Military Engineer Services-MES has published Comprehensive Maintenance Of Central Ac Plant Of Capacity 250 Tr (03 Nos) And Ahu (33 Nos) At Mh Bhopal Under Ge Bhopal Comprehensive Maintenance Of Central Ac Plant Of Capacity 250 Tr (03 Nos) And Ahu (33 Nos) At Mh Bhopal Under Ge Bhopal. Submission Date for this Tender is 20-12-2021. Air Handling Unit Tenders in BHOPAL Madhya Pradesh. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 02-Dec-2021 | Bills of Quantity corrigendum | BOQ | 13-12-2021 |
| 2 | 02-Dec-2021 | Date Corrigendum | Date | 13-12-2021 |
| 3 | 13-Dec-2021 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 20-12-2021 |
| Sl. No. | Item Description |
| 1 | S & F in replacement AHU filter of size 610 mm X 610 mm x 50 mm, efficiency - 90% down to micron and EU-4, size and CFM shall be as per site requirement complete all as specified and directed. [Make: - Thermadyne / Puromatic Dyna or equivalent as approved by GE. |
| 2 | S & F in replacement AHU filter of size 350 mm X 610 mm X 50 mm, efficiency - 90% down to micron and EU-4, size and CFM shall be as per site requirement complete all as specified and directed. [Make: - Thermadyne / Puromatic Dyna or equivalent as approved by GE.] |
| 3 | Taking out the filter from AHU up to 12000 CFM, cleaning the cooling coil with suitable chemical and jet of water pressure with pump and remove all the scales and foreign materials deposited in side coil followed with air pressure to sweep up all the particles and ensure thorough flow of air over the cooling coil and refixing the air filter after cleaning complete all as specified and directed. |
| 4 | 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: - DASSPASS/RECOLD or equivalent as approved by GE.] |
| 5 | S & F in replacement strip heater element SP, 220 V, 50 Hz, 3 KW capacity, length 1.5 feet to 2.0 feet and as per site requirement including wiring and connection complete all as specified and directed. [Make: - DASSPASS/RECOLD or equivalent as approved by GE.] |
| 6 | 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. |
| 7 | 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 1 X 250 TR (1 Nos) for leak proof valve joint, seal other connected controls, flares etc including identify & 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. |
| 8 | S & F in replacement thermostat programmable digital temperature control device for cut off in pre-set Cool/Hot conditions as per the sample complete all as specified and directed. [Make: -Yudinyan/Gefran/Fuji or equivalent as approved by GE.] |
| 9 | M & L for descaling of condenser tube, chiller tube of central AC plant of Cap 2 X 250 TR (2 Nos) by disconnecting the condenser from the system, cleaning by descaling solution of make Hybrid or descaling solution, cleaning condenser tube by nylon brush & MS rod of suitable size, replacement of rubber joints and unserviceable nut bolts complete all as specified and directed. Note: - Whole process of De-scaling should be done by Voltas Refrigerator Mechanics (OEM). Arrangement of required T&P e.g., pump, tube, descaling solution, etc shall be provided by contractor. . |
| 10 | 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. |
| 11 | 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 & 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. |
| 12 | 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 & 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. |
| 13 | 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 & 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. |
| 14 | 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 & 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. |
| 15 | 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 & 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. |
| 16 | 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.] |
| 17 | S & F in replacement "C" Cash heater for compressor of make as per sample complete all as specified and directed. |
| 18 | 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.] |
| 19 | 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.] |
| 20 | 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.] |
| 21 | S & F in replacement Single phase preventor of the LT panel of AC plant, 415 V, 50 Hz, 3 phase complete all as specified and directed. [Make: -L&T/Siemens/Minilec (Model: VSP 2 AC) or equivalent as approved by GE.] |
| 22 | S & F 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 as directed. |
| 23 | S & F 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 as directed. |
| 24 | 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.] |
| 25 | 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.] |
| 26 | 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.] |
| 27 | 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 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, four pole, suitable for 415 V, 50 Hz AC supply complete all as specified and as directed. |
| 28 | S & F in repairs MCCB rated current(In): 100 A/ 125 A, ultimate short circuit breaking capacity (Icu): 30 kA/36 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 as directed. |
| 29 | 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.] |
| 30 | 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.] |
| 31 | S & F in replacement magnetic solenoid Coil 220 volts AC supply all as per sample complete all as specified and directed. |
| 32 | Supply and charging gas R-134 A for compressor as required in servicing complete all as specified and directed. |
| 33 | Supply only phase indication lamps LED type with the colour code as per existing complete all as specified and directed. |
| 34 | 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. |
| 35 | 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.] |
| 36 | M& L for Servicing, oiling and greasing of Chiller unit, of central AC plant of cap 2 X 250 TR (02 Nos), replacement of compressor oil, suction strainer, compressor oil repair kit and liquid filter cartridge etc all as per manufacturer maintenance guideline complete all as specified and directed. Note: Only compressor oil shall be measured and paid separately under respective item of BOQ. |
| 37 | Supply only compressor oil CPI120 for compressor recommended by OEM complete all as specified and directed. [Make: HPCL, Indian Oil, Servo-Friz or equivalent as approved by GE.] |
| 38 | Cleaning the cooling tower (02 Nos) both by applying wire brush, washing powder and other solvent by removing the deposited impurities such as silt, dust particles mud/ sand inside the dome and around the fins, on wire mesh, main shaft etc and other connected items TWO TIMES IN A YEAR all as specified and directed by Engineer-in-Charge. |
| 39 | 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. |
| 40 | S & F in replacement sprinkler of cooling tower of central AC Plant of cap 2 X 250 TR of make as per site requirement or as per sample complete all as specified and directed. |
| 41 | S & F in replacement cooling fins of cooling tower of central AC Plant of cap 2 X 250 TR of make as per site requirement or as per sample complete all as specified and directed. |
| 42 | S & F in replacement fan belt as per site requirement or as per sample complete all as specified and directed. [Make: - DUNLOP/FENNER/ECODRIVE or equivalent as approved by GE.] |
| 43 | S & F in repairs butterfly valve cast iron, PN 1.6, class 125, nominal size 200 mm as per IS 13095: 1991 complete all as specified and as directed. |
| 44 | S & F in replacement water temperature gauge fitted in water circulation circuit, Range- 0 to 50 degree/0 to 30 degree centigrade 0 to 120 degree/0 to 20 degree Fahrenheit) complete all as specified and directed. [Make: - IEBIG/GURU/GLUCK or equivalent as approved by GE.] |
| 45 | S & F in replacement water pressure indicating gauge fitted water circulation circuit (Range - 0 to 100/150 lbs/sqin and 0 to 7/10.6 kg/sqcm complete all as specified and directed. [Make: IEBIG/GURU/GLUCK or equivalent as approved by GE. |
| 46 | Supply and fix sub main wiring complete with and including two Nos single core PVC insulated, unsheathed flexible conductor FR-LSH cables 16 sqmm as per IS 694: 2010, ISI marked, annealed, multistranded copper conductor drawn through and including medium protection stove enamelling rigid steel conduit as per IS 9537 (Part-II): 1981 of suitable nominal size as required at site dia but not less than 20 mm nominal size including all accessories and fixed on walls and 16 sqmm one No single core copper conductor PVC insulated, unsheathed flexible multistranded copper conductor FR-LSH cable for earthing and connected to common earth dolly complete all as specified and directed by Engineer-in-charge. Note - Two runs of 16 sqmm cable, one run of 16 sqmm cable and one run of conduit shall be measured and paid as one unit length. |
| 47 | Supply and fix sub main wiring complete with and including two Nos single core PVC insulated, unsheathed flexible conductor FR-LSH cables 10 sqmm as per IS 694: 2010, ISI marked, annealed, multistranded copper conductor drawn through and including medium protection stove enamelling rigid steel conduit as per IS 9537 (Part-II): 1981 of suitable nominal size as required at site dia but not less than 20 mm nominal size including all accessories and fixed on walls and 6 sqmm one No single core copper conductor PVC insulated, unsheathed flexible multistranded copper conductor FR-LSH cable for earthing and connected to common earth dolly complete all as specified and directed by Engineer-in-charge. Note - Two runs of 10 sqmm cable, one run of 6 sqmm cable and one run of conduit shall be measured and paid as one unit length. |
| 48 | 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 as directed. By Engr-in-Charge. |
| 49 | S & F in replacement thimble with nut and bolt of various size as per site requirement complete all ad specified and as directed. |
| 50 | S & F in replacement Front Mounting add- on aux. Contact Block model - Code -13 100-250 V or as per 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. [Make: - L&T/Siemens/ABB or equivalent as approved by GE.] |
| 51 | M & L for servicing of Humidifier 2/3/4 kW, 415 V AC, single step with following repairs all as directed by engineer in charge (a) descaling the storage tank, water level indicator, heating coil/element with descaling solution/agent and soft brush with non-metallic bristles without affecting thermal insulation/top cover gasket. (b) inspecting control wiring including replacement of u/s wiring, servicing of power contactors etc. (c) replacement of heating element, 3 kW capacity (d) inspecting/testing, servicing of relays, other safety valves Note: Heating element shall be measured and paid separately |
| 52 | M & L for servicing of chiller / condensing pump & 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 all as directed by Engr-in-Charge. |
| 53 | M & L for servicing of chiller / condensing pump & remove the all dirt, rust of shaft impellor by machinery work etc of capacity 10 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 all as directed by Engr-in-Charge. |
| 54 | S & F 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 all as specified and as directed. |
| 55 | S & F in repair/replacement of POP with thermocole of AHU cooling pipe, liquid discharge pipe, etc., suitable for Central/Package AC plant all as specified and as directed. |
| 56 | Supply only handheld battery-operated Temperature cum Humidity meter. |
| 57 | S & F in repair/replacement of nitrile rubber of 19 mm or existing size of AHU cooling duct, etc., suitable for Central AC plant all as specified and as directed. |
| 58 | M & L for cleaning of complete pipeline & Valve connected from AC plant to AHUs with chemical solution by pressure pump with specific pressure for removal of dirt and scale deposited in pipe, solution to be recommended by OEM. |
| 59 | S & F Variable frequency drive (VFD) of 18.5 KW (25 HP) 50 Hz complete all as specified and directed by Engr-in-Charge. Make: ABB Model No -ACS310-03E-41A8-4 or equivalent in L&T SX2000, Crompton. |
| 60 | 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 by Engr-in-Charge |
| 61 | Taking down main switch/MCB DB/ MCCB DB/ sheet metal enclosure by disconnecting the electric supply including MCB/MCCB/Cut out etc. any type and size complete all as specified and as directed. |
| 62 | Taking down old unserviceable submain wiring 1.5 sqmm or 2.5 sqmm or 4 sqmm or 6 sqmm or 10 sqmm aluminium/copper conductors any number including batten/conduit/ casing capping including removing materials to store for keeping in safe custody or for taking credit and making good disturbed surface to match the existing surface complete all as specified and as directed. |
| 63 | Taking down old unserviceable submain wiring 16 sqmm or 25 sqmm aluminium/copper conductors any number including batten/conduit/ casing capping including removing materials to store for keeping in safe custody or for taking credit and making good disturbed surface to match the existing surface complete all as specified and as directed. |
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