REPAIRS AND PERIODICAL MAINTENANCE OF CERTAIN CENTRAL TYPE AC PLANTS AT AFA HYDERABAD

M&L for de-scaling the Shell Tube Condenser, Evaporator Cooler and Chiller water line complete up to AHU by circulating diluted hydrochloric acid (HCL) at the appropriate ratio depending upon the scale deposits till removal of all scales inside the copper tubes & shell of the condenser by forced feed method, removal of end covers, brushing with the nylon brush, removal of all scales and degreasing with caustic soda, flushing out thoroughly, refixing the end covers with new gasket packing and nuts and bolts, connecting the inlet/outlet water connections, checking of water leakage, testing for all the following capacities of Central type AC plants complete all as specified and as directed. Note :- (i) All equipments / T&P / Transportation / Hiring Charges etc. for Pump Set, Pipes, Chemical etc. shall be arranged by the contractor & the cost of the same is deemed to be included in the unit quoted rates. (ii) Any item / job missed out in the item description / specification but technically required for successful completion of the work / job is deemed to be included in the unit quoted rates. (iii) The contractor / firm is required to visit the site prior to quoting of the subject items / work so as to ascertain the actual ground requirements. Any further query at a later date shall not be entertained & responsibility of the same shall rest on the contractor / firm. (iv) Quoted rate is also deemed to be inclusive of any minor spares as decided by the Engr-In-Charge.

Water Cooled, Chilled Water type 3 x 37 TR Capacity at Simulator Complex-South & North PC-7 MK-II complete all as specified and as directed.

Water Cooled, Chilled Water type 3 x 20 TR Capacity at Kiran Simulator complete all as specified and as directed.

Air Cooled, Chilled Water type 3 x 56 TR Capacity at Moolgavkar Hall complete all as specified and as directed.

Air Cooled, Chilled Water type 3 x 22.7 TR Capacity at Simulator Complex-1 PC-7 MK-II and C&B Hall complete all as specified and as directed.

Air Cooled, Chilled Water type 3 x 24 TR Capacity at SDS Simulator (2 AMTC) complete all as specified and as directed.

Air Cooled, Chilled Water type 2 x 22 TR Capacity at 14 AFH,WT and CRRW complete all as specified and as directed.

M&L for servicing/overhauling of Central type AC Plant comprising of overhauling and servicing of the whole plant i.e Chiller Units, Evaporator Coolers, blowing out the dust, rectifying minor problems, checking of interlock of safety/control devices (LP/HP cut outs & sensors), checking all electrical & electronics items, connections of PCB/Displays of mother boards, Relays, SPP, PV, Timers, Contactors, MCCB/MCBs etc in indl Unit & panels, checking of level of refrigerant, water pipe line leakages, general cleaning of whole plant, servicing of Chiller & Condencer pumps, Humidifier Pumps any capacity and replacement of gland packing in pumps, plant as per existing specifications of the following capacities of Central type AC plants complete all as specified and as directed. Note :- (i) All equipments/T&P/Transportation/Hiring Charges etc. for Pump Set, Pipes, Chemical etc. shall be arranged by the contractor & the cost of the same is deemed to be included in the unit quoted rates. (ii) Any item/job missed out in the item description/specification but technically required for successful completion of the work/job is deemed to be included in the unit quoted rates. (iii) The servicing of the Central type AC Plants shall be due only after Six months of 1st/Last Service done in the subject or previous contract. (iv) Labour for dismantling and reassembling of Chiller Units, Evoparators, blowers, Displays, PCBs, Sensors, Contactors, Relays etc or any other parts required to make the Plant fully functional is deemed to be included in the unit quoted rates. (v) Replacement of unserviceable items/parts with new ones shall be measured and paid separately under relevant items. (vi) Quoted rate is also deemed to be inclusive of any minor spares as decided by the Engr-In-Charge. (vii) The contractor/firm is required to visit the site prior to quoting of the subject items/ work so as to ascertain the actual ground requirements. Any further query at a later date shall not be entertained & responsibility of the same shall rest on the contractor/ firm.

Water Cooled, Chilled Water type 3 x 37 TR Capacity at Simulator Complex-South & North PC-7 MK-II complete all as specified and as directed.

Water Cooled, Chilled Water type 3 x 20 TR Capacity at Kiran Simulator complete all as specified and as directed.

Air Cooled, Chilled Water type 3 x 56 TR Capacity at Moolgavkar Hall complete all as specified and as directed.

Air Cooled, Chilled Water type 3 x 22.7 TR Capacity at Simulator Complex-1 PC-7 MK-II and C&B Hall complete all as specified and as directed.

Air Cooled, Chilled Water type 3 x 24 TR Capacity at SDS Simulator (2 AMTC) complete all as specified and as directed.

Air Cooled, Chilled Water type 2 x 22 TR Capacity at 14 AFH,WT and CRRW complete all as specified and as directed.

M&L for Servicing of FRP Cooling Towers of Water Cooled Central AC Plants of Simulator Complex-South & North PC-7 MK-II and Kiran Simulator by disconnecting all connections, thorough cleaning of FRP Casing Header, replacement of rusted nuts, bolts, washers and greasing/oiling of fan motor and fan bushes/bearing, checking fan assembly, out-let connections, arresting leakage of all joints by applying FRP compound and replacement of existing perished filter screen of PVC fills complete all as specified and as directed. Note :- (i) All equipments/T&P/Transportation/Hiring Charges etc. for Pump Set, Pipes, Chemical, Scrappers, FRP Compound, Float valves, G.I/UPVC fittings etc. shall be arranged by the contractor & the cost of the same is deemed to be included in the unit quoted rates. (ii) Any item/job missed out in the item description/specification but technically required for successful completion of the work/job is deemed to be included in the unit quoted rates. (iii) The contractor/firm is required to visit the site prior to quoting of the subject items/ work so as to ascertain the actual ground requirements. Any further query at a later date shall not be entertained & responsibility of the same shall rest on the contractor/ firm.

M&L for servicing the Air Handling Units by dismantling sheet metal parts, blowing out the dust, chemical cleaning by spraying organic based scale removing agent at appropriate ratio till removal of complete dust & scale deposits in the fins area of cooling coil, complete flushing for proper air flow across the coil, checking of the electrical connections, cleaning of air filters, greasing of blower motors, repair of blower shaft, replacement of un serviceable bearings, tightening of V-Belts, clearing of water drain lines, renewal/replacement of rusted sheet metal screws and testing the unit complete all as specified and as directed for the following capacity of AHUs : - Note :- (i) All equipments/T&P/Transportation/Hiring Charges etc. for Pump Set, Pipes, Chemical etc. shall be arranged by the contractor & the cost of the same is deemed to be included in the unit quoted rates. (ii) Any item/job missed out in the item description/specification but technically required for successful completion of the work/job is deemed to be included in the unit quoted rates. (iii) The servicing of the Central type AHU shall be due only after Three months of 1st/Last Service done in the subject or previous contract. (iv) Labour for dismantling and reassembling of Motors, Fans, Filters etc. or any other parts required to make the Plant/AHU fully functional is deemed to be included in the unit quoted rates. (v) Replacement of unserviceable items/parts with new ones shall be measured and paid separately under relevant items. (vi) Quoted rate is also deemed to be inclusive of any minor spares as decided by the Engr-In-Charge. (vii) The contractor/firm is required to visit the site prior to quoting of the subject items/ work so as to ascertain the actual ground requirements. Any further query at a later date shall not be entertained & responsibility of the same shall rest on the contractor/ firm.

AHU Capacity 1x32 TR,1x19 TR,1x 7 TR,1x4 TR & 2x 6 TR (02 Nos) Capacity at BTA Simulator II & III complete all as specified and as directed.

AHU Capacity 22400 CFM (02 Nos) at Moolgavkar Hall complete all as specified and as directed.

AHU Capacity 22 TR (02 Nos) at PC 7 Simulator I complete all as specified and as directed.

AHU Capacity 15000 CFM at SD Simulator complete all as specified and as directed.

AHU Capacity 11806 CFM at WT, CRRW & 14 AFH complete all as specified and as directed.

AHU of 60TR Capacity Water Cooled Central AC Plant at Kiran Simulator complete all as specified and as directed.

M&L for Leak Testing of the Total Refrigerant System of AC plants by pumping down the refrigerant to cylinder (evacuation of gas from the sysytem into the empty cylinders), flushing out the entire system, arresting of all leakages by replacing the damaged flare nuts, teflon washers, brazing, gaskets, "o" rings etc. and leak test by supply and charging with Nitrogen gas (N2) under constant pressure of 250-350 PSI, watching the pressure for 24 Hrs for confirmation, flushing out the system vacuumising and recharging/charging the required qty of refrigerant and lubricant testing and commissioning the system complete all as specified and as directed for the following capacity of compressor of AC plants :- Note :- (i) All equipments/T&P/Transportation/Hiring Charges etc. for Empty Cylinders, N2 Gas etc. shall be arranged by the contractor & the cost of the same is deemed to be included in the unit quoted rates. (ii) Any item/job missed out in the item description/specification but technically required for successful completion of the work/job is deemed to be included in the unit quoted rates. (iii) Labour for dismantling and reassembling of Motors, Pumps etc. or any other parts required to make the Plant/system fully functional is deemed to be included in the unit quoted rates. (iv) Replacement of unserviceable items/parts with new ones shall be measured and paid separately under relevant items. (v) Quoted rate is also deemed to be inclusive of any minor spares as decided by the Engr-In-Charge. (vi) The contractor/firm is required to visit the site prior to quoting of the subject items/ work so as to ascertain the actual ground requirements. Any further query at a later date shall not be entertained & responsibility of the same shall rest on the contractor/ firm.

11 to 13 TR Compressor rating/capacity complete all as specified and as directed.

20 TR Compressor rating/capacity complete all as specified and as directed.

M&L for preparation of surfaces by scrapping and removing rusted portion with wire brush and applying one coat of zinc chrome metal primer and two coats of synthetic enamel paint of approved grade/colour by spray painting method for complete AC plant i.e. Compressor Units, Chiller Units, Condenser Units, inlet/outlet pipe lines with connected valves, Chiller & Condenser pump set, channels, water pipe lines of inlet and outlets from Cooling Tower to Condenser Pumps and Chiller Pumps, Cooling towers, foundation base frame structure, Windows, Shutters etc. and one coat of white wash/colour wash of entire internal walls, ceiling and plinth of plant as per site requirement complete all as specified and as directed for the following AC plants :-

Water Cooled, Chilled Water type 3 x 37 TR Capacity at Simulator Complex-South & North PC-7 MK-II complete all as specified and as directed.

Water Cooled, Chilled Water type 3 x 20 TR Capacity at Kiran Simulator complete all as specified and as directed.

M&L for preparation of surfaces by scrapping and removing rusted portion with wire brush and applying one coat of zink chrome metal primer and two coats of synthetic enamel paint of approved grade/colour by spray painting method for complete Outdoor Unit of Plant and Compressor Units, Chiller Units, Condenser Units, inlet/outlet pipe lines with connected valves, Chiller Pumps, Channels and Windows, Shutters etc and one coat of white wash/colour wash of entire internal walls, ceiling and plinth of AHU Room etc. all as per site requirement complete all as specified and as directed for the following AC plants :-

Air Cooled, Chilled Water type 3 x 56 TR Capacity at Moolgavkar Hall complete all as specified and as directed.

Air Cooled, Chilled Water type 3 x 22.7 TR Capacity at Simulator Complex-1 PC-7 MK-II and C&B Hall complete all as specified and as directed.

Air Cooled, Chilled Water type 3 x 24 TR Capacity at SDS Simulator (2 AMTC) complete all as specified and as directed.

Air Cooled, Chilled Water type 2 x 22 TR Capacity at 14 AFH,WT and CRRW complete all as specified and as directed.

M&L for repairs and overhauling of Monoblock Pump Sets (Chiller/Condenser Pump Sets) by disconnecting and taking out from position, dismantling and re-building the shaft at worn out places, machining to it’s original size/shape, replacement of worn out bush/ball bearings, gland plates, re-conditioning the impeller and gland bushings, replacement of packing, stud bolts etc., applying insulating varnish on the stator and rotor re-winding of burnt 415 V, 3 phase motors of following capacities with new super enameled copper wire of same gauge/type and same number of turns as existing, drying up and re-assembling the pump set, installing at it’s original location, connecting up all connections, commissioning & testing complete all as specified and as directed for the following capacities :- Note :- (i) Cost of all equipments/T&P/Transportation/Hiring Charges etc. incl dismantling / decoupling / transporation and refixing/installation etc. of the repaired items/eqpts required for successful completion of the work/job is deemed to be included in the unit quoted rates. (ii) Re-winding of Motors work/job is to be carried out in a suitable workshop. (iii) Repair/rewinding & re-installation process shall be completed in totality to the entire satisfaction of the Engr-In-Charge within 07 days of handover of the Motors. (iv) Cost of testing/inspection at workshop is deemed to be included in the unit quoted rates & including repair/replacement warranty of 01 Years from the date of re-installation of the Motors. (v) Repair/replacement job/wk pertaining to gland packing, gland plates, bearing, impellers, studs, fan blade, connecting plates, housing repair etc. is deemed to be included in the unit quoted rates. (vi) Any item/job missed out in the item description/specification but technically required for successful completion of the work/job is deemed to be included in the unit quoted rates. (vii) The contractor/firm is required to visit the site prior to quoting of the subject items/ work so as to ascertain the actual ground requirements. Any further query at a later date shall not be entertained & responsibility of the same shall rest on the contractor/ firm.

Upto 3.0 HP rating/capacity complete all as specified and as directed.

5.0 to 7.5 HP rating/capacity complete all as specified and as directed.

Supply, install, commissioning & testing of Hermetically Sealed Compressor including taking down unserviceable one after disconnecting the suction/delivery lines of following capacities as per existing make, model & specification, including pressure testing, vacuumising and charging of refrigerant complete all as specified and as directed. Make : Copeland / Danfoss / kirloskar / Blue star / Voltas (As per site requirement) Note :- (i) Design/Drawing/Technical catalogue/specifications etc. from the OEM/Auth Dealer/Supplier to be submitted to the Engr-In-Charge/GE for Make/Sample approval of items before placing order to the Manufacturer/Supplier. (ii) Cost of all equipments/T&P/Transportation/Hiring Charges incl brazing work etc. required for successful completion of the work/job is deemed to be included in the unit quoted rates. (iii) Unit quoted rate is deemed to be be inclusive of replacement guarantee of 02 Years from the date of installation of the Compressor in the event of non/improper functioning. (iv) Original Purchase Vouchers & Test Certificates for the Compressor is to be submitted to the Engr-In-Charge for checking/records purpose. (v) Any item/job missed out in the item description/specification but technically required for successful completion of the work/job is deemed to be included in the unit quoted rates. (vi) The contractor/firm is required to visit the site prior to quoting of the subject items/ work so as to ascertain the actual ground requirements. Any further query at a later date shall not be entertained & responsibility of the same shall rest on the contractor/ firm. (vii) The complete job/work of Compressor installation, commissioning & testing shall be carried out from OEM/Auth Dealer/Supplier Rep & complete process must be completed within 07 days of removal/dismantling of the old unsv unit. Penalty @ Rs. 500/- per day shall be charged for non-commissioning of the Compressor Unit beyond alloted 7 days as cited above.

20 TR Capacity

13 TR Capacity

12 TR Capacity

11 TR Capacity

M&L for taking down unserviceable liquid line filter drier and S&F new filter drier all as per existing make & specification and of suitable size perfectly matching with existing refrigerant line & suitable for 11 TR to 13 TR capacity Compressor of AC Plants complete all as specified and as directed.

M&L for taking down unserviceable liquid line filter drier and S&F new filter drier all as per existing make & specification and of suitable size perfectly matching with existing refrigerant line & suitable for 20 TR capacity Compressor of AC Plants complete all as specified and as directed.

M&L for High/Low Pressure cut-outs including taking out the defective/unsv ones of appropriate range/model perfectly suitable of following sizes/types connecting the pressure lines/control wiring incl testing complete all as specified and as directed :-

Pressure switch BLPS-YKH-04 (Open : 360+/-14PSI and Close : 300/-21PSI) complete all as specified and as directed.

HP/LP pressure cut-out MP-15 (Low starting (-) 0.4 to 7 Bar, High stopping 8 to 30 Bar) complete all as specified and as directed.

Water pressure cut-out IPS-70 (Range 0-5 and adjustable differential : 0.4 to 4 Bar) complete all as specified and as directed.

Low pressure cut-out MP-1 (Low starting 30CM Hg to 7 atmg , differential : 0.6 to 6 atm) complete all as specified and as directed.

High pressure cut-out MP-5 (Range : 6 to 30 Bar) complete all as specified and as directed.

Oil pressure cut-out MP-55 (Range : 0.30 to 4.50 Bar) complete all as specified and as directed. Make: Danfoss

M&L for taking down old unsv Hand shut off valve any type/size & S&F hand shut off valve (brass) from the refrigerant line after cutting the liquid line and of following sizes/type with necessary welding/brazing etc incl testing complete all as specified and as directed.

Hand shutt off valve 15/8" dia complete all as specified and as directed. Make : Danfoss, Model:Danfoss GBC 42S

Hand shutt off valve 5/8" dia complete all as specified and as directed. Make : Danfoss, Model:Danfoss GBC 16S

Hand shutt off valve 1/2" dia complete all as specified and as directed. Make : Danfoss, Model:Danfoss GBC 12S

Hand shutt off valve 3/8" dia complete all as specified and as directed. Make : Danfoss, Model:Danfoss GBC 10S

S&F Digital Hygrometer for temperature and humidity sensors metering sytem wall mounted suitable for Central AC plant AHU Room including fixing on wall with necessary electrical/mechanical connections & testing including taking down the old unserviceable one complete all as specified and as directed. Model : OSR MEDPLUS Note for Item Nos 10 to 14 above :- 1) Design/Drawing/Technical catalogue/specifications/Sample etc. from the OEM / Auth Dealer / Supplier to be submitted to the Engr-In-Charge / GE for Make / Sample approval of items before placing order to the Manufacturer / Supplier. (ii) Cost of all equipments / T&P / Transportation / Hiring Charges incl brazing work etc required for successful completion of the work/job is deemed to be included in the unit quoted rates. (iii) Unit quoted rate is deemed to be be inclusive of replacement guarantee of 02 Years from the date of installation of the item/eqpt in the event of non/improper functioning (iv) Original Purchase Vouchers & Test Certificates is to be submitted to the Engr-In-Charge for checking/records purpose. (v) Any item/job missed out in the item description/specification but technically required for successful completion of the work/job is deemed to be included in the unit quoted rates. (vi) The contractor/firm is required to visit the site prior to quoting of the subject items/ work so as to ascertain the actual ground requirements. Any further query at a later date shall not be entertained & responsibility of the same shall rest on the contractor/ firm.

M&L for complete repair/servicing of Programable Microprocessor based Control Panel (Mother Boards & Controllers) with touch screen display including repair of all equipment protection devices etc. including replacement of wornout Contactors, Phase Preventers, Fuses, Internal Wirings as per existing/same model & specifications of suitable size to Chiller Unit Air Cooled Central type AC Plant of 56 TR capacity incl testing complete all as specified and as directed. Make : Voltas

M&L for complete repair/servicing of Programable Microprocessor based Control Panel (Mother Boards & Controllers) with touch screen display including repair of all equipment protection devices etc. including replacement of wornout Contactors, Phase Preventers, Fuses, Internal Wirings as per existing/same model & specifications of suitable size to Chiller Unit Water Cooled Central type AC Plant of 37 TR capacity incl testing complete all as specified and as directed. Make : Voltas

M&L for complete repair/servicing of Programable Microprocessor based Control Panel (Mother Boards & Controllers) with touch screen display including repair of all equipment protection devices etc. including replacement of wornout Contactors, Phase Preventers, Fuses, Internal Wirings as per existing/same model & specifications of suitable size to Chiller Unit Air Cooled Central type AC Plant of 24 TR capacity incl testing complete all as specified and as directed. Make : Bluestar

M&L for complete repair/servicing of Programable Microprocessor based Control Panel (Mother Boards & Controllers) with touch screen display including repair of all equipment protection devices etc. including replacement of wornout Contactors, Phase Preventers, Fuses, Internal Wirings as per existing/same model & specifications of suitable size to Chiller Unit Air Cooled Central type AC Plant of 22.7 TR capacity incl testing complete all as specified and as directed. Make : Bluestar Note for Item Nos 15 to 18 :- (i) Design/Drawing/Technical catalogue/specifications/Sample etc. from the OEM/Auth Dealer/Supplier to be submitted to the Engr-In-Charge/GE for Make/Sample approval of items before placing order to the Manufacturer/Supplier. (ii) Cost of all equipments/T&P/Transportation/Hiring Charges incl replacement of items like Touch Screen Displays, Mother Boards, Controllers, Contactors, Phase Preventors, Fuses, Internal Wirings etc. required for successful completion of the work/job is deemed to be included in the unit quoted rates. (iii) Unit quoted rate is deemed to be be inclusive of replacement guarantee of 02 Years from the date of installation of the item/eqpt in the event of non/improper functioning. (iv) Original Purchase Vouchers & Test Certificates is to be submitted to the Engr-In-Charge for checking/records purpose. (v) Any item/job missed out in the item description/specification but technically required for successful completion of the work/job is deemed to be included in the unit quoted rates. (vi) The contractor/firm is required to visit the site prior to quoting of the subject items/ work so as to ascertain the actual ground requirements. Any further query at a later date shall not be entertained & responsibility of the same shall rest on the contractor/ firm. (vii) The complete job/work shall be carried out from OEM/Auth Dealer/Supplier Rep & complete process must be completed within 07 days of removal/dismantling of the old unsv unit. Penalty @ Rs. 1000/- per day shall be charged for non-commissioning of the item/unit beyond alloted 7 days as cited above.

S&F Air Filters as per existing type/size/grade of the following sizes for the AHU incl testing complete all as specified and as directed & to the entire satisfaction of the complete all as specified and as directed.

600 x 600 x 45 mm with 10 Micron complete all as specified and as directed.

600 x 300 x 45 mm with 10 Micron complete all as specified and as directed.

Supply and filling / topping up / charging of Refrigerent gas R-407/R-410 for Central type AC Plants incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

S&F in replacement Chiller Sensors suitable for Blue Star/Voltas Make Central type AC Plant all as per existing Make/Model & as per site requirement incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

S&F in replacement Chiller Thermometer for Central Type AC Plant all as per existing Make/Model & as per site requirement incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

S&F in replacement Condenser Relief Valve of Cap 350 PSI for Central Type AC Plant all as per existing Make/Model & as per site requirement incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

S&F in replacement PCB Transformer 24 Volts for Central Type AC Plant all as per existing Make/Model & as per site requirement incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

S&F Humidistat and Digital Thermostat including control wiring all as per existing Make/Model & as per site requirement incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

S& F Finned Strip Heater Bank 20 KW capacity with control panel fixing inside the duct fixed on insulators for each AHU all as per existing Make/Model & as per site requirement incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge. Make : Danfoss or techno-commercially equivlent.

Supply, install, commissioning & testing of 3-way Motorised Valves 100mm dia with Rapid Control Actuator for chilled water all as per existing Make/Model & as per site requirement along with thermostat control incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge. Make : Danfoss or techno-commercially equivlent.

Supply, install, commissioning & testing of 3-way Motorised Valves 80mm dia with Rapid Control Actuator for chilled water all as per existing Make/Model & as per site requirement along with thermostat control incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge. Make : Danfoss or techno-commercially equivlent.

M&L for repair of Air Cooled Condenser Fan Motor all as per existing Make/Model/capacity & as per site requirement incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

S&F Pressure Gauge with Syphon & Cock and Isolation Valve etc. all as per existing Make/Model/size & as per site requirement incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

S&F Dial type Thermometers 0 to 50 Degree Centigrade with Syphon & Cock and Isolation valve etc.all as per existing Make/Model/size & as per site requirement incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

M&L for Blower Motor "V" Belt all as per existing Make/Model/size & as per site requirement perfectly matching with the existing system for AHU of Central type AC Plants incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

M&L Thermal Insulation with Aluminium faced nitrile rubber 12 mm thick for duct/AHU all as per existing Make/Model/Size/Density and Thermal Conductivity including packing material for the AC plants complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

M&L for Thermal Insulation Cover with Aluminium Cladding Sheet for 50 & 80mm dia Chiller Pipeline all as per existing grade/size/type & as per site requirement incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

M&L for Extruded Aluminium Grills/Diffusers made out of powder coated aluminium sections all as per manufacturer's instructions & as per site requirement incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

Supply, install, commissioning & testing of Butterfly Valve of following sizes including with new nuts, bolts, washers and packing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge. Make : Zoloto / Kirloskar / Leader

50 mm dia complete all as specified and as directed.

63 mm dia complete all as specified and as directed.

S&F UPVC Pipe (medium grade) size 40 mm dia, ISI marked for Pump Drain Water Outlet of AC plants, fixed on walls, ceiling, on floors etc. with proper clamping/fixing mtrls incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge. Make : Astral / Supreme / Finolex

Supply, install, commissioning & testing of Chiller Water Piping of MS "C" Class cut to required length and installed with welded joints including all necessary fittings such as elbows, tees, bends, short pieces etc. and conforming to the specifications/meeting site requirements and painting with one coat of red oxide primer and two coats of synthetic enamel paint of approved grade & colour, complete including providing necessary steel supports with & including Pipe Insulation with 30mm thick PUF with 26 gauge alluminium cladding sheet complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge of the following sizes : Make : Tata / Jindal

100 mm dia complete all as specified and as directed.

65 mm dia complete all as specified and as directed.

Supply and fixing C.I double regulating Butterfly balancing valves flanged with Nozzle PN-16 of size 100 mm dia complete with companion flanges, nuts ,bolts, washers and gaskets etc conforming to relevant IS complete all as specified and as directed. Make : Zoloto / Kirloskar / Leader

Supply and fixing C.I double regulating Butterfly balancing valves flanged with Nozzle PN-16 of size 65 mm dia complete with companion flanges, nuts ,bolts, washers and gaskets etc conforming to relevant IS complete all as specified and as directed. Make : Zoloto / Kirloskar / Leader

S&F Loft type HDPE Water Storage Tank mounted/hoisted in position of 100 Ltrs capacity suitable for existing Humidifier system of Central type AC Plants incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge. Make : Sintex or techno-commercially equivalent.

M&L HDPE Water Storage Tank double layer (cylindrical vertical with closed top) mounted/hoisted in position of 500 Ltrs capacity including making connections, float valve and PCC/Plaster work as required at site for heat protection insulation to PVC Chilled Water Tank as per existing/site requirement incl testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge. Make : Sintex or techno-commercially equivalent.

M&L for GI Perforated type Cable tray, 150 mm wide, 100mm depth including cover made out of 2mm thick GI sheet, including MS supports / threaded rods and anchor fasteners whereever required perfectly suited to existing site conditions complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge.

S&F Contactor AC 3 Ph, MNX type & of current rating 9 to 40 Amps, coil voltage 415 V AC, 50Hz incl necessary fixing & electrical connection arrangements & testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge. Make : L&T/ABB/SIEMENS/LEGRAND

S&F MCB C Series, TP 40 Amps, 415V, 10 KA incl all termnials, fittings etc incl necessary fixing & electrical connection arrangements & testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge. Make : L&T/ABB/SIEMENS/LEGRAND

S&F MCB C Series, DP 6 to 40 Amps, 240V, 10 KA incl all termnials, fittings etc. incl necessary fixing & electrical connection arrangements & testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge. Make : L&T/ABB/SIEMENS/LEGRAND

S&F MCB C Series, SP 6 to 40 Amps, 240V, 10 KA incl all termnials, fittings etc. incl necessary fixing & electrical connection arrangements & testing complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge. Make : L&T/ABB/SIEMENS/LEGRAND

Supply, install, commissioning & testing of the following items for AC Plants of different Make/Model/type/capacity complete all as specified and as directed & to the entire satisfaction of the Engr-In-Charge :

Over Load Relay of type/range ML-1 6 to 16 Amps as per existing site requirements complete all as specified and as directed. Make : L&T or techno-commercially equivalent.

Control Relay with coil voltage 24/110/415V, 50 Hz as per existing site requirements complete all as specified and as directed. Make : L&T or techno-commercially equivalent.

Single Phase Preventer same as per existing site requirements complete all as specified and as directed. Make : Minilec or techno-commercially equivalent.

LED Indicator lamps of colors Red /Yellow/Blue complete all as specified and as directed. Make : L&T or techno-commercially equivalent.

Push Button with element for Starter assy complete all as specified and as directed. Make : L&T or techno-commercially equivalent.

PVC Connectors 25 to 50 Sqmm complete all as specified and as directed.

MCCB 4P (Ics = 100% Icu) with thermal magnetic release, adjustable short circuit & adjustable overload setting,suitable for isolation, having breaking capacity 36 KA & of rating 168 to 250 A complete all as specified and as directed. Make : Cat No : DZ4F0250DXD1AOOOO of Make L&T or techno-commercially equivalent of LEGRAND/SIEMENS.

MCCB 4P (Ics = 100% Icu) with thermal magnetic release, adjustable short circuit & adjustable overload setting,suitable for isolation, having breaking capacity 25 KA & of rating 80 to 100 A complete all as specified and as directed. Make : Cat No : DZ0F0100CXC1AOOOO of Make L&T or techno-commercially equivalent of LEGRAND/SIEMENS.

MCCB 4P (Ics = 100% Icu) with thermal magnetic release, adjustable short circuit & adjustable overload setting,suitable for isolation, having breaking capacity 25 KA & of rating 50 to 63 A complete all as specified and as directed. Make : Cat No : DZ0F0063CXC1AOOOO of Make L&T or techno-commercially equivalent of LEGRAND/SIEMENS.

M&L for Repair & servicing of existing Pump Starters in the LT Control Panels of any rating/type/size and any capacity, replacing unserviceable components/spares such as Meters, Cable lugs, Push Buttons and CT coils etc including necessary wiring for DOL and Star- Delta Starters using FRLS copper conductor of size not less than 2.5 Sqmm and necessary ferrules and Casing Capping/Conduits, Cable ties etc. required to secure the wiring incl testing complete all as specified & as directed & to the entire satisfaction of the Engr-in-charge.

Supply, Laying, Jointing & Testing of LT UG Cables, XLPE insulated, PVC sheathed aluminium conductor multi stranded armoured heavy duty 1100 Volt grade laid in ducts/along poles/through pipe under road etc with aluminium lugs for the following cable sizes complete all as specified and as directed. Make : Havells / Finolex / Polycab

6 sqmm 4.0 core complete all as specified and as directed

10 sqmm 4.0 core complete all as specified and as directed

16 sqmm 4.0 core complete all as specified and as directed

25 sqmm 4.0 core complete all as specified and as directed

35 sqmm 3.5 core complete all as specified and as directed

M&L for attending any type/nature of breakdown/faults of Mechanical as well as Electrical nature of Central type AC Plants of any size/rating/capacity duly comprising checking for the unserviceability / repair/ rectification etc of PCBs, Compressors, Chillers, Condensers, Pumps, Motors, Pipelines, LT Panels incl accessories, Starters, Breakers, Contactors, Relays etc. of any type/size/wattage incl connected items/services etc. by disconnecting and taking down unserviceable items/accessories etc. & carrying out necessary repair/rectification/replacement of the unsv spares etc. including reconnection/refixing after testing complete all as specified and as directed and to the entire satisfaction of the Engr-In-Charge. Important Notes : (i) The Contractor will be alloted complaints at MES Complaint Cell on requirement basis on all working days incl Sundays & Holidays. Sufficient experienced & competant Tradesman/Helper/Labour & allied Resources etc. should be deployed by him for completion of day to day complaints within 12 Hrs & 24 Hrs for major breakdowns from the time of reporting/intimation about the complaint. During urgent/emergent cases intimation/information about the breakdown will be conveyed to the Contractor through Telephonic/Electronic modes. In the event of any delay beyond above mentioned time limit without prior intimation or genuine cause, Penalty at the rate of twice the quoted rate for each un-attended complaint shall be recovered. (ii) A complaint register with complete details of number of complaints received, number of complaints attended, number of complaints completed, nature of complaint, fitments/fittings etc. used in the rectification process with remarks column from User/MES will be maintained by the Contr & the same shall be updated on a daily basis with initials of JE E/M & periodic checking from Engr-In-Charge/GE. (iii) Quoted rate is deemed to be inclusive of the following & no extra payment shall be allowed on this account : (a) Cost of transportation of Manpower/Materials/Resources etc. to & from the complaint site. (b) Hiring Charge of items/equipments like Vehicle/Ladder/JCB/Crane/Gas Cutter/Welding Machine/DG Set etc. required for succesful completion/rectification of the complaint. (c) In the event of any damage to the property/assets of MES/Air Force/Other Depts, the making good of the damaged/disturbed surfaces etc. & matching to the existing finish has to be done as per their norms/requirement. (d) Cost of rectification of leakage of pipelines. (e) Cost of taking down damaged/old unsv/items/spares etc. (f) Cost of Tradesman/Helper/Labour element etc. (g) Cost of minor excavation required for taking out/finding the cable loops/connections etc. (h) A joint inspection shall be carried out on a weekly basis for checking of serviceability of Central type AC Plants with Contractor Rep/MES Rep & User Rep & points raised shall be noted for necessary compliance on Priority. (j) Any item/job missed out in the item description/specification but technically required for successful completion of the work/job is deemed to be included in the unit quoted rates. (iv) Major Earthwork & new items required for repair/rectification shall be measured & paid separately under relevant items.