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| 1 | Carry out comprehensive maintenanceas per Original Equipment Manufacturer\"s (OEMs) reccommendations for 30HXC series PRO-DIALOG Plus control Screw- compressor Air-and water cooled Liquid chillersMake Carrier Capacity - 190 TR Chiller Model - 30HXC 190Awith 2 Nos ofcompressor for each Chillerunder Carrier Air conditioning & Refrigeration Limitedschedule preventive maintenance scheme (SPMS) as under with accessories. |
| 2 | Contractor shall providequalifiedtrainedauthorisedCARLservice Engineer and technicians to visitat site with material & labour, testing equipment to check /inspection and routine maitenance the following :-(i) To visit & check the operating parameters of the chillers, all saftey and indicating devices and measuring of voltage, amps and all other parameters every month.(ii) Review the previus mnths operating log records and alarm history.(iii) Inspect the unit for any unusaual vibration, noise etc.(iv) Check for a sign of refrigerant leakage with the system pressure only the rectifying the same. (Leak repair shall be paid seperately).(v) Check the proper functioning of microprocessor and take control test (If required).(vi) Check/calibrate the flow switch for proper functioning (If required).(vii) Check the antifreeze and carrying out the setting of the same(If required).(viii) Check the LP/HP cut out switches and to replace the same, if found defective.(ix) Check the water flow across the cooler/condenser by checking the pressure drop across the shell.(x) Periodical software up-gradation.(xi) Replacement of spares including any type of labour charges and spares parts measured and paid separately.(xii) Installation of spares parts(In case of defective) without refrigerant drawback (Except DGT Senson) etc. |
| 3 | QUARTERLY INSPECTION AND PREVENTIVE MAINTENANCE(i) Cleaning of Pot Strainers in water circuit.(ii) Checking of safety control and switches/replacement if required.(iii) Calibration of meters and gauges/replacement if required.(iv) Cleaning of contact switches, checking of relays, timer etc. replacement if required.(v) Clean/chek the electrical panel of the chiller with air blower. |
| 4 | HALF YEARELY INSPECTIONAND PREVENTIVE MAINTENANCETotal plant overhauling shall be done half yearly, preferably in winter. Prior permission shall have to be taken from the Engineer-in-Charge for the job.(i) Compressor and accessories to be serviced.(ii) Control panel along with gauge to be serviced. |
| 5 | Note : For item No 1.00 to 3.00:-(i)SPECIALINSEPECTIONAND MAINTENANCEDuring operationif machine become unserviceable for thatContractor shall providequalifiedtrainedauthorisedCARLservice Engineer and technicians to visitat site with material & labour, testing equipment to checkand attendcomplaintsas and when calledand rectify the faultwithin 24 hours of the chillers by followingall the recommendations and instruction given in the mannual and service instructions for the product including tags and levels affixed to the equipment , componentand to comply with all otherrelevant safety regulationand as directed by the Engr-in-Charge. (ii) Following will also be part of maintenance :-(a) Cost all consumable item likegrease, cotton vest, Cleaning agent etc shall be included in quotedrate. (b)Spares required for carry out Monthly, Quarterly, Half yearly and Special maintenanceshall measured and paid separately.(c)Cost of any type Testing equipment / Tools required for carry out Quarterly, Half yearly , Special maintenanceshall be included in quoted rate.(d)Cost of any type transportation required for carry out Quarterly, Half yearly, Special maintenanceshall be included in quoted rate.(e)Cost of any type Visit chargesrequired CARLService Engineer and technicians for carry out Quarterly, Annual, Special maintenanceshall be included in quoted rate.(f)Cost of any type consultancy chargesrequiredfor carry out Quarterly, Half yearly, Special maintenanceshall be included in quoted rate. |
| 6 | Note : For item No 1.00 to 3.00 (Contd...):- (iii)Followings are excluded in the above work :-(a) The repair/services of low side equipment such as piping, ducting, filters, grills, pump sets AHUs, AHU Motors, condenser motor chiller pumups etc.(b) Any day to day maintenance and operation and servicing of the plant.(c) Any kind of atmospheric/normal wear and tear, corrosion, chemical pollution of rusting/pitting of the plant/heat exchangers.(d) Painting of the equipmnets.(e) Any kind of modifications including welding work/masonary work/caprntry work/rewiring/ducting/insulations etc.(f) Main electrical panel switches/breakers/fuses and related interconnecting power work other than chillers.(g) Accessories equipment such as water supply lines, drain lines, relief lines, pressure gauges, thermometers etc.(h) Any work related to removal of refrigerant and beyond.(j) Any item or equipment as are recommended or required by insurance companies, government, states, municipal or other authorities.(k) Replacement of any equpment (Compressor, condenser or cooler) as a whole.(l) Descaling of condenser and cooler.(m) Replacemetn of any spare/consumable with refrigerant drawback.(n) Colling tower, motor, fins nozel etc. |
| 7 | M&L for descaling of condenser (02 Nos at a time in one job) with & including supply of chemical complete all as directed by the Engr-in-Charge. (Note :Work to be carried out half yearly.) |
| 8 | Labour only for cooler brushing (02 Nos at a time in one job) without chemicals complete all as directed by the Engr-in-Charge. (Note :Work to be carried out half yearly). |
| 9 | M&L for leak repairing of condenser and cooler (Maximum 5% of total tube can be repair or blank of more that 5% can reduce the chiller effciency and caused further mechnical damage of chller and other component) complete all as directed by Engr-in-Charge. |
| 10 | M&L for leak repairing of the system (without refrigerent drawback) complete all as directed by Engr-in-Charge. |
| 11 | M&L taking down of chiller/condensing Motor (15 HP) from foundation after disconnecting all electric connection. Re-fixing the same after making proper alignment, replacementmetalcoupling alongwith rubber bush complete including nuts/bolts/washers, gland packing (for pump), rusted nuts bolts, insulation, bearing of motor (as per existing size),winding.varnishing, heating andcomplete greasing etc. Testing the same on load complete all as specifiec and directed. |
| 12 | M&L for servicing of AHU ( 04 Nos at a time in one job) of capacity 12500 CFM, cleaning all air filters (internal), drain out pipe, re-alignment of base frame of motor & blower and replacement of V belt (as per existing size as site) complete all as specified and asdirected. |
| 13 | M&L for cleaning the cooling tower properly by scriber form inside and outside, taking out all sludge, rust etc with chemical complete as directed and replacement of fins ( 307 boxes , in each box have 08 nos fins) as per existing sample and apply synthetic enamel paint two coat over a coat of red oxide on all surface including steel ladder, servicing & greasing of motor , valve including PCC for foundation ( 10 mtr x 10 mtr x0.4 mtr) with two coats of weather proof paintetccomplete all as directed by the Engr-in-Charge. |
| 14 | M&L for painting of all outer surface of pipe lines with two coat synthetic enamel paint with colour coding as per IS (as per existing colour) after cleaning/removal of all dust/rust from the outer surfaceall as directed. |
| 15 | M&L for painting of all outer surface of Duct lines with two coat of weather proof acrylic synthetic paint with colour coding as per IS (as per existing colour) after cleaning/removal of all dust/rust from the outer surfaceall as directed. |
| 16 | M&L for taking down butterfly valve of 100mm dia, replacement rubber gaskate, descaling the gate and refixing the same all as directed. |
| 17 | M&L for dismentling of Starter motor, complete checking the wiringand re-connect the same after repair and testing the same after replacement of the following defective spares :-(a) Replacement of contactor of capacity 32 Amp, 3 Pole, 415 Volt, AC rating 1, Type MNX 32 - 01 Nos(b) Replacement of add on auxiliary contact block(2 NO + 2 NC) -01 |
| 18 | M&L for fixing in repair pressure guage (0-16 Kg/Cm2) complete all as directed. |
| 19 | M&L for air filter 5 micron (outer) size 50 cm X 50 cmcomplete all as directed. |
| 20 | M&L for internal oil filter complete all as directed by Engr-in-Charge. |
| 21 | M & Lforexternal oil filter complete all as directed by Engr-in-Charge. |
| 22 | M&L for driver core complete all as directed by Engr-in-Charge. |
| 23 | M & L for compressor oil complete all as directed by Engr-in-Charge. |
| 24 | M&L for Clock board complete all as directed by Engr-in-Charge. |
| 25 | M & L forCable Assembly complete all as directed by Engr-in-Charge. |
| 26 | M&L for Water pump sensor complete all as directed by Engr-in-Charge. |
| 27 | M & L forLP Transducer complete all as directed by Engr-in-Charge. |
| 28 | M&L for HP Transducer complete all as directed by Engr-in-Charge. |
| 29 | M & L forSwitch -HP manual complete all as directed by Engr-in-Charge. |
| 30 | M&L for Oil level switch complete all as directed by the Engr-in-Charge. |
| 31 | M & L for EXV cable Assy complete all as directed by the Engr-in-Charge. |
| 32 | M&L for Phase Sequence relay complete all as directed by Engr-in-Charge. |
| 33 | M & L for Solenoid coil for loader valve complete all as directed by Engr-in-Charge. |
| 34 | M&L for Solenoid coil for unoader valve complete all as directed by Engr-in-Charge. |
| 35 | M & L for Solenoid coil for oil valve complete all as directed by Engr-in-Charge. |
| 36 | M & L for Transducer cable complete all as directed by Engr-in-Charge. |
| 37 | Supply only refrigerant gasR134A. |
| 38 | NOTE: Amount of Rs 21867.00 indicated in tender documents as \"Schedule of Credit\" shall be deducted from the total quoted amount of BOQ. |
