COMPREHENSIVE MAINT FOR CENTRAL AND PACKAGE TYPE AC PLANT AT NAD AREA UNDER AGE B/R ALWAYE

Comprehensive maintenance and routine check up of the chiller unit, Model No: XWC2VS-026AR3 of capacity (2 x 26 TR Working + 1 x 26 TR stand by) water cooled Chilling unit installed at P-10 Magazine Nad Depot on monthly basis, comprising of the following (Higher side of AC plant),Make: Blue Star hermetic scroll compressor Two fixed and one inverter type in one unit using R- 410 A refrigerent, flooded type shell and tube evaporator shell and tube condenser, microprocessor based control panel,star delta/electronic starter with control microprocessor to maintain desired temperature. Preventive Maintenace scope of work:- i) To visit & check the operating parameters of the chillers every quarter / month as per OEM schedules. ii) To review the previous months operating log records and alarm history. iii) To inspect the unit for any unusual vibration, noise etc. iv) To check for a sign of refrigerant leakage and rectifying the same. v) To check the operation of the expansion valves, once a year. vi) To check the proper functioning of microprocessor and take control test. vii) To check / calibrate the flow switch for proper functioning and replace if found defective. viii) To check the antifreeze and carrying out the setting of the same. ix) To check the LP / HP cut out switches and to replace the same, if found defective. x) All the breakdowns including the compressor failure, if any shall be attended and rectified. xi) Check the main electrical panel and replace burned/ defective items such as mccb, mcb, fuses any type digital meters cable legs short pieces of cables etc. xii) Rewinding of the compressor motor, if required. xiii) Testing, arresting and repairing of the leakages including charging of gas/oil topup (cost of nitrogen,refrigerent gas, oil etc included in the quoted rate ) xiv) To attend to the complaints as and when called for. xv) To provide any spare covered under the scope of AC plant.

Comprehensive maintenance and routine check up of following Lower side AC equipments components on monthly basis/as per requirement to ensure the working of all machineries without breakdown, with all materials and labour for smooth functioning of plants complete all as specified and as directed.:- (i) Chilled water pump 5 HP Kirloskar KDI-538 (2 Working & 1 Standby) (ii) Condenser water pump 5 HP Kirloskar KDI-520 (2 Working & 1 Standby) (iii) Induced Draft type 60 TR, Cooling tower of FRP - 02 Nos complete with all accessories, basin, fittings, fan motor etc complete (iv) Air Handling Units of following capacity 16000 CFM - 1 Nos , including replacement/repair of defective electrical accessories of AHU, Belts, electric motors, blower units, cooling coils,dampers etc:-

M & L for Monthly servicing of (i) Air filters in AHU (capacity 16000 CFM - 1 Nos) carefully and cleaning including arrangement of removing of dust and foreign particles from the AHU rooms/filters/coiling coil throughly by using pressure water jet pumps and suitable washing products to ensure general hygeine and upkeeping of AHU rooms, and refixing filters after drying and to ensure the drain lines, strainer, drain pan to arrest the micro/fungal growth inside AHU rooms complete all as specified and directed by Engineer-in-charge. (ii) Cooling Tower of capacity 60 TR - 02 Nos complete with all accessories, basin, fittings, cooling tower fan motors - 02 Nos etc complete all as specified and as directed Note :- (i) Replacement of Air Filter shall be resposibility of contractor if damage occur while removing or refixing. (ii) Servicing of all (3x26TR ) AHUs will be considered as one job (iii) Necessary consumables and cleaning materials required for servicing shall be provided by the contractor

Comprehensive maintenance and routine check up of the Packaged type Inverter condensing unit, Model No: DSAI-1321R3B-O of capacity (2 x 11 TR Working + 1 x 11 TR stand by) Inverter condensing unit installed at P-05 Magazine Nad Depot on monthly basis, comprising of the following (Higher side of AC plant),Make: Blue Star hermetically sealed scroll compressor Two fixed and one inverter type in one unit using R- 410 A refrigerent, flooded type shell and tube evaporator shell and tube condenser, microprocessor based control panel,star delta/electronic starter with control microprocessor to maintain desired temperature. Preventive Maintenace scope of work:- i) To visit & check the operating parameters of the chillers every quarter / month as per OEM schedules. ii) To review the previous months operating log records and alarm history. iii) To inspect the unit for any unusual vibration, noise etc. iv) To check for a sign of refrigerant leakage and rectifying the same. v) To check the operation of the expansion valves, once a year. vi) To check the proper functioning of microprocessor and take control test. vii) To check / calibrate the flow switch for proper functioning and replace if found defective. viii) To check the antifreeze and carrying out the setting of the same. ix) To check the LP / HP cut out switches and to replace the same, if found defective. x) All the breakdowns including the compressor failure, if any shall be attended and rectified. xi) Check the main electrical panel and replace burned/ defective items such as mccb, mcb, fuses any type digital meters cable legs short pieces of cables etc. xii) Rewinding of the compressor motor, if required. xiii) Testing, arresting and repairing of the leakages including charging of gas/oil topup (cost of nitrogen,refrigerent gas, oil etc included in the quoted rate ) xiv) To attend to the complaints as and when called for. xv) To provide any spare covered under the scope of AC plant.