix in replacement of scroll compressor of 8.75 TR capacity model no CSC673___ in air/water cooled chilled based split type AC plant/ package type AC including fixing , connection & out going pipe, pressure testing, welding, brazing connection basing etc all as originally fixed, specified and directed by Engineer-in -charge. Note: Refrigerant gas will be measured and paid saperately.

M & L for disconnecting old unservisible compressor including electrical wire connection , suction and delivery line from installed location, fix in replacement of scroll compressor of 8.75 TR capacity model no SM120S4___ in air/water cooled chilled based split type AC plant/ package type AC including fixing , connection & out going pipe, pressure testing, welding, brazing connection basing etc all as originally fixed, specified and directed by Engineer-in -charge. Note: Refrigerant gas will be measured and paid saperately.

M & L for disconnecting old unservisible compressor including electrical wire connection , suction and delivery line from installed location, fix in replacement of scroll compressor having thread end (flare end) for suction and delivery of 12 TR capacity model no SM185S4____ in air/water cooled chilled based split type AC plant/ package type AC including fixing , connection & out going pipe, pressure testing, welding, brazing connection basing etc all as originally fixed, specified and directed by Engineer-in -charge. Note: Refrigerant gas will be measured and paid saperately.

M & L for disconnecting old unservisible compressor including electrical wire connection , suction and delivery line from installed location, fix in replacement of scroll compressor having thread end (flare end) for suction and delivery of 12 TR capacity model no SZ185S4__ in air/water cooled chilled based split type AC plant/ package type AC including fixing , connection & out going pipe, pressure testing, welding, brazing connection basing etc all as originally fixed, specified and directed by Engineer-in -charge. Note: Refrigerant gas will be measured and paid saperately.

Disconnecting the electric connection of the defective motor of any make from panel board , dismentling from centrifugal pumping set/ bolwer / colling tower, transporting to workshop and dismentling motor , taking out burnt copper winding of motor, cleaning the casing, pump with wire brush, rewinding the motor using PVC insulated copper wire of existing gauge, re-assembling the motor to its original form, after replacement of defective parts as its original parts , bringing back to site of work, reconnecting electrical connection , recoupling with centrifugal pump set for satisfaction running to the satisfactory of Engineer - in - charge for the capacities 7.5 HP to 10 HP of motors .

All as per item no 48 but of capacity 5 HP

All as per item no 48 but of capaci 2 HP to 3 HP

Supply & fix in repair blower fan motor foot mounted complete pully, Nut bolt & washer suitable for AHU capacity 3 HP three phase 415 V, minimum 2500 RPM, 2 pole, IP 55, Copper winding induction motor heavy duty S1 for long run having efficiency minimum 75 % with complete with complete with cast iron angle stand assembly. Make : Crompton Greaves / Hindustan Electric Motors / NBE Motors Pvt. Ltd.

M & L for descaling of condenser shell and tube using suitable chemical solution and feeding in a cyclic way by high pressure pump for 30 min and cleaning outer part with brush and rod by suitable method including supply and fixing rubber gasket all as directed by engineer in charge.

Supply and fix in replacemet PVC fills (Half / Full) to its original quantity and position of cooling tower modular construction FRP type of capacity 30TR-50TR all as directed by engineer in charge.

supply and lay GI tubing medium grade of dia 40 mm including all fitting such as elbow, tee, socket , cutting, threading complete all as specified and directed by engineer -in- charge. Make :- TATA/JINDAL/SURYA PRAKASH.

Supply and fix pipe ERW steel nominal dia 100 mm as per IS marked complete all as specified and directed by engineer-in-charge. Make :- TATA/JINDAL/SURYA PRAKASH.

Supply and fix pipe ERW steel nominal dia 80 mm as per IS marked complete all as specified and directed by engineer-in-charge. Make :- TATA/JINDAL/SURYA PRAKASH.

Supply and fix SG iron butterfly valve 80 mm dia IS marked complete all as specified and directed by enginneer-in-charge. Make- Zoloto or equivalent from Appx 'B'.

Supply and fix SG iron butterfly valve 80 mm dia IS marked complete all as specified and directed by Enginneer-in-charge. Make- Zoloto or equivalent from Appx 'B'.

Supply and fix MS flange 80 mm dia , IS marked complete all as specified and directed by engineer-in-charge. Make :- TATA/JINDAL/SURYA PRAKASH.

Supply and fix MS bend 100 mm dia , IS marked complete all as specified and directed by engineer-in-charge. Make :- TATA/JINDAL/SURYA PRAKASH.

S & F in repair following acessories of control panne for water cooler package Air Conditioning unit of 7.5 TR (x8.75 TR) Capacity (a) 3 pole power contactor AC, 415 V, 32-40 Amps type NO/NC built in surge, along with auxiliary contactor - 03 Nos . (Make - Siemens/ABB/Havells. (b) Thermal overload relay (Auto/Manual reset) for power contactor type NO/NC having variable relay range from 17 to 25 Amps 3 Phase, 415 V - 03 Nos (Make - Siemens/ABB/Havells. (c) Interconnection wiring acessories like connector. wire etc.

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