REPAIRS, MAINTENANCE AND REPLACEMENT OF UNSERVICEABLE SPARES OF AIR-CONDITIONING PLANTS COMPRISING CHILLERS/PACKAGED AC UNITS, COMPRESSORS, MOTORS, CONDENSERS, REFRIGERANT CIRCUITS, CONTROL PANELS, STARTERS, SENSORS, CABLING, EARTHING AND ALL CONNECT

Supply, installation, testing and commissioning for replacement of damaged scroll compressor of 10 TR capacity in existing chiller type air conditioning plant, with new hermetically sealed high-efficiency scroll compressor of Blue Star / Bluestar make or equivalent approved make, compatible with existing system configuration, refrigerant (R410A/R407C or equivalent) and operating conditions, including dismantling and safe removal of the existing damaged compressor, supply of new compressor with superior or equivalent performance parameters, replacement of necessary accessories such as filter drier, contactors, oil, refrigerant gas and sealing components, flushing/cleaning of system if required, proper installation with vibration isolation, electrical connections and integration with existing microprocessor control system, updating/reprogramming of control software if required for compatibility and optimal performance, complete testing including pressure testing, vacuumisation, gas charging, leak testing and performance verification, trial run and commissioning to restore full operational efficiency of the plant, and handing over in satisfactory working condition, including all materials, labour, tools, tackles, transportation and incidental works required for complete execution of the job as specified and as directed.

Description All as per Item No 1 above but Supply and Fix in replacement of Hitachi make compressor of 8.5 TR capacity

Supply, installation, testing and commissioning for replacement of blower fan motor of 900 RPM, 230V, single phase, suitable for existing 8.5 TR scroll compressor based air conditioning unit, with new motor conforming to required speed, voltage and capacity, including dismantling and safe removal of existing defective motor, supply and fixing of new motor with compatible mounting, alignment with blower assembly, replacement of coupling, bearings, capacitor and associated electrical components as required, proper wiring and integration with existing control system, testing for rotation, vibration and current parameters, and commissioning to ensure smooth and efficient operation of the unit, complete with all materials, labour, tools, tackles and incidental works as specified and as directed.

Supply, installation, testing and commissioning for replacement of exhaust fan motor of 3 HP, suitable for existing 40 TR chiller unit air conditioning plant, with new motor conforming to required rating, speed, voltage and continuous duty conditions, including dismantling and safe removal of existing defective motor, supply and fixing of new motor with compatible mounting and proper alignment with exhaust fan assembly, replacement of bearings, coupling, starter/capacitor and associated electrical components as required, proper wiring and integration with existing control panel, testing for correct rotation, vibration, insulation resistance and load performance, and commissioning to ensure smooth, reliable and efficient operation of the system, complete with all materials, labour, tools, tackles and incidental works as specified and as directed.