COMPREHENSIVE MAINTENANCE OF CENTRAL AC PLANT AND COOLING APPLIANCES AT MH BHOPAL UNDER GE BHOPAL

Amount

Note :(i) Please refer Sch A/ BOQ Notes before quoting the tender for all phases/ items mentioned below. (ii) Amount of Schedule of credit shall be deducted offline

M&L for complete descaling of condenser, evaporator unit of chiller of Make: Voltas, Model No. ACEGWFXR2501MLS1, of 250 TR capacity by disconnecting from the system, cleaning by descaling solution as recommended OEM, cleaning condenser tube by nylon brush and mild steel rod of suitable size, replacement of rubber joints and unserviceable nut bolts including repair of leakage tube if any complete all as specified and as directed. Note: - Whole process of de-scaling should be done by Voltas Refrigerator Mechanics (OEM). Arrangement of required T&P for example pump, tube, descaling solution, etc shall be provided by the contractor.

Supply only compressor oil grade CP 120 and of specifications as existing at the site complete all as specified and directed. Make- Solest

Supply only oil return filter 3/8 and of specifications as existing at the site complete all as specified and directed. Make -Danfoss

Supply only slide valve O ring and of specifications as existing at the site complete all as specified and directed.

Supply only oil filter dryer core of both refrigerant circuit and of specifications as existing at the site complete all as specified and directed.

Supply only water differential switch and of specifications as existing at the site complete all as specified and directed.

Supply only contactor 3 TF51 and of specifications as existing at the site complete all as specified and directed.

Supply only single phase preventer and of specifications as existing at the site complete all as specified and directed.

Supply only MCS EVX controller and of specifications as existing at the site complete all as specified and directed.

Supply only suction pressure transducer and of specifications as existing at the site complete all as specified and directed.

Supply only industrial type temperature sensor of evaporator entering, condenser entering and evaporation leaving discharge temp for chiller with complete "U" Shape pipe fittings of existing type and connected fittings and of specifications as existing at the site complete all as specified and directed.

Supply only unloading plunger and of specifications as existing at the site complete all as specified and directed.

Supply only oil filter of both refrigerant circuit and of specifications as existing at the site complete all as specified and directed.

S&F of mild steel ERW pipe of outside dia 219.1 mm, thickness 6.3 mm insulated with Class-O closed cell elastomeric nitrile rubber (of Make Aerocell) tubular sleeve sections of 19 mm thickness complete all as specified and directed.

S&F in repairs butterfly valve cast iron, PN 1.6, class 125, nominal size 65 mm as per IS 13095: 1991 complete all as specified and directed.

Supply and installation in repairs of 200 mm cast iron, Y-type strainer flange ends with fittings (GI Nut Bolts, gasket etc) etc. complete all as specified and directed.

Supply and filling refrigerant gas R- 134A in sealed cylinders complete all as specified and directed. NOTE: - Empty gas cylinders shall be returned to contractor after use.

S&F in repairs air relief valve, single air valve small orifice type (S1), scrwed ends, 15 mm nominal size as per IS 14845: 2000 complete all as specified and directed.

S&F in repairs contactor model - Code -13, 100-250V or as per the site requirement AF265-40 (1SFC101066M0201), AC 415 V, 50 Hz , 3 phase, 4 pole for contractor of LT panel of AC plant complete all as specified and directed.

S&F of variable frequency drive (VFD) of 18.5 KW (25 HP) 50 Hz complete all as specified and directed. Make: ABB Model No -ACS310-03E-41A8-4 or equivalent in L&T SX2000, Crompton.

Cleaning the cooling tower by cleaning chemical 1039XL, 1031XL and applying wire brush, solvent by removing the deposited impurities such as silt, dust particles mud, sand inside the dome and around the fills, on wire mesh, main shaft etc and other connected items complete all as specified and directed.

S&F in replacement sprinkler of cooling tower of central AC Plant of cap 250 TR of make as per the site or as per approved complete all as specified and directed.

S&F in repairs PVC fills in cooling tower, size 600 mm X 300 mm X 150 mm, honeycomb type, made of virgin PVC, to be installed in cooling tower for central AC Plant of capacity 250 TR of make as per site requirement or as per approved by the GE complete all as specified and directed.

S&F of butterfly valve cast iron, PN 1.6, class 125, nominal size 200 mm as per IS 13095: 1991 complete all as specified and directed.

M&L for servicing of chiller/ condensing pump and remove the all dirt, rust of shaft impellor by machinery work etc of capacity 25 HP and gland packing, studs and nut bolts with bushes with two coats of paints after primer on angle on which motor fixed etc as required at site complete all as specified and directed.

M&L for servicing of primary and secondary pump and remove all dirt, rust of shaft impellor by machinery work etc. of capacity 7.5 HP and gland packing, studs and nut bolts with bushes with two coats of paints after primer on angle on which motor fixed etc. as required at the site complete all as specified and directed.

M&L for cleaning of condensing coil of AHU and valve with chemical solution by pressure pump with specific pressure for removal of dirt and scale deposited in pipe, solution to be recommended by OEM including supply and installation of double tube air heater 3 kW (Make Daspass) - 08 Nos with thermostat and make it functional from troubleshooting of humidity complete all as specified and directed.

S&F of transformer 220 V AC to 24 V AC, AT140B1024 Class 2 PRI-1-COM, 2-208V, 3-240V, 60 Hz, 0.22A SEC-4-5 24VAC, 40 VA complete all as specified and directed.

S&F of AHU actuator 24 V 50 Hz 6 VA, Class 2 ML7420A8088-SBE065 Size DN 65 flow accuracy 4% 3/4'' stroke 1.0 min complete all as specified and directed.

S&F of AHU thermostat complete all as specified and directed.

S&F in repairs pre-filter, anodised aluminium frame, filter media of non-woven synthetic supported by aluminium expanded mesh on one side and finished with HDPE mesh on the other side, Efficiency-99% down to 5 micron, water washable and air cleanable, size 610mm x 610mm x 50mm complete all as specified and directed. Make: Thermadyne, American air filter, Camfil air filter, Dyna Filters Pvt. Ltd.

S&F in repairs pre-filter, anodised aluminium frame, filter media of non-woven synthetic supported by aluminium expanded mesh on one side and finished with HDPE mesh on the other side, Efficiency- 99% down to 5 micron, water washable and air cleanable, size 305mm x 610mm x 50mm complete all as specified and directed. Make: Thermadyne, American air filter, Camfil air filter, Dyna Filters Pvt. Ltd.

S&F in repairs pre-filter, anodised aluminium frame, filter media of non-woven synthetic supported by aluminium expanded mesh on one side and finished with HDPE mesh on the other side, Efficiency- 99% down to 5 micron, water washable and air cleanable, size 305mm x 305mm x 50mm complete all as specified and directed. Make: Thermadyne, American air filter, Camfil air filter, Dyna Filters Pvt. Ltd.

S&F in repairs pre-filter, anodised aluminium frame, filter media of non-woven synthetic supported by aluminium expanded mesh on one side and finished with HDPE mesh on the other side, Efficiency- 99% down to 5 micron, water washable and air cleanable, size 580mm x 580mm x 50mm complete all as specified and directed. Make: Thermadyne, American air filter, Camfil air filter, Dyna Filters Pvt. Ltd.

S&F in repairs high efficiency particulate air filter (HEPA), flange type, anodised aluminium frame, filter media of micro glass fiber having water repellent property, Efficiency- 99.97% down to 0.3 micron, temperature resistance upto 1200C, humidity resistance upto 100% RH, minimum 1000 CFM air flow, size 610mm x 610mm x 305mm complete all as specified and directed. Make: Thermadyne, American air filter, Camfil air filter, Dyna Filters Pvt. Ltd.

S&F in repairs high efficiency particulate air filter (HEPA), flange type, anodised aluminium frame, filter media of micro glass fiber having water repellent property, Efficiency- 99.97% down to 0.3 micron, temperature resistance upto 1200C, humidity resistance upto 100% RH, minimum 500 CFM air flow, size 305mm x 610mm x 305mm complete all as specified and directed. Make: Thermadyne, American air filter, Camfil air filter, Dyna Filters Pvt. Ltd.

S&F in repairs high efficiency particulate air filter (HEPA), mini pleat box type, anodised aluminium frame, filter media of micro glass fiber having water repellent property, Efficiency- 99.97% down to 0.3 micron, temperature resistance upto 1200C, humidity resistance upto 100% RH, minimum 1000 CFM air flow, size 610mm x 1219mm x 90mm complete all as specified and directed. Make: Thermadyne, American air filter, Camfil air filter, Dyna Filters Pvt. Ltd.

S&F in repairs high efficiency particulate air filter (HEPA), mini pleat box type, anodised aluminium frame, filter media of micro glass fiber having water repellent property, Efficiency- 99.97% down to 0.3 micron, temperature resistance upto 1200C, humidity resistance upto 100% RH, minimum 750 CFM air flow, size 610mm X 915mm X 69mm complete all as specified and directed. Make: Thermadyne, American air filter, Camfil air filter, Dyna Filters Pvt. Ltd.

S&F in repairs bag filter box type, anodised aluminium frame, filter media of non-woven synthetic supported by aluminium expanded mesh on one side and finished with HDPE mesh on the other side, Efficiency- 99% down to 5 micron, water washable and air cleanable, size 610mm x 610mm x 300mm complete all as specified and directed. Make: Thermadyne, American air filter, Camfil air filter, Dyna Filters Pvt. Ltd.

S&F in repairs bag filter box type, anodised aluminium frame, filter media of non-woven synthetic supported by aluminium expanded mesh on one side and finished with HDPE mesh on the other side, Efficiency- 99% down to 5 micron, water washable and air cleanable, size 305mm x 610mm x 300mm complete all as specified and directed. Make: Thermadyne, American air filter, Camfil air filter, Dyna Filters Pvt. Ltd.

S&F in replacement cooling fins of cooling tower of central AC Plant of capacity 250 TR of make as per site requirement or as per sample complete all as specified and directed.

S&F in replacement fan belt as per site requirement or as per sample complete all as specified and directed.

S&F in replacement micro process computerised mother board PLC controller suitable for central AC Plant 250 TR Panel of Make: (MCS MAGNUM) for Voltas Chiller complete all as specified and directed.

S&F in replacement thimble with nut and bolt of various size as per site requirement complete all ad specified and directed.

S&F of rotational moulded polyethylene double layer water tanks (vertical cylindrical with close top) as per IS 12701: 1996 of 2000 litres capacity hoisted and fixed in position including provision of 20 mm /15 mm dia medium grade GI pipe for connecting inlet, outlet, over flow and washout pipes complete all as specified and directed.

S&F in repair/replacement of POP with thermocole of AHU cooling pipe, liquid discharge pipe, etc., suitable for Central/Package AC plant complete all as specified and directed.

Supply only handheld battery-operated Temperature cum Humidity meter complete all as specified and directed.

S&F in repair/replacement of nitrile rubber of 19 mm or existing size of AHU cooling duct, etc., suitable for central AC plant complete all as specified and directed.

M&L for air leakage testing on AHU Duct from one end to other end if any rectified immediately by repairing/welding complete all as specified and directed.

S&F in replacement CT fan blade for CT motor of cooling tower of central AC Plant of capacity 2 X 250 TR of make as per site requirement or as per sample complete all as specified and directed.

S&F in replacement strip heater element SP, 220 V, 50 Hz, 2 KW capacity, length 1.5' to 2.0' and as per site requirement including wiring and connection complete all as specified and directed. Make:- DASS PASS/ RECOLD or equivalent as approved by GE.

S&F in replacement strip heater element SP, 220 V, 50 Hz, 3 KW capacity, length 1.5' to 2.0' and as per site requirement including wiring and connection complete all as specified and directed. Make:- DASS PASS/ RECOLD or equivalent as approved by GE.

S&F in replacement AHU blower shaft upto 12000 CFM, hollow or solid made out of high-strength steel, including machine work up to required dia and length, making slot, key and hole and renewal of backet bearings as per site requirement and testing complete all as specified and directed.

M&L for pumping down the existing refrigerant gas in separate cylinder immediately after end of season and starting of season to carry out pressure leak test by nitrogen gas of the system of AC plant 250 TR (1 Nos) for leak proof valve joint, seal other connected controls, flares etc including identify and rectify of leak defects and maintaining constant pressure of 160 lbs on low side and 200 lbs at high side at least 24 hrs complete all as specified and directed.

Taking out old perished / worn out mechanical oil seal of compressor at coupling end and replacing it with the genuine Voltas specified make, checking for no leakage of oil/gas, testing and commissioning to the entire satisfaction of Engineer-in-Charge complete all as specified and directed. Note - Gas & Oil required for charging after replacement of mechanical oil seal shall be measured and paid separately.

Taking out old defective burnout motor of capacity 25 HP, 3 phase, 440 V, 50 Hz from foundation and transfer it to workshop for rewinding with super enamelled copper wire of existing size and gauge and replacement of DE & NDE bearing so as to match the manufacturers original specification and refitting the same, testing and commissioning complete all as specified and directed.

Taking out old defective burnout motor of capacity 10 HP, 3 phase, 440 V, 50 Hz from foundation and transfer it to workshop for rewinding with super enamelled copper wire of existing size and gauge and replacement of DE & NDE bearing so as to match the manufacturers original specification and refitting the same, testing and commissioning complete all as specified and directed.

Taking out old defective burnout motor of capacity 7.5 HP, 3 phase, 440 V, 50 Hz from foundation and transfer it to workshop for rewinding with super enamelled copper wire of existing size and gauge and replacement of DE & NDE bearing so as to match the manufacturers original specification and refitting the same, testing and commissioning complete all as specified and directed.

Taking out old defective burnout motor of capacity 5 HP, 3 phase, 440 V, 50 Hz from foundation and transfer it to workshop for rewinding with super enamelled copper wire of existing size and gauge and replacement of DE & NDE bearing so as to match the manufacturers original specification and refitting the same, testing and commissioning complete all as specified and directed.

Taking out old defective burnout motor of capacity 3 HP, 3 phase, 440 V, 50 Hz from foundation and transfer it to workshop for rewinding with super enamelled copper wire of existing size and gauge and replacement of DE & NDE bearing so as to match the manufacturers original specification and refitting the same, testing and commissioning complete all as specified and directed.

S&F in replacement fuses HRC cylindrical type model No 3NA7260 OPC fuses of rating 400 Amps LT panel of AC plant complete all as specified and directed. Make - L&T/Siemens/Minile or equivalent as approved by GE.

S&F in replacement control air damper for AHU duct of model No VCB ALCG manual type complete all as specified and directed. Make: -CONIARE or equivalent as approved by GE.]

S&F in replacement front mounting Add-On aux contact block, model - MNX, 3 NO + 1 NC, AC 415 V, 50 Hz, 3 phase for contractor of LT panel of AC plant complete all as specified and directed. Make: - L&T/Siemens/Minilec/ABB or equivalent as approved by GE.

S&F in replacement front mounting Add-On aux. contact block model - MNX A1, 3 NO + 1 NC AC 415 V ,50 Hz, 3 phase for contractor of LT panel of AC plant complete all as specified and directed. Make: -L&T/Siemens/Minilec/ABB or equivalent as approved by GE.

S&F of miniature circuit breakers (MCB), four pole with three protected pole (TPN), unenclosed, panel board type, screw type terminals for external copper conductors, C-type instantaneous tripping, rated voltage 415 V three phase, rated frequency 50 Hz, rated current 50 A, rated short circuit capacity 10 kA, any type of fixation, protection IP 20 complete all as specified and directed.

S&F of miniature circuit breakers (MCB), four pole with three protected pole (TPN), unenclosed, panel board type, screw type terminals for external copper conductors, C-type instantaneous tripping, rated voltage 415 V three phase, rated frequency 50 Hz, rated current 40 A, rated short circuit capacity 10 kA, any type of fixation, protection IP 20 complete all as specified and directed.

S&F in replacement contactor of compressor control panel 3 phase, AC, 415 V all as per site requirement complete all as specified and directed. Make-Siemens (Model: 3TS51)/L&T/Hager or equivalent as approved by GE.

S&F in replacement contactor of compressor control panel 3 phase, AC, 415 V all as per site requirement complete all as specified and directed. Make-Siemens (Model: 3TS53) /L&T/Hager or equivalent as approved by GE.

S&F in replacement thermal overload relay of range 9-15A, 14-23A, for control panel Type -Direct Mounting on MNX complete all as specified and directed. Make: - L&T/Siemens/Hager or equivalent as approved by GE.

S&F in repairs MCCB rated current(In), 320 A/ 420 A, ultimate short circuit breaking capacity (Icu), 36 kA, service short-circuit breaking capacity(Ics) 100% of Icu, impulse with stand voltage (Uimp) 8 kV, insulation voltage (Ui) 690 V, utilization category A, pollution degree 3, degree of protection IP 40, adjustable thermal (80% to 100%) and adjustable magnetic (5-10 times) setting, four pole, suitable for 415 V, 50 Hz AC supply complete all as specified and directed.

S&F in repairs MCCB rated current(In) 100 A/ 125 A, ultimate short circuit breaking capacity (Icu) 30 kA/25 kA, service short-circuit breaking capacity (Ics) 100% of Icu, impulse withstand voltage (Uimp) 8 kV, insulation voltage (Ui) 690 V, utilization category A, pollution degree 3, degree of protection IP40, adjustable thermal (80% to 100%) and adjustable magnetic (5-10 times) setting, three pole, suitable for 415 V, 50 Hz AC supply complete all as specified and directed.

S&F in replacement contactor of compressor control panel, 25 to 30 Amps, 3 phase, AC, 415 V all as per site requirement complete all as specified and directed. Make-Siemens (Model: ACBAX 25 to 30 Amps) /L&T/Hager or equivalent as approved by GE.

S&F in replacement magnetic solenoid coil assembly complete with harness of compressor Loading circuit, single phase, 6 to 18 Bar complete all as specified and directed. Make: - Sanlac/ Denfoss (Model APS -1) or equivalent as approved by GE.

S&F in replacement magnetic solenoid Coil 220 volts AC supply all as per sample complete all as specified and directed.

Supply only phase indication lamps LED type with the colour code as per existing complete all as specified and directed.

S&F in replacement V-belt from AHU motor with the make and size as required and as per sample complete all as specified and directed.

S&F in replacement Transducer PT3-30 BAR of compressor with harness all as per site requirement complete all as specified and directed. Make: - Voltas (PIN: M5186-10198P-030BG Model: M5 186-10198P-030BG) or equivalent as approved by GE.

S&F in replacement of finned air double tube of capacity 3KW, total length 24" long, H to H length 22.75" long single phase 230 volt, 50 Hz suitable for AHUs complete all as specified and directed.

S&F in replacement of finned air double tube of capacity 3KW, total length 33.5" long, H to H length 31.75" long single phase 230 volt, 50 Hz suitable for AHUs complete all as specified and directed.

Deduct amount of Rs. 26,290.00 for Schedule of credit (calculation will be done off line)

MODI CORPORATION (BID ID -3246043)