Military Engineer Services-MES has published Repair/Maintenance Of Central Ac Plant , Fire Alarm And Fire Fighting Equipment Installed At Likabali Under Ge Birchgunj Mily Stn , Portblair. Submission Date for this Tender is 09-05-2020. Fire Fighting Consumable Tenders in Port Blair Andaman And Nicobar Islands. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 31-Mar-2020 | Corrigendum NO 1 | Date | 16-04-2020 |
| 2 | 16-Apr-2020 | Corrigendum | Date | 24-04-2020 |
| 3 | 21-Apr-2020 | Date Corrigendum | Date | 09-05-2020 |
| Name of Work : REPAIR/MAINTENANCE OF CENTRAL AC PLANT, FIRE ALARM AND FIRE FIGHTING EQUIPMENT INSTALLED AT LIKABALI UNDER GE BIRCHGUNJ MILY STN, PORTBLAIR. | |||||
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| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | M&L for descaling the shell and tube condenser of 50TR (4x12.5TR) capacity chiller of AC plant by circulating the descaling chemical (scale gun/ HCL acid) through condenser tube by pressure feeding method after disconnecting condenser water lines and opening the end covers of both side, brushing condenser water tubing, removing the scales, normalising the copper surface by circulating chemical agent, refixing/ assembling all dismantled parts, replacing gasket set etc., testing, running the system to the required cooling effect complete to the entire satisfaction of the Engineer-in-Charge all as specified and as directed. | 2 | Each job | |
| 2 | 2 | M&L for cleaning/ servicing the AHU of AC plant, 13000CFM capacity by pressure air method using air blower and cleaning 6 rows of chilled water cooling coil section 12 FPI with cleaning solution, descaling by chemical agent, cleaning the AHU filter by using high pressure air, greasing to AHU blower shaft/ motor bearing for smooth functioning, cleaning the AHU base tray, etc., complete to the entire satisfaction of the Engineer-in-Charge all as specified and as directed. \n | 2 | Each job | |
| 3 | 3 | M&L for pressure leakage testing of complete system of Central AC plant using dry Nitrogen gas by isolating the cooling coil from both ends of high side and low side, pumping down the refrigerant gas, keeping in safe condition for refill, charging the dry nitrogen gas for pressure leak test, after detecting leak point release the nitrogen gas, rectifying the leak point by means of soldering/ brazing and connecting the cooling coil with system, vaccumised the complete system and re-charge the system by refrigerant, top up of additional quantity of refrigerant gas if required, etc., including testing and commissioning to the required cooling effect complete to the entire satisfaction of the Engineer-in-Charge all as specified and as directed by Engineer-in-Charge.\nNotes :- (a) Cost of Nitrogen gas required shall deemed to be included in the quoted rate. (b) Refrigerant gas required shall be measured and paid separately under respective item of this Schedule. | 2 | Each job | |
| 4 | 4 | S&F in repair/ replacement of Bearings and seals of driven unit of the induced draught Cooling Tower by dismantling the unit including machining of the shaft, metal refilling, assembling/ refixing, testing and commissioning complete to the entire satisfaction of the Engineer-in-Charge all as specified and as directed. | 2 | Job | |
| 5 | 5 | S&F in repair/ replacement of Blower Motor 10 HP for AHU 13000 CFM capacity AC plant all as specified and as directed. \n | 1 | Each | |
| 6 | 6 | S&F in repair/ replacement of fan motor 3 HP for Cooling Tower 50TR capacity all as specified and as directed. | 1 | Each | |
| 7 | 7 | M&L for repair/ servicing motor of 10HP capacity, three phase, 50 C/S by disconnecting/ dismantling (electrically & mechanically) and transporting to workshop, opening the motor, cleaning, greasing to bearing/ bushes, replacing worn out bearings, nuts & bolts, dismantling/ taking down burnt out winding, rewinding the motor with same guage, weight and same number of turns of super-enamelled Copper wire and varnishing with Class I "Doctor-Beck" varnishing compound including heating and re-assembling the motor, brought back to site, refixing at its original position/ location with proper alignment including connecting, testing and commissioning after repair, etc., complete to the entire satisfaction of the Engineer-in-Charge all as specified and as directed by Engineer-in-Charge.\n Notes : (i) Bearing shall be measured and paid for separately as "supply only" under respective items of this schedule. (ii) Class of insulation shall be as per OEM. | 1 | Each Job | |
| 8 | 8 | M&L for servicing of Centrifugal pump set 10HP capacity by disconnecting/ dismantling (electrically & mechanically) and transporting to workshop, opening the pump motor, cleaning the pump, removing scales, greasing to bearing/ bushes, replacing the worn out bushes, bearings, gland rope, gland nut & bolts, painting the pump with two coats of synthetic enamel painting, re-assembling the pump, brought back to site, fixing it at its original location with proper alignment including connecting, testing and commissioning, etc., complete all as specified and as directed by Engineer-in-Charge.\nNote : Bearing shall be measured and paid for separately as "supply only" under respective items of this schedule. | 1 | Each Job | |
| 9 | 9 | Supply only bearing suitable for motor of 10HP capacity, three phase motor of Centrifugal pumpset. | 2 | Each | |
| 10 | 10 | Supply only Regrigerant gas R-407 C in manufacturer's sealed container. | 60 | Kilogram | |
| 11 | 11 | Supply only compressor oil in 10 ltr pack suitable for compressor of Model SZ 185. \nMake : SERVO, Sheetal or equivalent.\n\nNote for Item Nos 11 & 12 :-\n(i) Gas/ Oil to be supplied in manufacturer's sealed container. (ii) Net weight of cylinder shall be considered for measurement. (iii) Empty containers will be returned to contractor. | 30 | Litre | |
| 12 | 12 | S&F in repair/ replacement of LP/ HP combination cut out/ cut off switch, type MP-15 suitable for working on R-22 gas complete with flare nut. [Make : Danfoss] | 1 | Each | |
| 13 | 13 | S&F in repair/ replacement of oil pressure control/ cut off switch, type MP-55 suitable for R-407C complete with flare nut all as specified. \n[Make : Danfoss] | 1 | Each | |
| 14 | 14 | S&F in repair/ replacement of water pressure cut out 1 PS-70 all as specified. | 1 | Each | |
| 15 | 15 | S&F in repair/ replacement of pressure gauge of LP/ OP (low pressure/ oil pressure) size 4"dia of rating 30 to 150 PSI suitable for working on R-407C gas complete with flare nut all as specified. | 1 | Each | |
| 16 | 16 | S&F in repair/ replacement of high pressure [HP] gauge of dial size 4" dia of rating 0-300kg/sqcm PSI suitable for working on R-407C gas complete with flare nut all as specified. | 1 | Each | |
| 17 | 17 | S&F in repair/ replacement of water pressure gauge of dial size 4" dia of range 0-7 kg/sqcm or 0-100 PSI rating all as specified. | 1 | Each | |
| 18 | 18 | S&F in repair/ replacement of Thermometer with stem suitable for AC plant suitable on working 0 to 50. | 2 | Each | |
| 19 | 19 | S&F in repair/ replacement of Thermostat unit in Central AC plant 50TR capacity suitable on working 10°C to 30°Cas per OEM. | 1 | Each | |
| 20 | 20 | S&F in repair/ replacement of Humidistat unit in Central AC plant 50TR capacity suitable for 0 to 100% as per OEM. | 1 | Each | |
| 21 | 21 | S&F in repair/ replacement of 3 pole Power Contactor type [Model : MNX 25] with coil voltage 230Volts, AC suitable for compressor motor in AHU of Central AC plant all as specified and as directed. [Make : L&T [Cat Part No CS94110] or equivalent] | 1 | Each | |
| 22 | 22 | S&F in repair/ replacement of Bi-metal overload relay, direct mounting type suitable for relay range of 14Amps to 23 Amps. [Make : L&T or equivalent] | 1 | Each | |
| 23 | 23 | S&F in repair/ replacement of Push Buttons suitable for Star Delta Starter | 2 | Set of Two | |
| 24 | 24 | S&F in repair/ replacement of Neon Indicating Lamps 230Volts AC supply | 3 | Each | |
| 25 | 25 | M&L for checking of leakage in the chilled water pipeline at all joints and valves and arrest the leakage by replacing the gasket and tightening of nuts & bolts complete all as specified and as directed. | 1 | Each Job | |
| 26 | 26 | S&F in replacement, gun metal, globe or gate valves, ISI marked, suitable for 50mm bore with iron wheel head, screwed both ends and fixed including taking down old unserviceable gun metal, globe or gate valve complete all as specified and as directed. | 1 | Each | |
| 27 | 27 | S&F in replacement, Cast Iron Butterfly valve suitable for 100mm bore pipe confirming to IS 13095 with provision of suitable GI flanges, nuts, bolts, double washers, rubber gaskets including taking out old unserviceable valve, etc., complete all as specified and as directed. \n | 1 | Each | |
| 28 | 28 | Dismantling existing old unserviceable thermal insulation and S&F thermal insulation for air duct using 25mm thick fibre glass wool of density 24 kg/cum complete all as specified and as directed. | 100 | Square Metre | |
| 29 | 29 | Supply only "V" belt (B/112). | 4 | Each | |
| 30 | 30 | Supply only fan blades for cooling tower as per sample as shown on site. | 6 | Each |
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