Military Engineer Services Tender

M&L for preventive and comprehensive maintenance of central AC chiller Plant of capacity 3x150 TR semihermatic screw chillers type Model – LCWX2-0525D through the OEM i.e, M/s Blue Star for following plants and equipments of WC R134a DX Semihermatic screw chillers Model LCWX2-0525D-3x150 TR, including following complete operations and all as specified and directed: - (a) Checking and rectification, if abnormal noise, vibration, leakage of oil, refrigerant etc. (b) Topping up system with refrigerant and oil, replace dehydrators etc. (c) Checking of operation of oil heater, motor protector, flow switch, loading unloading,O/L etc. (d) Checking of control valves. (e) Develop action plan for rectifying, abnormalities if any observed in performance of the system. (f) To attend break down calls as and when required, investigation, locate defects and submit action plan to rectify the same. (g) All the maintenance/servicing works should be done in such a way so that the equipment/unit can be used for its optimum performance. (h) Adjustments in the system to acieve required temperature & RH level as required by the user. (j) Cleaning of all type of air filters. (k) Checking the performance of AHUs. (l) Descaling of copper tubes of the cooling coil(the water circuit) by suitable means as per manufacturer's recommendation and general standards. (m) Parameters checking before and after servicing. (n) Cleaning of ducting system having diffusers, grills, dampers etc. (o) Servicing of evaporators, expansion valves, water cooled condensers, oil cooler, oil pipings, oil filters, refrigerant pipings, refrigerant filters, solenoid and automatic control valves, AHU control panel. Contd........

Note :- (i) Scope of work also includes supply of materials like Timer, Chiller in-out sensors, Filter Drier and solenoid coil during AMC. (ii) Spare parts required for repair/ replacement will be measured and paid in relevent items of SL No -2 here in after. (iii) Comprehensive maintenance is to be carried out by OEM i.e. M/s Blue Star only. The contractor shall be required to submit a MOU with OEM for the same and it will be an essential requirement in Technical Evaluation stage. The tenderer shall required to upload MOU with OEM otherwise bids shall not be qualify for opening of finance bid. (iv) MOU from autorised dealers of OEM shall not be accepted. (v) Penalty @ Rs. 10,000/- shall be added for every subsequent 12 Hrs period till rectification of defect and making the plant functional.

Disconnecting the defective monoblock pump set from the system, shifting to civil workshop, dismantling the electric motor of capacity 20 HP 3 Phase 415 volts and removing burnt out windings, cleaning the slots, rewinding with super enemelled copper winding wire as per existing gauge and size, varnishing and drying complete, reassembling with pump, replacing the ball bearings as per existing size and make, transporting to site and refixing at original position, and connecting the pump set electrically and mechanically, testing for satisfactory working all as directed. Note :- Dead flanges with nuts, washers and gaskets etc shall be provided by the contractor and unit rate quoted shall deemed to included the cost of the same.