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.

S & F in repair 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.

S & F in repair 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.

S & F in repair 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. Note for item No.2 to 3: Make shall be provided as per existing make and as approved by GE.

S & F in repair MCCBs 415 Volts, 3 Pole Fixed type 100 Amps with Braking capacity 25 KA all as specified and directed by Engineer-in-charge.

S & F in repair MCCBs 415 Volts, 3 Pole Fixed type to 125 Amps with Braking capacity 35 KA all as specified and directed by Engineer-in-charge.

S & F in repair MCCBs 415 Volts, 4 Pole Fixed type 160 Amps with Braking capacity 35 KA all as specified and directed by Engineer-in-charge.

S & F in repair MCCBs 415 Volts, 4 Pole Fixed type 250 Amps with Braking capacity 35 KA all as specified and directed by Engineer-in-charge.

S & F in repair MCB 415 Volts, 3 Pole Fixed type 40 Amps with Braking capacity 10 KA all as specified and directed by Engineer-in-charge.

S & F in repair MCB 415 Volts, 3 Pole Fixed type 63 Amps with Braking capacity 10 KA all as specified and directed by Engineer-in-charge.

S & F in repair 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.

S & F in repair 3 pole power contactor AC, 415 V ,9 Amps type NO/NC built in surge, along with auxiliary contactor as per installed / existing all as specified and directed by Engineer-in-charge.

S & F in repair 3 pole power contactor AC, 415 V, 12 Amps type NO/NC built in surge, along with auxiliary contactor as per installed / existing all as specified and directed by Engineer-in-charge.

S & F in repair 3 pole power contactor AC, 415 V, 18 Amps type NO/NC built in surge along with auxiliary contactor as per installed / existing all as specified and directed by Engineer-in-charge.

S & F in repair 3 pole power contactor AC, 415 V, 25 Amps type NO/NC built in surge along with auxiliary contactor all as specified and directed by Engineer-in-charge.

S & F in repair 3 pole power contactor AC, 415 V, 32 to 40 Amps type NO/NC built in surge along with auxiliary contactor all as specified and directed by Engineer-in-charge.

S & F in repair 3 pole power contactor AC, 415 V, 65 Amps type NO/NC built in surge along with auxiliary contactor / Add on block (mino contactor) all as specified and directed by Engineer-in-charge.

S & F in repair 3 pole power contactor AC, 415 V, 95 Amps type NO/NC built in surge along with auxiliary contactor / Add on block (mino contactor) all as specified and directed by Engineer-in-charge. Note for item No.12 to 18: Make shall be provided as per existing make and as approved by GE.

S & F in repair 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.

S & F in repair three phase cable connector with base strip 415 volts, TPN set 63 Amps all as specified and directed by Engineer-in-charge.

S & F in repair three phase cable connector with base strip 415 volts, TPN 100 Amps as specified and directed by Engineer-in-charge.

S & F in repair 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. Note: Make shall be provided as per existing make and as approved by GE.

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, S & F in repair burnt out unservisible condenser motor 0.37 Kw (0.5 HP), 230 V 50 HZ, 900 - 1000 rpm single phase from outdoor unit of package type AC plant complete all as specified and directed. Note: Make shall be provided as per existing make and as approved by GE.

M & L for opening outdoor unit at site taking out broken / defective condenser motor fan blade size 450 mm sweep , S & F in repair, 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 repair 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. Note: Make shall be provided as per existing make and as approved by GE.

S & F in repairs expansion valve of capacity 5.5 TR / 6 TR all as per Engineer-in-charge.

S & F in repairs expansion valve of capacity 8.5 TR / 9 TR complete all as specified and directed.

S & F in repairs expansion valve of capacity 11 TR /12 TRcomplete all as specified and directed. Note for item No.32 to 34: Make shall be provided as per existing make and as approved by GE.

S & F in repair liquid valve of size 5'/8 complete all as specified and directed by Engr-In-Charge. Note : Make shall be provided as per existing make and as approved by GE.

S & F in repair remote 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. Note : Make shall be provided as per existing make and as approved by GE.

S & F in repair remote control circuit set, electric panel and suitable cord including sensors , controller for package type AC plant 8.75 TR to 12 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. Note : Make shall be provided as per existing make and as approved by GE.

M & L for opening air handling unit in AHU room , taking out air blower cuppled with 3HP to 10 HP electric motor, S & F in repair 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.

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.

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.

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.

M & L for disconnecting old unservisible compressor including electrical wire connection , suction and delivery line from installed location, fix in repair 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. Note : Make shall be provided as per existing make and as approved by GE.

M & L for disconnecting old unservisible compressor including electrical wire connection , suction and delivery line from installed location, fix in repair 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 repair 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 repair 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 repair 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 repair of scroll compressor having thread end (flare end) for suction and delivery of 11 TR capacity model no SM147S4____ 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 repair 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 repair 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 repair 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 50 but of capacity 5 HP

All as per item no 50 but of capaci 2 HP to 3 HP

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 S & Fing rubber gasket all as directed by engineer in charge.

S & F in repair 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.

S & F in repair of Copper condenser installed in outdoor of 11TR Package/Central type AC plant having dimension of 142 x 92 mm , fitted with 18x2x2 no of runs. including connection of suction and delivery line, pressure testing all as directed by engineer in charge.

S & F in repair CT Fan complete section Fan, Fan Dia-1200 mm, connected GI nut bolts and accessories all fitting suitable for 60 TR cooling tower complete all as specified and as directed. Note : Make shall be provided as per existing make and as approved by GE.

S & F in repair CT Fan complete section Fan, Fan Dia-900 mm, connected GI nut bolts and accessories all fitting suitable for 35 TR cooling tower complete all as specified and as directed. Note : Make shall be provided as per existing make and as approved by GE.

S & F in repair all accessories corrosion proof PVC Filling, inlet louvers, drift, PVC eliminators, PVC water distribution system and nozzles, GI nut bolt (included float valve)and all fitting complete all as specified and as directed. Note : Make shall be provided as per existing make and as approved by GE.

S & F in repair Square type shape and FRP induced draft type counter flow, casting by fiber glass reinforced,casing & basin(FRP) MSHDG type mechanical equipment supports, electroplated hardware, drain connections, suitable GI inspection ladder, steel supporting structure etc, suitable for 60 TR cooling tower, complete as per manufacturer's design/specifications with all fittings complete all as specifiedand as directed. Note : Make shall be provided as per existing make and as approved by GE.

M & L for cleaning and removal of the dust from Outdoor unit/Air handling unit/ Cooling coil of central/Package Type AC plant of 5.0 to 50.0 TR by washing with water or by suitable method including cleaning of air filter, supply and replacement of damaged wires with copper wire PVC insulated of existing size, tightening of loose wire, nuts, bolts, servicing of condenser motor by oiling, greasing, setting of grills alignment complete including refixing in original position including provision of thermocol for air tightness, testing and commissioning to the entire satisfaction complete all as specified and directed by Engr-In-Charge.

S & F in repair water pressure gauge dia 150mm, analog type, case and Bezel SS 304, Bourden SS 136, Socket SS 316 window toughned glass, mounting bottom entry direct on sealed unit, accuracy +1.5% FSD range 0-500kg/cm2 complete all as specified and directed by Engr-In-Charge.

S & F in repair Digital Ammeter, flush mounting type, 96 x 96mm, suitable for measurement of current from 0 to 52 Amp complete all as specified and as directed by Engr-In-Charge.

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