REPAIR MAINT OF CENTRAL AC PLANT AT AF STN UTARLAI

Amount

Supply and fix in replacement of Micro processor based PCB card and display unit for 37.5 TR capacity water cooled Screw chiller AC plant control as per OEM including pre-programmed software to control all parameter and chiller unit etc complete all as specified and directed by Engineer-in-charge. Make: - Blue star or equivalent.

Supply and fix in replacement of Micro processor based PCB card and display unit for 56.5 TR capacity water cooled Screw chiller AC plant control as per OEM including pre-programmed software to control all parameter and chiller unit etc complete all as specified and directed by Engineer-in-charge. Make: -Viltas or equivalent.

Supply and fix in replacement of Drier Filter suitable for ductable type AC Plant size 5/8" complete all as specified and directed by Engineer-in charge. Make: Dasfoss / Indofoss.

M&L in replacement of Humidity control system of any capacity for installed at AHUs including control wiring and replacement of un-serviceable heater and thermostat connected material complete all as specified and directed by Engineer-in-charge.

S&F in Replacement of AHU filter EV-4 model complete all as specified and directed by Engineer-in-charge.

Dismantling of unserviceable centrifugal pump set couple type three phase 415 volts, up to 7.5 HP at suitable for chiller line/ condensing line Compressor etc of any model/Make, strip opening and taking out or rotor carefully, cleaning of rotor and stator, taking out burnt stator winding without damage to stator body, rewinding the eclectic motor by super enameled copper conductor (Wire) including providing insulating Mika paper in stator slots, PVC sleeves, varnish the winding complete, assembling the motor including replacement of studs with nuts, testing of motor to its full load capacity at desired RPM/torque after coupling with pump set etc including transportation to civil workshop and alignment in same vice -versa completeafter replacing accessories as under: -: - (a) Gland bush , studs, nuts & washers (b) Ball bearing of pump set (c) Re-melting grinding and polishing of pump shaft as per existing size and shape complete. (d) Gland packing, greasing in pump bearings and making its proper alignment etc

Dismantling of unserviceable centrifugal pump set couple type three phase 415 volts, 3 to 5 HP at suitable for chiller line/ condensing line Compressor etc of any model/Make, strip opening and taking out or rotor carefully, cleaning of rotor and stator, taking out burnt stator winding without damage to stator body, rewinding the eclectic motor by super enameled copper conductor (Wire) including providing insulating Mika paper in stator slots, PVC sleeves, varnish the winding complete, assembling the motor including replacement of studs with nuts, testing of motor to its full load capacity at desired RPM/torque after coupling with pump set etc including transportation to civil workshop and alignment in same vice -versa completeafter replacing accessories as under: -: - (a) Gland bush , studs, nuts & washers (b) Ball bearing of pump set (c) Re-melting grinding and polishing of pump shaft as per existing size and shape complete. (d) Gland packing, greasing in pump bearings and making its proper alignment etc

S&F in replacement of LP cut off control cut out 12 volt suitable for 10 TR, 37.5 TR & 56.5TR AC of capacity complete all as specified and directed by Engineer-in-charge. Make: - Danfoss / Indo Foss

S&F in replacement of HP cut off control cut out 12 Volt suitable for 10 TR, 37.5 TR & 56.5TR AC of capacity complete all as specified and directed by Engineer-in-charge. Make: - Danfoss / Indo Foss or equivalent make as approved by GE.

S&F in replacement of LP sensor 12 volt suitable for Scroll type AC of capacity10 TR, 37.5 TR & 56.5TR complete all as specified and directed by Engineer-in-charge. Make: - Danfoss / Indo Foss or equivalent make as approved by GE.

S&F in replacement of HP Sensor 12 Volt suitable for 10 TR, 37.5 TR & 56.5TR AC of capacity complete all as specified and directed by Engineer-in-charge. Make: - Danfoss/Indo Foss or equivalent make as approved by GE.

S&F in replacement of 3 Pole contactor 50/60 A Single Phase coil voltage 220 V 50 Hz with NO-NC complete all as specified and directed by Engineer-in-charge.

Repair and maintenance of thermocole insulation with thermo coal 75 mm thick TF Quality covered with chicken wire mesh , sand cement plaster10 mm CM 1:6 on the top Edge at Supply and return (External Duct) complete all as specified and directed by Engineer-in-charge. For WSA Plant.

S&F in replacement of Expansion valve suitable for 37.5 & 56.5 TR AC plant complete all as specified and directed by Engineer-in-charge. Make: - Danfoss or equivalent make as approved by GE.

S&F in replacement of Air release/Air furge valve for chiller plant complete all as specified and directed by Engineer-in-charge.

S&F in replacement of cranguage heater for water cooled screw chiller AC plant to control all parameter of Compressor and chiller unit etc complete all as specified and directed by Engineer-in-charge.

S & F in replacement of Single phase preventer Make Minilec /GIC suitable for 37.5 & 56. 5 TR AC plant complete all as specified and directed by Engineer- in - Charge.

S&F in replacement of motor fan AHU belt of suitable size as per Existing belt complete all as specified and directed by Engineer-in-charge.

S&F in replacement of inlet/outlet sensors suitable for 10 TR, 37.5 TR & 56.5TR of capacity AC plant complete all as specified and directed by Engineer-in-charge.

M & L cleaning in strainer and filter at main suction pipe line complete all as specified and directed by Engineer-in-charge.

S&F in replacement of service(leakage) valve of size 5/8 complete all as specified and directed by Engineer-in-charge.

S&F in replacement of AHU Motor Pulley for existing make and size complete all as specified and directed by Engineer-in-charge.

M&L for replacement of damaged insulation of chilled water pipeline and valves for chilled water piping of 100 mm dia pipe complete all as specified & as directed.

M&L for replacement of damaged insulation of chilled water pipeline and valves for chilled water piping of 75 mm dia pipe complete all as specified & as directed.

S & F in replacement of Thermostat suitable for control all parameter of chiller plant0-50Degree complete all as specified & as directed.

Supply, installation, testing and commissioning of Duct thermal insulation with 50mm FGP with factory made Aluminum foil complete all as specified and directed by Engr -in- charge.( For Auditourium Plant)

Supply, installation, testing and commissioning of Duct thermal insulation with 75mm thermcool, sand cement plaster(External Duct) complete all as specified and directed by Engr -in- charge.( For Auditourium Plant)

Supply, installation, testing and commissioning of under deck insulation with 50mm grade expended polystyrene 18Kg density complete all as specified and directed by Engr -in- charge.( For Auditourium Plant)

S & F in replacement of 4 core 4 Sqmm copper cable for chilled water and condenser water pump and cooling tower.

S & F in replacement of compressor for chiller type AC plant electrically / mechanically from the system, removal, lowering to the ground unserviceable reciprocating type compressor Make: Danfoss/ Kirloskar / Tecumseh / Hitachi/ Carrier 13 TR Capacity, operated onR 407c/ R410a/413 gas and 3 phase 415 volts electric supply for repair/replacement.

S & F in replacement of compressor for chiller type AC plant electrically / mechanically from the system, removal, lowering to the ground unserviceable reciprocating type compressor Make: Danfoss/ Kirloskar / Tecumseh / Hitachi/ Carrier 19 TR Capacity, operated onR 407c/ R410a /413 gas and 3 phase 415 volts electric supply for repair/replacement.

M&L for evacuation of gas from the system, de-scaling the condenser ,supply & circulating the descaling solution (hydrochloric acid) with pump, brushing the tubes and wherever required drilling the stubborn scaling without damaging the tubes, replacement of gaskets and unserviceable nuts & bolts assembling back complete testing complete for AC plant of capacity 2x10 TR all as specified and as directed(Logistic & BTF )

M&L for evacuation of gas from the system, de-scaling the condenser ,supply & circulating the descaling solution (hydrochloric acid) with pump, brushing the tubes and wherever required drilling the stubborn scaling without damaging the tubes, replacement of gaskets and unserviceable nuts & bolts assembling back complete testing complete for AC plant of capacity 3x37.5 TR all as specified and as directed(Auditorium)

M&L for evacuation of gas from the system, de-scaling the condenser ,supply & circulating the descaling solution (hydrochloric acid) with pump, brushing the tubes and wherever required drilling the stubborn scaling without damaging the tubes, replacement of gaskets and unserviceable nuts & bolts assembling back complete testing complete for AC plant of capacity 3x 56.5 TR-WSA Shed 3 specified and as directed

Opening the upper sheet and side sheet of AHU’s of the following plants for access to cooling coil, M&L for washing/cleaning of cooling coil externally with mild acid (or caustic soda hot water solution) followed by water jet including cleaning/washing of air filters and re-fixing AHU of AC plant of capacity for AC plant 10 TR capacity ( BTF,Logistic)

Opening the upper sheet and side sheet of AHU’s of the following plants for access to cooling coil, M&L for washing/cleaning of cooling coil externally with mild acid (or caustic soda hot water solution) followed by water jet including cleaning/washing of air filters and re-fixing AHU of AC plant of capacity for AC plant 37.5 TR capacity (Auditorium)

Opening the upper sheet and side sheet of AHU’s of the following plants for access to cooling coil, M&L for washing/cleaning of cooling coil externally with mild acid (or caustic soda hot water solution) followed by water jet including cleaning/washing of air filters and re-fixing AHU of AC plant of capacity for AC plant 56.5 TR capacity WSA)

M&L for checking the leakage in both low and high side of the system by feeding dry nitrogen to maintain adequate pressure in the system, restoring the leaks including S&F replacement of Teflon sealing of all refrigerant line valves like liquid lines valves/ suction/ discharge valves of compressors, gland packages of all angle valves flaring of all connections framing welding etc complete for AC plant Auditourium,WSA,BTF and Logistics

Supply & filling in replacement of compressor oil standard quality all as specified & directed.

Opening the upper sheet / side sheet of Cooling tower Cleaning, servicing of Chiller type AC Plant of any capacity / model / make for access to reserve water tank, cooling fan & cooling fins etc, M&L for washing/cleaning of cooling tower internally/ externally including cooling fins etc with mild acid (or caustic soda hot water solution) followed by water jet including cleaning/washing all as specified and as directed

Dismantling of unserviceable monoblock pumpset 3 phase 415 volts, upto 5 HP at suitable for monobloc pump/AHU/Compressor etc of any model/Make, strip opening and taking out or rotor carefully, cleaning of rotor and stator, taking out burnt stator winding with out damage to stator body, rewinding the eclectic motor by super enameled copper conductor (Wire) including providing insulating Mika paper in stator slots, PVC sleeves, varnish the winding complete, assembling the motor including replacement of studs with nuts, testing of motor to its full load capacity at desired RPM/torque after coupling with pumpset etc including transportation to civil workshop and vice -versa complete all as specified and directed by Engineer-in-Chrage.

Dismantling of unserviceable centrifugal pump set couple type three phase 415 volts, upto 7.5 HP at suitable for monoblock pump/AHU/Compressor etc of any model/Make, strip opening and taking out or rotor carefully, cleaning of rotor and stator, taking out burnt stator winding with out damage to stator body, rewinding the eclectic motor by super enameled copper conductor (Wire) including providing insulating Mika paper in stator slots, PVC sleeves, varnish the winding complete, assembling the motor including replacement of studs with nuts, testing of motor to its full load capacity at desired RPM/torque after coupling with pumpset etc including transportation to civil workshop and vice -versa complete all as specified and directed by Engineer-in-Chrage.

M & L in replacement & testing of monoblock pumping set electrically operated with motor 7.5HP/5KW, 9LPS with stainless steel Impeller, mechanical seal system and stainless steel shaft suitable for operation with electric driven motor suitable for 415Volt, 50Hz, 3 Phase, AC supply including connection cable of copper conductor of suitable size including taking up old unserviceable existing pumps and depositing to MES store yard complete all as specified and as directed by Engineer-in-Charge. Make : CROMPTON GREAVES/ KIRLOSKER/Havell's. Note (i) PCC plate form shall not be measured and paid separately. (ii) The cost of MS bracket of channel angle iron including nut bolt and washers and welding as required for fixing arrangement of mono block pumping set shall be deemed to be included in the unit rate of this item. Nothing extra shall be entertained on this account. (iii) Anti vibration pad shall also be included in the unit rate of this item.

Supply, fixing & installation in replacement of new Butterfly valve conforming to/ ISI marked, flanged both edges suitable for 80 mm bore pipe, including rubber joints, nuts, bolts, gaskets & washers, testing complete including taking out old /unserviceable valve complete all as specified and directed by Engineer-in-Charge.

Supply and fixing and installation in replacement of new Butterfly valve conforming to/ ISI marked, flanged both edges suitable for 150 mm bore pipe, including rubber joints, nuts, bolts, gaskets & washers, testing complete including taking out old /unserviceable valve complete all as specified and directed by Engineer-in-Charge.

Supply & Fixing in replacement of water pressure gauge 96mm dia as per existing pressure for chiller / condenser pipeline testing complete including taking out old /unserviceable gauged complete all as specified and directed by Engineer-in-Charge.

Supply & Fixing in replacement of Suction / Discharge gauge 65mm dia as per existing pressure for chiller / compressor Refrigerant pipeline testing complete including taking out old /unserviceable gauged complete all as specified and directed by Engineer-in-Charge.

Supply fixing in replacement of Indicator lamp color RYB suitable for control panels including necessary wiring

Supply & fix in replacement of Micro prossored relay 5 amp to 60 amp including timer as per existing. Make : (Make:- Havells and equivalent)

Supply and fixing in replacement of burnt power contactor, 3 pole, 50 Hz suitable for the existing motor 7.5 HP at site complete all as directed

Supply & fixing in replacement of MCCB 4 pole, 415 V, adjustable type 400 Amps with breaking capacity 50 KA including necessary modification in the panel complete all as specified and as directed. Make: C & S GE/L&T/Havells/Indoasian.

Supply & fixing in replacement of MCCB 4 pole, 415 V, adjustable type 160 Amps with breaking capacity 37 KA including necessary modification in the panel complete all as specified and as directed. Make: GE/L&T/Havells/Indoasian.

Supply & fixing in replacement of MCCB 4 pole, 415 V, adjustable type 100 Amps with breaking capacity 18 KA including necessary modification in the panel complete all as specified and as directed. Make: GE/L&T/Havells/Indoasian.

Supply & fixing in replacement of MCB TP 63 Amps typc K seriec inductive load with surge current with breaking capacity 10 KA including necessary connecting accessories to controle panel complete all as specified and as directed. Make: C &S GE/L&T/Havells/Indoasian.

S&F in replacement of Rotary type Compressor (Sealed Unit) of ductable split type air conditioner of capacity 1.5 TR, three phase, 440 volt of make Kirloskar / Tecumseh / Carrier/Hitachi including necessary modification of foundation as required to suit the compressor, vacumisation, pressure testing, leakage,taking down old unserviceable compressor rectification including gas charging R-22/134 & testing complete to the entire satisfaction.

Inspection of packaged type AC plant of any capacity of any type by opening the condenser unit fixed on roof top/ground floor and cooling unit fixed inside the building, and servicing, cleaning/removing the dust and filter, blower, fan motor, compressor, wasing/ cleaning the outer surface and testing including making good surface/ ceiling if necessary checking of refrigerant standing pressure complete all as directed by Engineer-in-Charge. .Note: (i) New spare parts/items required in replacement in replacement of old defective spare parts/items shall be measured and paid separately under respective items.(ii) Refrigerant required for topping (R22 / R-134/ R410(a)/407 shall be measured and paid for separately (III) Cost of transportation of air conditioner required being repair/replacement from site to workshop for repair ,and re fix at site after repair shall be deemed included in quoted rates.

Supply only Blade for condensing fan motor of capacity 5.5 /7.5TR

Supply only Blade for condensing fan motor of capacity 8.5 TR

Supply only Foam type insulating flexible pipe & air tight outer tapping fitted on ACs of any capacity for suction / discharge copper tubesincluding taking down old unserviceable all as directed.

S&F in replacement of condenser fan motor of ductable split type AC of 5.5TR capacity of makeCarrier / Hitachi / Voltas Blue star including taking down old unserviceableall as directed by Engineer-in-Charge.

S&F in replacement of condenser fan motor of ductable split type AC of 7.5 TR capacity of makeCarrier / Hitachi / Voltas Blue starincluding taking down old unserviceable all as directed by Engineer-in-Charge.

S&F in replacement of condenser fan motor of ductable split type AC of 8.5 TR capacity of makeCarrier / Hitachi / Voltas Blue starincluding taking down old unserviceable all as directed by Engineer-in-Charge.

S&F in replacement of blower fan motor of ductable split type AC of 5.5TR capacity of make Carrier / Hitachi / Voltas Blue star, including taking down old unserviceableall as directed by Engineer-in-Charge.

S&F in replacement of blower fan motor of ductable split type AC of 7.5TR capacity of make Carrier / Hitachi / Voltas Blue star,including taking down old unserviceable all as directed by Engineer-in-Charge.

S&F in replacement of blower fan motor of ductable split type AC of 8.5TR capacity of make Carrier / Hitachi / Voltas Blue star,including taking down old unserviceable all as directed by Engineer-in-Charge.

S & F in replacement of starting capacitor, for ductable split type AC of capacity 80-100 Mfd Complete including taking down old unserviceableall as directed. Make : EPCOS /ASIAN /Sarada

S&F in replacement of of old unsv/ damage cooling coil with new cooling coil for air conditioner of cap 7.5/8.5 ton capacity, complete all as specified and directed by engineer-in-charge make Hitach/ Carrier / Voltas Blue star and existing sample or approved make including taking down old unserviceable all as directed.

S&F in replacement of old unsv/damage cooling coil with new cooling coil for air conditioner of cap 5.5 ton capacity, complete all as specified and directed by engineer-in-charge make Hitachi and Existing sample or approved by engr-in-charge.

S&F in replacement of Copeland scroll type Compressor (Sealed Unit) of ductable split type air conditioner of capacity 5.5 TR, three phase, 440 volt of make Kirloskar / Tecumseh /Hitachi/ Carrier including necessary modification of foundation as required to suit the compressor, vacumisation, pressure testing, leakage,taking down old unserviceable compressoror rectification including gas charging R-22 testing complete to the entire satisfaction of Engr-in-charge.

S&F in replacement of Rotary type Compressor (Sealed Unit) of ductable split type air conditioner of capacity 2.5 TR, three phase, 440 volt of make Kirloskar / Tecumseh / Hitachi/ Carrier including necessary modification of foundation as required to suit the compressor, vacumisation, taking down old unserviceable compressor, pressure testing, leakage rectification including gas charging R-22/134 & testing complete to the entire satisfaction.

S&F in replacement of Rotary type Compressor (Sealed Unit) of ductable split type air conditioner of capacity 2.0 TR, three phase, 440 volt of make Kirloskar / Tecumseh / Carrier/Hitachi including necessary modification of foundation as required to suit the compressor, vacumisation, pressure testing, leakage,taking down old unserviceable compressor rectification including gas charging R-22/134 & testing complete to the entire satisfaction.

M & L for Refrigerant gas R 22/ in company sealed cylinder of capacity all as directed by Engr-in-charge

M & L for Refrigerant gasR-410(a)/407 (a) in company sealed cylinder of capacity all as directed by Engr-in-charge

S&F in replacement of 3 phase contactor 415 Volt 50 HZ 5.5 KW coil Voltage 220 Volt make Siemens / L&T / C&S/ABB/Standard for ductable split type AC 5.5 Ton TR after disconnecting & dismantling existing unserviceable contactor all as directed

All as per item above but ductable split type AC of 7.5/8.5 TR capacity

S & F in replacement of PCB Sensor unit with wire remote control of ductable split AC indoor unit of Capacity 5.5 TR suitable for ,Hitachi removing old PCB and refix with new PCB of same make, model & capacity and model in the same position complete all as directed by Engr in Charge

Description all as per item above butbut ductable split type AC of 7.5/8.5 TR capacity

S & F in replacement of PCB unit with wire of ductable split AC out door unit of Capacity 5.5TR suitable for ,Hitachi removing old PCB and refix with new PCB of same make & capacity and model in the same position complete all as directed by Engr in Charge.

S & F in replacement of PCB unit with wire of ductable split AC out door unit of Capacity 7.5/8.5 TR suitable for ,Hitachi removing old PCB and refix with new PCB of same make & capacity and model in the same position complete all as directed by Engr in Charge.

Material and labour for flushing out system, checking and rectification of leakages if any and make it serviceable including flushing with nitrogen gas to cold charging line condenser coil and cleaning the blower unit ,filter for package type AC complete all as specified & as directed by Engineer-in-Charge.

M & L for removing the burned out copper coil from wall mounted Stabilizer of capacity 8/10 KVA and rewinding of coil assy with superenamelled copper wire as per existing gauge and varnishing complete with E class varnish, including replacement of MCB, Fuse assy, terminal panels, indicators, time delay relay and 3 core PVC lead and re-assembling and fixing in position complete all as directed by Engr in Charge.

S&F in replacement of out door unit body suitable space for fixing of condenser coil 5.5 TR(Space for compressor 1.5/2. TR 02 Nos) capacity painting with two coats of synthetic enamel spray paint over one coat of red oxide on external surface & two coats of anti corrosive paint inside the Body etc complete all as specified and directed by engineer-in-Charge

S&F in replacement of out door unit body suitable space for fixing of condenser coil capacity 7.5 TR(Space for compressor 2.5TR 03 Nos) painting with two coats of anti corrosive paint inside the Body etc complete all as specified and directed by engineer-in-Charge

S&F in replacement of condensor fan motor mounting assembly suitable for AC condensing fan motor of 5.5 TR capacity with fan motor all as directed.

S&F in replacement of condensor fan motor mounting assembly suitable for AC condensing fan motor of 7.5/8.5 TR capacity with fan motor all as directed.

S&F in replacement of old unsv/damage condensing coil with new condensing coil for air conditioner of cap 5.5 ton capacity, complete all as specified and directed by engineer-in-charge make as per sample or approved by engr-in-charge.

S&F in replacement of old unsv/damage condensing coil with new condensing coil for air conditioner of cap 7.5/8.5 ton capacity, complete all as specified and directed by engineer-in-charge make as per sample or approved by engr-in-charge.

S & F in replacement of safety valve of 5.5, 7.5 & 8.5 TR Split type ductable AC compressor line as per existing makes and sizes complete all as specified and directed by Engr -in- charge

Supply & fix in replacement ofPVC cable flexible round 3 Core Copper conductor 4 sqmm . Make :-L&T,Finolex ,Havells, HPL

Supply & fix PVC cable flexible round 3 Core Copper conductor 6 sqmm . Make :-L&T,Finolex ,Havells, HPL

Supply & fix in replacement ofPVC cable flexible round 3 Core Copper conductor 10 sqmm . Make :-L&T,Finolex ,Havells, HPL

S&F in replacement of refrigent pipe or tube (copper) for ductable split type AC of size 1/2" complete all as specified directed by Engr -in- charge.

M&L in replacement of Power contactor 63A, 3 pole model No 3 TS 47. Make Seimens

M&L in replacement of PCB Sensor unit control wiring of AC plant Capacity13/19 TR suitable for Voltas

M&L in replacement of Water flow switch for AC plant 13/19/375/56 TR capacity

M&L in replacement of PCB Sensor unit of AC plant Capacity13/19 TR suitable for Voltas

M&L in replacement of Cooling tower PVC fills suitable for 13/19/37.5/56 TR AC Plants

National Rewinding Works

INDO CONSTRUCTION