OUTSOURCING OF SERVICES AND REPAIRS FOR CENTRAL AND PACKAGE TYPE AC PLANTS AND ALLIED REPAIR WORKS INSTALLED AT DMRL, DRDO TOWNSHIP, CNA (DP) AND ADJOINING AREA UNDER AGE E/M-1 AT KANCHANBAGH, HYDERABAD

Amount

Outsourcing of services for Operation & Maintenance of AC plant at AEC Bldg DMRL, carrying out regular,routine checks for upkeep of installation, like oil level checking, leak testing, checking of electrical control panel, greasing to the motor, replacement of gland packing to pump, O rings, gaskets, belts, nuts, bolts and washers etc.,and including, cleaning of cooling tower, AC plant room and check & fill water in tanks provided at AC plant but excluding major repair & Maintenance to AC plant 3x30 TR capacity, water cooled, scroll chiller plant with AHUs, Fan coil units, dehumidifier, pump sets with electrical panel, switch operation etc ,on all days including Sunday & holidays in three shifts, (1st shift from 0600hrs to 1400hrs, 2nd shift from 1400hrs to 2200hrs, 3rd shift from 2200hrs to 0600hrs by employing one AC operator in each shift complete all as directed by the Engr-in-charge.

All as per serial item No.1 here-in-before but for AC plant of capacity of 3x7.5 TR package type installed in CREEP Lab,DMRL (24 hours round the clock) on all days including Sunday & holidays in three shifts. (1st shift from 0600hrs to 1400hrs, 2nd shift from 1400hrs to 2200hrs, 3rd shift from 2200hrs to 0600hrs (one AC operator for each shift) Note :- Tradesmen employed in this AC plant shall also Switch ON/OFF Air Blower at PM plant Bldg as and when required and as directed by the Engr-in-charge.

All as per serial item No.1 here-in-before but AC plant of capacity 3 x 92 TR outdoor type Air cooled screw Chiller type AC plant with 2 X 92 TR running capacity and 1x 92 TR stand by unit system consisting of 3Nos AHU's installed in TIC building including Auditorium and also running capacity 2x7.5 TR package type AC plant installed in CAD CAM on all days excluding Sundays and holidays in one shift from 0830 hrs to 1630 hrs (one AC operator). Note:- Tradesmen employed in this AC plant shall also Switch ON/OFF Air Blower at PM plant Bldg as and when required and as directed by the Engr-in-charge.

All as per srl item No. 1 here-in-before but AC Plant of capacity 3 x 52 TR Central type AC plant with 2 x 52 TR running capacity and 1 x 52 TR stand by unit installed at RARE EARTH and ANALYTICAL BLDG, on all days excluding Sundays and holidays in one shift from 0830 hrs to 1630 hrs. (one AC operator ) complete all as directed by the Engr-in-charge.

Outsourcing of services for Maintenance of water distribution to furnace process area and water distribution covering entire area of AEC in DMRL complete all as specified and as directed by Engineer-in-Charge.on all days including Sundays & holidays in two shifts. (1st shift from 0600hrs to 1400hrs, 2nd shift from 1400hrs to 2200hrs (one AC operator for each shift)

Note for Item No.1 to 5 : (i) The materials required for the area cleaning and AC plant cleaning (Cotton Waste, Brooms and Carbon Cleaner for Battery terminals) and water pipe for watering in earth pits will be provided by the Contractor and cost of cleaning materials and pipe, provision of Printed Log Books & Stationery required is deemed to be included in quoted rate (iii) Only after handing over duty to Reliever, the duty person should leave the installation in Shift duties (iv) In case of theft of any item from installation, recovery shall be made from the contractor as per direction of Engr-in-charge. (vi) Qualification / Experience certificate (minimum 05 years) with age not more than 60 Years of all staff employed shall be submitted. (v) Contractor to comply with all the respective notes of Particular Specifications attached.

Supply & charge refrigerant gas R-410 upto required level complete all as directed.

Annual comprehensive maintenance contract of the following equipment of central AC plant at AEC facility DMRL, including supply & fixing of spare parts of any nature (Major/Minor,Except Desicant Rotor & Drive Motor, remaining all are included) including service Engineer visit as and when required and repair of AC plant, all types of repairs / replacement of Refrigeration & Electrical spares, leak testing & Refrigerant Gas charging as required, Descaling of condensers, Rewinding of Motors, and any other Miscellaneous repairs to AC plant to maintain desired humidity condition i.e., 30% to 80% as required basis all as specified to maintain the temperature of 21° +/- 2° C on Users requirement all as directed by Engr-in-Charge :- (a) Chiller CGWH – 30 TR water cooled scroll chiller – 03 Nos. Make:-TRANE. (b) Humidifier – 01 No. Make:- NORDMANN (c) Dehumidifier FVB 4000– 01 No. Make:-BRYAIR (d) BMS system – 01 No. Make:-SAUTER (e) Cooling tower 15 LPS capacity FRP Type - 01No. Make:- PAHARPUR (f) AHU’s – 02 Nos (2 TR capacity each). Make:- ETA (g) FCU’s – 02 Nos (2 TR capacity each). Make:- ETA (h) Chilled water pump set 7.5 HP - 02 Nos. Make:- KIRLOSKER (i) Condenser water pump set 12.5 HP - 02 Nos. Make:- KIRLOSKER (j) Motor control panel 01No and 02 Nos AHU's electrical panel. Make:- L&T / SIEMENS (k) Ducts insulation piping and valves etc.

Note:- In case the contractor fails to repair the AC plant within 48 hrs of breakdown due to any circumstances,a penalty of Rs.5000.00 for 48 hours or part thereof shall be recovered from contractor's payments. The decision of GE on this account shall be final and binding.

Note for manpower employed through contract : (i) In case of requirement, tradesmen provided for one area may be utilized in other areas at the discretion of the department without any extra cost to department as directed by Engineer-in-Charge. (ii) Rate quoted is deemed to be included for leave reserve/Off of the staff employed. (iii) The rate quoted shall be deemed to include the cost of uniform, Shoes, Helmet, Belt and insulation gloves for tradesmen employed. (iv) The necessary Tools & Plants shall be provided by the contractor.(v) Minimum wages to the employees to be paid for 30 days per month (wages as declared in Sch 'A' Notes) and the same is to be deemed to be incuded in the quoted rate. (vi) Each employee should be facilitated with adhoc bonus privilage as applicable in accordance with Govt of India and the same is be deemed to be incuded in the quoted rate. (vii) During operation of installations / equipments necessary safety precautions / safety devices to be adopted and the quoted rate is deemed to be included for same & in case any eventuality to tradesmen/Operators the contractor is fully responsible.(viii) The contractor will adhere to pay monthly payment cycle to the employees irrespective of RAR/Funds availability with department failing which be will be laible to pay 5% penalty of monthly quoted rate as per CA in the next RAR.

M&L for Voltas-3 x 92 TR air screw type chiller AC Plant inspection and fault rectification carried out by Manufacturer's Engineer for releasing out locking, setting the programming for proper functioning of AC plant and to rectify other minor/major problems, including Re-programming & rectify faults occured as and when, with all necessary tools and machines and other major problem & faults (faults either software problem or hard ware) including providing new software if software not working properly with all necessary tools and machinaries. Note:- (i) Cost of Transportation & loading charge with hiring of machines and equipments are deemed to be included in quoted rates. (ii) The rate does not include material cost. Material shall be mesured & paid separately under relavent items. (iii) The service Engineer shall be from OEM only.

All as per serial item No.8 here-in-before but for 30 to 52 TR Capacity AC Plant/ Chiller. Make :TRANE, BLUE STAR

S & F in repairs fan motor for 1.5 Ton window/split type AC of any make complete all as directed.

Repair/taking down the split type AC of 1.5 Ton capacity of any make and disconnecting the components and accessories and repairs to cabinet by welding, rivetting and reassembling and reinstalling in the existing position after servicing and connecting, testing and commissioning complete all as directed. Note:- Replacement of unserviceable spares/ components shall be measured and paid separately.

All as per serial item No. 11 here-in-before but for 2.0/3.0 Ton Capacity Split type AC

All as per serial item No. 11 here-in-before but for 1.5/2.0 Ton Capacity Split type AC

Supply & installation in repairs PCB includng display unit complete suitable for package type AC plant of 30 TR Capacity including necessary control wiring, relpacmenet of lugs, clamps including testing complete all as directed. Make :- Voltas/Blue star (As per existing Model)

S&F including testing and commissining of Scroll type Compressor unit suitable for 12 TR Package/ central type AC plant, thermally protected, maximum system test pressure low/high side : 25 bar(g) / 31.9 bar (g), Maximum differential test pressure : 24 bar, 3 Phase,with working voltage of 380-400V, 50 Hz complete with all necessary fittings, including dismantling existing unserviceable compressor and Seperate from existing refrigerant & Electrical line, including brazing, leak testing complete with cable connections with lugs complete all as directed. Make : Danfoss/ Indfoss/ Camipro/Trane .

S&F in repairs Starting Relay for 2.0/1.5 Ton capacity Window/Split type AC's complete all as directed.

S&F in repairs Overload protector SR 1622 for Window/Split type AC's complete all as directed.

S&F in repairs Starting capacitor of 80 to 100 mfd for Window/Split type AC's complete all as directed.

S&F in repairs Starting capacitor of 100 to 120 mfd for Window/Split type AC's complete all as directed

S&F in repairs Running capacitor of 36 mfd for Window/Split type AC's complete all as directed.

S&F in repairs Running capacitor of 45 mfd for Window/Split type AC's complete all as directed.

S&F in repairs Thermostat switch for Window/Split type AC's complete all as directed.

S&F in repairs Blower fan motor suitable for 1.5/2.0 Ton capacity Window/Split type AC's complete all as directed. Note for item Nos. 16 to 24 :- All items to be replaced shall be of same make of existing.

Rewinding of blower motor with same guage and turns and weight of copper enameled wire and replacement of bearing, testing and commissioning of 1.5/2.0 Ton split type AC of any make, any model complete all as directed.

S&F in repairs Fan blade for 1.5/2 Ton capacity Split type AC as per existing make and model complete all as directed.

S&F in repairs Air filter for window/split type AC 1.5/2 Ton as per existing make and model complete all as directed.

S&F in repairs Front grill for window type AC as per existing make and model complete all as directed.

Taking down carefully old burnt/unserviceable compressor unit of 1.5 ton capacity of window type AC of any make and replacing the same with factory reconditioned compressor including necessary accessories i e capillary tube including strainer and mounting materials,etc, welding, brazing, leak testing, vaccumissing and charging the refrigerant gas to the required pressure and weight, reinstalling the AC unit in the same place including testing and commissioning complete all as directed.

All as per Item No-29 here-in-before but of 1.5 Ton capacity Split type AC complete all as directed.

All as per Item No-29 here-in-before but of 2.0 Ton capacity Window type AC complete all as directed.

All as per Item No-29 here-in-before but of 2.0 Ton capacity Split type AC complete all as directed.

All as per Item No-29 here-in-before but of 3.0 Ton capacity of cpacity Split type AC complete all as directed.

Renewal of rewiring for window/split type AC of 1.5/2.0 Ton capacity with copper wire PVC insulated single core of size 48/0.20 mm and clips, terminal connector etc complete all as directed

Cleaning the unit with CTC except evaporator and condensor and leak testing the system with CO2 gas and detecting the leak and repairing, brazing and sealing the leakage including charging the refrigerant R-22 gas to the required pressure and weight of gas for 1.5/2.0 Ton capacity window/split type AC of any make complete all as directed.

All as per serial Item No-35 here-in-before but 3.0(Multi unit)/5.0 Ton capacity window / split type AC Note for item No 35 & 36:- Gas charging will be measured and paid separatey under relevant item of this schedule.

Servicing and overhauling the 1.5/2.0/3.0 Ton capacity (Window/Split) AC with water, chemical air clearner, filter and drying, checking the bolt and nut connections, filling, refixing and testing complete all as directed.

S&F in repairs AC metal clad plug and socket enclousure single pole and neutral with a two pin and earth plug and socket with MCB SP of 5-32 Amps rating complete all as directed Make:- C&S/Standard/Legrand

S & F metallic knob suitable for the particular make Air conditioner for Window/Split type AC's of 1.0/1.5/2.0 Ton capacity including taking down userviceable knob complete all as directed.

S & F evaporating coil made out of 25 SWG copper tubing having 30/34G aluminium fins per length for window AC's of 1.5/2.0 Ton capacity including taking out the unserviceable evaporating coil complete all as directed.

S & F condensor coil made out of 25 SWG copper tubing having 30/34G aluminium fins per CM length for window AC's of 1.5/2.0 Ton capacity including taking out the unserviceable condensor coil complete all as directed.

S&F indoor uint for split type AC of 1.5 TR capacity suitable to existing outdoor unit with necessary connections and testing including taking down unserviceable indoor complete all as directed. Make - BAJAJ/ LG/ VIDEOCON/ HITACHI/ VOLTAS/CARRIER

All as per srl Item No-42 here-in-before but for Split type AC of 2.0 TR capacity complete all as directed.

Cutting the existing window including additions/alterations to make the opening suitable for fixing the window type air conditioners including welding and wood work to match with the adjoining/existing surfaces and shifting the window type air conditioner to the new altered location/ existing including the necessary connections and testing complete all as directed.

Dismantling the water cooler and repairing the body by welding, brazing, riveting where required and making good the stand and bottom portion, painting the external surfaces with one coat of synthetic enamel paint of by machine spray to match with the existing and reassembling and installing in original position and testing complete all as directed.

Cleaning all the parts, condensor unit and capillary tubes and checkng the leakage of gas with CO2 and brazing, rectifying the leakge, including charging the refrigerant gas to required pressure and weight fixing back to the original positon, testing comissioning complete for any make and any capacity of water cooler complete all as directed.

S&F in repairs Relay Assembly for 40/80 Ltrs capacity Water Coolers of any make complete all as directed.

S&F in repairs thermostatic Switch for 40/80 Ltrs capacity Water Coolers of any make complete all as directed.

S&F in repairs fan Motor Single phase, 230V for 40/80 Ltrs capacity Water Coolers of any make complete all as directed.

S&F in repairs fan motor blade of existing size and model for 40/80 Ltrs capacity Water Coolers of any make complete all as directed.

S&F in repairs float valve 15 mm bore with brass spindle and PVC ball complete for 40/80 Ltrs capacity Water Coolers of any make complete all as directed. Make : PRAYAG/ZOLOTO/LEADER/BIR

S&F in repairs push/lift cock 15 mm bore chromium plated for 40/80 Ltrs capacity Water Coolers of any make complete all as directed Make- JAISON/SEIKO/LEADER/ZINITH/HINDWARE/ERA

S&F in repairs overload protector 1022/522, for 40/80 Ltrs capacity Water Coolers of any make complete all as directed.

S&F in repairs starting Capacitor 60/80 Mfd, for 40/80 Ltrs capacity Water Coolers of any make complete all as directed.

S&F in repairs Running Capacitor, for 40/80 Ltrs capacity Water Coolers of any make complete all as directed.

Removing of defective fan motor from water cooler, rewinding of fan motor with same gauge and turns and weight of copper enameled wire and replacement of bearing and refixing, testing and commissioning of water coolers of any make complete all as directed.

Taking out old burnt/unserviceable compressor unit of 40/60 Litre capacity water cooler of any make and repalcing the same with factory recondtinioned compressor unit including necessary nuts, bolts, mounting materials, welding, brazing, leak testing and charging the refrigerant gas, R-22 to the required pressure and weight, reinstalling in the same place including servicing, testing and commissioning complete all as directed.

All as per Item No 57 here-in-before but for 40/80 Litre Capacity water cooler

All as per Item No 57 here-in-before but for 120 Litre Capacity water cooler.

Dismantling the water cooler of 40/80 litres capacity of any make and removing the defective tank, leak testing, repairing the cooling tubes, filling the glass wool assembly testing and commissioning and fixing in its existing place complete all as directed.

S&F in repairs drain tray and PVC flexible pipe and connecting to inlet pipe for 40/80 ltrs capacity water cooler, including holding clamps complete all as directed.

Servicing the water cooler of any make including cleaning the water tank, condensor and the side body by washing, rubbing down including removing all the dust, dirt complete all as directed.

Dismantling of desert cooler of any size and make, inlcuding cleaning water tank, body complete by disconnecting the connections, renewing of nuts, bolts and and reinstalling, testing complete all as directed.

S&F in repairs Water circulation pump motor for desert coolers of capacity 3000/4000 CFM and of any make complete all as directed.

S&F in repairs fan motor of desert cooler single phase, 215 Volts, AC, 50 Hz of capacity 3000/4000 CFM of any make complete all as directed.

S&F in repairs fan blade of desert cooler Metallic/PVC of capacity 3000/4000 CFM of any make complete all as directed.

S&F in repairs KHAS-KHAS (One set of three) for desert coolers of capacity 3000/4000 CFM of any make complete all as directed.

S&F in repairs PVC water tube and distribution with 3 way PVC connection, PVC bends assembly complete, for desert coolers capacity 3000/4000 CFM of any make complete all as directed.

S&F in repairs Caster wheels (Set of Four) complete, for desert coolers of capacity 3000/4000 CFM of any make complete all as directed.

S&F in repairs front grill of desert cooler of capacity 3000/4000 Cum of any make complete all as directed

S&F in repairs switch assembly for desert coolers of capacity 3000/4000 Cum of any make complete all as directed.

S&F in repairs Capacitor of 4/5 MFD capacity suitable for fan motor of desert coolers of capacity 3000/4000 CFM of any make complete all as directed.

M&L for wiring to desert coolers with PVC insulated multistranded, copper conductor single core of size 1.5 Sqmm including PVC clamps, brackets as required and connection, water pump, control switches including taking down old wiring complete all as directed.

M&L for connection wire of 3 core copper wire PVC insulated of size 4 Sqmm for any capacity window type/Split type AC, water coolers/desert coolers including taking down old unserviceable connection wire complete all as directed. Make- FINECAB/PLAZA/FINOLEX

S&F in repairs plug top 3 pin 5 Amps for desert cooler/water coolers/ refrigerator complete all as directed.

S&F in repairs 3 pin industrial plug top suitable for industrial metal clad socket, single phase, 230 Volts, AC including reconnecting complete all as directed. Make- STANDARD/LEGRAND

S&F in repairs copper tube of size 3/8" / 5/8" dia includng necessary soldering, flaring and connecting and testing in between indoor to out door units of split type AC 1.5 Ton complete all as directed.

All as per Item No 77 here-in-before but size of copper tubing 1/2" / 1/4" dia complete all as directed.

S&F in repairs insulation felt for split type AC 1.5 / 2.0/3.0 Ton copper tube as in inlet/outlet to out door unit complete all as directed.

S & Fix in repairs remote control assembly set suitable for split type AC 1.5 / 2.0/3.0 Ton capacity of any make complete all as directed.

S&F in repairs Oscillation motor for the indoor unit of the split type AC of 1.5/2.0 Ton capacity complete all as directed.

Supply & charge refrigerant gas R-22 upto required level complete all as directed.

S&F in repairs AC indoor unit oscillatory fin complete all as directed

S&F in repairs indoor blower for split type AC as per existing model, sample complete all as directed

S&F in repairs fan motor bearing and bush for window/split type AC complete all as directed

Taking down carefully existing serviceable split type AC unit of 1.5/2.0 TR capacity and refixing in another location in any position and height complete with all connected work like making holes, fixing mounting brackets and all other required accessories including making good the distrubed surfaces complete all as direcrted

S&F in repairs fan motor bearing and bush for water cooler complete all as directed

S&F in repairs capillary tube including strainer suitable for split type AC 1.5/2.0 TR capacity with necessary brazing, leak testing complete all as directed.

S&F in repairs voltage stabilizer single phase, 230 Volts, AC, 50 Hz of capacity 4 KVA wall mounting type suitable for 1.5 TR split type AC/ window type AC with low and high cut off and intelligent delay input voltage 160 Volts to 260 Volts complete all as directed.

All as per Item No-89 here-in-before but 5 KVA capacity voltage stabilizer complete all as directed. Make for Item Nos. 89 & 90 :- 'V' GUARD/ITL/BLUEBIRD/KENLIE

Repairing of stabilizer of 4KVA/5KVA capacity including rewiring of Transformer including major/minor spare parts complete all as directed.

Taking out unserviceable 1 Pole contactor from the split type AC and replacing the same with new contactor suitable for 240V, 50Hz coil complete all as directed.

Taking out unserviceable 2 Pole contactor from the split type AC and replacing the same with new contactor suitable for 240V, 50Hz coil complete all as directed.

S&F in repairs drain pipe for rectifying water leakage from AC units complete all as directed.

S&F Brass Valves (set of 2 Nos) suitable for split type AC of capacity 1.5/2TR as per existig type including necessary brazing and sealing the leakage, Leak testing , charging the Refrigerant gas up to required pressure including taking down the unserviceable brass valves complete all as directed. Note :- Gas charging will be measured and paid under relevant item of this schedule.

S&F in repairs wall mounting brackets made out of steel ( set of 02Nos) coated with anti corrosive paint suitable for mounting outdoor unit of Split AC up to 2.0 TR capacity including all provisions and making good to disturbed surface of wall

Descaling of condensers (3 Nos.) of AC plant of capacity 7.5 TR after by passing the cooling tower, pipes, pumps and circulating the acid with pump, drilling, brushing the tubes and replacing the gasket, neutralizing the surface of the tubes and assembling back including removing the air lock in the system complete all as directed.

All as per srl Item No. 97 here-in-before but for 15 to 25 TR capacity AC Plant

All as per srl Item No. 97 here-in-before but for 40 to 52 TR capacity AC plant

Evacuation of gas from each Chiller Unit of 7.5 TR package type System/central type AC plant and leak testing the system by giving the dry nitrogen by separating the low side /high side of the system and arresting the leaks including replacement of Teflon seating of all the refrigerant line, suction/discharge valves of compressor, gland package of all angle valves flaring off and charging complete all as directed. Note :- Gas shall be measured and paid separately under relevant items of this schedule.

All as per srl item No.100 here-in-before but for 25 to 52 TR AC Plant Chiller system.

All as per srl item No.100 here-in-before but for Air Cooled AC Plant of capacity 92 TR chiller system.

S&F in repairs 'V' belts of size A-28 to 31 complete all as directed Make :- FENNER/ DUNLOP

S&F in repairs 'V' belts of size A-09478 & A-53 complete all as directed

S&F in repairs 'V' belts of size S-09468 & B -78 complete all as directed

S&F in repairs 'V' belts of size B-152 complete all as directed

Supply and charging of the Refrigerant Gas R-134A where ever required complete all as directed.

S & F in repairs new expansion Valve suitable for AC plant of capacity 7.5 TR complete all as directed.

S&F in repairs over Load relays of capacity 15 to 25 amps suitable for ML-1 contactor/MNX contactor, 3-pole power contactors including connecting & Testing complete all as directed.

All as per srl item No.109 here-in-before but for relay of 22 to 30 Amps capacity suitable for ML2 Contactor.

All as per srl item No.109 here-in-before but for relay of 32 to 40 Amps capacity suitable for ML 3 Contactor.

All as per srl item No.109 here-in-before but for Relay of 100 to 125 Amps capacity suitable for MNX 25 Contactor Make for item No. 109 to 112 :- L&T/ SEMENS /LEGRAND/ SCHNEIDER

S&F in repairs of 3 Pole, 415 volts 50Hz Power Contactors ML-1/1.5 including Connecting & testing complete all as directed.

All as per serial item No.113 here-in-before but for ML2 Contactor.

All as per serial item No.113 here-in-before but for ML3 Contactor

All as per serial item No.113 here-in-before but for MNX 25 Contactor

All as per serial item No.113 here-in-before but for MNX 40 Contactor

All as per serial item No.113 here-in-before but for MNX 45 Contactor Make for item Nos. 113 to 118:- L&T/ SEMENS /LEGRAND/ SCHNEIDER

Cleaning of the evaporating coil (AHU coil) upto 15 TR capacity with cleaning Acid by forced feed method to remove the unwanted dust particles formed on the coil, cleaning of the filter, greasing to the AHU bearing of the structure, expansion valve etc and testing complete all as directed.

All as per item No.119 here-in-before but for 25 to 55 TR Capacity.

Cleaning of underground sump capacity of 10000 gallons, by completely removing the water, mud, sludge in sump, applying bleaching powder and scrapping with wire brushes in sump, and fill in cracks of sump with cement complete all as directed.

Cleaning the over head tank having three compartments of 10000 gallons capacity, by draining out the whole water from tank, remove mud, sludge by applying bleaching powder and scrapping with wire brushes in Tank, after cleaning filling the cracks with,M-Seal and cement, complete all as directed.

S & F in repairs pressure gauge assembly of size 60mm to 100mm dia bourdon type/existing type and testing and commissioning complete all as directed

All as per srl item No.123 here-in-before but of 150mm dia. Make for item No. 123 & 124:-GURU/UDAYA

S&F in repairs fins of existing size & model to cooling tower complete all as directed.

S&F in repairs condenser safety valve 15mm to 20mm, with stand pressure 300-800 PSI complete all as directed.

S&F in repairs in Liquid line Filter Dryer suitable for 7.5 to 15 TR capacity Compressor unit complete all as directed.

All as per item No.127 here-in-before but for 25 to 52 TR capacity Compressor unit complete all as directed.

Disconnecting Electrical connections of 75 HP motor installed at PM plant in DMRL and carryout servicing by replacing unserviceable minor spares like bearings, nuts, washers, bolts, etc., and providing insulation to winding coils applying greasing to all movable parts, scrapping and paiting with synthetic enamel paint and reassembling back in its original position to make it functional complete all as directed. Make:- KIRLOSKAR, Model :- 5-70

Draining out the old compressor oil from various compressors and supplying, filling/ top up of compressor oil of Freezol-68/ freezol F-57 complete all as directed.

Cleaning of the AHU units with acid and cleaning fins with high pressure air blower for AC plant's each AHU unit up to 95 TR complete all as directed.

Supply & Fix in repairs overload relay suitable for power Contactor MNX type of capacity 0-60 Amps complete all as directed Make : L&T or it's equivalent.

S&F in repairs ON/OFF Timer 0-120 Seconds suitable for power contactor MNX type complete all as directed Make :L&T or it's equivalent.

S&F in repairs Copper Cable single Core, PVC insulated, multistranded 35 Sqmm with suitable size lugs on both side.

Servicing of all grills installed at PM Plant,DMRL by water wash/Air wash to provide proper cooling inside the process area complete all as directed.

Dismantling the 3HP to 5HP capacity Motor of condenser / Blower/ Pump / Chiller/ AHU / Cooling Tower Motor from installed position, and rewinding the same with super enamelled copper wire of same gauge and turns as per existing, replacement of wornout Bearings fixing back, testing and commissioning complete all as directed. Note : Transportation charges also included in quoted rate

All as per serial item No. 136 here-in-before but for 7.5 HP to 10 HP capacity

All as per serial item No. 136 here-in-before but for 20 HP to 25 HP capacity

Supply & laying MS pipe 125 to 150 mm dia medium grade, including providing Specials, Flanges, Elbows, Tees, Unions, Nipples, Nuts & Bolts, Gasket etc wherever necessary as per site requirement by necessary Fabrication / Fixing etc., and painting to match with the existing including taking down old pipes complete all as directed. Make:-TATA/JINDAL/ZENITH

All as per item No.139 here-in-before but for 80 to 100 mm dia MS Pipe.

S&F in repairs butterfly valve of size 50mm/ 65mm with necessary fabrication work required as per site requirement complete all directed.

All as per item No.141 here-in-before but of size 80mm complete all directed.

All as per item No.141 here-in-before but of size 100mm complete all directed. Make for item No. 141 to 143 :- KARTAR/ COIMBATOUR/ KALBANA/ DURGA/ AUDCO

S&F in repairs of freezing temparature sensor with under voltage 180 to 234 volts and over voltage 246 to 300 volts AC, complete all as directed.

SRI SAI ENTERPRISES

Universal refrigeration and Engineering Company

CHITRA ENGINEERING CORPORATION