REPAIR AND MAINTENANCE OF AC PLANT AT AF STN UTARLAI

Amount

S&F in replacement Micro processor based PCB card and display unit for 37.5 TR capacity water cooled Scroll 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.

S&F in replacement Micro processor based PCB card and display unit for 56.5 TR capacity water cooled Scroll 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.

S&F in replacement Micro processor based PCB card and display unit for 13 TR capacity water cooled Scroll 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.

S&F in replacement Micro processor based PCB card and display unit for 10 TR capacity water cooled Scroll 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.

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

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 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 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 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 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 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.

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

S & F in replacement 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 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 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 for cleaning in strainer and filter at main suction pipe line complete all as specified and directed by Engineer-in-charge.

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

S&F in replacement AHU filter EU-4 existing Make, model and size complete all as specified and directed by Engineer-in-charge.

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

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.

Serving and greasing of centrifugal pump set couple type three phase 415 volts, upto 5/7.5 HP at suitable for monoblock pump/AHU/Compressor etc of any model/Make, strip opening and taking out or rotor cerefully, cleaning of rotor and stator, without damage to stator body, changing of bearing, including assembling all dessembled components, packing, testing of motor to its full load capacity at desired RPM/torque after coupling with pumpset etc on site complete all as specifiled and directed by Engineer-in-Charge

Serving and greasing of centrifugal pump set couple type three phase 415 volts, upto 2/3 HP at suitable for monoblock pump/AHU/Compressor etc of any model/Make, strip opening and taking out or rotor cerefully, cleaning of rotor and stator, without damage to stator body, changing of bearing, including assembling all dessembled components, packing, testing of motor to its full load capacity at desired RPM/torque after coupling with pumpset etc on site complete all as specifiled and directed by Engineer-in-Charge

S&F in replacement Butterfly valve conforming to ISI marked, flanged both edges suitable for 50 mm bore pipe, including rubber joints, nuts, bolts, gaskets & washers, testing complete complete all as specified and directed by Engineer-in-Charge.

S&F in replacement Butterfly valve conforming to/ ISI marked, flanged both edges suitable for 65mm bore pipe, including rubber joints, nuts, bolts, gaskets & washers, testing complete all as specified and directed by Engineer-in-Charge.

S&F in replacement Butterfly valve conforming to/ ISI marked, flanged both edges suitable for 80mm bore pipe, including rubber joints, nuts, bolts, gaskets & washers, testing complete all as specified and directed by Engineer-in-Charge.

S&F in replacement Butterfly valve conforming to/ ISI marked, flanged both edges suitable for 125mm bore pipe, including rubber joints, nuts, bolts, gaskets & washers, testing complete all as specified and directed by Engineer-in-Charge.

S&F in replacement Water pressure gauge 96mm dia as per existing pressure for chiller / condenser pipeline testing complete complete all as specified and directed by Engineer-in-Charge.

S&F in replacement Water pressure gauge 96mm dia as per existing Make and model of chiller / condenser pipeline testing complete complete all as specified and directed by Engineer-in-Charge.

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

S&F in replacement MCCB 4 pole, 415 V, adjustable type 100 Amps with breaking capacity 25 KA including necessary modification in the panel complete all as specified and as directed. Make: GE/L&T/Havells/Indoasian.

S&F in replacement MCCB 4 pole, 415 V, adjustable type 63 Amps with breaking capacity 25 KA including necessary modification in the panel complete all as specified and as directed. Make: GE/L&T/Havells/Indoasian.

S&F in replacement Rotary type Compressor (Sealed Unit) of ductable split type air conditioner of capacity 2.5 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 tubes complete all as specified and directed by Engineer-in-Charge.

S&F in replacement Condenser fan motor of ductable split type AC of 5.5TR capacity of makeCarrier / Hitachi / Voltas Blue star complete all as specified and 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 star complete all as specified and directed by Engineer-in-Charge.ed 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 star complete all as specified and directed by Engineer-in-Charge.

S&F in replacement of blower fan motor of ductable split type AC of 5.5/8.5TR capacity of make Carrier / Hitachi / Voltas Blue star, complete all as specified and directed by Engineer-in-Charge.

Supply and recharge Refrigerant gas R 22/ in company sealed cylinder of capacity all as directed by Engr-in-charge

Supply and recharge Refrigerant gas R-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 TR after disconnecting & dismantling existing unserviceable contactor all as directed

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 7.5/8.5 TR after disconnecting & dismantling existing unserviceable contactor all as directed

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

S & F in replacement of PCB Sensor unit with wire remote control of ductable split AC indoor unit of Capacity 7.5/8.5 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

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.

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

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

S&F in replacement PVC cable flexible round 3 Core Copper conductor 6 sqmm . Make :-L&T,Finolex ,Havells, HPL

S&F in replacement PVC cable flexible round 3 Core Copper conductor 10 sqmm . Make :-L&T,Finolex ,Havells, HPL

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

S&F in replacement Solenoid Switch suitable for 10/13 TR Water type AC plant complete all as specified directed.

S&F in replacement Water flow switch for AC plant 13/19/375/56 TR capacity

S&F in replacement Cooling tower PVC fills suitable for 13/19/37.5/56 TR AC Plants

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 2.0 TR, single phase, 230 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 of Engr-in-charge.

S&F in replacement of Rotary type Compressor (Sealed Unit) of ductable split type air conditioner of capacity 1.5 TR, single phase, 230 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 completeto the entire satisfaction of Engr-in-charge.

M&L for painting to Central AC Plant 10 TR capacity including pipe lines in existing colour code with water in and out symbols. Stickers, iron parts etc; with two coats of synthetic enamel paint complete akl as specified and as diredted.( BTF and Logistic Plant)

M&L for painting to Central AC Plant 37.5 TR capacity including pipe lines in existing colour code with water in and out symbols. Stickers, iron parts etc; with two coats of synthetic enamel paint complete akl as specified and as diredted.( Auditorium Plant)

M&L for painting to Central AC Plant 56.5 TR capacity including pipe lines in existing colour code with water in and out symbols. Stickers, iron parts etc; with two coats of synthetic enamel paint complete akl as specified and as diredted.( WSA Plant)