SPECIAL REPAIRS TO 1 X 300 TR CENTRAL AC PLANT AND ALLIED WORKS AT INS EKSILA UNDER GE U I VISAKHAPATNAM.

M&L for rolled mild steel angles, bars, flats etc., as in supports for stiffening of fencing, wall ties, hold fasts, clamps and similar small articles confirming to Fe 410-O or Fe 310-O (Gde.E-250), quality-A including suitable size anchor fasteners grouted in wall at any height for supporting the Air ducts including applying two coats of synthetic enamel paint over a coat of red oxide primer including dismantling complete all as specified and directed. Note: The rate quoted shall be deemed to be inclusive of necessary civil work and its accessories as required at site.

M&L for carry out the de-scaling of shells & tubes for 300 TR capacity of shell and tubes, water cooled type condenser by disconnecting the inlet and outlet water connections and providing of dummy to the inlet & outlet and de-scaling the condenser by circulating the circulated de-scaling agent by R-111 or equivalent chemical or organic compound at the proper ratio circulated chemical till remove complete scale deposit inside the copper tubes, and opening the both end cover by the condenser brushing the copper tubes with appropriate size nylon brush remove complete scale and flushing out the tubes and degreasing with caustic soda solution and flushing and boxing up the both end covers connecting up the water inlet & outlet connections including renewal by damaged rubber gaskets and leak testing the joints for water leakage all as specified and directed.

Supply and charge refrigerant gas R 134A (Environmental friendly) including leak testing the system, arresting the leaks with necessary materials like gasket/ ‘O’ rings/ washers complete all as specified and directed.

M&L for carrying out leak test for 300 TR Chiller system by extracting the existing available Gas from the system to separate cylinder, storing and pressurizing the complete system with Dry nitrogen and check the leaks, identify the leak, rectification of leaks by brazing/welding at the leak points/replacing by damaged valve gland package/Gasket etc and after rectification of all leaks, pressure testing the complete system up to 300 Psig at high side, 200 Psig at low side of the system, holding the pressure for 24 Hours and vacuuming the complete system after releasing the Dry nitrogen and charging the refrigerant Gas to system and testing & commissioning the plant checking all controls complete all as specified and directed.

M&L Carrying out repairs of 300 TR variable speed screw type liquid chiller Central AC plant of capacity 300 TR of Make: Carrier Model : 23XRV3132NRVAA9 as per the following scope of the work given below including carrying out general repairs including periodical servicing to ensure smooth and trouble free operation of plants to the entire satisfaction of users / department complete all as specified and directed.

Supply only Current Transducer Sensor suitable for 300 TR variable speed screw type liquid chiller & of Make : Carrier Model : 23XRV3132NRVAA9 complete all as specified and as directed.

Supply only Assembly PCB Power Inverter Board suitable for 300 TR variable speed screw type liquid chiller & of Make : Carrier Model : 23XRV3132NRVAA9 complete all as specified and as directed.

Supply only 80 Watt Inverter Board suitable for 300 TR variable speed screw type liquid chiller & of Make : Carrier Model : 23XRV3132NRVAA9 complete all as specified and as directed.

Supply only Oil Pump suitable for 300 TR variable speed screw type liquid chiller & of Make : Carrier Model : 23XRV3132NRVAA9 complete all as specified and as directed

Supply only Oil filter suitable for 300 TR variable speed screw type liquid chiller & of Make : Carrier Model : 23XRV3132NRVAA9 complete all as specified and as directed .